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Code Issues 8 Pull Requests 3 Actions Packages Projects Releases Wiki Activity

Remove dependency on underscore

Browse Source 
Summary:
Remove all uses of underscore. For the things we actually need, make a
"util" file and put them in there.

Test Plan:
Make sure the test still succeed, and that the main page still
works.

Reviewers: alpert

Reviewed By: alpert

Differential Revision: http://phabricator.khanacademy.org/D3043
This commit is contained in:
Emily Eisenberg 2013-07-13 20:42:19 -07:00
parent 0da85483c4
commit a831e94a51
4 changed files with 18 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
Parser.js
View File

@ -1,4 +1,5 @@
var Lexer = require("./Lexer");
var utils = require("./utils");
// Main Parser class
function Parser() {
@ -164,10 +165,6 @@ Parser.prototype.parseGroup = function(pos) {
}
};
// Tests whether an element is in a list
function contains(list, elem) {
return list.indexOf(elem) !== -1;
}
// A list of 1-argument color functions
var colorFuncs = [
@ -211,7 +208,7 @@ for (var type in copyFuncs) {
Parser.prototype.parseNucleus = function(pos) {
var nucleus = this.lexer.lex(pos);
if (contains(colorFuncs, nucleus.type)) {
if (utils.contains(colorFuncs, nucleus.type)) {
// If this is a color function, parse its argument and return
var group = this.parseGroup(nucleus.position);
if (group) {

13
katex.js
View File

@ -1,11 +1,16 @@
var parseTree = require("./parseTree");
var utils = require("./utils");
var buildExpression = function(expression) {
return _.map(expression, function(ex, i) {
var groups = [];
for (var i = 0; i < expression.length; i++) {
var group = expression[i];
var prev = i > 0 ? expression[i-1] : null;
return buildGroup(ex, prev);
});
groups.push(buildGroup(group, prev));
};
return groups;
};
var makeSpan = function(className, children) {
@ -28,7 +33,7 @@ var buildGroup = function(group, prev) {
return makeSpan("mord", [textit(group.value)]);
} else if (group.type === "bin") {
var className = "mbin";
if (prev == null || _.contains(["bin", "open", "rel"], prev.type)) {
if (prev == null || utils.contains(["bin", "open", "rel"], prev.type)) {
group.type = "ord";
className = "mord";
}

1
static/index.html
View File

@ -2,7 +2,6 @@
<html>
<head>
<title>KaTeX Test</title>
<script src="//cdnjs.cloudflare.com/ajax/libs/underscore.js/1.4.4/underscore-min.js" type="text/javascript"></script>
<script src="katex.js" type="text/javascript"></script>
<script src="main.js" type="text/javascript"></script>
<link href="katex.css" rel="stylesheet" type="text/css">

7
utils.js Normal file
View File

@ -0,0 +1,7 @@
function contains(list, elem) {
return list.indexOf(elem) !== -1;
}
module.exports = {
contains: contains
}