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Fixes for IE7 compatibility

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This commit is contained in:
James Foster
2010-05-19 08:28:24 +08:00
committed by Alexis Sellier
parent 61c2b5877a
commit e501f2e47c
3 changed files with 29 additions and 23 deletions
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2
README.md
View File

@@ -28,7 +28,7 @@ synopsis
First, run `make less` in the command line. It will the build the *less.js* file in *dist/*.
Then, you can use it as such:
<script src="less.js"></script>
<link rel="stylesheet/less" href="main.less" type="text/css">
<script src="less.js"></script>
To build a minified version, run `make min`

18
lib/less/browser.js
View File

@@ -1,8 +1,11 @@
//
// Select all links with the 'rel' attribute set to "less"
//
var sheets = (document.querySelectorAll ? document.querySelectorAll
: jQuery).call(document, 'link[rel="stylesheet/less"]');
var sheets = [];
if(!document.querySelectorAll && typeof(jQuery) === "undefined")
log("No selector method found");
else
sheets = (document.querySelectorAll || jQuery).call(document, 'link[rel="stylesheet/less"]');
less.env = location.hostname == '127.0.0.1' ||
location.hostname == '0.0.0.0' ||
@@ -12,7 +15,7 @@ less.env = location.hostname == '127.0.0.1' ||
for (var i = 0; i < sheets.length; i++) {
(function (sheet) { // Because the functions here are async, we need to create a closure
var css = localStorage && localStorage.getItem(sheet.href);
var css = typeof(localStorage) !== "undefined" && localStorage.getItem(sheet.href);
var styles = css && JSON.parse(css);
xhr(sheet.href, function (data, lastModified) {
@@ -37,13 +40,13 @@ function createCSS(styles, sheet, lastModified) {
var css = document.createElement('style');
css.type = 'text/css';
css.media = 'screen';
css.title = 'lessheet';
css.title = 'less-sheet';
if (sheet) {
css.title = sheet.title || sheet.href.match(/\/([-\w]+)\.[a-z]+$/i)[1];
css.title = sheet.title || sheet.href.match(/(^|\/)([-\w]+)\.[a-z]+$/i)[1];
// Don't update the local store if the file wasn't modified
if (lastModified && localStorage) {
if (lastModified && typeof(localStorage) !== "undefined") {
localStorage.setItem(sheet.href, JSON.stringify({ timestamp: lastModified, css: styles }));
}
}
@@ -84,7 +87,7 @@ function xhr(url, callback, errback) {
}
function log(str) {
if (less.env == 'development') { console.log(str) }
if (less.env == 'development' && typeof(console) !== "undefined") { console.log(str) }
}
function error(e, href) {
@@ -100,7 +103,6 @@ function error(e, href) {
'<p><a href="' + href + '">' + href + "</a> " +
'on line ' + e.line + ', column ' + e.column + ':</p>' +
template.replace(/\[(-?\d)\]/g, function (_, i) {
console.log(i)
return e.line + parseInt(i);
}).replace(/\{(\d)\}/g, function (_, i) {
return e.extract[parseInt(i)];

32
lib/less/parser.js
View File

@@ -99,7 +99,7 @@ less.Parser = function Parser(env) {
// or match a regexp in the current chunk (chunk[j]).
//
} else if (typeof(tok) === 'string') {
match = input[i] === tok ? tok : null;
match = input.charAt(i) === tok ? tok : null;
length = 1;
// 1. We move to the next chunk, if necessary.
@@ -138,6 +138,10 @@ less.Parser = function Parser(env) {
if (! (c === 32 || c === 10 || c === 9)) { break }
i++;
}
if(typeof(match) === 'string')
return match;
return match.length === 1 ? match[0] : match;
}
}
@@ -148,7 +152,7 @@ less.Parser = function Parser(env) {
var match;
if (typeof(tok) === 'string') {
return input[i] === tok;
return input.charAt(i) === tok;
} else {
tok.lastIndex = i;
@@ -230,7 +234,7 @@ less.Parser = function Parser(env) {
lines = input.split('\n');
line = (input.slice(0, i).match(/\n/g) || "").length + 1;
for (var n = i, column = -1; input[n] !== '\n'; n--) { column++ }
for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ }
error = {
name: "ParseError",
@@ -314,7 +318,7 @@ less.Parser = function Parser(env) {
comment: function () {
var comment;
if (input[i] !== '/') return;
if (input.charAt(i) !== '/') return;
if (comment = $(/\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/g)) {
return new(tree.Comment)(comment);
@@ -334,7 +338,7 @@ less.Parser = function Parser(env) {
//
quoted: function () {
var str;
if (input[i] !== '"' && input[i] !== "'") return;
if (input.charAt(i) !== '"' && input.charAt(i) !== "'") return;
if (str = $(/"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/g)) {
return new(tree.Quoted)(str[0], str[1] || str[2]);
@@ -399,7 +403,7 @@ less.Parser = function Parser(env) {
url: function () {
var value;
if (input[i] !== 'u' || !$(/url\(/g)) return;
if (input.charAt(i) !== 'u' || !$(/url\(/g)) return;
value = $(this.entities.quoted) || $(/[-a-zA-Z0-9_%@$\/.&=:;#+?]+/g);
if (! $(')')) throw new(Error)("missing closing ) for url()");
@@ -417,7 +421,7 @@ less.Parser = function Parser(env) {
variable: function () {
var name;
if (input[i] === '@' && (name = $(/@[a-zA-Z0-9_-]+/g))) {
if (input.charAt(i) === '@' && (name = $(/@[a-zA-Z0-9_-]+/g))) {
return new(tree.Variable)(name);
}
},
@@ -432,7 +436,7 @@ less.Parser = function Parser(env) {
color: function () {
var rgb;
if (input[i] === '#' && (rgb = $(/#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})/g))) {
if (input.charAt(i) === '#' && (rgb = $(/#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})/g))) {
return new(tree.Color)(rgb[1]);
}
},
@@ -460,7 +464,7 @@ less.Parser = function Parser(env) {
variable: function () {
var name;
if (input[i] === '@' && (name = $(/(@[a-zA-Z0-9_-]+)\s*:/g))) { return name[1] }
if (input.charAt(i) === '@' && (name = $(/(@[a-zA-Z0-9_-]+)\s*:/g))) { return name[1] }
},
//
@@ -531,7 +535,7 @@ less.Parser = function Parser(env) {
definition: function () {
var name, params = [], match, ruleset, param, value;
if (input[i] !== '.' || peek(/[^{]*(;|})/g)) return;
if (input.charAt(i) !== '.' || peek(/[^{]*(;|})/g)) return;
if (match = $(/([#.][a-zA-Z0-9_-]+)\s*\(/g)) {
name = match[1];
@@ -633,7 +637,7 @@ less.Parser = function Parser(env) {
if (match = $(/[+>~]/g) || $('&') || $(/::/g)) {
return new(tree.Combinator)(match);
} else {
return new(tree.Combinator)(input[i - 1] === " " ? " " : null);
return new(tree.Combinator)(input.charAt(i - 1) === " " ? " " : null);
}
},
@@ -714,7 +718,7 @@ less.Parser = function Parser(env) {
var memo = i;
if (name = $(this.property) || $(this.variable)) {
if ((name[0] != '@') && (match = peek(/([^@+\/*(;{}-]*);/g))) {
if ((name.charAt(0) != '@') && (match = peek(/([^@+\/*(;{}-]*);/g))) {
i += match[0].length - 1;
value = new(tree.Anonymous)(match[1]);
} else if (name === "font") {
@@ -759,7 +763,7 @@ less.Parser = function Parser(env) {
directive: function () {
var name, value, rules, types;
if (input[i] !== '@') return;
if (input.charAt(i) !== '@') return;
if (value = $(this['import'])) {
return value;
@@ -838,7 +842,7 @@ less.Parser = function Parser(env) {
addition: function () {
var m, a, op, operation;
if (m = $(this.multiplication)) {
while ((op = $(/[-+]\s+/g) || (input[i - 1] != ' ' && $(/[-+]/g))) &&
while ((op = $(/[-+]\s+/g) || (input.charAt(i - 1) != ' ' && $(/[-+]/g))) &&
(a = $(this.multiplication))) {
operation = new(tree.Operation)(op, [operation || m, a]);
}