diff options
Diffstat (limited to 'vanilla/node_modules/css-tree/lib/definition-syntax/scanner.js')
| -rw-r--r-- | vanilla/node_modules/css-tree/lib/definition-syntax/scanner.js | 109 |
1 files changed, 0 insertions, 109 deletions
diff --git a/vanilla/node_modules/css-tree/lib/definition-syntax/scanner.js b/vanilla/node_modules/css-tree/lib/definition-syntax/scanner.js deleted file mode 100644 index d0b1895..0000000 --- a/vanilla/node_modules/css-tree/lib/definition-syntax/scanner.js +++ /dev/null @@ -1,109 +0,0 @@ -import { SyntaxError } from './SyntaxError.js'; - -const TAB = 9; -const N = 10; -const F = 12; -const R = 13; -const SPACE = 32; -const NAME_CHAR = new Uint8Array(128).map((_, idx) => - /[a-zA-Z0-9\-]/.test(String.fromCharCode(idx)) ? 1 : 0 -); - -export class Scanner { - constructor(str) { - this.str = str; - this.pos = 0; - } - - charCodeAt(pos) { - return pos < this.str.length ? this.str.charCodeAt(pos) : 0; - } - charCode() { - return this.charCodeAt(this.pos); - } - isNameCharCode(code = this.charCode()) { - return code < 128 && NAME_CHAR[code] === 1; - } - nextCharCode() { - return this.charCodeAt(this.pos + 1); - } - nextNonWsCode(pos) { - return this.charCodeAt(this.findWsEnd(pos)); - } - skipWs() { - this.pos = this.findWsEnd(this.pos); - } - findWsEnd(pos) { - for (; pos < this.str.length; pos++) { - const code = this.str.charCodeAt(pos); - if (code !== R && code !== N && code !== F && code !== SPACE && code !== TAB) { - break; - } - } - - return pos; - } - substringToPos(end) { - return this.str.substring(this.pos, this.pos = end); - } - eat(code) { - if (this.charCode() !== code) { - this.error('Expect `' + String.fromCharCode(code) + '`'); - } - - this.pos++; - } - peek() { - return this.pos < this.str.length ? this.str.charAt(this.pos++) : ''; - } - error(message) { - throw new SyntaxError(message, this.str, this.pos); - } - - scanSpaces() { - return this.substringToPos(this.findWsEnd(this.pos)); - } - scanWord() { - let end = this.pos; - - for (; end < this.str.length; end++) { - const code = this.str.charCodeAt(end); - if (code >= 128 || NAME_CHAR[code] === 0) { - break; - } - } - - if (this.pos === end) { - this.error('Expect a keyword'); - } - - return this.substringToPos(end); - } - scanNumber() { - let end = this.pos; - - for (; end < this.str.length; end++) { - const code = this.str.charCodeAt(end); - - if (code < 48 || code > 57) { - break; - } - } - - if (this.pos === end) { - this.error('Expect a number'); - } - - return this.substringToPos(end); - } - scanString() { - const end = this.str.indexOf('\'', this.pos + 1); - - if (end === -1) { - this.pos = this.str.length; - this.error('Expect an apostrophe'); - } - - return this.substringToPos(end + 1); - } -}; |
