lepu-test-platform-web/node_modules/postcss-selector-parser/dist/tokenize.js

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'];