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characters : [ characters ];\r\n\tfor(;;) {\r\n\t\tlet found = false;\r\n\t\tfor( let char of chars ) {\r\n\t\t\tconst len = matchLen( s, char );\r\n\t\t\tif( len ) {\r\n\t\t\t\ts = s.slice( len );\r\n\t\t\t\tfound = true;\r\n\t\t\t\tbreak;\r\n\t\t\t}\r\n\t\t}\r\n\t\tif( !found ) break;\r\n\t}\r\n\treturn s;\r\n}\r\n\r\nexport function trimRight( v: string, characters: string|Array<string> = whitespaceChars ) {\r\n\tlet s = ( v || '' ).toString();\r\n\tfunction matchLen( s1: string, s2: string ) {\r\n\t\tconst sub = s1.slice( -s2.length );\r\n\t\tif( sub === s2 ) return sub.length;\r\n\t\telse return 0;\r\n\t}\r\n\tconst chars = Array.isArray( characters ) ? characters : [ characters ];\r\n\tfor(;;) {\r\n\t\tlet found = false;\r\n\t\tfor( let char of chars ) {\r\n\t\t\tconst len = matchLen( s, char );\r\n\t\t\tif( len ) {\r\n\t\t\t\ts = s.slice( 0, -len );\r\n\t\t\t\tfound = true;\r\n\t\t\t\tbreak;\r\n\t\t\t}\r\n\t\t}\r\n\t\tif( !found ) break;\r\n\t}\r\n\treturn s;\r\n}\r\n\r\nexport function trim( v: string, characters: string|Array<string> = whitespaceChars ) {\r\n\treturn trimRight( trimLeft( v, characters ), characters );\r\n}\r\n\r\nexport function padLeft( v: string|number, length: number, character: string ) {\r\n\tlet s = v.toString();\r\n\tif( !s ) s = '';\r\n\tif( s.length > length ) return s;\r\n\twhile( s.length < length ) s = character + s;\r\n\treturn s.slice( -length );\r\n}\r\n\r\nexport function padLeftMultiple( v: string|number, multiple: number, character: string ) {\r\n\tlet s = v.toString();\r\n\tif( !s ) s = '';\r\n\twhile( ( s.length % multiple ) > 0 ) s = character + s;\r\n\treturn s.slice( -length );\r\n}\r\n\r\nexport function padRight( v: string|number, length: number, character: string ) {\r\n\tlet s = v.toString();\r\n\tif( !s ) s = '';\r\n\tif( s.length > length ) return s;\r\n\twhile( s.length < length ) s = s + character;\r\n\treturn s.slice( 0, length );\r\n}\r\n\r\nexport function padRightMultiple( v: string|number, multiple: number, character: string ) {\r\n\tlet s = ( v || '' ).toString();\r\n\twhile( ( s.length % multiple ) > 0 ) s = s + character;\r\n\treturn s.slice( 0, length );\r\n}\r\n\r\nfunction splitImpl( str: string, index: number, length: number, escape = ( s: string ) => s ) {\r\n\tlet retval: Array<string>;\r\n\r\n\tif( index < 0 || !isFinite( index ) ) retval = [ str ];\r\n\telse retval = [ str.slice( 0, index ), str.slice( index + length ) ];\r\n\r\n\treturn retval.map( escape );\r\n}\r\n\r\nexport function splitFirst( str: string, sep: string, escape?: ( str: string ) => string ) {\r\n\treturn splitImpl( str, str.indexOf( sep ), sep.length, escape );\r\n}\r\n\r\nexport function splitLast( str: string, sep: string, escape?: ( str: string ) => string ) {\r\n\treturn splitImpl( str, str.lastIndexOf( sep ), sep.length, escape );\r\n}\r\n\r\nexport function textBeforeFirst( str: string, sep: string ) {\r\n\treturn splitFirst( str, sep )[ 0 ];\r\n}\r\n\r\nexport function textBeforeLast( str: string, sep: string ) {\r\n\treturn splitLast( str, sep )[ 0 ];\r\n}\r\n\r\nexport function textAfterFirst( str: string, sep: string ) {\r\n\treturn splitFirst( str, sep )[ 1 ];\r\n}\r\n\r\nexport function textAfterLast( str: string, sep: string ) {\r\n\treturn splitLast( str, sep )[ 1 ];\r\n}"]}