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Location: kallithea/rhodecode/public/js/mode/ntriples/ntriples.js

Bradley M. Kuhn
Complete copyright notices for web interface; change footer to link to them.

The original copyright notice found in the footer was not accurate as it
included only one of the many copyright holders in this project. This change
creates an "about" page, which currently contains just the copyright and
license information. It links to repository for additional potential copyright
holders not listed on the about page.

Unlisted contributors are mentioned in template comments.

Html links for Kallithea is fixed and we link to Conservancy.

Display of version information in the footer is improved.
/**********************************************************
* This script provides syntax highlighting support for
* the Ntriples format.
* Ntriples format specification:
*     http://www.w3.org/TR/rdf-testcases/#ntriples
***********************************************************/

/*
    The following expression defines the defined ASF grammar transitions.

    pre_subject ->
        {
        ( writing_subject_uri | writing_bnode_uri )
            -> pre_predicate
                -> writing_predicate_uri
                    -> pre_object
                        -> writing_object_uri | writing_object_bnode |
                          (
                            writing_object_literal
                                -> writing_literal_lang | writing_literal_type
                          )
                            -> post_object
                                -> BEGIN
         } otherwise {
             -> ERROR
         }
*/
CodeMirror.defineMode("ntriples", function() {

  var Location = {
    PRE_SUBJECT         : 0,
    WRITING_SUB_URI     : 1,
    WRITING_BNODE_URI   : 2,
    PRE_PRED            : 3,
    WRITING_PRED_URI    : 4,
    PRE_OBJ             : 5,
    WRITING_OBJ_URI     : 6,
    WRITING_OBJ_BNODE   : 7,
    WRITING_OBJ_LITERAL : 8,
    WRITING_LIT_LANG    : 9,
    WRITING_LIT_TYPE    : 10,
    POST_OBJ            : 11,
    ERROR               : 12
  };
  function transitState(currState, c) {
    var currLocation = currState.location;
    var ret;

    // Opening.
    if     (currLocation == Location.PRE_SUBJECT && c == '<') ret = Location.WRITING_SUB_URI;
    else if(currLocation == Location.PRE_SUBJECT && c == '_') ret = Location.WRITING_BNODE_URI;
    else if(currLocation == Location.PRE_PRED    && c == '<') ret = Location.WRITING_PRED_URI;
    else if(currLocation == Location.PRE_OBJ     && c == '<') ret = Location.WRITING_OBJ_URI;
    else if(currLocation == Location.PRE_OBJ     && c == '_') ret = Location.WRITING_OBJ_BNODE;
    else if(currLocation == Location.PRE_OBJ     && c == '"') ret = Location.WRITING_OBJ_LITERAL;

    // Closing.
    else if(currLocation == Location.WRITING_SUB_URI     && c == '>') ret = Location.PRE_PRED;
    else if(currLocation == Location.WRITING_BNODE_URI   && c == ' ') ret = Location.PRE_PRED;
    else if(currLocation == Location.WRITING_PRED_URI    && c == '>') ret = Location.PRE_OBJ;
    else if(currLocation == Location.WRITING_OBJ_URI     && c == '>') ret = Location.POST_OBJ;
    else if(currLocation == Location.WRITING_OBJ_BNODE   && c == ' ') ret = Location.POST_OBJ;
    else if(currLocation == Location.WRITING_OBJ_LITERAL && c == '"') ret = Location.POST_OBJ;
    else if(currLocation == Location.WRITING_LIT_LANG && c == ' ') ret = Location.POST_OBJ;
    else if(currLocation == Location.WRITING_LIT_TYPE && c == '>') ret = Location.POST_OBJ;

    // Closing typed and language literal.
    else if(currLocation == Location.WRITING_OBJ_LITERAL && c == '@') ret = Location.WRITING_LIT_LANG;
    else if(currLocation == Location.WRITING_OBJ_LITERAL && c == '^') ret = Location.WRITING_LIT_TYPE;

    // Spaces.
    else if( c == ' ' &&
             (
               currLocation == Location.PRE_SUBJECT ||
               currLocation == Location.PRE_PRED    ||
               currLocation == Location.PRE_OBJ     ||
               currLocation == Location.POST_OBJ
             )
           ) ret = currLocation;

    // Reset.
    else if(currLocation == Location.POST_OBJ && c == '.') ret = Location.PRE_SUBJECT;

    // Error
    else ret = Location.ERROR;

    currState.location=ret;
  }

  return {
    startState: function() {
       return {
           location : Location.PRE_SUBJECT,
           uris     : [],
           anchors  : [],
           bnodes   : [],
           langs    : [],
           types    : []
       };
    },
    token: function(stream, state) {
      var ch = stream.next();
      if(ch == '<') {
         transitState(state, ch);
         var parsedURI = '';
         stream.eatWhile( function(c) { if( c != '#' && c != '>' ) { parsedURI += c; return true; } return false;} );
         state.uris.push(parsedURI);
         if( stream.match('#', false) ) return 'variable';
         stream.next();
         transitState(state, '>');
         return 'variable';
      }
      if(ch == '#') {
        var parsedAnchor = '';
        stream.eatWhile(function(c) { if(c != '>' && c != ' ') { parsedAnchor+= c; return true; } return false;});
        state.anchors.push(parsedAnchor);
        return 'variable-2';
      }
      if(ch == '>') {
          transitState(state, '>');
          return 'variable';
      }
      if(ch == '_') {
          transitState(state, ch);
          var parsedBNode = '';
          stream.eatWhile(function(c) { if( c != ' ' ) { parsedBNode += c; return true; } return false;});
          state.bnodes.push(parsedBNode);
          stream.next();
          transitState(state, ' ');
          return 'builtin';
      }
      if(ch == '"') {
          transitState(state, ch);
          stream.eatWhile( function(c) { return c != '"'; } );
          stream.next();
          if( stream.peek() != '@' && stream.peek() != '^' ) {
              transitState(state, '"');
          }
          return 'string';
      }
      if( ch == '@' ) {
          transitState(state, '@');
          var parsedLang = '';
          stream.eatWhile(function(c) { if( c != ' ' ) { parsedLang += c; return true; } return false;});
          state.langs.push(parsedLang);
          stream.next();
          transitState(state, ' ');
          return 'string-2';
      }
      if( ch == '^' ) {
          stream.next();
          transitState(state, '^');
          var parsedType = '';
          stream.eatWhile(function(c) { if( c != '>' ) { parsedType += c; return true; } return false;} );
          state.types.push(parsedType);
          stream.next();
          transitState(state, '>');
          return 'variable';
      }
      if( ch == ' ' ) {
          transitState(state, ch);
      }
      if( ch == '.' ) {
          transitState(state, ch);
      }
    }
  };
});

CodeMirror.defineMIME("text/n-triples", "ntriples");