1// CodeMirror, copyright (c) by Marijn Haverbeke and others
  2// Distributed under an MIT license: https://codemirror.net/LICENSE
  3
  4(function(mod) {
  5  if (typeof exports == "object" && typeof module == "object") // CommonJS
  6    mod(require("../../lib/codemirror"));
  7  else if (typeof define == "function" && define.amd) // AMD
  8    define(["../../lib/codemirror"], mod);
  9  else // Plain browser env
 10    mod(CodeMirror);
 11})(function(CodeMirror) {
 12"use strict";
 13
 14CodeMirror.defineMode("sparql", function(config) {
 15  var indentUnit = config.indentUnit;
 16  var curPunc;
 17
 18  function wordRegexp(words) {
 19    return new RegExp("^(?:" + words.join("|") + ")$", "i");
 20  }
 21  var ops = wordRegexp(["str", "lang", "langmatches", "datatype", "bound", "sameterm", "isiri", "isuri",
 22                        "iri", "uri", "bnode", "count", "sum", "min", "max", "avg", "sample",
 23                        "group_concat", "rand", "abs", "ceil", "floor", "round", "concat", "substr", "strlen",
 24                        "replace", "ucase", "lcase", "encode_for_uri", "contains", "strstarts", "strends",
 25                        "strbefore", "strafter", "year", "month", "day", "hours", "minutes", "seconds",
 26                        "timezone", "tz", "now", "uuid", "struuid", "md5", "sha1", "sha256", "sha384",
 27                        "sha512", "coalesce", "if", "strlang", "strdt", "isnumeric", "regex", "exists",
 28                        "isblank", "isliteral", "a", "bind"]);
 29  var keywords = wordRegexp(["base", "prefix", "select", "distinct", "reduced", "construct", "describe",
 30                             "ask", "from", "named", "where", "order", "limit", "offset", "filter", "optional",
 31                             "graph", "by", "asc", "desc", "as", "having", "undef", "values", "group",
 32                             "minus", "in", "not", "service", "silent", "using", "insert", "delete", "union",
 33                             "true", "false", "with",
 34                             "data", "copy", "to", "move", "add", "create", "drop", "clear", "load"]);
 35  var operatorChars = /[*+\-<>=&|\^\/!\?]/;
 36
 37  function tokenBase(stream, state) {
 38    var ch = stream.next();
 39    curPunc = null;
 40    if (ch == "$" || ch == "?") {
 41      if(ch == "?" && stream.match(/\s/, false)){
 42        return "operator";
 43      }
 44      stream.match(/^[A-Za-z0-9_\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u02FF\u0370-\u037D\u037F-\u1FFF\u200C-\u200D\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD][A-Za-z0-9_\u00B7\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u037D\u037F-\u1FFF\u200C-\u200D\u203F-\u2040\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD]*/);
 45      return "variable-2";
 46    }
 47    else if (ch == "<" && !stream.match(/^[\s\u00a0=]/, false)) {
 48      stream.match(/^[^\s\u00a0>]*>?/);
 49      return "atom";
 50    }
 51    else if (ch == "\"" || ch == "'") {
 52      state.tokenize = tokenLiteral(ch);
 53      return state.tokenize(stream, state);
 54    }
 55    else if (/[{}\(\),\.;\[\]]/.test(ch)) {
 56      curPunc = ch;
 57      return "bracket";
 58    }
 59    else if (ch == "#") {
 60      stream.skipToEnd();
 61      return "comment";
 62    }
 63    else if (operatorChars.test(ch)) {
 64      stream.eatWhile(operatorChars);
 65      return "operator";
 66    }
 67    else if (ch == ":") {
 68      stream.eatWhile(/[\w\d\._\-]/);
 69      return "atom";
 70    }
 71    else if (ch == "@") {
 72      stream.eatWhile(/[a-z\d\-]/i);
 73      return "meta";
 74    }
 75    else {
 76      stream.eatWhile(/[_\w\d]/);
 77      if (stream.eat(":")) {
 78        stream.eatWhile(/[\w\d_\-]/);
 79        return "atom";
 80      }
 81      var word = stream.current();
 82      if (ops.test(word))
 83        return "builtin";
 84      else if (keywords.test(word))
 85        return "keyword";
 86      else
 87        return "variable";
 88    }
 89  }
 90
 91  function tokenLiteral(quote) {
 92    return function(stream, state) {
 93      var escaped = false, ch;
 94      while ((ch = stream.next()) != null) {
 95        if (ch == quote && !escaped) {
 96          state.tokenize = tokenBase;
 97          break;
 98        }
 99        escaped = !escaped && ch == "\\";
100      }
101      return "string";
102    };
103  }
104
105  function pushContext(state, type, col) {
106    state.context = {prev: state.context, indent: state.indent, col: col, type: type};
107  }
108  function popContext(state) {
109    state.indent = state.context.indent;
110    state.context = state.context.prev;
111  }
112
113  return {
114    startState: function() {
115      return {tokenize: tokenBase,
116              context: null,
117              indent: 0,
118              col: 0};
119    },
120
121    token: function(stream, state) {
122      if (stream.sol()) {
123        if (state.context && state.context.align == null) state.context.align = false;
124        state.indent = stream.indentation();
125      }
126      if (stream.eatSpace()) return null;
127      var style = state.tokenize(stream, state);
128
129      if (style != "comment" && state.context && state.context.align == null && state.context.type != "pattern") {
130        state.context.align = true;
131      }
132
133      if (curPunc == "(") pushContext(state, ")", stream.column());
134      else if (curPunc == "[") pushContext(state, "]", stream.column());
135      else if (curPunc == "{") pushContext(state, "}", stream.column());
136      else if (/[\]\}\)]/.test(curPunc)) {
137        while (state.context && state.context.type == "pattern") popContext(state);
138        if (state.context && curPunc == state.context.type) {
139          popContext(state);
140          if (curPunc == "}" && state.context && state.context.type == "pattern")
141            popContext(state);
142        }
143      }
144      else if (curPunc == "." && state.context && state.context.type == "pattern") popContext(state);
145      else if (/atom|string|variable/.test(style) && state.context) {
146        if (/[\}\]]/.test(state.context.type))
147          pushContext(state, "pattern", stream.column());
148        else if (state.context.type == "pattern" && !state.context.align) {
149          state.context.align = true;
150          state.context.col = stream.column();
151        }
152      }
153
154      return style;
155    },
156
157    indent: function(state, textAfter) {
158      var firstChar = textAfter && textAfter.charAt(0);
159      var context = state.context;
160      if (/[\]\}]/.test(firstChar))
161        while (context && context.type == "pattern") context = context.prev;
162
163      var closing = context && firstChar == context.type;
164      if (!context)
165        return 0;
166      else if (context.type == "pattern")
167        return context.col;
168      else if (context.align)
169        return context.col + (closing ? 0 : 1);
170      else
171        return context.indent + (closing ? 0 : indentUnit);
172    },
173
174    lineComment: "#"
175  };
176});
177
178CodeMirror.defineMIME("application/sparql-query", "sparql");
179
180});