@ -4,418 +4,408 @@ import { isWindows } from '../git/shell';
const emptyStr = '' ;
export namespace Strings {
export const enum CharCode {
/ * *
* The ` / ` character .
* /
Slash = 47 ,
/ * *
* The ` \` character.
* /
Backslash = 92 ,
}
export const enum CharCode {
/ * *
* The ` / ` character .
* /
Slash = 47 ,
/ * *
* The ` \` character.
* /
Backslash = 92 ,
}
export function base64 ( s : string ) : string {
const buffer = Buffer . from ( s ) ;
return buffer . toString ( 'base64' ) ;
}
export function base64 ( s : string ) : string {
const buffer = Buffer . from ( s ) ;
return buffer . toString ( 'base64' ) ;
}
const escapeMarkdownRegex = /[\\`*_{}[\]()#+\-.!]/g ;
const escapeMarkdownHeaderRegex = /^===/gm ;
// const sampleMarkdown = '## message `not code` *not important* _no underline_ \n> don\'t quote me \n- don\'t list me \n+ don\'t list me \n1. don\'t list me \nnot h1 \n=== \nnot h2 \n---\n***\n---\n___';
const markdownQuotedRegex = /\n/g ;
const escapeMarkdownRegex = /[\\`*_{}[\]()#+\-.!]/g ;
const escapeMarkdownHeaderRegex = /^===/gm ;
// const sampleMarkdown = '## message `not code` *not important* _no underline_ \n> don\'t quote me \n- don\'t list me \n+ don\'t list me \n1. don\'t list me \nnot h1 \n=== \nnot h2 \n---\n***\n---\n___';
const markdownQuotedRegex = /\n/g ;
export function escapeMarkdown ( s : string , options : { quoted? : boolean } = { } ) : string {
s = s
// Escape markdown
. replace ( escapeMarkdownRegex , '\\$&' )
// Escape markdown header (since the above regex won't match it)
. replace ( escapeMarkdownHeaderRegex , '\u200b===' ) ;
export function escapeMarkdown ( s : string , options : { quoted? : boolean } = { } ) : string {
s = s
// Escape markdown
. replace ( escapeMarkdownRegex , '\\$&' )
// Escape markdown header (since the above regex won't match it)
. replace ( escapeMarkdownHeaderRegex , '\u200b===' ) ;
if ( ! options . quoted ) return s ;
if ( ! options . quoted ) return s ;
// Keep under the same block-quote but with line breaks
return s . replace ( markdownQuotedRegex , '\t\n> ' ) ;
}
// Keep under the same block-quote but with line breaks
return s . replace ( markdownQuotedRegex , '\t\n> ' ) ;
}
export function escapeRegex ( s : string ) {
return s . replace ( /[-[\]{}()*+?.,\\^$|#\s]/g , '\\$&' ) ;
}
export function escapeRegex ( s : string ) {
return s . replace ( /[-[\]{}()*+?.,\\^$|#\s]/g , '\\$&' ) ;
}
export function getCommonBase ( s1 : string , s2 : string , delimiter : string ) {
let char ;
let index = 0 ;
for ( let i = 0 ; i < s1 . length ; i ++ ) {
char = s1 [ i ] ;
if ( char !== s2 [ i ] ) break ;
export function getCommonBase ( s1 : string , s2 : string , delimiter : string ) {
let char ;
let index = 0 ;
for ( let i = 0 ; i < s1 . length ; i ++ ) {
char = s1 [ i ] ;
if ( char !== s2 [ i ] ) break ;
if ( char === delimiter ) {
index = i ;
}
if ( char === delimiter ) {
index = i ;
}
return index > 0 ? s1 . substring ( 0 , index + 1 ) : undefined ;
}
export function getDurationMilliseconds ( start : [ number , number ] ) {
const [ secs , nanosecs ] = process . hrtime ( start ) ;
return secs * 1000 + Math . floor ( nanosecs / 1000000 ) ;
}
return index > 0 ? s1 . substring ( 0 , index + 1 ) : undefined ;
}
const superscripts = [ '\u00B9' , '\u00B2' , '\u00B3' , '\u2074' , '\u2075' , '\u2076' , '\u2077' , '\u2078' , '\u2079' ] ;
export function getDurationMilliseconds ( start : [ number , number ] ) {
const [ secs , nanosecs ] = process . hrtime ( start ) ;
return secs * 1000 + Math . floor ( nanosecs / 1000000 ) ;
}
export function getSuperscript ( num : number ) {
return superscripts [ num - 1 ] ? ? '' ;
}
const superscripts = [ '\u00B9' , '\u00B2' , '\u00B3' , '\u2074' , '\u2075' , '\u2076' , '\u2077' , '\u2078' , '\u2079' ] ;
const driveLetterNormalizeRegex = /(?<=^\/?)([A-Z])(?=:\/)/ ;
const pathNormalizeRegex = /\\/g ;
const pathStripTrailingSlashRegex = /\/$/g ;
const tokenRegex = /\$\{(".*?"|\W*)?([^|]*?)(?:\|(\d+)(-|\?)?)?(".*?"|\W*)?\}/g ;
const tokenSanitizeRegex = /\$\{(?:".*?"|\W*)?(\w*?)(?:".*?"|[\W\d]*)\}/g ;
// eslint-disable-next-line no-template-curly-in-string
const tokenSanitizeReplacement = '$${this.$1}' ;
export interface TokenOptions {
collapseWhitespace : boolean ;
padDirection : 'left' | 'right' ;
prefix : string | undefined ;
suffix : string | undefined ;
truncateTo : number | undefined ;
}
export function getSuperscript ( num : number ) {
return superscripts [ num - 1 ] ? ? '' ;
}
export function getTokensFromTemplate ( template : string ) {
const tokens : { key : string ; options : TokenOptions } [ ] = [ ] ;
let match ;
do {
match = tokenRegex . exec ( template ) ;
if ( match == null ) break ;
const [ , prefix , key , truncateTo , option , suffix ] = match ;
tokens . push ( {
key : key ,
options : {
collapseWhitespace : option === '?' ,
padDirection : option === '-' ? 'left' : 'right' ,
prefix :
prefix ? . length > 1 && prefix ? . startsWith ( '"' ) && prefix ? . endsWith ( '"' )
? prefix . substr ( 1 , prefix . length - 2 )
: prefix ,
suffix : suffix ,
truncateTo : truncateTo == null ? undefined : parseInt ( truncateTo , 10 ) ,
} ,
} ) ;
} while ( true ) ;
return tokens ;
}
const driveLetterNormalizeRegex = /(?<=^\/?)([A-Z])(?=:\/)/ ;
const pathNormalizeRegex = /\\/g ;
const pathStripTrailingSlashRegex = /\/$/g ;
const tokenRegex = /\$\{(".*?"|\W*)?([^|]*?)(?:\|(\d+)(-|\?)?)?(".*?"|\W*)?\}/g ;
const tokenSanitizeRegex = /\$\{(?:".*?"|\W*)?(\w*?)(?:".*?"|[\W\d]*)\}/g ;
// eslint-disable-next-line no-template-curly-in-string
const tokenSanitizeReplacement = '$${this.$1}' ;
export interface TokenOptions {
collapseWhitespace : boolean ;
padDirection : 'left' | 'right' ;
prefix : string | undefined ;
suffix : string | undefined ;
truncateTo : number | undefined ;
}
const interpolationMap = new Map < string , Function > ( ) ;
export function getTokensFromTemplate ( template : string ) {
const tokens : { key : string ; options : TokenOptions } [ ] = [ ] ;
let match ;
do {
match = tokenRegex . exec ( template ) ;
if ( match == null ) break ;
const [ , prefix , key , truncateTo , option , suffix ] = match ;
tokens . push ( {
key : key ,
options : {
collapseWhitespace : option === '?' ,
padDirection : option === '-' ? 'left' : 'right' ,
prefix :
prefix ? . length > 1 && prefix ? . startsWith ( '"' ) && prefix ? . endsWith ( '"' )
? prefix . substr ( 1 , prefix . length - 2 )
: prefix ,
suffix : suffix ,
truncateTo : truncateTo == null ? undefined : parseInt ( truncateTo , 10 ) ,
} ,
} ) ;
} while ( true ) ;
return tokens ;
}
export function interpolate ( template : string , context : object | undefined ) : string {
if ( template == null || template . length === 0 ) return template ;
if ( context == null ) return template . replace ( tokenSanitizeRegex , emptyStr ) ;
const interpolationMap = new Map < string , Function > ( ) ;
let fn = interpolationMap . get ( template ) ;
if ( fn == null ) {
// eslint-disable-next-line @typescript-eslint/no-implied-eval
fn = new Function ( ` return \` ${ template . replace ( tokenSanitizeRegex , tokenSanitizeReplacement ) } \` ; ` ) ;
interpolationMap . set ( template , fn ) ;
}
export function interpolate ( template : string , context : object | undefined ) : string {
if ( template == null || template . length === 0 ) return template ;
if ( context == null ) return template . replace ( tokenSanitizeRegex , emptyStr ) ;
return fn . call ( context ) ;
let fn = interpolationMap . get ( template ) ;
if ( fn == null ) {
// eslint-disable-next-line @typescript-eslint/no-implied-eval
fn = new Function ( ` return \` ${ template . replace ( tokenSanitizeRegex , tokenSanitizeReplacement ) } \` ; ` ) ;
interpolationMap . set ( template , fn ) ;
}
export function * lines ( s : string ) : IterableIterator < string > {
let i = 0 ;
while ( i < s . length ) {
let j = s . indexOf ( '\n' , i ) ;
if ( j === - 1 ) {
j = s . length ;
}
return fn . call ( context ) ;
}
yield s . substring ( i , j ) ;
i = j + 1 ;
export function * lines ( s : string ) : IterableIterator < string > {
let i = 0 ;
while ( i < s . length ) {
let j = s . indexOf ( '\n' , i ) ;
if ( j === - 1 ) {
j = s . length ;
}
}
export function md5 ( s : string , encoding : HexBase64Latin1Encoding = 'base64' ) : string {
return createHash ( 'md5' ) . update ( s ) . digest ( encoding ) ;
yield s . substring ( i , j ) ;
i = j + 1 ;
}
}
export function normalizePath (
fileName : string ,
options : { addLeadingSlash? : boolean ; stripTrailingSlash? : boolean } = { stripTrailingSlash : true } ,
) {
if ( fileName == null || fileName . length === 0 ) return fileName ;
export function md5 ( s : string , encoding : HexBase64Latin1Encoding = 'base64' ) : string {
return createHash ( 'md5' ) . update ( s ) . digest ( encoding ) ;
}
let normalized = fileName . replace ( pathNormalizeRegex , '/' ) ;
export function normalizePath (
fileName : string ,
options : { addLeadingSlash? : boolean ; stripTrailingSlash? : boolean } = { stripTrailingSlash : true } ,
) {
if ( fileName == null || fileName . length === 0 ) return fileName ;
const { addLeadingSlash , stripTrailingSlash } = { stripTrailingSlash : true , . . . options } ;
let normalized = fileName . replace ( pathNormalizeRegex , '/' ) ;
if ( stripTrailingSlash ) {
normalized = normalized . replace ( pathStripTrailingSlashRegex , emptyStr ) ;
}
const { addLeadingSlash , stripTrailingSlash } = { stripTrailingSlash : true , . . . options } ;
if ( addLeadingSlash && normalized . charCodeAt ( 0 ) !== CharCode . ) {
normalized = ` / ${ normalized } ` ;
}
if ( stripTrailingSlash ) {
normalized = normalized . replace ( pathStripTrailingSlashRegex , emptyStr ) ;
}
if ( isWindows ) {
// Ensure that drive casing is normalized (lower case)
normalized = normalized . replace ( driveLetterNormalizeRegex , ( drive : string ) = > drive . toLowerCase ( ) ) ;
}
if ( addLeadingSlash && normalized . charCodeAt ( 0 ) !== CharCode . Slash ) {
normalized = ` / ${ normalized } ` ;
}
return normalized ;
if ( isWindows ) {
// Ensure that drive casing is normalized (lower case)
normalized = normalized . replace ( driveLetterNormalizeRegex , ( drive : string ) = > drive . toLowerCase ( ) ) ;
}
export function pad ( s : string , before : number = 0 , after : number = 0 , padding : string = '\u00a0' ) {
if ( before === 0 && after === 0 ) return s ;
return normalized ;
}
return ` ${ before === 0 ? emptyStr : padding.repeat ( before ) } ${ s } ${
after === 0 ? emptyStr : padding.repeat ( after )
} ` ;
}
export function pad ( s : string , before : number = 0 , after : number = 0 , padding : string = '\u00a0' ) {
if ( before === 0 && after === 0 ) return s ;
export function padLeft ( s : string , padTo : number , padding : string = '\u00a0' , width? : number ) {
const diff = padTo - ( width ? ? getWidth ( s ) ) ;
return diff <= 0 ? s : padding.repeat ( diff ) + s ;
}
return ` ${ before === 0 ? emptyStr : padding.repeat ( before ) } ${ s } ${ after === 0 ? emptyStr : padding.repeat ( after ) } ` ;
}
export function padLeftOrTruncate ( s : string , max : number , padding? : string , width? : number ) {
width = width ? ? getWidth ( s ) ;
if ( width < max ) return padLeft ( s , max , padding , width ) ;
if ( width > max ) return truncate ( s , max , undefined , width ) ;
return s ;
}
export function padLeft ( s : string , padTo : number , padding : string = '\u00a0' , width? : number ) {
const diff = padTo - ( width ? ? getWidth ( s ) ) ;
return diff <= 0 ? s : padding.repeat ( diff ) + s ;
}
export function padRight ( s : string , padTo : number , padding : string = '\u00a0' , width? : number ) {
const diff = padTo - ( width ? ? getWidth ( s ) ) ;
return diff <= 0 ? s : s + padding . repeat ( diff ) ;
}
export function padLeftOrTruncate ( s : string , max : number , padding? : string , width? : number ) {
width = width ? ? getWidth ( s ) ;
if ( width < max ) return padLeft ( s , max , padding , width ) ;
if ( width > max ) return truncate ( s , max , undefined , width ) ;
return s ;
}
export function padOrTruncate ( s : string , max : number , padding? : string , width? : number ) {
const left = max < 0 ;
max = Math . abs ( max ) ;
export function padRight ( s : string , padTo : number , padding : string = '\u00a0' , width? : number ) {
const diff = padTo - ( width ? ? getWidth ( s ) ) ;
return diff <= 0 ? s : s + padding . repeat ( diff ) ;
}
width = width ? ? getWidth ( s ) ;
if ( width < max ) return left ? padLeft ( s , max , padding , width ) : padRight ( s , max , padding , width ) ;
if ( width > max ) return truncate ( s , max , undefined , width ) ;
return s ;
}
export function padOrTruncate ( s : string , max : number , padding? : string , width? : number ) {
const left = max < 0 ;
max = Math . abs ( max ) ;
export function padRightOrTruncate ( s : string , max : number , padding? : string , width? : number ) {
width = width ? ? getWidth ( s ) ;
if ( width < max ) return padRight ( s , max , padding , width ) ;
if ( width > max ) return truncate ( s , max ) ;
return s ;
}
width = width ? ? getWidth ( s ) ;
if ( width < max ) return left ? padLeft ( s , max , padding , width ) : padRight ( s , max , padding , width ) ;
if ( width > max ) return truncate ( s , max , undefined , width ) ;
return s ;
}
export function pluralize (
s : string ,
count : number ,
options ? : { number ? : string ; plural? : string ; suffix? : string ; zero? : string } ,
) {
if ( options == null ) return ` ${ count } ${ s } ${ count === 1 ? emptyStr : 's' } ` ;
return ` ${
count === 0
? options . zero != null
? options . zero
: count
: options . number != null
? options . number
: count
} $ { count === 1 ? s : options.plural ? ? ` ${ s } ${ options . suffix ? ? 's' } ` } ` ;
}
export function padRightOrTruncate ( s : string , max : number , padding? : string , width? : number ) {
width = width ? ? getWidth ( s ) ;
if ( width < max ) return padRight ( s , max , padding , width ) ;
if ( width > max ) return truncate ( s , max ) ;
return s ;
}
export function pluralize (
s : string ,
count : number ,
options ? : { number ? : string ; plural? : string ; suffix? : string ; zero? : string } ,
) {
if ( options == null ) return ` ${ count } ${ s } ${ count === 1 ? emptyStr : 's' } ` ;
return ` ${
count === 0 ? ( options . zero != null ? options.zero : count ) : options . number != null ? options.number : count
} $ { count === 1 ? s : options.plural ? ? ` ${ s } ${ options . suffix ? ? 's' } ` } ` ;
}
// Removes \ / : * ? " < > | and C0 and C1 control codes
// eslint-disable-next-line no-control-regex
const illegalCharsForFSRegex = /[\\/:*?"<>|\x00-\x1f\x80-\x9f]/g ;
export function sanitizeForFileSystem ( s : string , replacement : string = '_' ) {
if ( ! s ) return s ;
return s . replace ( illegalCharsForFSRegex , replacement ) ;
}
export function sha1 ( s : string , encoding : HexBase64Latin1Encoding = 'base64' ) : string {
return createHash ( 'sha1' ) . update ( s ) . digest ( encoding ) ;
}
// Removes \ / : * ? " < > | and C0 and C1 control codes
// eslint-disable-next-line no-control-regex
const illegalCharsForFSRegex = /[\\/:*?"<>|\x00-\x1f\x80-\x9f]/g ;
export function splitLast ( s : string , splitter : string ) {
const index = s . lastIndexOf ( splitter ) ;
if ( index === - 1 ) return [ s ] ;
export function sanitizeForFileSystem ( s : string , replacement : string = '_' ) {
if ( ! s ) return s ;
return s . replace ( illegalCharsForFSRegex , replacement ) ;
return [ s . substr ( index ) , s . substring ( 0 , index - 1 ) ] ;
}
export function splitSingle ( s : string , splitter : string ) {
const parts = s . split ( splitter , 1 ) ;
const first = parts [ 0 ] ;
return first . length === s . length ? parts : [ first , s . substr ( first . length + 1 ) ] ;
}
export function truncate ( s : string , truncateTo : number , ellipsis : string = '\u2026' , width? : number ) {
if ( ! s ) return s ;
if ( truncateTo <= 1 ) return ellipsis ;
width = width ? ? getWidth ( s ) ;
if ( width <= truncateTo ) return s ;
if ( width === s . length ) return ` ${ s . substring ( 0 , truncateTo - 1 ) } ${ ellipsis } ` ;
// Skip ahead to start as far as we can by assuming all the double-width characters won't be truncated
let chars = Math . floor ( truncateTo / ( width / s . length ) ) ;
let count = getWidth ( s . substring ( 0 , chars ) ) ;
while ( count < truncateTo ) {
count += getWidth ( s [ chars ++ ] ) ;
}
export function sha1 ( s : string , encoding : HexBase64Latin1Encoding = 'base64' ) : string {
return createHash ( 'sha1' ) . update ( s ) . digest ( encoding ) ;
if ( count >= truncateTo ) {
chars -- ;
}
export function splitLast ( s : string , splitter : string ) {
const index = s . lastIndexOf ( splitter ) ;
if ( index === - 1 ) return [ s ] ;
return ` ${ s . substring ( 0 , chars ) } ${ ellipsis } ` ;
}
export function truncateLeft ( s : string , truncateTo : number , ellipsis : string = '\u2026' , width? : number ) {
if ( ! s ) return s ;
if ( truncateTo <= 1 ) return ellipsis ;
return [ s . substr ( index ) , s . substring ( 0 , index - 1 ) ] ;
width = width ? ? getWidth ( s ) ;
if ( width <= truncateTo ) return s ;
if ( width === s . length ) return ` ${ ellipsis } ${ s . substring ( width - truncateTo ) } ` ;
// Skip ahead to start as far as we can by assuming all the double-width characters won't be truncated
let chars = Math . floor ( truncateTo / ( width / s . length ) ) ;
let count = getWidth ( s . substring ( 0 , chars ) ) ;
while ( count < truncateTo ) {
count += getWidth ( s [ chars ++ ] ) ;
}
export function splitSingle ( s : string , splitter : string ) {
const parts = s . split ( splitter , 1 ) ;
const first = parts [ 0 ] ;
return first . length === s . length ? parts : [ first , s . substr ( first . length + 1 ) ] ;
if ( count >= truncateTo ) {
chars -- ;
}
export function truncate ( s : string , truncateTo : number , ellipsis : string = '\u2026' , width? : number ) {
if ( ! s ) return s ;
if ( truncateTo <= 1 ) return ellipsis ;
return ` ${ ellipsis } ${ s . substring ( s . length - chars ) } ` ;
}
width = width ? ? getWidth ( s ) ;
if ( width <= truncateTo ) return s ;
if ( width === s . length ) return ` ${ s . substring ( 0 , truncateTo - 1 ) } ${ ellipsis } ` ;
export function truncateMiddle ( s : string , truncateTo : number , ellipsis : string = '\u2026' ) {
if ( ! s ) return s ;
if ( truncateTo <= 1 ) return ellipsis ;
// Skip ahead to start as far as we can by assuming all the double-width characters won't be truncated
let chars = Math . floor ( truncateTo / ( width / s . length ) ) ;
let count = getWidth ( s . substring ( 0 , chars ) ) ;
while ( count < truncateTo ) {
count += getWidth ( s [ chars ++ ] ) ;
}
const width = getWidth ( s ) ;
if ( width <= truncateTo ) return s ;
if ( count >= truncateTo ) {
chars -- ;
}
return ` ${ s . slice ( 0 , Math . floor ( truncateTo / 2 ) - 1 ) } ${ ellipsis } ${ s . slice ( width - Math . ceil ( truncateTo / 2 ) ) } ` ;
}
return ` ${ s . substring ( 0 , chars ) } ${ ellipsis } ` ;
}
// Lifted from https://github.com/chalk/ansi-regex
// eslint-disable-next-line no-control-regex
const ansiRegex = /[\u001B\u009B][[\]()#;?]*(?:(?:(?:[a-zA-Z\d]*(?:;[-a-zA-Z\d/#&.:=?%@~_]*)*)?\u0007)|(?:(?:\d{1,4}(?:;\d{0,4})*)?[\dA-PR-TZcf-ntqry=><~]))/g ;
const containsNonAsciiRegex = /[^\x20-\x7F\u00a0\u2026]/ ;
export function truncateLeft ( s : string , truncateTo : number , ellipsis : string = '\u2026' , width? : number ) {
if ( ! s ) return s ;
if ( truncateTo <= 1 ) return ellipsis ;
export function getWidth ( s : string ) : number {
if ( s == null || s . length === 0 ) return 0 ;
width = width ? ? getWidth ( s ) ;
if ( width <= truncateTo ) return s ;
if ( width === s . length ) return ` ${ ellipsis } ${ s . substring ( width - truncateTo ) } ` ;
// Shortcut to avoid needless string `RegExp`s, replacements, and allocations
if ( ! containsNonAsciiRegex . test ( s ) ) return s . length ;
// Skip ahead to start as far as we can by assuming all the double-width characters won't be truncated
let chars = Math . floor ( truncateTo / ( width / s . length ) ) ;
let count = getWidth ( s . substring ( 0 , chars ) ) ;
while ( count < truncateTo ) {
count += getWidth ( s [ chars ++ ] ) ;
}
s = s . replace ( ansiRegex , emptyStr ) ;
if ( count >= truncateTo ) {
chars -- ;
}
let count = 0 ;
let emoji = 0 ;
let joiners = 0 ;
return ` ${ ellipsis } ${ s . substring ( s . length - chars ) } ` ;
}
const graphemes = [ . . . s ] ;
for ( let i = 0 ; i < graphemes . length ; i ++ ) {
const code = graphemes [ i ] . codePointAt ( 0 ) ! ;
export function truncateMiddle ( s : string , truncateTo : number , ellipsis : string = '\u2026' ) {
if ( ! s ) return s ;
if ( truncateTo <= 1 ) return ellipsis ;
// Ignore control characters
if ( code <= 0x1f || ( code >= 0x7f && code <= 0x9f ) ) continue ;
const width = getWidth ( s ) ;
if ( width <= truncateTo ) return s ;
// Ignore combining characters
if ( code >= 0x300 && code <= 0x36f ) continue ;
return ` ${ s . slice ( 0 , Math . floor ( truncateTo / 2 ) - 1 ) } ${ ellipsis } ${ s . slice ( width - Math . ceil ( truncateTo / 2 ) ) } ` ;
}
// https://stackoverflow.com/questions/30757193/find-out-if-character-in-string-is-emoji
if (
( code >= 0x1f600 && code <= 0x1f64f ) || // Emoticons
( code >= 0x1f300 && code <= 0x1f5ff ) || // Misc Symbols and Pictographs
( code >= 0x1f680 && code <= 0x1f6ff ) || // Transport and Map
( code >= 0x2600 && code <= 0x26ff ) || // Misc symbols
( code >= 0x2700 && code <= 0x27bf ) || // Dingbats
( code >= 0xfe00 && code <= 0xfe0f ) || // Variation Selectors
( code >= 0x1f900 && code <= 0x1f9ff ) || // Supplemental Symbols and Pictographs
( code >= 65024 && code <= 65039 ) || // Variation selector
( code >= 8400 && code <= 8447 ) // Combining Diacritical Marks for Symbols
) {
if ( code >= 0x1f3fb && code <= 0x1f3ff ) continue ; // emoji modifier fitzpatrick type
// Lifted from https://github.com/chalk/ansi-regex
// eslint-disable-next-line no-control-regex
const ansiRegex = /[\u001B\u009B][[\]()#;?]*(?:(?:(?:[a-zA-Z\d]*(?:;[-a-zA-Z\d/#&.:=?%@~_]*)*)?\u0007)|(?:(?:\d{1,4}(?:;\d{0,4})*)?[\dA-PR-TZcf-ntqry=><~]))/g ;
const containsNonAsciiRegex = /[^\x20-\x7F\u00a0\u2026]/ ;
export function getWidth ( s : string ) : number {
if ( s == null || s . length === 0 ) return 0 ;
// Shortcut to avoid needless string `RegExp`s, replacements, and allocations
if ( ! containsNonAsciiRegex . test ( s ) ) return s . length ;
s = s . replace ( ansiRegex , emptyStr ) ;
let count = 0 ;
let emoji = 0 ;
let joiners = 0 ;
const graphemes = [ . . . s ] ;
for ( let i = 0 ; i < graphemes . length ; i ++ ) {
const code = graphemes [ i ] . codePointAt ( 0 ) ! ;
// Ignore control characters
if ( code <= 0x1f || ( code >= 0x7f && code <= 0x9f ) ) continue ;
// Ignore combining characters
if ( code >= 0x300 && code <= 0x36f ) continue ;
// https://stackoverflow.com/questions/30757193/find-out-if-character-in-string-is-emoji
if (
( code >= 0x1f600 && code <= 0x1f64f ) || // Emoticons
( code >= 0x1f300 && code <= 0x1f5ff ) || // Misc Symbols and Pictographs
( code >= 0x1f680 && code <= 0x1f6ff ) || // Transport and Map
( code >= 0x2600 && code <= 0x26ff ) || // Misc symbols
( code >= 0x2700 && code <= 0x27bf ) || // Dingbats
( code >= 0xfe00 && code <= 0xfe0f ) || // Variation Selectors
( code >= 0x1f900 && code <= 0x1f9ff ) || // Supplemental Symbols and Pictographs
( code >= 65024 && code <= 65039 ) || // Variation selector
( code >= 8400 && code <= 8447 ) // Combining Diacritical Marks for Symbols
) {
if ( code >= 0x1f3fb && code <= 0x1f3ff ) continue ; // emoji modifier fitzpatrick type
emoji ++ ;
count += 2 ;
continue ;
}
// Ignore zero-width joiners '\u200d'
if ( code === 8205 ) {
joiners ++ ;
count -= 2 ;
continue ;
}
// Surrogates
if ( code > 0xffff ) {
i ++ ;
}
count += isFullwidthCodePoint ( code ) ? 2 : 1 ;
emoji ++ ;
count += 2 ;
continue ;
}
const offset = emoji - joiners ;
if ( offset > 1 ) {
count += offset - 1 ;
// Ignore zero-width joiners '\u200d'
if ( code === 8205 ) {
joiners ++ ;
count -= 2 ;
continue ;
}
return count ;
}
function isFullwidthCodePoint ( cp : number ) {
// code points are derived from:
// http://www.unix.org/Public/UNIDATA/EastAsianWidth.txt
if (
cp >= 0x1100 &&
( cp <= 0x115f || // Hangul Jamo
cp === 0x2329 || // LEFT-POINTING ANGLE BRACKET
cp === 0x232a || // RIGHT-POINTING ANGLE BRACKET
// CJK Radicals Supplement .. Enclosed CJK Letters and Months
( cp >= 0x2e80 && cp <= 0x3247 && cp !== 0x303f ) ||
// Enclosed CJK Letters and Months .. CJK Unified Ideographs Extension A
( cp >= 0x3250 && cp <= 0x4dbf ) ||
// CJK Unified Ideographs .. Yi Radicals
( cp >= 0x4e00 && cp <= 0xa4c6 ) ||
// Hangul Jamo Extended-A
( cp >= 0xa960 && cp <= 0xa97c ) ||
// Hangul Syllables
( cp >= 0xac00 && cp <= 0xd7a3 ) ||
// CJK Compatibility Ideographs
( cp >= 0xf900 && cp <= 0xfaff ) ||
// Vertical Forms
( cp >= 0xfe10 && cp <= 0xfe19 ) ||
// CJK Compatibility Forms .. Small Form Variants
( cp >= 0xfe30 && cp <= 0xfe6b ) ||
// Halfwidth and Fullwidth Forms
( cp >= 0xff01 && cp <= 0xff60 ) ||
( cp >= 0xffe0 && cp <= 0xffe6 ) ||
// Kana Supplement
( cp >= 0x1b000 && cp <= 0x1b001 ) ||
// Enclosed Ideographic Supplement
( cp >= 0x1f200 && cp <= 0x1f251 ) ||
// CJK Unified Ideographs Extension B .. Tertiary Ideographic Plane
( cp >= 0x20000 && cp <= 0x3fffd ) )
) {
return true ;
// Surrogates
if ( code > 0xffff ) {
i ++ ;
}
return false ;
count += isFullwidthCodePoint ( code ) ? 2 : 1 ;
}
const offset = emoji - joiners ;
if ( offset > 1 ) {
count += offset - 1 ;
}
return count ;
}
function isFullwidthCodePoint ( cp : number ) {
// code points are derived from:
// http://www.unix.org/Public/UNIDATA/EastAsianWidth.txt
if (
cp >= 0x1100 &&
( cp <= 0x115f || // Hangul Jamo
cp === 0x2329 || // LEFT-POINTING ANGLE BRACKET
cp === 0x232a || // RIGHT-POINTING ANGLE BRACKET
// CJK Radicals Supplement .. Enclosed CJK Letters and Months
( cp >= 0x2e80 && cp <= 0x3247 && cp !== 0x303f ) ||
// Enclosed CJK Letters and Months .. CJK Unified Ideographs Extension A
( cp >= 0x3250 && cp <= 0x4dbf ) ||
// CJK Unified Ideographs .. Yi Radicals
( cp >= 0x4e00 && cp <= 0xa4c6 ) ||
// Hangul Jamo Extended-A
( cp >= 0xa960 && cp <= 0xa97c ) ||
// Hangul Syllables
( cp >= 0xac00 && cp <= 0xd7a3 ) ||
// CJK Compatibility Ideographs
( cp >= 0xf900 && cp <= 0xfaff ) ||
// Vertical Forms
( cp >= 0xfe10 && cp <= 0xfe19 ) ||
// CJK Compatibility Forms .. Small Form Variants
( cp >= 0xfe30 && cp <= 0xfe6b ) ||
// Halfwidth and Fullwidth Forms
( cp >= 0xff01 && cp <= 0xff60 ) ||
( cp >= 0xffe0 && cp <= 0xffe6 ) ||
// Kana Supplement
( cp >= 0x1b000 && cp <= 0x1b001 ) ||
// Enclosed Ideographic Supplement
( cp >= 0x1f200 && cp <= 0x1f251 ) ||
// CJK Unified Ideographs Extension B .. Tertiary Ideographic Plane
( cp >= 0x20000 && cp <= 0x3fffd ) )
) {
return true ;
}
return false ;
}
Eric Amodio
4 years ago