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(function() {
var Pos = CodeMirror.Pos;
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, options) {
// Find the token at the cursor
var cur = editor.getCursor(),
token = getToken(editor, cur),
tprop = token;
token.state = CodeMirror.innerMode(editor.getMode(), token.state)
.state;
// 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,
type: token.string == "." ? "property" : null
};
}
// If it is a property, find out what it is a property of.
while (tprop.type == "property") {
tprop = getToken(editor, Pos(cur.line, tprop.start));
if (tprop.string != ".") return;
tprop = getToken(editor, Pos(cur.line, tprop.start));
if (tprop.string == ')') {
var level = 1;
do {
tprop = getToken(editor, Pos(cur.line, tprop.start));
switch (tprop.string) {
case ')':
level++;
break;
case '(':
level--;
break;
default:
break;
}
} while (level > 0);
tprop = getToken(editor, Pos(cur.line, tprop.start));
if (tprop.type.indexOf("variable") === 0) tprop.type = "function";
else return; // no clue
}
if (!context) var context = [];
context.push(tprop);
}
return {
list: getCompletions(token, context, keywords, options),
from: Pos(cur.line, token.start),
to: Pos(cur.line, token.end)
};
}
function columnsHint(editor, options) {
return scriptHint(editor, [], /* javascriptKeywords */
function(e, cur) {
return e.getTokenAt(cur);
},
options);
};
CodeMirror.registerHelper("hint", "custom-list", columnsHint);
function getCompletions(token, context, keywords, options) {
var found = [],
start = token.string;
function maybeAdd(str) {
if (str.indexOf(start) == 0 && start != str && !arrayContains(found, str)) found.push(str);
}
function gatherCompletions(obj) {
for (var name in obj) {
maybeAdd(obj[name]);
}
}
gatherCompletions(options.list);
forEach(keywords, maybeAdd);
return found;
}
})();