106 lines
2.7 KiB
JavaScript
106 lines
2.7 KiB
JavaScript
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(function() {
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var Pos = CodeMirror.Pos;
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function forEach(arr, f) {
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for (var i = 0, e = arr.length; i < e; ++i) f(arr[i]);
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}
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function arrayContains(arr, item) {
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if (!Array.prototype.indexOf) {
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var i = arr.length;
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while (i--) {
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if (arr[i] === item) {
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return true;
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}
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}
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return false;
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}
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return arr.indexOf(item) != -1;
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}
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function scriptHint(editor, keywords, getToken, options) {
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// Find the token at the cursor
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var cur = editor.getCursor(),
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token = getToken(editor, cur),
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tprop = token;
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token.state = CodeMirror.innerMode(editor.getMode(), token.state)
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.state;
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// If it's not a 'word-style' token, ignore the token.
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if (!/^[\w$_]*$/.test(token.string)) {
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token = tprop = {
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start: cur.ch,
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end: cur.ch,
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string: "",
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state: token.state,
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type: token.string == "." ? "property" : null
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};
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}
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// If it is a property, find out what it is a property of.
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while (tprop.type == "property") {
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tprop = getToken(editor, Pos(cur.line, tprop.start));
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if (tprop.string != ".") return;
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tprop = getToken(editor, Pos(cur.line, tprop.start));
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if (tprop.string == ')') {
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var level = 1;
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do {
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tprop = getToken(editor, Pos(cur.line, tprop.start));
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switch (tprop.string) {
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case ')':
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level++;
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break;
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case '(':
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level--;
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break;
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default:
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break;
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}
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} while (level > 0);
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tprop = getToken(editor, Pos(cur.line, tprop.start));
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if (tprop.type.indexOf("variable") === 0) tprop.type = "function";
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else return; // no clue
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}
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if (!context) var context = [];
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context.push(tprop);
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}
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return {
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list: getCompletions(token, context, keywords, options),
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from: Pos(cur.line, token.start),
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to: Pos(cur.line, token.end)
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};
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}
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function columnsHint(editor, options) {
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return scriptHint(editor, [], /* javascriptKeywords */
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function(e, cur) {
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return e.getTokenAt(cur);
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},
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options);
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};
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CodeMirror.registerHelper("hint", "custom-list", columnsHint);
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function getCompletions(token, context, keywords, options) {
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var found = [],
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start = token.string;
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function maybeAdd(str) {
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if (str.indexOf(start) == 0 && start != str && !arrayContains(found, str)) found.push(str);
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}
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function gatherCompletions(obj) {
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for (var name in obj) {
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maybeAdd(obj[name]);
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}
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}
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gatherCompletions(options.list);
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forEach(keywords, maybeAdd);
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return found;
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}
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})();
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