1 files changed, 95 insertions, 0 deletions

diff --git a/js/codemirror/mode/yaml/yaml.js b/js/codemirror/mode/yaml/yaml.js
new file mode 100644
index 00000000..59e2641a
--- /dev/null
+++ b/js/codemirror/mode/yaml/yaml.js
@@ -0,0 +1,95 @@
+CodeMirror.defineMode("yaml", function() {
+        
+        var cons = ['true', 'false', 'on', 'off', 'yes', 'no'];
+        var keywordRegex = new RegExp("\\b(("+cons.join(")|(")+"))$", 'i');
+        
+        return {
+                token: function(stream, state) {
+                        var ch = stream.peek();
+                        var esc = state.escaped;
+                        state.escaped = false;
+                        /* comments */
+                        if (ch == "#") { stream.skipToEnd(); return "comment"; }
+                        if (state.literal && stream.indentation() > state.keyCol) {
+                                stream.skipToEnd(); return "string";
+                        } else if (state.literal) { state.literal = false; }
+                        if (stream.sol()) {
+                                state.keyCol = 0;
+                                state.pair = false;
+                                state.pairStart = false;
+                                /* document start */
+                                if(stream.match(/---/)) { return "def"; }
+                                /* document end */
+                                if (stream.match(/\.\.\./)) { return "def"; }
+                                /* array list item */
+                                if (stream.match(/\s*-\s+/)) { return 'meta'; }
+                        }
+                        /* pairs (associative arrays) -> key */
+                        if (!state.pair && stream.match(/^\s*([a-z0-9\._-])+(?=\s*:)/i)) {
+                                state.pair = true;
+                                state.keyCol = stream.indentation();
+                                return "atom";
+                        }
+                        if (state.pair && stream.match(/^:\s*/)) { state.pairStart = true; return 'meta'; }
+                        
+                        /* inline pairs/lists */
+                        if (stream.match(/^(\{|\}|\[|\])/)) {
+                                if (ch == '{')
+                                        state.inlinePairs++;
+                                else if (ch == '}')
+                                        state.inlinePairs--;
+                                else if (ch == '[')
+                                        state.inlineList++;
+                                else
+                                        state.inlineList--;
+                                return 'meta';
+                        }
+                        
+                        /* list seperator */
+                        if (state.inlineList > 0 && !esc && ch == ',') {
+                                stream.next();
+                                return 'meta';
+                        }
+                        /* pairs seperator */
+                        if (state.inlinePairs > 0 && !esc && ch == ',') {
+                                state.keyCol = 0;
+                                state.pair = false;
+                                state.pairStart = false;
+                                stream.next();
+                                return 'meta';
+                        }
+                        
+                        /* start of value of a pair */
+                        if (state.pairStart) {
+                                /* block literals */
+                                if (stream.match(/^\s*(\||\>)\s*/)) { state.literal = true; return 'meta'; };
+                                /* references */
+                                if (stream.match(/^\s*(\&|\*)[a-z0-9\._-]+\b/i)) { return 'variable-2'; }
+                                /* numbers */
+                                if (state.inlinePairs == 0 && stream.match(/^\s*-?[0-9\.\,]+\s?$/)) { return 'number'; }
+                                if (state.inlinePairs > 0 && stream.match(/^\s*-?[0-9\.\,]+\s?(?=(,|}))/)) { return 'number'; }
+                                /* keywords */
+                                if (stream.match(keywordRegex)) { return 'keyword'; }
+                        }
+
+                        /* nothing found, continue */
+                        state.pairStart = false;
+                        state.escaped = (ch == '\\');
+                        stream.next();
+                        return null;
+                },
+                startState: function() {
+                        return {
+                                pair: false,
+                                pairStart: false,
+                                keyCol: 0,
+                                inlinePairs: 0,
+                                inlineList: 0,
+                                literal: false,
+                                escaped: false
+                        };
+                }
+        };
+});
+
+CodeMirror.defineMIME("text/x-yaml", "yaml");