1 files changed, 143 insertions, 0 deletions

diff --git a/imports/codemirror/mode/sparql/sparql.js b/imports/codemirror/mode/sparql/sparql.js
new file mode 100755
index 00000000..ceb52942
--- /dev/null
+++ b/imports/codemirror/mode/sparql/sparql.js
@@ -0,0 +1,143 @@
+CodeMirror.defineMode("sparql", function(config) {
+  var indentUnit = config.indentUnit;
+  var curPunc;
+
+  function wordRegexp(words) {
+    return new RegExp("^(?:" + words.join("|") + ")$", "i");
+  }
+  var ops = wordRegexp(["str", "lang", "langmatches", "datatype", "bound", "sameterm", "isiri", "isuri",
+                        "isblank", "isliteral", "union", "a"]);
+  var keywords = wordRegexp(["base", "prefix", "select", "distinct", "reduced", "construct", "describe",
+                             "ask", "from", "named", "where", "order", "limit", "offset", "filter", "optional",
+                             "graph", "by", "asc", "desc"]);
+  var operatorChars = /[*+\-<>=&|]/;
+
+  function tokenBase(stream, state) {
+    var ch = stream.next();
+    curPunc = null;
+    if (ch == "$" || ch == "?") {
+      stream.match(/^[\w\d]*/);
+      return "variable-2";
+    }
+    else if (ch == "<" && !stream.match(/^[\s\u00a0=]/, false)) {
+      stream.match(/^[^\s\u00a0>]*>?/);
+      return "atom";
+    }
+    else if (ch == "\"" || ch == "'") {
+      state.tokenize = tokenLiteral(ch);
+      return state.tokenize(stream, state);
+    }
+    else if (/[{}\(\),\.;\[\]]/.test(ch)) {
+      curPunc = ch;
+      return null;
+    }
+    else if (ch == "#") {
+      stream.skipToEnd();
+      return "comment";
+    }
+    else if (operatorChars.test(ch)) {
+      stream.eatWhile(operatorChars);
+      return null;
+    }
+    else if (ch == ":") {
+      stream.eatWhile(/[\w\d\._\-]/);
+      return "atom";
+    }
+    else {
+      stream.eatWhile(/[_\w\d]/);
+      if (stream.eat(":")) {
+        stream.eatWhile(/[\w\d_\-]/);
+        return "atom";
+      }
+      var word = stream.current(), type;
+      if (ops.test(word))
+        return null;
+      else if (keywords.test(word))
+        return "keyword";
+      else
+        return "variable";
+    }
+  }
+
+  function tokenLiteral(quote) {
+    return function(stream, state) {
+      var escaped = false, ch;
+      while ((ch = stream.next()) != null) {
+        if (ch == quote && !escaped) {
+          state.tokenize = tokenBase;
+          break;
+        }
+        escaped = !escaped && ch == "\\";
+      }
+      return "string";
+    };
+  }
+
+  function pushContext(state, type, col) {
+    state.context = {prev: state.context, indent: state.indent, col: col, type: type};
+  }
+  function popContext(state) {
+    state.indent = state.context.indent;
+    state.context = state.context.prev;
+  }
+
+  return {
+    startState: function(base) {
+      return {tokenize: tokenBase,
+              context: null,
+              indent: 0,
+              col: 0};
+    },
+
+    token: function(stream, state) {
+      if (stream.sol()) {
+        if (state.context && state.context.align == null) state.context.align = false;
+        state.indent = stream.indentation();
+      }
+      if (stream.eatSpace()) return null;
+      var style = state.tokenize(stream, state);
+
+      if (style != "comment" && state.context && state.context.align == null && state.context.type != "pattern") {
+        state.context.align = true;
+      }
+
+      if (curPunc == "(") pushContext(state, ")", stream.column());
+      else if (curPunc == "[") pushContext(state, "]", stream.column());
+      else if (curPunc == "{") pushContext(state, "}", stream.column());
+      else if (/[\]\}\)]/.test(curPunc)) {
+        while (state.context && state.context.type == "pattern") popContext(state);
+        if (state.context && curPunc == state.context.type) popContext(state);
+      }
+      else if (curPunc == "." && state.context && state.context.type == "pattern") popContext(state);
+      else if (/atom|string|variable/.test(style) && state.context) {
+        if (/[\}\]]/.test(state.context.type))
+          pushContext(state, "pattern", stream.column());
+        else if (state.context.type == "pattern" && !state.context.align) {
+          state.context.align = true;
+          state.context.col = stream.column();
+        }
+      }
+      
+      return style;
+    },
+
+    indent: function(state, textAfter) {
+      var firstChar = textAfter && textAfter.charAt(0);
+      var context = state.context;
+      if (/[\]\}]/.test(firstChar))
+        while (context && context.type == "pattern") context = context.prev;
+
+      var closing = context && firstChar == context.type;
+      if (!context)
+        return 0;
+      else if (context.type == "pattern")
+        return context.col;
+      else if (context.align)
+        return context.col + (closing ? 0 : 1);
+      else
+        return context.indent + (closing ? 0 : indentUnit);
+    }
+  };
+});
+
+CodeMirror.defineMIME("application/x-sparql-query", "sparql");