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author | 2020-11-18 23:26:45 +0100 | |
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committer | 2020-11-18 23:26:45 +0100 | |
commit | 81ddf9b700bc48a1f8e472209f080f9c1d9a9b09 (patch) | |
tree | 8b959d50c5a614cbf9fcb346ed556140374d4b6d /node_modules/ret/lib/util.js | |
parent | 1870f3fdf43707a15fda0f609a021f516f45eb63 (diff) | |
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rm node_modules
Diffstat (limited to 'node_modules/ret/lib/util.js')
-rw-r--r-- | node_modules/ret/lib/util.js | 111 |
1 files changed, 0 insertions, 111 deletions
diff --git a/node_modules/ret/lib/util.js b/node_modules/ret/lib/util.js deleted file mode 100644 index 97d8cf5..0000000 --- a/node_modules/ret/lib/util.js +++ /dev/null @@ -1,111 +0,0 @@ -var types = require('./types'); -var sets = require('./sets'); - - -// All of these are private and only used by randexp. -// It's assumed that they will always be called with the correct input. - -var CTRL = '@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^ ?'; -var SLSH = { '0': 0, 't': 9, 'n': 10, 'v': 11, 'f': 12, 'r': 13 }; - -/** - * Finds character representations in str and convert all to - * their respective characters - * - * @param {String} str - * @return {String} - */ -exports.strToChars = function(str) { - /* jshint maxlen: false */ - var chars_regex = /(\[\\b\])|(\\)?\\(?:u([A-F0-9]{4})|x([A-F0-9]{2})|(0?[0-7]{2})|c([@A-Z\[\\\]\^?])|([0tnvfr]))/g; - str = str.replace(chars_regex, function(s, b, lbs, a16, b16, c8, dctrl, eslsh) { - if (lbs) { - return s; - } - - var code = b ? 8 : - a16 ? parseInt(a16, 16) : - b16 ? parseInt(b16, 16) : - c8 ? parseInt(c8, 8) : - dctrl ? CTRL.indexOf(dctrl) : - SLSH[eslsh]; - - var c = String.fromCharCode(code); - - // Escape special regex characters. - if (/[\[\]{}\^$.|?*+()]/.test(c)) { - c = '\\' + c; - } - - return c; - }); - - return str; -}; - - -/** - * turns class into tokens - * reads str until it encounters a ] not preceeded by a \ - * - * @param {String} str - * @param {String} regexpStr - * @return {Array.<Array.<Object>, Number>} - */ -exports.tokenizeClass = function(str, regexpStr) { - /* jshint maxlen: false */ - var tokens = []; - var regexp = /\\(?:(w)|(d)|(s)|(W)|(D)|(S))|((?:(?:\\)(.)|([^\]\\]))-(?:\\)?([^\]]))|(\])|(?:\\)?(.)/g; - var rs, c; - - - while ((rs = regexp.exec(str)) != null) { - if (rs[1]) { - tokens.push(sets.words()); - - } else if (rs[2]) { - tokens.push(sets.ints()); - - } else if (rs[3]) { - tokens.push(sets.whitespace()); - - } else if (rs[4]) { - tokens.push(sets.notWords()); - - } else if (rs[5]) { - tokens.push(sets.notInts()); - - } else if (rs[6]) { - tokens.push(sets.notWhitespace()); - - } else if (rs[7]) { - tokens.push({ - type: types.RANGE, - from: (rs[8] || rs[9]).charCodeAt(0), - to: rs[10].charCodeAt(0), - }); - - } else if (c = rs[12]) { - tokens.push({ - type: types.CHAR, - value: c.charCodeAt(0), - }); - - } else { - return [tokens, regexp.lastIndex]; - } - } - - exports.error(regexpStr, 'Unterminated character class'); -}; - - -/** - * Shortcut to throw errors. - * - * @param {String} regexp - * @param {String} msg - */ -exports.error = function(regexp, msg) { - throw new SyntaxError('Invalid regular expression: /' + regexp + '/: ' + msg); -}; |