forked from plotly/plotly.js
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathcontainer_array_match.js
More file actions
56 lines (46 loc) · 1.77 KB
/
Copy pathcontainer_array_match.js
File metadata and controls
56 lines (46 loc) · 1.77 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
/**
* Copyright 2012-2018, Plotly, Inc.
* All rights reserved.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
'use strict';
var Registry = require('../registry');
/*
* containerArrayMatch: does this attribute string point into a
* layout container array?
*
* @param {String} astr: an attribute string, like *annotations[2].text*
*
* @returns {Object | false} Returns false if `astr` doesn't match a container
* array. If it does, returns:
* {array: {String}, index: {Number}, property: {String}}
* ie the attribute string for the array, the index within the array (or ''
* if the whole array) and the property within that (or '' if the whole array
* or the whole object)
*/
module.exports = function containerArrayMatch(astr) {
var rootContainers = Registry.layoutArrayContainers,
regexpContainers = Registry.layoutArrayRegexes,
rootPart = astr.split('[')[0],
arrayStr,
match;
// look for regexp matches first, because they may be nested inside root matches
// eg updatemenus[i].buttons is nested inside updatemenus
for(var i = 0; i < regexpContainers.length; i++) {
match = astr.match(regexpContainers[i]);
if(match && match.index === 0) {
arrayStr = match[0];
break;
}
}
// now look for root matches
if(!arrayStr) arrayStr = rootContainers[rootContainers.indexOf(rootPart)];
if(!arrayStr) return false;
var tail = astr.substr(arrayStr.length);
if(!tail) return {array: arrayStr, index: '', property: ''};
match = tail.match(/^\[(0|[1-9][0-9]*)\](\.(.+))?$/);
if(!match) return false;
return {array: arrayStr, index: Number(match[1]), property: match[3] || ''};
};