1 | /// |
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2 | // \amd-mid uild/stringify |
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3 | // |
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4 | define(["dojo"], function(dojo) { |
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5 | var |
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6 | spaces= " ", |
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7 | indentFactor= 2, |
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8 | |
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9 | setIndentFactor= function(factor) { |
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10 | indentFactor= factor; |
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11 | }, |
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12 | |
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13 | indent= function(n, factor) { |
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14 | n= n * (factor || indentFactor); |
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15 | while (spaces.length<n) spaces+= spaces; |
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16 | return spaces.substring(0, n); |
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17 | }, |
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18 | |
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19 | propName= function(name) { |
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20 | return /^[\w\$]+$/.test(name) ? |
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21 | name + ":" : |
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22 | "'" + name + "':"; |
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23 | }, |
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24 | |
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25 | text, |
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26 | unsolved, |
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27 | |
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28 | split= function( |
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29 | text //(string) Text to split into lines. |
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30 | ) { |
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31 | /// |
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32 | // Split text into a vector lines as given by new-line indicators contained in text |
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33 | /// |
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34 | // Three-step algorithm: |
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35 | // * turn CR-LF or LF-CR into simple LF |
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36 | // * turn lone CR into LF |
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37 | // * then split on LF |
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38 | // |
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39 | // This should be platform-independent |
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40 | return text.replace(/(\r\n)|(\n\r)/g, "\n").replace(/\r/, "\n").split("\n"); |
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41 | }, |
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42 | |
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43 | stringify= function(it, level) { |
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44 | if (!level) { |
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45 | text= ""; |
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46 | unsolved= false; |
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47 | level= 1; |
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48 | } else { |
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49 | level++; |
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50 | } |
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51 | var temp, space, p, i; |
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52 | switch (typeof it) { |
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53 | case "undefined": |
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54 | text+= "undefined"; |
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55 | break; |
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56 | |
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57 | case "boolean": |
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58 | text+= (it ? "true" : "false"); |
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59 | break; |
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60 | |
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61 | case "number": |
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62 | text+= it.toString(); |
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63 | break; |
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64 | |
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65 | case "string": |
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66 | text+= dojo.toJson(it); |
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67 | break; |
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68 | |
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69 | case "object": |
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70 | if (it===null) { |
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71 | text+= "null"; |
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72 | } else if (it instanceof RegExp) { |
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73 | text+= RegExp.toString(); |
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74 | } else if (it instanceof Array) { |
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75 | if (it.length>1) { |
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76 | text+= "[\n"; |
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77 | for (i= 0; i<it.length-1; i++) { |
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78 | text+= indent(level); |
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79 | stringify(it[i], level); |
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80 | text+= ",\n"; |
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81 | } |
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82 | text+= indent(level); |
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83 | stringify(it[i], level); |
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84 | text+= "\n" + indent(level-1) + "]"; |
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85 | } else if (it.length) { |
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86 | text+= "["; |
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87 | stringify(it[0], level); |
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88 | text+= "]"; |
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89 | } else { |
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90 | text+= "[]"; |
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91 | } |
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92 | } else { |
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93 | temp= []; |
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94 | for (p in it) temp.push(p); |
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95 | temp.sort(); |
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96 | if (temp.length>1) { |
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97 | text+= "{\n"; |
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98 | for (i= 0; i<temp.length-1; i++) { |
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99 | text+= indent(level) + propName(temp[i]); |
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100 | stringify(it[temp[i]], level); |
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101 | text+= ",\n"; |
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102 | } |
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103 | text+= indent(level) + propName(temp[i]); |
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104 | stringify(it[temp[i]], level); |
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105 | text+= "\n"; |
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106 | text+= indent(level-1) + "}"; |
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107 | } else if (temp.length) { |
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108 | text+= "{" + propName(temp[0]); |
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109 | stringify(it[temp[0]], level); |
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110 | text+= "}"; |
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111 | } else { |
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112 | text+= "{}"; |
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113 | } |
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114 | } |
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115 | break; |
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116 | |
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117 | case "function": |
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118 | space= indent(level); |
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119 | // the V8 engine seems to strip the leading space from the first line of the function?!? |
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120 | var |
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121 | functionText= split(it.toString()), |
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122 | firstLine= functionText.shift(), |
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123 | minSpaces= Number.MAX_VALUE; |
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124 | functionText.forEach(function(line) { |
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125 | // ignoring lines that have no non-space chars |
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126 | var match= line.match(/(\s*)\S/); |
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127 | if (match) minSpaces= Math.min(minSpaces, match[1].length); |
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128 | }); |
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129 | if (minSpaces==Number.MAX_VALUE) { |
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130 | //every line started without any spaces and we never got a match |
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131 | minSpaces= 0; |
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132 | } |
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133 | functionText.unshift(indent(minSpaces, 1) + firstLine); |
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134 | //every line has at least minSpaces indentation... |
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135 | text+= "\n" + functionText.map(function(line) { return space + line.substring(minSpaces); }).join("\n"); |
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136 | break; |
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137 | |
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138 | default: |
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139 | text+= "undefined /* unsolved */"; |
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140 | unsolved= true; |
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141 | } |
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142 | text.unsolved= unsolved; |
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143 | return text; |
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144 | }; |
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145 | |
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146 | stringify.setIndentFactor= setIndentFactor; |
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147 | stringify.split= split; |
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148 | return stringify; |
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149 | |
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150 | }); |
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