aspcud-1.8.0-source/ 0000755 0004047 0000764 00000000000 12263737024 014020 5 ustar kaminski cools aspcud-1.8.0-source/COPYING 0000644 0004047 0000764 00000104513 11537433306 015056 0 ustar kaminski cools GNU GENERAL PUBLIC LICENSE
Version 3, 29 June 2007
Copyright (C) 2007 Free Software Foundation, Inc.
Everyone is permitted to copy and distribute verbatim copies
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Preamble
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Notwithstanding any other provision of this License, you have
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14. Revised Versions of this License.
The Free Software Foundation may publish revised and/or new versions of
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If the Program specifies that a proxy can decide which future
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THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
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IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
SUCH DAMAGES.
17. Interpretation of Sections 15 and 16.
If the disclaimer of warranty and limitation of liability provided
above cannot be given local legal effect according to their terms,
reviewing courts shall apply local law that most closely approximates
an absolute waiver of all civil liability in connection with the
Program, unless a warranty or assumption of liability accompanies a
copy of the Program in return for a fee.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
state the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
Copyright (C)
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see .
Also add information on how to contact you by electronic and paper mail.
If the program does terminal interaction, make it output a short
notice like this when it starts in an interactive mode:
Copyright (C)
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
.
aspcud-1.8.0-source/CMakeLists.txt 0000644 0004047 0000764 00000002761 12010446654 016562 0 ustar kaminski cools cmake_minimum_required(VERSION 2.6)
if("${CMAKE_SOURCE_DIR}" STREQUAL "${CMAKE_BINARY_DIR}")
message(SEND_ERROR "You have to create an out-of-source build")
message(SEND_ERROR "Create a sub-folder and execute cmake there")
message(FATAL_ERROR "The file CmakeCache.txt and directory CMakeFiles in the root directory have to be deleted manually now")
endif()
# user configurables
set(CMAKE_BUILD_TYPE "Release" CACHE STRING "Build type: Release Debug")
project(aspcud)
include(cmake/re2c.cmake)
include(cmake/lemon.cmake)
IF(USE_STATIC_LIBS)
set(CMAKE_EXE_LINK_DYNAMIC_C_FLAGS)
set(CMAKE_EXE_LINK_DYNAMIC_CXX_FLAGS)
set(CMAKE_SHARED_LIBRARY_C_FLAGS)
set(CMAKE_SHARED_LIBRARY_CXX_FLAGS)
set(CMAKE_SHARED_LIBRARY_LINK_C_FLAGS)
set(CMAKE_SHARED_LIBRARY_LINK_CXX_FLAGS)
set(Boost_USE_STATIC_LIBS TRUE)
set(CMAKE_EXE_LINKER_FLAGS "-static")
set(CMAKE_FIND_LIBRARY_SUFFIXES .lib .a)
ENDIF()
set(CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake CACHE INTERNAL "" FORCE)
set(EXECUTABLE_OUTPUT_PATH ${CMAKE_BINARY_DIR}/bin CACHE INTERNAL "" FORCE)
set(LIBRARY_OUTPUT_PATH ${CMAKE_BINARY_DIR}/lib CACHE INTERNAL "" FORCE)
IF(EXISTS "${CMAKE_SOURCE_DIR}/libboost/")
include_directories("libboost")
ELSE()
set(Boost_USE_MULTITHREADED OFF CACHE STRING "Whether to Use multi-threaded boost libraries")
find_package(Boost REQUIRED)
#find_package(Boost COMPONENTS filesystem system)
include_directories(${Boost_INCLUDE_DIRS})
ENDIF()
add_subdirectory(libcudf)
add_subdirectory(libprogram_opts)
add_subdirectory(app)
aspcud-1.8.0-source/cmake/ 0000755 0004047 0000764 00000000000 12263736655 015111 5 ustar kaminski cools aspcud-1.8.0-source/cmake/FindRE2C.cmake 0000644 0004047 0000764 00000000767 11537433306 017407 0 ustar kaminski cools IF(NOT RE2C_FOUND)
FIND_PROGRAM (RE2C_EXE NAMES re2c)
IF (RE2C_EXE)
SET(RE2C_FOUND TRUE CACHE BOOL "Whether re2c has been found")
ENDIF ()
IF (RE2C_FOUND)
IF (NOT RE2C_FIND_QUIETLY)
MESSAGE(STATUS "Looking for re2c... - found ${RE2C_EXECUTABLE}")
ENDIF ()
ELSE ()
IF (RE2C_FIND_REQUIRED)
MESSAGE(FATAL_ERROR "Looking for re2c... - NOT found")
ENDIF ()
MESSAGE(STATUS "Looking for re2c... - NOT found")
ENDIF ()
ENDIF()
IF(RE2C_FOUND)
SET(RE2C_EXECUTABLE ${RE2C_EXE})
ENDIF()
aspcud-1.8.0-source/cmake/PCHSupport.cmake 0000644 0004047 0000764 00000016725 11537433306 020123 0 ustar kaminski cools # - Try to find precompiled headers support for GCC 3.4 and 4.x
# Once done this will define:
#
# Variable:
# PCHSupport_FOUND
#
# Macro:
# ADD_PRECOMPILED_HEADER _targetName _input _dowarn
# ADD_PRECOMPILED_HEADER_TO_TARGET _targetName _input _pch_output_to_use _dowarn
IF(CMAKE_COMPILER_IS_GNUCXX)
EXEC_PROGRAM(
${CMAKE_CXX_COMPILER}
ARGS ${CMAKE_CXX_COMPILER_ARG1} -dumpversion
OUTPUT_VARIABLE gcc_compiler_version)
#MESSAGE("GCC Version: ${gcc_compiler_version}")
IF(gcc_compiler_version MATCHES "4\\.[0-9]\\.[0-9]")
SET(PCHSupport_FOUND TRUE)
ELSE(gcc_compiler_version MATCHES "4\\.[0-9]\\.[0-9]")
IF(gcc_compiler_version MATCHES "3\\.4\\.[0-9]")
SET(PCHSupport_FOUND TRUE)
ENDIF(gcc_compiler_version MATCHES "3\\.4\\.[0-9]")
ENDIF(gcc_compiler_version MATCHES "4\\.[0-9]\\.[0-9]")
SET(_PCH_include_prefix "-I")
ELSE(CMAKE_COMPILER_IS_GNUCXX)
SET(PCHSupport_FOUND FALSE)
ENDIF(CMAKE_COMPILER_IS_GNUCXX)
MACRO(_PCH_GET_COMPILE_FLAGS _out_compile_flags)
STRING(TOUPPER "CMAKE_CXX_FLAGS_${CMAKE_BUILD_TYPE}" _flags_var_name)
SET(${_out_compile_flags} ${${_flags_var_name}} )
IF(CMAKE_COMPILER_IS_GNUCXX)
GET_TARGET_PROPERTY(_targetType ${_PCH_current_target} TYPE)
IF(${_targetType} STREQUAL SHARED_LIBRARY)
LIST(APPEND ${_out_compile_flags} "${${_out_compile_flags}} -fPIC")
ENDIF(${_targetType} STREQUAL SHARED_LIBRARY)
ELSE(CMAKE_COMPILER_IS_GNUCXX)
## TODO ... ? or does it work out of the box
ENDIF(CMAKE_COMPILER_IS_GNUCXX)
GET_DIRECTORY_PROPERTY(DIRINC INCLUDE_DIRECTORIES )
FOREACH(item ${DIRINC})
LIST(APPEND ${_out_compile_flags} "${_PCH_include_prefix}${item}")
ENDFOREACH(item)
GET_DIRECTORY_PROPERTY(_directory_flags DEFINITIONS)
#MESSAGE("_directory_flags ${_directory_flags}" )
LIST(APPEND ${_out_compile_flags} ${_directory_flags})
LIST(APPEND ${_out_compile_flags} ${CMAKE_CXX_FLAGS} )
SEPARATE_ARGUMENTS(${_out_compile_flags})
ENDMACRO(_PCH_GET_COMPILE_FLAGS)
MACRO(_PCH_WRITE_PCHDEP_CXX _targetName _include_file _dephelp)
SET(${_dephelp} ${CMAKE_CURRENT_BINARY_DIR}/${_targetName}_pch_dephelp.cxx)
FILE(WRITE ${${_dephelp}}
"#include \"${_include_file}\"
int testfunction()
{
return 0;
}
"
)
ENDMACRO(_PCH_WRITE_PCHDEP_CXX )
MACRO(_PCH_GET_COMPILE_COMMAND out_command _input _output)
FILE(TO_NATIVE_PATH ${_input} _native_input)
FILE(TO_NATIVE_PATH ${_output} _native_output)
IF(CMAKE_COMPILER_IS_GNUCXX)
IF(CMAKE_CXX_COMPILER_ARG1)
# remove leading space in compiler argument
STRING(REGEX REPLACE "^ +" "" pchsupport_compiler_cxx_arg1 ${CMAKE_CXX_COMPILER_ARG1})
SET(${out_command}
${CMAKE_CXX_COMPILER} ${pchsupport_compiler_cxx_arg1} ${_compile_FLAGS} -x c++-header -o ${_output} ${_input}
)
ELSE(CMAKE_CXX_COMPILER_ARG1)
SET(${out_command}
${CMAKE_CXX_COMPILER} ${_compile_FLAGS} -x c++-header -o ${_output} ${_input}
)
ENDIF(CMAKE_CXX_COMPILER_ARG1)
ELSE(CMAKE_COMPILER_IS_GNUCXX)
SET(_dummy_str "#include <${_input}>")
FILE(WRITE ${CMAKE_CURRENT_BINARY_DIR}/pch_dummy.cpp ${_dummy_str})
SET(${out_command}
${CMAKE_CXX_COMPILER} ${_compile_FLAGS} /c /Fp${_native_output} /Yc${_native_input} pch_dummy.cpp
)
#/out:${_output}
ENDIF(CMAKE_COMPILER_IS_GNUCXX)
ENDMACRO(_PCH_GET_COMPILE_COMMAND )
MACRO(_PCH_GET_TARGET_COMPILE_FLAGS _cflags _header_name _pch_path _dowarn )
FILE(TO_NATIVE_PATH ${_pch_path} _native_pch_path)
IF(CMAKE_COMPILER_IS_GNUCXX)
# for use with distcc and gcc >4.0.1 if preprocessed files are accessible
# on all remote machines set
# PCH_ADDITIONAL_COMPILER_FLAGS to -fpch-preprocess
# if you want warnings for invalid header files (which is very inconvenient
# if you have different versions of the headers for different build types
# you may set _pch_dowarn
IF (_dowarn)
SET(${_cflags} "${PCH_ADDITIONAL_COMPILER_FLAGS} -include ${CMAKE_CURRENT_BINARY_DIR}/${_header_name} -Winvalid-pch " )
ELSE (_dowarn)
SET(${_cflags} "${PCH_ADDITIONAL_COMPILER_FLAGS} -include ${CMAKE_CURRENT_BINARY_DIR}/${_header_name} " )
ENDIF (_dowarn)
ELSE(CMAKE_COMPILER_IS_GNUCXX)
set(${_cflags} "/Fp${_native_pch_path} /Yu${_header_name}" )
ENDIF(CMAKE_COMPILER_IS_GNUCXX)
ENDMACRO(_PCH_GET_TARGET_COMPILE_FLAGS )
MACRO(GET_PRECOMPILED_HEADER_OUTPUT _targetName _input _output)
GET_FILENAME_COMPONENT(_name ${_input} NAME)
GET_FILENAME_COMPONENT(_path ${_input} PATH)
SET(_output "${CMAKE_CURRENT_BINARY_DIR}/${_name}.gch/${_targetName}_${CMAKE_BUILD_TYPE}.h++")
ENDMACRO(GET_PRECOMPILED_HEADER_OUTPUT _targetName _input)
MACRO(ADD_PRECOMPILED_HEADER_TO_TARGET _targetName _input _pch_output_to_use )
# to do: test whether compiler flags match between target _targetName
# and _pch_output_to_use
GET_FILENAME_COMPONENT(_name ${_input} NAME)
IF( "${ARGN}" STREQUAL "0")
SET(_dowarn 0)
ELSE( "${ARGN}" STREQUAL "0")
SET(_dowarn 1)
ENDIF("${ARGN}" STREQUAL "0")
_PCH_GET_TARGET_COMPILE_FLAGS(_target_cflags ${_name} ${_pch_output_to_use} ${_dowarn})
# MESSAGE("Add flags ${_target_cflags} to ${_targetName} " )
SET_TARGET_PROPERTIES(${_targetName}
PROPERTIES
COMPILE_FLAGS ${_target_cflags}
)
ADD_CUSTOM_TARGET(pch_Generate_${_targetName}
DEPENDS ${_pch_output_to_use}
)
ADD_DEPENDENCIES(${_targetName} pch_Generate_${_targetName} )
ENDMACRO(ADD_PRECOMPILED_HEADER_TO_TARGET)
MACRO(ADD_PRECOMPILED_HEADER _targetName _input)
SET(_PCH_current_target ${_targetName})
IF(NOT CMAKE_BUILD_TYPE)
MESSAGE(FATAL_ERROR
"This is the ADD_PRECOMPILED_HEADER macro. "
"You must set CMAKE_BUILD_TYPE!"
)
ENDIF(NOT CMAKE_BUILD_TYPE)
IF( "${ARGN}" STREQUAL "0")
SET(_dowarn 0)
ELSE( "${ARGN}" STREQUAL "0")
SET(_dowarn 1)
ENDIF("${ARGN}" STREQUAL "0")
GET_FILENAME_COMPONENT(_name ${_input} NAME)
GET_FILENAME_COMPONENT(_path ${_input} PATH)
GET_PRECOMPILED_HEADER_OUTPUT( ${_targetName} ${_input} _output)
GET_FILENAME_COMPONENT(_outdir ${_output} PATH )
GET_TARGET_PROPERTY(_targetType ${_PCH_current_target} TYPE)
_PCH_WRITE_PCHDEP_CXX(${_targetName} ${_input} _pch_dephelp_cxx)
IF(${_targetType} STREQUAL SHARED_LIBRARY)
ADD_LIBRARY(${_targetName}_pch_dephelp SHARED ${_pch_dephelp_cxx} )
ELSE(${_targetType} STREQUAL SHARED_LIBRARY)
ADD_LIBRARY(${_targetName}_pch_dephelp STATIC ${_pch_dephelp_cxx})
ENDIF(${_targetType} STREQUAL SHARED_LIBRARY)
FILE(MAKE_DIRECTORY ${_outdir})
_PCH_GET_COMPILE_FLAGS(_compile_FLAGS)
#MESSAGE("_compile_FLAGS: ${_compile_FLAGS}")
#message("COMMAND ${CMAKE_CXX_COMPILER} ${_compile_FLAGS} -x c++-header -o ${_output} ${_input}")
SET_SOURCE_FILES_PROPERTIES(${CMAKE_CURRENT_BINARY_DIR}/${_name} PROPERTIES GENERATED 1)
ADD_CUSTOM_COMMAND(
OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${_name}
COMMAND ${CMAKE_COMMAND} -E copy ${_input} ${CMAKE_CURRENT_BINARY_DIR}/${_name} # ensure same directory! Required by gcc
DEPENDS ${_input}
)
#message("_command ${_input} ${_output}")
_PCH_GET_COMPILE_COMMAND(_command ${CMAKE_CURRENT_BINARY_DIR}/${_name} ${_output} )
#message(${_input} )
#message("_output ${_output}")
ADD_CUSTOM_COMMAND(
OUTPUT ${_output}
COMMAND ${_command}
DEPENDS ${_input} ${CMAKE_CURRENT_BINARY_DIR}/${_name} ${_targetName}_pch_dephelp
)
ADD_PRECOMPILED_HEADER_TO_TARGET(${_targetName} ${_input} ${_output} ${_dowarn})
ENDMACRO(ADD_PRECOMPILED_HEADER)
aspcud-1.8.0-source/cmake/mingw32.cmake 0000644 0004047 0000764 00000000454 11537433306 017372 0 ustar kaminski cools set(CMAKE_SYSTEM_NAME Windows)
set(CMAKE_C_COMPILER mingw32-gcc)
set(CMAKE_CXX_COMPILER mingw32-g++)
SET(CMAKE_FIND_ROOT_PATH /usr/mingw32 $ENV{HOME}/local/mingw32)
SET(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
SET(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
SET(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
aspcud-1.8.0-source/cmake/lemon.cmake 0000644 0004047 0000764 00000003744 11537433306 017223 0 ustar kaminski cools MACRO(LEMON VAR)
FOREACH(SRC ${ARGN})
GET_FILENAME_COMPONENT(DST "${SRC}" PATH)
GET_FILENAME_COMPONENT(NAME "${SRC}" NAME_WE)
IF(NOT EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/${DST}/${NAME}.cpp" AND NOT EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/${DST}/${NAME}.h")
GET_TARGET_PROPERTY(lemon_exists lemon TYPE)
IF(NOT lemon_exists)
IF(CMAKE_CROSSCOMPILING)
# for some reason this has to be done directly in front of the custom command
SET(IMPORT_LEMON "IMPORTFILE-NOTFOUND" CACHE FILEPATH "Path to the export file of the native lemon build")
INCLUDE(${IMPORT_LEMON})
ELSE()
add_subdirectory("${CMAKE_SOURCE_DIR}/lemon" "${CMAKE_BINARY_DIR}/lemon")
ENDIF()
ENDIF()
IF(UNIX)
SET(COPY_OR_LINK create_symlink)
ELSE()
SET(COPY_OR_LINK copy_if_different)
ENDIF()
ADD_CUSTOM_COMMAND(
OUTPUT "${DST}/lempar.c"
COMMAND cmake -E make_directory "${DST}"
COMMAND cmake -E ${COPY_OR_LINK} "${CMAKE_SOURCE_DIR}/lemon/lempar.c" "${DST}/lempar.c"
MAIN_DEPENDENCY "${CMAKE_SOURCE_DIR}/lemon/lempar.c"
)
ADD_CUSTOM_COMMAND(
OUTPUT "${DST}/${NAME}.cpp" "${DST}/${NAME}.h"
COMMAND cmake -E ${COPY_OR_LINK} "${CMAKE_CURRENT_SOURCE_DIR}/${SRC}" "${NAME}.y"
COMMAND lemon -q "${NAME}.y"
COMMAND cmake -E ${COPY_OR_LINK} ${NAME}.c ${NAME}.cpp
MAIN_DEPENDENCY "${SRC}"
DEPENDS lemon "${CMAKE_CURRENT_BINARY_DIR}/${DST}/lempar.c"
WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/${DST}"
)
SET(${VAR} ${${VAR}} "${DST}/${NAME}.cpp" "${DST}/${NAME}.h")
INCLUDE_DIRECTORIES("${CMAKE_CURRENT_BINARY_DIR}/${DST}")
ENDIF()
ENDFOREACH()
ENDMACRO()
aspcud-1.8.0-source/cmake/re2c.cmake 0000644 0004047 0000764 00000001342 11537433306 016734 0 ustar kaminski cools MACRO(RE2C VAR)
FOREACH(SRC ${ARGN})
GET_FILENAME_COMPONENT(DST "${SRC}" PATH)
GET_FILENAME_COMPONENT(NAME "${SRC}" NAME_WE)
IF(NOT EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/${DST}/${NAME}.cpp")
IF(NOT RE2C_EXECUTABLE)
FIND_PACKAGE(RE2C REQUIRED)
ENDIF()
ADD_CUSTOM_COMMAND(
OUTPUT "${DST}/${NAME}.cpp"
COMMAND cmake -E make_directory "${DST}"
COMMAND "${RE2C_EXECUTABLE}" -o "${DST}/${NAME}.cpp" "${CMAKE_CURRENT_SOURCE_DIR}/${SRC}"
MAIN_DEPENDENCY "${SRC}"
)
SET(${VAR} ${${VAR}} "${CMAKE_CURRENT_BINARY_DIR}/${DST}/${NAME}.cpp")
ENDIF()
ENDFOREACH()
ENDMACRO()
aspcud-1.8.0-source/lemon/ 0000755 0004047 0000764 00000000000 12263736734 015141 5 ustar kaminski cools aspcud-1.8.0-source/lemon/CMakeLists.txt 0000644 0004047 0000764 00000000140 11537433306 017664 0 ustar kaminski cools ADD_EXECUTABLE(lemon lemon.c)
EXPORT(TARGETS lemon FILE ${CMAKE_BINARY_DIR}/import_lemon.cmake)
aspcud-1.8.0-source/lemon/lempar.c 0000644 0004047 0000764 00000066160 11537433306 016566 0 ustar kaminski cools /* Driver template for the LEMON parser generator.
** The author disclaims copyright to this source code.
*/
/* First off, code is included that follows the "include" declaration
** in the input grammar file. */
#include
%%
/* Next is all token values, in a form suitable for use by makeheaders.
** This section will be null unless lemon is run with the -m switch.
*/
/*
** These constants (all generated automatically by the parser generator)
** specify the various kinds of tokens (terminals) that the parser
** understands.
**
** Each symbol here is a terminal symbol in the grammar.
*/
%%
/* Make sure the INTERFACE macro is defined.
*/
#ifndef INTERFACE
# define INTERFACE 1
#endif
/* The next thing included is series of defines which control
** various aspects of the generated parser.
** YYCODETYPE is the data type used for storing terminal
** and nonterminal numbers. "unsigned char" is
** used if there are fewer than 250 terminals
** and nonterminals. "int" is used otherwise.
** YYNOCODE is a number of type YYCODETYPE which corresponds
** to no legal terminal or nonterminal number. This
** number is used to fill in empty slots of the hash
** table.
** YYFALLBACK If defined, this indicates that one or more tokens
** have fall-back values which should be used if the
** original value of the token will not parse.
** YYACTIONTYPE is the data type used for storing terminal
** and nonterminal numbers. "unsigned char" is
** used if there are fewer than 250 rules and
** states combined. "int" is used otherwise.
** ParseTOKENTYPE is the data type used for minor tokens given
** directly to the parser from the tokenizer.
** YYMINORTYPE is the data type used for all minor tokens.
** This is typically a union of many types, one of
** which is ParseTOKENTYPE. The entry in the union
** for base tokens is called "yy0".
** YYSTACKDEPTH is the maximum depth of the parser's stack. If
** zero the stack is dynamically sized using realloc()
** ParseARG_SDECL A static variable declaration for the %extra_argument
** ParseARG_PDECL A parameter declaration for the %extra_argument
** ParseARG_STORE Code to store %extra_argument into yypParser
** ParseARG_FETCH Code to extract %extra_argument from yypParser
** YYNSTATE the combined number of states.
** YYNRULE the number of rules in the grammar
** YYERRORSYMBOL is the code number of the error symbol. If not
** defined, then do no error processing.
*/
%%
#define YY_NO_ACTION (YYNSTATE+YYNRULE+2)
#define YY_ACCEPT_ACTION (YYNSTATE+YYNRULE+1)
#define YY_ERROR_ACTION (YYNSTATE+YYNRULE)
/* The yyzerominor constant is used to initialize instances of
** YYMINORTYPE objects to zero. */
static const YYMINORTYPE yyzerominor = { 0 };
/* Define the yytestcase() macro to be a no-op if is not already defined
** otherwise.
**
** Applications can choose to define yytestcase() in the %include section
** to a macro that can assist in verifying code coverage. For production
** code the yytestcase() macro should be turned off. But it is useful
** for testing.
*/
#ifndef yytestcase
# define yytestcase(X)
#endif
/* Next are the tables used to determine what action to take based on the
** current state and lookahead token. These tables are used to implement
** functions that take a state number and lookahead value and return an
** action integer.
**
** Suppose the action integer is N. Then the action is determined as
** follows
**
** 0 <= N < YYNSTATE Shift N. That is, push the lookahead
** token onto the stack and goto state N.
**
** YYNSTATE <= N < YYNSTATE+YYNRULE Reduce by rule N-YYNSTATE.
**
** N == YYNSTATE+YYNRULE A syntax error has occurred.
**
** N == YYNSTATE+YYNRULE+1 The parser accepts its input.
**
** N == YYNSTATE+YYNRULE+2 No such action. Denotes unused
** slots in the yy_action[] table.
**
** The action table is constructed as a single large table named yy_action[].
** Given state S and lookahead X, the action is computed as
**
** yy_action[ yy_shift_ofst[S] + X ]
**
** If the index value yy_shift_ofst[S]+X is out of range or if the value
** yy_lookahead[yy_shift_ofst[S]+X] is not equal to X or if yy_shift_ofst[S]
** is equal to YY_SHIFT_USE_DFLT, it means that the action is not in the table
** and that yy_default[S] should be used instead.
**
** The formula above is for computing the action when the lookahead is
** a terminal symbol. If the lookahead is a non-terminal (as occurs after
** a reduce action) then the yy_reduce_ofst[] array is used in place of
** the yy_shift_ofst[] array and YY_REDUCE_USE_DFLT is used in place of
** YY_SHIFT_USE_DFLT.
**
** The following are the tables generated in this section:
**
** yy_action[] A single table containing all actions.
** yy_lookahead[] A table containing the lookahead for each entry in
** yy_action. Used to detect hash collisions.
** yy_shift_ofst[] For each state, the offset into yy_action for
** shifting terminals.
** yy_reduce_ofst[] For each state, the offset into yy_action for
** shifting non-terminals after a reduce.
** yy_default[] Default action for each state.
*/
%%
#define YY_SZ_ACTTAB (int)(sizeof(yy_action)/sizeof(yy_action[0]))
/* The next table maps tokens into fallback tokens. If a construct
** like the following:
**
** %fallback ID X Y Z.
**
** appears in the grammar, then ID becomes a fallback token for X, Y,
** and Z. Whenever one of the tokens X, Y, or Z is input to the parser
** but it does not parse, the type of the token is changed to ID and
** the parse is retried before an error is thrown.
*/
#ifdef YYFALLBACK
static const YYCODETYPE yyFallback[] = {
%%
};
#endif /* YYFALLBACK */
/* The following structure represents a single element of the
** parser's stack. Information stored includes:
**
** + The state number for the parser at this level of the stack.
**
** + The value of the token stored at this level of the stack.
** (In other words, the "major" token.)
**
** + The semantic value stored at this level of the stack. This is
** the information used by the action routines in the grammar.
** It is sometimes called the "minor" token.
*/
struct yyStackEntry {
YYACTIONTYPE stateno; /* The state-number */
YYCODETYPE major; /* The major token value. This is the code
** number for the token at this stack level */
YYMINORTYPE minor; /* The user-supplied minor token value. This
** is the value of the token */
};
typedef struct yyStackEntry yyStackEntry;
/* The state of the parser is completely contained in an instance of
** the following structure */
struct yyParser {
int yyidx; /* Index of top element in stack */
#ifdef YYTRACKMAXSTACKDEPTH
int yyidxMax; /* Maximum value of yyidx */
#endif
int yyerrcnt; /* Shifts left before out of the error */
ParseARG_SDECL /* A place to hold %extra_argument */
#if YYSTACKDEPTH<=0
int yystksz; /* Current side of the stack */
yyStackEntry *yystack; /* The parser's stack */
#else
yyStackEntry yystack[YYSTACKDEPTH]; /* The parser's stack */
#endif
};
typedef struct yyParser yyParser;
#ifndef NDEBUG
#include
static FILE *yyTraceFILE = 0;
static char *yyTracePrompt = 0;
#endif /* NDEBUG */
#ifndef NDEBUG
/*
** Turn parser tracing on by giving a stream to which to write the trace
** and a prompt to preface each trace message. Tracing is turned off
** by making either argument NULL
**
** Inputs:
**
**
A FILE* to which trace output should be written.
** If NULL, then tracing is turned off.
**
A prefix string written at the beginning of every
** line of trace output. If NULL, then tracing is
** turned off.
**
**
** Outputs:
** None.
*/
void ParseTrace(FILE *TraceFILE, char *zTracePrompt){
yyTraceFILE = TraceFILE;
yyTracePrompt = zTracePrompt;
if( yyTraceFILE==0 ) yyTracePrompt = 0;
else if( yyTracePrompt==0 ) yyTraceFILE = 0;
}
#endif /* NDEBUG */
#ifndef NDEBUG
/* For tracing shifts, the names of all terminals and nonterminals
** are required. The following table supplies these names */
static const char *const yyTokenName[] = {
%%
};
#endif /* NDEBUG */
#ifndef NDEBUG
/* For tracing reduce actions, the names of all rules are required.
*/
static const char *const yyRuleName[] = {
%%
};
#endif /* NDEBUG */
#if YYSTACKDEPTH<=0
/*
** Try to increase the size of the parser stack.
*/
static void yyGrowStack(yyParser *p){
int newSize;
yyStackEntry *pNew;
newSize = p->yystksz*2 + 100;
pNew = (yyStackEntry *)realloc(p->yystack, newSize*sizeof(pNew[0]));
if( pNew ){
p->yystack = pNew;
p->yystksz = newSize;
#ifndef NDEBUG
if( yyTraceFILE ){
fprintf(yyTraceFILE,"%sStack grows to %d entries!\n",
yyTracePrompt, p->yystksz);
}
#endif
}
}
#endif
/*
** This function allocates a new parser.
** The only argument is a pointer to a function which works like
** malloc.
**
** Inputs:
** A pointer to the function used to allocate memory.
**
** Outputs:
** A pointer to a parser. This pointer is used in subsequent calls
** to Parse and ParseFree.
*/
void *ParseAlloc(void *(*mallocProc)(size_t)){
yyParser *pParser;
pParser = (yyParser*)(*mallocProc)( (size_t)sizeof(yyParser) );
if( pParser ){
pParser->yyidx = -1;
#ifdef YYTRACKMAXSTACKDEPTH
pParser->yyidxMax = 0;
#endif
#if YYSTACKDEPTH<=0
pParser->yystack = NULL;
pParser->yystksz = 0;
yyGrowStack(pParser);
#endif
}
return pParser;
}
/* The following function deletes the value associated with a
** symbol. The symbol can be either a terminal or nonterminal.
** "yymajor" is the symbol code, and "yypminor" is a pointer to
** the value.
*/
static void yy_destructor(
yyParser *yypParser, /* The parser */
YYCODETYPE yymajor, /* Type code for object to destroy */
YYMINORTYPE *yypminor /* The object to be destroyed */
){
ParseARG_FETCH;
switch( yymajor ){
/* Here is inserted the actions which take place when a
** terminal or non-terminal is destroyed. This can happen
** when the symbol is popped from the stack during a
** reduce or during error processing or when a parser is
** being destroyed before it is finished parsing.
**
** Note: during a reduce, the only symbols destroyed are those
** which appear on the RHS of the rule, but which are not used
** inside the C code.
*/
%%
default: break; /* If no destructor action specified: do nothing */
}
}
/*
** Pop the parser's stack once.
**
** If there is a destructor routine associated with the token which
** is popped from the stack, then call it.
**
** Return the major token number for the symbol popped.
*/
static int yy_pop_parser_stack(yyParser *pParser){
YYCODETYPE yymajor;
yyStackEntry *yytos = &pParser->yystack[pParser->yyidx];
if( pParser->yyidx<0 ) return 0;
#ifndef NDEBUG
if( yyTraceFILE && pParser->yyidx>=0 ){
fprintf(yyTraceFILE,"%sPopping %s\n",
yyTracePrompt,
yyTokenName[yytos->major]);
}
#endif
yymajor = yytos->major;
yy_destructor(pParser, yymajor, &yytos->minor);
pParser->yyidx--;
return yymajor;
}
/*
** Deallocate and destroy a parser. Destructors are all called for
** all stack elements before shutting the parser down.
**
** Inputs:
**
**
A pointer to the parser. This should be a pointer
** obtained from ParseAlloc.
**
A pointer to a function used to reclaim memory obtained
** from malloc.
**
*/
void ParseFree(
void *p, /* The parser to be deleted */
void (*freeProc)(void*) /* Function used to reclaim memory */
){
yyParser *pParser = (yyParser*)p;
if( pParser==0 ) return;
while( pParser->yyidx>=0 ) yy_pop_parser_stack(pParser);
#if YYSTACKDEPTH<=0
free(pParser->yystack);
#endif
(*freeProc)((void*)pParser);
}
/*
** Return the peak depth of the stack for a parser.
*/
#ifdef YYTRACKMAXSTACKDEPTH
int ParseStackPeak(void *p){
yyParser *pParser = (yyParser*)p;
return pParser->yyidxMax;
}
#endif
/*
** Find the appropriate action for a parser given the terminal
** look-ahead token iLookAhead.
**
** If the look-ahead token is YYNOCODE, then check to see if the action is
** independent of the look-ahead. If it is, return the action, otherwise
** return YY_NO_ACTION.
*/
static int yy_find_shift_action(
yyParser *pParser, /* The parser */
YYCODETYPE iLookAhead /* The look-ahead token */
){
int i;
int stateno = pParser->yystack[pParser->yyidx].stateno;
if( stateno>YY_SHIFT_MAX || (i = yy_shift_ofst[stateno])==YY_SHIFT_USE_DFLT ){
return yy_default[stateno];
}
assert( iLookAhead!=YYNOCODE );
i += iLookAhead;
if( i<0 || i>=YY_SZ_ACTTAB || yy_lookahead[i]!=iLookAhead ){
if( iLookAhead>0 ){
#ifdef YYFALLBACK
YYCODETYPE iFallback; /* Fallback token */
if( iLookAhead %s\n",
yyTracePrompt, yyTokenName[iLookAhead], yyTokenName[iFallback]);
}
#endif
return yy_find_shift_action(pParser, iFallback);
}
#endif
#ifdef YYWILDCARD
{
int j = i - iLookAhead + YYWILDCARD;
if( j>=0 && j %s\n",
yyTracePrompt, yyTokenName[iLookAhead], yyTokenName[YYWILDCARD]);
}
#endif /* NDEBUG */
return yy_action[j];
}
}
#endif /* YYWILDCARD */
}
return yy_default[stateno];
}else{
return yy_action[i];
}
}
/*
** Find the appropriate action for a parser given the non-terminal
** look-ahead token iLookAhead.
**
** If the look-ahead token is YYNOCODE, then check to see if the action is
** independent of the look-ahead. If it is, return the action, otherwise
** return YY_NO_ACTION.
*/
static int yy_find_reduce_action(
int stateno, /* Current state number */
YYCODETYPE iLookAhead /* The look-ahead token */
){
int i;
#ifdef YYERRORSYMBOL
if( stateno>YY_REDUCE_MAX ){
return yy_default[stateno];
}
#else
assert( stateno<=YY_REDUCE_MAX );
#endif
i = yy_reduce_ofst[stateno];
assert( i!=YY_REDUCE_USE_DFLT );
assert( iLookAhead!=YYNOCODE );
i += iLookAhead;
#ifdef YYERRORSYMBOL
if( i<0 || i>=YY_SZ_ACTTAB || yy_lookahead[i]!=iLookAhead ){
return yy_default[stateno];
}
#else
assert( i>=0 && iyyidx--;
#ifndef NDEBUG
if( yyTraceFILE ){
fprintf(yyTraceFILE,"%sStack Overflow!\n",yyTracePrompt);
}
#endif
while( yypParser->yyidx>=0 ) yy_pop_parser_stack(yypParser);
/* Here code is inserted which will execute if the parser
** stack every overflows */
%%
ParseARG_STORE; /* Suppress warning about unused %extra_argument var */
}
/*
** Perform a shift action.
*/
static void yy_shift(
yyParser *yypParser, /* The parser to be shifted */
int yyNewState, /* The new state to shift in */
int yyMajor, /* The major token to shift in */
YYMINORTYPE *yypMinor /* Pointer to the minor token to shift in */
){
yyStackEntry *yytos;
yypParser->yyidx++;
#ifdef YYTRACKMAXSTACKDEPTH
if( yypParser->yyidx>yypParser->yyidxMax ){
yypParser->yyidxMax = yypParser->yyidx;
}
#endif
#if YYSTACKDEPTH>0
if( yypParser->yyidx>=YYSTACKDEPTH ){
yyStackOverflow(yypParser, yypMinor);
return;
}
#else
if( yypParser->yyidx>=yypParser->yystksz ){
yyGrowStack(yypParser);
if( yypParser->yyidx>=yypParser->yystksz ){
yyStackOverflow(yypParser, yypMinor);
return;
}
}
#endif
yytos = &yypParser->yystack[yypParser->yyidx];
yytos->stateno = (YYACTIONTYPE)yyNewState;
yytos->major = (YYCODETYPE)yyMajor;
yytos->minor = *yypMinor;
#ifndef NDEBUG
if( yyTraceFILE && yypParser->yyidx>0 ){
int i;
fprintf(yyTraceFILE,"%sShift %d\n",yyTracePrompt,yyNewState);
fprintf(yyTraceFILE,"%sStack:",yyTracePrompt);
for(i=1; i<=yypParser->yyidx; i++)
fprintf(yyTraceFILE," %s",yyTokenName[yypParser->yystack[i].major]);
fprintf(yyTraceFILE,"\n");
}
#endif
}
/* The following table contains information about every rule that
** is used during the reduce.
*/
static const struct {
YYCODETYPE lhs; /* Symbol on the left-hand side of the rule */
unsigned char nrhs; /* Number of right-hand side symbols in the rule */
} yyRuleInfo[] = {
%%
};
static void yy_accept(yyParser*); /* Forward Declaration */
/*
** Perform a reduce action and the shift that must immediately
** follow the reduce.
*/
static void yy_reduce(
yyParser *yypParser, /* The parser */
int yyruleno /* Number of the rule by which to reduce */
){
int yygoto; /* The next state */
int yyact; /* The next action */
YYMINORTYPE yygotominor; /* The LHS of the rule reduced */
yyStackEntry *yymsp; /* The top of the parser's stack */
int yysize; /* Amount to pop the stack */
ParseARG_FETCH;
yymsp = &yypParser->yystack[yypParser->yyidx];
#ifndef NDEBUG
if( yyTraceFILE && yyruleno>=0
&& yyruleno<(int)(sizeof(yyRuleName)/sizeof(yyRuleName[0])) ){
fprintf(yyTraceFILE, "%sReduce [%s].\n", yyTracePrompt,
yyRuleName[yyruleno]);
}
#endif /* NDEBUG */
/* Silence complaints from purify about yygotominor being uninitialized
** in some cases when it is copied into the stack after the following
** switch. yygotominor is uninitialized when a rule reduces that does
** not set the value of its left-hand side nonterminal. Leaving the
** value of the nonterminal uninitialized is utterly harmless as long
** as the value is never used. So really the only thing this code
** accomplishes is to quieten purify.
**
** 2007-01-16: The wireshark project (www.wireshark.org) reports that
** without this code, their parser segfaults. I'm not sure what there
** parser is doing to make this happen. This is the second bug report
** from wireshark this week. Clearly they are stressing Lemon in ways
** that it has not been previously stressed... (SQLite ticket #2172)
*/
/*memset(&yygotominor, 0, sizeof(yygotominor));*/
yygotominor = yyzerominor;
switch( yyruleno ){
/* Beginning here are the reduction cases. A typical example
** follows:
** case 0:
** #line
** { ... } // User supplied code
** #line
** break;
*/
%%
};
yygoto = yyRuleInfo[yyruleno].lhs;
yysize = yyRuleInfo[yyruleno].nrhs;
yypParser->yyidx -= yysize;
yyact = yy_find_reduce_action(yymsp[-yysize].stateno,(YYCODETYPE)yygoto);
if( yyact < YYNSTATE ){
#ifdef NDEBUG
/* If we are not debugging and the reduce action popped at least
** one element off the stack, then we can push the new element back
** onto the stack here, and skip the stack overflow test in yy_shift().
** That gives a significant speed improvement. */
if( yysize ){
yypParser->yyidx++;
yymsp -= yysize-1;
yymsp->stateno = (YYACTIONTYPE)yyact;
yymsp->major = (YYCODETYPE)yygoto;
yymsp->minor = yygotominor;
}else
#endif
{
yy_shift(yypParser,yyact,yygoto,&yygotominor);
}
}else{
assert( yyact == YYNSTATE + YYNRULE + 1 );
yy_accept(yypParser);
}
}
/*
** The following code executes when the parse fails
*/
#ifndef YYNOERRORRECOVERY
static void yy_parse_failed(
yyParser *yypParser /* The parser */
){
ParseARG_FETCH;
#ifndef NDEBUG
if( yyTraceFILE ){
fprintf(yyTraceFILE,"%sFail!\n",yyTracePrompt);
}
#endif
while( yypParser->yyidx>=0 ) yy_pop_parser_stack(yypParser);
/* Here code is inserted which will be executed whenever the
** parser fails */
%%
ParseARG_STORE; /* Suppress warning about unused %extra_argument variable */
}
#endif /* YYNOERRORRECOVERY */
/*
** The following code executes when a syntax error first occurs.
*/
static void yy_syntax_error(
yyParser *yypParser, /* The parser */
int yymajor, /* The major type of the error token */
YYMINORTYPE yyminor /* The minor type of the error token */
){
(void)yymajor;
(void)yyminor;
ParseARG_FETCH;
#define TOKEN (yyminor.yy0)
%%
ParseARG_STORE; /* Suppress warning about unused %extra_argument variable */
}
/*
** The following is executed when the parser accepts
*/
static void yy_accept(
yyParser *yypParser /* The parser */
){
ParseARG_FETCH;
#ifndef NDEBUG
if( yyTraceFILE ){
fprintf(yyTraceFILE,"%sAccept!\n",yyTracePrompt);
}
#endif
while( yypParser->yyidx>=0 ) yy_pop_parser_stack(yypParser);
/* Here code is inserted which will be executed whenever the
** parser accepts */
%%
ParseARG_STORE; /* Suppress warning about unused %extra_argument variable */
}
/* The main parser program.
** The first argument is a pointer to a structure obtained from
** "ParseAlloc" which describes the current state of the parser.
** The second argument is the major token number. The third is
** the minor token. The fourth optional argument is whatever the
** user wants (and specified in the grammar) and is available for
** use by the action routines.
**
** Inputs:
**
**
A pointer to the parser (an opaque structure.)
**
The major token number.
**
The minor token number.
**
An option argument of a grammar-specified type.
**
**
** Outputs:
** None.
*/
void Parse(
void *yyp, /* The parser */
int yymajor, /* The major token code number */
ParseTOKENTYPE yyminor /* The value for the token */
ParseARG_PDECL /* Optional %extra_argument parameter */
){
YYMINORTYPE yyminorunion;
int yyact; /* The parser action. */
int yyendofinput; /* True if we are at the end of input */
#ifdef YYERRORSYMBOL
int yyerrorhit = 0; /* True if yymajor has invoked an error */
#endif
yyParser *yypParser; /* The parser */
/* (re)initialize the parser, if necessary */
yypParser = (yyParser*)yyp;
if( yypParser->yyidx<0 ){
#if YYSTACKDEPTH<=0
if( yypParser->yystksz <=0 ){
/*memset(&yyminorunion, 0, sizeof(yyminorunion));*/
yyminorunion = yyzerominor;
yyStackOverflow(yypParser, &yyminorunion);
return;
}
#endif
yypParser->yyidx = 0;
yypParser->yyerrcnt = -1;
yypParser->yystack[0].stateno = 0;
yypParser->yystack[0].major = 0;
}
yyminorunion.yy0 = yyminor;
yyendofinput = (yymajor==0);
ParseARG_STORE;
#ifndef NDEBUG
if( yyTraceFILE ){
fprintf(yyTraceFILE,"%sInput %s\n",yyTracePrompt,yyTokenName[yymajor]);
}
#endif
do{
yyact = yy_find_shift_action(yypParser,(YYCODETYPE)yymajor);
if( yyactyyerrcnt--;
yymajor = YYNOCODE;
}else if( yyact < YYNSTATE + YYNRULE ){
yy_reduce(yypParser,yyact-YYNSTATE);
}else{
assert( yyact == YY_ERROR_ACTION );
#ifdef YYERRORSYMBOL
int yymx;
#endif
#ifndef NDEBUG
if( yyTraceFILE ){
fprintf(yyTraceFILE,"%sSyntax Error!\n",yyTracePrompt);
}
#endif
#ifdef YYERRORSYMBOL
/* A syntax error has occurred.
** The response to an error depends upon whether or not the
** grammar defines an error token "ERROR".
**
** This is what we do if the grammar does define ERROR:
**
** * Call the %syntax_error function.
**
** * Begin popping the stack until we enter a state where
** it is legal to shift the error symbol, then shift
** the error symbol.
**
** * Set the error count to three.
**
** * Begin accepting and shifting new tokens. No new error
** processing will occur until three tokens have been
** shifted successfully.
**
*/
if( yypParser->yyerrcnt<0 ){
yy_syntax_error(yypParser,yymajor,yyminorunion);
}
yymx = yypParser->yystack[yypParser->yyidx].major;
if( yymx==YYERRORSYMBOL || yyerrorhit ){
#ifndef NDEBUG
if( yyTraceFILE ){
fprintf(yyTraceFILE,"%sDiscard input token %s\n",
yyTracePrompt,yyTokenName[yymajor]);
}
#endif
yy_destructor(yypParser, (YYCODETYPE)yymajor,&yyminorunion);
yymajor = YYNOCODE;
}else{
while(
yypParser->yyidx >= 0 &&
yymx != YYERRORSYMBOL &&
(yyact = yy_find_reduce_action(
yypParser->yystack[yypParser->yyidx].stateno,
YYERRORSYMBOL)) >= YYNSTATE
){
yy_pop_parser_stack(yypParser);
}
if( yypParser->yyidx < 0 || yymajor==0 ){
yy_destructor(yypParser,(YYCODETYPE)yymajor,&yyminorunion);
yy_parse_failed(yypParser);
yymajor = YYNOCODE;
}else if( yymx!=YYERRORSYMBOL ){
YYMINORTYPE u2;
u2.YYERRSYMDT = 0;
yy_shift(yypParser,yyact,YYERRORSYMBOL,&u2);
}
}
yypParser->yyerrcnt = 3;
yyerrorhit = 1;
#elif defined(YYNOERRORRECOVERY)
/* If the YYNOERRORRECOVERY macro is defined, then do not attempt to
** do any kind of error recovery. Instead, simply invoke the syntax
** error routine and continue going as if nothing had happened.
**
** Applications can set this macro (for example inside %include) if
** they intend to abandon the parse upon the first syntax error seen.
*/
yy_syntax_error(yypParser,yymajor,yyminorunion);
yy_destructor(yypParser,(YYCODETYPE)yymajor,&yyminorunion);
yymajor = YYNOCODE;
#else /* YYERRORSYMBOL is not defined */
/* This is what we do if the grammar does not define ERROR:
**
** * Report an error message, and throw away the input token.
**
** * If the input token is $, then fail the parse.
**
** As before, subsequent error messages are suppressed until
** three input tokens have been successfully shifted.
*/
if( yypParser->yyerrcnt<=0 ){
yy_syntax_error(yypParser,yymajor,yyminorunion);
}
yypParser->yyerrcnt = 3;
yy_destructor(yypParser,(YYCODETYPE)yymajor,&yyminorunion);
if( yyendofinput ){
yy_parse_failed(yypParser);
}
yymajor = YYNOCODE;
#endif
}
}while( yymajor!=YYNOCODE && yypParser->yyidx>=0 );
return;
}
aspcud-1.8.0-source/lemon/lemon.c 0000644 0004047 0000764 00000430052 11537433306 016413 0 ustar kaminski cools /*
** This file contains all sources (including headers) to the LEMON
** LALR(1) parser generator. The sources have been combined into a
** single file to make it easy to include LEMON in the source tree
** and Makefile of another program.
**
** The author of this program disclaims copyright.
*/
#include
#include
#include
#include
#include
#include
#ifndef __WIN32__
# if defined(_WIN32) || defined(WIN32)
# define __WIN32__
# endif
#endif
#ifdef __WIN32__
extern int access();
#else
#include
#endif
/* #define PRIVATE static */
#define PRIVATE
#ifdef TEST
#define MAXRHS 5 /* Set low to exercise exception code */
#else
#define MAXRHS 1000
#endif
static char *msort(char*,char**,int(*)(const char*,const char*));
/*
** Compilers are getting increasingly pedantic about type conversions
** as C evolves ever closer to Ada.... To work around the latest problems
** we have to define the following variant of strlen().
*/
#define lemonStrlen(X) ((int)strlen(X))
static struct action *Action_new(void);
static struct action *Action_sort(struct action *);
/********** From the file "build.h" ************************************/
void FindRulePrecedences();
void FindFirstSets();
void FindStates();
void FindLinks();
void FindFollowSets();
void FindActions();
/********* From the file "configlist.h" *********************************/
void Configlist_init(/* void */);
struct config *Configlist_add(/* struct rule *, int */);
struct config *Configlist_addbasis(/* struct rule *, int */);
void Configlist_closure(/* void */);
void Configlist_sort(/* void */);
void Configlist_sortbasis(/* void */);
struct config *Configlist_return(/* void */);
struct config *Configlist_basis(/* void */);
void Configlist_eat(/* struct config * */);
void Configlist_reset(/* void */);
/********* From the file "error.h" ***************************************/
void ErrorMsg(const char *, int,const char *, ...);
/****** From the file "option.h" ******************************************/
struct s_options {
enum { OPT_FLAG=1, OPT_INT, OPT_DBL, OPT_STR,
OPT_FFLAG, OPT_FINT, OPT_FDBL, OPT_FSTR} type;
char *label;
char *arg;
char *message;
};
int OptInit(/* char**,struct s_options*,FILE* */);
int OptNArgs(/* void */);
char *OptArg(/* int */);
void OptErr(/* int */);
void OptPrint(/* void */);
/******** From the file "parse.h" *****************************************/
void Parse(/* struct lemon *lemp */);
/********* From the file "plink.h" ***************************************/
struct plink *Plink_new(/* void */);
void Plink_add(/* struct plink **, struct config * */);
void Plink_copy(/* struct plink **, struct plink * */);
void Plink_delete(/* struct plink * */);
/********** From the file "report.h" *************************************/
void Reprint(/* struct lemon * */);
void ReportOutput(/* struct lemon * */);
void ReportTable(/* struct lemon * */);
void ReportHeader(/* struct lemon * */);
void CompressTables(/* struct lemon * */);
void ResortStates(/* struct lemon * */);
/********** From the file "set.h" ****************************************/
void SetSize(/* int N */); /* All sets will be of size N */
char *SetNew(/* void */); /* A new set for element 0..N */
void SetFree(/* char* */); /* Deallocate a set */
int SetAdd(/* char*,int */); /* Add element to a set */
int SetUnion(/* char *A,char *B */); /* A <- A U B, thru element N */
#define SetFind(X,Y) (X[Y]) /* True if Y is in set X */
/********** From the file "struct.h" *************************************/
/*
** Principal data structures for the LEMON parser generator.
*/
typedef enum {LEMON_FALSE=0, LEMON_TRUE} Boolean;
/* Symbols (terminals and nonterminals) of the grammar are stored
** in the following: */
struct symbol {
char *name; /* Name of the symbol */
int index; /* Index number for this symbol */
enum {
TERMINAL,
NONTERMINAL,
MULTITERMINAL
} type; /* Symbols are all either TERMINALS or NTs */
struct rule *rule; /* Linked list of rules of this (if an NT) */
struct symbol *fallback; /* fallback token in case this token doesn't parse */
int prec; /* Precedence if defined (-1 otherwise) */
enum e_assoc {
LEFT,
RIGHT,
NONE,
UNK
} assoc; /* Associativity if precedence is defined */
char *firstset; /* First-set for all rules of this symbol */
Boolean lambda; /* True if NT and can generate an empty string */
int useCnt; /* Number of times used */
char *destructor; /* Code which executes whenever this symbol is
** popped from the stack during error processing */
int destLineno; /* Line number for start of destructor */
char *datatype; /* The data type of information held by this
** object. Only used if type==NONTERMINAL */
int dtnum; /* The data type number. In the parser, the value
** stack is a union. The .yy%d element of this
** union is the correct data type for this object */
/* The following fields are used by MULTITERMINALs only */
int nsubsym; /* Number of constituent symbols in the MULTI */
struct symbol **subsym; /* Array of constituent symbols */
};
/* Each production rule in the grammar is stored in the following
** structure. */
struct rule {
struct symbol *lhs; /* Left-hand side of the rule */
char *lhsalias; /* Alias for the LHS (NULL if none) */
int lhsStart; /* True if left-hand side is the start symbol */
int ruleline; /* Line number for the rule */
int nrhs; /* Number of RHS symbols */
struct symbol **rhs; /* The RHS symbols */
char **rhsalias; /* An alias for each RHS symbol (NULL if none) */
int line; /* Line number at which code begins */
char *code; /* The code executed when this rule is reduced */
struct symbol *precsym; /* Precedence symbol for this rule */
int index; /* An index number for this rule */
Boolean canReduce; /* True if this rule is ever reduced */
struct rule *nextlhs; /* Next rule with the same LHS */
struct rule *next; /* Next rule in the global list */
};
/* A configuration is a production rule of the grammar together with
** a mark (dot) showing how much of that rule has been processed so far.
** Configurations also contain a follow-set which is a list of terminal
** symbols which are allowed to immediately follow the end of the rule.
** Every configuration is recorded as an instance of the following: */
struct config {
struct rule *rp; /* The rule upon which the configuration is based */
int dot; /* The parse point */
char *fws; /* Follow-set for this configuration only */
struct plink *fplp; /* Follow-set forward propagation links */
struct plink *bplp; /* Follow-set backwards propagation links */
struct state *stp; /* Pointer to state which contains this */
enum {
COMPLETE, /* The status is used during followset and */
INCOMPLETE /* shift computations */
} status;
struct config *next; /* Next configuration in the state */
struct config *bp; /* The next basis configuration */
};
/* Every shift or reduce operation is stored as one of the following */
struct action {
struct symbol *sp; /* The look-ahead symbol */
enum e_action {
SHIFT,
ACCEPT,
REDUCE,
ERROR,
SSCONFLICT, /* A shift/shift conflict */
SRCONFLICT, /* Was a reduce, but part of a conflict */
RRCONFLICT, /* Was a reduce, but part of a conflict */
SH_RESOLVED, /* Was a shift. Precedence resolved conflict */
RD_RESOLVED, /* Was reduce. Precedence resolved conflict */
NOT_USED /* Deleted by compression */
} type;
union {
struct state *stp; /* The new state, if a shift */
struct rule *rp; /* The rule, if a reduce */
} x;
struct action *next; /* Next action for this state */
struct action *collide; /* Next action with the same hash */
};
/* Each state of the generated parser's finite state machine
** is encoded as an instance of the following structure. */
struct state {
struct config *bp; /* The basis configurations for this state */
struct config *cfp; /* All configurations in this set */
int statenum; /* Sequential number for this state */
struct action *ap; /* Array of actions for this state */
int nTknAct, nNtAct; /* Number of actions on terminals and nonterminals */
int iTknOfst, iNtOfst; /* yy_action[] offset for terminals and nonterms */
int iDflt; /* Default action */
};
#define NO_OFFSET (-2147483647)
/* A followset propagation link indicates that the contents of one
** configuration followset should be propagated to another whenever
** the first changes. */
struct plink {
struct config *cfp; /* The configuration to which linked */
struct plink *next; /* The next propagate link */
};
/* The state vector for the entire parser generator is recorded as
** follows. (LEMON uses no global variables and makes little use of
** static variables. Fields in the following structure can be thought
** of as begin global variables in the program.) */
struct lemon {
struct state **sorted; /* Table of states sorted by state number */
struct rule *rule; /* List of all rules */
int nstate; /* Number of states */
int nrule; /* Number of rules */
int nsymbol; /* Number of terminal and nonterminal symbols */
int nterminal; /* Number of terminal symbols */
struct symbol **symbols; /* Sorted array of pointers to symbols */
int errorcnt; /* Number of errors */
struct symbol *errsym; /* The error symbol */
struct symbol *wildcard; /* Token that matches anything */
char *name; /* Name of the generated parser */
char *arg; /* Declaration of the 3th argument to parser */
char *tokentype; /* Type of terminal symbols in the parser stack */
char *vartype; /* The default type of non-terminal symbols */
char *start; /* Name of the start symbol for the grammar */
char *stacksize; /* Size of the parser stack */
char *include; /* Code to put at the start of the C file */
char *error; /* Code to execute when an error is seen */
char *overflow; /* Code to execute on a stack overflow */
char *failure; /* Code to execute on parser failure */
char *accept; /* Code to execute when the parser excepts */
char *extracode; /* Code appended to the generated file */
char *tokendest; /* Code to execute to destroy token data */
char *vardest; /* Code for the default non-terminal destructor */
char *filename; /* Name of the input file */
char *outname; /* Name of the current output file */
char *tokenprefix; /* A prefix added to token names in the .h file */
int nconflict; /* Number of parsing conflicts */
int tablesize; /* Size of the parse tables */
int basisflag; /* Print only basis configurations */
int has_fallback; /* True if any %fallback is seen in the grammar */
int nolinenosflag; /* True if #line statements should not be printed */
char *argv0; /* Name of the program */
};
#define MemoryCheck(X) if((X)==0){ \
extern void memory_error(); \
memory_error(); \
}
/**************** From the file "table.h" *********************************/
/*
** All code in this file has been automatically generated
** from a specification in the file
** "table.q"
** by the associative array code building program "aagen".
** Do not edit this file! Instead, edit the specification
** file, then rerun aagen.
*/
/*
** Code for processing tables in the LEMON parser generator.
*/
/* Routines for handling a strings */
char *Strsafe();
void Strsafe_init(/* void */);
int Strsafe_insert(/* char * */);
char *Strsafe_find(/* char * */);
/* Routines for handling symbols of the grammar */
struct symbol *Symbol_new();
int Symbolcmpp(/* struct symbol **, struct symbol ** */);
void Symbol_init(/* void */);
int Symbol_insert(/* struct symbol *, char * */);
struct symbol *Symbol_find(/* char * */);
struct symbol *Symbol_Nth(/* int */);
int Symbol_count(/* */);
struct symbol **Symbol_arrayof(/* */);
/* Routines to manage the state table */
int Configcmp(/* struct config *, struct config * */);
struct state *State_new();
void State_init(/* void */);
int State_insert(/* struct state *, struct config * */);
struct state *State_find(/* struct config * */);
struct state **State_arrayof(/* */);
/* Routines used for efficiency in Configlist_add */
void Configtable_init(/* void */);
int Configtable_insert(/* struct config * */);
struct config *Configtable_find(/* struct config * */);
void Configtable_clear(/* int(*)(struct config *) */);
/****************** From the file "action.c" *******************************/
/*
** Routines processing parser actions in the LEMON parser generator.
*/
/* Allocate a new parser action */
static struct action *Action_new(void){
static struct action *freelist = 0;
struct action *new;
if( freelist==0 ){
int i;
int amt = 100;
freelist = (struct action *)calloc(amt, sizeof(struct action));
if( freelist==0 ){
fprintf(stderr,"Unable to allocate memory for a new parser action.");
exit(1);
}
for(i=0; inext;
return new;
}
/* Compare two actions for sorting purposes. Return negative, zero, or
** positive if the first action is less than, equal to, or greater than
** the first
*/
static int actioncmp(
struct action *ap1,
struct action *ap2
){
int rc;
rc = ap1->sp->index - ap2->sp->index;
if( rc==0 ){
rc = (int)ap1->type - (int)ap2->type;
}
if( rc==0 && ap1->type==REDUCE ){
rc = ap1->x.rp->index - ap2->x.rp->index;
}
return rc;
}
/* Sort parser actions */
static struct action *Action_sort(
struct action *ap
){
ap = (struct action *)msort((char *)ap,(char **)&ap->next,
(int(*)(const char*,const char*))actioncmp);
return ap;
}
void Action_add(app,type,sp,arg)
struct action **app;
enum e_action type;
struct symbol *sp;
char *arg;
{
struct action *new;
new = Action_new();
new->next = *app;
*app = new;
new->type = type;
new->sp = sp;
if( type==SHIFT ){
new->x.stp = (struct state *)arg;
}else{
new->x.rp = (struct rule *)arg;
}
}
/********************** New code to implement the "acttab" module ***********/
/*
** This module implements routines use to construct the yy_action[] table.
*/
/*
** The state of the yy_action table under construction is an instance of
** the following structure
*/
typedef struct acttab acttab;
struct acttab {
int nAction; /* Number of used slots in aAction[] */
int nActionAlloc; /* Slots allocated for aAction[] */
struct {
int lookahead; /* Value of the lookahead token */
int action; /* Action to take on the given lookahead */
} *aAction, /* The yy_action[] table under construction */
*aLookahead; /* A single new transaction set */
int mnLookahead; /* Minimum aLookahead[].lookahead */
int mnAction; /* Action associated with mnLookahead */
int mxLookahead; /* Maximum aLookahead[].lookahead */
int nLookahead; /* Used slots in aLookahead[] */
int nLookaheadAlloc; /* Slots allocated in aLookahead[] */
};
/* Return the number of entries in the yy_action table */
#define acttab_size(X) ((X)->nAction)
/* The value for the N-th entry in yy_action */
#define acttab_yyaction(X,N) ((X)->aAction[N].action)
/* The value for the N-th entry in yy_lookahead */
#define acttab_yylookahead(X,N) ((X)->aAction[N].lookahead)
/* Free all memory associated with the given acttab */
void acttab_free(acttab *p){
free( p->aAction );
free( p->aLookahead );
free( p );
}
/* Allocate a new acttab structure */
acttab *acttab_alloc(void){
acttab *p = calloc( 1, sizeof(*p) );
if( p==0 ){
fprintf(stderr,"Unable to allocate memory for a new acttab.");
exit(1);
}
memset(p, 0, sizeof(*p));
return p;
}
/* Add a new action to the current transaction set
*/
void acttab_action(acttab *p, int lookahead, int action){
if( p->nLookahead>=p->nLookaheadAlloc ){
p->nLookaheadAlloc += 25;
p->aLookahead = realloc( p->aLookahead,
sizeof(p->aLookahead[0])*p->nLookaheadAlloc );
if( p->aLookahead==0 ){
fprintf(stderr,"malloc failed\n");
exit(1);
}
}
if( p->nLookahead==0 ){
p->mxLookahead = lookahead;
p->mnLookahead = lookahead;
p->mnAction = action;
}else{
if( p->mxLookaheadmxLookahead = lookahead;
if( p->mnLookahead>lookahead ){
p->mnLookahead = lookahead;
p->mnAction = action;
}
}
p->aLookahead[p->nLookahead].lookahead = lookahead;
p->aLookahead[p->nLookahead].action = action;
p->nLookahead++;
}
/*
** Add the transaction set built up with prior calls to acttab_action()
** into the current action table. Then reset the transaction set back
** to an empty set in preparation for a new round of acttab_action() calls.
**
** Return the offset into the action table of the new transaction.
*/
int acttab_insert(acttab *p){
int i, j, k, n;
assert( p->nLookahead>0 );
/* Make sure we have enough space to hold the expanded action table
** in the worst case. The worst case occurs if the transaction set
** must be appended to the current action table
*/
n = p->mxLookahead + 1;
if( p->nAction + n >= p->nActionAlloc ){
int oldAlloc = p->nActionAlloc;
p->nActionAlloc = p->nAction + n + p->nActionAlloc + 20;
p->aAction = realloc( p->aAction,
sizeof(p->aAction[0])*p->nActionAlloc);
if( p->aAction==0 ){
fprintf(stderr,"malloc failed\n");
exit(1);
}
for(i=oldAlloc; inActionAlloc; i++){
p->aAction[i].lookahead = -1;
p->aAction[i].action = -1;
}
}
/* Scan the existing action table looking for an offset where we can
** insert the current transaction set. Fall out of the loop when that
** offset is found. In the worst case, we fall out of the loop when
** i reaches p->nAction, which means we append the new transaction set.
**
** i is the index in p->aAction[] where p->mnLookahead is inserted.
*/
for(i=0; inAction+p->mnLookahead; i++){
if( p->aAction[i].lookahead<0 ){
for(j=0; jnLookahead; j++){
k = p->aLookahead[j].lookahead - p->mnLookahead + i;
if( k<0 ) break;
if( p->aAction[k].lookahead>=0 ) break;
}
if( jnLookahead ) continue;
for(j=0; jnAction; j++){
if( p->aAction[j].lookahead==j+p->mnLookahead-i ) break;
}
if( j==p->nAction ){
break; /* Fits in empty slots */
}
}else if( p->aAction[i].lookahead==p->mnLookahead ){
if( p->aAction[i].action!=p->mnAction ) continue;
for(j=0; jnLookahead; j++){
k = p->aLookahead[j].lookahead - p->mnLookahead + i;
if( k<0 || k>=p->nAction ) break;
if( p->aLookahead[j].lookahead!=p->aAction[k].lookahead ) break;
if( p->aLookahead[j].action!=p->aAction[k].action ) break;
}
if( jnLookahead ) continue;
n = 0;
for(j=0; jnAction; j++){
if( p->aAction[j].lookahead<0 ) continue;
if( p->aAction[j].lookahead==j+p->mnLookahead-i ) n++;
}
if( n==p->nLookahead ){
break; /* Same as a prior transaction set */
}
}
}
/* Insert transaction set at index i. */
for(j=0; jnLookahead; j++){
k = p->aLookahead[j].lookahead - p->mnLookahead + i;
p->aAction[k] = p->aLookahead[j];
if( k>=p->nAction ) p->nAction = k+1;
}
p->nLookahead = 0;
/* Return the offset that is added to the lookahead in order to get the
** index into yy_action of the action */
return i - p->mnLookahead;
}
/********************** From the file "build.c" *****************************/
/*
** Routines to construction the finite state machine for the LEMON
** parser generator.
*/
/* Find a precedence symbol of every rule in the grammar.
**
** Those rules which have a precedence symbol coded in the input
** grammar using the "[symbol]" construct will already have the
** rp->precsym field filled. Other rules take as their precedence
** symbol the first RHS symbol with a defined precedence. If there
** are not RHS symbols with a defined precedence, the precedence
** symbol field is left blank.
*/
void FindRulePrecedences(xp)
struct lemon *xp;
{
struct rule *rp;
for(rp=xp->rule; rp; rp=rp->next){
if( rp->precsym==0 ){
int i, j;
for(i=0; inrhs && rp->precsym==0; i++){
struct symbol *sp = rp->rhs[i];
if( sp->type==MULTITERMINAL ){
for(j=0; jnsubsym; j++){
if( sp->subsym[j]->prec>=0 ){
rp->precsym = sp->subsym[j];
break;
}
}
}else if( sp->prec>=0 ){
rp->precsym = rp->rhs[i];
}
}
}
}
return;
}
/* Find all nonterminals which will generate the empty string.
** Then go back and compute the first sets of every nonterminal.
** The first set is the set of all terminal symbols which can begin
** a string generated by that nonterminal.
*/
void FindFirstSets(lemp)
struct lemon *lemp;
{
int i, j;
struct rule *rp;
int progress;
for(i=0; insymbol; i++){
lemp->symbols[i]->lambda = LEMON_FALSE;
}
for(i=lemp->nterminal; insymbol; i++){
lemp->symbols[i]->firstset = SetNew();
}
/* First compute all lambdas */
do{
progress = 0;
for(rp=lemp->rule; rp; rp=rp->next){
if( rp->lhs->lambda ) continue;
for(i=0; inrhs; i++){
struct symbol *sp = rp->rhs[i];
if( sp->type!=TERMINAL || sp->lambda==LEMON_FALSE ) break;
}
if( i==rp->nrhs ){
rp->lhs->lambda = LEMON_TRUE;
progress = 1;
}
}
}while( progress );
/* Now compute all first sets */
do{
struct symbol *s1, *s2;
progress = 0;
for(rp=lemp->rule; rp; rp=rp->next){
s1 = rp->lhs;
for(i=0; inrhs; i++){
s2 = rp->rhs[i];
if( s2->type==TERMINAL ){
progress += SetAdd(s1->firstset,s2->index);
break;
}else if( s2->type==MULTITERMINAL ){
for(j=0; jnsubsym; j++){
progress += SetAdd(s1->firstset,s2->subsym[j]->index);
}
break;
}else if( s1==s2 ){
if( s1->lambda==LEMON_FALSE ) break;
}else{
progress += SetUnion(s1->firstset,s2->firstset);
if( s2->lambda==LEMON_FALSE ) break;
}
}
}
}while( progress );
return;
}
/* Compute all LR(0) states for the grammar. Links
** are added to between some states so that the LR(1) follow sets
** can be computed later.
*/
PRIVATE struct state *getstate(/* struct lemon * */); /* forward reference */
void FindStates(lemp)
struct lemon *lemp;
{
struct symbol *sp;
struct rule *rp;
Configlist_init();
/* Find the start symbol */
if( lemp->start ){
sp = Symbol_find(lemp->start);
if( sp==0 ){
ErrorMsg(lemp->filename,0,
"The specified start symbol \"%s\" is not \
in a nonterminal of the grammar. \"%s\" will be used as the start \
symbol instead.",lemp->start,lemp->rule->lhs->name);
lemp->errorcnt++;
sp = lemp->rule->lhs;
}
}else{
sp = lemp->rule->lhs;
}
/* Make sure the start symbol doesn't occur on the right-hand side of
** any rule. Report an error if it does. (YACC would generate a new
** start symbol in this case.) */
for(rp=lemp->rule; rp; rp=rp->next){
int i;
for(i=0; inrhs; i++){
if( rp->rhs[i]==sp ){ /* FIX ME: Deal with multiterminals */
ErrorMsg(lemp->filename,0,
"The start symbol \"%s\" occurs on the \
right-hand side of a rule. This will result in a parser which \
does not work properly.",sp->name);
lemp->errorcnt++;
}
}
}
/* The basis configuration set for the first state
** is all rules which have the start symbol as their
** left-hand side */
for(rp=sp->rule; rp; rp=rp->nextlhs){
struct config *newcfp;
rp->lhsStart = 1;
newcfp = Configlist_addbasis(rp,0);
SetAdd(newcfp->fws,0);
}
/* Compute the first state. All other states will be
** computed automatically during the computation of the first one.
** The returned pointer to the first state is not used. */
(void)getstate(lemp);
return;
}
/* Return a pointer to a state which is described by the configuration
** list which has been built from calls to Configlist_add.
*/
PRIVATE void buildshifts(/* struct lemon *, struct state * */); /* Forwd ref */
PRIVATE struct state *getstate(lemp)
struct lemon *lemp;
{
struct config *cfp, *bp;
struct state *stp;
/* Extract the sorted basis of the new state. The basis was constructed
** by prior calls to "Configlist_addbasis()". */
Configlist_sortbasis();
bp = Configlist_basis();
/* Get a state with the same basis */
stp = State_find(bp);
if( stp ){
/* A state with the same basis already exists! Copy all the follow-set
** propagation links from the state under construction into the
** preexisting state, then return a pointer to the preexisting state */
struct config *x, *y;
for(x=bp, y=stp->bp; x && y; x=x->bp, y=y->bp){
Plink_copy(&y->bplp,x->bplp);
Plink_delete(x->fplp);
x->fplp = x->bplp = 0;
}
cfp = Configlist_return();
Configlist_eat(cfp);
}else{
/* This really is a new state. Construct all the details */
Configlist_closure(lemp); /* Compute the configuration closure */
Configlist_sort(); /* Sort the configuration closure */
cfp = Configlist_return(); /* Get a pointer to the config list */
stp = State_new(); /* A new state structure */
MemoryCheck(stp);
stp->bp = bp; /* Remember the configuration basis */
stp->cfp = cfp; /* Remember the configuration closure */
stp->statenum = lemp->nstate++; /* Every state gets a sequence number */
stp->ap = 0; /* No actions, yet. */
State_insert(stp,stp->bp); /* Add to the state table */
buildshifts(lemp,stp); /* Recursively compute successor states */
}
return stp;
}
/*
** Return true if two symbols are the same.
*/
int same_symbol(a,b)
struct symbol *a;
struct symbol *b;
{
int i;
if( a==b ) return 1;
if( a->type!=MULTITERMINAL ) return 0;
if( b->type!=MULTITERMINAL ) return 0;
if( a->nsubsym!=b->nsubsym ) return 0;
for(i=0; insubsym; i++){
if( a->subsym[i]!=b->subsym[i] ) return 0;
}
return 1;
}
/* Construct all successor states to the given state. A "successor"
** state is any state which can be reached by a shift action.
*/
PRIVATE void buildshifts(lemp,stp)
struct lemon *lemp;
struct state *stp; /* The state from which successors are computed */
{
struct config *cfp; /* For looping thru the config closure of "stp" */
struct config *bcfp; /* For the inner loop on config closure of "stp" */
struct config *new; /* */
struct symbol *sp; /* Symbol following the dot in configuration "cfp" */
struct symbol *bsp; /* Symbol following the dot in configuration "bcfp" */
struct state *newstp; /* A pointer to a successor state */
/* Each configuration becomes complete after it contibutes to a successor
** state. Initially, all configurations are incomplete */
for(cfp=stp->cfp; cfp; cfp=cfp->next) cfp->status = INCOMPLETE;
/* Loop through all configurations of the state "stp" */
for(cfp=stp->cfp; cfp; cfp=cfp->next){
if( cfp->status==COMPLETE ) continue; /* Already used by inner loop */
if( cfp->dot>=cfp->rp->nrhs ) continue; /* Can't shift this config */
Configlist_reset(); /* Reset the new config set */
sp = cfp->rp->rhs[cfp->dot]; /* Symbol after the dot */
/* For every configuration in the state "stp" which has the symbol "sp"
** following its dot, add the same configuration to the basis set under
** construction but with the dot shifted one symbol to the right. */
for(bcfp=cfp; bcfp; bcfp=bcfp->next){
if( bcfp->status==COMPLETE ) continue; /* Already used */
if( bcfp->dot>=bcfp->rp->nrhs ) continue; /* Can't shift this one */
bsp = bcfp->rp->rhs[bcfp->dot]; /* Get symbol after dot */
if( !same_symbol(bsp,sp) ) continue; /* Must be same as for "cfp" */
bcfp->status = COMPLETE; /* Mark this config as used */
new = Configlist_addbasis(bcfp->rp,bcfp->dot+1);
Plink_add(&new->bplp,bcfp);
}
/* Get a pointer to the state described by the basis configuration set
** constructed in the preceding loop */
newstp = getstate(lemp);
/* The state "newstp" is reached from the state "stp" by a shift action
** on the symbol "sp" */
if( sp->type==MULTITERMINAL ){
int i;
for(i=0; insubsym; i++){
Action_add(&stp->ap,SHIFT,sp->subsym[i],(char*)newstp);
}
}else{
Action_add(&stp->ap,SHIFT,sp,(char *)newstp);
}
}
}
/*
** Construct the propagation links
*/
void FindLinks(lemp)
struct lemon *lemp;
{
int i;
struct config *cfp, *other;
struct state *stp;
struct plink *plp;
/* Housekeeping detail:
** Add to every propagate link a pointer back to the state to
** which the link is attached. */
for(i=0; instate; i++){
stp = lemp->sorted[i];
for(cfp=stp->cfp; cfp; cfp=cfp->next){
cfp->stp = stp;
}
}
/* Convert all backlinks into forward links. Only the forward
** links are used in the follow-set computation. */
for(i=0; instate; i++){
stp = lemp->sorted[i];
for(cfp=stp->cfp; cfp; cfp=cfp->next){
for(plp=cfp->bplp; plp; plp=plp->next){
other = plp->cfp;
Plink_add(&other->fplp,cfp);
}
}
}
}
/* Compute all followsets.
**
** A followset is the set of all symbols which can come immediately
** after a configuration.
*/
void FindFollowSets(lemp)
struct lemon *lemp;
{
int i;
struct config *cfp;
struct plink *plp;
int progress;
int change;
for(i=0; instate; i++){
for(cfp=lemp->sorted[i]->cfp; cfp; cfp=cfp->next){
cfp->status = INCOMPLETE;
}
}
do{
progress = 0;
for(i=0; instate; i++){
for(cfp=lemp->sorted[i]->cfp; cfp; cfp=cfp->next){
if( cfp->status==COMPLETE ) continue;
for(plp=cfp->fplp; plp; plp=plp->next){
change = SetUnion(plp->cfp->fws,cfp->fws);
if( change ){
plp->cfp->status = INCOMPLETE;
progress = 1;
}
}
cfp->status = COMPLETE;
}
}
}while( progress );
}
static int resolve_conflict();
/* Compute the reduce actions, and resolve conflicts.
*/
void FindActions(lemp)
struct lemon *lemp;
{
int i,j;
struct config *cfp;
struct state *stp;
struct symbol *sp;
struct rule *rp;
/* Add all of the reduce actions
** A reduce action is added for each element of the followset of
** a configuration which has its dot at the extreme right.
*/
for(i=0; instate; i++){ /* Loop over all states */
stp = lemp->sorted[i];
for(cfp=stp->cfp; cfp; cfp=cfp->next){ /* Loop over all configurations */
if( cfp->rp->nrhs==cfp->dot ){ /* Is dot at extreme right? */
for(j=0; jnterminal; j++){
if( SetFind(cfp->fws,j) ){
/* Add a reduce action to the state "stp" which will reduce by the
** rule "cfp->rp" if the lookahead symbol is "lemp->symbols[j]" */
Action_add(&stp->ap,REDUCE,lemp->symbols[j],(char *)cfp->rp);
}
}
}
}
}
/* Add the accepting token */
if( lemp->start ){
sp = Symbol_find(lemp->start);
if( sp==0 ) sp = lemp->rule->lhs;
}else{
sp = lemp->rule->lhs;
}
/* Add to the first state (which is always the starting state of the
** finite state machine) an action to ACCEPT if the lookahead is the
** start nonterminal. */
Action_add(&lemp->sorted[0]->ap,ACCEPT,sp,0);
/* Resolve conflicts */
for(i=0; instate; i++){
struct action *ap, *nap;
struct state *stp;
stp = lemp->sorted[i];
/* assert( stp->ap ); */
stp->ap = Action_sort(stp->ap);
for(ap=stp->ap; ap && ap->next; ap=ap->next){
for(nap=ap->next; nap && nap->sp==ap->sp; nap=nap->next){
/* The two actions "ap" and "nap" have the same lookahead.
** Figure out which one should be used */
lemp->nconflict += resolve_conflict(ap,nap,lemp->errsym);
}
}
}
/* Report an error for each rule that can never be reduced. */
for(rp=lemp->rule; rp; rp=rp->next) rp->canReduce = LEMON_FALSE;
for(i=0; instate; i++){
struct action *ap;
for(ap=lemp->sorted[i]->ap; ap; ap=ap->next){
if( ap->type==REDUCE ) ap->x.rp->canReduce = LEMON_TRUE;
}
}
for(rp=lemp->rule; rp; rp=rp->next){
if( rp->canReduce ) continue;
ErrorMsg(lemp->filename,rp->ruleline,"This rule can not be reduced.\n");
lemp->errorcnt++;
}
}
/* Resolve a conflict between the two given actions. If the
** conflict can't be resolved, return non-zero.
**
** NO LONGER TRUE:
** To resolve a conflict, first look to see if either action
** is on an error rule. In that case, take the action which
** is not associated with the error rule. If neither or both
** actions are associated with an error rule, then try to
** use precedence to resolve the conflict.
**
** If either action is a SHIFT, then it must be apx. This
** function won't work if apx->type==REDUCE and apy->type==SHIFT.
*/
static int resolve_conflict(apx,apy,errsym)
struct action *apx;
struct action *apy;
struct symbol *errsym; /* The error symbol (if defined. NULL otherwise) */
{
struct symbol *spx, *spy;
int errcnt = 0;
assert( apx->sp==apy->sp ); /* Otherwise there would be no conflict */
if( apx->type==SHIFT && apy->type==SHIFT ){
apy->type = SSCONFLICT;
errcnt++;
}
if( apx->type==SHIFT && apy->type==REDUCE ){
spx = apx->sp;
spy = apy->x.rp->precsym;
if( spy==0 || spx->prec<0 || spy->prec<0 ){
/* Not enough precedence information. */
apy->type = SRCONFLICT;
errcnt++;
}else if( spx->prec>spy->prec ){ /* Lower precedence wins */
apy->type = RD_RESOLVED;
}else if( spx->precprec ){
apx->type = SH_RESOLVED;
}else if( spx->prec==spy->prec && spx->assoc==RIGHT ){ /* Use operator */
apy->type = RD_RESOLVED; /* associativity */
}else if( spx->prec==spy->prec && spx->assoc==LEFT ){ /* to break tie */
apx->type = SH_RESOLVED;
}else{
assert( spx->prec==spy->prec && spx->assoc==NONE );
apy->type = SRCONFLICT;
errcnt++;
}
}else if( apx->type==REDUCE && apy->type==REDUCE ){
spx = apx->x.rp->precsym;
spy = apy->x.rp->precsym;
if( spx==0 || spy==0 || spx->prec<0 ||
spy->prec<0 || spx->prec==spy->prec ){
apy->type = RRCONFLICT;
errcnt++;
}else if( spx->prec>spy->prec ){
apy->type = RD_RESOLVED;
}else if( spx->precprec ){
apx->type = RD_RESOLVED;
}
}else{
assert(
apx->type==SH_RESOLVED ||
apx->type==RD_RESOLVED ||
apx->type==SSCONFLICT ||
apx->type==SRCONFLICT ||
apx->type==RRCONFLICT ||
apy->type==SH_RESOLVED ||
apy->type==RD_RESOLVED ||
apy->type==SSCONFLICT ||
apy->type==SRCONFLICT ||
apy->type==RRCONFLICT
);
/* The REDUCE/SHIFT case cannot happen because SHIFTs come before
** REDUCEs on the list. If we reach this point it must be because
** the parser conflict had already been resolved. */
}
return errcnt;
}
/********************* From the file "configlist.c" *************************/
/*
** Routines to processing a configuration list and building a state
** in the LEMON parser generator.
*/
static struct config *freelist = 0; /* List of free configurations */
static struct config *current = 0; /* Top of list of configurations */
static struct config **currentend = 0; /* Last on list of configs */
static struct config *basis = 0; /* Top of list of basis configs */
static struct config **basisend = 0; /* End of list of basis configs */
/* Return a pointer to a new configuration */
PRIVATE struct config *newconfig(){
struct config *new;
if( freelist==0 ){
int i;
int amt = 3;
freelist = (struct config *)calloc( amt, sizeof(struct config) );
if( freelist==0 ){
fprintf(stderr,"Unable to allocate memory for a new configuration.");
exit(1);
}
for(i=0; inext;
return new;
}
/* The configuration "old" is no longer used */
PRIVATE void deleteconfig(old)
struct config *old;
{
old->next = freelist;
freelist = old;
}
/* Initialized the configuration list builder */
void Configlist_init(){
current = 0;
currentend = ¤t;
basis = 0;
basisend = &basis;
Configtable_init();
return;
}
/* Initialized the configuration list builder */
void Configlist_reset(){
current = 0;
currentend = ¤t;
basis = 0;
basisend = &basis;
Configtable_clear(0);
return;
}
/* Add another configuration to the configuration list */
struct config *Configlist_add(rp,dot)
struct rule *rp; /* The rule */
int dot; /* Index into the RHS of the rule where the dot goes */
{
struct config *cfp, model;
assert( currentend!=0 );
model.rp = rp;
model.dot = dot;
cfp = Configtable_find(&model);
if( cfp==0 ){
cfp = newconfig();
cfp->rp = rp;
cfp->dot = dot;
cfp->fws = SetNew();
cfp->stp = 0;
cfp->fplp = cfp->bplp = 0;
cfp->next = 0;
cfp->bp = 0;
*currentend = cfp;
currentend = &cfp->next;
Configtable_insert(cfp);
}
return cfp;
}
/* Add a basis configuration to the configuration list */
struct config *Configlist_addbasis(rp,dot)
struct rule *rp;
int dot;
{
struct config *cfp, model;
assert( basisend!=0 );
assert( currentend!=0 );
model.rp = rp;
model.dot = dot;
cfp = Configtable_find(&model);
if( cfp==0 ){
cfp = newconfig();
cfp->rp = rp;
cfp->dot = dot;
cfp->fws = SetNew();
cfp->stp = 0;
cfp->fplp = cfp->bplp = 0;
cfp->next = 0;
cfp->bp = 0;
*currentend = cfp;
currentend = &cfp->next;
*basisend = cfp;
basisend = &cfp->bp;
Configtable_insert(cfp);
}
return cfp;
}
/* Compute the closure of the configuration list */
void Configlist_closure(lemp)
struct lemon *lemp;
{
struct config *cfp, *newcfp;
struct rule *rp, *newrp;
struct symbol *sp, *xsp;
int i, dot;
assert( currentend!=0 );
for(cfp=current; cfp; cfp=cfp->next){
rp = cfp->rp;
dot = cfp->dot;
if( dot>=rp->nrhs ) continue;
sp = rp->rhs[dot];
if( sp->type==NONTERMINAL ){
if( sp->rule==0 && sp!=lemp->errsym ){
ErrorMsg(lemp->filename,rp->line,"Nonterminal \"%s\" has no rules.",
sp->name);
lemp->errorcnt++;
}
for(newrp=sp->rule; newrp; newrp=newrp->nextlhs){
newcfp = Configlist_add(newrp,0);
for(i=dot+1; inrhs; i++){
xsp = rp->rhs[i];
if( xsp->type==TERMINAL ){
SetAdd(newcfp->fws,xsp->index);
break;
}else if( xsp->type==MULTITERMINAL ){
int k;
for(k=0; knsubsym; k++){
SetAdd(newcfp->fws, xsp->subsym[k]->index);
}
break;
}else{
SetUnion(newcfp->fws,xsp->firstset);
if( xsp->lambda==LEMON_FALSE ) break;
}
}
if( i==rp->nrhs ) Plink_add(&cfp->fplp,newcfp);
}
}
}
return;
}
/* Sort the configuration list */
void Configlist_sort(){
current = (struct config *)msort((char *)current,(char **)&(current->next),Configcmp);
currentend = 0;
return;
}
/* Sort the basis configuration list */
void Configlist_sortbasis(){
basis = (struct config *)msort((char *)current,(char **)&(current->bp),Configcmp);
basisend = 0;
return;
}
/* Return a pointer to the head of the configuration list and
** reset the list */
struct config *Configlist_return(){
struct config *old;
old = current;
current = 0;
currentend = 0;
return old;
}
/* Return a pointer to the head of the configuration list and
** reset the list */
struct config *Configlist_basis(){
struct config *old;
old = basis;
basis = 0;
basisend = 0;
return old;
}
/* Free all elements of the given configuration list */
void Configlist_eat(cfp)
struct config *cfp;
{
struct config *nextcfp;
for(; cfp; cfp=nextcfp){
nextcfp = cfp->next;
assert( cfp->fplp==0 );
assert( cfp->bplp==0 );
if( cfp->fws ) SetFree(cfp->fws);
deleteconfig(cfp);
}
return;
}
/***************** From the file "error.c" *********************************/
/*
** Code for printing error message.
*/
/* Find a good place to break "msg" so that its length is at least "min"
** but no more than "max". Make the point as close to max as possible.
*/
static int findbreak(msg,min,max)
char *msg;
int min;
int max;
{
int i,spot;
char c;
for(i=spot=min; i<=max; i++){
c = msg[i];
if( c=='\t' ) msg[i] = ' ';
if( c=='\n' ){ msg[i] = ' '; spot = i; break; }
if( c==0 ){ spot = i; break; }
if( c=='-' && i0 ){
sprintf(prefix,"%.*s:%d: ",PREFIXLIMIT-10,filename,lineno);
}else{
sprintf(prefix,"%.*s: ",PREFIXLIMIT-10,filename);
}
prefixsize = lemonStrlen(prefix);
availablewidth = LINEWIDTH - prefixsize;
/* Generate the error message */
vsprintf(errmsg,format,ap);
va_end(ap);
errmsgsize = lemonStrlen(errmsg);
/* Remove trailing '\n's from the error message. */
while( errmsgsize>0 && errmsg[errmsgsize-1]=='\n' ){
errmsg[--errmsgsize] = 0;
}
/* Print the error message */
base = 0;
while( errmsg[base]!=0 ){
end = restart = findbreak(&errmsg[base],0,availablewidth);
restart += base;
while( errmsg[restart]==' ' ) restart++;
fprintf(stdout,"%s%.*s\n",prefix,end,&errmsg[base]);
base = restart;
}
}
/**************** From the file "main.c" ************************************/
/*
** Main program file for the LEMON parser generator.
*/
/* Report an out-of-memory condition and abort. This function
** is used mostly by the "MemoryCheck" macro in struct.h
*/
void memory_error(){
fprintf(stderr,"Out of memory. Aborting...\n");
exit(1);
}
static int nDefine = 0; /* Number of -D options on the command line */
static char **azDefine = 0; /* Name of the -D macros */
/* This routine is called with the argument to each -D command-line option.
** Add the macro defined to the azDefine array.
*/
static void handle_D_option(char *z){
char **paz;
nDefine++;
azDefine = realloc(azDefine, sizeof(azDefine[0])*nDefine);
if( azDefine==0 ){
fprintf(stderr,"out of memory\n");
exit(1);
}
paz = &azDefine[nDefine-1];
*paz = malloc( lemonStrlen(z)+1 );
if( *paz==0 ){
fprintf(stderr,"out of memory\n");
exit(1);
}
strcpy(*paz, z);
for(z=*paz; *z && *z!='='; z++){}
*z = 0;
}
/* The main program. Parse the command line and do it... */
int main(argc,argv)
int argc;
char **argv;
{
static int version = 0;
static int rpflag = 0;
static int basisflag = 0;
static int compress = 0;
static int quiet = 0;
static int statistics = 0;
static int mhflag = 0;
static int nolinenosflag = 0;
static struct s_options options[] = {
{OPT_FLAG, "b", (char*)&basisflag, "Print only the basis in report."},
{OPT_FLAG, "c", (char*)&compress, "Don't compress the action table."},
{OPT_FSTR, "D", (char*)handle_D_option, "Define an %ifdef macro."},
{OPT_FLAG, "g", (char*)&rpflag, "Print grammar without actions."},
{OPT_FLAG, "m", (char*)&mhflag, "Output a makeheaders compatible file."},
{OPT_FLAG, "l", (char*)&nolinenosflag, "Do not print #line statements."},
{OPT_FLAG, "q", (char*)&quiet, "(Quiet) Don't print the report file."},
{OPT_FLAG, "s", (char*)&statistics,
"Print parser stats to standard output."},
{OPT_FLAG, "x", (char*)&version, "Print the version number."},
{OPT_FLAG,0,0,0}
};
int i;
struct lemon lem;
OptInit(argv,options,stderr);
if( version ){
printf("Lemon version 1.0\n");
exit(0);
}
if( OptNArgs()!=1 ){
fprintf(stderr,"Exactly one filename argument is required.\n");
exit(1);
}
memset(&lem, 0, sizeof(lem));
lem.errorcnt = 0;
/* Initialize the machine */
Strsafe_init();
Symbol_init();
State_init();
lem.argv0 = argv[0];
lem.filename = OptArg(0);
lem.basisflag = basisflag;
lem.nolinenosflag = nolinenosflag;
Symbol_new("$");
lem.errsym = Symbol_new("error");
lem.errsym->useCnt = 0;
/* Parse the input file */
Parse(&lem);
if( lem.errorcnt ) exit(lem.errorcnt);
if( lem.nrule==0 ){
fprintf(stderr,"Empty grammar.\n");
exit(1);
}
/* Count and index the symbols of the grammar */
lem.nsymbol = Symbol_count();
Symbol_new("{default}");
lem.symbols = Symbol_arrayof();
for(i=0; i<=lem.nsymbol; i++) lem.symbols[i]->index = i;
qsort(lem.symbols,lem.nsymbol+1,sizeof(struct symbol*),
(int(*)())Symbolcmpp);
for(i=0; i<=lem.nsymbol; i++) lem.symbols[i]->index = i;
for(i=1; isupper(lem.symbols[i]->name[0]); i++);
lem.nterminal = i;
/* Generate a reprint of the grammar, if requested on the command line */
if( rpflag ){
Reprint(&lem);
}else{
/* Initialize the size for all follow and first sets */
SetSize(lem.nterminal+1);
/* Find the precedence for every production rule (that has one) */
FindRulePrecedences(&lem);
/* Compute the lambda-nonterminals and the first-sets for every
** nonterminal */
FindFirstSets(&lem);
/* Compute all LR(0) states. Also record follow-set propagation
** links so that the follow-set can be computed later */
lem.nstate = 0;
FindStates(&lem);
lem.sorted = State_arrayof();
/* Tie up loose ends on the propagation links */
FindLinks(&lem);
/* Compute the follow set of every reducible configuration */
FindFollowSets(&lem);
/* Compute the action tables */
FindActions(&lem);
/* Compress the action tables */
if( compress==0 ) CompressTables(&lem);
/* Reorder and renumber the states so that states with fewer choices
** occur at the end. */
ResortStates(&lem);
/* Generate a report of the parser generated. (the "y.output" file) */
if( !quiet ) ReportOutput(&lem);
/* Generate the source code for the parser */
ReportTable(&lem, mhflag);
/* Produce a header file for use by the scanner. (This step is
** omitted if the "-m" option is used because makeheaders will
** generate the file for us.) */
if( !mhflag ) ReportHeader(&lem);
}
if( statistics ){
printf("Parser statistics: %d terminals, %d nonterminals, %d rules\n",
lem.nterminal, lem.nsymbol - lem.nterminal, lem.nrule);
printf(" %d states, %d parser table entries, %d conflicts\n",
lem.nstate, lem.tablesize, lem.nconflict);
}
if( lem.nconflict ){
fprintf(stderr,"%d parsing conflicts.\n",lem.nconflict);
}
exit(lem.errorcnt + lem.nconflict);
return (lem.errorcnt + lem.nconflict);
}
/******************** From the file "msort.c" *******************************/
/*
** A generic merge-sort program.
**
** USAGE:
** Let "ptr" be a pointer to some structure which is at the head of
** a null-terminated list. Then to sort the list call:
**
** ptr = msort(ptr,&(ptr->next),cmpfnc);
**
** In the above, "cmpfnc" is a pointer to a function which compares
** two instances of the structure and returns an integer, as in
** strcmp. The second argument is a pointer to the pointer to the
** second element of the linked list. This address is used to compute
** the offset to the "next" field within the structure. The offset to
** the "next" field must be constant for all structures in the list.
**
** The function returns a new pointer which is the head of the list
** after sorting.
**
** ALGORITHM:
** Merge-sort.
*/
/*
** Return a pointer to the next structure in the linked list.
*/
#define NEXT(A) (*(char**)(((unsigned long)A)+offset))
/*
** Inputs:
** a: A sorted, null-terminated linked list. (May be null).
** b: A sorted, null-terminated linked list. (May be null).
** cmp: A pointer to the comparison function.
** offset: Offset in the structure to the "next" field.
**
** Return Value:
** A pointer to the head of a sorted list containing the elements
** of both a and b.
**
** Side effects:
** The "next" pointers for elements in the lists a and b are
** changed.
*/
static char *merge(
char *a,
char *b,
int (*cmp)(const char*,const char*),
int offset
){
char *ptr, *head;
if( a==0 ){
head = b;
}else if( b==0 ){
head = a;
}else{
if( (*cmp)(a,b)<0 ){
ptr = a;
a = NEXT(a);
}else{
ptr = b;
b = NEXT(b);
}
head = ptr;
while( a && b ){
if( (*cmp)(a,b)<0 ){
NEXT(ptr) = a;
ptr = a;
a = NEXT(a);
}else{
NEXT(ptr) = b;
ptr = b;
b = NEXT(b);
}
}
if( a ) NEXT(ptr) = a;
else NEXT(ptr) = b;
}
return head;
}
/*
** Inputs:
** list: Pointer to a singly-linked list of structures.
** next: Pointer to pointer to the second element of the list.
** cmp: A comparison function.
**
** Return Value:
** A pointer to the head of a sorted list containing the elements
** orginally in list.
**
** Side effects:
** The "next" pointers for elements in list are changed.
*/
#define LISTSIZE 30
static char *msort(
char *list,
char **next,
int (*cmp)(const char*,const char*)
){
unsigned long offset;
char *ep;
char *set[LISTSIZE];
int i;
offset = (unsigned long)next - (unsigned long)list;
for(i=0; istate = WAITING_FOR_DECL_KEYWORD;
}else if( islower(x[0]) ){
psp->lhs = Symbol_new(x);
psp->nrhs = 0;
psp->lhsalias = 0;
psp->state = WAITING_FOR_ARROW;
}else if( x[0]=='{' ){
if( psp->prevrule==0 ){
ErrorMsg(psp->filename,psp->tokenlineno,
"There is no prior rule opon which to attach the code \
fragment which begins on this line.");
psp->errorcnt++;
}else if( psp->prevrule->code!=0 ){
ErrorMsg(psp->filename,psp->tokenlineno,
"Code fragment beginning on this line is not the first \
to follow the previous rule.");
psp->errorcnt++;
}else{
psp->prevrule->line = psp->tokenlineno;
psp->prevrule->code = &x[1];
}
}else if( x[0]=='[' ){
psp->state = PRECEDENCE_MARK_1;
}else{
ErrorMsg(psp->filename,psp->tokenlineno,
"Token \"%s\" should be either \"%%\" or a nonterminal name.",
x);
psp->errorcnt++;
}
break;
case PRECEDENCE_MARK_1:
if( !isupper(x[0]) ){
ErrorMsg(psp->filename,psp->tokenlineno,
"The precedence symbol must be a terminal.");
psp->errorcnt++;
}else if( psp->prevrule==0 ){
ErrorMsg(psp->filename,psp->tokenlineno,
"There is no prior rule to assign precedence \"[%s]\".",x);
psp->errorcnt++;
}else if( psp->prevrule->precsym!=0 ){
ErrorMsg(psp->filename,psp->tokenlineno,
"Precedence mark on this line is not the first \
to follow the previous rule.");
psp->errorcnt++;
}else{
psp->prevrule->precsym = Symbol_new(x);
}
psp->state = PRECEDENCE_MARK_2;
break;
case PRECEDENCE_MARK_2:
if( x[0]!=']' ){
ErrorMsg(psp->filename,psp->tokenlineno,
"Missing \"]\" on precedence mark.");
psp->errorcnt++;
}
psp->state = WAITING_FOR_DECL_OR_RULE;
break;
case WAITING_FOR_ARROW:
if( x[0]==':' && x[1]==':' && x[2]=='=' ){
psp->state = IN_RHS;
}else if( x[0]=='(' ){
psp->state = LHS_ALIAS_1;
}else{
ErrorMsg(psp->filename,psp->tokenlineno,
"Expected to see a \":\" following the LHS symbol \"%s\".",
psp->lhs->name);
psp->errorcnt++;
psp->state = RESYNC_AFTER_RULE_ERROR;
}
break;
case LHS_ALIAS_1:
if( isalpha(x[0]) ){
psp->lhsalias = x;
psp->state = LHS_ALIAS_2;
}else{
ErrorMsg(psp->filename,psp->tokenlineno,
"\"%s\" is not a valid alias for the LHS \"%s\"\n",
x,psp->lhs->name);
psp->errorcnt++;
psp->state = RESYNC_AFTER_RULE_ERROR;
}
break;
case LHS_ALIAS_2:
if( x[0]==')' ){
psp->state = LHS_ALIAS_3;
}else{
ErrorMsg(psp->filename,psp->tokenlineno,
"Missing \")\" following LHS alias name \"%s\".",psp->lhsalias);
psp->errorcnt++;
psp->state = RESYNC_AFTER_RULE_ERROR;
}
break;
case LHS_ALIAS_3:
if( x[0]==':' && x[1]==':' && x[2]=='=' ){
psp->state = IN_RHS;
}else{
ErrorMsg(psp->filename,psp->tokenlineno,
"Missing \"->\" following: \"%s(%s)\".",
psp->lhs->name,psp->lhsalias);
psp->errorcnt++;
psp->state = RESYNC_AFTER_RULE_ERROR;
}
break;
case IN_RHS:
if( x[0]=='.' ){
struct rule *rp;
rp = (struct rule *)calloc( sizeof(struct rule) +
sizeof(struct symbol*)*psp->nrhs + sizeof(char*)*psp->nrhs, 1);
if( rp==0 ){
ErrorMsg(psp->filename,psp->tokenlineno,
"Can't allocate enough memory for this rule.");
psp->errorcnt++;
psp->prevrule = 0;
}else{
int i;
rp->ruleline = psp->tokenlineno;
rp->rhs = (struct symbol**)&rp[1];
rp->rhsalias = (char**)&(rp->rhs[psp->nrhs]);
for(i=0; inrhs; i++){
rp->rhs[i] = psp->rhs[i];
rp->rhsalias[i] = psp->alias[i];
}
rp->lhs = psp->lhs;
rp->lhsalias = psp->lhsalias;
rp->nrhs = psp->nrhs;
rp->code = 0;
rp->precsym = 0;
rp->index = psp->gp->nrule++;
rp->nextlhs = rp->lhs->rule;
rp->lhs->rule = rp;
rp->next = 0;
if( psp->firstrule==0 ){
psp->firstrule = psp->lastrule = rp;
}else{
psp->lastrule->next = rp;
psp->lastrule = rp;
}
psp->prevrule = rp;
}
psp->state = WAITING_FOR_DECL_OR_RULE;
}else if( isalpha(x[0]) ){
if( psp->nrhs>=MAXRHS ){
ErrorMsg(psp->filename,psp->tokenlineno,
"Too many symbols on RHS of rule beginning at \"%s\".",
x);
psp->errorcnt++;
psp->state = RESYNC_AFTER_RULE_ERROR;
}else{
psp->rhs[psp->nrhs] = Symbol_new(x);
psp->alias[psp->nrhs] = 0;
psp->nrhs++;
}
}else if( (x[0]=='|' || x[0]=='/') && psp->nrhs>0 ){
struct symbol *msp = psp->rhs[psp->nrhs-1];
if( msp->type!=MULTITERMINAL ){
struct symbol *origsp = msp;
msp = calloc(1,sizeof(*msp));
memset(msp, 0, sizeof(*msp));
msp->type = MULTITERMINAL;
msp->nsubsym = 1;
msp->subsym = calloc(1,sizeof(struct symbol*));
msp->subsym[0] = origsp;
msp->name = origsp->name;
psp->rhs[psp->nrhs-1] = msp;
}
msp->nsubsym++;
msp->subsym = realloc(msp->subsym, sizeof(struct symbol*)*msp->nsubsym);
msp->subsym[msp->nsubsym-1] = Symbol_new(&x[1]);
if( islower(x[1]) || islower(msp->subsym[0]->name[0]) ){
ErrorMsg(psp->filename,psp->tokenlineno,
"Cannot form a compound containing a non-terminal");
psp->errorcnt++;
}
}else if( x[0]=='(' && psp->nrhs>0 ){
psp->state = RHS_ALIAS_1;
}else{
ErrorMsg(psp->filename,psp->tokenlineno,
"Illegal character on RHS of rule: \"%s\".",x);
psp->errorcnt++;
psp->state = RESYNC_AFTER_RULE_ERROR;
}
break;
case RHS_ALIAS_1:
if( isalpha(x[0]) ){
psp->alias[psp->nrhs-1] = x;
psp->state = RHS_ALIAS_2;
}else{
ErrorMsg(psp->filename,psp->tokenlineno,
"\"%s\" is not a valid alias for the RHS symbol \"%s\"\n",
x,psp->rhs[psp->nrhs-1]->name);
psp->errorcnt++;
psp->state = RESYNC_AFTER_RULE_ERROR;
}
break;
case RHS_ALIAS_2:
if( x[0]==')' ){
psp->state = IN_RHS;
}else{
ErrorMsg(psp->filename,psp->tokenlineno,
"Missing \")\" following LHS alias name \"%s\".",psp->lhsalias);
psp->errorcnt++;
psp->state = RESYNC_AFTER_RULE_ERROR;
}
break;
case WAITING_FOR_DECL_KEYWORD:
if( isalpha(x[0]) ){
psp->declkeyword = x;
psp->declargslot = 0;
psp->decllinenoslot = 0;
psp->insertLineMacro = 1;
psp->state = WAITING_FOR_DECL_ARG;
if( strcmp(x,"name")==0 ){
psp->declargslot = &(psp->gp->name);
psp->insertLineMacro = 0;
}else if( strcmp(x,"include")==0 ){
psp->declargslot = &(psp->gp->include);
}else if( strcmp(x,"code")==0 ){
psp->declargslot = &(psp->gp->extracode);
}else if( strcmp(x,"token_destructor")==0 ){
psp->declargslot = &psp->gp->tokendest;
}else if( strcmp(x,"default_destructor")==0 ){
psp->declargslot = &psp->gp->vardest;
}else if( strcmp(x,"token_prefix")==0 ){
psp->declargslot = &psp->gp->tokenprefix;
psp->insertLineMacro = 0;
}else if( strcmp(x,"syntax_error")==0 ){
psp->declargslot = &(psp->gp->error);
}else if( strcmp(x,"parse_accept")==0 ){
psp->declargslot = &(psp->gp->accept);
}else if( strcmp(x,"parse_failure")==0 ){
psp->declargslot = &(psp->gp->failure);
}else if( strcmp(x,"stack_overflow")==0 ){
psp->declargslot = &(psp->gp->overflow);
}else if( strcmp(x,"extra_argument")==0 ){
psp->declargslot = &(psp->gp->arg);
psp->insertLineMacro = 0;
}else if( strcmp(x,"token_type")==0 ){
psp->declargslot = &(psp->gp->tokentype);
psp->insertLineMacro = 0;
}else if( strcmp(x,"default_type")==0 ){
psp->declargslot = &(psp->gp->vartype);
psp->insertLineMacro = 0;
}else if( strcmp(x,"stack_size")==0 ){
psp->declargslot = &(psp->gp->stacksize);
psp->insertLineMacro = 0;
}else if( strcmp(x,"start_symbol")==0 ){
psp->declargslot = &(psp->gp->start);
psp->insertLineMacro = 0;
}else if( strcmp(x,"left")==0 ){
psp->preccounter++;
psp->declassoc = LEFT;
psp->state = WAITING_FOR_PRECEDENCE_SYMBOL;
}else if( strcmp(x,"right")==0 ){
psp->preccounter++;
psp->declassoc = RIGHT;
psp->state = WAITING_FOR_PRECEDENCE_SYMBOL;
}else if( strcmp(x,"nonassoc")==0 ){
psp->preccounter++;
psp->declassoc = NONE;
psp->state = WAITING_FOR_PRECEDENCE_SYMBOL;
}else if( strcmp(x,"destructor")==0 ){
psp->state = WAITING_FOR_DESTRUCTOR_SYMBOL;
}else if( strcmp(x,"type")==0 ){
psp->state = WAITING_FOR_DATATYPE_SYMBOL;
}else if( strcmp(x,"fallback")==0 ){
psp->fallback = 0;
psp->state = WAITING_FOR_FALLBACK_ID;
}else if( strcmp(x,"wildcard")==0 ){
psp->state = WAITING_FOR_WILDCARD_ID;
}else{
ErrorMsg(psp->filename,psp->tokenlineno,
"Unknown declaration keyword: \"%%%s\".",x);
psp->errorcnt++;
psp->state = RESYNC_AFTER_DECL_ERROR;
}
}else{
ErrorMsg(psp->filename,psp->tokenlineno,
"Illegal declaration keyword: \"%s\".",x);
psp->errorcnt++;
psp->state = RESYNC_AFTER_DECL_ERROR;
}
break;
case WAITING_FOR_DESTRUCTOR_SYMBOL:
if( !isalpha(x[0]) ){
ErrorMsg(psp->filename,psp->tokenlineno,
"Symbol name missing after %destructor keyword");
psp->errorcnt++;
psp->state = RESYNC_AFTER_DECL_ERROR;
}else{
struct symbol *sp = Symbol_new(x);
psp->declargslot = &sp->destructor;
psp->decllinenoslot = &sp->destLineno;
psp->insertLineMacro = 1;
psp->state = WAITING_FOR_DECL_ARG;
}
break;
case WAITING_FOR_DATATYPE_SYMBOL:
if( !isalpha(x[0]) ){
ErrorMsg(psp->filename,psp->tokenlineno,
"Symbol name missing after %destructor keyword");
psp->errorcnt++;
psp->state = RESYNC_AFTER_DECL_ERROR;
}else{
struct symbol *sp = Symbol_new(x);
psp->declargslot = &sp->datatype;
psp->insertLineMacro = 0;
psp->state = WAITING_FOR_DECL_ARG;
}
break;
case WAITING_FOR_PRECEDENCE_SYMBOL:
if( x[0]=='.' ){
psp->state = WAITING_FOR_DECL_OR_RULE;
}else if( isupper(x[0]) ){
struct symbol *sp;
sp = Symbol_new(x);
if( sp->prec>=0 ){
ErrorMsg(psp->filename,psp->tokenlineno,
"Symbol \"%s\" has already be given a precedence.",x);
psp->errorcnt++;
}else{
sp->prec = psp->preccounter;
sp->assoc = psp->declassoc;
}
}else{
ErrorMsg(psp->filename,psp->tokenlineno,
"Can't assign a precedence to \"%s\".",x);
psp->errorcnt++;
}
break;
case WAITING_FOR_DECL_ARG:
if( x[0]=='{' || x[0]=='\"' || isalnum(x[0]) ){
char *zOld, *zNew, *zBuf, *z;
int nOld, n, nLine, nNew, nBack;
int addLineMacro;
char zLine[50];
zNew = x;
if( zNew[0]=='"' || zNew[0]=='{' ) zNew++;
nNew = lemonStrlen(zNew);
if( *psp->declargslot ){
zOld = *psp->declargslot;
}else{
zOld = "";
}
nOld = lemonStrlen(zOld);
n = nOld + nNew + 20;
addLineMacro = !psp->gp->nolinenosflag && psp->insertLineMacro &&
(psp->decllinenoslot==0 || psp->decllinenoslot[0]!=0);
if( addLineMacro ){
for(z=psp->filename, nBack=0; *z; z++){
if( *z=='\\' ) nBack++;
}
sprintf(zLine, "#line %d ", psp->tokenlineno);
nLine = lemonStrlen(zLine);
n += nLine + lemonStrlen(psp->filename) + nBack;
}
*psp->declargslot = zBuf = realloc(*psp->declargslot, n);
zBuf += nOld;
if( addLineMacro ){
if( nOld && zBuf[-1]!='\n' ){
*(zBuf++) = '\n';
}
memcpy(zBuf, zLine, nLine);
zBuf += nLine;
*(zBuf++) = '"';
for(z=psp->filename; *z; z++){
if( *z=='\\' ){
*(zBuf++) = '\\';
}
*(zBuf++) = *z;
}
*(zBuf++) = '"';
*(zBuf++) = '\n';
}
if( psp->decllinenoslot && psp->decllinenoslot[0]==0 ){
psp->decllinenoslot[0] = psp->tokenlineno;
}
memcpy(zBuf, zNew, nNew);
zBuf += nNew;
*zBuf = 0;
psp->state = WAITING_FOR_DECL_OR_RULE;
}else{
ErrorMsg(psp->filename,psp->tokenlineno,
"Illegal argument to %%%s: %s",psp->declkeyword,x);
psp->errorcnt++;
psp->state = RESYNC_AFTER_DECL_ERROR;
}
break;
case WAITING_FOR_FALLBACK_ID:
if( x[0]=='.' ){
psp->state = WAITING_FOR_DECL_OR_RULE;
}else if( !isupper(x[0]) ){
ErrorMsg(psp->filename, psp->tokenlineno,
"%%fallback argument \"%s\" should be a token", x);
psp->errorcnt++;
}else{
struct symbol *sp = Symbol_new(x);
if( psp->fallback==0 ){
psp->fallback = sp;
}else if( sp->fallback ){
ErrorMsg(psp->filename, psp->tokenlineno,
"More than one fallback assigned to token %s", x);
psp->errorcnt++;
}else{
sp->fallback = psp->fallback;
psp->gp->has_fallback = 1;
}
}
break;
case WAITING_FOR_WILDCARD_ID:
if( x[0]=='.' ){
psp->state = WAITING_FOR_DECL_OR_RULE;
}else if( !isupper(x[0]) ){
ErrorMsg(psp->filename, psp->tokenlineno,
"%%wildcard argument \"%s\" should be a token", x);
psp->errorcnt++;
}else{
struct symbol *sp = Symbol_new(x);
if( psp->gp->wildcard==0 ){
psp->gp->wildcard = sp;
}else{
ErrorMsg(psp->filename, psp->tokenlineno,
"Extra wildcard to token: %s", x);
psp->errorcnt++;
}
}
break;
case RESYNC_AFTER_RULE_ERROR:
/* if( x[0]=='.' ) psp->state = WAITING_FOR_DECL_OR_RULE;
** break; */
case RESYNC_AFTER_DECL_ERROR:
if( x[0]=='.' ) psp->state = WAITING_FOR_DECL_OR_RULE;
if( x[0]=='%' ) psp->state = WAITING_FOR_DECL_KEYWORD;
break;
}
}
/* Run the preprocessor over the input file text. The global variables
** azDefine[0] through azDefine[nDefine-1] contains the names of all defined
** macros. This routine looks for "%ifdef" and "%ifndef" and "%endif" and
** comments them out. Text in between is also commented out as appropriate.
*/
static void preprocess_input(char *z){
int i, j, k, n;
int exclude = 0;
int start = 0;
int lineno = 1;
int start_lineno = 1;
for(i=0; z[i]; i++){
if( z[i]=='\n' ) lineno++;
if( z[i]!='%' || (i>0 && z[i-1]!='\n') ) continue;
if( strncmp(&z[i],"%endif",6)==0 && isspace(z[i+6]) ){
if( exclude ){
exclude--;
if( exclude==0 ){
for(j=start; jfilename;
ps.errorcnt = 0;
ps.state = INITIALIZE;
/* Begin by reading the input file */
fp = fopen(ps.filename,"rb");
if( fp==0 ){
ErrorMsg(ps.filename,0,"Can't open this file for reading.");
gp->errorcnt++;
return;
}
fseek(fp,0,2);
filesize = ftell(fp);
rewind(fp);
filebuf = (char *)malloc( filesize+1 );
if( filebuf==0 ){
ErrorMsg(ps.filename,0,"Can't allocate %d of memory to hold this file.",
filesize+1);
gp->errorcnt++;
return;
}
if( fread(filebuf,1,filesize,fp)!=filesize ){
ErrorMsg(ps.filename,0,"Can't read in all %d bytes of this file.",
filesize);
free(filebuf);
gp->errorcnt++;
return;
}
fclose(fp);
filebuf[filesize] = 0;
/* Make an initial pass through the file to handle %ifdef and %ifndef */
preprocess_input(filebuf);
/* Now scan the text of the input file */
lineno = 1;
for(cp=filebuf; (c= *cp)!=0; ){
if( c=='\n' ) lineno++; /* Keep track of the line number */
if( isspace(c) ){ cp++; continue; } /* Skip all white space */
if( c=='/' && cp[1]=='/' ){ /* Skip C++ style comments */
cp+=2;
while( (c= *cp)!=0 && c!='\n' ) cp++;
continue;
}
if( c=='/' && cp[1]=='*' ){ /* Skip C style comments */
cp+=2;
while( (c= *cp)!=0 && (c!='/' || cp[-1]!='*') ){
if( c=='\n' ) lineno++;
cp++;
}
if( c ) cp++;
continue;
}
ps.tokenstart = cp; /* Mark the beginning of the token */
ps.tokenlineno = lineno; /* Linenumber on which token begins */
if( c=='\"' ){ /* String literals */
cp++;
while( (c= *cp)!=0 && c!='\"' ){
if( c=='\n' ) lineno++;
cp++;
}
if( c==0 ){
ErrorMsg(ps.filename,startline,
"String starting on this line is not terminated before the end of the file.");
ps.errorcnt++;
nextcp = cp;
}else{
nextcp = cp+1;
}
}else if( c=='{' ){ /* A block of C code */
int level;
cp++;
for(level=1; (c= *cp)!=0 && (level>1 || c!='}'); cp++){
if( c=='\n' ) lineno++;
else if( c=='{' ) level++;
else if( c=='}' ) level--;
else if( c=='/' && cp[1]=='*' ){ /* Skip comments */
int prevc;
cp = &cp[2];
prevc = 0;
while( (c= *cp)!=0 && (c!='/' || prevc!='*') ){
if( c=='\n' ) lineno++;
prevc = c;
cp++;
}
}else if( c=='/' && cp[1]=='/' ){ /* Skip C++ style comments too */
cp = &cp[2];
while( (c= *cp)!=0 && c!='\n' ) cp++;
if( c ) lineno++;
}else if( c=='\'' || c=='\"' ){ /* String a character literals */
int startchar, prevc;
startchar = c;
prevc = 0;
for(cp++; (c= *cp)!=0 && (c!=startchar || prevc=='\\'); cp++){
if( c=='\n' ) lineno++;
if( prevc=='\\' ) prevc = 0;
else prevc = c;
}
}
}
if( c==0 ){
ErrorMsg(ps.filename,ps.tokenlineno,
"C code starting on this line is not terminated before the end of the file.");
ps.errorcnt++;
nextcp = cp;
}else{
nextcp = cp+1;
}
}else if( isalnum(c) ){ /* Identifiers */
while( (c= *cp)!=0 && (isalnum(c) || c=='_') ) cp++;
nextcp = cp;
}else if( c==':' && cp[1]==':' && cp[2]=='=' ){ /* The operator "::=" */
cp += 3;
nextcp = cp;
}else if( (c=='/' || c=='|') && isalpha(cp[1]) ){
cp += 2;
while( (c = *cp)!=0 && (isalnum(c) || c=='_') ) cp++;
nextcp = cp;
}else{ /* All other (one character) operators */
cp++;
nextcp = cp;
}
c = *cp;
*cp = 0; /* Null terminate the token */
parseonetoken(&ps); /* Parse the token */
*cp = c; /* Restore the buffer */
cp = nextcp;
}
free(filebuf); /* Release the buffer after parsing */
gp->rule = ps.firstrule;
gp->errorcnt = ps.errorcnt;
}
/*************************** From the file "plink.c" *********************/
/*
** Routines processing configuration follow-set propagation links
** in the LEMON parser generator.
*/
static struct plink *plink_freelist = 0;
/* Allocate a new plink */
struct plink *Plink_new(){
struct plink *new;
if( plink_freelist==0 ){
int i;
int amt = 100;
plink_freelist = (struct plink *)calloc( amt, sizeof(struct plink) );
if( plink_freelist==0 ){
fprintf(stderr,
"Unable to allocate memory for a new follow-set propagation link.\n");
exit(1);
}
for(i=0; inext;
return new;
}
/* Add a plink to a plink list */
void Plink_add(plpp,cfp)
struct plink **plpp;
struct config *cfp;
{
struct plink *new;
new = Plink_new();
new->next = *plpp;
*plpp = new;
new->cfp = cfp;
}
/* Transfer every plink on the list "from" to the list "to" */
void Plink_copy(to,from)
struct plink **to;
struct plink *from;
{
struct plink *nextpl;
while( from ){
nextpl = from->next;
from->next = *to;
*to = from;
from = nextpl;
}
}
/* Delete every plink on the list */
void Plink_delete(plp)
struct plink *plp;
{
struct plink *nextpl;
while( plp ){
nextpl = plp->next;
plp->next = plink_freelist;
plink_freelist = plp;
plp = nextpl;
}
}
/*********************** From the file "report.c" **************************/
/*
** Procedures for generating reports and tables in the LEMON parser generator.
*/
/* Generate a filename with the given suffix. Space to hold the
** name comes from malloc() and must be freed by the calling
** function.
*/
PRIVATE char *file_makename(lemp,suffix)
struct lemon *lemp;
char *suffix;
{
char *name;
char *cp;
name = malloc( lemonStrlen(lemp->filename) + lemonStrlen(suffix) + 5 );
if( name==0 ){
fprintf(stderr,"Can't allocate space for a filename.\n");
exit(1);
}
strcpy(name,lemp->filename);
cp = strrchr(name,'.');
if( cp ) *cp = 0;
strcat(name,suffix);
return name;
}
/* Open a file with a name based on the name of the input file,
** but with a different (specified) suffix, and return a pointer
** to the stream */
PRIVATE FILE *file_open(lemp,suffix,mode)
struct lemon *lemp;
char *suffix;
char *mode;
{
FILE *fp;
if( lemp->outname ) free(lemp->outname);
lemp->outname = file_makename(lemp, suffix);
fp = fopen(lemp->outname,mode);
if( fp==0 && *mode=='w' ){
fprintf(stderr,"Can't open file \"%s\".\n",lemp->outname);
lemp->errorcnt++;
return 0;
}
return fp;
}
/* Duplicate the input file without comments and without actions
** on rules */
void Reprint(lemp)
struct lemon *lemp;
{
struct rule *rp;
struct symbol *sp;
int i, j, maxlen, len, ncolumns, skip;
printf("// Reprint of input file \"%s\".\n// Symbols:\n",lemp->filename);
maxlen = 10;
for(i=0; insymbol; i++){
sp = lemp->symbols[i];
len = lemonStrlen(sp->name);
if( len>maxlen ) maxlen = len;
}
ncolumns = 76/(maxlen+5);
if( ncolumns<1 ) ncolumns = 1;
skip = (lemp->nsymbol + ncolumns - 1)/ncolumns;
for(i=0; insymbol; j+=skip){
sp = lemp->symbols[j];
assert( sp->index==j );
printf(" %3d %-*.*s",j,maxlen,maxlen,sp->name);
}
printf("\n");
}
for(rp=lemp->rule; rp; rp=rp->next){
printf("%s",rp->lhs->name);
/* if( rp->lhsalias ) printf("(%s)",rp->lhsalias); */
printf(" ::=");
for(i=0; inrhs; i++){
sp = rp->rhs[i];
printf(" %s", sp->name);
if( sp->type==MULTITERMINAL ){
for(j=1; jnsubsym; j++){
printf("|%s", sp->subsym[j]->name);
}
}
/* if( rp->rhsalias[i] ) printf("(%s)",rp->rhsalias[i]); */
}
printf(".");
if( rp->precsym ) printf(" [%s]",rp->precsym->name);
/* if( rp->code ) printf("\n %s",rp->code); */
printf("\n");
}
}
void ConfigPrint(fp,cfp)
FILE *fp;
struct config *cfp;
{
struct rule *rp;
struct symbol *sp;
int i, j;
rp = cfp->rp;
fprintf(fp,"%s ::=",rp->lhs->name);
for(i=0; i<=rp->nrhs; i++){
if( i==cfp->dot ) fprintf(fp," *");
if( i==rp->nrhs ) break;
sp = rp->rhs[i];
fprintf(fp," %s", sp->name);
if( sp->type==MULTITERMINAL ){
for(j=1; jnsubsym; j++){
fprintf(fp,"|%s",sp->subsym[j]->name);
}
}
}
}
/* #define TEST */
#if 0
/* Print a set */
PRIVATE void SetPrint(out,set,lemp)
FILE *out;
char *set;
struct lemon *lemp;
{
int i;
char *spacer;
spacer = "";
fprintf(out,"%12s[","");
for(i=0; interminal; i++){
if( SetFind(set,i) ){
fprintf(out,"%s%s",spacer,lemp->symbols[i]->name);
spacer = " ";
}
}
fprintf(out,"]\n");
}
/* Print a plink chain */
PRIVATE void PlinkPrint(out,plp,tag)
FILE *out;
struct plink *plp;
char *tag;
{
while( plp ){
fprintf(out,"%12s%s (state %2d) ","",tag,plp->cfp->stp->statenum);
ConfigPrint(out,plp->cfp);
fprintf(out,"\n");
plp = plp->next;
}
}
#endif
/* Print an action to the given file descriptor. Return FALSE if
** nothing was actually printed.
*/
int PrintAction(struct action *ap, FILE *fp, int indent){
int result = 1;
switch( ap->type ){
case SHIFT:
fprintf(fp,"%*s shift %d",indent,ap->sp->name,ap->x.stp->statenum);
break;
case REDUCE:
fprintf(fp,"%*s reduce %d",indent,ap->sp->name,ap->x.rp->index);
break;
case ACCEPT:
fprintf(fp,"%*s accept",indent,ap->sp->name);
break;
case ERROR:
fprintf(fp,"%*s error",indent,ap->sp->name);
break;
case SRCONFLICT:
case RRCONFLICT:
fprintf(fp,"%*s reduce %-3d ** Parsing conflict **",
indent,ap->sp->name,ap->x.rp->index);
break;
case SSCONFLICT:
fprintf(fp,"%*s shift %d ** Parsing conflict **",
indent,ap->sp->name,ap->x.stp->statenum);
break;
case SH_RESOLVED:
case RD_RESOLVED:
case NOT_USED:
result = 0;
break;
}
return result;
}
/* Generate the "y.output" log file */
void ReportOutput(lemp)
struct lemon *lemp;
{
int i;
struct state *stp;
struct config *cfp;
struct action *ap;
FILE *fp;
fp = file_open(lemp,".out","wb");
if( fp==0 ) return;
for(i=0; instate; i++){
stp = lemp->sorted[i];
fprintf(fp,"State %d:\n",stp->statenum);
if( lemp->basisflag ) cfp=stp->bp;
else cfp=stp->cfp;
while( cfp ){
char buf[20];
if( cfp->dot==cfp->rp->nrhs ){
sprintf(buf,"(%d)",cfp->rp->index);
fprintf(fp," %5s ",buf);
}else{
fprintf(fp," ");
}
ConfigPrint(fp,cfp);
fprintf(fp,"\n");
#if 0
SetPrint(fp,cfp->fws,lemp);
PlinkPrint(fp,cfp->fplp,"To ");
PlinkPrint(fp,cfp->bplp,"From");
#endif
if( lemp->basisflag ) cfp=cfp->bp;
else cfp=cfp->next;
}
fprintf(fp,"\n");
for(ap=stp->ap; ap; ap=ap->next){
if( PrintAction(ap,fp,30) ) fprintf(fp,"\n");
}
fprintf(fp,"\n");
}
fprintf(fp, "----------------------------------------------------\n");
fprintf(fp, "Symbols:\n");
for(i=0; insymbol; i++){
int j;
struct symbol *sp;
sp = lemp->symbols[i];
fprintf(fp, " %3d: %s", i, sp->name);
if( sp->type==NONTERMINAL ){
fprintf(fp, ":");
if( sp->lambda ){
fprintf(fp, " ");
}
for(j=0; jnterminal; j++){
if( sp->firstset && SetFind(sp->firstset, j) ){
fprintf(fp, " %s", lemp->symbols[j]->name);
}
}
}
fprintf(fp, "\n");
}
fclose(fp);
return;
}
/* Search for the file "name" which is in the same directory as
** the exacutable */
PRIVATE char *pathsearch(argv0,name,modemask)
char *argv0;
char *name;
int modemask;
{
char *pathlist;
char *path,*cp;
char c;
#ifdef __WIN32__
cp = strrchr(argv0,'\\');
#else
cp = strrchr(argv0,'/');
#endif
if( cp ){
c = *cp;
*cp = 0;
path = (char *)malloc( lemonStrlen(argv0) + lemonStrlen(name) + 2 );
if( path ) sprintf(path,"%s/%s",argv0,name);
*cp = c;
}else{
extern char *getenv();
pathlist = getenv("PATH");
if( pathlist==0 ) pathlist = ".:/bin:/usr/bin";
path = (char *)malloc( lemonStrlen(pathlist)+lemonStrlen(name)+2 );
if( path!=0 ){
while( *pathlist ){
cp = strchr(pathlist,':');
if( cp==0 ) cp = &pathlist[lemonStrlen(pathlist)];
c = *cp;
*cp = 0;
sprintf(path,"%s/%s",pathlist,name);
*cp = c;
if( c==0 ) pathlist = "";
else pathlist = &cp[1];
if( access(path,modemask)==0 ) break;
}
}
}
return path;
}
/* Given an action, compute the integer value for that action
** which is to be put in the action table of the generated machine.
** Return negative if no action should be generated.
*/
PRIVATE int compute_action(lemp,ap)
struct lemon *lemp;
struct action *ap;
{
int act;
switch( ap->type ){
case SHIFT: act = ap->x.stp->statenum; break;
case REDUCE: act = ap->x.rp->index + lemp->nstate; break;
case ERROR: act = lemp->nstate + lemp->nrule; break;
case ACCEPT: act = lemp->nstate + lemp->nrule + 1; break;
default: act = -1; break;
}
return act;
}
#define LINESIZE 1000
/* The next cluster of routines are for reading the template file
** and writing the results to the generated parser */
/* The first function transfers data from "in" to "out" until
** a line is seen which begins with "%%". The line number is
** tracked.
**
** if name!=0, then any word that begin with "Parse" is changed to
** begin with *name instead.
*/
PRIVATE void tplt_xfer(name,in,out,lineno)
char *name;
FILE *in;
FILE *out;
int *lineno;
{
int i, iStart;
char line[LINESIZE];
while( fgets(line,LINESIZE,in) && (line[0]!='%' || line[1]!='%') ){
(*lineno)++;
iStart = 0;
if( name ){
for(i=0; line[i]; i++){
if( line[i]=='P' && strncmp(&line[i],"Parse",5)==0
&& (i==0 || !isalpha(line[i-1]))
){
if( i>iStart ) fprintf(out,"%.*s",i-iStart,&line[iStart]);
fprintf(out,"%s",name);
i += 4;
iStart = i+1;
}
}
}
fprintf(out,"%s",&line[iStart]);
}
}
/* The next function finds the template file and opens it, returning
** a pointer to the opened file. */
PRIVATE FILE *tplt_open(lemp)
struct lemon *lemp;
{
static char templatename[] = "lempar.c";
char buf[1000];
FILE *in;
char *tpltname;
char *cp;
cp = strrchr(lemp->filename,'.');
if( cp ){
sprintf(buf,"%.*s.lt",(int)(cp-lemp->filename),lemp->filename);
}else{
sprintf(buf,"%s.lt",lemp->filename);
}
if( access(buf,004)==0 ){
tpltname = buf;
}else if( access(templatename,004)==0 ){
tpltname = templatename;
}else{
tpltname = pathsearch(lemp->argv0,templatename,0);
}
if( tpltname==0 ){
fprintf(stderr,"Can't find the parser driver template file \"%s\".\n",
templatename);
lemp->errorcnt++;
return 0;
}
in = fopen(tpltname,"rb");
if( in==0 ){
fprintf(stderr,"Can't open the template file \"%s\".\n",templatename);
lemp->errorcnt++;
return 0;
}
return in;
}
/* Print a #line directive line to the output file. */
PRIVATE void tplt_linedir(out,lineno,filename)
FILE *out;
int lineno;
char *filename;
{
fprintf(out,"#line %d \"",lineno);
while( *filename ){
if( *filename == '\\' ) putc('\\',out);
putc(*filename,out);
filename++;
}
fprintf(out,"\"\n");
}
/* Print a string to the file and keep the linenumber up to date */
PRIVATE void tplt_print(out,lemp,str,lineno)
FILE *out;
struct lemon *lemp;
char *str;
int *lineno;
{
if( str==0 ) return;
while( *str ){
putc(*str,out);
if( *str=='\n' ) (*lineno)++;
str++;
}
if( str[-1]!='\n' ){
putc('\n',out);
(*lineno)++;
}
if (!lemp->nolinenosflag) {
(*lineno)++; tplt_linedir(out,*lineno,lemp->outname);
}
return;
}
/*
** The following routine emits code for the destructor for the
** symbol sp
*/
void emit_destructor_code(out,sp,lemp,lineno)
FILE *out;
struct symbol *sp;
struct lemon *lemp;
int *lineno;
{
char *cp = 0;
if( sp->type==TERMINAL ){
cp = lemp->tokendest;
if( cp==0 ) return;
fprintf(out,"{\n"); (*lineno)++;
}else if( sp->destructor ){
cp = sp->destructor;
fprintf(out,"{\n"); (*lineno)++;
if (!lemp->nolinenosflag) { (*lineno)++; tplt_linedir(out,sp->destLineno,lemp->filename); }
}else if( lemp->vardest ){
cp = lemp->vardest;
if( cp==0 ) return;
fprintf(out,"{\n"); (*lineno)++;
}else{
assert( 0 ); /* Cannot happen */
}
for(; *cp; cp++){
if( *cp=='$' && cp[1]=='$' ){
fprintf(out,"(yypminor->yy%d)",sp->dtnum);
cp++;
continue;
}
if( *cp=='\n' ) (*lineno)++;
fputc(*cp,out);
}
fprintf(out,"\n"); (*lineno)++;
if (!lemp->nolinenosflag) {
(*lineno)++; tplt_linedir(out,*lineno,lemp->outname);
}
fprintf(out,"}\n"); (*lineno)++;
return;
}
/*
** Return TRUE (non-zero) if the given symbol has a destructor.
*/
int has_destructor(sp, lemp)
struct symbol *sp;
struct lemon *lemp;
{
int ret;
if( sp->type==TERMINAL ){
ret = lemp->tokendest!=0;
}else{
ret = lemp->vardest!=0 || sp->destructor!=0;
}
return ret;
}
/*
** Append text to a dynamically allocated string. If zText is 0 then
** reset the string to be empty again. Always return the complete text
** of the string (which is overwritten with each call).
**
** n bytes of zText are stored. If n==0 then all of zText up to the first
** \000 terminator is stored. zText can contain up to two instances of
** %d. The values of p1 and p2 are written into the first and second
** %d.
**
** If n==-1, then the previous character is overwritten.
*/
PRIVATE char *append_str(char *zText, int n, int p1, int p2){
static char *z = 0;
static int alloced = 0;
static int used = 0;
int c;
char zInt[40];
if( zText==0 ){
used = 0;
return z;
}
if( n<=0 ){
if( n<0 ){
used += n;
assert( used>=0 );
}
n = lemonStrlen(zText);
}
if( n+sizeof(zInt)*2+used >= alloced ){
alloced = n + sizeof(zInt)*2 + used + 200;
z = realloc(z, alloced);
}
if( z==0 ) return "";
while( n-- > 0 ){
c = *(zText++);
if( c=='%' && n>0 && zText[0]=='d' ){
sprintf(zInt, "%d", p1);
p1 = p2;
strcpy(&z[used], zInt);
used += lemonStrlen(&z[used]);
zText++;
n--;
}else{
z[used++] = c;
}
}
z[used] = 0;
return z;
}
/*
** zCode is a string that is the action associated with a rule. Expand
** the symbols in this string so that the refer to elements of the parser
** stack.
*/
PRIVATE void translate_code(struct lemon *lemp, struct rule *rp){
char *cp, *xp;
int i;
char lhsused = 0; /* True if the LHS element has been used */
char used[MAXRHS]; /* True for each RHS element which is used */
for(i=0; inrhs; i++) used[i] = 0;
lhsused = 0;
if( rp->code==0 ){
rp->code = "\n";
rp->line = rp->ruleline;
}
append_str(0,0,0,0);
for(cp=rp->code; *cp; cp++){
if( isalpha(*cp) && (cp==rp->code || (!isalnum(cp[-1]) && cp[-1]!='_')) ){
char saved;
for(xp= &cp[1]; isalnum(*xp) || *xp=='_'; xp++);
saved = *xp;
*xp = 0;
if( rp->lhsalias && strcmp(cp,rp->lhsalias)==0 ){
append_str("yygotominor.yy%d",0,rp->lhs->dtnum,0);
cp = xp;
lhsused = 1;
}else{
for(i=0; inrhs; i++){
if( rp->rhsalias[i] && strcmp(cp,rp->rhsalias[i])==0 ){
if( cp!=rp->code && cp[-1]=='@' ){
/* If the argument is of the form @X then substituted
** the token number of X, not the value of X */
append_str("yymsp[%d].major",-1,i-rp->nrhs+1,0);
}else{
struct symbol *sp = rp->rhs[i];
int dtnum;
if( sp->type==MULTITERMINAL ){
dtnum = sp->subsym[0]->dtnum;
}else{
dtnum = sp->dtnum;
}
append_str("yymsp[%d].minor.yy%d",0,i-rp->nrhs+1, dtnum);
}
cp = xp;
used[i] = 1;
break;
}
}
}
*xp = saved;
}
append_str(cp, 1, 0, 0);
} /* End loop */
/* Check to make sure the LHS has been used */
if( rp->lhsalias && !lhsused ){
ErrorMsg(lemp->filename,rp->ruleline,
"Label \"%s\" for \"%s(%s)\" is never used.",
rp->lhsalias,rp->lhs->name,rp->lhsalias);
lemp->errorcnt++;
}
/* Generate destructor code for RHS symbols which are not used in the
** reduce code */
for(i=0; inrhs; i++){
if( rp->rhsalias[i] && !used[i] ){
ErrorMsg(lemp->filename,rp->ruleline,
"Label %s for \"%s(%s)\" is never used.",
rp->rhsalias[i],rp->rhs[i]->name,rp->rhsalias[i]);
lemp->errorcnt++;
}else if( rp->rhsalias[i]==0 ){
if( has_destructor(rp->rhs[i],lemp) ){
append_str(" yy_destructor(yypParser,%d,&yymsp[%d].minor);\n", 0,
rp->rhs[i]->index,i-rp->nrhs+1);
}else{
/* No destructor defined for this term */
}
}
}
if( rp->code ){
cp = append_str(0,0,0,0);
rp->code = Strsafe(cp?cp:"");
}
}
/*
** Generate code which executes when the rule "rp" is reduced. Write
** the code to "out". Make sure lineno stays up-to-date.
*/
PRIVATE void emit_code(out,rp,lemp,lineno)
FILE *out;
struct rule *rp;
struct lemon *lemp;
int *lineno;
{
char *cp;
/* Generate code to do the reduce action */
if( rp->code ){
if (!lemp->nolinenosflag) { (*lineno)++; tplt_linedir(out,rp->line,lemp->filename); }
fprintf(out,"{%s",rp->code);
for(cp=rp->code; *cp; cp++){
if( *cp=='\n' ) (*lineno)++;
} /* End loop */
fprintf(out,"}\n"); (*lineno)++;
if (!lemp->nolinenosflag) { (*lineno)++; tplt_linedir(out,*lineno,lemp->outname); }
} /* End if( rp->code ) */
return;
}
/*
** Print the definition of the union used for the parser's data stack.
** This union contains fields for every possible data type for tokens
** and nonterminals. In the process of computing and printing this
** union, also set the ".dtnum" field of every terminal and nonterminal
** symbol.
*/
void print_stack_union(out,lemp,plineno,mhflag)
FILE *out; /* The output stream */
struct lemon *lemp; /* The main info structure for this parser */
int *plineno; /* Pointer to the line number */
int mhflag; /* True if generating makeheaders output */
{
int lineno = *plineno; /* The line number of the output */
char **types; /* A hash table of datatypes */
int arraysize; /* Size of the "types" array */
int maxdtlength; /* Maximum length of any ".datatype" field. */
char *stddt; /* Standardized name for a datatype */
int i,j; /* Loop counters */
int hash; /* For hashing the name of a type */
char *name; /* Name of the parser */
/* Allocate and initialize types[] and allocate stddt[] */
arraysize = lemp->nsymbol * 2;
types = (char**)calloc( arraysize, sizeof(char*) );
for(i=0; ivartype ){
maxdtlength = lemonStrlen(lemp->vartype);
}
for(i=0; insymbol; i++){
int len;
struct symbol *sp = lemp->symbols[i];
if( sp->datatype==0 ) continue;
len = lemonStrlen(sp->datatype);
if( len>maxdtlength ) maxdtlength = len;
}
stddt = (char*)malloc( maxdtlength*2 + 1 );
if( types==0 || stddt==0 ){
fprintf(stderr,"Out of memory.\n");
exit(1);
}
/* Build a hash table of datatypes. The ".dtnum" field of each symbol
** is filled in with the hash index plus 1. A ".dtnum" value of 0 is
** used for terminal symbols. If there is no %default_type defined then
** 0 is also used as the .dtnum value for nonterminals which do not specify
** a datatype using the %type directive.
*/
for(i=0; insymbol; i++){
struct symbol *sp = lemp->symbols[i];
char *cp;
if( sp==lemp->errsym ){
sp->dtnum = arraysize+1;
continue;
}
if( sp->type!=NONTERMINAL || (sp->datatype==0 && lemp->vartype==0) ){
sp->dtnum = 0;
continue;
}
cp = sp->datatype;
if( cp==0 ) cp = lemp->vartype;
j = 0;
while( isspace(*cp) ) cp++;
while( *cp ) stddt[j++] = *cp++;
while( j>0 && isspace(stddt[j-1]) ) j--;
stddt[j] = 0;
if( lemp->tokentype && strcmp(stddt, lemp->tokentype)==0 ){
sp->dtnum = 0;
continue;
}
hash = 0;
for(j=0; stddt[j]; j++){
hash = hash*53 + stddt[j];
}
hash = (hash & 0x7fffffff)%arraysize;
while( types[hash] ){
if( strcmp(types[hash],stddt)==0 ){
sp->dtnum = hash + 1;
break;
}
hash++;
if( hash>=arraysize ) hash = 0;
}
if( types[hash]==0 ){
sp->dtnum = hash + 1;
types[hash] = (char*)malloc( lemonStrlen(stddt)+1 );
if( types[hash]==0 ){
fprintf(stderr,"Out of memory.\n");
exit(1);
}
strcpy(types[hash],stddt);
}
}
/* Print out the definition of YYTOKENTYPE and YYMINORTYPE */
name = lemp->name ? lemp->name : "Parse";
lineno = *plineno;
if( mhflag ){ fprintf(out,"#if INTERFACE\n"); lineno++; }
fprintf(out,"#define %sTOKENTYPE %s\n",name,
lemp->tokentype?lemp->tokentype:"void*"); lineno++;
if( mhflag ){ fprintf(out,"#endif\n"); lineno++; }
fprintf(out,"typedef union {\n"); lineno++;
fprintf(out," int yyinit;\n"); lineno++;
fprintf(out," %sTOKENTYPE yy0;\n",name); lineno++;
for(i=0; ierrsym->useCnt ){
fprintf(out," int yy%d;\n",lemp->errsym->dtnum); lineno++;
}
free(stddt);
free(types);
fprintf(out,"} YYMINORTYPE;\n"); lineno++;
*plineno = lineno;
}
/*
** Return the name of a C datatype able to represent values between
** lwr and upr, inclusive.
*/
static const char *minimum_size_type(int lwr, int upr){
if( lwr>=0 ){
if( upr<=255 ){
return "unsigned char";
}else if( upr<65535 ){
return "unsigned short int";
}else{
return "unsigned int";
}
}else if( lwr>=-127 && upr<=127 ){
return "signed char";
}else if( lwr>=-32767 && upr<32767 ){
return "short";
}else{
return "int";
}
}
/*
** Each state contains a set of token transaction and a set of
** nonterminal transactions. Each of these sets makes an instance
** of the following structure. An array of these structures is used
** to order the creation of entries in the yy_action[] table.
*/
struct axset {
struct state *stp; /* A pointer to a state */
int isTkn; /* True to use tokens. False for non-terminals */
int nAction; /* Number of actions */
};
/*
** Compare to axset structures for sorting purposes
*/
static int axset_compare(const void *a, const void *b){
struct axset *p1 = (struct axset*)a;
struct axset *p2 = (struct axset*)b;
return p2->nAction - p1->nAction;
}
/*
** Write text on "out" that describes the rule "rp".
*/
static void writeRuleText(FILE *out, struct rule *rp){
int j;
fprintf(out,"%s ::=", rp->lhs->name);
for(j=0; jnrhs; j++){
struct symbol *sp = rp->rhs[j];
fprintf(out," %s", sp->name);
if( sp->type==MULTITERMINAL ){
int k;
for(k=1; knsubsym; k++){
fprintf(out,"|%s",sp->subsym[k]->name);
}
}
}
}
/* Generate C source code for the parser */
void ReportTable(lemp, mhflag)
struct lemon *lemp;
int mhflag; /* Output in makeheaders format if true */
{
FILE *out, *in;
char line[LINESIZE];
int lineno;
struct state *stp;
struct action *ap;
struct rule *rp;
struct acttab *pActtab;
int i, j, n;
char *name;
int mnTknOfst, mxTknOfst;
int mnNtOfst, mxNtOfst;
struct axset *ax;
in = tplt_open(lemp);
if( in==0 ) return;
out = file_open(lemp,".c","wb");
if( out==0 ){
fclose(in);
return;
}
lineno = 1;
tplt_xfer(lemp->name,in,out,&lineno);
/* Generate the include code, if any */
tplt_print(out,lemp,lemp->include,&lineno);
if( mhflag ){
char *name = file_makename(lemp, ".h");
fprintf(out,"#include \"%s\"\n", name); lineno++;
free(name);
}
tplt_xfer(lemp->name,in,out,&lineno);
/* Generate #defines for all tokens */
if( mhflag ){
char *prefix;
fprintf(out,"#if INTERFACE\n"); lineno++;
if( lemp->tokenprefix ) prefix = lemp->tokenprefix;
else prefix = "";
for(i=1; interminal; i++){
fprintf(out,"#define %s%-30s %2d\n",prefix,lemp->symbols[i]->name,i);
lineno++;
}
fprintf(out,"#endif\n"); lineno++;
}
tplt_xfer(lemp->name,in,out,&lineno);
/* Generate the defines */
fprintf(out,"#define YYCODETYPE %s\n",
minimum_size_type(0, lemp->nsymbol+1)); lineno++;
fprintf(out,"#define YYNOCODE %d\n",lemp->nsymbol+1); lineno++;
fprintf(out,"#define YYACTIONTYPE %s\n",
minimum_size_type(0, lemp->nstate+lemp->nrule+5)); lineno++;
if( lemp->wildcard ){
fprintf(out,"#define YYWILDCARD %d\n",
lemp->wildcard->index); lineno++;
}
print_stack_union(out,lemp,&lineno,mhflag);
fprintf(out, "#ifndef YYSTACKDEPTH\n"); lineno++;
if( lemp->stacksize ){
fprintf(out,"#define YYSTACKDEPTH %s\n",lemp->stacksize); lineno++;
}else{
fprintf(out,"#define YYSTACKDEPTH 100\n"); lineno++;
}
fprintf(out, "#endif\n"); lineno++;
if( mhflag ){
fprintf(out,"#if INTERFACE\n"); lineno++;
}
name = lemp->name ? lemp->name : "Parse";
if( lemp->arg && lemp->arg[0] ){
int i;
i = lemonStrlen(lemp->arg);
while( i>=1 && isspace(lemp->arg[i-1]) ) i--;
while( i>=1 && (isalnum(lemp->arg[i-1]) || lemp->arg[i-1]=='_') ) i--;
fprintf(out,"#define %sARG_SDECL %s;\n",name,lemp->arg); lineno++;
fprintf(out,"#define %sARG_PDECL ,%s\n",name,lemp->arg); lineno++;
fprintf(out,"#define %sARG_FETCH %s = yypParser->%s\n",
name,lemp->arg,&lemp->arg[i]); lineno++;
fprintf(out,"#define %sARG_STORE yypParser->%s = %s\n",
name,&lemp->arg[i],&lemp->arg[i]); lineno++;
}else{
fprintf(out,"#define %sARG_SDECL\n",name); lineno++;
fprintf(out,"#define %sARG_PDECL\n",name); lineno++;
fprintf(out,"#define %sARG_FETCH\n",name); lineno++;
fprintf(out,"#define %sARG_STORE\n",name); lineno++;
}
if( mhflag ){
fprintf(out,"#endif\n"); lineno++;
}
fprintf(out,"#define YYNSTATE %d\n",lemp->nstate); lineno++;
fprintf(out,"#define YYNRULE %d\n",lemp->nrule); lineno++;
if( lemp->errsym->useCnt ){
fprintf(out,"#define YYERRORSYMBOL %d\n",lemp->errsym->index); lineno++;
fprintf(out,"#define YYERRSYMDT yy%d\n",lemp->errsym->dtnum); lineno++;
}
if( lemp->has_fallback ){
fprintf(out,"#define YYFALLBACK 1\n"); lineno++;
}
tplt_xfer(lemp->name,in,out,&lineno);
/* Generate the action table and its associates:
**
** yy_action[] A single table containing all actions.
** yy_lookahead[] A table containing the lookahead for each entry in
** yy_action. Used to detect hash collisions.
** yy_shift_ofst[] For each state, the offset into yy_action for
** shifting terminals.
** yy_reduce_ofst[] For each state, the offset into yy_action for
** shifting non-terminals after a reduce.
** yy_default[] Default action for each state.
*/
/* Compute the actions on all states and count them up */
ax = calloc(lemp->nstate*2, sizeof(ax[0]));
if( ax==0 ){
fprintf(stderr,"malloc failed\n");
exit(1);
}
for(i=0; instate; i++){
stp = lemp->sorted[i];
ax[i*2].stp = stp;
ax[i*2].isTkn = 1;
ax[i*2].nAction = stp->nTknAct;
ax[i*2+1].stp = stp;
ax[i*2+1].isTkn = 0;
ax[i*2+1].nAction = stp->nNtAct;
}
mxTknOfst = mnTknOfst = 0;
mxNtOfst = mnNtOfst = 0;
/* Compute the action table. In order to try to keep the size of the
** action table to a minimum, the heuristic of placing the largest action
** sets first is used.
*/
qsort(ax, lemp->nstate*2, sizeof(ax[0]), axset_compare);
pActtab = acttab_alloc();
for(i=0; instate*2 && ax[i].nAction>0; i++){
stp = ax[i].stp;
if( ax[i].isTkn ){
for(ap=stp->ap; ap; ap=ap->next){
int action;
if( ap->sp->index>=lemp->nterminal ) continue;
action = compute_action(lemp, ap);
if( action<0 ) continue;
acttab_action(pActtab, ap->sp->index, action);
}
stp->iTknOfst = acttab_insert(pActtab);
if( stp->iTknOfstiTknOfst;
if( stp->iTknOfst>mxTknOfst ) mxTknOfst = stp->iTknOfst;
}else{
for(ap=stp->ap; ap; ap=ap->next){
int action;
if( ap->sp->indexnterminal ) continue;
if( ap->sp->index==lemp->nsymbol ) continue;
action = compute_action(lemp, ap);
if( action<0 ) continue;
acttab_action(pActtab, ap->sp->index, action);
}
stp->iNtOfst = acttab_insert(pActtab);
if( stp->iNtOfstiNtOfst;
if( stp->iNtOfst>mxNtOfst ) mxNtOfst = stp->iNtOfst;
}
}
free(ax);
/* Output the yy_action table */
fprintf(out,"static const YYACTIONTYPE yy_action[] = {\n"); lineno++;
n = acttab_size(pActtab);
for(i=j=0; instate + lemp->nrule + 2;
if( j==0 ) fprintf(out," /* %5d */ ", i);
fprintf(out, " %4d,", action);
if( j==9 || i==n-1 ){
fprintf(out, "\n"); lineno++;
j = 0;
}else{
j++;
}
}
fprintf(out, "};\n"); lineno++;
/* Output the yy_lookahead table */
fprintf(out,"static const YYCODETYPE yy_lookahead[] = {\n"); lineno++;
for(i=j=0; insymbol;
if( j==0 ) fprintf(out," /* %5d */ ", i);
fprintf(out, " %4d,", la);
if( j==9 || i==n-1 ){
fprintf(out, "\n"); lineno++;
j = 0;
}else{
j++;
}
}
fprintf(out, "};\n"); lineno++;
/* Output the yy_shift_ofst[] table */
fprintf(out, "#define YY_SHIFT_USE_DFLT (%d)\n", mnTknOfst-1); lineno++;
n = lemp->nstate;
while( n>0 && lemp->sorted[n-1]->iTknOfst==NO_OFFSET ) n--;
fprintf(out, "#define YY_SHIFT_MAX %d\n", n-1); lineno++;
fprintf(out, "static const %s yy_shift_ofst[] = {\n",
minimum_size_type(mnTknOfst-1, mxTknOfst)); lineno++;
for(i=j=0; isorted[i];
ofst = stp->iTknOfst;
if( ofst==NO_OFFSET ) ofst = mnTknOfst - 1;
if( j==0 ) fprintf(out," /* %5d */ ", i);
fprintf(out, " %4d,", ofst);
if( j==9 || i==n-1 ){
fprintf(out, "\n"); lineno++;
j = 0;
}else{
j++;
}
}
fprintf(out, "};\n"); lineno++;
/* Output the yy_reduce_ofst[] table */
fprintf(out, "#define YY_REDUCE_USE_DFLT (%d)\n", mnNtOfst-1); lineno++;
n = lemp->nstate;
while( n>0 && lemp->sorted[n-1]->iNtOfst==NO_OFFSET ) n--;
fprintf(out, "#define YY_REDUCE_MAX %d\n", n-1); lineno++;
fprintf(out, "static const %s yy_reduce_ofst[] = {\n",
minimum_size_type(mnNtOfst-1, mxNtOfst)); lineno++;
for(i=j=0; isorted[i];
ofst = stp->iNtOfst;
if( ofst==NO_OFFSET ) ofst = mnNtOfst - 1;
if( j==0 ) fprintf(out," /* %5d */ ", i);
fprintf(out, " %4d,", ofst);
if( j==9 || i==n-1 ){
fprintf(out, "\n"); lineno++;
j = 0;
}else{
j++;
}
}
fprintf(out, "};\n"); lineno++;
/* Output the default action table */
fprintf(out, "static const YYACTIONTYPE yy_default[] = {\n"); lineno++;
n = lemp->nstate;
for(i=j=0; isorted[i];
if( j==0 ) fprintf(out," /* %5d */ ", i);
fprintf(out, " %4d,", stp->iDflt);
if( j==9 || i==n-1 ){
fprintf(out, "\n"); lineno++;
j = 0;
}else{
j++;
}
}
fprintf(out, "};\n"); lineno++;
tplt_xfer(lemp->name,in,out,&lineno);
/* Generate the table of fallback tokens.
*/
if( lemp->has_fallback ){
int mx = lemp->nterminal - 1;
while( mx>0 && lemp->symbols[mx]->fallback==0 ){ mx--; }
for(i=0; i<=mx; i++){
struct symbol *p = lemp->symbols[i];
if( p->fallback==0 ){
fprintf(out, " 0, /* %10s => nothing */\n", p->name);
}else{
fprintf(out, " %3d, /* %10s => %s */\n", p->fallback->index,
p->name, p->fallback->name);
}
lineno++;
}
}
tplt_xfer(lemp->name, in, out, &lineno);
/* Generate a table containing the symbolic name of every symbol
*/
for(i=0; insymbol; i++){
sprintf(line,"\"%s\",",lemp->symbols[i]->name);
fprintf(out," %-15s",line);
if( (i&3)==3 ){ fprintf(out,"\n"); lineno++; }
}
if( (i&3)!=0 ){ fprintf(out,"\n"); lineno++; }
tplt_xfer(lemp->name,in,out,&lineno);
/* Generate a table containing a text string that describes every
** rule in the rule set of the grammar. This information is used
** when tracing REDUCE actions.
*/
for(i=0, rp=lemp->rule; rp; rp=rp->next, i++){
assert( rp->index==i );
fprintf(out," /* %3d */ \"", i);
writeRuleText(out, rp);
fprintf(out,"\",\n"); lineno++;
}
tplt_xfer(lemp->name,in,out,&lineno);
/* Generate code which executes every time a symbol is popped from
** the stack while processing errors or while destroying the parser.
** (In other words, generate the %destructor actions)
*/
if( lemp->tokendest ){
int once = 1;
for(i=0; insymbol; i++){
struct symbol *sp = lemp->symbols[i];
if( sp==0 || sp->type!=TERMINAL ) continue;
if( once ){
fprintf(out, " /* TERMINAL Destructor */\n"); lineno++;
once = 0;
}
fprintf(out," case %d: /* %s */\n", sp->index, sp->name); lineno++;
}
for(i=0; insymbol && lemp->symbols[i]->type!=TERMINAL; i++);
if( insymbol ){
emit_destructor_code(out,lemp->symbols[i],lemp,&lineno);
fprintf(out," break;\n"); lineno++;
}
}
if( lemp->vardest ){
struct symbol *dflt_sp = 0;
int once = 1;
for(i=0; insymbol; i++){
struct symbol *sp = lemp->symbols[i];
if( sp==0 || sp->type==TERMINAL ||
sp->index<=0 || sp->destructor!=0 ) continue;
if( once ){
fprintf(out, " /* Default NON-TERMINAL Destructor */\n"); lineno++;
once = 0;
}
fprintf(out," case %d: /* %s */\n", sp->index, sp->name); lineno++;
dflt_sp = sp;
}
if( dflt_sp!=0 ){
emit_destructor_code(out,dflt_sp,lemp,&lineno);
}
fprintf(out," break;\n"); lineno++;
}
for(i=0; insymbol; i++){
struct symbol *sp = lemp->symbols[i];
if( sp==0 || sp->type==TERMINAL || sp->destructor==0 ) continue;
fprintf(out," case %d: /* %s */\n", sp->index, sp->name); lineno++;
/* Combine duplicate destructors into a single case */
for(j=i+1; jnsymbol; j++){
struct symbol *sp2 = lemp->symbols[j];
if( sp2 && sp2->type!=TERMINAL && sp2->destructor
&& sp2->dtnum==sp->dtnum
&& strcmp(sp->destructor,sp2->destructor)==0 ){
fprintf(out," case %d: /* %s */\n",
sp2->index, sp2->name); lineno++;
sp2->destructor = 0;
}
}
emit_destructor_code(out,lemp->symbols[i],lemp,&lineno);
fprintf(out," break;\n"); lineno++;
}
tplt_xfer(lemp->name,in,out,&lineno);
/* Generate code which executes whenever the parser stack overflows */
tplt_print(out,lemp,lemp->overflow,&lineno);
tplt_xfer(lemp->name,in,out,&lineno);
/* Generate the table of rule information
**
** Note: This code depends on the fact that rules are number
** sequentually beginning with 0.
*/
for(rp=lemp->rule; rp; rp=rp->next){
fprintf(out," { %d, %d },\n",rp->lhs->index,rp->nrhs); lineno++;
}
tplt_xfer(lemp->name,in,out,&lineno);
/* Generate code which execution during each REDUCE action */
for(rp=lemp->rule; rp; rp=rp->next){
translate_code(lemp, rp);
}
/* First output rules other than the default: rule */
for(rp=lemp->rule; rp; rp=rp->next){
struct rule *rp2; /* Other rules with the same action */
if( rp->code==0 ) continue;
if( rp->code[0]=='\n' && rp->code[1]==0 ) continue; /* Will be default: */
fprintf(out," case %d: /* ", rp->index);
writeRuleText(out, rp);
fprintf(out, " */\n"); lineno++;
for(rp2=rp->next; rp2; rp2=rp2->next){
if( rp2->code==rp->code ){
fprintf(out," case %d: /* ", rp2->index);
writeRuleText(out, rp2);
fprintf(out," */ yytestcase(yyruleno==%d);\n", rp2->index); lineno++;
rp2->code = 0;
}
}
emit_code(out,rp,lemp,&lineno);
fprintf(out," break;\n"); lineno++;
rp->code = 0;
}
/* Finally, output the default: rule. We choose as the default: all
** empty actions. */
fprintf(out," default:\n"); lineno++;
for(rp=lemp->rule; rp; rp=rp->next){
if( rp->code==0 ) continue;
assert( rp->code[0]=='\n' && rp->code[1]==0 );
fprintf(out," /* (%d) ", rp->index);
writeRuleText(out, rp);
fprintf(out, " */ yytestcase(yyruleno==%d);\n", rp->index); lineno++;
}
fprintf(out," break;\n"); lineno++;
tplt_xfer(lemp->name,in,out,&lineno);
/* Generate code which executes if a parse fails */
tplt_print(out,lemp,lemp->failure,&lineno);
tplt_xfer(lemp->name,in,out,&lineno);
/* Generate code which executes when a syntax error occurs */
tplt_print(out,lemp,lemp->error,&lineno);
tplt_xfer(lemp->name,in,out,&lineno);
/* Generate code which executes when the parser accepts its input */
tplt_print(out,lemp,lemp->accept,&lineno);
tplt_xfer(lemp->name,in,out,&lineno);
/* Append any addition code the user desires */
tplt_print(out,lemp,lemp->extracode,&lineno);
fclose(in);
fclose(out);
return;
}
/* Generate a header file for the parser */
void ReportHeader(lemp)
struct lemon *lemp;
{
FILE *out, *in;
char *prefix;
char line[LINESIZE];
char pattern[LINESIZE];
int i;
if( lemp->tokenprefix ) prefix = lemp->tokenprefix;
else prefix = "";
in = file_open(lemp,".h","rb");
if( in ){
for(i=1; interminal && fgets(line,LINESIZE,in); i++){
sprintf(pattern,"#define %s%-30s %2d\n",prefix,lemp->symbols[i]->name,i);
if( strcmp(line,pattern) ) break;
}
fclose(in);
if( i==lemp->nterminal ){
/* No change in the file. Don't rewrite it. */
return;
}
}
out = file_open(lemp,".h","wb");
if( out ){
for(i=1; interminal; i++){
fprintf(out,"#define %s%-30s %2d\n",prefix,lemp->symbols[i]->name,i);
}
fclose(out);
}
return;
}
/* Reduce the size of the action tables, if possible, by making use
** of defaults.
**
** In this version, we take the most frequent REDUCE action and make
** it the default. Except, there is no default if the wildcard token
** is a possible look-ahead.
*/
void CompressTables(lemp)
struct lemon *lemp;
{
struct state *stp;
struct action *ap, *ap2;
struct rule *rp, *rp2, *rbest;
int nbest, n;
int i;
int usesWildcard;
for(i=0; instate; i++){
stp = lemp->sorted[i];
nbest = 0;
rbest = 0;
usesWildcard = 0;
for(ap=stp->ap; ap; ap=ap->next){
if( ap->type==SHIFT && ap->sp==lemp->wildcard ){
usesWildcard = 1;
}
if( ap->type!=REDUCE ) continue;
rp = ap->x.rp;
if( rp->lhsStart ) continue;
if( rp==rbest ) continue;
n = 1;
for(ap2=ap->next; ap2; ap2=ap2->next){
if( ap2->type!=REDUCE ) continue;
rp2 = ap2->x.rp;
if( rp2==rbest ) continue;
if( rp2==rp ) n++;
}
if( n>nbest ){
nbest = n;
rbest = rp;
}
}
/* Do not make a default if the number of rules to default
** is not at least 1 or if the wildcard token is a possible
** lookahead.
*/
if( nbest<1 || usesWildcard ) continue;
/* Combine matching REDUCE actions into a single default */
for(ap=stp->ap; ap; ap=ap->next){
if( ap->type==REDUCE && ap->x.rp==rbest ) break;
}
assert( ap );
ap->sp = Symbol_new("{default}");
for(ap=ap->next; ap; ap=ap->next){
if( ap->type==REDUCE && ap->x.rp==rbest ) ap->type = NOT_USED;
}
stp->ap = Action_sort(stp->ap);
}
}
/*
** Compare two states for sorting purposes. The smaller state is the
** one with the most non-terminal actions. If they have the same number
** of non-terminal actions, then the smaller is the one with the most
** token actions.
*/
static int stateResortCompare(const void *a, const void *b){
const struct state *pA = *(const struct state**)a;
const struct state *pB = *(const struct state**)b;
int n;
n = pB->nNtAct - pA->nNtAct;
if( n==0 ){
n = pB->nTknAct - pA->nTknAct;
}
return n;
}
/*
** Renumber and resort states so that states with fewer choices
** occur at the end. Except, keep state 0 as the first state.
*/
void ResortStates(lemp)
struct lemon *lemp;
{
int i;
struct state *stp;
struct action *ap;
for(i=0; instate; i++){
stp = lemp->sorted[i];
stp->nTknAct = stp->nNtAct = 0;
stp->iDflt = lemp->nstate + lemp->nrule;
stp->iTknOfst = NO_OFFSET;
stp->iNtOfst = NO_OFFSET;
for(ap=stp->ap; ap; ap=ap->next){
if( compute_action(lemp,ap)>=0 ){
if( ap->sp->indexnterminal ){
stp->nTknAct++;
}else if( ap->sp->indexnsymbol ){
stp->nNtAct++;
}else{
stp->iDflt = compute_action(lemp, ap);
}
}
}
}
qsort(&lemp->sorted[1], lemp->nstate-1, sizeof(lemp->sorted[0]),
stateResortCompare);
for(i=0; instate; i++){
lemp->sorted[i]->statenum = i;
}
}
/***************** From the file "set.c" ************************************/
/*
** Set manipulation routines for the LEMON parser generator.
*/
static int size = 0;
/* Set the set size */
void SetSize(n)
int n;
{
size = n+1;
}
/* Allocate a new set */
char *SetNew(){
char *s;
s = (char*)calloc( size, 1);
if( s==0 ){
extern void memory_error();
memory_error();
}
return s;
}
/* Deallocate a set */
void SetFree(s)
char *s;
{
free(s);
}
/* Add a new element to the set. Return TRUE if the element was added
** and FALSE if it was already there. */
int SetAdd(s,e)
char *s;
int e;
{
int rv;
assert( e>=0 && esize = 1024;
x1a->count = 0;
x1a->tbl = (x1node*)malloc(
(sizeof(x1node) + sizeof(x1node*))*1024 );
if( x1a->tbl==0 ){
free(x1a);
x1a = 0;
}else{
int i;
x1a->ht = (x1node**)&(x1a->tbl[1024]);
for(i=0; i<1024; i++) x1a->ht[i] = 0;
}
}
}
/* Insert a new record into the array. Return TRUE if successful.
** Prior data with the same key is NOT overwritten */
int Strsafe_insert(data)
char *data;
{
x1node *np;
int h;
int ph;
if( x1a==0 ) return 0;
ph = strhash(data);
h = ph & (x1a->size-1);
np = x1a->ht[h];
while( np ){
if( strcmp(np->data,data)==0 ){
/* An existing entry with the same key is found. */
/* Fail because overwrite is not allows. */
return 0;
}
np = np->next;
}
if( x1a->count>=x1a->size ){
/* Need to make the hash table bigger */
int i,size;
struct s_x1 array;
array.size = size = x1a->size*2;
array.count = x1a->count;
array.tbl = (x1node*)malloc(
(sizeof(x1node) + sizeof(x1node*))*size );
if( array.tbl==0 ) return 0; /* Fail due to malloc failure */
array.ht = (x1node**)&(array.tbl[size]);
for(i=0; icount; i++){
x1node *oldnp, *newnp;
oldnp = &(x1a->tbl[i]);
h = strhash(oldnp->data) & (size-1);
newnp = &(array.tbl[i]);
if( array.ht[h] ) array.ht[h]->from = &(newnp->next);
newnp->next = array.ht[h];
newnp->data = oldnp->data;
newnp->from = &(array.ht[h]);
array.ht[h] = newnp;
}
free(x1a->tbl);
*x1a = array;
}
/* Insert the new data */
h = ph & (x1a->size-1);
np = &(x1a->tbl[x1a->count++]);
np->data = data;
if( x1a->ht[h] ) x1a->ht[h]->from = &(np->next);
np->next = x1a->ht[h];
x1a->ht[h] = np;
np->from = &(x1a->ht[h]);
return 1;
}
/* Return a pointer to data assigned to the given key. Return NULL
** if no such key. */
char *Strsafe_find(key)
char *key;
{
int h;
x1node *np;
if( x1a==0 ) return 0;
h = strhash(key) & (x1a->size-1);
np = x1a->ht[h];
while( np ){
if( strcmp(np->data,key)==0 ) break;
np = np->next;
}
return np ? np->data : 0;
}
/* Return a pointer to the (terminal or nonterminal) symbol "x".
** Create a new symbol if this is the first time "x" has been seen.
*/
struct symbol *Symbol_new(x)
char *x;
{
struct symbol *sp;
sp = Symbol_find(x);
if( sp==0 ){
sp = (struct symbol *)calloc(1, sizeof(struct symbol) );
MemoryCheck(sp);
sp->name = Strsafe(x);
sp->type = isupper(*x) ? TERMINAL : NONTERMINAL;
sp->rule = 0;
sp->fallback = 0;
sp->prec = -1;
sp->assoc = UNK;
sp->firstset = 0;
sp->lambda = LEMON_FALSE;
sp->destructor = 0;
sp->destLineno = 0;
sp->datatype = 0;
sp->useCnt = 0;
Symbol_insert(sp,sp->name);
}
sp->useCnt++;
return sp;
}
/* Compare two symbols for working purposes
**
** Symbols that begin with upper case letters (terminals or tokens)
** must sort before symbols that begin with lower case letters
** (non-terminals). Other than that, the order does not matter.
**
** We find experimentally that leaving the symbols in their original
** order (the order they appeared in the grammar file) gives the
** smallest parser tables in SQLite.
*/
int Symbolcmpp(struct symbol **a, struct symbol **b){
int i1 = (**a).index + 10000000*((**a).name[0]>'Z');
int i2 = (**b).index + 10000000*((**b).name[0]>'Z');
return i1-i2;
}
/* There is one instance of the following structure for each
** associative array of type "x2".
*/
struct s_x2 {
int size; /* The number of available slots. */
/* Must be a power of 2 greater than or */
/* equal to 1 */
int count; /* Number of currently slots filled */
struct s_x2node *tbl; /* The data stored here */
struct s_x2node **ht; /* Hash table for lookups */
};
/* There is one instance of this structure for every data element
** in an associative array of type "x2".
*/
typedef struct s_x2node {
struct symbol *data; /* The data */
char *key; /* The key */
struct s_x2node *next; /* Next entry with the same hash */
struct s_x2node **from; /* Previous link */
} x2node;
/* There is only one instance of the array, which is the following */
static struct s_x2 *x2a;
/* Allocate a new associative array */
void Symbol_init(){
if( x2a ) return;
x2a = (struct s_x2*)malloc( sizeof(struct s_x2) );
if( x2a ){
x2a->size = 128;
x2a->count = 0;
x2a->tbl = (x2node*)malloc(
(sizeof(x2node) + sizeof(x2node*))*128 );
if( x2a->tbl==0 ){
free(x2a);
x2a = 0;
}else{
int i;
x2a->ht = (x2node**)&(x2a->tbl[128]);
for(i=0; i<128; i++) x2a->ht[i] = 0;
}
}
}
/* Insert a new record into the array. Return TRUE if successful.
** Prior data with the same key is NOT overwritten */
int Symbol_insert(data,key)
struct symbol *data;
char *key;
{
x2node *np;
int h;
int ph;
if( x2a==0 ) return 0;
ph = strhash(key);
h = ph & (x2a->size-1);
np = x2a->ht[h];
while( np ){
if( strcmp(np->key,key)==0 ){
/* An existing entry with the same key is found. */
/* Fail because overwrite is not allows. */
return 0;
}
np = np->next;
}
if( x2a->count>=x2a->size ){
/* Need to make the hash table bigger */
int i,size;
struct s_x2 array;
array.size = size = x2a->size*2;
array.count = x2a->count;
array.tbl = (x2node*)malloc(
(sizeof(x2node) + sizeof(x2node*))*size );
if( array.tbl==0 ) return 0; /* Fail due to malloc failure */
array.ht = (x2node**)&(array.tbl[size]);
for(i=0; icount; i++){
x2node *oldnp, *newnp;
oldnp = &(x2a->tbl[i]);
h = strhash(oldnp->key) & (size-1);
newnp = &(array.tbl[i]);
if( array.ht[h] ) array.ht[h]->from = &(newnp->next);
newnp->next = array.ht[h];
newnp->key = oldnp->key;
newnp->data = oldnp->data;
newnp->from = &(array.ht[h]);
array.ht[h] = newnp;
}
free(x2a->tbl);
*x2a = array;
}
/* Insert the new data */
h = ph & (x2a->size-1);
np = &(x2a->tbl[x2a->count++]);
np->key = key;
np->data = data;
if( x2a->ht[h] ) x2a->ht[h]->from = &(np->next);
np->next = x2a->ht[h];
x2a->ht[h] = np;
np->from = &(x2a->ht[h]);
return 1;
}
/* Return a pointer to data assigned to the given key. Return NULL
** if no such key. */
struct symbol *Symbol_find(key)
char *key;
{
int h;
x2node *np;
if( x2a==0 ) return 0;
h = strhash(key) & (x2a->size-1);
np = x2a->ht[h];
while( np ){
if( strcmp(np->key,key)==0 ) break;
np = np->next;
}
return np ? np->data : 0;
}
/* Return the n-th data. Return NULL if n is out of range. */
struct symbol *Symbol_Nth(n)
int n;
{
struct symbol *data;
if( x2a && n>0 && n<=x2a->count ){
data = x2a->tbl[n-1].data;
}else{
data = 0;
}
return data;
}
/* Return the size of the array */
int Symbol_count()
{
return x2a ? x2a->count : 0;
}
/* Return an array of pointers to all data in the table.
** The array is obtained from malloc. Return NULL if memory allocation
** problems, or if the array is empty. */
struct symbol **Symbol_arrayof()
{
struct symbol **array;
int i,size;
if( x2a==0 ) return 0;
size = x2a->count;
array = (struct symbol **)calloc(size, sizeof(struct symbol *));
if( array ){
for(i=0; itbl[i].data;
}
return array;
}
/* Compare two configurations */
int Configcmp(a,b)
struct config *a;
struct config *b;
{
int x;
x = a->rp->index - b->rp->index;
if( x==0 ) x = a->dot - b->dot;
return x;
}
/* Compare two states */
PRIVATE int statecmp(a,b)
struct config *a;
struct config *b;
{
int rc;
for(rc=0; rc==0 && a && b; a=a->bp, b=b->bp){
rc = a->rp->index - b->rp->index;
if( rc==0 ) rc = a->dot - b->dot;
}
if( rc==0 ){
if( a ) rc = 1;
if( b ) rc = -1;
}
return rc;
}
/* Hash a state */
PRIVATE int statehash(a)
struct config *a;
{
int h=0;
while( a ){
h = h*571 + a->rp->index*37 + a->dot;
a = a->bp;
}
return h;
}
/* Allocate a new state structure */
struct state *State_new()
{
struct state *new;
new = (struct state *)calloc(1, sizeof(struct state) );
MemoryCheck(new);
return new;
}
/* There is one instance of the following structure for each
** associative array of type "x3".
*/
struct s_x3 {
int size; /* The number of available slots. */
/* Must be a power of 2 greater than or */
/* equal to 1 */
int count; /* Number of currently slots filled */
struct s_x3node *tbl; /* The data stored here */
struct s_x3node **ht; /* Hash table for lookups */
};
/* There is one instance of this structure for every data element
** in an associative array of type "x3".
*/
typedef struct s_x3node {
struct state *data; /* The data */
struct config *key; /* The key */
struct s_x3node *next; /* Next entry with the same hash */
struct s_x3node **from; /* Previous link */
} x3node;
/* There is only one instance of the array, which is the following */
static struct s_x3 *x3a;
/* Allocate a new associative array */
void State_init(){
if( x3a ) return;
x3a = (struct s_x3*)malloc( sizeof(struct s_x3) );
if( x3a ){
x3a->size = 128;
x3a->count = 0;
x3a->tbl = (x3node*)malloc(
(sizeof(x3node) + sizeof(x3node*))*128 );
if( x3a->tbl==0 ){
free(x3a);
x3a = 0;
}else{
int i;
x3a->ht = (x3node**)&(x3a->tbl[128]);
for(i=0; i<128; i++) x3a->ht[i] = 0;
}
}
}
/* Insert a new record into the array. Return TRUE if successful.
** Prior data with the same key is NOT overwritten */
int State_insert(data,key)
struct state *data;
struct config *key;
{
x3node *np;
int h;
int ph;
if( x3a==0 ) return 0;
ph = statehash(key);
h = ph & (x3a->size-1);
np = x3a->ht[h];
while( np ){
if( statecmp(np->key,key)==0 ){
/* An existing entry with the same key is found. */
/* Fail because overwrite is not allows. */
return 0;
}
np = np->next;
}
if( x3a->count>=x3a->size ){
/* Need to make the hash table bigger */
int i,size;
struct s_x3 array;
array.size = size = x3a->size*2;
array.count = x3a->count;
array.tbl = (x3node*)malloc(
(sizeof(x3node) + sizeof(x3node*))*size );
if( array.tbl==0 ) return 0; /* Fail due to malloc failure */
array.ht = (x3node**)&(array.tbl[size]);
for(i=0; icount; i++){
x3node *oldnp, *newnp;
oldnp = &(x3a->tbl[i]);
h = statehash(oldnp->key) & (size-1);
newnp = &(array.tbl[i]);
if( array.ht[h] ) array.ht[h]->from = &(newnp->next);
newnp->next = array.ht[h];
newnp->key = oldnp->key;
newnp->data = oldnp->data;
newnp->from = &(array.ht[h]);
array.ht[h] = newnp;
}
free(x3a->tbl);
*x3a = array;
}
/* Insert the new data */
h = ph & (x3a->size-1);
np = &(x3a->tbl[x3a->count++]);
np->key = key;
np->data = data;
if( x3a->ht[h] ) x3a->ht[h]->from = &(np->next);
np->next = x3a->ht[h];
x3a->ht[h] = np;
np->from = &(x3a->ht[h]);
return 1;
}
/* Return a pointer to data assigned to the given key. Return NULL
** if no such key. */
struct state *State_find(key)
struct config *key;
{
int h;
x3node *np;
if( x3a==0 ) return 0;
h = statehash(key) & (x3a->size-1);
np = x3a->ht[h];
while( np ){
if( statecmp(np->key,key)==0 ) break;
np = np->next;
}
return np ? np->data : 0;
}
/* Return an array of pointers to all data in the table.
** The array is obtained from malloc. Return NULL if memory allocation
** problems, or if the array is empty. */
struct state **State_arrayof()
{
struct state **array;
int i,size;
if( x3a==0 ) return 0;
size = x3a->count;
array = (struct state **)malloc( sizeof(struct state *)*size );
if( array ){
for(i=0; itbl[i].data;
}
return array;
}
/* Hash a configuration */
PRIVATE int confighash(a)
struct config *a;
{
int h=0;
h = h*571 + a->rp->index*37 + a->dot;
return h;
}
/* There is one instance of the following structure for each
** associative array of type "x4".
*/
struct s_x4 {
int size; /* The number of available slots. */
/* Must be a power of 2 greater than or */
/* equal to 1 */
int count; /* Number of currently slots filled */
struct s_x4node *tbl; /* The data stored here */
struct s_x4node **ht; /* Hash table for lookups */
};
/* There is one instance of this structure for every data element
** in an associative array of type "x4".
*/
typedef struct s_x4node {
struct config *data; /* The data */
struct s_x4node *next; /* Next entry with the same hash */
struct s_x4node **from; /* Previous link */
} x4node;
/* There is only one instance of the array, which is the following */
static struct s_x4 *x4a;
/* Allocate a new associative array */
void Configtable_init(){
if( x4a ) return;
x4a = (struct s_x4*)malloc( sizeof(struct s_x4) );
if( x4a ){
x4a->size = 64;
x4a->count = 0;
x4a->tbl = (x4node*)malloc(
(sizeof(x4node) + sizeof(x4node*))*64 );
if( x4a->tbl==0 ){
free(x4a);
x4a = 0;
}else{
int i;
x4a->ht = (x4node**)&(x4a->tbl[64]);
for(i=0; i<64; i++) x4a->ht[i] = 0;
}
}
}
/* Insert a new record into the array. Return TRUE if successful.
** Prior data with the same key is NOT overwritten */
int Configtable_insert(data)
struct config *data;
{
x4node *np;
int h;
int ph;
if( x4a==0 ) return 0;
ph = confighash(data);
h = ph & (x4a->size-1);
np = x4a->ht[h];
while( np ){
if( Configcmp(np->data,data)==0 ){
/* An existing entry with the same key is found. */
/* Fail because overwrite is not allows. */
return 0;
}
np = np->next;
}
if( x4a->count>=x4a->size ){
/* Need to make the hash table bigger */
int i,size;
struct s_x4 array;
array.size = size = x4a->size*2;
array.count = x4a->count;
array.tbl = (x4node*)malloc(
(sizeof(x4node) + sizeof(x4node*))*size );
if( array.tbl==0 ) return 0; /* Fail due to malloc failure */
array.ht = (x4node**)&(array.tbl[size]);
for(i=0; icount; i++){
x4node *oldnp, *newnp;
oldnp = &(x4a->tbl[i]);
h = confighash(oldnp->data) & (size-1);
newnp = &(array.tbl[i]);
if( array.ht[h] ) array.ht[h]->from = &(newnp->next);
newnp->next = array.ht[h];
newnp->data = oldnp->data;
newnp->from = &(array.ht[h]);
array.ht[h] = newnp;
}
free(x4a->tbl);
*x4a = array;
}
/* Insert the new data */
h = ph & (x4a->size-1);
np = &(x4a->tbl[x4a->count++]);
np->data = data;
if( x4a->ht[h] ) x4a->ht[h]->from = &(np->next);
np->next = x4a->ht[h];
x4a->ht[h] = np;
np->from = &(x4a->ht[h]);
return 1;
}
/* Return a pointer to data assigned to the given key. Return NULL
** if no such key. */
struct config *Configtable_find(key)
struct config *key;
{
int h;
x4node *np;
if( x4a==0 ) return 0;
h = confighash(key) & (x4a->size-1);
np = x4a->ht[h];
while( np ){
if( Configcmp(np->data,key)==0 ) break;
np = np->next;
}
return np ? np->data : 0;
}
/* Remove all data from the table. Pass each data to the function "f"
** as it is removed. ("f" may be null to avoid this step.) */
void Configtable_clear(f)
int(*f)(/* struct config * */);
{
int i;
if( x4a==0 || x4a->count==0 ) return;
if( f ) for(i=0; icount; i++) (*f)(x4a->tbl[i].data);
for(i=0; isize; i++) x4a->ht[i] = 0;
x4a->count = 0;
return;
}
aspcud-1.8.0-source/libprogram_opts/ 0000755 0004047 0000764 00000000000 12263736732 017230 5 ustar kaminski cools aspcud-1.8.0-source/libprogram_opts/CMakeLists.txt 0000644 0004047 0000764 00000000404 11537433306 021760 0 ustar kaminski cools file(GLOB_RECURSE LIBPROGRAM_OPTS_SRC src/*.cpp *.h)
include_directories(src .)
add_library(program_opts-lib STATIC ${LIBPROGRAM_OPTS_SRC})
target_link_libraries(program_opts-lib)
set_target_properties(program_opts-lib PROPERTIES OUTPUT_NAME program_opts)
aspcud-1.8.0-source/libprogram_opts/program_opts/ 0000755 0004047 0000764 00000000000 12263736732 021744 5 ustar kaminski cools aspcud-1.8.0-source/libprogram_opts/program_opts/value_base.h 0000644 0004047 0000764 00000003752 11537443713 024227 0 ustar kaminski cools //
// Copyright (c) 2006-2007, Benjamin Kaufmann
//
// This file is part of aspcud.
//
// gringo is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// gringo is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with gringo. If not, see .
//
#ifndef PROGRAM_OPTIONS_VALUE_BASE_H_INCLUDED
#define PROGRAM_OPTIONS_VALUE_BASE_H_INCLUDED
#ifdef _MSC_VER
#pragma warning (disable : 4786)
#pragma warning (disable : 4503)
#endif
#include
namespace ProgramOptions {
//! base class for values of options
class ValueBase
{
protected:
ValueBase();
public:
virtual ~ValueBase() = 0;
//! returns true if the object already stores a value
virtual bool hasValue() const = 0;
//! returns true if the value of the option is implicit
/*!
* this property is only meaningful for command line options.
* An implicit option is a flag, i.e an option that does not
* expect an explicit value.
* Example: --help or --version
*/
virtual bool isImplicit() const = 0;
//! returns true if the value of this option can be composed from multiple source
virtual bool isComposing() const = 0;
//! returns true if the value currently holds its default value
virtual bool isDefaulted() const = 0;
//! sets the value's default value as value.
/*!
* \return true if the default value was set
*/
virtual bool applyDefault() = 0;
//! Parses the given string and stores the result in this value.
/*!
* \return
* - true if the given string contains a valid value
* - false otherwise
*/
virtual bool parse(const std::string&) = 0;
};
}
#endif
aspcud-1.8.0-source/libprogram_opts/program_opts/value.h 0000644 0004047 0000764 00000015622 11537443713 023234 0 ustar kaminski cools //
// Copyright (c) 2006-2007, Benjamin Kaufmann
//
// This file is part of aspcud.
//
// gringo is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// gringo is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with gringo. If not, see .
//
#ifndef PROGRAM_OPTIONS_VALUE_H_INCLUDED
#define PROGRAM_OPTIONS_VALUE_H_INCLUDED
#ifdef _MSC_VER
#pragma warning (disable : 4786)
#pragma warning (disable : 4503)
#endif
#include "program_options.h"
#include "value_base.h"
#include "errors.h"
#include
#include
#include
#include
#include
#include