readline-1.0.3.0/0000755000000000000000000000000012110133243011610 5ustar0000000000000000readline-1.0.3.0/config.mk.in0000644000000000000000000000044212110133243014013 0ustar0000000000000000READLINE_BUILD_PACKAGE=@READLINE_BUILD_PACKAGE@ ifneq "$(READLINE_BUILD_PACKAGE)" "no" READLINE_INCLUDE_DIRS=@READLINE_INCLUDE_DIRS@ READLINE_LIB_DIRS=@READLINE_LIB_DIRS@ READLINE_LIBS=@READLINE_LIBS@ PACKAGE=@PACKAGE_TARNAME@ VERSION=@PACKAGE_VERSION@ MAINTAINER=@PACKAGE_BUGREPORT@ endif readline-1.0.3.0/Setup.hs0000644000000000000000000000016112110133243013242 0ustar0000000000000000module Main (main) where import Distribution.Simple main :: IO () main = defaultMainWithHooks defaultUserHooks readline-1.0.3.0/HsReadline_cbits.c0000644000000000000000000000027112110133243015156 0ustar0000000000000000#include "HsReadline.h" void hs_rl_message (const char *s) { rl_message ("%s", s); } #if (__GLASGOW_HASKELL__>=706) int __hscore_hs_fileno (FILE *f) { return fileno (f); } #endif readline-1.0.3.0/LICENSE0000644000000000000000000004310512110133243012620 0ustar0000000000000000 GNU GENERAL PUBLIC LICENSE Version 2, June 1991 Copyright (C) 1989, 1991 Free Software Foundation, Inc. 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. Preamble The licenses for most software are designed to take away your freedom to share and change it. By contrast, the GNU General Public License is intended to guarantee your freedom to share and change free software--to make sure the software is free for all its users. This General Public License applies to most of the Free Software Foundation's software and to any other program whose authors commit to using it. (Some other Free Software Foundation software is covered by the GNU Library General Public License instead.) You can apply it to your programs, too. When we speak of free software, we are referring to freedom, not price. Our General Public Licenses are designed to make sure that you have the freedom to distribute copies of free software (and charge for this service if you wish), that you receive source code or can get it if you want it, that you can change the software or use pieces of it in new free programs; and that you know you can do these things. To protect your rights, we need to make restrictions that forbid anyone to deny you these rights or to ask you to surrender the rights. These restrictions translate to certain responsibilities for you if you distribute copies of the software, or if you modify it. For example, if you distribute copies of such a program, whether gratis or for a fee, you must give the recipients all the rights that you have. You must make sure that they, too, receive or can get the source code. And you must show them these terms so they know their rights. We protect your rights with two steps: (1) copyright the software, and (2) offer you this license which gives you legal permission to copy, distribute and/or modify the software. Also, for each author's protection and ours, we want to make certain that everyone understands that there is no warranty for this free software. If the software is modified by someone else and passed on, we want its recipients to know that what they have is not the original, so that any problems introduced by others will not reflect on the original authors' reputations. Finally, any free program is threatened constantly by software patents. We wish to avoid the danger that redistributors of a free program will individually obtain patent licenses, in effect making the program proprietary. To prevent this, we have made it clear that any patent must be licensed for everyone's free use or not licensed at all. The precise terms and conditions for copying, distribution and modification follow. GNU GENERAL PUBLIC LICENSE TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION 0. This License applies to any program or other work which contains a notice placed by the copyright holder saying it may be distributed under the terms of this General Public License. The "Program", below, refers to any such program or work, and a "work based on the Program" means either the Program or any derivative work under copyright law: that is to say, a work containing the Program or a portion of it, either verbatim or with modifications and/or translated into another language. (Hereinafter, translation is included without limitation in the term "modification".) Each licensee is addressed as "you". Activities other than copying, distribution and modification are not covered by this License; they are outside its scope. The act of running the Program is not restricted, and the output from the Program is covered only if its contents constitute a work based on the Program (independent of having been made by running the Program). Whether that is true depends on what the Program does. 1. You may copy and distribute verbatim copies of the Program's source code as you receive it, in any medium, provided that you conspicuously and appropriately publish on each copy an appropriate copyright notice and disclaimer of warranty; keep intact all the notices that refer to this License and to the absence of any warranty; and give any other recipients of the Program a copy of this License along with the Program. You may charge a fee for the physical act of transferring a copy, and you may at your option offer warranty protection in exchange for a fee. 2. You may modify your copy or copies of the Program or any portion of it, thus forming a work based on the Program, and copy and distribute such modifications or work under the terms of Section 1 above, provided that you also meet all of these conditions: a) You must cause the modified files to carry prominent notices stating that you changed the files and the date of any change. b) You must cause any work that you distribute or publish, that in whole or in part contains or is derived from the Program or any part thereof, to be licensed as a whole at no charge to all third parties under the terms of this License. c) If the modified program normally reads commands interactively when run, you must cause it, when started running for such interactive use in the most ordinary way, to print or display an announcement including an appropriate copyright notice and a notice that there is no warranty (or else, saying that you provide a warranty) and that users may redistribute the program under these conditions, and telling the user how to view a copy of this License. (Exception: if the Program itself is interactive but does not normally print such an announcement, your work based on the Program is not required to print an announcement.) These requirements apply to the modified work as a whole. If identifiable sections of that work are not derived from the Program, and can be reasonably considered independent and separate works in themselves, then this License, and its terms, do not apply to those sections when you distribute them as separate works. But when you distribute the same sections as part of a whole which is a work based on the Program, the distribution of the whole must be on the terms of this License, whose permissions for other licensees extend to the entire whole, and thus to each and every part regardless of who wrote it. Thus, it is not the intent of this section to claim rights or contest your rights to work written entirely by you; rather, the intent is to exercise the right to control the distribution of derivative or collective works based on the Program. In addition, mere aggregation of another work not based on the Program with the Program (or with a work based on the Program) on a volume of a storage or distribution medium does not bring the other work under the scope of this License. 3. You may copy and distribute the Program (or a work based on it, under Section 2) in object code or executable form under the terms of Sections 1 and 2 above provided that you also do one of the following: a) Accompany it with the complete corresponding machine-readable source code, which must be distributed under the terms of Sections 1 and 2 above on a medium customarily used for software interchange; or, b) Accompany it with a written offer, valid for at least three years, to give any third party, for a charge no more than your cost of physically performing source distribution, a complete machine-readable copy of the corresponding source code, to be distributed under the terms of Sections 1 and 2 above on a medium customarily used for software interchange; or, c) Accompany it with the information you received as to the offer to distribute corresponding source code. (This alternative is allowed only for noncommercial distribution and only if you received the program in object code or executable form with such an offer, in accord with Subsection b above.) The source code for a work means the preferred form of the work for making modifications to it. For an executable work, complete source code means all the source code for all modules it contains, plus any associated interface definition files, plus the scripts used to control compilation and installation of the executable. However, as a special exception, the source code distributed need not include anything that is normally distributed (in either source or binary form) with the major components (compiler, kernel, and so on) of the operating system on which the executable runs, unless that component itself accompanies the executable. If distribution of executable or object code is made by offering access to copy from a designated place, then offering equivalent access to copy the source code from the same place counts as distribution of the source code, even though third parties are not compelled to copy the source along with the object code. 4. You may not copy, modify, sublicense, or distribute the Program except as expressly provided under this License. Any attempt otherwise to copy, modify, sublicense or distribute the Program is void, and will automatically terminate your rights under this License. However, parties who have received copies, or rights, from you under this License will not have their licenses terminated so long as such parties remain in full compliance. 5. You are not required to accept this License, since you have not signed it. However, nothing else grants you permission to modify or distribute the Program or its derivative works. These actions are prohibited by law if you do not accept this License. Therefore, by modifying or distributing the Program (or any work based on the Program), you indicate your acceptance of this License to do so, and all its terms and conditions for copying, distributing or modifying the Program or works based on it. 6. Each time you redistribute the Program (or any work based on the Program), the recipient automatically receives a license from the original licensor to copy, distribute or modify the Program subject to these terms and conditions. You may not impose any further restrictions on the recipients' exercise of the rights granted herein. You are not responsible for enforcing compliance by third parties to this License. 7. If, as a consequence of a court judgment or allegation of patent infringement or for any other reason (not limited to patent issues), conditions are imposed on you (whether by court order, agreement or otherwise) that contradict the conditions of this License, they do not excuse you from the conditions of this License. If you cannot distribute so as to satisfy simultaneously your obligations under this License and any other pertinent obligations, then as a consequence you may not distribute the Program at all. For example, if a patent license would not permit royalty-free redistribution of the Program by all those who receive copies directly or indirectly through you, then the only way you could satisfy both it and this License would be to refrain entirely from distribution of the Program. If any portion of this section is held invalid or unenforceable under any particular circumstance, the balance of the section is intended to apply and the section as a whole is intended to apply in other circumstances. It is not the purpose of this section to induce you to infringe any patents or other property right claims or to contest validity of any such claims; this section has the sole purpose of protecting the integrity of the free software distribution system, which is implemented by public license practices. Many people have made generous contributions to the wide range of software distributed through that system in reliance on consistent application of that system; it is up to the author/donor to decide if he or she is willing to distribute software through any other system and a licensee cannot impose that choice. This section is intended to make thoroughly clear what is believed to be a consequence of the rest of this License. 8. If the distribution and/or use of the Program is restricted in certain countries either by patents or by copyrighted interfaces, the original copyright holder who places the Program under this License may add an explicit geographical distribution limitation excluding those countries, so that distribution is permitted only in or among countries not thus excluded. In such case, this License incorporates the limitation as if written in the body of this License. 9. The Free Software Foundation may publish revised and/or new versions of the General Public License from time to time. Such new versions will be similar in spirit to the present version, but may differ in detail to address new problems or concerns. Each version is given a distinguishing version number. If the Program specifies a version number of this License which applies to it and "any later version", you have the option of following the terms and conditions either of that version or of any later version published by the Free Software Foundation. If the Program does not specify a version number of this License, you may choose any version ever published by the Free Software Foundation. 10. If you wish to incorporate parts of the Program into other free programs whose distribution conditions are different, write to the author to ask for permission. For software which is copyrighted by the Free Software Foundation, write to the Free Software Foundation; we sometimes make exceptions for this. Our decision will be guided by the two goals of preserving the free status of all derivatives of our free software and of promoting the sharing and reuse of software generally. NO WARRANTY 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, 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, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE 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. 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 convey 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 2 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, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA Also add information on how to contact you by electronic and paper mail. If the program is interactive, make it output a short notice like this when it starts in an interactive mode: Gnomovision version 69, Copyright (C) year name of author Gnomovision 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, the commands you use may be called something other than `show w' and `show c'; they could even be mouse-clicks or menu items--whatever suits your program. You should also get your employer (if you work as a programmer) or your school, if any, to sign a "copyright disclaimer" for the program, if necessary. Here is a sample; alter the names: Yoyodyne, Inc., hereby disclaims all copyright interest in the program `Gnomovision' (which makes passes at compilers) written by James Hacker. , 1 April 1989 Ty Coon, President of Vice This 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 Library General Public License instead of this License. readline-1.0.3.0/configure.ac0000644000000000000000000001022412110133243014075 0ustar0000000000000000AC_INIT([Haskell readline package], [1.0], [libraries@haskell.org], [readline]) FP_ARG_READLINE if test "$enable_readline" = no; then READLINE_BUILD_PACKAGE=no BUILD_PACKAGE_BOOL=False else # Safety check: Ensure that we are in the correct source directory. AC_CONFIG_SRCDIR([include/HsReadline.h]) AC_CONFIG_HEADERS([include/HsReadlineConfig.h]) READLINE_INCLUDE_DIRS= READLINE_LIB_DIRS= if test "x$readline_libraries" != "xNONE"; then LDFLAGS="-L$readline_libraries $LDFLAGS" READLINE_LDFLAGS="-L$readline_libraries $READLINE_LDFLAGS" READLINE_LIB_DIRS=$readline_libraries fi if test "x$readline_includes" != "xNONE"; then CPPFLAGS="-I$readline_includes $CPPFLAGS" READLINE_CFLAGS="-I$readline_includes $READLINE_CFLAGS" READLINE_INCLUDE_DIRS=$readline_includes fi AC_SUBST(READLINE_INCLUDE_DIRS) AC_SUBST(READLINE_LIB_DIRS) AC_ARG_WITH([cc], [C compiler], [CC=$withval]) AC_PROG_CC() # Mac OS X only: check for GNUreadline.framework (should be harmless on other systems) # If it's found, we'll prefer it over linking via "-lreadline". if test "x$readline_libraries" = "xNONE" && test "x$readline_includes" = "xNONE" ; then AC_MSG_CHECKING([for GNUreadline.framework]) save_libs="$LIBS" LIBS="-framework GNUreadline" AC_CHECK_FUNC(readline, HaveFrameworkReadline=YES, HaveFrameworkReadline=NO) LIBS="$save_libs" fi if test "x$HaveFrameworkReadline" = xYES ; then LIBS="-framework GNUreadline $LIBS" READLINE_FRAMEWORKS="GNUreadline" AC_DEFINE([HAVE_FRAMEWORK_READLINE], [1], [Define to 1 if we're using GNUreadline.framework.]) else dnl ** check for readline, for Hugs and hslibs' Readline dnl ncurses supersedes termcap and curses, but for compatibility, dnl we have to check for all... AC_CHECK_LIB(ncurses, tputs, HaveLibTermcap=YES; LibTermcap=ncurses, AC_CHECK_LIB(termcap, tputs, HaveLibTermcap=YES; LibTermcap=termcap, AC_CHECK_LIB(curses, tputs, HaveLibTermcap=YES; LibTermcap=curses, HaveLibTermcap=NO; LibTermcap=not-installed))) if test $HaveLibTermcap = YES ; then LIBS="-l$LibTermcap $LIBS" AC_CHECK_LIB(readline, readline, HaveLibReadline=YES) READLINE_LIBS="readline $LibTermcap" LIBS="$LIBS -lreadline" fi fi dnl ** At this point, $LIB should be completely set, so we can use AC_CHECK_FUNC from now on. dnl ** Is our readline really readline, or is it BSD's libedit? dnl ** Second test is necessary on Mac OS X 10.5. AC_CHECK_FUNC(rl_readline_version, ReadlineIsLibedit=NO, ReadlineIsLibedit=YES) if test "x$ReadlineIsLibedit" = xNO ; then AC_CHECK_FUNC(rl_begin_undo_group, , ReadlineIsLibedit=YES) fi if (test "x$HaveLibReadline" = xYES || test "x$HaveFrameworkReadline" = xYES) && test "x$ReadlineIsLibedit" = xNO ; then HAVE_READLINE=YES else AC_MSG_FAILURE([readline not found, so this package cannot be built]) HAVE_READLINE=NO fi if test "x$HAVE_READLINE" = xYES ; then AC_CHECK_FUNC(rl_erase_empty_line, [AC_DEFINE([HAVE_READLINE_4], [1], [Define to 1 if readline has version >= 4.0.])], [AC_DEFINE([HAVE_READLINE_4], [0], [Define to 1 if readline has version >= 4.0.])]) AC_CHECK_FUNC(rl_free_undo_list, [AC_DEFINE([HAVE_READLINE_4_2], [1], [Define to 1 if readline has version >= 4.2.])], [AC_DEFINE([HAVE_READLINE_4_2], [0], [Define to 1 if readline has version >= 4.2.])]) AC_CHECK_LIB(readline, rl_completion_word_break_hook, [AC_DEFINE([HAVE_READLINE_5], [1], [Define to 1 if readline has version >= 5.0.])], [AC_DEFINE([HAVE_READLINE_5], [0], [Define to 1 if readline has version >= 5.0.])]) else AC_DEFINE([HAVE_READLINE_4], [0], [Define to 1 if readline has version >= 4.0.]) AC_DEFINE([HAVE_READLINE_4_2], [0], [Define to 1 if readline has version >= 4.2.]) AC_DEFINE([HAVE_READLINE_5], [0], [Define to 1 if readline has version >= 5.0.]) fi if test "x$HAVE_READLINE" = xYES; then READLINE_BUILD_PACKAGE=yes BUILD_PACKAGE_BOOL=True else READLINE_BUILD_PACKAGE=no BUILD_PACKAGE_BOOL=False fi fi AC_SUBST([READLINE_BUILD_PACKAGE]) AC_SUBST([BUILD_PACKAGE_BOOL]) AC_SUBST([READLINE_CFLAGS]) AC_SUBST([READLINE_LDFLAGS]) AC_SUBST([READLINE_LIBS]) AC_SUBST([READLINE_FRAMEWORKS]) AC_CONFIG_FILES([config.mk readline.buildinfo]) AC_OUTPUT readline-1.0.3.0/readline.cabal0000644000000000000000000000162012110133243014356 0ustar0000000000000000name: readline version: 1.0.3.0 license: GPL license-file: LICENSE maintainer: libraries@haskell.org category: Console synopsis: An interface to the GNU readline library description: More information on readline can be found at http:\/\/www.gnu.org\/directory\/readline.html. extra-source-files: aclocal.m4 configure.ac configure config.mk.in readline.buildinfo.in include/HsReadlineConfig.h.in extra-tmp-files: config.log config.status autom4te.cache config.mk readline.buildinfo build-type: Configure cabal-version: >=1.2 flag split-base library exposed-modules: System.Console.Readline System.Console.SimpleLineEditor if flag(split-base) build-depends: base >= 3 && < 5, process else build-depends: base < 3 include-dirs: include includes: HsReadline.h install-includes: HsReadline.h HsReadlineConfig.h c-sources: HsReadline_cbits.c readline-1.0.3.0/configure0000755000000000000000000037454412110133243013540 0ustar0000000000000000#! /bin/sh # Guess values for system-dependent variables and create Makefiles. # Generated by GNU Autoconf 2.61 for Haskell readline package 1.0. # # Report bugs to . # # Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001, # 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc. # This configure script is free software; the Free Software Foundation # gives unlimited permission to copy, distribute and modify it. ## --------------------- ## ## M4sh Initialization. ## ## --------------------- ## # Be more Bourne compatible DUALCASE=1; export DUALCASE # for MKS sh if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then emulate sh NULLCMD=: # Zsh 3.x and 4.x performs word splitting on ${1+"$@"}, which # is contrary to our usage. Disable this feature. alias -g '${1+"$@"}'='"$@"' setopt NO_GLOB_SUBST else case `(set -o) 2>/dev/null` in *posix*) set -o posix ;; esac fi # PATH needs CR # Avoid depending upon Character Ranges. as_cr_letters='abcdefghijklmnopqrstuvwxyz' as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ' as_cr_Letters=$as_cr_letters$as_cr_LETTERS as_cr_digits='0123456789' as_cr_alnum=$as_cr_Letters$as_cr_digits # The user is always right. if test "${PATH_SEPARATOR+set}" != set; then echo "#! /bin/sh" >conf$$.sh echo "exit 0" >>conf$$.sh chmod +x conf$$.sh if (PATH="/nonexistent;."; conf$$.sh) >/dev/null 2>&1; then PATH_SEPARATOR=';' else PATH_SEPARATOR=: fi rm -f conf$$.sh fi # Support unset when possible. if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then as_unset=unset else as_unset=false fi # IFS # We need space, tab and new line, in precisely that order. Quoting is # there to prevent editors from complaining about space-tab. # (If _AS_PATH_WALK were called with IFS unset, it would disable word # splitting by setting IFS to empty value.) as_nl=' ' IFS=" "" $as_nl" # Find who we are. 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grep -v '^ *+' conftest.er1 >conftest.err rm -f conftest.er1 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && { test -z "$ac_c_werror_flag" || test ! -s conftest.err } && test -s conftest.$ac_objext; then ac_cv_prog_cc_g=yes else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext ac_c_werror_flag=$ac_save_c_werror_flag fi { echo "$as_me:$LINENO: result: $ac_cv_prog_cc_g" >&5 echo "${ECHO_T}$ac_cv_prog_cc_g" >&6; } if test "$ac_test_CFLAGS" = set; then CFLAGS=$ac_save_CFLAGS elif test $ac_cv_prog_cc_g = yes; then if test "$GCC" = yes; then CFLAGS="-g -O2" else CFLAGS="-g" fi else if test "$GCC" = yes; then CFLAGS="-O2" else CFLAGS= fi fi { echo "$as_me:$LINENO: checking for $CC option to accept ISO C89" >&5 echo $ECHO_N "checking for $CC option to accept ISO C89... $ECHO_C" >&6; } if test "${ac_cv_prog_cc_c89+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else ac_cv_prog_cc_c89=no ac_save_CC=$CC cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ #include #include #include #include /* Most of the following tests are stolen from RCS 5.7's src/conf.sh. */ struct buf { int x; }; FILE * (*rcsopen) (struct buf *, struct stat *, int); static char *e (p, i) char **p; int i; { return p[i]; } static char *f (char * (*g) (char **, int), char **p, ...) { char *s; va_list v; va_start (v,p); s = g (p, va_arg (v,int)); va_end (v); return s; } /* OSF 4.0 Compaq cc is some sort of almost-ANSI by default. It has function prototypes and stuff, but not '\xHH' hex character constants. These don't provoke an error unfortunately, instead are silently treated as 'x'. The following induces an error, until -std is added to get proper ANSI mode. Curiously '\x00'!='x' always comes out true, for an array size at least. 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Some functions are actually named something starting with __ and the normal name is an alias. */ #if defined __stub_readline || defined __stub___readline choke me #endif int main () { return readline (); ; return 0; } _ACEOF rm -f conftest.$ac_objext conftest$ac_exeext if { (ac_try="$ac_link" case "(($ac_try" in *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; *) ac_try_echo=$ac_try;; esac eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 (eval "$ac_link") 2>conftest.er1 ac_status=$? grep -v '^ *+' conftest.er1 >conftest.err rm -f conftest.er1 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && { test -z "$ac_c_werror_flag" || test ! -s conftest.err } && test -s conftest$ac_exeext && $as_test_x conftest$ac_exeext; then ac_cv_func_readline=yes else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ac_cv_func_readline=no fi rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \ conftest$ac_exeext conftest.$ac_ext fi { echo "$as_me:$LINENO: result: $ac_cv_func_readline" >&5 echo "${ECHO_T}$ac_cv_func_readline" >&6; } if test $ac_cv_func_readline = yes; then HaveFrameworkReadline=YES else HaveFrameworkReadline=NO fi LIBS="$save_libs" fi if test "x$HaveFrameworkReadline" = xYES ; then LIBS="-framework GNUreadline $LIBS" READLINE_FRAMEWORKS="GNUreadline" cat >>confdefs.h <<\_ACEOF #define HAVE_FRAMEWORK_READLINE 1 _ACEOF else { echo "$as_me:$LINENO: checking for tputs in -lncurses" >&5 echo $ECHO_N "checking for tputs in -lncurses... $ECHO_C" >&6; } if test "${ac_cv_lib_ncurses_tputs+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else ac_check_lib_save_LIBS=$LIBS LIBS="-lncurses $LIBS" cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ /* Override any GCC internal prototype to avoid an error. Use char because int might match the return type of a GCC builtin and then its argument prototype would still apply. */ #ifdef __cplusplus extern "C" #endif char tputs (); int main () { return tputs (); ; return 0; } _ACEOF rm -f conftest.$ac_objext conftest$ac_exeext if { (ac_try="$ac_link" case "(($ac_try" in *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; *) ac_try_echo=$ac_try;; esac eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 (eval "$ac_link") 2>conftest.er1 ac_status=$? grep -v '^ *+' conftest.er1 >conftest.err rm -f conftest.er1 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && { test -z "$ac_c_werror_flag" || test ! -s conftest.err } && test -s conftest$ac_exeext && $as_test_x conftest$ac_exeext; then ac_cv_lib_ncurses_tputs=yes else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ac_cv_lib_ncurses_tputs=no fi rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \ conftest$ac_exeext conftest.$ac_ext LIBS=$ac_check_lib_save_LIBS fi { echo "$as_me:$LINENO: result: $ac_cv_lib_ncurses_tputs" >&5 echo "${ECHO_T}$ac_cv_lib_ncurses_tputs" >&6; } if test $ac_cv_lib_ncurses_tputs = yes; then HaveLibTermcap=YES; LibTermcap=ncurses else { echo "$as_me:$LINENO: checking for tputs in -ltermcap" >&5 echo $ECHO_N "checking for tputs in -ltermcap... $ECHO_C" >&6; } if test "${ac_cv_lib_termcap_tputs+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else ac_check_lib_save_LIBS=$LIBS LIBS="-ltermcap $LIBS" cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ /* Override any GCC internal prototype to avoid an error. Use char because int might match the return type of a GCC builtin and then its argument prototype would still apply. */ #ifdef __cplusplus extern "C" #endif char tputs (); int main () { return tputs (); ; return 0; } _ACEOF rm -f conftest.$ac_objext conftest$ac_exeext if { (ac_try="$ac_link" case "(($ac_try" in *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; *) ac_try_echo=$ac_try;; esac eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 (eval "$ac_link") 2>conftest.er1 ac_status=$? grep -v '^ *+' conftest.er1 >conftest.err rm -f conftest.er1 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && { test -z "$ac_c_werror_flag" || test ! -s conftest.err } && test -s conftest$ac_exeext && $as_test_x conftest$ac_exeext; then ac_cv_lib_termcap_tputs=yes else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ac_cv_lib_termcap_tputs=no fi rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \ conftest$ac_exeext conftest.$ac_ext LIBS=$ac_check_lib_save_LIBS fi { echo "$as_me:$LINENO: result: $ac_cv_lib_termcap_tputs" >&5 echo "${ECHO_T}$ac_cv_lib_termcap_tputs" >&6; } if test $ac_cv_lib_termcap_tputs = yes; then HaveLibTermcap=YES; LibTermcap=termcap else { echo "$as_me:$LINENO: checking for tputs in -lcurses" >&5 echo $ECHO_N "checking for tputs in -lcurses... $ECHO_C" >&6; } if test "${ac_cv_lib_curses_tputs+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else ac_check_lib_save_LIBS=$LIBS LIBS="-lcurses $LIBS" cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ /* Override any GCC internal prototype to avoid an error. Use char because int might match the return type of a GCC builtin and then its argument prototype would still apply. */ #ifdef __cplusplus extern "C" #endif char tputs (); int main () { return tputs (); ; return 0; } _ACEOF rm -f conftest.$ac_objext conftest$ac_exeext if { (ac_try="$ac_link" case "(($ac_try" in *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; *) ac_try_echo=$ac_try;; esac eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 (eval "$ac_link") 2>conftest.er1 ac_status=$? grep -v '^ *+' conftest.er1 >conftest.err rm -f conftest.er1 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && { test -z "$ac_c_werror_flag" || test ! -s conftest.err } && test -s conftest$ac_exeext && $as_test_x conftest$ac_exeext; then ac_cv_lib_curses_tputs=yes else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ac_cv_lib_curses_tputs=no fi rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \ conftest$ac_exeext conftest.$ac_ext LIBS=$ac_check_lib_save_LIBS fi { echo "$as_me:$LINENO: result: $ac_cv_lib_curses_tputs" >&5 echo "${ECHO_T}$ac_cv_lib_curses_tputs" >&6; } if test $ac_cv_lib_curses_tputs = yes; then HaveLibTermcap=YES; LibTermcap=curses else HaveLibTermcap=NO; LibTermcap=not-installed fi fi fi if test $HaveLibTermcap = YES ; then LIBS="-l$LibTermcap $LIBS" { echo "$as_me:$LINENO: checking for readline in -lreadline" >&5 echo $ECHO_N "checking for readline in -lreadline... $ECHO_C" >&6; } if test "${ac_cv_lib_readline_readline+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else ac_check_lib_save_LIBS=$LIBS LIBS="-lreadline $LIBS" cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ /* Override any GCC internal prototype to avoid an error. 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Generated from configure.ac by autoheader. */ /* Define to 1 if we're using GNUreadline.framework. */ #undef HAVE_FRAMEWORK_READLINE /* Define to 1 if readline has version >= 4.0. */ #undef HAVE_READLINE_4 /* Define to 1 if readline has version >= 4.2. */ #undef HAVE_READLINE_4_2 /* Define to 1 if readline has version >= 5.0. */ #undef HAVE_READLINE_5 /* Define to the address where bug reports for this package should be sent. */ #undef PACKAGE_BUGREPORT /* Define to the full name of this package. */ #undef PACKAGE_NAME /* Define to the full name and version of this package. */ #undef PACKAGE_STRING /* Define to the one symbol short name of this package. */ #undef PACKAGE_TARNAME /* Define to the version of this package. */ #undef PACKAGE_VERSION readline-1.0.3.0/include/HsReadlineConfig.h0000644000000000000000000000175712110133243016562 0ustar0000000000000000/* include/HsReadlineConfig.h. Generated from HsReadlineConfig.h.in by configure. */ /* include/HsReadlineConfig.h.in. Generated from configure.ac by autoheader. */ /* Define to 1 if we're using GNUreadline.framework. */ /* #undef HAVE_FRAMEWORK_READLINE */ /* Define to 1 if readline has version >= 4.0. */ #define HAVE_READLINE_4 1 /* Define to 1 if readline has version >= 4.2. */ #define HAVE_READLINE_4_2 1 /* Define to 1 if readline has version >= 5.0. */ #define HAVE_READLINE_5 1 /* Define to the address where bug reports for this package should be sent. */ #define PACKAGE_BUGREPORT "libraries@haskell.org" /* Define to the full name of this package. */ #define PACKAGE_NAME "Haskell readline package" /* Define to the full name and version of this package. */ #define PACKAGE_STRING "Haskell readline package 1.0" /* Define to the one symbol short name of this package. */ #define PACKAGE_TARNAME "readline" /* Define to the version of this package. */ #define PACKAGE_VERSION "1.0" readline-1.0.3.0/include/HsReadline.h0000644000000000000000000000053312110133243015423 0ustar0000000000000000#ifndef HSREADLINE_H #define HSREADLINE_H #include "HsReadlineConfig.h" #include #if defined(HAVE_FRAMEWORK_READLINE) #include #include #else #include #include #endif extern void hs_rl_message (const char *s); #endif readline-1.0.3.0/System/0000755000000000000000000000000012110133243013074 5ustar0000000000000000readline-1.0.3.0/System/Console/0000755000000000000000000000000012110133243014476 5ustar0000000000000000readline-1.0.3.0/System/Console/SimpleLineEditor.hs0000644000000000000000000002232012110133243020241 0ustar0000000000000000{-# OPTIONS_GHC -cpp #-} ----------------------------------------------------------------------------- -- | -- Module : System.Console.SimpleLineEditor -- Copyright : (c) 2000,2003, Malcolm Wallace -- License : GPL (if it depends on readline, which is GPL) -- BSD (otherwise) -- -- Maintainer : libraries@haskell.org -- Stability : experimental -- Portability : non-portable (unix-specific at the moment) -- -- A simple line editor, using the GNU readline library if available, -- or a small emulation otherwise. -- ----------------------------------------------------------------------------- module System.Console.SimpleLineEditor ( initialise -- :: IO () , restore -- :: IO () , getLineEdited -- :: String -> IO (Maybe String) , delChars -- :: String -> IO () ) where import System.IO (stdin, stdout, BufferMode(..), hSetBuffering) import Control.Monad (when) import Data.Char (isSpace) import Data.Maybe (isJust, fromJust) #if USE_READLINE import System.Console.Readline #else import Data.IORef (IORef, newIORef, readIORef, writeIORef) import System.Cmd (system) import System.IO (hGetChar) import System.IO.Unsafe (unsafePerformIO) #endif -- | Set up the environment so that the terminal passes characters directly -- into the Haskell program, for immediate interpretation by the line editor. initialise :: IO () initialise = do hSetBuffering stdout NoBuffering hSetBuffering stdin NoBuffering #if USE_READLINE initialize #else -- The following call is probably non-portable. Better suggestions? -- Note, we turn OFF terminal echoing of input characters system("stty -icanon min 1 -echo") return () #endif -- | Restore the environment so that the terminal is usable in normal -- mode once again. restore :: IO () restore = do hSetBuffering stdout LineBuffering hSetBuffering stdin LineBuffering #if ! USE_READLINE -- The following call is probably non-portable. Better suggestions? -- We assume the terminal should echo input characters after restoration system("stty icanon echo") return () #endif -- | Remove the given string from immediately behind (to the left of) the -- current cursor position. delChars :: String -> IO () delChars [] = return () delChars (_:xs) = do putStr "\BS \BS" delChars xs -- | 'getLineEdited p' uses the string @p@ as a prompt, and returns a line -- of input from the user. The user can edit the line in-place before -- completion, using common readline-like command keys. (The real readline -- is used when available, or otherwise a simplified emulation.) #if USE_READLINE getLineEdited :: String -> IO (Maybe String) getLineEdited prompt = do ms <- readline prompt case ms of Nothing -> return ms Just s -> when (not (all isSpace s)) (addHistory s) >> return ms #else -- nasty imperative state holds the command history history :: IORef [String] history = unsafePerformIO (newIORef []) getLineEdited :: String -> IO (Maybe String) getLineEdited prompt = do putStr prompt previous <- readIORef history ms <- gl "" 0 ([],previous) case ms of Nothing -> return ms Just s -> do when (not (all isSpace s)) (writeIORef history (reverse s: previous)) return ms where gl s 0 hist = do -- s is accumulated line (in reverse) -- 0 is cursor position FROM THE END of the string cmd <- lineCmd case cmd of Char c -> putChar c >> gl (c:s) 0 hist Accept -> return (Just (reverse s)) Cancel -> return Nothing Delete L -> if null s then gl s 0 hist else delChars "_" >> gl (tail s) 0 hist Delete Begin -> delChars s >> gl "" 0 hist Move L -> if not (null s) then putStr ("\BS") >> gl s 1 hist else gl s 0 hist History -> case hist of (_fut, []) -> gl s 0 hist (fut, p:past) -> do delChars s putStr (reverse p) gl p 0 (s:fut, past) Future -> case hist of ([], _past) -> gl s 0 hist (f:fut, past) -> do delChars s putStr (reverse f) gl f 0 (fut, s:past) _ -> gl s 0 hist gl s n hist = do -- s is accumulated line, n(/=0) is cursor position cmd <- lineCmd case cmd of Char c -> do putStr (c: reverse (take n s)) putStr (replicate n '\BS') gl (take n s ++ c: drop n s) n hist Accept -> return (Just (reverse s)) Cancel -> return Nothing Move R -> do let n1 = n-1 putStr (reverse (take n s)++" ") putStr (replicate n '\BS') gl s n1 hist Delete R -> do let n1 = n-1 putStr (reverse (take n1 s) ++ " ") putStr (replicate (n1+1) '\BS') gl (take n1 s ++ drop n s) n1 hist Move L -> do let n1 = n+1 if n1 <= length s then do putStr ('\BS':reverse (take n1 s)) putStr (replicate n1 '\BS') gl s n1 hist else do putStr (reverse s++" ") putStr (replicate n1 '\BS') gl s n hist Delete L -> do let n1 = n+1 if n1 <= length s then do putStr ('\BS':reverse (take n s)++" ") putStr (replicate n1 '\BS') gl (take n s ++ drop n1 s) n hist else do putStr (reverse s++" ") putStr (replicate n1 '\BS') gl s n hist History -> case hist of (_fut, []) -> gl s n hist (fut, p:past) -> do putStr (replicate n ' ') delChars s putStr (reverse p) gl p 0 (s:fut, past) Future -> case hist of ([], _past) -> gl s n hist (f:fut, past) -> do putStr (replicate n ' ') delChars s putStr (reverse f) gl f 0 (fut, s:past) _ -> gl s n hist -- Define a mini-command language, to separate the lexing of input -- commands from their interpretation. Note there is room for expansion -- here, e.g. commands include word-at-a-time movement, but we don't -- currently have a key binding for that. data LineCmd = Char Char | Move Cursor | Delete Cursor | Accept | Cancel | History | Future | NoOp data Cursor = L | R | Begin | End -- not implemented yet: | WordL | WordR -- This little lexer for keystrokes does a reasonable job, but there -- are plenty of problems. E.g. the backspace key might generate a -- ^H character and not display it, which results in a mismatched cursor -- position. Behaviour is highly dependent on terminal settings I imagine. lineCmd :: IO LineCmd lineCmd = do c1 <- hGetChar stdin case c1 of '\n' -> putChar '\n' >> return Accept '\^K' -> putChar '\n' >> return Cancel '\DEL' -> return (Delete L) '\BS' -> return (Delete L) '\^L' -> return (Move R) '\^[' -> do c2 <- hGetChar stdin case c2 of 'k' -> return History 'j' -> return Future '[' -> do c3 <- hGetChar stdin case c3 of 'D' -> return (Move L) 'C' -> return (Move R) 'A' -> return History 'B' -> return Future '3' -> do c <- hGetChar stdin case c of '~' -> return (Delete R) _ -> return NoOp '4' -> do c <- hGetChar stdin case c of '~' -> return (Move End) _ -> return NoOp '1' -> do c <- hGetChar stdin case c of '~' -> return (Move Begin) _ -> return NoOp _ -> return NoOp 'O' -> do c3 <- hGetChar stdin case c3 of 'D' -> return (Move L) 'C' -> return (Move R) 'A' -> return History 'B' -> return Future _ -> return NoOp _ -> return NoOp _ -> return (Char c1) #endif /* USE_READLINE */ {- -- | A simple interactive test for the line-editing functionality. -- (This illustrates the necessary use of 'initialise' and 'restore' -- as brackets around the editing loop.) testIt :: IO () testIt = initialise >> loop >> restore where loop = do l <- getLineEdited "prompt> " when (isJust l) (putStrLn (fromJust l)) when (l/=Just "quit") loop -} readline-1.0.3.0/System/Console/Readline.hsc0000644000000000000000000014056512110133243016733 0ustar0000000000000000{-# LANGUAGE ForeignFunctionInterface #-} ----------------------------------------------------------------------------- -- | -- Module : System.Console.Readline -- Copyright : (c) unknown -- License : GPL (depends on libreadline, which is GPL) -- -- Maintainer : libraries@haskell.org -- Stability : provisional -- Portability : non-portable (requires libreadline) -- -- A Haskell binding to the GNU readline library. The GNU Readline -- library provides a set of functions for use by applications that -- allow users to edit command lines as they are typed in. By -- default, the line editing commands are similar to those of -- emacs. A vi-style line editing interface is also available. -- -- An example of a typical use of readline with history functionality -- is illustrated in the following read, eval, print loop: -- -- @ -- readEvalPrintLoop :: IO () -- readEvalPrintLoop = do -- maybeLine <- readline \"% \" -- case maybeLine of -- Nothing -> return () -- EOF \/ control-d -- Just \"exit\" -> return () -- Just line -> do addHistory line -- putStrLn $ \"The user input: \" ++ (show line) -- readEvalPrintLoop -- @ -- ----------------------------------------------------------------------------- #include "HsReadline.h" #include "HsReadlineConfig.h" module System.Console.Readline ( -------------------------------------------------------------------- -- Basic Behavior. readline, -- :: String -> IO (Maybe String) addHistory, -- :: String -> IO () -------------------------------------------------------------------- -- Readline Variables. getLineBuffer, -- :: IO String #if HAVE_READLINE_4 setLineBuffer, -- :: String -> IO () #endif -- Functions involving point positions are meaningful only when string -- conversion between Haskell and C preserves the length. getPoint, -- :: IO Int setPoint, -- :: Int -> IO () getEnd, -- :: IO Int setEnd, -- :: Int -> IO () getMark, -- :: IO Int setMark, -- :: Int -> IO () setDone, -- :: Bool -> IO () setPendingInput, -- :: Char -> IO () #if HAVE_READLINE_4 setEraseEmptyLine, -- :: Bool -> IO () #endif getPrompt, -- :: IO String #if HAVE_READLINE_4 setAlreadyPrompted, -- :: Bool -> IO () #endif getLibraryVersion, -- :: IO String getTerminalName, -- :: IO String setReadlineName, -- :: String -> IO () getInStream, -- :: IO Handle getOutStream, -- :: IO Handle setStartupHook, -- :: Maybe (IO ()) -> IO () #if HAVE_READLINE_4 setPreInputHook, -- :: Maybe (IO ()) -> IO () #endif setEventHook, -- :: Maybe (IO ()) -> IO () -- rl_getc_function wrapper is not provided because it uses FILE * -- and it would be too expensive to convert FILE * to Handle -- for each character. setRedisplayFunction, -- :: Maybe (IO ()) -> IO () -- Nothing means the original: rl_redisplay. -------------------------------------------------------------------- -- Selecting a Keymap. -- Keymaps are not garbage collected. They must be explicitly freed -- using freeKeymap. Keymap, -- data Keymap newBareKeymap, -- :: IO Keymap copyKeymap, -- :: Keymap -> IO Keymap newKeymap, -- :: IO Keymap freeKeymap, -- :: Keymap -> IO () getKeymap, -- :: IO Keymap setKeymap, -- :: Keymap -> IO () getKeymapByName, -- :: String -> IO Keymap getKeymapName, -- :: Keymap -> IO (Maybe String) getExecutingKeymap, -- :: IO Keymap getBindingKeymap, -- :: IO Keymap -------------------------------------------------------------------- -- Binding Keys. Callback, -- type Callback = Int -> Char -> IO Int addDefun, -- :: String -> Callback -> Maybe Char -> IO () bindKey, -- :: Char -> Callback -> IO () bindKeyInMap, -- :: Char -> Callback -> Keymap -> IO () unbindKey, -- :: Char -> IO () unbindKeyInMap, -- :: Char -> Keymap -> IO () -- rl_unbind_function_in_map is not provided because Haskell functions -- have no identity. unbindCommandInMap, -- :: String -> Keymap -> IO () Entry(..), -- data Entry -- = Function Callback -- | Macro String -- | Keymap Keymap genericBind, -- :: String -> Entry -> Keymap -> IO () parseAndBind, -- :: String -> IO () readInitFile, -- :: String -> IO () -------------------------------------------------------------------- -- Associating Function Names and Bindings. namedFunction, -- :: String -> IO (Maybe Callback) functionOfKeyseq, -- :: String -> Maybe Keymap -> IO Entry -- rl_invoking_keyseqs and rl_invoking_keyseqs_in_map are not provided -- because Haskell functions have no identity. functionDumper, -- :: Bool -> IO () listFunmapNames, -- :: IO () #if HAVE_READLINE_4 funmapNames, -- :: IO [String] #endif -------------------------------------------------------------------- -- Allowing Undoing. beginUndoGroup, endUndoGroup, -- :: IO () UndoCode(..), -- data UndoCode -- = UndoDelete -- | UndoInsert -- | UndoBegin -- | UndoEnd addUndo, -- :: UndoCode -> Int -> Int -> String -> IO () freeUndoList, -- :: IO () doUndo, -- :: IO Bool modifying, -- :: Int -> Int -> IO () -------------------------------------------------------------------- -- Redisplay. redisplay, -- :: IO () forcedUpdateDisplay, -- :: IO () onNewLine, -- :: IO () #if HAVE_READLINE_4 onNewLineWithPrompt, -- :: IO () #endif resetLineState, -- :: IO () message, -- :: String -> IO () clearMessage, -- :: IO () #if HAVE_READLINE_4 savePrompt, -- :: IO () restorePrompt, -- :: IO () #endif -------------------------------------------------------------------- -- Modifying Text. insertText, -- :: String -> IO () deleteText, -- :: Int -> Int -> IO () copyText, -- :: Int -> Int -> IO String killText, -- :: Int -> Int -> IO () -------------------------------------------------------------------- -- Utility functions. readKey, -- :: IO Char stuffChar, -- :: Char -> IO Bool initialize, -- :: IO () resetTerminal, -- :: Maybe String -> IO () ding, -- :: IO Bool #if HAVE_READLINE_4 displayMatchList, -- :: [String] -> IO () #endif -------------------------------------------------------------------- -- Alternate Interface. callbackHandlerInstall, -- :: String -> (String -> IO ()) -> IO (IO ()) -- Returns the cleanup action. callbackReadChar, -- :: IO () -------------------------------------------------------------------- -- Readline Signal Handling. #if HAVE_READLINE_4 setCatchSignals, -- :: Bool -> IO () getCatchSignals, -- :: IO Bool setCatchSigwinch, -- :: Bool -> IO () getCatchSigwinch, -- :: IO Bool cleanupAfterSignal, -- :: IO () freeLineState, -- :: IO () resetAfterSignal, -- :: IO () resizeTerminal, -- :: IO () #endif setSignals, -- :: IO () clearSignals, -- :: IO () -------------------------------------------------------------------- -- Completion functions. completeInternal, -- :: Char -> IO () complete, -- :: Int -> Char -> IO Int possibleCompletions, -- :: Int -> Char -> IO Int insertCompletions, -- :: Int -> Char -> IO Int -- readline uses functions that are called multiple times and -- return an entry at a time, maintaining their state at which -- point they are. This is silly in a functional language so here -- we work with functions String -> IO [String]. completionMatches, -- :: String -> (String -> IO [String]) -> IO (Maybe (String, [String])) filenameCompletionFunction, -- :: String -> IO [String] usernameCompletionFunction, -- :: String -> IO [String] setCompletionEntryFunction, -- :: Maybe (String -> IO [String]) -> IO () setAttemptedCompletionFunction, -- :: Maybe (String -> Int -> Int -> IO (Maybe (String, [String]))) -> IO () setFilenameQuotingFunction, -- :: Maybe (String -> Bool -> Ptr CChar -> IO String) -> IO () quoteFilename, -- :: String -> Bool -> Ptr CChar -> IO String setFilenameDequotingFunction, -- :: Maybe (String -> Maybe Char -> IO String) -> IO () setCharIsQuotedP, -- :: Maybe (String -> Int -> IO Bool) -> IO () getCompletionQueryItems, -- :: IO Int setCompletionQueryItems, -- :: Int -> IO () getBasicWordBreakCharacters, -- :: IO String setBasicWordBreakCharacters, -- :: String -> IO () getBasicQuoteCharacters, -- :: IO String setBasicQuoteCharacters, -- :: String -> IO () getCompleterWordBreakCharacters, -- :: IO String setCompleterWordBreakCharacters, -- :: String -> IO () getCompleterQuoteCharacters, -- :: IO String setCompleterQuoteCharacters, -- :: String -> IO () getFilenameQuoteCharacters, -- :: IO String setFilenameQuoteCharacters, -- :: String -> IO () getSpecialPrefixes, -- :: IO String setSpecialPrefixes, -- :: String -> IO () getCompletionAppendCharacter, -- :: IO (Maybe Char) setCompletionAppendCharacter, -- :: Maybe Char -> IO () setIgnoreCompletionDuplicates, -- :: Bool -> IO () getIgnoreCompletionDuplicates, -- :: IO Bool setFilenameCompletionDesired, -- :: Bool -> IO () getFilenameCompletionDesired, -- :: IO Bool setFilenameQuotingDesired, -- :: Bool -> IO () getFilenameQuotingDesired, -- :: IO Bool setInhibitCompletion, -- :: Bool -> IO () getInhibitCompletion, -- :: IO Bool setAttemptedCompletionOver, -- :: Bool -> IO () getAttemptedCompletionOver, -- :: IO Bool setIgnoreSomeCompletionsFunction, -- :: Maybe ([String] -> IO [String]) -> IO () -- The function may not make the list longer! setDirectoryCompletionHook -- :: Maybe (String -> IO String) -> IO () #if HAVE_READLINE_5 , setCompletionWordBreakHook -- :: Maybe (IO (Maybe String)) -> IO () #endif #if HAVE_READLINE_4 , setCompletionDisplayMatchesHook -- :: Maybe ([String] -> IO ()) -> IO () #endif ) where ------------------------------------------------------------------------ import Control.Monad ( liftM, when, unless ) import Data.Char ( chr, ord ) import Data.Maybe ( fromMaybe ) import System.IO ( Handle ) import System.IO.Unsafe ( unsafePerformIO ) import Data.IORef ( newIORef, readIORef, writeIORef ) import Foreign.Ptr ( Ptr, nullPtr, castPtr, castFunPtrToPtr, FunPtr, nullFunPtr, freeHaskellFunPtr ) import Foreign.Storable ( Storable(..) ) import Foreign.Marshal.Utils ( maybePeek, maybeWith, withMany ) import Foreign.Marshal.Alloc ( alloca, free ) import Foreign.Marshal.Array ( mallocArray, peekArray0, pokeArray0, withArray0 ) import Foreign.C.Types ( CChar, CFile ) import Foreign.C.String ( newCString, peekCString, withCString, castCharToCChar, castCCharToChar ) import GHC.IO.Handle.FD ( fdToHandle ) #if (__GLASGOW_HASKELL__>=705) import Foreign.C.Types(CInt(..)) #else import Foreign.C.Types(CInt) #endif {-# CFILES HsReadline_cbits.c #-} ------------------------------------------------------------------------ -- Basic Behavior. -- | readline is similar to 'System.IO.getLine', but with rich edit -- functionality and history capability. readline will read a line -- from the terminal and return it, using /prompt/ as a prompt. If -- prompt is the empty string, no prompt is issued. The line returned -- has the final newline removed, so only the text of the line -- remains. A blank line returns the empty string. If EOF is -- encountered while reading a line, and the line is empty, Nothing is -- returned. If an EOF is read with a non-empty line, it is treated -- as a newline. readline :: String-- ^prompt -> IO (Maybe String) -- ^returns the line the user input, or Nothing if EOF is encountered. readline prompt = do ptr <- withCString prompt readlineC flip maybePeek ptr $ \ptr' -> do line <- peekCString ptr' free ptr' return line foreign import ccall "readline" readlineC :: Ptr CChar -> IO (Ptr CChar) -- |Add this command to the history. This allows users to search backward -- through history with C-r and step through with up and down arrows, among -- other things. addHistory :: String -> IO () addHistory line = withCString line add_history foreign import ccall unsafe add_history :: Ptr CChar -> IO () ------------------------------------------------------------------------ -- Readline Variables. getLineBuffer :: IO String getLineBuffer = peek rl_line_buffer >>= peekCString #if HAVE_READLINE_4 setLineBuffer :: String -> IO () setLineBuffer line = do -- TODO: Fix the next line when text conversions are available! let lineC = map castCharToCChar line rl_extend_line_buffer (fromIntegral (length lineC)) ptr <- peek rl_line_buffer pokeArray0 0 (castPtr ptr) lineC #endif foreign import ccall "&" rl_line_buffer :: Ptr (Ptr CChar) #if HAVE_READLINE_4 -- The readline docs claim that rl_extend_line_buffer returns CInt, -- but the header and source both say that it returns void. foreign import ccall unsafe rl_extend_line_buffer :: CInt -> IO () #endif -- Functions involving point positions are meaningful only when string -- conversion between Haskell and C preserves the length. getPoint :: IO Int getPoint = liftM fromIntegral (peek rl_point) setPoint :: Int -> IO () setPoint p = poke rl_point (fromIntegral p) foreign import ccall "&" rl_point :: Ptr CInt getEnd :: IO Int getEnd = liftM fromIntegral (peek rl_end) setEnd :: Int -> IO () setEnd p = poke rl_end (fromIntegral p) foreign import ccall "&" rl_end :: Ptr CInt getMark :: IO Int getMark = liftM fromIntegral (peek rl_mark) setMark :: Int -> IO () setMark p = poke rl_mark (fromIntegral p) foreign import ccall "&" rl_mark :: Ptr CInt setDone :: Bool -> IO () setDone done = poke rl_done (if done then 1 else 0) foreign import ccall "&" rl_done :: Ptr CInt setPendingInput :: Char -> IO () setPendingInput key = poke rl_pending_input (fromIntegral (ord key)) foreign import ccall "&" rl_pending_input :: Ptr CInt #if HAVE_READLINE_4 setEraseEmptyLine :: Bool -> IO () setEraseEmptyLine erase = poke rl_erase_empty_line (if erase then 1 else 0) foreign import ccall "&" rl_erase_empty_line :: Ptr CInt #endif getPrompt :: IO String getPrompt = peek rl_prompt >>= peekCString foreign import ccall "&" rl_prompt :: Ptr (Ptr CChar) #if HAVE_READLINE_4 setAlreadyPrompted :: Bool -> IO () setAlreadyPrompted pr = poke rl_already_prompted (if pr then 1 else 0) foreign import ccall "&" rl_already_prompted :: Ptr CInt #endif getLibraryVersion :: IO String getLibraryVersion = peek rl_library_version >>= peekCString foreign import ccall "&" rl_library_version :: Ptr (Ptr CChar) getTerminalName :: IO String getTerminalName = peek rl_terminal_name >>= peekCString foreign import ccall "&" rl_terminal_name :: Ptr (Ptr CChar) setReadlineName :: String -> IO () setReadlineName name = newCString name >>= poke rl_readline_name -- The memory for name will never be freed. Otherwise we would -- have to recognize the original value which is a static string -- literal. This function is usually called only once anyway. foreign import ccall "&" rl_readline_name :: Ptr (Ptr CChar) getInStream :: IO Handle getInStream = peek rl_instream >>= hs_fileno >>= fdToHandle . fromIntegral foreign import ccall "&" rl_instream :: Ptr (Ptr CFile) getOutStream :: IO Handle getOutStream = peek rl_outstream >>= hs_fileno >>= fdToHandle . fromIntegral foreign import ccall "&" rl_outstream :: Ptr (Ptr CFile) foreign import ccall unsafe "__hscore_hs_fileno" hs_fileno :: Ptr CFile -> IO CInt setStartupHook :: Maybe (IO ()) -> IO () setStartupHook hook = setFunPtr rl_startup_hook hook exportHookInt foreign import ccall "&" rl_startup_hook :: Ptr (FunPtr (IO CInt)) #if HAVE_READLINE_4 setPreInputHook :: Maybe (IO ()) -> IO () setPreInputHook hook = setFunPtr rl_pre_input_hook hook exportHookInt foreign import ccall "&" rl_pre_input_hook :: Ptr (FunPtr (IO CInt)) #endif setEventHook :: Maybe (IO ()) -> IO () setEventHook hook = setFunPtr rl_event_hook hook exportHookInt foreign import ccall "&" rl_event_hook :: Ptr (FunPtr (IO CInt)) -- rl_getc_function wrapper is not provided because it uses FILE * -- and it would be too expensive to convert FILE * to Handle -- for each character. setRedisplayFunction :: Maybe (IO ()) -> IO () -- Nothing means the original: rl_redisplay. setRedisplayFunction fun = do oldPtr <- peek rl_redisplay_function when (oldPtr /= nullFunPtr && oldPtr /= rl_redisplay) $ freeHaskellFunPtr oldPtr newPtr <- case fun of Nothing -> return rl_redisplay Just f -> exportHookVoid f poke rl_redisplay_function newPtr foreign import ccall "&" rl_redisplay_function :: Ptr (FunPtr (IO ())) foreign import ccall "&" rl_redisplay :: FunPtr (IO ()) -- rl_redisplay_function can never be NULL. exportHookInt :: IO () -> IO (FunPtr (IO CInt)) exportHookInt hook = exportHookIntC (hook >> return 0) foreign import ccall "wrapper" exportHookIntC :: IO CInt -> IO (FunPtr (IO CInt)) foreign import ccall "wrapper" exportHookVoid :: IO () -> IO (FunPtr (IO ())) setFunPtr_freeIf :: (FunPtr a -> Bool) -> Ptr (FunPtr a) -> Maybe b -> (b -> IO (FunPtr a)) -> IO () setFunPtr_freeIf pred variable newFun makeNewFun = do oldPtr <- peek variable when (pred oldPtr) $ freeHaskellFunPtr oldPtr newPtr <- case newFun of Nothing -> return nullFunPtr Just f -> makeNewFun f poke variable newPtr setFunPtr :: Ptr (FunPtr a) -> Maybe b -> (b -> IO (FunPtr a)) -> IO () setFunPtr = setFunPtr_freeIf (/= nullFunPtr) ------------------------------------------------------------------------ -- Selecting a Keymap. -- Keymaps are not garbage collected. They must be explicitly freed -- using freeKeymap. data KeymapTag = KeymapTag newtype Keymap = MkKeymap (Ptr KeymapTag) foreign import ccall unsafe "rl_make_bare_keymap" newBareKeymap :: IO Keymap foreign import ccall unsafe "rl_copy_keymap" copyKeymap :: Keymap -> IO Keymap foreign import ccall unsafe "rl_make_keymap" newKeymap :: IO Keymap freeKeymap :: Keymap -> IO () freeKeymap k@(MkKeymap km) = do rl_discard_keymap k free km foreign import ccall unsafe "rl_discard_keymap" rl_discard_keymap :: Keymap -> IO () foreign import ccall unsafe "rl_get_keymap" getKeymap :: IO Keymap foreign import ccall unsafe "rl_set_keymap" setKeymap :: Keymap -> IO () getKeymapByName :: String -> IO Keymap getKeymapByName name = withCString name rl_get_keymap_by_name foreign import ccall unsafe rl_get_keymap_by_name :: Ptr CChar -> IO Keymap getKeymapName :: Keymap -> IO (Maybe String) getKeymapName km = do ptr <- rl_get_keymap_name km maybePeek peekCString ptr foreign import ccall unsafe "rl_get_keymap_name" rl_get_keymap_name :: Keymap -> IO (Ptr CChar) getExecutingKeymap :: IO Keymap getExecutingKeymap = liftM MkKeymap $ peek rl_executing_keymap foreign import ccall "&" rl_executing_keymap :: Ptr (Ptr KeymapTag) getBindingKeymap :: IO Keymap getBindingKeymap = liftM MkKeymap $ peek rl_binding_keymap foreign import ccall "&" rl_binding_keymap :: Ptr (Ptr KeymapTag) ------------------------------------------------------------------------ -- Binding Keys. type Callback = Int -> Char -> IO Int type CallbackC = CInt -> CInt -> IO CInt addDefun :: String -> Callback -> Maybe Char -> IO () addDefun name cb key = do namePtr <- newCString name -- rl_add_defun does *not* make a copy of the function name. cbPtr <- exportCallback cb -- The memory will never be freed. But readline does not provide -- removing defuns anyway. rl_add_defun namePtr cbPtr (maybe (-1) (fromIntegral . ord) key) return () foreign import ccall unsafe "rl_add_defun" rl_add_defun :: Ptr CChar -> FunPtr CallbackC -> CInt -> IO CInt bindKey :: Char -> Callback -> IO () bindKey key cb = do cbPtr <- exportCallback cb -- The memory will never be freed. We should provide a way to -- free it, but it's complicated because of multiple keymaps. -- It should probably be done explicitly. rl_bind_key (fromIntegral (ord key)) cbPtr return () foreign import ccall unsafe "rl_bind_key" rl_bind_key :: CInt -> FunPtr CallbackC -> IO CInt bindKeyInMap :: Char -> Callback -> Keymap -> IO () bindKeyInMap key cb km = do cbPtr <- exportCallback cb rl_bind_key_in_map (fromIntegral (ord key)) cbPtr km return () foreign import ccall unsafe "rl_bind_key_in_map" rl_bind_key_in_map :: CInt -> FunPtr CallbackC -> Keymap -> IO CInt unbindKey :: Char -> IO () unbindKey key = do rl_unbind_key (fromIntegral (ord key)) return () foreign import ccall unsafe rl_unbind_key :: CInt -> IO CInt unbindKeyInMap :: Char -> Keymap -> IO () unbindKeyInMap key km = do rl_unbind_key_in_map (fromIntegral (ord key)) km return () foreign import ccall unsafe "rl_unbind_key_in_map" rl_unbind_key_in_map :: CInt -> Keymap -> IO CInt -- rl_unbind_function_in_map is not provided because Haskell functions -- have no identity. unbindCommandInMap :: String -> Keymap -> IO () unbindCommandInMap comm km = do withCString comm $ \commPtr -> rl_unbind_command_in_map commPtr km return () foreign import ccall unsafe "rl_unbind_command_in_map" rl_unbind_command_in_map :: Ptr CChar -> Keymap -> IO CInt data Entry = Function Callback | Macro String | Keymap Keymap genericBind :: String -> Entry -> Keymap -> IO () genericBind keys (Function cb) km = do cbPtr <- exportCallback cb genericBind' (#const ISFUNC) keys (castFunPtrToPtr cbPtr) km genericBind keys (Macro s) km = withCString s $ \ptr -> genericBind' (#const ISMACR) keys ptr km genericBind keys (Keymap (MkKeymap km')) km = genericBind' (#const ISKMAP) keys (castPtr km') km genericBind' :: CInt -> String -> Ptr CChar -> Keymap -> IO () genericBind' typ keys dat km = do withCString keys $ \keysPtr -> rl_generic_bind typ keysPtr dat km return () foreign import ccall unsafe "rl_generic_bind" rl_generic_bind :: CInt -> Ptr CChar -> Ptr CChar -> Keymap -> IO CInt parseAndBind :: String -> IO () parseAndBind s = do ok <- withCString s rl_parse_and_bind unless (ok == 0) $ ioError (userError "Parse error") foreign import ccall unsafe "rl_parse_and_bind" rl_parse_and_bind :: Ptr CChar -> IO CInt readInitFile :: String -> IO () readInitFile name = do ok <- withCString name rl_read_init_file unless (ok == 0) $ ioError (userError "Can't read file") foreign import ccall unsafe "rl_read_init_file" rl_read_init_file :: Ptr CChar -> IO CInt ------------------------------------------------------------------------ -- Associating Function Names and Bindings. namedFunction :: String -> IO (Maybe Callback) namedFunction name = do ptr <- withCString name rl_named_function return $ if ptr == nullFunPtr then Nothing else Just (importCallback ptr) foreign import ccall unsafe "rl_named_function" rl_named_function :: Ptr CChar -> IO (FunPtr CallbackC) functionOfKeyseq :: String -> Maybe Keymap -> IO Entry functionOfKeyseq keys km = withCString keys $ \keysPtr -> alloca $ \typPtr -> do dat <- rl_function_of_keyseq keysPtr (fromMaybe (MkKeymap nullPtr) km) typPtr typ <- peek typPtr case typ of (#const ISFUNC) -> return (Function (importCallback dat)) (#const ISMACR) -> liftM Macro (peekCString (castFunPtrToPtr dat)) (#const ISKMAP) -> return (Keymap (MkKeymap (castFunPtrToPtr dat))) _ -> error "functionOfKeyseq: unknown type" foreign import ccall unsafe "rl_function_of_keyseq" rl_function_of_keyseq :: Ptr CChar -> Keymap -> Ptr CInt -> IO (FunPtr CallbackC) -- rl_invoking_keyseqs and rl_invoking_keyseqs_in_map are not provided -- because Haskell functions have no identity. functionDumper :: Bool -> IO () functionDumper readable = rl_function_dumper (if readable then 1 else 0) foreign import ccall unsafe "rl_function_dumper" rl_function_dumper :: CInt -> IO () foreign import ccall unsafe "rl_list_funmap_names" listFunmapNames :: IO () #if HAVE_READLINE_4 funmapNames :: IO [String] funmapNames = do namesPtr <- rl_funmap_names namePtrs <- peekArray0 nullPtr namesPtr free namesPtr mapM peekCString namePtrs foreign import ccall unsafe "rl_funmap_names" rl_funmap_names :: IO (Ptr (Ptr CChar)) #endif exportCallback :: Callback -> IO (FunPtr CallbackC) exportCallback cb = exportCallbackC $ \n key -> liftM fromIntegral (cb (fromIntegral n) (chr (fromIntegral key))) foreign import ccall "wrapper" exportCallbackC :: CallbackC -> IO (FunPtr CallbackC) importCallback :: FunPtr CallbackC -> Callback importCallback ptr n key = liftM fromIntegral $ importCallbackC ptr (fromIntegral n) (fromIntegral (ord key)) foreign import ccall "dynamic" importCallbackC :: FunPtr CallbackC -> CallbackC ------------------------------------------------------------------------ -- Allowing Undoing. beginUndoGroup :: IO () beginUndoGroup = do rl_begin_undo_group; return () foreign import ccall unsafe "rl_begin_undo_group" rl_begin_undo_group :: IO CInt endUndoGroup :: IO () endUndoGroup = do rl_end_undo_group; return () foreign import ccall unsafe "rl_end_undo_group" rl_end_undo_group :: IO CInt data UndoCode = UndoDelete | UndoInsert | UndoBegin | UndoEnd addUndo :: UndoCode -> Int -> Int -> String -> IO () addUndo uc start end text = withCString text $ \textPtr -> rl_add_undo uc' (fromIntegral start) (fromIntegral end) textPtr where uc' = case uc of UndoDelete -> #const UNDO_DELETE UndoInsert -> #const UNDO_INSERT UndoBegin -> #const UNDO_BEGIN UndoEnd -> #const UNDO_END foreign import ccall unsafe rl_add_undo :: CInt -> CInt -> CInt -> Ptr CChar -> IO () #if HAVE_READLINE_4_2 foreign import ccall unsafe "rl_free_undo_list" freeUndoList :: IO () #else foreign import ccall unsafe "free_undo_list" freeUndoList :: IO () #endif doUndo :: IO Bool doUndo = liftM (/= 0) rl_do_undo foreign import ccall unsafe "rl_do_undo" rl_do_undo :: IO CInt modifying :: Int -> Int -> IO () modifying start end = do rl_modifying (fromIntegral start) (fromIntegral end) return () foreign import ccall unsafe "rl_modifying" rl_modifying :: CInt -> CInt -> IO CInt ------------------------------------------------------------------------ -- Redisplay. foreign import ccall unsafe "rl_redisplay" redisplay :: IO () forcedUpdateDisplay :: IO () forcedUpdateDisplay = do rl_forced_update_display; return () foreign import ccall unsafe "rl_forced_update_display" rl_forced_update_display :: IO CInt onNewLine :: IO () onNewLine = do rl_on_new_line; return () foreign import ccall unsafe "rl_on_new_line" rl_on_new_line :: IO CInt #if HAVE_READLINE_4 onNewLineWithPrompt :: IO () onNewLineWithPrompt = do rl_on_new_line_with_prompt; return () foreign import ccall unsafe "rl_on_new_line_with_prompt" rl_on_new_line_with_prompt :: IO CInt #endif resetLineState :: IO () resetLineState = do rl_reset_line_state; return () foreign import ccall unsafe "rl_reset_line_state" rl_reset_line_state :: IO CInt message :: String -> IO () message s = withCString s hs_rl_message foreign import ccall unsafe "hs_rl_message" hs_rl_message :: Ptr CChar -> IO () clearMessage :: IO () clearMessage = do rl_clear_message; return () foreign import ccall unsafe "rl_clear_message" rl_clear_message :: IO CInt #if HAVE_READLINE_4 foreign import ccall unsafe "rl_save_prompt" savePrompt :: IO () foreign import ccall unsafe "rl_restore_prompt" restorePrompt :: IO () #endif ------------------------------------------------------------------------ -- Modifying Text. insertText :: String -> IO () insertText s = do withCString s rl_insert_text; return () foreign import ccall unsafe "rl_insert_text" rl_insert_text :: Ptr CChar -> IO CInt deleteText :: Int -> Int -> IO () deleteText start end = do rl_delete_text (fromIntegral start) (fromIntegral end) return () foreign import ccall unsafe "rl_delete_text" rl_delete_text :: CInt -> CInt -> IO CInt copyText :: Int -> Int -> IO String copyText start end = do ptr <- rl_copy_text (fromIntegral start) (fromIntegral end) text <- peekCString ptr free ptr return text foreign import ccall unsafe "rl_copy_text" rl_copy_text :: CInt -> CInt -> IO (Ptr CChar) killText :: Int -> Int -> IO () killText start end = do rl_kill_text (fromIntegral start) (fromIntegral end) return () foreign import ccall unsafe "rl_kill_text" rl_kill_text :: CInt -> CInt -> IO CInt ------------------------------------------------------------------------ -- Utility functions. readKey :: IO Char readKey = liftM (chr . fromIntegral) rl_read_key foreign import ccall unsafe "rl_read_key" rl_read_key :: IO CInt stuffChar :: Char -> IO Bool stuffChar key = liftM (/= 0) (rl_stuff_char (fromIntegral (ord key))) foreign import ccall unsafe "rl_stuff_char" rl_stuff_char :: CInt -> IO CInt initialize :: IO () initialize = do rl_initialize; return () foreign import ccall unsafe "rl_initialize" rl_initialize :: IO CInt resetTerminal :: Maybe String -> IO () resetTerminal name = do maybeWith withCString name rl_reset_terminal return () foreign import ccall unsafe "rl_reset_terminal" rl_reset_terminal :: Ptr CChar -> IO CInt ding :: IO Bool ding = liftM (== 0) rl_ding #if HAVE_READLINE_4_2 foreign import ccall unsafe "rl_ding" rl_ding :: IO CInt #else foreign import ccall unsafe "ding" rl_ding :: IO CInt #endif #if HAVE_READLINE_4 displayMatchList :: [String] -> IO () displayMatchList matches = withMany withCString matches $ \matchPtrs -> withArray0 nullPtr (nullPtr:matchPtrs) $ \matchesPtr -> rl_display_match_list matchesPtr (fromIntegral (length matches)) (fromIntegral (maximum (map length matches))) foreign import ccall unsafe "rl_display_match_list" rl_display_match_list :: Ptr (Ptr CChar) -> CInt -> CInt -> IO () #endif ------------------------------------------------------------------------ -- Alternate Interface. type Handler = Ptr CChar -> IO () callbackHandlerInstall :: String -> (String -> IO ()) -> IO (IO ()) callbackHandlerInstall prompt lhandler = do lhandlerPtr <- exportHandler $ \linePtr -> peekCString linePtr >>= lhandler withCString prompt $ \promptPtr -> do rl_callback_handler_install promptPtr lhandlerPtr return (do rl_callback_handler_remove; freeHaskellFunPtr lhandlerPtr) foreign import ccall "wrapper" exportHandler :: Handler -> IO (FunPtr Handler) foreign import ccall unsafe "rl_callback_handler_install" rl_callback_handler_install :: Ptr CChar -> FunPtr Handler -> IO () foreign import ccall unsafe "rl_callback_handler_remove" rl_callback_handler_remove :: IO () foreign import ccall "rl_callback_read_char" callbackReadChar :: IO () ------------------------------------------------------------------------ -- Readline Signal Handling. #if HAVE_READLINE_4 setCatchSignals :: Bool -> IO () setCatchSignals cat = poke rl_catch_signals (if cat then 1 else 0) getCatchSignals :: IO Bool getCatchSignals = liftM (/= 0) (peek rl_catch_signals) foreign import ccall "&" rl_catch_signals :: Ptr CInt setCatchSigwinch :: Bool -> IO () setCatchSigwinch cat = poke rl_catch_sigwinch (if cat then 1 else 0) getCatchSigwinch :: IO Bool getCatchSigwinch = liftM (/= 0) (peek rl_catch_sigwinch) foreign import ccall "&" rl_catch_sigwinch :: Ptr CInt foreign import ccall unsafe "rl_cleanup_after_signal" cleanupAfterSignal :: IO () foreign import ccall unsafe "rl_free_line_state" freeLineState :: IO () foreign import ccall unsafe "rl_reset_after_signal" resetAfterSignal :: IO () foreign import ccall unsafe "rl_resize_terminal" resizeTerminal :: IO () #endif setSignals :: IO () setSignals = do rl_set_signals; return () foreign import ccall unsafe "rl_set_signals" rl_set_signals :: IO CInt clearSignals :: IO () clearSignals = do rl_clear_signals; return () foreign import ccall unsafe "rl_clear_signals" rl_clear_signals :: IO CInt ------------------------------------------------------------------------ -- Completion functions. completeInternal :: Char -> IO () completeInternal what = do rl_complete_internal (fromIntegral (ord what)) return () foreign import ccall "rl_complete_internal" rl_complete_internal :: CInt -> IO CInt complete :: Int -> Char -> IO Int complete n key = liftM fromIntegral $ rl_complete (fromIntegral n) (fromIntegral (ord key)) foreign import ccall "rl_complete" rl_complete :: CInt -> CInt -> IO CInt possibleCompletions :: Int -> Char -> IO Int possibleCompletions n key = liftM fromIntegral $ rl_possible_completions (fromIntegral n) (fromIntegral (ord key)) foreign import ccall "rl_possible_completions" rl_possible_completions :: CInt -> CInt -> IO CInt insertCompletions :: Int -> Char -> IO Int insertCompletions n key = liftM fromIntegral $ rl_insert_completions (fromIntegral n) (fromIntegral (ord key)) foreign import ccall "rl_insert_completions" rl_insert_completions :: CInt -> CInt -> IO CInt type Generator = Ptr CChar -> CInt -> IO (Ptr CChar) singleToWhole :: Generator -> String -> IO [String] singleToWhole f text = withCString text $ \textPtr -> let loop n = do ptr <- f textPtr n if ptr == nullPtr then return [] else do str <- peekCString ptr free ptr rest <- loop (n+1) return (str:rest) in loop 0 wholeToSingle :: (String -> IO [String]) -> IO Generator wholeToSingle f = do ref <- newIORef [] return $ \textPtr state -> do when (state == 0) $ peekCString textPtr >>= f >>= writeIORef ref next <- readIORef ref case next of [] -> return nullPtr x:xs -> do writeIORef ref xs newCString x completionMatches :: String -> (String -> IO [String]) -> IO (Maybe (String, [String])) completionMatches text entry = withCString text $ \textPtr -> do entryPtr <- wholeToSingle entry >>= exportGenerator matchesPtr <- rl_completion_matches textPtr entryPtr freeHaskellFunPtr entryPtr if matchesPtr == nullPtr then return Nothing else do matchPtrs <- peekArray0 nullPtr matchesPtr (text':matches) <- mapM peekCString matchPtrs mapM_ free matchPtrs free matchesPtr return (Just (text', matches)) #if HAVE_READLINE_4_2 foreign import ccall "rl_completion_matches" rl_completion_matches :: Ptr CChar -> FunPtr Generator -> IO (Ptr (Ptr CChar)) #else foreign import ccall "completion_matches" rl_completion_matches :: Ptr CChar -> FunPtr Generator -> IO (Ptr (Ptr CChar)) #endif filenameCompletionFunction :: String -> IO [String] filenameCompletionFunction = singleToWhole rl_filename_completion_function #if HAVE_READLINE_4_2 foreign import ccall unsafe "rl_filename_completion_function" rl_filename_completion_function :: Generator #else foreign import ccall unsafe "filename_completion_function" rl_filename_completion_function :: Generator #endif usernameCompletionFunction :: String -> IO [String] usernameCompletionFunction = singleToWhole rl_username_completion_function #if HAVE_READLINE_4_2 foreign import ccall unsafe "rl_username_completion_function" rl_username_completion_function :: Generator #else foreign import ccall unsafe "username_completion_function" rl_username_completion_function :: Generator #endif setCompletionEntryFunction :: Maybe (String -> IO [String]) -> IO () setCompletionEntryFunction fun = setFunPtr rl_completion_entry_function fun $ \f -> wholeToSingle f >>= exportGenerator foreign import ccall "&" rl_completion_entry_function :: Ptr (FunPtr Generator) foreign import ccall "wrapper" exportGenerator :: Generator -> IO (FunPtr Generator) type Completer = Ptr CChar -> CInt -> CInt -> IO (Ptr (Ptr CChar)) setAttemptedCompletionFunction :: Maybe (String -> Int -> Int -> IO (Maybe (String, [String]))) -> IO () setAttemptedCompletionFunction fun = setFunPtr rl_attempted_completion_function fun $ \f -> exportCompleter $ \textPtr start end -> do text <- peekCString textPtr found <- f text (fromIntegral start) (fromIntegral end) case found of Nothing -> return nullPtr Just (text', matches) -> do matchPtrs <- mapM newCString (text':matches) matchesPtr <- mallocArray (length matchPtrs + 1) pokeArray0 nullPtr matchesPtr matchPtrs return matchesPtr foreign import ccall "&" rl_attempted_completion_function :: Ptr (FunPtr Completer) foreign import ccall "wrapper" exportCompleter :: Completer -> IO (FunPtr Completer) #if HAVE_READLINE_5 type StringFunc = IO (Ptr CChar) foreign import ccall "&" rl_completion_word_break_hook :: Ptr (FunPtr StringFunc) foreign import ccall "wrapper" exportStringFunc :: StringFunc -> IO (FunPtr StringFunc) setCompletionWordBreakHook :: Maybe (IO (Maybe String)) -> IO () setCompletionWordBreakHook fun = setFunPtr rl_completion_word_break_hook fun $ \f -> exportStringFunc $ do wordBreaks <- f case wordBreaks of Nothing -> return nullPtr Just wordBreaksString -> newCString wordBreaksString #endif type Quoter = Ptr CChar -> CInt -> Ptr CChar -> IO (Ptr CChar) setFilenameQuotingFunction :: Maybe (String -> Bool -> Ptr CChar -> IO String) -> IO () setFilenameQuotingFunction fun = setFunPtr_freeIf (\oldPtr -> oldPtr /= nullFunPtr && oldPtr /= rl_quote_filename) rl_filename_quoting_function fun $ \f -> exportQuoter $ \textPtr typ qp -> do text <- peekCString textPtr s <- f text (typ == (#const MULT_MATCH)) qp newCString s foreign import ccall "&" rl_filename_quoting_function :: Ptr (FunPtr Quoter) foreign import ccall "wrapper" exportQuoter :: Quoter -> IO (FunPtr Quoter) -- We must not freeHaskellFunPtr the original value of the -- rl_filename_quoting_function variable, because it's a native C -- function. But this value, rl_quote_filename, is a static function, -- not exported by readline. So we read it from the variable at the -- beginning and store it in a Haskell's global variable. We also -- export its Haskell translation to be able to restore its behavior -- by setFilenameQuotingFunction. {-# NOINLINE rl_quote_filename #-} rl_quote_filename :: FunPtr Quoter rl_quote_filename = unsafePerformIO $ peek rl_filename_quoting_function quoteFilename :: String -> Bool -> Ptr CChar -> IO String quoteFilename text typ qp = do ptr <- withCString text $ \textPtr -> importQuoter rl_quote_filename textPtr (if typ then (#const SINGLE_MATCH) else (#const MULT_MATCH)) qp s <- peekCString ptr free ptr return s foreign import ccall "dynamic" importQuoter :: FunPtr Quoter -> Quoter type Dequoter = Ptr CChar -> CInt -> IO (Ptr CChar) setFilenameDequotingFunction :: Maybe (String -> Maybe Char -> IO String) -> IO () setFilenameDequotingFunction fun = setFunPtr rl_filename_dequoting_function fun $ \f -> exportDequoter $ \textPtr qc -> do text <- peekCString textPtr s <- f text (if qc==0 then Nothing else Just (chr (fromIntegral qc))) newCString s foreign import ccall "&"rl_filename_dequoting_function :: Ptr (FunPtr Dequoter) foreign import ccall "wrapper" exportDequoter :: Dequoter -> IO (FunPtr Dequoter) type IsQuoted = Ptr CChar -> CInt -> IO CInt setCharIsQuotedP :: Maybe (String -> Int -> IO Bool) -> IO () setCharIsQuotedP fun = setFunPtr rl_char_is_quoted_p fun $ \f -> exportIsQuoted $ \textPtr index -> do text <- peekCString textPtr quoted <- f text (fromIntegral index) return (if quoted then 1 else 0) foreign import ccall "&" rl_char_is_quoted_p :: Ptr (FunPtr IsQuoted) foreign import ccall "wrapper" exportIsQuoted :: IsQuoted -> IO (FunPtr IsQuoted) getCompletionQueryItems :: IO Int getCompletionQueryItems = liftM fromIntegral (peek rl_completion_query_items) setCompletionQueryItems :: Int -> IO () setCompletionQueryItems items = poke rl_completion_query_items (fromIntegral items) foreign import ccall "&" rl_completion_query_items :: Ptr CInt getBasicWordBreakCharacters :: IO String getBasicWordBreakCharacters = getCharacters rl_basic_word_break_characters setBasicWordBreakCharacters :: String -> IO () setBasicWordBreakCharacters = setCharacters_freeIf (/= orig_rl_basic_word_break_characters) rl_basic_word_break_characters foreign import ccall "&" rl_basic_word_break_characters :: Ptr (Ptr CChar) -- Similarly to rl_quote_filename, we must be able to detect the -- original pointer to a static char array. {-# NOINLINE orig_rl_basic_word_break_characters #-} orig_rl_basic_word_break_characters :: Ptr CChar orig_rl_basic_word_break_characters = unsafePerformIO $ peek rl_basic_word_break_characters getBasicQuoteCharacters :: IO String getBasicQuoteCharacters = getCharacters rl_basic_quote_characters setBasicQuoteCharacters :: String -> IO () setBasicQuoteCharacters = setCharacters_freeIf (/= orig_rl_basic_quote_characters) rl_basic_quote_characters foreign import ccall "&" rl_basic_quote_characters :: Ptr (Ptr CChar) {-# NOINLINE orig_rl_basic_quote_characters #-} orig_rl_basic_quote_characters :: Ptr CChar orig_rl_basic_quote_characters = unsafePerformIO $ peek rl_basic_quote_characters getCompleterWordBreakCharacters :: IO String getCompleterWordBreakCharacters = getCharacters rl_completer_word_break_characters setCompleterWordBreakCharacters :: String -> IO () setCompleterWordBreakCharacters = setCharacters_freeIf (\oldPtr -> oldPtr /= nullPtr && oldPtr /= orig_rl_basic_word_break_characters) rl_completer_word_break_characters foreign import ccall "&" rl_completer_word_break_characters :: Ptr (Ptr CChar) getCompleterQuoteCharacters :: IO String getCompleterQuoteCharacters = getCharacters rl_completer_quote_characters setCompleterQuoteCharacters :: String -> IO () setCompleterQuoteCharacters cs = do oldPtr <- peek rl_completer_quote_characters when (oldPtr /= nullPtr) $ free oldPtr -- I think that rl_completer_quote_characters should never be empty -- but can be NULL. newPtr <- if null cs then return nullPtr else do ptr <- mallocArray (length cs + 1) pokeArray0 0 ptr (map castCharToCChar cs) return ptr poke rl_completer_quote_characters newPtr foreign import ccall "&" rl_completer_quote_characters :: Ptr (Ptr CChar) getFilenameQuoteCharacters :: IO String getFilenameQuoteCharacters = getCharacters rl_filename_quote_characters setFilenameQuoteCharacters :: String -> IO () setFilenameQuoteCharacters = setCharacters rl_filename_quote_characters foreign import ccall "&" rl_filename_quote_characters :: Ptr (Ptr CChar) getSpecialPrefixes :: IO String getSpecialPrefixes = getCharacters rl_special_prefixes setSpecialPrefixes :: String -> IO () setSpecialPrefixes = setCharacters rl_special_prefixes foreign import ccall "&" rl_special_prefixes :: Ptr (Ptr CChar) getCompletionAppendCharacter :: IO (Maybe Char) getCompletionAppendCharacter = do ch <- peek rl_completion_append_character return $ if ch == 0 then Nothing else Just (chr (fromIntegral ch)) setCompletionAppendCharacter :: Maybe Char -> IO () setCompletionAppendCharacter ch = poke rl_completion_append_character (maybe 0 (fromIntegral . ord) ch) foreign import ccall "&" rl_completion_append_character :: Ptr CInt setIgnoreCompletionDuplicates :: Bool -> IO () setIgnoreCompletionDuplicates ign = poke rl_ignore_completion_duplicates (if ign then 1 else 0) getIgnoreCompletionDuplicates :: IO Bool getIgnoreCompletionDuplicates = liftM (/= 0) (peek rl_ignore_completion_duplicates) foreign import ccall "&" rl_ignore_completion_duplicates :: Ptr CInt setFilenameCompletionDesired :: Bool -> IO () setFilenameCompletionDesired comp = poke rl_filename_completion_desired (if comp then 1 else 0) getFilenameCompletionDesired :: IO Bool getFilenameCompletionDesired = liftM (/= 0) (peek rl_filename_completion_desired) foreign import ccall "&" rl_filename_completion_desired :: Ptr CInt setFilenameQuotingDesired :: Bool -> IO () setFilenameQuotingDesired quot = poke rl_filename_quoting_desired (if quot then 1 else 0) getFilenameQuotingDesired :: IO Bool getFilenameQuotingDesired = liftM (/= 0) (peek rl_filename_quoting_desired) foreign import ccall "&" rl_filename_quoting_desired :: Ptr CInt setInhibitCompletion :: Bool -> IO () setInhibitCompletion inh = poke rl_inhibit_completion (if inh then 1 else 0) getInhibitCompletion :: IO Bool getInhibitCompletion = liftM (/= 0) (peek rl_inhibit_completion) foreign import ccall "&" rl_attempted_completion_over :: Ptr CInt getAttemptedCompletionOver :: IO Bool getAttemptedCompletionOver = liftM (/=0) (peek rl_attempted_completion_over) setAttemptedCompletionOver :: Bool -> IO () setAttemptedCompletionOver over = poke rl_attempted_completion_over (if over then 1 else 0) foreign import ccall "&" rl_inhibit_completion :: Ptr CInt type Ignorer = Ptr (Ptr CChar) -> IO CInt setIgnoreSomeCompletionsFunction :: Maybe ([String] -> IO [String]) -> IO () -- The function may not make the list longer! setIgnoreSomeCompletionsFunction fun = setFunPtr rl_ignore_some_completions_function fun $ \f -> exportIgnorer $ \matchesPtr -> do matchPtrs <- peekArray0 nullPtr matchesPtr matches <- mapM peekCString matchPtrs mapM_ free matchPtrs f matches >>= mapM newCString >>= pokeArray0 nullPtr matchesPtr return 0 foreign import ccall "&" rl_ignore_some_completions_function :: Ptr (FunPtr Ignorer) foreign import ccall "wrapper" exportIgnorer :: Ignorer -> IO (FunPtr Ignorer) type DirCompleter = Ptr (Ptr CChar) -> IO CInt setDirectoryCompletionHook :: Maybe (String -> IO String) -> IO () setDirectoryCompletionHook fun = setFunPtr rl_directory_completion_hook fun $ \f -> exportDirCompleter $ \dirPtrPtr -> do oldDirPtr <- peek dirPtrPtr oldDir <- peekCString oldDirPtr free oldDirPtr newDirPtr <- f oldDir >>= newCString poke dirPtrPtr newDirPtr return 0 foreign import ccall "&" rl_directory_completion_hook :: Ptr (FunPtr DirCompleter) foreign import ccall "wrapper" exportDirCompleter :: DirCompleter -> IO (FunPtr DirCompleter) #if HAVE_READLINE_4 type Displayer = Ptr (Ptr CChar) -> CInt -> CInt -> IO () setCompletionDisplayMatchesHook :: Maybe ([String] -> IO ()) -> IO () setCompletionDisplayMatchesHook fun = setFunPtr rl_completion_display_matches_hook fun $ \f -> exportDisplayHook $ \matchesPtr _ _ -> peekArray0 nullPtr matchesPtr >>= mapM peekCString >>= f foreign import ccall "&" rl_completion_display_matches_hook :: Ptr (FunPtr Displayer) foreign import ccall "wrapper" exportDisplayHook :: Displayer -> IO (FunPtr Displayer) #endif setCharacters_freeIf :: (Ptr CChar -> Bool) -> Ptr (Ptr CChar) -> String -> IO () setCharacters_freeIf pred variable chars = do oldPtr <- peek variable when (pred oldPtr) $ free oldPtr newPtr <- mallocArray (length chars + 1) pokeArray0 0 newPtr (map castCharToCChar chars) poke variable newPtr setCharacters :: Ptr (Ptr CChar) -> String -> IO () setCharacters = setCharacters_freeIf (/= nullPtr) getCharacters :: Ptr (Ptr CChar) -> IO String getCharacters variable = do ptr <- peek variable if ptr == nullPtr then return "" else do cs <- peekArray0 0 ptr return (map castCCharToChar cs)