1 | /* |
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2 | Input Mask plugin extensions |
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3 | http://github.com/RobinHerbots/jquery.inputmask |
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4 | Copyright (c) 2010 - 2014 Robin Herbots |
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5 | Licensed under the MIT license (http://www.opensource.org/licenses/mit-license.php) |
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6 | Version: 0.0.0 |
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7 | |
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8 | Regex extensions on the jquery.inputmask base |
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9 | Allows for using regular expressions as a mask |
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10 | */ |
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11 | (function ($) { |
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12 | $.extend($.inputmask.defaults.aliases, { // $(selector).inputmask("Regex", { regex: "[0-9]*"} |
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13 | 'Regex': { |
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14 | mask: "r", |
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15 | greedy: false, |
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16 | repeat: "*", |
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17 | regex: null, |
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18 | regexTokens: null, |
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19 | //Thx to https://github.com/slevithan/regex-colorizer for the tokenizer regex |
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20 | tokenizer: /\[\^?]?(?:[^\\\]]+|\\[\S\s]?)*]?|\\(?:0(?:[0-3][0-7]{0,2}|[4-7][0-7]?)?|[1-9][0-9]*|x[0-9A-Fa-f]{2}|u[0-9A-Fa-f]{4}|c[A-Za-z]|[\S\s]?)|\((?:\?[:=!]?)?|(?:[?*+]|\{[0-9]+(?:,[0-9]*)?\})\??|[^.?*+^${[()|\\]+|./g, |
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21 | quantifierFilter: /[0-9]+[^,]/, |
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22 | definitions: { |
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23 | 'r': { |
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24 | validator: function (chrs, buffer, pos, strict, opts) { |
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25 | function regexToken() { |
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26 | this.matches = []; |
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27 | this.isGroup = false; |
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28 | this.isQuantifier = false; |
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29 | this.isLiteral = false; |
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30 | } |
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31 | function analyseRegex() { |
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32 | var currentToken = new regexToken(), match, m, opengroups = []; |
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33 | |
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34 | opts.regexTokens = []; |
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35 | |
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36 | // The tokenizer regex does most of the tokenization grunt work |
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37 | while (match = opts.tokenizer.exec(opts.regex)) { |
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38 | m = match[0]; |
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39 | switch (m.charAt(0)) { |
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40 | case "[": // Character class |
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41 | case "\\": // Escape or backreference |
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42 | if (opengroups.length > 0) { |
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43 | opengroups[opengroups.length - 1]["matches"].push(m); |
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44 | } else { |
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45 | currentToken.matches.push(m); |
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46 | } |
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47 | break; |
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48 | case "(": // Group opening |
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49 | if (!currentToken.isGroup && currentToken.matches.length > 0) |
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50 | opts.regexTokens.push(currentToken); |
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51 | currentToken = new regexToken(); |
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52 | currentToken.isGroup = true; |
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53 | opengroups.push(currentToken); |
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54 | break; |
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55 | case ")": // Group closing |
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56 | var groupToken = opengroups.pop(); |
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57 | if (opengroups.length > 0) { |
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58 | opengroups[opengroups.length - 1]["matches"].push(groupToken); |
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59 | } else { |
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60 | opts.regexTokens.push(groupToken); |
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61 | currentToken = new regexToken(); |
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62 | } |
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63 | break; |
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64 | case "{": //Quantifier |
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65 | var quantifier = new regexToken(); |
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66 | quantifier.isQuantifier = true; |
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67 | quantifier.matches.push(m); |
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68 | if (opengroups.length > 0) { |
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69 | opengroups[opengroups.length - 1]["matches"].push(quantifier); |
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70 | } else { |
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71 | currentToken.matches.push(quantifier); |
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72 | } |
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73 | break; |
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74 | default: |
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75 | // Vertical bar (alternator) |
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76 | // ^ or $ anchor |
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77 | // Dot (.) |
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78 | // Literal character sequence |
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79 | var literal = new regexToken(); |
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80 | literal.isLiteral = true; |
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81 | literal.matches.push(m); |
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82 | if (opengroups.length > 0) { |
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83 | opengroups[opengroups.length - 1]["matches"].push(literal); |
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84 | } else { |
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85 | currentToken.matches.push(literal); |
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86 | } |
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87 | } |
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88 | } |
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89 | |
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90 | if (currentToken.matches.length > 0) |
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91 | opts.regexTokens.push(currentToken); |
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92 | } |
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93 | function validateRegexToken(token, fromGroup) { |
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94 | var isvalid = false; |
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95 | if (fromGroup) { |
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96 | regexPart += "("; |
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97 | openGroupCount++; |
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98 | } |
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99 | for (var mndx = 0; mndx < token["matches"].length; mndx++) { |
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100 | var matchToken = token["matches"][mndx]; |
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101 | if (matchToken["isGroup"] == true) { |
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102 | isvalid = validateRegexToken(matchToken, true); |
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103 | } else if (matchToken["isQuantifier"] == true) { |
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104 | matchToken = matchToken["matches"][0]; |
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105 | var quantifierMax = opts.quantifierFilter.exec(matchToken)[0].replace("}", ""); |
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106 | var testExp = regexPart + "{1," + quantifierMax + "}"; //relax quantifier validation |
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107 | for (var j = 0; j < openGroupCount; j++) { |
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108 | testExp += ")"; |
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109 | } |
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110 | var exp = new RegExp("^(" + testExp + ")$"); |
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111 | isvalid = exp.test(bufferStr); |
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112 | regexPart += matchToken; |
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113 | } else if (matchToken["isLiteral"] == true) { |
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114 | matchToken = matchToken["matches"][0]; |
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115 | var testExp = regexPart, openGroupCloser = ""; |
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116 | for (var j = 0; j < openGroupCount; j++) { |
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117 | openGroupCloser += ")"; |
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118 | } |
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119 | for (var k = 0; k < matchToken.length; k++) { //relax literal validation |
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120 | testExp = (testExp + matchToken[k]).replace(/\|$/, ""); |
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121 | var exp = new RegExp("^(" + testExp + openGroupCloser + ")$"); |
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122 | isvalid = exp.test(bufferStr); |
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123 | if (isvalid) break; |
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124 | } |
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125 | regexPart += matchToken; |
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126 | //console.log(bufferStr + " " + exp + " " + isvalid); |
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127 | } else { |
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128 | regexPart += matchToken; |
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129 | var testExp = regexPart.replace(/\|$/, ""); |
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130 | for (var j = 0; j < openGroupCount; j++) { |
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131 | testExp += ")"; |
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132 | } |
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133 | var exp = new RegExp("^(" + testExp + ")$"); |
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134 | isvalid = exp.test(bufferStr); |
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135 | //console.log(bufferStr + " " + exp + " " + isvalid); |
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136 | } |
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137 | if (isvalid) break; |
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138 | } |
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139 | |
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140 | if (fromGroup) { |
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141 | regexPart += ")"; |
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142 | openGroupCount--; |
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143 | } |
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144 | |
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145 | return isvalid; |
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146 | } |
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147 | |
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148 | |
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149 | if (opts.regexTokens == null) { |
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150 | analyseRegex(); |
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151 | } |
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152 | |
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153 | var cbuffer = buffer.slice(), regexPart = "", isValid = false, openGroupCount = 0; |
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154 | cbuffer.splice(pos, 0, chrs); |
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155 | var bufferStr = cbuffer.join(''); |
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156 | for (var i = 0; i < opts.regexTokens.length; i++) { |
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157 | var regexToken = opts.regexTokens[i]; |
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158 | isValid = validateRegexToken(regexToken, regexToken["isGroup"]); |
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159 | if (isValid) break; |
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160 | } |
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161 | |
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162 | return isValid; |
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163 | }, |
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164 | cardinality: 1 |
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165 | } |
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166 | } |
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167 | } |
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168 | }); |
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169 | })(jQuery); |
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