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Stephen McQuay 3 years ago
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vendor/github.com/mattn/go-runewidth/README.mkd View File

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go-runewidth
============

[![Build Status](https://travis-ci.org/mattn/go-runewidth.png?branch=master)](https://travis-ci.org/mattn/go-runewidth)
[![Coverage Status](https://coveralls.io/repos/mattn/go-runewidth/badge.png?branch=HEAD)](https://coveralls.io/r/mattn/go-runewidth?branch=HEAD)
[![GoDoc](https://godoc.org/github.com/mattn/go-runewidth?status.svg)](http://godoc.org/github.com/mattn/go-runewidth)

Provides functions to get fixed width of the character or string.

Usage
-----

```go
runewidth.StringWidth("つのだ☆HIRO") == 12
```


Author
------

Yasuhiro Matsumoto

License
-------

under the MIT License: http://mattn.mit-license.org/2013

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vendor/github.com/mattn/go-runewidth/runewidth.go View File

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package runewidth

var EastAsianWidth = IsEastAsian()
var DefaultCondition = &Condition{EastAsianWidth}

type interval struct {
first rune
last rune
}

var combining = []interval{
{0x0300, 0x036F}, {0x0483, 0x0486}, {0x0488, 0x0489},
{0x0591, 0x05BD}, {0x05BF, 0x05BF}, {0x05C1, 0x05C2},
{0x05C4, 0x05C5}, {0x05C7, 0x05C7}, {0x0600, 0x0603},
{0x0610, 0x0615}, {0x064B, 0x065E}, {0x0670, 0x0670},
{0x06D6, 0x06E4}, {0x06E7, 0x06E8}, {0x06EA, 0x06ED},
{0x070F, 0x070F}, {0x0711, 0x0711}, {0x0730, 0x074A},
{0x07A6, 0x07B0}, {0x07EB, 0x07F3}, {0x0901, 0x0902},
{0x093C, 0x093C}, {0x0941, 0x0948}, {0x094D, 0x094D},
{0x0951, 0x0954}, {0x0962, 0x0963}, {0x0981, 0x0981},
{0x09BC, 0x09BC}, {0x09C1, 0x09C4}, {0x09CD, 0x09CD},
{0x09E2, 0x09E3}, {0x0A01, 0x0A02}, {0x0A3C, 0x0A3C},
{0x0A41, 0x0A42}, {0x0A47, 0x0A48}, {0x0A4B, 0x0A4D},
{0x0A70, 0x0A71}, {0x0A81, 0x0A82}, {0x0ABC, 0x0ABC},
{0x0AC1, 0x0AC5}, {0x0AC7, 0x0AC8}, {0x0ACD, 0x0ACD},
{0x0AE2, 0x0AE3}, {0x0B01, 0x0B01}, {0x0B3C, 0x0B3C},
{0x0B3F, 0x0B3F}, {0x0B41, 0x0B43}, {0x0B4D, 0x0B4D},
{0x0B56, 0x0B56}, {0x0B82, 0x0B82}, {0x0BC0, 0x0BC0},
{0x0BCD, 0x0BCD}, {0x0C3E, 0x0C40}, {0x0C46, 0x0C48},
{0x0C4A, 0x0C4D}, {0x0C55, 0x0C56}, {0x0CBC, 0x0CBC},
{0x0CBF, 0x0CBF}, {0x0CC6, 0x0CC6}, {0x0CCC, 0x0CCD},
{0x0CE2, 0x0CE3}, {0x0D41, 0x0D43}, {0x0D4D, 0x0D4D},
{0x0DCA, 0x0DCA}, {0x0DD2, 0x0DD4}, {0x0DD6, 0x0DD6},
{0x0E31, 0x0E31}, {0x0E34, 0x0E3A}, {0x0E47, 0x0E4E},
{0x0EB1, 0x0EB1}, {0x0EB4, 0x0EB9}, {0x0EBB, 0x0EBC},
{0x0EC8, 0x0ECD}, {0x0F18, 0x0F19}, {0x0F35, 0x0F35},
{0x0F37, 0x0F37}, {0x0F39, 0x0F39}, {0x0F71, 0x0F7E},
{0x0F80, 0x0F84}, {0x0F86, 0x0F87}, {0x0F90, 0x0F97},
{0x0F99, 0x0FBC}, {0x0FC6, 0x0FC6}, {0x102D, 0x1030},
{0x1032, 0x1032}, {0x1036, 0x1037}, {0x1039, 0x1039},
{0x1058, 0x1059}, {0x1160, 0x11FF}, {0x135F, 0x135F},
{0x1712, 0x1714}, {0x1732, 0x1734}, {0x1752, 0x1753},
{0x1772, 0x1773}, {0x17B4, 0x17B5}, {0x17B7, 0x17BD},
{0x17C6, 0x17C6}, {0x17C9, 0x17D3}, {0x17DD, 0x17DD},
{0x180B, 0x180D}, {0x18A9, 0x18A9}, {0x1920, 0x1922},
{0x1927, 0x1928}, {0x1932, 0x1932}, {0x1939, 0x193B},
{0x1A17, 0x1A18}, {0x1B00, 0x1B03}, {0x1B34, 0x1B34},
{0x1B36, 0x1B3A}, {0x1B3C, 0x1B3C}, {0x1B42, 0x1B42},
{0x1B6B, 0x1B73}, {0x1DC0, 0x1DCA}, {0x1DFE, 0x1DFF},
{0x200B, 0x200F}, {0x202A, 0x202E}, {0x2060, 0x2063},
{0x206A, 0x206F}, {0x20D0, 0x20EF}, {0x302A, 0x302F},
{0x3099, 0x309A}, {0xA806, 0xA806}, {0xA80B, 0xA80B},
{0xA825, 0xA826}, {0xFB1E, 0xFB1E}, {0xFE00, 0xFE0F},
{0xFE20, 0xFE23}, {0xFEFF, 0xFEFF}, {0xFFF9, 0xFFFB},
{0x10A01, 0x10A03}, {0x10A05, 0x10A06}, {0x10A0C, 0x10A0F},
{0x10A38, 0x10A3A}, {0x10A3F, 0x10A3F}, {0x1D167, 0x1D169},
{0x1D173, 0x1D182}, {0x1D185, 0x1D18B}, {0x1D1AA, 0x1D1AD},
{0x1D242, 0x1D244}, {0xE0001, 0xE0001}, {0xE0020, 0xE007F},
{0xE0100, 0xE01EF},
}

type ctype int

const (
narrow ctype = iota
ambiguous
wide
halfwidth
fullwidth
neutral
)

type intervalType struct {
first rune
last rune
ctype ctype
}

var ctypes = []intervalType{
{0x0020, 0x007E, narrow},
{0x00A1, 0x00A1, ambiguous},
{0x00A2, 0x00A3, narrow},
{0x00A4, 0x00A4, ambiguous},
{0x00A5, 0x00A6, narrow},
{0x00A7, 0x00A8, ambiguous},
{0x00AA, 0x00AA, ambiguous},
{0x00AC, 0x00AC, narrow},
{0x00AD, 0x00AE, ambiguous},
{0x00AF, 0x00AF, narrow},
{0x00B0, 0x00B4, ambiguous},
{0x00B6, 0x00BA, ambiguous},
{0x00BC, 0x00BF, ambiguous},
{0x00C6, 0x00C6, ambiguous},
{0x00D0, 0x00D0, ambiguous},
{0x00D7, 0x00D8, ambiguous},
{0x00DE, 0x00E1, ambiguous},
{0x00E6, 0x00E6, ambiguous},
{0x00E8, 0x00EA, ambiguous},
{0x00EC, 0x00ED, ambiguous},
{0x00F0, 0x00F0, ambiguous},
{0x00F2, 0x00F3, ambiguous},
{0x00F7, 0x00FA, ambiguous},
{0x00FC, 0x00FC, ambiguous},
{0x00FE, 0x00FE, ambiguous},
{0x0101, 0x0101, ambiguous},
{0x0111, 0x0111, ambiguous},
{0x0113, 0x0113, ambiguous},
{0x011B, 0x011B, ambiguous},
{0x0126, 0x0127, ambiguous},
{0x012B, 0x012B, ambiguous},
{0x0131, 0x0133, ambiguous},
{0x0138, 0x0138, ambiguous},
{0x013F, 0x0142, ambiguous},
{0x0144, 0x0144, ambiguous},
{0x0148, 0x014B, ambiguous},
{0x014D, 0x014D, ambiguous},
{0x0152, 0x0153, ambiguous},
{0x0166, 0x0167, ambiguous},
{0x016B, 0x016B, ambiguous},
{0x01CE, 0x01CE, ambiguous},
{0x01D0, 0x01D0, ambiguous},
{0x01D2, 0x01D2, ambiguous},
{0x01D4, 0x01D4, ambiguous},
{0x01D6, 0x01D6, ambiguous},
{0x01D8, 0x01D8, ambiguous},
{0x01DA, 0x01DA, ambiguous},
{0x01DC, 0x01DC, ambiguous},
{0x0251, 0x0251, ambiguous},
{0x0261, 0x0261, ambiguous},
{0x02C4, 0x02C4, ambiguous},
{0x02C7, 0x02C7, ambiguous},
{0x02C9, 0x02CB, ambiguous},
{0x02CD, 0x02CD, ambiguous},
{0x02D0, 0x02D0, ambiguous},
{0x02D8, 0x02DB, ambiguous},
{0x02DD, 0x02DD, ambiguous},
{0x02DF, 0x02DF, ambiguous},
{0x0300, 0x036F, ambiguous},
{0x0391, 0x03A2, ambiguous},
{0x03A3, 0x03A9, ambiguous},
{0x03B1, 0x03C1, ambiguous},
{0x03C3, 0x03C9, ambiguous},
{0x0401, 0x0401, ambiguous},
{0x0410, 0x044F, ambiguous},
{0x0451, 0x0451, ambiguous},
{0x1100, 0x115F, wide},
{0x2010, 0x2010, ambiguous},
{0x2013, 0x2016, ambiguous},
{0x2018, 0x2019, ambiguous},
{0x201C, 0x201D, ambiguous},
{0x2020, 0x2022, ambiguous},
{0x2024, 0x2027, ambiguous},
{0x2030, 0x2030, ambiguous},
{0x2032, 0x2033, ambiguous},
{0x2035, 0x2035, ambiguous},
{0x203B, 0x203B, ambiguous},
{0x203E, 0x203E, ambiguous},
{0x2074, 0x2074, ambiguous},
{0x207F, 0x207F, ambiguous},
{0x2081, 0x2084, ambiguous},
{0x20A9, 0x20A9, halfwidth},
{0x20AC, 0x20AC, ambiguous},
{0x2103, 0x2103, ambiguous},
{0x2105, 0x2105, ambiguous},
{0x2109, 0x2109, ambiguous},
{0x2113, 0x2113, ambiguous},
{0x2116, 0x2116, ambiguous},
{0x2121, 0x2122, ambiguous},
{0x2126, 0x2126, ambiguous},
{0x212B, 0x212B, ambiguous},
{0x2153, 0x2154, ambiguous},
{0x215B, 0x215E, ambiguous},
{0x2160, 0x216B, ambiguous},
{0x2170, 0x2179, ambiguous},
{0x2189, 0x218A, ambiguous},
{0x2190, 0x2199, ambiguous},
{0x21B8, 0x21B9, ambiguous},
{0x21D2, 0x21D2, ambiguous},
{0x21D4, 0x21D4, ambiguous},
{0x21E7, 0x21E7, ambiguous},
{0x2200, 0x2200, ambiguous},
{0x2202, 0x2203, ambiguous},
{0x2207, 0x2208, ambiguous},
{0x220B, 0x220B, ambiguous},
{0x220F, 0x220F, ambiguous},
{0x2211, 0x2211, ambiguous},
{0x2215, 0x2215, ambiguous},
{0x221A, 0x221A, ambiguous},
{0x221D, 0x2220, ambiguous},
{0x2223, 0x2223, ambiguous},
{0x2225, 0x2225, ambiguous},
{0x2227, 0x222C, ambiguous},
{0x222E, 0x222E, ambiguous},
{0x2234, 0x2237, ambiguous},
{0x223C, 0x223D, ambiguous},
{0x2248, 0x2248, ambiguous},
{0x224C, 0x224C, ambiguous},
{0x2252, 0x2252, ambiguous},
{0x2260, 0x2261, ambiguous},
{0x2264, 0x2267, ambiguous},
{0x226A, 0x226B, ambiguous},
{0x226E, 0x226F, ambiguous},
{0x2282, 0x2283, ambiguous},
{0x2286, 0x2287, ambiguous},
{0x2295, 0x2295, ambiguous},
{0x2299, 0x2299, ambiguous},
{0x22A5, 0x22A5, ambiguous},
{0x22BF, 0x22BF, ambiguous},
{0x2312, 0x2312, ambiguous},
{0x2329, 0x232A, wide},
{0x2460, 0x24E9, ambiguous},
{0x24EB, 0x254B, ambiguous},
{0x2550, 0x2573, ambiguous},
{0x2580, 0x258F, ambiguous},
{0x2592, 0x2595, ambiguous},
{0x25A0, 0x25A1, ambiguous},
{0x25A3, 0x25A9, ambiguous},
{0x25B2, 0x25B3, ambiguous},
{0x25B6, 0x25B7, ambiguous},
{0x25BC, 0x25BD, ambiguous},
{0x25C0, 0x25C1, ambiguous},
{0x25C6, 0x25C8, ambiguous},
{0x25CB, 0x25CB, ambiguous},
{0x25CE, 0x25D1, ambiguous},
{0x25E2, 0x25E5, ambiguous},
{0x25EF, 0x25EF, ambiguous},
{0x2605, 0x2606, ambiguous},
{0x2609, 0x2609, ambiguous},
{0x260E, 0x260F, ambiguous},
{0x2614, 0x2615, ambiguous},
{0x261C, 0x261C, ambiguous},
{0x261E, 0x261E, ambiguous},
{0x2640, 0x2640, ambiguous},
{0x2642, 0x2642, ambiguous},
{0x2660, 0x2661, ambiguous},
{0x2663, 0x2665, ambiguous},
{0x2667, 0x266A, ambiguous},
{0x266C, 0x266D, ambiguous},
{0x266F, 0x266F, ambiguous},
{0x269E, 0x269F, ambiguous},
{0x26BE, 0x26BF, ambiguous},
{0x26C4, 0x26CD, ambiguous},
{0x26CF, 0x26E1, ambiguous},
{0x26E3, 0x26E3, ambiguous},
{0x26E8, 0x26FF, ambiguous},
{0x273D, 0x273D, ambiguous},
{0x2757, 0x2757, ambiguous},
{0x2776, 0x277F, ambiguous},
{0x27E6, 0x27ED, narrow},
{0x2985, 0x2986, narrow},
{0x2B55, 0x2B59, ambiguous},
{0x2E80, 0x2E9A, wide},
{0x2E9B, 0x2EF4, wide},
{0x2F00, 0x2FD6, wide},
{0x2FF0, 0x2FFC, wide},
{0x3000, 0x3000, fullwidth},
{0x3001, 0x303E, wide},
{0x3041, 0x3097, wide},
{0x3099, 0x3100, wide},
{0x3105, 0x312E, wide},
{0x3131, 0x318F, wide},
{0x3190, 0x31BB, wide},
{0x31C0, 0x31E4, wide},
{0x31F0, 0x321F, wide},
{0x3220, 0x3247, wide},
{0x3248, 0x324F, ambiguous},
{0x3250, 0x32FF, wide},
{0x3300, 0x4DBF, wide},
{0x4E00, 0xA48D, wide},
{0xA490, 0xA4C7, wide},
{0xA960, 0xA97D, wide},
{0xAC00, 0xD7A4, wide},
{0xE000, 0xF8FF, ambiguous},
{0xF900, 0xFAFF, wide},
{0xFE00, 0xFE0F, ambiguous},
{0xFE10, 0xFE1A, wide},
{0xFE30, 0xFE53, wide},
{0xFE54, 0xFE67, wide},
{0xFE68, 0xFE6C, wide},
{0xFF01, 0xFF60, fullwidth},
{0xFF61, 0xFFBF, halfwidth},
{0xFFC2, 0xFFC8, halfwidth},
{0xFFCA, 0xFFD0, halfwidth},
{0xFFD2, 0xFFD8, halfwidth},
{0xFFDA, 0xFFDD, halfwidth},
{0xFFE0, 0xFFE7, fullwidth},
{0xFFE8, 0xFFEF, halfwidth},
{0xFFFD, 0xFFFE, ambiguous},
{0x1B000, 0x1B002, wide},
{0x1F100, 0x1F10A, ambiguous},
{0x1F110, 0x1F12D, ambiguous},
{0x1F130, 0x1F169, ambiguous},
{0x1F170, 0x1F19B, ambiguous},
{0x1F200, 0x1F203, wide},
{0x1F210, 0x1F23B, wide},
{0x1F240, 0x1F249, wide},
{0x1F250, 0x1F252, wide},
{0x20000, 0x2FFFE, wide},
{0x30000, 0x3FFFE, wide},
{0xE0100, 0xE01F0, ambiguous},
{0xF0000, 0xFFFFD, ambiguous},
{0x100000, 0x10FFFE, ambiguous},
}

type Condition struct {
EastAsianWidth bool
}

func NewCondition() *Condition {
return &Condition{EastAsianWidth}
}

// RuneWidth returns the number of cells in r.
// See http://www.unicode.org/reports/tr11/
func (c *Condition) RuneWidth(r rune) int {
if r == 0 {
return 0
}
if r < 32 || (r >= 0x7f && r < 0xa0) {
return 1
}
for _, iv := range combining {
if iv.first <= r && r <= iv.last {
return 0
}
}

if c.EastAsianWidth && IsAmbiguousWidth(r) {
return 2
}

if r >= 0x1100 &&
(r <= 0x115f || r == 0x2329 || r == 0x232a ||
(r >= 0x2e80 && r <= 0xa4cf && r != 0x303f) ||
(r >= 0xac00 && r <= 0xd7a3) ||
(r >= 0xf900 && r <= 0xfaff) ||
(r >= 0xfe30 && r <= 0xfe6f) ||
(r >= 0xff00 && r <= 0xff60) ||
(r >= 0xffe0 && r <= 0xffe6) ||
(r >= 0x20000 && r <= 0x2fffd) ||
(r >= 0x30000 && r <= 0x3fffd)) {
return 2
}
return 1
}

func (c *Condition) StringWidth(s string) (width int) {
for _, r := range []rune(s) {
width += c.RuneWidth(r)
}
return width
}

func (c *Condition) Truncate(s string, w int, tail string) string {
if c.StringWidth(s) <= w {
return s
}
r := []rune(s)
tw := c.StringWidth(tail)
w -= tw
width := 0
i := 0
for ; i < len(r); i++ {
cw := c.RuneWidth(r[i])
if width+cw > w {
break
}
width += cw
}
return string(r[0:i]) + tail
}

func (c *Condition) Wrap(s string, w int) string {
width := 0
out := ""
for _, r := range []rune(s) {
cw := RuneWidth(r)
if r == '\n' {
out += string(r)
width = 0
continue
} else if width+cw > w {
out += "\n"
width = 0
out += string(r)
width += cw
continue
}
out += string(r)
width += cw
}
return out
}

func (c *Condition) FillLeft(s string, w int) string {
width := c.StringWidth(s)
count := w - width
if count > 0 {
b := make([]byte, count)
for i := range b {
b[i] = ' '
}
return string(b) + s
}
return s
}

func (c *Condition) FillRight(s string, w int) string {
width := c.StringWidth(s)
count := w - width
if count > 0 {
b := make([]byte, count)
for i := range b {
b[i] = ' '
}
return s + string(b)
}
return s
}

// RuneWidth returns the number of cells in r.
// See http://www.unicode.org/reports/tr11/
func RuneWidth(r rune) int {
return DefaultCondition.RuneWidth(r)
}

func ct(r rune) ctype {
for _, iv := range ctypes {
if iv.first <= r && r <= iv.last {
return iv.ctype
}
}
return neutral
}

// IsAmbiguousWidth returns whether is ambiguous width or not.
func IsAmbiguousWidth(r rune) bool {
return ct(r) == ambiguous
}

// IsAmbiguousWidth returns whether is ambiguous width or not.
func IsNeutralWidth(r rune) bool {
return ct(r) == neutral
}

func StringWidth(s string) (width int) {
return DefaultCondition.StringWidth(s)
}

func Truncate(s string, w int, tail string) string {
return DefaultCondition.Truncate(s, w, tail)
}

func Wrap(s string, w int) string {
return DefaultCondition.Wrap(s, w)
}

func FillLeft(s string, w int) string {
return DefaultCondition.FillLeft(s, w)
}

func FillRight(s string, w int) string {
return DefaultCondition.FillRight(s, w)
}

+ 8
- 0
vendor/github.com/mattn/go-runewidth/runewidth_js.go View File

@@ -0,0 +1,8 @@
// +build js

package runewidth

func IsEastAsian() bool {
// TODO: Implement this for the web. Detect east asian in a compatible way, and return true.
return false
}

+ 69
- 0
vendor/github.com/mattn/go-runewidth/runewidth_posix.go View File

@@ -0,0 +1,69 @@
// +build !windows,!js

package runewidth

import (
"os"
"regexp"
"strings"
)

var reLoc = regexp.MustCompile(`^[a-z][a-z][a-z]?(?:_[A-Z][A-Z])?\.(.+)`)

func IsEastAsian() bool {
locale := os.Getenv("LC_CTYPE")
if locale == "" {
locale = os.Getenv("LANG")
}

// ignore C locale
if locale == "POSIX" || locale == "C" {
return false
}
if len(locale) > 1 && locale[0] == 'C' && (locale[1] == '.' || locale[1] == '-') {
return false
}

charset := strings.ToLower(locale)
r := reLoc.FindStringSubmatch(locale)
if len(r) == 2 {
charset = strings.ToLower(r[1])
}

if strings.HasSuffix(charset, "@cjk_narrow") {
return false
}

for pos, b := range []byte(charset) {
if b == '@' {
charset = charset[:pos]
break
}
}

mbc_max := 1
switch charset {
case "utf-8", "utf8":
mbc_max = 6
case "jis":
mbc_max = 8
case "eucjp":
mbc_max = 3
case "euckr", "euccn":
mbc_max = 2
case "sjis", "cp932", "cp51932", "cp936", "cp949", "cp950":
mbc_max = 2
case "big5":
mbc_max = 2
case "gbk", "gb2312":
mbc_max = 2
}

if mbc_max > 1 && (charset[0] != 'u' ||
strings.HasPrefix(locale, "ja") ||
strings.HasPrefix(locale, "ko") ||
strings.HasPrefix(locale, "zh")) {
return true
}
return false
}

+ 229
- 0
vendor/github.com/mattn/go-runewidth/runewidth_test.go View File

@@ -0,0 +1,229 @@
package runewidth

import (
"testing"
)

var runewidthtests = []struct {
in rune
out int
}{
{'世', 2},
{'界', 2},
{'セ', 1},
{'カ', 1},
{'イ', 1},
{'☆', 2}, // double width in ambiguous
{'\x00', 0},
{'\x01', 1},
{'\u0300', 0},
}

func TestRuneWidth(t *testing.T) {
c := NewCondition()
c.EastAsianWidth = true
for _, tt := range runewidthtests {
if out := c.RuneWidth(tt.in); out != tt.out {
t.Errorf("Width(%q) = %q, want %q", tt.in, out, tt.out)
}
}
}

var isambiguouswidthtests = []struct {
in rune
out bool
}{
{'世', false},
{'■', true},
{'界', false},
{'○', true},
{'㈱', false},
{'①', true},
{'②', true},
{'③', true},
{'④', true},
{'⑤', true},
{'⑥', true},
{'⑦', true},
{'⑧', true},
{'⑨', true},
{'⑩', true},
{'⑪', true},
{'⑫', true},
{'⑬', true},
{'⑭', true},
{'⑮', true},
{'⑯', true},
{'⑰', true},
{'⑱', true},
{'⑲', true},
{'⑳', true},
{'☆', true},
}

func TestIsAmbiguousWidth(t *testing.T) {
for _, tt := range isambiguouswidthtests {
if out := IsAmbiguousWidth(tt.in); out != tt.out {
t.Errorf("IsAmbiguousWidth(%q) = %q, want %q", tt.in, out, tt.out)
}
}
}

var stringwidthtests = []struct {
in string
out int
}{
{"■㈱の世界①", 12},
{"スター☆", 8},
}

func TestStringWidth(t *testing.T) {
c := NewCondition()
c.EastAsianWidth = true
for _, tt := range stringwidthtests {
if out := c.StringWidth(tt.in); out != tt.out {
t.Errorf("StringWidth(%q) = %q, want %q", tt.in, out, tt.out)
}
}
}

func TestStringWidthInvalid(t *testing.T) {
s := "こんにちわ\x00世界"
if out := StringWidth(s); out != 14 {
t.Errorf("StringWidth(%q) = %q, want %q", s, out, 14)
}
}

func TestTruncateSmaller(t *testing.T) {
s := "あいうえお"
expected := "あいうえお"

if out := Truncate(s, 10, "..."); out != expected {
t.Errorf("Truncate(%q) = %q, want %q", s, out, expected)
}
}

func TestTruncate(t *testing.T) {
s := "あいうえおあいうえおえおおおおおおおおおおおおおおおおおおおおおおおおおおおおおお"
expected := "あいうえおあいうえおえおおおおおおおおおおおおおおおおおおおおおおおおおおお..."

out := Truncate(s, 80, "...")
if out != expected {
t.Errorf("Truncate(%q) = %q, want %q", s, out, expected)
}
width := StringWidth(out)
if width != 79 {
t.Errorf("width of Truncate(%q) should be %d, but %d", s, 79, width)
}
}

func TestTruncateFit(t *testing.T) {
s := "aあいうえおあいうえおえおおおおおおおおおおおおおおおおおおおおおおおおおおおおおお"
expected := "aあいうえおあいうえおえおおおおおおおおおおおおおおおおおおおおおおおおおおお..."

out := Truncate(s, 80, "...")
if out != expected {
t.Errorf("Truncate(%q) = %q, want %q", s, out, expected)
}
width := StringWidth(out)
if width != 80 {
t.Errorf("width of Truncate(%q) should be %d, but %d", s, 80, width)
}
}

func TestTruncateJustFit(t *testing.T) {
s := "あいうえおあいうえおえおおおおおおおおおおおおおおおおおおおおおおおおおおおおお"
expected := "あいうえおあいうえおえおおおおおおおおおおおおおおおおおおおおおおおおおおおおお"

out := Truncate(s, 80, "...")
if out != expected {
t.Errorf("Truncate(%q) = %q, want %q", s, out, expected)
}
width := StringWidth(out)
if width != 80 {
t.Errorf("width of Truncate(%q) should be %d, but %d", s, 80, width)
}
}

func TestWrap(t *testing.T) {
s := `東京特許許可局局長はよく柿喰う客だ/東京特許許可局局長はよく柿喰う客だ
123456789012345678901234567890

END`
expected := `東京特許許可局局長はよく柿喰う
客だ/東京特許許可局局長はよく
柿喰う客だ
123456789012345678901234567890

END`

if out := Wrap(s, 30); out != expected {
t.Errorf("Wrap(%q) = %q, want %q", s, out, expected)
}
}

func TestTruncateNoNeeded(t *testing.T) {
s := "あいうえおあい"
expected := "あいうえおあい"

if out := Truncate(s, 80, "..."); out != expected {
t.Errorf("Truncate(%q) = %q, want %q", s, out, expected)
}
}

var isneutralwidthtests = []struct {
in rune
out bool
}{
{'→', false},
{'┊', false},
{'┈', false},
{'~', false},
{'└', false},
{'⣀', true},
{'⣀', true},
}

func TestIsNeutralWidth(t *testing.T) {
for _, tt := range isneutralwidthtests {
if out := IsNeutralWidth(tt.in); out != tt.out {
t.Errorf("IsNeutralWidth(%q) = %q, want %q", tt.in, out, tt.out)
}
}
}

func TestFillLeft(t *testing.T) {
s := "あxいうえお"
expected := " あxいうえお"

if out := FillLeft(s, 15); out != expected {
t.Errorf("FillLeft(%q) = %q, want %q", s, out, expected)
}
}

func TestFillLeftFit(t *testing.T) {
s := "あいうえお"
expected := "あいうえお"

if out := FillLeft(s, 10); out != expected {
t.Errorf("FillLeft(%q) = %q, want %q", s, out, expected)
}
}

func TestFillRight(t *testing.T) {
s := "あxいうえお"
expected := "あxいうえお "

if out := FillRight(s, 15); out != expected {
t.Errorf("FillRight(%q) = %q, want %q", s, out, expected)
}
}

func TestFillRightFit(t *testing.T) {
s := "あいうえお"
expected := "あいうえお"

if out := FillRight(s, 10); out != expected {
t.Errorf("FillRight(%q) = %q, want %q", s, out, expected)
}
}

+ 24
- 0
vendor/github.com/mattn/go-runewidth/runewidth_windows.go View File

@@ -0,0 +1,24 @@
package runewidth

import (
"syscall"
)

var (
kernel32 = syscall.NewLazyDLL("kernel32")
procGetConsoleOutputCP = kernel32.NewProc("GetConsoleOutputCP")
)

func IsEastAsian() bool {
r1, _, _ := procGetConsoleOutputCP.Call()
if r1 == 0 {
return false
}

switch int(r1) {
case 932, 51932, 936, 949, 950:
return true
}

return false
}

+ 4
- 0
vendor/github.com/nsf/termbox-go/AUTHORS View File

@@ -0,0 +1,4 @@
# Please keep this file sorted.

Georg Reinke <guelfey@googlemail.com>
nsf <no.smile.face@gmail.com>

+ 19
- 0
vendor/github.com/nsf/termbox-go/LICENSE View File

@@ -0,0 +1,19 @@
Copyright (C) 2012 termbox-go authors

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

+ 25
- 0
vendor/github.com/nsf/termbox-go/README.md View File

@@ -0,0 +1,25 @@
## Termbox
Termbox is a library that provides a minimalistic API which allows the programmer to write text-based user interfaces. The library is crossplatform and has both terminal-based implementations on *nix operating systems and a winapi console based implementation for windows operating systems. The basic idea is an abstraction of the greatest common subset of features available on all major terminals and other terminal-like APIs in a minimalistic fashion. Small API means it is easy to implement, test, maintain and learn it, that's what makes the termbox a distinct library in its area.

### Installation
Install and update this go package with `go get -u github.com/nsf/termbox-go`

### Examples
For examples of what can be done take a look at demos in the _demos directory. You can try them with go run: `go run _demos/keyboard.go`

There are also some interesting projects using termbox-go:
- [godit](https://github.com/nsf/godit) is an emacsish lightweight text editor written using termbox.
- [gomatrix](https://github.com/GeertJohan/gomatrix) connects to The Matrix and displays its data streams in your terminal.
- [gotetris](https://github.com/jjinux/gotetris) is an implementation of Tetris.
- [sokoban-go](https://github.com/rn2dy/sokoban-go) is an implementation of sokoban game.
- [hecate](https://github.com/evanmiller/hecate) is a hex editor designed by Satan.
- [httopd](https://github.com/verdverm/httopd) is top for httpd logs.
- [mop](https://github.com/michaeldv/mop) is stock market tracker for hackers.
- [termui](https://github.com/gizak/termui) is a terminal dashboard.
- [termloop](https://github.com/JoelOtter/termloop) is a terminal game engine.
- [xterm-color-chart](https://github.com/kutuluk/xterm-color-chart) is a XTerm 256 color chart.
- [gocui](https://github.com/jroimartin/gocui) is a minimalist Go library aimed at creating console user interfaces.
- [dry](https://github.com/moncho/dry) is an interactive cli to manage Docker containers.

### API reference
[godoc.org/github.com/nsf/termbox-go](http://godoc.org/github.com/nsf/termbox-go)

+ 459
- 0
vendor/github.com/nsf/termbox-go/api.go View File

@@ -0,0 +1,459 @@
// +build !windows

package termbox

import "github.com/mattn/go-runewidth"
import "fmt"
import "os"
import "os/signal"
import "syscall"
import "runtime"

// public API

// Initializes termbox library. This function should be called before any other functions.
// After successful initialization, the library must be finalized using 'Close' function.
//
// Example usage:
// err := termbox.Init()
// if err != nil {
// panic(err)
// }
// defer termbox.Close()
func Init() error {
var err error

out, err = os.OpenFile("/dev/tty", syscall.O_WRONLY, 0)
if err != nil {
return err
}
in, err = syscall.Open("/dev/tty", syscall.O_RDONLY, 0)
if err != nil {
return err
}

err = setup_term()
if err != nil {
return fmt.Errorf("termbox: error while reading terminfo data: %v", err)
}

signal.Notify(sigwinch, syscall.SIGWINCH)
signal.Notify(sigio, syscall.SIGIO)

_, err = fcntl(in, syscall.F_SETFL, syscall.O_ASYNC|syscall.O_NONBLOCK)
if err != nil {
return err
}
_, err = fcntl(in, syscall.F_SETOWN, syscall.Getpid())
if runtime.GOOS != "darwin" && err != nil {
return err
}
err = tcgetattr(out.Fd(), &orig_tios)
if err != nil {
return err
}

tios := orig_tios
tios.Iflag &^= syscall_IGNBRK | syscall_BRKINT | syscall_PARMRK |
syscall_ISTRIP | syscall_INLCR | syscall_IGNCR |
syscall_ICRNL | syscall_IXON
tios.Oflag &^= syscall_OPOST
tios.Lflag &^= syscall_ECHO | syscall_ECHONL | syscall_ICANON |
syscall_ISIG | syscall_IEXTEN
tios.Cflag &^= syscall_CSIZE | syscall_PARENB
tios.Cflag |= syscall_CS8
tios.Cc[syscall_VMIN] = 1
tios.Cc[syscall_VTIME] = 0

err = tcsetattr(out.Fd(), &tios)
if err != nil {
return err
}

out.WriteString(funcs[t_enter_ca])
out.WriteString(funcs[t_enter_keypad])
out.WriteString(funcs[t_hide_cursor])
out.WriteString(funcs[t_clear_screen])

termw, termh = get_term_size(out.Fd())
back_buffer.init(termw, termh)
front_buffer.init(termw, termh)
back_buffer.clear()
front_buffer.clear()

go func() {
buf := make([]byte, 128)
for {
select {
case <-sigio:
for {
n, err := syscall.Read(in, buf)
if err == syscall.EAGAIN || err == syscall.EWOULDBLOCK {
break
}
select {
case input_comm <- input_event{buf[:n], err}:
ie := <-input_comm
buf = ie.data[:128]
case <-quit:
return
}
}
case <-quit:
return
}
}
}()

IsInit = true
return nil
}

// Interrupt an in-progress call to PollEvent by causing it to return
// EventInterrupt. Note that this function will block until the PollEvent
// function has successfully been interrupted.
func Interrupt() {
interrupt_comm <- struct{}{}
}

// Finalizes termbox library, should be called after successful initialization
// when termbox's functionality isn't required anymore.
func Close() {
quit <- 1
out.WriteString(funcs[t_show_cursor])
out.WriteString(funcs[t_sgr0])
out.WriteString(funcs[t_clear_screen])
out.WriteString(funcs[t_exit_ca])
out.WriteString(funcs[t_exit_keypad])
out.WriteString(funcs[t_exit_mouse])
tcsetattr(out.Fd(), &orig_tios)

out.Close()
syscall.Close(in)

// reset the state, so that on next Init() it will work again
termw = 0
termh = 0
input_mode = InputEsc
out = nil
in = 0
lastfg = attr_invalid
lastbg = attr_invalid
lastx = coord_invalid
lasty = coord_invalid
cursor_x = cursor_hidden
cursor_y = cursor_hidden
foreground = ColorDefault
background = ColorDefault
IsInit = false
}

// Synchronizes the internal back buffer with the terminal.
func Flush() error {
// invalidate cursor position
lastx = coord_invalid
lasty = coord_invalid

update_size_maybe()

for y := 0; y < front_buffer.height; y++ {
line_offset := y * front_buffer.width
for x := 0; x < front_buffer.width; {
cell_offset := line_offset + x
back := &back_buffer.cells[cell_offset]
front := &front_buffer.cells[cell_offset]
if back.Ch < ' ' {
back.Ch = ' '
}
w := runewidth.RuneWidth(back.Ch)
if w == 0 || w == 2 && runewidth.IsAmbiguousWidth(back.Ch) {
w = 1
}
if *back == *front {
x += w
continue
}
*front = *back
send_attr(back.Fg, back.Bg)

if w == 2 && x == front_buffer.width-1 {
// there's not enough space for 2-cells rune,
// let's just put a space in there
send_char(x, y, ' ')
} else {
send_char(x, y, back.Ch)
if w == 2 {
next := cell_offset + 1
front_buffer.cells[next] = Cell{
Ch: 0,
Fg: back.Fg,
Bg: back.Bg,
}
}
}
x += w
}
}
if !is_cursor_hidden(cursor_x, cursor_y) {
write_cursor(cursor_x, cursor_y)
}
return flush()
}

// Sets the position of the cursor. See also HideCursor().
func SetCursor(x, y int) {
if is_cursor_hidden(cursor_x, cursor_y) && !is_cursor_hidden(x, y) {
outbuf.WriteString(funcs[t_show_cursor])
}

if !is_cursor_hidden(cursor_x, cursor_y) && is_cursor_hidden(x, y) {
outbuf.WriteString(funcs[t_hide_cursor])
}

cursor_x, cursor_y = x, y
if !is_cursor_hidden(cursor_x, cursor_y) {
write_cursor(cursor_x, cursor_y)
}
}

// The shortcut for SetCursor(-1, -1).
func HideCursor() {
SetCursor(cursor_hidden, cursor_hidden)
}

// Changes cell's parameters in the internal back buffer at the specified
// position.
func SetCell(x, y int, ch rune, fg, bg Attribute) {
if x < 0 || x >= back_buffer.width {
return
}
if y < 0 || y >= back_buffer.height {
return
}

back_buffer.cells[y*back_buffer.width+x] = Cell{ch, fg, bg}
}

// Returns a slice into the termbox's back buffer. You can get its dimensions
// using 'Size' function. The slice remains valid as long as no 'Clear' or
// 'Flush' function calls were made after call to this function.
func CellBuffer() []Cell {
return back_buffer.cells
}

// After getting a raw event from PollRawEvent function call, you can parse it
// again into an ordinary one using termbox logic. That is parse an event as
// termbox would do it. Returned event in addition to usual Event struct fields
// sets N field to the amount of bytes used within 'data' slice. If the length
// of 'data' slice is zero or event cannot be parsed for some other reason, the
// function will return a special event type: EventNone.
//
// IMPORTANT: EventNone may contain a non-zero N, which means you should skip
// these bytes, because termbox cannot recognize them.
//
// NOTE: This API is experimental and may change in future.
func ParseEvent(data []byte) Event {
event := Event{Type: EventKey}
ok := extract_event(data, &event)
if !ok {
return Event{Type: EventNone, N: event.N}
}
return event
}

// Wait for an event and return it. This is a blocking function call. Instead
// of EventKey and EventMouse it returns EventRaw events. Raw event is written
// into `data` slice and Event's N field is set to the amount of bytes written.
// The minimum required length of the 'data' slice is 1. This requirement may
// vary on different platforms.
//
// NOTE: This API is experimental and may change in future.
func PollRawEvent(data []byte) Event {
if len(data) == 0 {
panic("len(data) >= 1 is a requirement")
}

var event Event
if extract_raw_event(data, &event) {
return event
}

for {
select {
case ev := <-input_comm:
if ev.err != nil {
return Event{Type: EventError, Err: ev.err}
}

inbuf = append(inbuf, ev.data...)
input_comm <- ev
if extract_raw_event(data, &event) {
return event
}
case <-interrupt_comm:
event.Type = EventInterrupt
return event

case <-sigwinch:
event.Type = EventResize
event.Width, event.Height = get_term_size(out.Fd())
return event
}
}
}

// Wait for an event and return it. This is a blocking function call.
func PollEvent() Event {
var event Event

// try to extract event from input buffer, return on success
event.Type = EventKey
ok := extract_event(inbuf, &event)
if event.N != 0 {
copy(inbuf, inbuf[event.N:])
inbuf = inbuf[:len(inbuf)-event.N]
}
if ok {
return event
}

for {
select {
case ev := <-input_comm:
if ev.err != nil {
return Event{Type: EventError, Err: ev.err}
}

inbuf = append(inbuf, ev.data...)
input_comm <- ev
ok := extract_event(inbuf, &event)
if event.N != 0 {
copy(inbuf, inbuf[event.N:])
inbuf = inbuf[:len(inbuf)-event.N]
}
if ok {
return event
}
case <-interrupt_comm:
event.Type = EventInterrupt
return event

case <-sigwinch:
event.Type = EventResize
event.Width, event.Height = get_term_size(out.Fd())
return event
}
}
panic("unreachable")
}

// Returns the size of the internal back buffer (which is mostly the same as
// terminal's window size in characters). But it doesn't always match the size
// of the terminal window, after the terminal size has changed, the internal
// back buffer will get in sync only after Clear or Flush function calls.
func Size() (width int, height int) {
return termw, termh
}

// Clears the internal back buffer.
func Clear(fg, bg Attribute) error {
foreground, background = fg, bg
err := update_size_maybe()
back_buffer.clear()
return err
}

// Sets termbox input mode. Termbox has two input modes:
//
// 1. Esc input mode. When ESC sequence is in the buffer and it doesn't match
// any known sequence. ESC means KeyEsc. This is the default input mode.
//
// 2. Alt input mode. When ESC sequence is in the buffer and it doesn't match
// any known sequence. ESC enables ModAlt modifier for the next keyboard event.
//
// Both input modes can be OR'ed with Mouse mode. Setting Mouse mode bit up will
// enable mouse button press/release and drag events.
//
// If 'mode' is InputCurrent, returns the current input mode. See also Input*
// constants.
func SetInputMode(mode InputMode) InputMode {
if mode == InputCurrent {
return input_mode
}
if mode&(InputEsc|InputAlt) == 0 {
mode |= InputEsc
}
if mode&(InputEsc|InputAlt) == InputEsc|InputAlt {
mode &^= InputAlt
}
if mode&InputMouse != 0 {
out.WriteString(funcs[t_enter_mouse])
} else {
out.WriteString(funcs[t_exit_mouse])
}

input_mode = mode
return input_mode
}

// Sets the termbox output mode. Termbox has four output options:
//
// 1. OutputNormal => [1..8]
// This mode provides 8 different colors:
// black, red, green, yellow, blue, magenta, cyan, white
// Shortcut: ColorBlack, ColorRed, ...
// Attributes: AttrBold, AttrUnderline, AttrReverse
//
// Example usage:
// SetCell(x, y, '@', ColorBlack | AttrBold, ColorRed);
//
// 2. Output256 => [1..256]
// In this mode you can leverage the 256 terminal mode:
// 0x01 - 0x08: the 8 colors as in OutputNormal
// 0x09 - 0x10: Color* | AttrBold
// 0x11 - 0xe8: 216 different colors
// 0xe9 - 0x1ff: 24 different shades of grey
//
// Example usage:
// SetCell(x, y, '@', 184, 240);
// SetCell(x, y, '@', 0xb8, 0xf0);
//
// 3. Output216 => [1..216]
// This mode supports the 3rd range of the 256 mode only.
// But you dont need to provide an offset.
//
// 4. OutputGrayscale => [1..26]
// This mode supports the 4th range of the 256 mode
// and black and white colors from 3th range of the 256 mode
// But you dont need to provide an offset.
//
// In all modes, 0x00 represents the default color.
//
// `go run _demos/output.go` to see its impact on your terminal.
//
// If 'mode' is OutputCurrent, it returns the current output mode.
//
// Note that this may return a different OutputMode than the one requested,
// as the requested mode may not be available on the target platform.
func SetOutputMode(mode OutputMode) OutputMode {
if mode == OutputCurrent {
return output_mode
}

output_mode = mode
return output_mode
}

// Sync comes handy when something causes desync between termbox's understanding
// of a terminal buffer and the reality. Such as a third party process. Sync
// forces a complete resync between the termbox and a terminal, it may not be
// visually pretty though.
func Sync() error {
front_buffer.clear()
err := send_clear()
if err != nil {
return err
}

return Flush()
}

+ 187
- 0
vendor/github.com/nsf/termbox-go/api_common.go View File

@@ -0,0 +1,187 @@
// termbox is a library for creating cross-platform text-based interfaces
package termbox

// public API, common OS agnostic part

type (
InputMode int
OutputMode int
EventType uint8
Modifier uint8
Key uint16
Attribute uint16
)

// This type represents a termbox event. The 'Mod', 'Key' and 'Ch' fields are
// valid if 'Type' is EventKey. The 'Width' and 'Height' fields are valid if
// 'Type' is EventResize. The 'Err' field is valid if 'Type' is EventError.
type Event struct {
Type EventType // one of Event* constants
Mod Modifier // one of Mod* constants or 0
Key Key // one of Key* constants, invalid if 'Ch' is not 0
Ch rune // a unicode character
Width int // width of the screen
Height int // height of the screen
Err error // error in case if input failed
MouseX int // x coord of mouse
MouseY int // y coord of mouse
N int // number of bytes written when getting a raw event
}

// A cell, single conceptual entity on the screen. The screen is basically a 2d
// array of cells. 'Ch' is a unicode character, 'Fg' and 'Bg' are foreground
// and background attributes respectively.
type Cell struct {
Ch rune
Fg Attribute
Bg Attribute
}

// To know if termbox has been initialized or not
var (
IsInit bool = false
)

// Key constants, see Event.Key field.
const (
KeyF1 Key = 0xFFFF - iota
KeyF2
KeyF3
KeyF4
KeyF5
KeyF6
KeyF7
KeyF8
KeyF9
KeyF10
KeyF11
KeyF12
KeyInsert
KeyDelete
KeyHome
KeyEnd
KeyPgup
KeyPgdn
KeyArrowUp
KeyArrowDown
KeyArrowLeft
KeyArrowRight
key_min // see terminfo
MouseLeft
MouseMiddle
MouseRight
MouseRelease
MouseWheelUp
MouseWheelDown
)

const (
KeyCtrlTilde Key = 0x00
KeyCtrl2 Key = 0x00
KeyCtrlSpace Key = 0x00
KeyCtrlA Key = 0x01
KeyCtrlB Key = 0x02
KeyCtrlC Key = 0x03
KeyCtrlD Key = 0x04
KeyCtrlE Key = 0x05
KeyCtrlF Key = 0x06
KeyCtrlG Key = 0x07
KeyBackspace Key = 0x08
KeyCtrlH Key = 0x08
KeyTab Key = 0x09
KeyCtrlI Key = 0x09
KeyCtrlJ Key = 0x0A
KeyCtrlK Key = 0x0B
KeyCtrlL Key = 0x0C
KeyEnter Key = 0x0D
KeyCtrlM Key = 0x0D
KeyCtrlN Key = 0x0E
KeyCtrlO Key = 0x0F
KeyCtrlP Key = 0x10
KeyCtrlQ Key = 0x11
KeyCtrlR Key = 0x12
KeyCtrlS Key = 0x13
KeyCtrlT Key = 0x14
KeyCtrlU Key = 0x15
KeyCtrlV Key = 0x16
KeyCtrlW Key = 0x17
KeyCtrlX Key = 0x18
KeyCtrlY Key = 0x19
KeyCtrlZ Key = 0x1A
KeyEsc Key = 0x1B
KeyCtrlLsqBracket Key = 0x1B
KeyCtrl3 Key = 0x1B
KeyCtrl4 Key = 0x1C
KeyCtrlBackslash Key = 0x1C
KeyCtrl5 Key = 0x1D
KeyCtrlRsqBracket Key = 0x1D
KeyCtrl6 Key = 0x1E
KeyCtrl7 Key = 0x1F
KeyCtrlSlash Key = 0x1F
KeyCtrlUnderscore Key = 0x1F
KeySpace Key = 0x20
KeyBackspace2 Key = 0x7F
KeyCtrl8 Key = 0x7F
)

// Alt modifier constant, see Event.Mod field and SetInputMode function.
const (
ModAlt Modifier = 1 << iota
ModMotion
)

// Cell colors, you can combine a color with multiple attributes using bitwise
// OR ('|').
const (
ColorDefault Attribute = iota
ColorBlack
ColorRed
ColorGreen
ColorYellow
ColorBlue
ColorMagenta
ColorCyan
ColorWhite
)

// Cell attributes, it is possible to use multiple attributes by combining them
// using bitwise OR ('|'). Although, colors cannot be combined. But you can
// combine attributes and a single color.
//
// It's worth mentioning that some platforms don't support certain attibutes.
// For example windows console doesn't support AttrUnderline. And on some
// terminals applying AttrBold to background may result in blinking text. Use
// them with caution and test your code on various terminals.
const (
AttrBold Attribute = 1 << (iota + 9)
AttrUnderline
AttrReverse
)

// Input mode. See SetInputMode function.
const (
InputEsc InputMode = 1 << iota
InputAlt
InputMouse
InputCurrent InputMode = 0
)

// Output mode. See SetOutputMode function.
const (
OutputCurrent OutputMode = iota
OutputNormal
Output256
Output216
OutputGrayscale
)

// Event type. See Event.Type field.
const (
EventKey EventType = iota
EventResize
EventMouse
EventError
EventInterrupt
EventRaw
EventNone
)

+ 239
- 0
vendor/github.com/nsf/termbox-go/api_windows.go View File

@@ -0,0 +1,239 @@
package termbox

import (
"syscall"
)

// public API

// Initializes termbox library. This function should be called before any other functions.
// After successful initialization, the library must be finalized using 'Close' function.
//
// Example usage:
// err := termbox.Init()
// if err != nil {
// panic(err)
// }
// defer termbox.Close()
func Init() error {
var err error

interrupt, err = create_event()
if err != nil {
return err
}

in, err = syscall.Open("CONIN$", syscall.O_RDWR, 0)
if err != nil {
return err
}
out, err = syscall.Open("CONOUT$", syscall.O_RDWR, 0)
if err != nil {
return err
}

err = get_console_mode(in, &orig_mode)
if err != nil {
return err
}

err = set_console_mode(in, enable_window_input)
if err != nil {
return err
}

orig_size = get_term_size(out)
win_size := get_win_size(out)

err = set_console_screen_buffer_size(out, win_size)
if err != nil {
return err
}

err = get_console_cursor_info(out, &orig_cursor_info)
if err != nil {
return err
}

show_cursor(false)
term_size = get_term_size(out)
back_buffer.init(int(term_size.x), int(term_size.y))
front_buffer.init(int(term_size.x), int(term_size.y))
back_buffer.clear()
front_buffer.clear()
clear()

diffbuf = make([]diff_msg, 0, 32)

go input_event_producer()
IsInit = true
return nil
}

// Finalizes termbox library, should be called after successful initialization
// when termbox's functionality isn't required anymore.
func Close() {
// we ignore errors here, because we can't really do anything about them
Clear(0, 0)
Flush()

// stop event producer
cancel_comm <- true
set_event(interrupt)
select {
case <-input_comm:
default:
}
<-cancel_done_comm

set_console_cursor_info(out, &orig_cursor_info)
set_console_cursor_position(out, coord{})
set_console_screen_buffer_size(out, orig_size)
set_console_mode(in, orig_mode)
syscall.Close(in)
syscall.Close(out)
syscall.Close(interrupt)
IsInit = false
}

// Interrupt an in-progress call to PollEvent by causing it to return
// EventInterrupt. Note that this function will block until the PollEvent
// function has successfully been interrupted.
func Interrupt() {
interrupt_comm <- struct{}{}
}

// Synchronizes the internal back buffer with the terminal.
func Flush() error {
update_size_maybe()
prepare_diff_messages()
for _, diff := range diffbuf {
r := small_rect{
left: 0,
top: diff.pos,
right: term_size.x - 1,
bottom: diff.pos + diff.lines - 1,
}
write_console_output(out, diff.chars, r)
}
if !is_cursor_hidden(cursor_x, cursor_y) {
move_cursor(cursor_x, cursor_y)
}
return nil
}

// Sets the position of the cursor. See also HideCursor().
func SetCursor(x, y int) {
if is_cursor_hidden(cursor_x, cursor_y) && !is_cursor_hidden(x, y) {
show_cursor(true)
}

if !is_cursor_hidden(cursor_x, cursor_y) && is_cursor_hidden(x, y) {
show_cursor(false)
}

cursor_x, cursor_y = x, y
if !is_cursor_hidden(cursor_x, cursor_y) {
move_cursor(cursor_x, cursor_y)
}
}

// The shortcut for SetCursor(-1, -1).
func HideCursor() {
SetCursor(cursor_hidden, cursor_hidden)
}

// Changes cell's parameters in the internal back buffer at the specified
// position.
func SetCell(x, y int, ch rune, fg, bg Attribute) {
if x < 0 || x >= back_buffer.width {
return
}
if y < 0 || y >= back_buffer.height {
return
}

back_buffer.cells[y*back_buffer.width+x] = Cell{ch, fg, bg}
}

// Returns a slice into the termbox's back buffer. You can get its dimensions
// using 'Size' function. The slice remains valid as long as no 'Clear' or
// 'Flush' function calls were made after call to this function.
func CellBuffer() []Cell {
return back_buffer.cells
}

// Wait for an event and return it. This is a blocking function call.
func PollEvent() Event {
select {
case ev := <-input_comm:
return ev
case <-interrupt_comm:
return Event{Type: EventInterrupt}
}
}

// Returns the size of the internal back buffer (which is mostly the same as
// console's window size in characters). But it doesn't always match the size
// of the console window, after the console size has changed, the internal back
// buffer will get in sync only after Clear or Flush function calls.
func Size() (int, int) {
return int(term_size.x), int(term_size.y)
}

// Clears the internal back buffer.
func Clear(fg, bg Attribute) error {
foreground, background = fg, bg
update_size_maybe()
back_buffer.clear()
return nil
}

// Sets termbox input mode. Termbox has two input modes:
//
// 1. Esc input mode. When ESC sequence is in the buffer and it doesn't match
// any known sequence. ESC means KeyEsc. This is the default input mode.
//
// 2. Alt input mode. When ESC sequence is in the buffer and it doesn't match
// any known sequence. ESC enables ModAlt modifier for the next keyboard event.
//
// Both input modes can be OR'ed with Mouse mode. Setting Mouse mode bit up will
// enable mouse button press/release and drag events.
//
// If 'mode' is InputCurrent, returns the current input mode. See also Input*
// constants.
func SetInputMode(mode InputMode) InputMode {
if mode == InputCurrent {
return input_mode
}
if mode&InputMouse != 0 {
err := set_console_mode(in, enable_window_input|enable_mouse_input|enable_extended_flags)
if err != nil {
panic(err)
}
} else {
err := set_console_mode(in, enable_window_input)
if err != nil {
panic(err)
}
}

input_mode = mode
return input_mode
}

// Sets the termbox output mode.
//
// Windows console does not support extra colour modes,
// so this will always set and return OutputNormal.
func SetOutputMode(mode OutputMode) OutputMode {
return OutputNormal
}

// Sync comes handy when something causes desync between termbox's understanding
// of a terminal buffer and the reality. Such as a third party process. Sync
// forces a complete resync between the termbox and a terminal, it may not be
// visually pretty though. At the moment on Windows it does nothing.
func Sync() error {
return nil
}

+ 110
- 0
vendor/github.com/nsf/termbox-go/collect_terminfo.py View File

@@ -0,0 +1,110 @@
#!/usr/bin/env python

import sys, os, subprocess

def escaped(s):
return repr(s)[1:-1]

def tput(term, name):
try:
return subprocess.check_output(['tput', '-T%s' % term, name]).decode()
except subprocess.CalledProcessError as e:
return e.output.decode()


def w(s):
if s == None:
return
sys.stdout.write(s)

terminals = {
'xterm' : 'xterm',
'rxvt-256color' : 'rxvt_256color',
'rxvt-unicode' : 'rxvt_unicode',
'linux' : 'linux',
'Eterm' : 'eterm',
'screen' : 'screen'
}

keys = [
"F1", "kf1",
"F2", "kf2",
"F3", "kf3",
"F4", "kf4",
"F5", "kf5",
"F6", "kf6",
"F7", "kf7",
"F8", "kf8",
"F9", "kf9",
"F10", "kf10",
"F11", "kf11",
"F12", "kf12",
"INSERT", "kich1",
"DELETE", "kdch1",
"HOME", "khome",
"END", "kend",
"PGUP", "kpp",
"PGDN", "knp",
"KEY_UP", "kcuu1",
"KEY_DOWN", "kcud1",
"KEY_LEFT", "kcub1",
"KEY_RIGHT", "kcuf1"
]

funcs = [
"T_ENTER_CA", "smcup",
"T_EXIT_CA", "rmcup",
"T_SHOW_CURSOR", "cnorm",
"T_HIDE_CURSOR", "civis",
"T_CLEAR_SCREEN", "clear",
"T_SGR0", "sgr0",
"T_UNDERLINE", "smul",
"T_BOLD", "bold",
"T_BLINK", "blink",
"T_REVERSE", "rev",
"T_ENTER_KEYPAD", "smkx",
"T_EXIT_KEYPAD", "rmkx"
]

def iter_pairs(iterable):
iterable = iter(iterable)
while True:
yield (next(iterable), next(iterable))

def do_term(term, nick):
w("// %s\n" % term)
w("var %s_keys = []string{\n\t" % nick)
for k, v in iter_pairs(keys):
w('"')
w(escaped(tput(term, v)))
w('",')
w("\n}\n")
w("var %s_funcs = []string{\n\t" % nick)
for k,v in iter_pairs(funcs):
w('"')
if v == "sgr":
w("\\033[3%d;4%dm")
elif v == "cup":
w("\\033[%d;%dH")
else:
w(escaped(tput(term, v)))
w('", ')
w("\n}\n\n")

def do_terms(d):
w("var terms = []struct {\n")
w("\tname string\n")
w("\tkeys []string\n")
w("\tfuncs []string\n")
w("}{\n")
for k, v in d.items():
w('\t{"%s", %s_keys, %s_funcs},\n' % (k, v, v))
w("}\n\n")

w("// +build !windows\n\npackage termbox\n\n")

for k,v in terminals.items():
do_term(k, v)

do_terms(terminals)


+ 39
- 0
vendor/github.com/nsf/termbox-go/syscalls.go View File

@@ -0,0 +1,39 @@
// +build ignore

package termbox

/*
#include <termios.h>
#include <sys/ioctl.h>
*/
import "C"

type syscall_Termios C.struct_termios

const (
syscall_IGNBRK = C.IGNBRK
syscall_BRKINT = C.BRKINT
syscall_PARMRK = C.PARMRK
syscall_ISTRIP = C.ISTRIP
syscall_INLCR = C.INLCR
syscall_IGNCR = C.IGNCR
syscall_ICRNL = C.ICRNL
syscall_IXON = C.IXON
syscall_OPOST = C.OPOST
syscall_ECHO = C.ECHO
syscall_ECHONL = C.ECHONL
syscall_ICANON = C.ICANON
syscall_ISIG = C.ISIG
syscall_IEXTEN = C.IEXTEN
syscall_CSIZE = C.CSIZE
syscall_PARENB = C.PARENB
syscall_CS8 = C.CS8
syscall_VMIN = C.VMIN
syscall_VTIME = C.VTIME

// on darwin change these to (on *bsd too?):
// C.TIOCGETA
// C.TIOCSETA
syscall_TCGETS = C.TCGETS
syscall_TCSETS = C.TCSETS
)

+ 41
- 0
vendor/github.com/nsf/termbox-go/syscalls_darwin.go View File

@@ -0,0 +1,41 @@
// Created by cgo -godefs - DO NOT EDIT
// cgo -godefs syscalls.go

// +build !amd64

package termbox

type syscall_Termios struct {
Iflag uint32
Oflag uint32
Cflag uint32
Lflag uint32
Cc [20]uint8
Ispeed uint32
Ospeed uint32
}

const (
syscall_IGNBRK = 0x1
syscall_BRKINT = 0x2
syscall_PARMRK = 0x8
syscall_ISTRIP = 0x20
syscall_INLCR = 0x40
syscall_IGNCR = 0x80
syscall_ICRNL = 0x100
syscall_IXON = 0x200
syscall_OPOST = 0x1
syscall_ECHO = 0x8
syscall_ECHONL = 0x10
syscall_ICANON = 0x100
syscall_ISIG = 0x80
syscall_IEXTEN = 0x400
syscall_CSIZE = 0x300
syscall_PARENB = 0x1000
syscall_CS8 = 0x300
syscall_VMIN = 0x10
syscall_VTIME = 0x11

syscall_TCGETS = 0x402c7413
syscall_TCSETS = 0x802c7414
)

+ 40
- 0
vendor/github.com/nsf/termbox-go/syscalls_darwin_amd64.go View File

@@ -0,0 +1,40 @@
// Created by cgo -godefs - DO NOT EDIT
// cgo -godefs syscalls.go

package termbox

type syscall_Termios struct {
Iflag uint64
Oflag uint64
Cflag uint64
Lflag uint64
Cc [20]uint8
Pad_cgo_0 [4]byte
Ispeed uint64
Ospeed uint64
}

const (
syscall_IGNBRK = 0x1
syscall_BRKINT = 0x2
syscall_PARMRK = 0x8
syscall_ISTRIP = 0x20
syscall_INLCR = 0x40
syscall_IGNCR = 0x80
syscall_ICRNL = 0x100
syscall_IXON = 0x200
syscall_OPOST = 0x1
syscall_ECHO = 0x8
syscall_ECHONL = 0x10
syscall_ICANON = 0x100
syscall_ISIG = 0x80
syscall_IEXTEN = 0x400
syscall_CSIZE = 0x300
syscall_PARENB = 0x1000
syscall_CS8 = 0x300
syscall_VMIN = 0x10
syscall_VTIME = 0x11

syscall_TCGETS = 0x40487413
syscall_TCSETS = 0x80487414
)

+ 39
- 0
vendor/github.com/nsf/termbox-go/syscalls_freebsd.go View File

@@ -0,0 +1,39 @@
// Created by cgo -godefs - DO NOT EDIT
// cgo -godefs syscalls.go

package termbox

type syscall_Termios struct {
Iflag uint32
Oflag uint32
Cflag uint32
Lflag uint32
Cc [20]uint8
Ispeed uint32
Ospeed uint32
}

const (
syscall_IGNBRK = 0x1
syscall_BRKINT = 0x2
syscall_PARMRK = 0x8
syscall_ISTRIP = 0x20
syscall_INLCR = 0x40
syscall_IGNCR = 0x80
syscall_ICRNL = 0x100
syscall_IXON = 0x200
syscall_OPOST = 0x1
syscall_ECHO = 0x8
syscall_ECHONL = 0x10
syscall_ICANON = 0x100
syscall_ISIG = 0x80
syscall_IEXTEN = 0x400
syscall_CSIZE = 0x300
syscall_PARENB = 0x1000
syscall_CS8 = 0x300
syscall_VMIN = 0x10
syscall_VTIME = 0x11

syscall_TCGETS = 0x402c7413
syscall_TCSETS = 0x802c7414
)

+ 33
- 0
vendor/github.com/nsf/termbox-go/syscalls_linux.go View File

@@ -0,0 +1,33 @@
// Created by cgo -godefs - DO NOT EDIT
// cgo -godefs syscalls.go

package termbox

import "syscall"

type syscall_Termios syscall.Termios

const (
syscall_IGNBRK = syscall.IGNBRK
syscall_BRKINT = syscall.BRKINT
syscall_PARMRK = syscall.PARMRK
syscall_ISTRIP = syscall.ISTRIP
syscall_INLCR = syscall.INLCR
syscall_IGNCR = syscall.IGNCR
syscall_ICRNL = syscall.ICRNL
syscall_IXON = syscall.IXON
syscall_OPOST = syscall.OPOST
syscall_ECHO = syscall.ECHO
syscall_ECHONL = syscall.ECHONL
syscall_ICANON = syscall.ICANON
syscall_ISIG = syscall.ISIG
syscall_IEXTEN = syscall.IEXTEN
syscall_CSIZE = syscall.CSIZE
syscall_PARENB = syscall.PARENB
syscall_CS8 = syscall.CS8
syscall_VMIN = syscall.VMIN
syscall_VTIME = syscall.VTIME

syscall_TCGETS = syscall.TCGETS
syscall_TCSETS = syscall.TCSETS
)

+ 39
- 0
vendor/github.com/nsf/termbox-go/syscalls_netbsd.go View File

@@ -0,0 +1,39 @@
// Created by cgo -godefs - DO NOT EDIT
// cgo -godefs syscalls.go

package termbox

type syscall_Termios struct {
Iflag uint32
Oflag uint32
Cflag uint32
Lflag uint32
Cc [20]uint8
Ispeed int32
Ospeed int32
}

const (
syscall_IGNBRK = 0x1
syscall_BRKINT = 0x2
syscall_PARMRK = 0x8
syscall_ISTRIP = 0x20
syscall_INLCR = 0x40
syscall_IGNCR = 0x80
syscall_ICRNL = 0x100
syscall_IXON = 0x200
syscall_OPOST = 0x1
syscall_ECHO = 0x8
syscall_ECHONL = 0x10
syscall_ICANON = 0x100
syscall_ISIG = 0x80
syscall_IEXTEN = 0x400
syscall_CSIZE = 0x300
syscall_PARENB = 0x1000
syscall_CS8 = 0x300
syscall_VMIN = 0x10
syscall_VTIME = 0x11

syscall_TCGETS = 0x402c7413