Prism.languages.erlang = { 'comment': /%.+/, 'string': { pattern: /"(?:\\.|[^\\"\r\n])*"/, greedy: true }, 'quoted-function': { pattern: /'(?:\\.|[^\\'\r\n])+'(?=\()/, alias: 'function' }, 'quoted-atom': { pattern: /'(?:\\.|[^\\'\r\n])+'/, alias: 'atom' }, 'boolean': /\b(?:false|true)\b/, 'keyword': /\b(?:after|begin|case|catch|end|fun|if|of|receive|try|when)\b/, 'number': [ /\$\\?./, /\b\d+#[a-z0-9]+/i, /(?:\b\d+(?:\.\d*)?|\B\.\d+)(?:e[+-]?\d+)?/i ], 'function': /\b[a-z][\w@]*(?=\()/, 'variable': { // Look-behind is used to prevent wrong highlighting of atoms containing "@" pattern: /(^|[^@])(?:\b|\?)[A-Z_][\w@]*/, lookbehind: true }, 'operator': [ /[=\/<>:]=|=[:\/]=|\+\+?|--?|[=*\/!]|\b(?:and|andalso|band|bnot|bor|bsl|bsr|bxor|div|not|or|orelse|rem|xor)\b/, { // We don't want to match << pattern: /(^|[^<])<(?!<)/, lookbehind: true }, { // We don't want to match >> pattern: /(^|[^>])>(?!>)/, lookbehind: true } ], 'atom': /\b[a-z][\w@]*/, 'punctuation': /[()[\]{}:;,.#|]|<<|>>/ };