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1 // CodeMirror, copyright (c) by Marijn Haverbeke and others
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2 // Distributed under an MIT license: https://codemirror.net/5/LICENSE
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3
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4 /**********************************************************
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5 * This script provides syntax highlighting support for
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6 * the N-Triples format.
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7 * N-Triples format specification:
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8 * https://www.w3.org/TR/n-triples/
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9 ***********************************************************/
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10
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11 /*
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12 The following expression defines the defined ASF grammar transitions.
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13
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14 pre_subject ->
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15 {
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16 ( writing_subject_uri | writing_bnode_uri )
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17 -> pre_predicate
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18 -> writing_predicate_uri
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19 -> pre_object
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20 -> writing_object_uri | writing_object_bnode |
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21 (
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22 writing_object_literal
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23 -> writing_literal_lang | writing_literal_type
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24 )
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25 -> post_object
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26 -> BEGIN
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27 } otherwise {
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28 -> ERROR
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29 }
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30 */
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31
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32 (function(mod) {
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33 if (typeof exports == "object" && typeof module == "object") // CommonJS
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34 mod(require("../../lib/codemirror"));
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35 else if (typeof define == "function" && define.amd) // AMD
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36 define(["../../lib/codemirror"], mod);
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37 else // Plain browser env
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38 mod(CodeMirror);
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39 })(function(CodeMirror) {
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40 "use strict";
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41
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42 CodeMirror.defineMode("ntriples", function() {
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43
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44 var Location = {
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45 PRE_SUBJECT : 0,
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46 WRITING_SUB_URI : 1,
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47 WRITING_BNODE_URI : 2,
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48 PRE_PRED : 3,
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49 WRITING_PRED_URI : 4,
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50 PRE_OBJ : 5,
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51 WRITING_OBJ_URI : 6,
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52 WRITING_OBJ_BNODE : 7,
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53 WRITING_OBJ_LITERAL : 8,
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54 WRITING_LIT_LANG : 9,
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55 WRITING_LIT_TYPE : 10,
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56 POST_OBJ : 11,
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57 ERROR : 12
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58 };
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59 function transitState(currState, c) {
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60 var currLocation = currState.location;
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61 var ret;
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62
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63 // Opening.
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64 if (currLocation == Location.PRE_SUBJECT && c == '<') ret = Location.WRITING_SUB_URI;
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65 else if(currLocation == Location.PRE_SUBJECT && c == '_') ret = Location.WRITING_BNODE_URI;
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66 else if(currLocation == Location.PRE_PRED && c == '<') ret = Location.WRITING_PRED_URI;
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67 else if(currLocation == Location.PRE_OBJ && c == '<') ret = Location.WRITING_OBJ_URI;
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68 else if(currLocation == Location.PRE_OBJ && c == '_') ret = Location.WRITING_OBJ_BNODE;
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69 else if(currLocation == Location.PRE_OBJ && c == '"') ret = Location.WRITING_OBJ_LITERAL;
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70
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71 // Closing.
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72 else if(currLocation == Location.WRITING_SUB_URI && c == '>') ret = Location.PRE_PRED;
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73 else if(currLocation == Location.WRITING_BNODE_URI && c == ' ') ret = Location.PRE_PRED;
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74 else if(currLocation == Location.WRITING_PRED_URI && c == '>') ret = Location.PRE_OBJ;
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75 else if(currLocation == Location.WRITING_OBJ_URI && c == '>') ret = Location.POST_OBJ;
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76 else if(currLocation == Location.WRITING_OBJ_BNODE && c == ' ') ret = Location.POST_OBJ;
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77 else if(currLocation == Location.WRITING_OBJ_LITERAL && c == '"') ret = Location.POST_OBJ;
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78 else if(currLocation == Location.WRITING_LIT_LANG && c == ' ') ret = Location.POST_OBJ;
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79 else if(currLocation == Location.WRITING_LIT_TYPE && c == '>') ret = Location.POST_OBJ;
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80
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81 // Closing typed and language literal.
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82 else if(currLocation == Location.WRITING_OBJ_LITERAL && c == '@') ret = Location.WRITING_LIT_LANG;
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83 else if(currLocation == Location.WRITING_OBJ_LITERAL && c == '^') ret = Location.WRITING_LIT_TYPE;
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84
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85 // Spaces.
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86 else if( c == ' ' &&
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87 (
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88 currLocation == Location.PRE_SUBJECT ||
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89 currLocation == Location.PRE_PRED ||
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90 currLocation == Location.PRE_OBJ ||
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91 currLocation == Location.POST_OBJ
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92 )
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93 ) ret = currLocation;
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94
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95 // Reset.
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96 else if(currLocation == Location.POST_OBJ && c == '.') ret = Location.PRE_SUBJECT;
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97
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98 // Error
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99 else ret = Location.ERROR;
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100
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101 currState.location=ret;
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102 }
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103
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104 return {
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105 startState: function() {
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106 return {
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107 location : Location.PRE_SUBJECT,
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108 uris : [],
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109 anchors : [],
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110 bnodes : [],
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111 langs : [],
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112 types : []
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113 };
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114 },
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115 token: function(stream, state) {
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116 var ch = stream.next();
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117 if(ch == '<') {
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118 transitState(state, ch);
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119 var parsedURI = '';
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120 stream.eatWhile( function(c) { if( c != '#' && c != '>' ) { parsedURI += c; return true; } return false;} );
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121 state.uris.push(parsedURI);
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122 if( stream.match('#', false) ) return 'variable';
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123 stream.next();
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124 transitState(state, '>');
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125 return 'variable';
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126 }
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127 if(ch == '#') {
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128 var parsedAnchor = '';
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129 stream.eatWhile(function(c) { if(c != '>' && c != ' ') { parsedAnchor+= c; return true; } return false;});
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130 state.anchors.push(parsedAnchor);
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131 return 'variable-2';
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132 }
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133 if(ch == '>') {
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134 transitState(state, '>');
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135 return 'variable';
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136 }
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137 if(ch == '_') {
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138 transitState(state, ch);
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139 var parsedBNode = '';
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140 stream.eatWhile(function(c) { if( c != ' ' ) { parsedBNode += c; return true; } return false;});
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141 state.bnodes.push(parsedBNode);
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142 stream.next();
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143 transitState(state, ' ');
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144 return 'builtin';
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145 }
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146 if(ch == '"') {
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147 transitState(state, ch);
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148 stream.eatWhile( function(c) { return c != '"'; } );
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149 stream.next();
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150 if( stream.peek() != '@' && stream.peek() != '^' ) {
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151 transitState(state, '"');
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152 }
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153 return 'string';
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154 }
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155 if( ch == '@' ) {
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156 transitState(state, '@');
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157 var parsedLang = '';
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158 stream.eatWhile(function(c) { if( c != ' ' ) { parsedLang += c; return true; } return false;});
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159 state.langs.push(parsedLang);
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160 stream.next();
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161 transitState(state, ' ');
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162 return 'string-2';
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163 }
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164 if( ch == '^' ) {
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165 stream.next();
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166 transitState(state, '^');
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167 var parsedType = '';
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168 stream.eatWhile(function(c) { if( c != '>' ) { parsedType += c; return true; } return false;} );
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169 state.types.push(parsedType);
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170 stream.next();
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171 transitState(state, '>');
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172 return 'variable';
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173 }
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174 if( ch == ' ' ) {
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175 transitState(state, ch);
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176 }
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177 if( ch == '.' ) {
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178 transitState(state, ch);
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179 }
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180 }
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181 };
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182 });
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183
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184 // define the registered Media Type for n-triples:
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185 // https://www.w3.org/TR/n-triples/#n-triples-mediatype
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186 CodeMirror.defineMIME("application/n-triples", "ntriples");
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187
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188 // N-Quads is based on the N-Triples format (so same highlighting works)
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189 // https://www.w3.org/TR/n-quads/
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190 CodeMirror.defineMIME("application/n-quads", "ntriples");
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191
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192 // previously used, though technically incorrect media type for n-triples
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193 CodeMirror.defineMIME("text/n-triples", "ntriples");
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194
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195 });
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