S2OJ/web/js/codemirror/addon/hint/python-hint.js

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2016-07-18 16:39:37 +00:00
// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: http://codemirror.net/LICENSE
(function(mod) {
if (typeof exports == "object" && typeof module == "object") // CommonJS
mod(require("../../lib/codemirror"));
else if (typeof define == "function" && define.amd) // AMD
define(["../../lib/codemirror"], mod);
else // Plain browser env
mod(CodeMirror);
})(function(CodeMirror) {
"use strict";
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 == ":" ? "python-type" : null};
}
if (!context) var context = [];
context.push(tprop);
var completionList = getCompletions(token, context);
completionList = completionList.sort();
return {list: completionList,
from: CodeMirror.Pos(cur.line, token.start),
to: CodeMirror.Pos(cur.line, token.end)};
}
function pythonHint(editor) {
return scriptHint(editor, pythonKeywordsU, function (e, cur) {return e.getTokenAt(cur);});
}
CodeMirror.registerHelper("hint", "python", pythonHint);
var pythonKeywords = "and del from not while as elif global or with assert else if pass yield"
+ "break except import print class exec in raise continue finally is return def for lambda try";
var pythonKeywordsL = pythonKeywords.split(" ");
var pythonKeywordsU = pythonKeywords.toUpperCase().split(" ");
var pythonBuiltins = "abs divmod input open staticmethod all enumerate int ord str "
+ "any eval isinstance pow sum basestring execfile issubclass print super"
+ "bin file iter property tuple bool filter len range type"
+ "bytearray float list raw_input unichr callable format locals reduce unicode"
+ "chr frozenset long reload vars classmethod getattr map repr xrange"
+ "cmp globals max reversed zip compile hasattr memoryview round __import__"
+ "complex hash min set apply delattr help next setattr buffer"
+ "dict hex object slice coerce dir id oct sorted intern ";
var pythonBuiltinsL = pythonBuiltins.split(" ").join("() ").split(" ");
var pythonBuiltinsU = pythonBuiltins.toUpperCase().split(" ").join("() ").split(" ");
function getCompletions(token, context) {
var found = [], start = token.string;
function maybeAdd(str) {
if (str.lastIndexOf(start, 0) == 0 && !arrayContains(found, str)) found.push(str);
}
function gatherCompletions(_obj) {
forEach(pythonBuiltinsL, maybeAdd);
forEach(pythonBuiltinsU, maybeAdd);
forEach(pythonKeywordsL, maybeAdd);
forEach(pythonKeywordsU, maybeAdd);
}
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.type == "variable")
base = obj.string;
else if(obj.type == "variable-3")
base = ":" + obj.string;
while (base != null && context.length)
base = base[context.pop().string];
if (base != null) gatherCompletions(base);
}
return found;
}
});