231 lines
6.8 KiB
JavaScript
231 lines
6.8 KiB
JavaScript
|
'use strict';
|
||
|
|
||
|
exports.__esModule = true;
|
||
|
exports.default = tokenize;
|
||
|
var singleQuote = 39,
|
||
|
doubleQuote = 34,
|
||
|
backslash = 92,
|
||
|
slash = 47,
|
||
|
newline = 10,
|
||
|
space = 32,
|
||
|
feed = 12,
|
||
|
tab = 9,
|
||
|
cr = 13,
|
||
|
plus = 43,
|
||
|
gt = 62,
|
||
|
tilde = 126,
|
||
|
pipe = 124,
|
||
|
comma = 44,
|
||
|
openBracket = 40,
|
||
|
closeBracket = 41,
|
||
|
openSq = 91,
|
||
|
closeSq = 93,
|
||
|
semicolon = 59,
|
||
|
asterisk = 42,
|
||
|
colon = 58,
|
||
|
ampersand = 38,
|
||
|
at = 64,
|
||
|
atEnd = /[ \n\t\r\{\(\)'"\\;/]/g,
|
||
|
wordEnd = /[ \n\t\r\(\)\*:;@!&'"\+\|~>,\[\]\\]|\/(?=\*)/g;
|
||
|
|
||
|
function tokenize(input) {
|
||
|
var tokens = [];
|
||
|
var css = input.css.valueOf();
|
||
|
|
||
|
var code = void 0,
|
||
|
next = void 0,
|
||
|
quote = void 0,
|
||
|
lines = void 0,
|
||
|
last = void 0,
|
||
|
content = void 0,
|
||
|
escape = void 0,
|
||
|
nextLine = void 0,
|
||
|
nextOffset = void 0,
|
||
|
escaped = void 0,
|
||
|
escapePos = void 0;
|
||
|
|
||
|
var length = css.length;
|
||
|
var offset = -1;
|
||
|
var line = 1;
|
||
|
var pos = 0;
|
||
|
|
||
|
var unclosed = function unclosed(what, end) {
|
||
|
if (input.safe) {
|
||
|
css += end;
|
||
|
next = css.length - 1;
|
||
|
} else {
|
||
|
throw input.error('Unclosed ' + what, line, pos - offset, pos);
|
||
|
}
|
||
|
};
|
||
|
|
||
|
while (pos < length) {
|
||
|
code = css.charCodeAt(pos);
|
||
|
|
||
|
if (code === newline) {
|
||
|
offset = pos;
|
||
|
line += 1;
|
||
|
}
|
||
|
|
||
|
switch (code) {
|
||
|
case newline:
|
||
|
case space:
|
||
|
case tab:
|
||
|
case cr:
|
||
|
case feed:
|
||
|
next = pos;
|
||
|
do {
|
||
|
next += 1;
|
||
|
code = css.charCodeAt(next);
|
||
|
if (code === newline) {
|
||
|
offset = next;
|
||
|
line += 1;
|
||
|
}
|
||
|
} while (code === space || code === newline || code === tab || code === cr || code === feed);
|
||
|
|
||
|
tokens.push(['space', css.slice(pos, next), line, pos - offset, pos]);
|
||
|
pos = next - 1;
|
||
|
break;
|
||
|
|
||
|
case plus:
|
||
|
case gt:
|
||
|
case tilde:
|
||
|
case pipe:
|
||
|
next = pos;
|
||
|
do {
|
||
|
next += 1;
|
||
|
code = css.charCodeAt(next);
|
||
|
} while (code === plus || code === gt || code === tilde || code === pipe);
|
||
|
tokens.push(['combinator', css.slice(pos, next), line, pos - offset, pos]);
|
||
|
pos = next - 1;
|
||
|
break;
|
||
|
|
||
|
case asterisk:
|
||
|
tokens.push(['*', '*', line, pos - offset, pos]);
|
||
|
break;
|
||
|
|
||
|
case ampersand:
|
||
|
tokens.push(['&', '&', line, pos - offset, pos]);
|
||
|
break;
|
||
|
|
||
|
case comma:
|
||
|
tokens.push([',', ',', line, pos - offset, pos]);
|
||
|
break;
|
||
|
|
||
|
case openSq:
|
||
|
tokens.push(['[', '[', line, pos - offset, pos]);
|
||
|
break;
|
||
|
|
||
|
case closeSq:
|
||
|
tokens.push([']', ']', line, pos - offset, pos]);
|
||
|
break;
|
||
|
|
||
|
case colon:
|
||
|
tokens.push([':', ':', line, pos - offset, pos]);
|
||
|
break;
|
||
|
|
||
|
case semicolon:
|
||
|
tokens.push([';', ';', line, pos - offset, pos]);
|
||
|
break;
|
||
|
|
||
|
case openBracket:
|
||
|
tokens.push(['(', '(', line, pos - offset, pos]);
|
||
|
break;
|
||
|
|
||
|
case closeBracket:
|
||
|
tokens.push([')', ')', line, pos - offset, pos]);
|
||
|
break;
|
||
|
|
||
|
case singleQuote:
|
||
|
case doubleQuote:
|
||
|
quote = code === singleQuote ? "'" : '"';
|
||
|
next = pos;
|
||
|
do {
|
||
|
escaped = false;
|
||
|
next = css.indexOf(quote, next + 1);
|
||
|
if (next === -1) {
|
||
|
unclosed('quote', quote);
|
||
|
}
|
||
|
escapePos = next;
|
||
|
while (css.charCodeAt(escapePos - 1) === backslash) {
|
||
|
escapePos -= 1;
|
||
|
escaped = !escaped;
|
||
|
}
|
||
|
} while (escaped);
|
||
|
|
||
|
tokens.push(['string', css.slice(pos, next + 1), line, pos - offset, line, next - offset, pos]);
|
||
|
pos = next;
|
||
|
break;
|
||
|
|
||
|
case at:
|
||
|
atEnd.lastIndex = pos + 1;
|
||
|
atEnd.test(css);
|
||
|
if (atEnd.lastIndex === 0) {
|
||
|
next = css.length - 1;
|
||
|
} else {
|
||
|
next = atEnd.lastIndex - 2;
|
||
|
}
|
||
|
tokens.push(['at-word', css.slice(pos, next + 1), line, pos - offset, line, next - offset, pos]);
|
||
|
pos = next;
|
||
|
break;
|
||
|
|
||
|
case backslash:
|
||
|
next = pos;
|
||
|
escape = true;
|
||
|
while (css.charCodeAt(next + 1) === backslash) {
|
||
|
next += 1;
|
||
|
escape = !escape;
|
||
|
}
|
||
|
code = css.charCodeAt(next + 1);
|
||
|
if (escape && code !== slash && code !== space && code !== newline && code !== tab && code !== cr && code !== feed) {
|
||
|
next += 1;
|
||
|
}
|
||
|
tokens.push(['word', css.slice(pos, next + 1), line, pos - offset, line, next - offset, pos]);
|
||
|
pos = next;
|
||
|
break;
|
||
|
|
||
|
default:
|
||
|
if (code === slash && css.charCodeAt(pos + 1) === asterisk) {
|
||
|
next = css.indexOf('*/', pos + 2) + 1;
|
||
|
if (next === 0) {
|
||
|
unclosed('comment', '*/');
|
||
|
}
|
||
|
|
||
|
content = css.slice(pos, next + 1);
|
||
|
lines = content.split('\n');
|
||
|
last = lines.length - 1;
|
||
|
|
||
|
if (last > 0) {
|
||
|
nextLine = line + last;
|
||
|
nextOffset = next - lines[last].length;
|
||
|
} else {
|
||
|
nextLine = line;
|
||
|
nextOffset = offset;
|
||
|
}
|
||
|
|
||
|
tokens.push(['comment', content, line, pos - offset, nextLine, next - nextOffset, pos]);
|
||
|
|
||
|
offset = nextOffset;
|
||
|
line = nextLine;
|
||
|
pos = next;
|
||
|
} else {
|
||
|
wordEnd.lastIndex = pos + 1;
|
||
|
wordEnd.test(css);
|
||
|
if (wordEnd.lastIndex === 0) {
|
||
|
next = css.length - 1;
|
||
|
} else {
|
||
|
next = wordEnd.lastIndex - 2;
|
||
|
}
|
||
|
|
||
|
tokens.push(['word', css.slice(pos, next + 1), line, pos - offset, line, next - offset, pos]);
|
||
|
pos = next;
|
||
|
}
|
||
|
|
||
|
break;
|
||
|
}
|
||
|
|
||
|
pos++;
|
||
|
}
|
||
|
|
||
|
return tokens;
|
||
|
}
|
||
|
module.exports = exports['default'];
|