summaryrefslogtreecommitdiff
path: root/codemirror_ui/lib/CodeMirror-2.3/lib/util/javascript-hint.js
diff options
context:
space:
mode:
Diffstat (limited to 'codemirror_ui/lib/CodeMirror-2.3/lib/util/javascript-hint.js')
-rw-r--r--codemirror_ui/lib/CodeMirror-2.3/lib/util/javascript-hint.js134
1 files changed, 134 insertions, 0 deletions
diff --git a/codemirror_ui/lib/CodeMirror-2.3/lib/util/javascript-hint.js b/codemirror_ui/lib/CodeMirror-2.3/lib/util/javascript-hint.js
new file mode 100644
index 0000000..2117e5a
--- /dev/null
+++ b/codemirror_ui/lib/CodeMirror-2.3/lib/util/javascript-hint.js
@@ -0,0 +1,134 @@
+(function () {
+ function forEach(arr, f) {
+ for (var i = 0, e = arr.length; i < e; ++i) f(arr[i]);
+ }
+
+ function arrayContains(arr, item) {
+ if (!Array.prototype.indexOf) {
+ var i = arr.length;
+ while (i--) {
+ if (arr[i] === item) {
+ return true;
+ }
+ }
+ return false;
+ }
+ return arr.indexOf(item) != -1;
+ }
+
+ function scriptHint(editor, keywords, getToken) {
+ // Find the token at the cursor
+ var cur = editor.getCursor(), token = getToken(editor, cur), tprop = token;
+ // If it's not a 'word-style' token, ignore the token.
+ if (!/^[\w$_]*$/.test(token.string)) {
+ token = tprop = {start: cur.ch, end: cur.ch, string: "", state: token.state,
+ className: token.string == "." ? "property" : null};
+ }
+ // If it is a property, find out what it is a property of.
+ while (tprop.className == "property") {
+ tprop = getToken(editor, {line: cur.line, ch: tprop.start});
+ if (tprop.string != ".") return;
+ tprop = getToken(editor, {line: cur.line, ch: tprop.start});
+ if (tprop.string == ')') {
+ var level = 1;
+ do {
+ tprop = getToken(editor, {line: cur.line, ch: tprop.start});
+ switch (tprop.string) {
+ case ')': level++; break;
+ case '(': level--; break;
+ default: break;
+ }
+ } while (level > 0)
+ tprop = getToken(editor, {line: cur.line, ch: tprop.start});
+ if (tprop.className == 'variable')
+ tprop.className = 'function';
+ else return; // no clue
+ }
+ if (!context) var context = [];
+ context.push(tprop);
+ }
+ return {list: getCompletions(token, context, keywords),
+ from: {line: cur.line, ch: token.start},
+ to: {line: cur.line, ch: token.end}};
+ }
+
+ CodeMirror.javascriptHint = function(editor) {
+ return scriptHint(editor, javascriptKeywords,
+ function (e, cur) {return e.getTokenAt(cur);});
+ }
+
+ function getCoffeeScriptToken(editor, cur) {
+ // This getToken, it is for coffeescript, imitates the behavior of
+ // getTokenAt method in javascript.js, that is, returning "property"
+ // type and treat "." as indepenent token.
+ var token = editor.getTokenAt(cur);
+ if (cur.ch == token.start + 1 && token.string.charAt(0) == '.') {
+ token.end = token.start;
+ token.string = '.';
+ token.className = "property";
+ }
+ else if (/^\.[\w$_]*$/.test(token.string)) {
+ token.className = "property";
+ token.start++;
+ token.string = token.string.replace(/\./, '');
+ }
+ return token;
+ }
+
+ CodeMirror.coffeescriptHint = function(editor) {
+ return scriptHint(editor, coffeescriptKeywords, getCoffeeScriptToken);
+ }
+
+ var stringProps = ("charAt charCodeAt indexOf lastIndexOf substring substr slice trim trimLeft trimRight " +
+ "toUpperCase toLowerCase split concat match replace search").split(" ");
+ var arrayProps = ("length concat join splice push pop shift unshift slice reverse sort indexOf " +
+ "lastIndexOf every some filter forEach map reduce reduceRight ").split(" ");
+ var funcProps = "prototype apply call bind".split(" ");
+ var javascriptKeywords = ("break case catch continue debugger default delete do else false finally for function " +
+ "if in instanceof new null return switch throw true try typeof var void while with").split(" ");
+ var coffeescriptKeywords = ("and break catch class continue delete do else extends false finally for " +
+ "if in instanceof isnt new no not null of off on or return switch then throw true try typeof until void while with yes").split(" ");
+
+ function getCompletions(token, context, keywords) {
+ var found = [], start = token.string;
+ function maybeAdd(str) {
+ if (str.indexOf(start) == 0 && !arrayContains(found, str)) found.push(str);
+ }
+ function gatherCompletions(obj) {
+ if (typeof obj == "string") forEach(stringProps, maybeAdd);
+ else if (obj instanceof Array) forEach(arrayProps, maybeAdd);
+ else if (obj instanceof Function) forEach(funcProps, maybeAdd);
+ for (var name in obj) maybeAdd(name);
+ }
+
+ if (context) {
+ // If this is a property, see if it belongs to some object we can
+ // find in the current environment.
+ var obj = context.pop(), base;
+ if (obj.className == "variable")
+ base = window[obj.string];
+ else if (obj.className == "string")
+ base = "";
+ else if (obj.className == "atom")
+ base = 1;
+ else if (obj.className == "function") {
+ if (window.jQuery != null && (obj.string == '$' || obj.string == 'jQuery') &&
+ (typeof window.jQuery == 'function'))
+ base = window.jQuery();
+ else if (window._ != null && (obj.string == '_') && (typeof window._ == 'function'))
+ base = window._();
+ }
+ while (base != null && context.length)
+ base = base[context.pop().string];
+ if (base != null) gatherCompletions(base);
+ }
+ else {
+ // If not, just look in the window object and any local scope
+ // (reading into JS mode internals to get at the local variables)
+ for (var v = token.state.localVars; v; v = v.next) maybeAdd(v.name);
+ gatherCompletions(window);
+ forEach(keywords, maybeAdd);
+ }
+ return found;
+ }
+})();