pax_global_header 0000666 0000000 0000000 00000000064 13644002433 0014511 g ustar 00root root 0000000 0000000 52 comment=60f9aeb219e3f03e0e871ca96eaddef33ff73550
golang-github-scylladb-termtables-0.0~git20191203.c4c0b6d/ 0000775 0000000 0000000 00000000000 13644002433 0022702 5 ustar 00root root 0000000 0000000 golang-github-scylladb-termtables-0.0~git20191203.c4c0b6d/.gitignore 0000664 0000000 0000000 00000000414 13644002433 0024671 0 ustar 00root root 0000000 0000000 # Binaries for programs and plugins
*.exe
*.dll
*.so
*.dylib
# Development binary, built with makefile
*.dev
# Test binary, built with `go test -c`
*.test
# Output of the go coverage tool, specifically when used with LiteIDE
*.out
# IDE
.idea/*
.vscode/*
.history
golang-github-scylladb-termtables-0.0~git20191203.c4c0b6d/.travis.yml 0000664 0000000 0000000 00000000170 13644002433 0025011 0 ustar 00root root 0000000 0000000 language: go
go:
- 1.6
- 1.7
- tip
script:
- go vet $(go list ./...|grep -v "/vendor/")
- go test -v -race ./...
golang-github-scylladb-termtables-0.0~git20191203.c4c0b6d/LICENSE 0000664 0000000 0000000 00000026136 13644002433 0023717 0 ustar 00root root 0000000 0000000 Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
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golang-github-scylladb-termtables-0.0~git20191203.c4c0b6d/README.md 0000664 0000000 0000000 00000006060 13644002433 0024163 0 ustar 00root root 0000000 0000000 # Termtables
[](https://travis-ci.org/scylladb/termtables)
A [Go](http://golang.org) port of the Ruby library [terminal-tables](https://github.com/visionmedia/terminal-table) for
fast and simple ASCII table generation.
## Installation
```bash
go get github.com/scylladb/termtables
```
## Go Style Documentation
[http://godoc.org/github.com/scylladb/termtables](http://godoc.org/github.com/scylladb/termtables)
## APC Command Line usage
`--markdown` — output a markdown table, e.g. `apc app list --markdown`
`--html` — output an html table, e.g. `apc app list --html`
`--ascii` — output an ascii table, e.g. `apc app list --ascii`
## Basic Usage
```go
package main
import (
"fmt"
"github.com/scylladb/termtables"
)
func main() {
table := termtables.CreateTable()
table.AddHeaders("Name", "Age")
table.AddRow("John", "30")
table.AddRow("Sam", 18)
table.AddRow("Julie", 20.14)
fmt.Println(table.Render())
}
```
Result:
```
+-------+-------+
| Name | Age |
+-------+-------+
| John | 30 |
| Sam | 18 |
| Julie | 20.14 |
+-------+-------+
```
## Advanced Usage
The package function-call `EnableUTF8()` will cause any tables created after
that point to use Unicode box-drawing characters for the table lines.
Calling `EnableUTF8PerLocale()` uses the C library's locale functionality to
determine if the current locale environment variables say that the current
character map is UTF-8. If, and only if, so, then `EnableUTF8()` will be
called.
Calling `SetModeHTML(true)` will cause any tables created after that point
to be emitted in HTML, while `SetModeMarkdown(true)` will trigger Markdown.
Neither should result in changes to later API to get the different results;
the primary intended use-case is extracting the same table, but for
documentation.
The table method `.AddSeparator()` inserts a rule line in the output. This
only applies in normal terminal output mode.
The table method `.AddTitle()` adds a title to the table; in terminal output,
this is an initial row; in HTML, it's a caption. In Markdown, it's a line of
text before the table, prefixed by `Table: `.
The table method `.SetAlign()` takes an alignment and a column number
(indexing starts at 1) and changes all _current_ cells in that column to have
the given alignment. It does not change the alignment of cells added to the
table after this call. Alignment is only stored on a per-cell basis.
## Known Issues
Normal output:
* `.SetAlign()` does not affect headers.
Markdown output mode:
* When emitting Markdown, the column markers are not re-flowed if a vertical
bar is an element of a cell, causing an escape to take place; since Markdown
is often converted to HTML, this only affects text viewing.
* A title in Markdown is not escaped against all possible forms of Markdown
markup (to avoid adding a dependency upon a Markdown library, as supported
syntax can vary).
* Markdown requires headers, so a dummy header will be inserted if needed.
* Table alignment is not reflected in Markdown output.
golang-github-scylladb-termtables-0.0~git20191203.c4c0b6d/cell.go 0000664 0000000 0000000 00000011152 13644002433 0024150 0 ustar 00root root 0000000 0000000 // Copyright 2012 Apcera Inc. All rights reserved.
package termtables
import (
"fmt"
"math"
"regexp"
"strconv"
"strings"
"unicode/utf8"
runewidth "github.com/mattn/go-runewidth"
)
var (
// Must match SGR escape sequence, which is "CSI Pm m", where the Control
// Sequence Introducer (CSI) is "ESC ["; where Pm is "A multiple numeric
// parameter composed of any number of single numeric parameters, separated
// by ; character(s). Individual values for the parameters are listed with
// Ps" and where Ps is A single (usually optional) numeric parameter,
// composed of one of [sic] more digits."
//
// In practice, the end sequence is usually given as \e[0m but reading that
// definition, it's clear that the 0 is optional and some testing confirms
// that it is certainly optional with MacOS Terminal 2.3, so we need to
// support the string \e[m as a terminator too.
colorFilter = regexp.MustCompile(`\033\[(?:\d+(?:;\d+)*)?m`)
)
// A Cell denotes one cell of a table; it spans one row and a variable number
// of columns. A given Cell can only be used at one place in a table; the act
// of adding the Cell to the table mutates it with position information, so
// do not create one "const" Cell to add it multiple times.
type Cell struct {
column int
formattedValue string
alignment *TableAlignment
colSpan int
}
// CreateCell returns a Cell where the content is the supplied value, with the
// optional supplied style (which may be given as nil). The style can include
// a non-zero ColSpan to cause the cell to become column-spanning. Changing
// the style afterwards will not adjust the column-spanning state of the cell
// itself.
func CreateCell(v interface{}, style *CellStyle) *Cell {
return createCell(0, v, style)
}
func createCell(column int, v interface{}, style *CellStyle) *Cell {
cell := &Cell{column: column, formattedValue: renderValue(v), colSpan: 1}
if style != nil {
cell.alignment = &style.Alignment
if style.ColSpan != 0 {
cell.colSpan = style.ColSpan
}
}
return cell
}
// Width returns the width of the content of the cell, measured in runes as best
// as possible considering sophisticated Unicode.
func (c *Cell) Width() int {
return runewidth.StringWidth(filterColorCodes(c.formattedValue))
}
// Filter out terminal bold/color sequences in a string.
// This supports only basic bold/color escape sequences.
func filterColorCodes(s string) string {
return colorFilter.ReplaceAllString(s, "")
}
// Render returns a string representing the content of the cell, together with
// padding (to the widths specified) and handling any alignment.
func (c *Cell) Render(style *renderStyle) (buffer string) {
// if no alignment is set, import the table's default
if c.alignment == nil {
c.alignment = &style.Alignment
}
// left padding
buffer += strings.Repeat(" ", style.PaddingLeft)
// append the main value and handle alignment
buffer += c.alignCell(style)
// right padding
buffer += strings.Repeat(" ", style.PaddingRight)
// this handles escaping for, eg, Markdown, where we don't care about the
// alignment quite as much
if style.replaceContent != nil {
buffer = style.replaceContent(buffer)
}
return buffer
}
func (c *Cell) alignCell(style *renderStyle) string {
buffer := ""
width := style.CellWidth(c.column)
if c.colSpan > 1 {
for i := 1; i < c.colSpan; i++ {
w := style.CellWidth(c.column + i)
if w == 0 {
break
}
width += style.PaddingLeft + w + style.PaddingRight + utf8.RuneCountInString(style.BorderY)
}
}
switch *c.alignment {
default:
buffer += c.formattedValue
if l := width - c.Width(); l > 0 {
buffer += strings.Repeat(" ", l)
}
case AlignLeft:
buffer += c.formattedValue
if l := width - c.Width(); l > 0 {
buffer += strings.Repeat(" ", l)
}
case AlignRight:
if l := width - c.Width(); l > 0 {
buffer += strings.Repeat(" ", l)
}
buffer += c.formattedValue
case AlignCenter:
left, right := 0, 0
if l := width - c.Width(); l > 0 {
lf := float64(l)
left = int(math.Floor(lf / 2))
right = int(math.Ceil(lf / 2))
}
buffer += strings.Repeat(" ", left)
buffer += c.formattedValue
buffer += strings.Repeat(" ", right)
}
return buffer
}
// Format the raw value as a string depending on the type
func renderValue(v interface{}) string {
switch vv := v.(type) {
case string:
return vv
case bool:
return strconv.FormatBool(vv)
case int:
return strconv.Itoa(vv)
case int64:
return strconv.FormatInt(vv, 10)
case uint64:
return strconv.FormatUint(vv, 10)
case float64:
return strconv.FormatFloat(vv, 'f', 2, 64)
case fmt.Stringer:
return vv.String()
}
return fmt.Sprintf("%v", v)
}
golang-github-scylladb-termtables-0.0~git20191203.c4c0b6d/cell_test.go 0000664 0000000 0000000 00000005172 13644002433 0025214 0 ustar 00root root 0000000 0000000 // Copyright 2012-2015 Apcera Inc. All rights reserved.
package termtables
import (
"testing"
)
func TestCellRenderString(t *testing.T) {
style := &renderStyle{TableStyle: TableStyle{}, cellWidths: map[int]int{}}
cell := createCell(0, "foobar", nil)
output := cell.Render(style)
if output != "foobar" {
t.Fatal("Unexpected output:", output)
}
}
func TestCellRenderBool(t *testing.T) {
style := &renderStyle{TableStyle: TableStyle{}, cellWidths: map[int]int{}}
cell := createCell(0, true, nil)
output := cell.Render(style)
if output != "true" {
t.Fatal("Unexpected output:", output)
}
}
func TestCellRenderInteger(t *testing.T) {
style := &renderStyle{TableStyle: TableStyle{}, cellWidths: map[int]int{}}
cell := createCell(0, 12345, nil)
output := cell.Render(style)
if output != "12345" {
t.Fatal("Unexpected output:", output)
}
}
func TestCellRenderFloat(t *testing.T) {
style := &renderStyle{TableStyle: TableStyle{}, cellWidths: map[int]int{}}
cell := createCell(0, 12.345, nil)
output := cell.Render(style)
if output != "12.35" {
t.Fatal("Unexpected output:", output)
}
}
func TestCellRenderPadding(t *testing.T) {
style := &renderStyle{TableStyle: TableStyle{PaddingLeft: 3, PaddingRight: 4}, cellWidths: map[int]int{}}
cell := createCell(0, "foobar", nil)
output := cell.Render(style)
if output != " foobar " {
t.Fatal("Unexpected output:", output)
}
}
type foo struct {
v string
}
func (f *foo) String() string {
return f.v
}
func TestCellRenderStringerStruct(t *testing.T) {
style := &renderStyle{TableStyle: TableStyle{}, cellWidths: map[int]int{}}
cell := createCell(0, &foo{v: "bar"}, nil)
output := cell.Render(style)
if output != "bar" {
t.Fatal("Unexpected output:", output)
}
}
type fooString string
func TestCellRenderGeneric(t *testing.T) {
style := &renderStyle{TableStyle: TableStyle{}, cellWidths: map[int]int{}}
cell := createCell(0, fooString("baz"), nil)
output := cell.Render(style)
if output != "baz" {
t.Fatal("Unexpected output:", output)
}
}
func TestFilterColorCodes(t *testing.T) {
tests := []struct {
in string
out string
}{
{"abc", "abc"},
{"", ""},
{"\033[31m\033[0m", ""},
{"a\033[31mb\033[0mc", "abc"},
{"\033[31mabc\033[0m", "abc"},
{"\033[31mfoo\033[0mbar", "foobar"},
{"\033[31mfoo\033[mbar", "foobar"},
{"\033[31mfoo\033[0;0mbar", "foobar"},
{"\033[31;4mfoo\033[0mbar", "foobar"},
{"\033[31;4;43mfoo\033[0mbar", "foobar"},
}
for _, test := range tests {
got := filterColorCodes(test.in)
if got != test.out {
t.Errorf("Invalid color-code filter result; expected %q but got %q from input %q",
test.out, got, test.in)
}
}
}
golang-github-scylladb-termtables-0.0~git20191203.c4c0b6d/html.go 0000664 0000000 0000000 00000006160 13644002433 0024200 0 ustar 00root root 0000000 0000000 // Copyright 2013 Apcera Inc. All rights reserved.
package termtables
import (
"bytes"
"fmt"
"html"
"strings"
)
type titleStyle int
const (
TitleAsCaption titleStyle = iota
TitleAsThSpan
)
// htmlStyleRules defines attributes which we can use, and might be set on a
// table by accessors, to influence the type of HTML which is output.
type htmlStyleRules struct {
title titleStyle
}
// HTML returns an HTML representations of the contents of one row of a table.
func (r *Row) HTML(tag string, style *renderStyle) string {
attrs := make([]string, len(r.cells))
elems := make([]string, len(r.cells))
for i := range r.cells {
if r.cells[i].alignment != nil {
switch *r.cells[i].alignment {
case AlignLeft:
attrs[i] = " align='left'"
case AlignCenter:
attrs[i] = " align='center'"
case AlignRight:
attrs[i] = " align='right'"
}
}
elems[i] = html.EscapeString(strings.TrimSpace(r.cells[i].Render(style)))
}
// WAG as to max capacity, plus a bit
buf := bytes.NewBuffer(make([]byte, 0, 8192))
buf.WriteString("")
for i := range elems {
fmt.Fprintf(buf, "<%s%s>%s", tag, attrs[i], elems[i], tag)
}
buf.WriteString("
\n")
return buf.String()
}
func generateHtmlTitleRow(title interface{}, t *Table, style *renderStyle) string {
elContent := html.EscapeString(
strings.TrimSpace(CreateCell(t.title, &CellStyle{}).Render(style)),
)
switch style.htmlRules.title {
case TitleAsCaption:
return "" + elContent + "\n"
case TitleAsThSpan:
return fmt.Sprintf("| %s |
|---|
\n",
style.columns, elContent)
default:
return ""
}
}
// RenderHTML returns a string representation of a the table, suitable for
// inclusion as HTML elsewhere. Primary use-case controlling layout style
// is for inclusion into Markdown documents, documenting normal table use.
// Thus we leave the padding in place to have columns align when viewed as
// plain text and rely upon HTML ignoring extra whitespace.
func (t *Table) RenderHTML() (buffer string) {
// elements is already populated with row data
// generate the runtime style
style := createRenderStyle(t)
style.PaddingLeft = 0
style.PaddingRight = 0
// TODO: control CSS styles to suppress border based upon t.Style.SkipBorder
rowsText := make([]string, 0, len(t.elements)+6)
if t.title != nil || t.headers != nil {
rowsText = append(rowsText, "\n")
if t.title != nil {
rowsText = append(rowsText, generateHtmlTitleRow(t.title, t, style))
}
if t.headers != nil {
rowsText = append(rowsText, CreateRow(t.headers).HTML("th", style))
}
rowsText = append(rowsText, "\n")
}
rowsText = append(rowsText, "\n")
// loop over the elements and render them
for i := range t.elements {
if row, ok := t.elements[i].(*Row); ok {
rowsText = append(rowsText, row.HTML("td", style))
} else {
rowsText = append(rowsText, fmt.Sprintf("\n", i))
}
}
rowsText = append(rowsText, "\n")
return "\n" + strings.Join(rowsText, "") + "
\n"
}
golang-github-scylladb-termtables-0.0~git20191203.c4c0b6d/html_test.go 0000664 0000000 0000000 00000013216 13644002433 0025237 0 ustar 00root root 0000000 0000000 // Copyright 2013 Apcera Inc. All rights reserved.
package termtables
import (
"testing"
)
func TestCreateTableHTML(t *testing.T) {
expected := "\n" +
"\n" +
"| Name | Value |
|---|
\n" +
"\n" +
"\n" +
"| hey | you |
\n" +
"| ken | 1234 |
\n" +
"| derek | 3.14 |
\n" +
"| derek too | 3.15 |
\n" +
"\n" +
"
\n"
table := CreateTable()
table.SetModeHTML()
table.AddHeaders("Name", "Value")
table.AddRow("hey", "you")
table.AddRow("ken", 1234)
table.AddRow("derek", 3.14)
table.AddRow("derek too", 3.1456788)
output := table.Render()
if output != expected {
t.Fatal(DisplayFailedOutput(output, expected))
}
}
func TestTableWithHeaderHTML(t *testing.T) {
expected := "\n" +
"\n" +
"Example\n" +
"| Name | Value |
|---|
\n" +
"\n" +
"\n" +
"| hey | you |
\n" +
"| ken | 1234 |
\n" +
"| derek | 3.14 |
\n" +
"| derek too | 3.15 |
\n" +
"\n" +
"
\n"
table := CreateTable()
table.SetModeHTML()
table.AddTitle("Example")
table.AddHeaders("Name", "Value")
table.AddRow("hey", "you")
table.AddRow("ken", 1234)
table.AddRow("derek", 3.14)
table.AddRow("derek too", 3.1456788)
output := table.Render()
if output != expected {
t.Fatal(DisplayFailedOutput(output, expected))
}
}
func TestTableTitleWidthAdjustsHTML(t *testing.T) {
expected := "\n" +
"\n" +
"Example My Foo Bar'd Test\n" +
"| Name | Value |
|---|
\n" +
"\n" +
"\n" +
"| hey | you |
\n" +
"| ken | 1234 |
\n" +
"| derek | 3.14 |
\n" +
"| derek too | 3.15 |
\n" +
"\n" +
"
\n"
table := CreateTable()
table.SetModeHTML()
table.AddTitle("Example My Foo Bar'd Test")
table.AddHeaders("Name", "Value")
table.AddRow("hey", "you")
table.AddRow("ken", 1234)
table.AddRow("derek", 3.14)
table.AddRow("derek too", 3.1456788)
output := table.Render()
if output != expected {
t.Fatal(DisplayFailedOutput(output, expected))
}
}
func TestTableWithNoHeadersHTML(t *testing.T) {
expected := "\n" +
"\n" +
"| hey | you |
\n" +
"| ken | 1234 |
\n" +
"| derek | 3.14 |
\n" +
"| derek too | 3.15 |
\n" +
"\n" +
"
\n"
table := CreateTable()
table.SetModeHTML()
table.AddRow("hey", "you")
table.AddRow("ken", 1234)
table.AddRow("derek", 3.14)
table.AddRow("derek too", 3.1456788)
output := table.Render()
if output != expected {
t.Fatal(DisplayFailedOutput(output, expected))
}
}
func TestTableUnicodeWidthsHTML(t *testing.T) {
expected := "\n" +
"\n" +
"| Name | Cost |
|---|
\n" +
"\n" +
"\n" +
"| Currency | ¤10 |
\n" +
"| US Dollar | $30 |
\n" +
"| Euro | €27 |
\n" +
"| Thai | ฿70 |
\n" +
"\n" +
"
\n"
table := CreateTable()
table.SetModeHTML()
table.AddHeaders("Name", "Cost")
table.AddRow("Currency", "¤10")
table.AddRow("US Dollar", "$30")
table.AddRow("Euro", "€27")
table.AddRow("Thai", "฿70")
output := table.Render()
if output != expected {
t.Fatal(DisplayFailedOutput(output, expected))
}
}
func TestTableWithAlignment(t *testing.T) {
expected := "\n" +
"\n" +
"| Foo | Bar |
|---|
\n" +
"\n" +
"\n" +
"| humpty | dumpty |
\n" +
"| r | <- on right |
\n" +
"\n" +
"
\n"
table := CreateTable()
table.SetModeHTML()
table.AddHeaders("Foo", "Bar")
table.AddRow("humpty", "dumpty")
table.AddRow(CreateCell("r", &CellStyle{Alignment: AlignRight}), "<- on right")
output := table.Render()
if output != expected {
t.Fatal(DisplayFailedOutput(output, expected))
}
}
func TestTableAfterSetAlign(t *testing.T) {
expected := "\n" +
"\n" +
"| Alphabetical | Num |
|---|
\n" +
"\n" +
"\n" +
"| alfa | 1 |
\n" +
"| bravo | 2 |
\n" +
"| charlie | 3 |
\n" +
"\n" +
"
\n"
table := CreateTable()
table.SetModeHTML()
table.AddHeaders("Alphabetical", "Num")
table.AddRow("alfa", 1)
table.AddRow("bravo", 2)
table.AddRow("charlie", 3)
table.SetAlign(AlignRight, 1)
output := table.Render()
if output != expected {
t.Fatal(DisplayFailedOutput(output, expected))
}
}
func TestTableWithAltTitleStyle(t *testing.T) {
expected := "" +
"\n" +
"\n" +
"| Metasyntactic |
|---|
\n" +
"| Foo | Bar | Baz |
|---|
\n" +
"\n" +
"\n" +
"| a | b | c |
\n" +
"| α | β | γ |
\n" +
"\n" +
"
\n"
table := CreateTable()
table.SetModeHTML()
table.SetHTMLStyleTitle(TitleAsThSpan)
table.AddTitle("Metasyntactic")
table.AddHeaders("Foo", "Bar", "Baz")
table.AddRow("a", "b", "c")
table.AddRow("α", "β", "γ")
output := table.Render()
if output != expected {
t.Fatal(DisplayFailedOutput(output, expected))
}
}
golang-github-scylladb-termtables-0.0~git20191203.c4c0b6d/row.go 0000664 0000000 0000000 00000002561 13644002433 0024044 0 ustar 00root root 0000000 0000000 // Copyright 2012 Apcera Inc. All rights reserved.
package termtables
import "strings"
// A Row represents one row of a Table, consisting of some number of Cell
// items.
type Row struct {
cells []*Cell
}
// CreateRow returns a Row where the cells are created as needed to hold each
// item given; each item can be a Cell or content to go into a Cell created
// to hold it.
func CreateRow(items []interface{}) *Row {
row := &Row{cells: []*Cell{}}
for _, item := range items {
row.AddCell(item)
}
return row
}
// AddCell adds one item to a row as a new cell, where the item is either a
// Cell or content to be put into a cell.
func (r *Row) AddCell(item interface{}) {
if c, ok := item.(*Cell); ok {
c.column = len(r.cells)
r.cells = append(r.cells, c)
} else {
r.cells = append(r.cells, createCell(len(r.cells), item, nil))
}
}
// Render returns a string representing the content of one row of a table, where
// the Row contains Cells (not Separators) and the representation includes any
// vertical borders needed.
func (r *Row) Render(style *renderStyle) string {
// pre-render and shove into an array... helps with cleanly adding borders
renderedCells := []string{}
for _, c := range r.cells {
renderedCells = append(renderedCells, c.Render(style))
}
// format final output
return style.BorderY + strings.Join(renderedCells, style.BorderY) + style.BorderY
}
golang-github-scylladb-termtables-0.0~git20191203.c4c0b6d/row_test.go 0000664 0000000 0000000 00000001471 13644002433 0025102 0 ustar 00root root 0000000 0000000 // Copyright 2012-2015 Apcera Inc. All rights reserved.
package termtables
import (
"testing"
)
func TestBasicRowRender(t *testing.T) {
row := CreateRow([]interface{}{"foo", "bar"})
style := &renderStyle{TableStyle: TableStyle{BorderX: "-", BorderY: "|", BorderI: "+",
PaddingLeft: 1, PaddingRight: 1}, cellWidths: map[int]int{0: 3, 1: 3}}
output := row.Render(style)
if output != "| foo | bar |" {
t.Fatal("Unexpected output:", output)
}
}
func TestRowRenderWidthBasedPadding(t *testing.T) {
row := CreateRow([]interface{}{"foo", "bar"})
style := &renderStyle{TableStyle: TableStyle{BorderX: "-", BorderY: "|", BorderI: "+",
PaddingLeft: 1, PaddingRight: 1}, cellWidths: map[int]int{0: 3, 1: 5}}
output := row.Render(style)
if output != "| foo | bar |" {
t.Fatal("Unexpected output:", output)
}
}
golang-github-scylladb-termtables-0.0~git20191203.c4c0b6d/separator.go 0000664 0000000 0000000 00000004042 13644002433 0025231 0 ustar 00root root 0000000 0000000 // Copyright 2012 Apcera Inc. All rights reserved.
package termtables
import "strings"
type lineType int
// These lines are for horizontal rules; these indicate desired styling,
// but simplistic (pure ASCII) markup characters may end up leaving the
// variant lines indistinguishable from LINE_INNER.
const (
// LINE_INNER *must* be the default; where there are vertical lines drawn
// across an inner line, the character at that position should indicate
// that the vertical line goes both up and down from this horizontal line.
LINE_INNER lineType = iota
// LINE_TOP has only descenders
LINE_TOP
// LINE_SUBTOP has only descenders in the middle, but goes both up and
// down at the far left & right edges.
LINE_SUBTOP
// LINE_BOTTOM has only ascenders.
LINE_BOTTOM
)
// A Separator is a horizontal rule line, with associated information which
// indicates where in a table it is, sufficient for simple cases to let
// clean tables be drawn. If a row-spanning cell is created, then this will
// be insufficient: we can get away with hand-waving of "well, it's showing
// where the border would be" but a more capable handling will require
// structure reworking. Patches welcome.
type Separator struct {
where lineType
}
// Render returns the string representation of a horizontal rule line in the
// table.
func (s *Separator) Render(style *renderStyle) string {
// loop over getting dashes
parts := []string{}
for i := 0; i < style.columns; i++ {
w := style.PaddingLeft + style.CellWidth(i) + style.PaddingRight
parts = append(parts, strings.Repeat(style.BorderX, w))
}
switch s.where {
case LINE_TOP:
return style.BorderTopLeft + strings.Join(parts, style.BorderTop) + style.BorderTopRight
case LINE_SUBTOP:
return style.BorderLeft + strings.Join(parts, style.BorderTop) + style.BorderRight
case LINE_BOTTOM:
return style.BorderBottomLeft + strings.Join(parts, style.BorderBottom) + style.BorderBottomRight
case LINE_INNER:
return style.BorderLeft + strings.Join(parts, style.BorderI) + style.BorderRight
}
panic("not reached")
}
golang-github-scylladb-termtables-0.0~git20191203.c4c0b6d/straight_separator.go 0000664 0000000 0000000 00000002205 13644002433 0027135 0 ustar 00root root 0000000 0000000 // Copyright 2012 Apcera Inc. All rights reserved.
package termtables
import (
"strings"
"unicode/utf8"
)
// A StraightSeparator is a horizontal line with associated information about
// what sort of position it takes in the table, so as to control which shapes
// will be used where vertical lines are expected to touch this horizontal
// line.
type StraightSeparator struct {
where lineType
}
// Render returns a string representing this separator, with all border
// crossings appropriately chosen.
func (s *StraightSeparator) Render(style *renderStyle) string {
// loop over getting dashes
width := 0
for i := 0; i < style.columns; i++ {
width += style.PaddingLeft + style.CellWidth(i) + style.PaddingRight + utf8.RuneCountInString(style.BorderI)
}
switch s.where {
case LINE_TOP:
return style.BorderTopLeft + strings.Repeat(style.BorderX, width-1) + style.BorderTopRight
case LINE_INNER, LINE_SUBTOP:
return style.BorderLeft + strings.Repeat(style.BorderX, width-1) + style.BorderRight
case LINE_BOTTOM:
return style.BorderBottomLeft + strings.Repeat(style.BorderX, width-1) + style.BorderBottomRight
}
panic("not reached")
}
golang-github-scylladb-termtables-0.0~git20191203.c4c0b6d/style.go 0000664 0000000 0000000 00000013176 13644002433 0024401 0 ustar 00root root 0000000 0000000 // Copyright 2012-2013 Apcera Inc. All rights reserved.
package termtables
import (
"fmt"
"strings"
"unicode/utf8"
)
type TableAlignment int
// These constants control the alignment which should be used when rendering
// the content of a cell.
const (
AlignLeft = TableAlignment(1)
AlignCenter = TableAlignment(2)
AlignRight = TableAlignment(3)
)
// TableStyle controls styling information for a Table as a whole.
//
// For the Border rules, only X, Y and I are needed, and all have defaults.
// The others will all default to the same as BorderI.
type TableStyle struct {
SkipBorder bool
BorderX string
BorderY string
BorderI string
BorderTop string
BorderBottom string
BorderRight string
BorderLeft string
BorderTopLeft string
BorderTopRight string
BorderBottomLeft string
BorderBottomRight string
PaddingLeft int
PaddingRight int
Width int
Alignment TableAlignment
htmlRules htmlStyleRules
}
// A CellStyle controls all style applicable to one Cell.
type CellStyle struct {
// Alignment indicates the alignment to be used in rendering the content
Alignment TableAlignment
// ColSpan indicates how many columns this Cell is expected to consume.
ColSpan int
}
// DefaultStyle is a TableStyle which can be used to get some simple
// default styling for a table, using ASCII characters for drawing borders.
var DefaultStyle = &TableStyle{
SkipBorder: false,
BorderX: "-", BorderY: "|", BorderI: "+",
PaddingLeft: 1, PaddingRight: 1,
Width: 80,
Alignment: AlignLeft,
// FIXME: the use of a Width here may interact poorly with a changing
// MaxColumns value; we don't set MaxColumns here because the evaluation
// order of a var and an init value adds undesired subtlety.
}
type renderStyle struct {
cellWidths map[int]int
columns int
// used for markdown rendering
replaceContent func(string) string
TableStyle
}
// setUtfBoxStyle changes the border characters to be suitable for use when
// the output stream can render UTF-8 characters.
func (s *TableStyle) setUtfBoxStyle() {
s.BorderX = "─"
s.BorderY = "│"
s.BorderI = "┼"
s.BorderTop = "┬"
s.BorderBottom = "┴"
s.BorderLeft = "├"
s.BorderRight = "┤"
s.BorderTopLeft = "╭"
s.BorderTopRight = "╮"
s.BorderBottomLeft = "╰"
s.BorderBottomRight = "╯"
}
// setAsciiBoxStyle changes the border characters back to their defaults
func (s *TableStyle) setAsciiBoxStyle() {
s.BorderX = "-"
s.BorderY = "|"
s.BorderI = "+"
s.BorderTop, s.BorderBottom, s.BorderLeft, s.BorderRight = "", "", "", ""
s.BorderTopLeft, s.BorderTopRight, s.BorderBottomLeft, s.BorderBottomRight = "", "", "", ""
s.fillStyleRules()
}
// fillStyleRules populates members of the TableStyle box-drawing specification
// with BorderI as the default.
func (s *TableStyle) fillStyleRules() {
if s.BorderTop == "" {
s.BorderTop = s.BorderI
}
if s.BorderBottom == "" {
s.BorderBottom = s.BorderI
}
if s.BorderLeft == "" {
s.BorderLeft = s.BorderI
}
if s.BorderRight == "" {
s.BorderRight = s.BorderI
}
if s.BorderTopLeft == "" {
s.BorderTopLeft = s.BorderI
}
if s.BorderTopRight == "" {
s.BorderTopRight = s.BorderI
}
if s.BorderBottomLeft == "" {
s.BorderBottomLeft = s.BorderI
}
if s.BorderBottomRight == "" {
s.BorderBottomRight = s.BorderI
}
}
func createRenderStyle(table *Table) *renderStyle {
style := &renderStyle{TableStyle: *table.Style, cellWidths: map[int]int{}}
style.TableStyle.fillStyleRules()
if table.outputMode == outputMarkdown {
style.buildReplaceContent(table.Style.BorderY)
}
// FIXME: handle actually defined width condition
// loop over the rows and cells to calculate widths
for _, element := range table.elements {
// skip separators
if _, ok := element.(*Separator); ok {
continue
}
// iterate over cells
if row, ok := element.(*Row); ok {
for i, cell := range row.cells {
// FIXME: need to support sizing with colspan handling
if cell.colSpan > 1 {
continue
}
if style.cellWidths[i] < cell.Width() {
style.cellWidths[i] = cell.Width()
}
}
}
}
style.columns = len(style.cellWidths)
// calculate actual width
width := utf8.RuneCountInString(style.BorderLeft) // start at '1' for left border
internalBorderWidth := utf8.RuneCountInString(style.BorderI)
lastIndex := 0
for i, v := range style.cellWidths {
width += v + style.PaddingLeft + style.PaddingRight + internalBorderWidth
if i > lastIndex {
lastIndex = i
}
}
if internalBorderWidth != utf8.RuneCountInString(style.BorderRight) {
width += utf8.RuneCountInString(style.BorderRight) - internalBorderWidth
}
if table.titleCell != nil {
titleMinWidth := 0 +
table.titleCell.Width() +
utf8.RuneCountInString(style.BorderLeft) +
utf8.RuneCountInString(style.BorderRight) +
style.PaddingLeft +
style.PaddingRight
if width < titleMinWidth {
// minWidth must be set to include padding of the title, as required
style.cellWidths[lastIndex] += (titleMinWidth - width)
width = titleMinWidth
}
}
// right border is covered in loop
style.Width = width
return style
}
// CellWidth returns the width of the cell at the supplied index, where the
// width is the number of tty character-cells required to draw the glyphs.
func (s *renderStyle) CellWidth(i int) int {
return s.cellWidths[i]
}
// buildReplaceContent creates a function closure, with minimal bound lexical
// state, which replaces content
func (s *renderStyle) buildReplaceContent(bad string) {
replacement := fmt.Sprintf("&#x%02x;", bad)
s.replaceContent = func(old string) string {
return strings.Replace(old, bad, replacement, -1)
}
}
golang-github-scylladb-termtables-0.0~git20191203.c4c0b6d/table.go 0000664 0000000 0000000 00000025652 13644002433 0024332 0 ustar 00root root 0000000 0000000 // Copyright 2012-2013 Apcera Inc. All rights reserved.
package termtables
import (
"bytes"
"os"
"regexp"
"runtime"
"strings"
"github.com/scylladb/termtables/term"
)
// MaxColumns represents the maximum number of columns that are available for
// display without wrapping around the right-hand side of the terminal window.
// At program initialization, the value will be automatically set according
// to available sources of information, including the $COLUMNS environment
// variable and, on Unix, tty information.
var MaxColumns = 80
// Element the interface that can draw a representation of the contents of a
// table cell.
type Element interface {
Render(*renderStyle) string
}
type outputMode int
const (
outputTerminal outputMode = iota
outputMarkdown
outputHTML
)
// Open question: should UTF-8 become an output mode? It does require more
// tracking when resetting, if the locale-enabling had been used.
var outputsEnabled struct {
UTF8 bool
HTML bool
Markdown bool
titleStyle titleStyle
}
var defaultOutputMode outputMode = outputTerminal
// Table represents a terminal table. The Style can be directly accessed
// and manipulated; all other access is via methods.
type Table struct {
Style *TableStyle
elements []Element
headers []interface{}
title interface{}
titleCell *Cell
outputMode outputMode
}
// EnableUTF8 will unconditionally enable using UTF-8 box-drawing characters
// for any tables created after this call, as the default style.
func EnableUTF8() {
outputsEnabled.UTF8 = true
}
// SetModeHTML will control whether or not new tables generated will be in HTML
// mode by default; HTML-or-not takes precedence over options which control how
// a terminal output will be rendered, such as whether or not to use UTF8.
// This affects any tables created after this call.
func SetModeHTML(onoff bool) {
outputsEnabled.HTML = onoff
chooseDefaultOutput()
}
// SetModeMarkdown will control whether or not new tables generated will be
// in Markdown mode by default. HTML-mode takes precedence.
func SetModeMarkdown(onoff bool) {
outputsEnabled.Markdown = onoff
chooseDefaultOutput()
}
var utfRe = regexp.MustCompile(`utf\-8|utf8|UTF\-8|UTF8`)
// EnableUTF8PerLocale will use current locale character map information to
// determine if UTF-8 is expected and, if so, is equivalent to EnableUTF8.
func EnableUTF8PerLocale() {
locale := getLocale()
if utfRe.MatchString(locale) {
EnableUTF8()
}
}
// getLocale returns the current locale name.
func getLocale() string {
if runtime.GOOS == "windows" {
// TODO: detect windows locale
return "US-ASCII"
}
return unixLocale()
}
// unixLocale returns the locale by checking the $LC_ALL, $LC_CTYPE, and $LANG
// environment variables. If none of those are set, it returns "US-ASCII".
func unixLocale() string {
for _, env := range []string{"LC_ALL", "LC_CTYPE", "LANG"} {
if locale := os.Getenv(env); locale != "" {
return locale
}
}
return "US-ASCII"
}
// SetHTMLStyleTitle lets an HTML title output mode be chosen.
func SetHTMLStyleTitle(want titleStyle) {
outputsEnabled.titleStyle = want
}
// chooseDefaultOutput sets defaultOutputMode based on priority
// choosing amongst the options which are enabled. Pros: simpler
// encapsulation; cons: setting markdown doesn't disable HTML if
// HTML was previously enabled and was later disabled.
// This seems fairly reasonable.
func chooseDefaultOutput() {
if outputsEnabled.HTML {
defaultOutputMode = outputHTML
} else if outputsEnabled.Markdown {
defaultOutputMode = outputMarkdown
} else {
defaultOutputMode = outputTerminal
}
}
func init() {
// Do not enable UTF-8 per locale by default, breaks tests.
sz, err := term.GetSize()
if err == nil && sz.Columns != 0 {
MaxColumns = sz.Columns
}
}
// CreateTable creates an empty Table using defaults for style.
func CreateTable() *Table {
t := &Table{elements: []Element{}, Style: DefaultStyle}
if outputsEnabled.UTF8 {
t.Style.setUtfBoxStyle()
}
if outputsEnabled.titleStyle != titleStyle(0) {
t.Style.htmlRules.title = outputsEnabled.titleStyle
}
t.outputMode = defaultOutputMode
return t
}
// AddSeparator adds a line to the table content, where the line
// consists of separator characters.
func (t *Table) AddSeparator() {
t.elements = append(t.elements, &Separator{})
}
// AddRow adds the supplied items as cells in one row of the table.
func (t *Table) AddRow(items ...interface{}) *Row {
row := CreateRow(items)
t.elements = append(t.elements, row)
return row
}
// AddTitle supplies a table title, which if present will be rendered as
// one cell across the width of the table, as the first row.
func (t *Table) AddTitle(title interface{}) {
t.title = title
}
// AddHeaders supplies column headers for the table.
func (t *Table) AddHeaders(headers ...interface{}) {
t.headers = append(t.headers, headers...)
}
// SetAlign changes the alignment for elements in a column of the table;
// alignments are stored with each cell, so cells added after a call to
// SetAlign will not pick up the change. Columns are numbered from 1.
func (t *Table) SetAlign(align TableAlignment, columns ...int) {
for i := range t.elements {
row, ok := t.elements[i].(*Row)
if !ok {
continue
}
for _, column := range columns {
if column < 0 || column > len(row.cells) {
continue
}
row.cells[column-1].alignment = &align
}
}
}
// UTF8Box sets the table style to use UTF-8 box-drawing characters,
// overriding all relevant style elements at the time of the call.
func (t *Table) UTF8Box() {
t.Style.setUtfBoxStyle()
}
// SetModeHTML switches this table to be in HTML when rendered; the
// default depends upon whether the package function SetModeHTML() has been
// called, and with what value. This method forces the feature on for this
// table. Turning off involves choosing a different mode, per-table.
func (t *Table) SetModeHTML() {
t.outputMode = outputHTML
}
// SetModeMarkdown switches this table to be in Markdown mode
func (t *Table) SetModeMarkdown() {
t.outputMode = outputMarkdown
}
// SetModeTerminal switches this table to be in terminal mode.
func (t *Table) SetModeTerminal() {
t.outputMode = outputTerminal
}
// SetHTMLStyleTitle lets an HTML output mode be chosen; we should rework this
// into a more generic and extensible API as we clean up termtables.
func (t *Table) SetHTMLStyleTitle(want titleStyle) {
t.Style.htmlRules.title = want
}
// Render returns a string representation of a fully rendered table, drawn
// out for display, with embedded newlines. If this table is in HTML mode,
// then this is equivalent to RenderHTML().
func (t *Table) Render() string {
// Elements is already populated with row data.
switch t.outputMode {
case outputTerminal:
return t.renderTerminal()
case outputMarkdown:
return t.renderMarkdown()
case outputHTML:
return t.RenderHTML()
default:
panic("unknown output mode set")
}
}
// renderTerminal returns a string representation of a fully rendered table,
// drawn out for display, with embedded newlines.
func (t *Table) renderTerminal() string {
// Use a placeholder rather than adding titles/headers to the tables
// elements or else successive calls will compound them.
tt := t.clone()
// Initial top line.
if !tt.Style.SkipBorder {
if tt.title != nil && tt.headers == nil {
tt.elements = append([]Element{&Separator{where: LINE_SUBTOP}}, tt.elements...)
} else if tt.title == nil && tt.headers == nil {
tt.elements = append([]Element{&Separator{where: LINE_TOP}}, tt.elements...)
} else {
tt.elements = append([]Element{&Separator{where: LINE_INNER}}, tt.elements...)
}
}
// If we have headers, include them.
if tt.headers != nil {
ne := make([]Element, 2)
ne[1] = CreateRow(tt.headers)
if tt.title != nil {
ne[0] = &Separator{where: LINE_SUBTOP}
} else {
ne[0] = &Separator{where: LINE_TOP}
}
tt.elements = append(ne, tt.elements...)
}
// If we have a title, write it.
if tt.title != nil {
// Match changes to this into renderMarkdown too.
tt.titleCell = CreateCell(tt.title, &CellStyle{Alignment: AlignCenter, ColSpan: 999})
ne := []Element{
&StraightSeparator{where: LINE_TOP},
CreateRow([]interface{}{tt.titleCell}),
}
tt.elements = append(ne, tt.elements...)
}
// Create a new table from the
// generate the runtime style. Must include all cells being printed.
style := createRenderStyle(tt)
// Loop over the elements and render them.
b := bytes.NewBuffer(nil)
for _, e := range tt.elements {
b.WriteString(e.Render(style))
b.WriteString("\n")
}
// Add bottom line.
if !style.SkipBorder {
b.WriteString((&Separator{where: LINE_BOTTOM}).Render(style) + "\n")
}
return b.String()
}
// renderMarkdown returns a string representation of a table in Markdown
// markup format using GitHub Flavored Markdown's notation (since tables
// are not in the core Markdown spec).
func (t *Table) renderMarkdown() string {
// We need ASCII drawing characters; we need a line after the header;
// *do* need a header! Do not need to markdown-escape contents of
// tables as markdown is ignored in there. Do need to do _something_
// with a '|' character shown as a member of a table.
t.Style.setAsciiBoxStyle()
firstLines := make([]Element, 0, 2)
if t.headers == nil {
initial := createRenderStyle(t)
if initial.columns > 1 {
row := CreateRow([]interface{}{})
for i := 0; i < initial.columns; i++ {
row.AddCell(CreateCell(i+1, &CellStyle{}))
}
}
}
firstLines = append(firstLines, CreateRow(t.headers))
// This is a dummy line, swapped out below.
firstLines = append(firstLines, firstLines[0])
t.elements = append(firstLines, t.elements...)
// Generate the runtime style.
style := createRenderStyle(t)
// We know that the second line is a dummy, we can replace it.
mdRow := CreateRow([]interface{}{})
for i := 0; i < style.columns; i++ {
mdRow.AddCell(CreateCell(strings.Repeat("-", style.cellWidths[i]), &CellStyle{}))
}
t.elements[1] = mdRow
b := bytes.NewBuffer(nil)
// Comes after style is generated, which must come after all width-affecting
// changes are in.
if t.title != nil {
// Markdown doesn't support titles or column spanning; we _should_
// escape the title, but doing that to handle all possible forms of
// markup would require a heavy dependency, so we punt.
b.WriteString("Table: ")
b.WriteString(strings.TrimSpace(CreateCell(t.title, &CellStyle{}).Render(style)))
b.WriteString("\n\n")
}
// Loop over the elements and render them.
for _, e := range t.elements {
b.WriteString(e.Render(style))
b.WriteString("\n")
}
return b.String()
}
// clone returns a copy of the table with the underlying slices being copied;
// the references to the Elements/cells are left as shallow copies.
func (t *Table) clone() *Table {
tt := &Table{outputMode: t.outputMode, Style: t.Style, title: t.title}
if t.headers != nil {
tt.headers = make([]interface{}, len(t.headers))
copy(tt.headers, t.headers)
}
if t.elements != nil {
tt.elements = make([]Element, len(t.elements))
copy(tt.elements, t.elements)
}
return tt
}
golang-github-scylladb-termtables-0.0~git20191203.c4c0b6d/table_test.go 0000664 0000000 0000000 00000040175 13644002433 0025366 0 ustar 00root root 0000000 0000000 // Copyright 2012-2013 Apcera Inc. All rights reserved.
package termtables
import "testing"
func DisplayFailedOutput(actual, expected string) string {
return "Output didn't match expected\n\n" +
"Actual:\n\n" +
actual + "\n" +
"Expected:\n\n" +
expected
}
func checkRendersTo(t *testing.T, table *Table, expected string) {
output := table.Render()
if output != expected {
t.Fatal(DisplayFailedOutput(output, expected))
}
}
func TestCreateTable(t *testing.T) {
expected := "" +
"+-----------+-------+\n" +
"| Name | Value |\n" +
"+-----------+-------+\n" +
"| hey | you |\n" +
"| ken | 1234 |\n" +
"| derek | 3.14 |\n" +
"| derek too | 3.15 |\n" +
"| escaping | rox%% |\n" +
"+-----------+-------+\n"
table := CreateTable()
table.AddHeaders("Name", "Value")
table.AddRow("hey", "you")
table.AddRow("ken", 1234)
table.AddRow("derek", 3.14)
table.AddRow("derek too", 3.1456788)
table.AddRow("escaping", "rox%%")
checkRendersTo(t, table, expected)
}
func TestStyleResets(t *testing.T) {
expected := "" +
"+-----------+-------+\n" +
"| Name | Value |\n" +
"+-----------+-------+\n" +
"| hey | you |\n" +
"| ken | 1234 |\n" +
"| derek | 3.14 |\n" +
"| derek too | 3.15 |\n" +
"+-----------+-------+\n"
table := CreateTable()
table.UTF8Box()
table.Style.setAsciiBoxStyle()
table.AddHeaders("Name", "Value")
table.AddRow("hey", "you")
table.AddRow("ken", 1234)
table.AddRow("derek", 3.14)
table.AddRow("derek too", 3.1456788)
checkRendersTo(t, table, expected)
}
func TestTableWithHeader(t *testing.T) {
expected := "" +
"+-------------------+\n" +
"| Example |\n" +
"+-----------+-------+\n" +
"| Name | Value |\n" +
"+-----------+-------+\n" +
"| hey | you |\n" +
"| ken | 1234 |\n" +
"| derek | 3.14 |\n" +
"| derek too | 3.15 |\n" +
"+-----------+-------+\n"
table := CreateTable()
table.AddTitle("Example")
table.AddHeaders("Name", "Value")
table.AddRow("hey", "you")
table.AddRow("ken", 1234)
table.AddRow("derek", 3.14)
table.AddRow("derek too", 3.1456788)
checkRendersTo(t, table, expected)
}
// TestTableWithHeaderMultipleTimes ensures that printing a table with headers
// multiple times continues to render correctly.
func TestTableWithHeaderMultipleTimes(t *testing.T) {
expected := "" +
"+-------------------+\n" +
"| Example |\n" +
"+-----------+-------+\n" +
"| Name | Value |\n" +
"+-----------+-------+\n" +
"| hey | you |\n" +
"| ken | 1234 |\n" +
"| derek | 3.14 |\n" +
"| derek too | 3.15 |\n" +
"+-----------+-------+\n"
table := CreateTable()
table.AddTitle("Example")
table.AddHeaders("Name", "Value")
table.AddRow("hey", "you")
table.AddRow("ken", 1234)
table.AddRow("derek", 3.14)
table.AddRow("derek too", 3.1456788)
checkRendersTo(t, table, expected)
checkRendersTo(t, table, expected)
}
func TestTableTitleWidthAdjusts(t *testing.T) {
expected := "" +
"+---------------------------+\n" +
"| Example My Foo Bar'd Test |\n" +
"+-----------+---------------+\n" +
"| Name | Value |\n" +
"+-----------+---------------+\n" +
"| hey | you |\n" +
"| ken | 1234 |\n" +
"| derek | 3.14 |\n" +
"| derek too | 3.15 |\n" +
"+-----------+---------------+\n"
table := CreateTable()
table.AddTitle("Example My Foo Bar'd Test")
table.AddHeaders("Name", "Value")
table.AddRow("hey", "you")
table.AddRow("ken", 1234)
table.AddRow("derek", 3.14)
table.AddRow("derek too", 3.1456788)
checkRendersTo(t, table, expected)
}
func TestTableHeaderWidthAdjusts(t *testing.T) {
expected := "" +
"+---------------+---------------------+\n" +
"| Slightly Long | More than 2 columns |\n" +
"+---------------+---------------------+\n" +
"| a | b |\n" +
"+---------------+---------------------+\n"
table := CreateTable()
table.AddHeaders("Slightly Long", "More than 2 columns")
table.AddRow("a", "b")
checkRendersTo(t, table, expected)
}
func TestTableWithNoHeaders(t *testing.T) {
expected := "" +
"+-----------+------+\n" +
"| hey | you |\n" +
"| ken | 1234 |\n" +
"| derek | 3.14 |\n" +
"| derek too | 3.15 |\n" +
"+-----------+------+\n"
table := CreateTable()
table.AddRow("hey", "you")
table.AddRow("ken", 1234)
table.AddRow("derek", 3.14)
table.AddRow("derek too", 3.1456788)
checkRendersTo(t, table, expected)
}
func TestTableUnicodeWidths(t *testing.T) {
expected := "" +
"+-----------+------+\n" +
"| Name | Cost |\n" +
"+-----------+------+\n" +
"| Currency | ¤10 |\n" +
"| US Dollar | $30 |\n" +
"| Euro | €27 |\n" +
"| Thai | ฿70 |\n" +
"+-----------+------+\n"
table := CreateTable()
table.AddHeaders("Name", "Cost")
table.AddRow("Currency", "¤10")
table.AddRow("US Dollar", "$30")
table.AddRow("Euro", "€27")
table.AddRow("Thai", "฿70")
checkRendersTo(t, table, expected)
}
func TestTableInUTF8(t *testing.T) {
expected := "" +
"╭───────────────────╮\n" +
"│ Example │\n" +
"├───────────┬───────┤\n" +
"│ Name │ Value │\n" +
"├───────────┼───────┤\n" +
"│ hey │ you │\n" +
"│ ken │ 1234 │\n" +
"│ derek │ 3.14 │\n" +
"│ derek too │ 3.15 │\n" +
"│ escaping │ rox%% │\n" +
"╰───────────┴───────╯\n"
table := CreateTable()
table.UTF8Box()
table.AddTitle("Example")
table.AddHeaders("Name", "Value")
table.AddRow("hey", "you")
table.AddRow("ken", 1234)
table.AddRow("derek", 3.14)
table.AddRow("derek too", 3.1456788)
table.AddRow("escaping", "rox%%")
checkRendersTo(t, table, expected)
}
func TestTableUnicodeUTF8AndSGR(t *testing.T) {
// at present, this mostly just tests that alignment still works
expected := "" +
"╭───────────────────────╮\n" +
"│ \033[1mFanciness\033[0m │\n" +
"├──────────┬────────────┤\n" +
"│ \033[31mred\033[0m │ \033[32mgreen\033[0m │\n" +
"├──────────┼────────────┤\n" +
"│ plain │ text │\n" +
"│ Καλημέρα │ κόσμε │\n" +
"│ \033[1mvery\033[0m │ \033[4munderlined\033[0m │\n" +
"│ a\033[1mb\033[0mc │ \033[45mmagenta\033[0m │\n" +
"│ \033[31m→\033[0m │ \033[32m←\033[0m │\n" +
"╰──────────┴────────────╯\n"
sgred := func(in string, sgrPm string) string {
return "\033[" + sgrPm + "m" + in + "\033[0m"
}
bold := func(in string) string { return sgred(in, "1") }
table := CreateTable()
table.UTF8Box()
table.AddTitle(bold("Fanciness"))
table.AddHeaders(sgred("red", "31"), sgred("green", "32"))
table.AddRow("plain", "text")
table.AddRow("Καλημέρα", "κόσμε") // from http://plan9.bell-labs.com/sys/doc/utf.html
table.AddRow(bold("very"), sgred("underlined", "4"))
table.AddRow("a"+bold("b")+"c", sgred("magenta", "45"))
table.AddRow(sgred("→", "31"), sgred("←", "32"))
// TODO: in future, if we start detecting presence of SGR sequences, we
// should ensure that the SGR reset is done at the end of the cell content,
// so that SGR doesn't "bleed across" (cells or rows). We would then add
// tests for that here.
//
// Of course, at that point, we'd also want to support automatic HTML
// styling conversion too, so would need a test for that also.
checkRendersTo(t, table, expected)
}
func TestTableInMarkdown(t *testing.T) {
expected := "" +
"Table: Example\n\n" +
"| Name | Value |\n" +
"| ----- | ----- |\n" +
"| hey | you |\n" +
"| a | b | esc |\n" +
"| esc | rox%% |\n"
table := CreateTable()
table.SetModeMarkdown()
table.AddTitle("Example")
table.AddHeaders("Name", "Value")
table.AddRow("hey", "you")
table.AddRow("a | b", "esc")
table.AddRow("esc", "rox%%")
checkRendersTo(t, table, expected)
}
func TestTitleUnicodeWidths(t *testing.T) {
expected := "" +
"+-------+\n" +
"| ← 5 → |\n" +
"+---+---+\n" +
"| a | b |\n" +
"| c | d |\n" +
"| e | 3 |\n" +
"+---+---+\n"
// minimum width for a table of two columns is 9 characters, given
// one space of padding, and non-empty tables.
table := CreateTable()
// We have 4 characters down for left and right columns and padding, so
// a width of 5 for us should match the minimum per the columns
// 5 characters; each arrow is three octets in UTF-8, giving 9 bytes
// so, same in character-count-width, longer in bytes
table.AddTitle("← 5 →")
// a single character per cell, here; use ASCII characters
table.AddRow("a", "b")
table.AddRow("c", "d")
table.AddRow("e", 3)
checkRendersTo(t, table, expected)
}
// We identified two error conditions wherein length wrapping would not correctly
// wrap width when, for instance, in a two-column table, the longest row in the
// right-hand column was not the same as the longest row in the left-hand column.
// This tests that we correctly accumulate the maximum width across all rows of
// the termtable and adjust width accordingly.
func TestTableWidthHandling(t *testing.T) {
expected := "" +
"+-----------------------------------------+\n" +
"| Example... to Fix My Test |\n" +
"+-----------------+-----------------------+\n" +
"| hey foo bar baz | you |\n" +
"| ken | you should write code |\n" +
"| derek | 3.14 |\n" +
"| derek too | 3.15 |\n" +
"+-----------------+-----------------------+\n"
table := CreateTable()
table.AddTitle("Example... to Fix My Test")
table.AddRow("hey foo bar baz", "you")
table.AddRow("ken", "you should write code")
table.AddRow("derek", 3.14)
table.AddRow("derek too", 3.1456788)
output := table.Render()
if output != expected {
t.Fatal(DisplayFailedOutput(output, expected))
}
}
func TestTableWidthHandling_SecondErrorCondition(t *testing.T) {
expected := "" +
"+----------------------------------------+\n" +
"| Example... to Fix My Test |\n" +
"+-----------------+----------------------+\n" +
"| hey foo bar baz | you |\n" +
"| ken | you should sell cod! |\n" +
"| derek | 3.14 |\n" +
"| derek too | 3.15 |\n" +
"+-----------------+----------------------+\n"
table := CreateTable()
table.AddTitle("Example... to Fix My Test")
table.AddRow("hey foo bar baz", "you")
table.AddRow("ken", "you should sell cod!")
table.AddRow("derek", 3.14)
table.AddRow("derek too", 3.1456788)
output := table.Render()
if output != expected {
t.Fatal(DisplayFailedOutput(output, expected))
}
}
func TestTableAlignPostsetting(t *testing.T) {
expected := "" +
"+-----------+-------+----------+\n"+
"| Name | Value | Value 2 |\n"+
"+-----------+-------+----------+\n"+
"| hey | you | man |\n"+
"| ken | 1234 | 4321 |\n"+
"| derek | 3.14 | bob |\n"+
"| derek too | 3.15 | long bob |\n"+
"| escaping | rox%% | :) |\n"+
"+-----------+-------+----------+\n"
table := CreateTable()
table.AddHeaders("Name", "Value", "Value 2")
table.AddRow("hey", "you", "man")
table.AddRow("ken", 1234, 4321)
table.AddRow("derek", 3.14, "bob")
table.AddRow("derek too", 3.1456788, "long bob")
table.AddRow("escaping", "rox%%", ":)")
table.SetAlign(AlignRight, 2, 3)
checkRendersTo(t, table, expected)
}
func TestTableMissingCells(t *testing.T) {
expected := "" +
"+----------+---------+---------+\n" +
"| Name | Value 1 | Value 2 |\n" +
"+----------+---------+---------+\n" +
"| hey | you | person |\n" +
"| ken | 1234 |\n" +
"| escaping | rox%s%% |\n" +
"+----------+---------+---------+\n"
// FIXME: missing extra cells there
table := CreateTable()
table.AddHeaders("Name", "Value 1", "Value 2")
table.AddRow("hey", "you", "person")
table.AddRow("ken", 1234)
table.AddRow("escaping", "rox%s%%")
checkRendersTo(t, table, expected)
}
// We don't yet support combining characters, double-width characters or
// anything to do with estimating a tty-style "character width" for what in
// Unicode is a grapheme cluster. This disabled test shows what we want
// to support, but don't yet.
func TestTableWithCombiningChars(t *testing.T) {
expected := "" +
"+------+---+\n" +
"| noel | 1 |\n" +
"| noël | 2 |\n" +
"| noël | 3 |\n" +
"+------+---+\n"
table := CreateTable()
table.AddRow("noel", "1")
table.AddRow("noe\u0308l", "2") // LATIN SMALL LETTER E + COMBINING DIAERESIS
table.AddRow("noël", "3") // Hex EB; LATIN SMALL LETTER E WITH DIAERESIS
checkRendersTo(t, table, expected)
}
// another unicode length issue
func TestTableWithFullwidthChars(t *testing.T) {
expected := "" +
"+----------+------------+\n" +
"| wide | not really |\n" +
"| ｗｉｄｅ | fullwidth |\n" +
"+----------+------------+\n"
table := CreateTable()
table.AddRow("wide", "not really")
table.AddRow("ｗｉｄｅ", "fullwidth") // FULLWIDTH LATIN SMALL LETTER
checkRendersTo(t, table, expected)
}
// Tests CJK characters using examples given in issue #33. The examples may not
// look like they line up but you can visually confirm its accuracy with a
// fmt.Print.
func TestCJKChars(t *testing.T) {
expected := "" +
"+-------+---------+----------+\n" +
"| KeyID | ValueID | ValueCN |\n" +
"+-------+---------+----------+\n" +
"| 8 | 51 | 精钢 |\n" +
"| 8 | 52 | 鳄鱼皮 |\n" +
"| 8 | 53 | 镀金皮带 |\n" +
"| 8 | 54 | 精钢 |\n" +
"+-------+---------+----------+\n"
table := CreateTable()
table.AddHeaders("KeyID", "ValueID", "ValueCN")
table.AddRow("8", 51, "精钢")
table.AddRow("8", 52, "鳄鱼皮")
table.AddRow("8", 53, "镀金皮带")
table.AddRow("8", 54, "精钢")
checkRendersTo(t, table, expected)
expected2 := "" +
"+--------------------+----------------------+\n" +
"| field | value |\n" +
"+--------------------+----------------------+\n" +
"| GoodsPropertyKeyID | 9 |\n" +
"| MerchantAccountID | 0 |\n" +
"| GoodsCategoryCode | 100001 |\n" +
"| NameCN | 机芯类型 |\n" +
"| NameJP | ムーブメントのタイプ |\n" +
"+--------------------+----------------------+\n"
table = CreateTable()
table.AddHeaders("field", "value")
table.AddRow("GoodsPropertyKeyID", 9)
table.AddRow("MerchantAccountID", 0)
table.AddRow("GoodsCategoryCode", 100001)
table.AddRow("NameCN", "机芯类型")
table.AddRow("NameJP", "ムーブメントのタイプ")
checkRendersTo(t, table, expected2)
}
func TestTableMultipleAddHeader(t *testing.T) {
expected := "" +
"+--------------+--------+-------+\n" +
"| First column | Second | Third |\n" +
"+--------------+--------+-------+\n" +
"| 2 | 3 | 5 |\n" +
"+--------------+--------+-------+\n"
table := CreateTable()
table.AddHeaders("First column", "Second")
table.AddHeaders("Third")
table.AddRow(2, 3, 5)
checkRendersTo(t, table, expected)
}
func createTestTable() *Table {
table := CreateTable()
header := []interface{}{}
for i := 0; i < 50; i++ {
header = append(header, "First Column")
}
table.AddHeaders(header...)
for i := 0; i < 3000; i++ {
row := []interface{}{}
for i := 0; i < 50; i++ {
row = append(row, "First row value")
}
table.AddRow(row...)
}
return table
}
func BenchmarkTableRenderTerminal(b *testing.B) {
table := createTestTable()
table.SetModeTerminal()
b.ResetTimer()
for i := 0; i < b.N; i++ {
table.Render()
}
}
func BenchmarkTableRenderMarkdown(b *testing.B) {
table := createTestTable()
table.SetModeMarkdown()
b.ResetTimer()
for i := 0; i < b.N; i++ {
table.Render()
}
}
func BenchmarkTableRenderHTML(b *testing.B) {
table := createTestTable()
table.SetModeHTML()
b.ResetTimer()
for i := 0; i < b.N; i++ {
table.Render()
}
}
golang-github-scylladb-termtables-0.0~git20191203.c4c0b6d/term/ 0000775 0000000 0000000 00000000000 13644002433 0023651 5 ustar 00root root 0000000 0000000 golang-github-scylladb-termtables-0.0~git20191203.c4c0b6d/term/env.go 0000664 0000000 0000000 00000001677 13644002433 0025003 0 ustar 00root root 0000000 0000000 // Copyright 2013 Apcera Inc. All rights reserved.
package term
import (
"os"
"strconv"
)
// GetEnvWindowSize returns the window Size, as determined by process
// environment; if either LINES or COLUMNS is present, and whichever is
// present is also numeric, the Size will be non-nil. If Size is nil,
// there's insufficient data in environ. If one entry is 0, that means
// that the environment does not include that data. If a value is
// negative, we treat that as an error.
func GetEnvWindowSize() *Size {
lines := os.Getenv("LINES")
columns := os.Getenv("COLUMNS")
if lines == "" && columns == "" {
return nil
}
nLines := 0
nColumns := 0
var err error
if lines != "" {
nLines, err = strconv.Atoi(lines)
if err != nil || nLines < 0 {
return nil
}
}
if columns != "" {
nColumns, err = strconv.Atoi(columns)
if err != nil || nColumns < 0 {
return nil
}
}
return &Size{
Lines: nLines,
Columns: nColumns,
}
}
golang-github-scylladb-termtables-0.0~git20191203.c4c0b6d/term/getsize.go 0000664 0000000 0000000 00000002332 13644002433 0025652 0 ustar 00root root 0000000 0000000 // Copyright 2013 Apcera Inc. All rights reserved.
package term
import (
"os"
)
// Size is the size of a terminal, expressed in character cells, as Lines and
// Columns. This might come from environment variables or OS-dependent
// resources.
type Size struct {
Lines int
Columns int
}
// GetSize will return the terminal window size.
//
// We prefer environ $LINES/$COLUMNS, then fall back to tty-held information.
// We do not support use of termcap/terminfo to derive default size information.
func GetSize() (*Size, error) {
envSize := GetEnvWindowSize()
if envSize != nil && envSize.Lines != 0 && envSize.Columns != 0 {
return envSize, nil
}
fh, err := os.Open("/dev/tty")
if err != nil {
// no tty, no point continuing; we only let the environ
// avoid an error in this case because if someone has faked
// up an environ with LINES/COLUMNS _both_ set, we should let
// them
return nil, err
}
size, err := GetTerminalWindowSize(fh)
if err != nil {
if envSize != nil {
return envSize, nil
}
return nil, err
}
if envSize == nil {
return size, err
}
if envSize.Lines == 0 {
envSize.Lines = size.Lines
}
if envSize.Columns == 0 {
envSize.Columns = size.Columns
}
return envSize, nil
}
golang-github-scylladb-termtables-0.0~git20191203.c4c0b6d/term/sizes_unix.go 0000664 0000000 0000000 00000002254 13644002433 0026403 0 ustar 00root root 0000000 0000000 // Copyright 2013 Apcera Inc. All rights reserved.
// +build !windows
package term
import (
"errors"
"os"
"syscall"
"unsafe"
)
// ErrGetWinsizeFailed indicates that the system call to extract the size of
// a Unix tty from the kernel failed.
var ErrGetWinsizeFailed = errors.New("term: syscall.TIOCGWINSZ failed")
// GetTerminalWindowSize returns the terminal size maintained by the kernel
// for a Unix TTY, passed in as an *os.File. This information can be seen
// with the stty(1) command, and changes in size (eg, terminal emulator
// resized) should trigger a SIGWINCH signal delivery to the foreground process
// group at the time of the change, so a long-running process might reasonably
// watch for SIGWINCH and arrange to re-fetch the size when that happens.
func GetTerminalWindowSize(file *os.File) (*Size, error) {
// Based on source from from golang.org/x/crypto/ssh/terminal/util.go
var dimensions [4]uint16
if _, _, err := syscall.Syscall6(syscall.SYS_IOCTL, file.Fd(), uintptr(syscall.TIOCGWINSZ), uintptr(unsafe.Pointer(&dimensions)), 0, 0, 0); err != 0 {
return nil, err
}
return &Size{
Lines: int(dimensions[0]),
Columns: int(dimensions[1]),
}, nil
}
golang-github-scylladb-termtables-0.0~git20191203.c4c0b6d/term/sizes_windows.go 0000664 0000000 0000000 00000002260 13644002433 0027107 0 ustar 00root root 0000000 0000000 // Copyright 2013 Apcera Inc. All rights reserved.
// +build windows
package term
// Used when we have no other source for getting platform-specific information
// about the terminal sizes available.
import (
"os"
"syscall"
"unsafe"
)
// Based on source from from golang.org/x/crypto/ssh/terminal/util_windows.go
var (
kernel32 = syscall.NewLazyDLL("kernel32.dll")
procGetConsoleScreenBufferInfo = kernel32.NewProc("GetConsoleScreenBufferInfo")
)
type (
short int16
word uint16
coord struct {
x short
y short
}
smallRect struct {
left short
top short
right short
bottom short
}
consoleScreenBufferInfo struct {
size coord
cursorPosition coord
attributes word
window smallRect
maximumWindowSize coord
}
)
// GetTerminalWindowSize returns the width and height of a terminal in Windows.
func GetTerminalWindowSize(file *os.File) (*Size, error) {
var info consoleScreenBufferInfo
_, _, e := syscall.Syscall(procGetConsoleScreenBufferInfo.Addr(), 2, file.Fd(), uintptr(unsafe.Pointer(&info)), 0)
if e != 0 {
return nil, error(e)
}
return &Size{
Lines: int(info.size.y),
Columns: int(info.size.x),
}, nil
}
golang-github-scylladb-termtables-0.0~git20191203.c4c0b6d/term/wrapper.go 0000664 0000000 0000000 00000000522 13644002433 0025657 0 ustar 00root root 0000000 0000000 // Copyright 2013 Apcera Inc. All rights reserved.
// +build ignore
package main
import (
"fmt"
"os"
"github.com/scylladb/termtables/term"
)
func main() {
size, err := term.GetSize()
if err != nil {
fmt.Fprintf(os.Stderr, "failed: %s\n", err)
os.Exit(1)
}
fmt.Printf("Lines %d Columns %d\n", size.Lines, size.Columns)
}