Start over, this time in Astro

node_modules/css-tree/cjs/lexer/generic-urange.cjs

@@ -1,149 +0,0 @@
-'use strict';
-
-const charCodeDefinitions = require('../tokenizer/char-code-definitions.cjs');
-const types = require('../tokenizer/types.cjs');
-const utils = require('../tokenizer/utils.cjs');
-
-const PLUSSIGN = 0x002B;     // U+002B PLUS SIGN (+)
-const HYPHENMINUS = 0x002D;  // U+002D HYPHEN-MINUS (-)
-const QUESTIONMARK = 0x003F; // U+003F QUESTION MARK (?)
-const U = 0x0075;            // U+0075 LATIN SMALL LETTER U (u)
-
-function isDelim(token, code) {
-    return token !== null && token.type === types.Delim && token.value.charCodeAt(0) === code;
-}
-
-function startsWith(token, code) {
-    return token.value.charCodeAt(0) === code;
-}
-
-function hexSequence(token, offset, allowDash) {
-    let hexlen = 0;
-
-    for (let pos = offset; pos < token.value.length; pos++) {
-        const code = token.value.charCodeAt(pos);
-
-        if (code === HYPHENMINUS && allowDash && hexlen !== 0) {
-            hexSequence(token, offset + hexlen + 1, false);
-            return 6; // dissallow following question marks
-        }
-
-        if (!charCodeDefinitions.isHexDigit(code)) {
-            return 0; // not a hex digit
-        }
-
-        if (++hexlen > 6) {
-            return 0; // too many hex digits
-        }    }
-
-    return hexlen;
-}
-
-function withQuestionMarkSequence(consumed, length, getNextToken) {
-    if (!consumed) {
-        return 0; // nothing consumed
-    }
-
-    while (isDelim(getNextToken(length), QUESTIONMARK)) {
-        if (++consumed > 6) {
-            return 0; // too many question marks
-        }
-
-        length++;
-    }
-
-    return length;
-}
-
-// https://drafts.csswg.org/css-syntax/#urange
-// Informally, the <urange> production has three forms:
-// U+0001
-//      Defines a range consisting of a single code point, in this case the code point "1".
-// U+0001-00ff
-//      Defines a range of codepoints between the first and the second value, in this case
-//      the range between "1" and "ff" (255 in decimal) inclusive.
-// U+00??
-//      Defines a range of codepoints where the "?" characters range over all hex digits,
-//      in this case defining the same as the value U+0000-00ff.
-// In each form, a maximum of 6 digits is allowed for each hexadecimal number (if you treat "?" as a hexadecimal digit).
-//
-// <urange> =
-//   u '+' <ident-token> '?'* |
-//   u <dimension-token> '?'* |
-//   u <number-token> '?'* |
-//   u <number-token> <dimension-token> |
-//   u <number-token> <number-token> |
-//   u '+' '?'+
-function urange(token, getNextToken) {
-    let length = 0;
-
-    // should start with `u` or `U`
-    if (token === null || token.type !== types.Ident || !utils.cmpChar(token.value, 0, U)) {
-        return 0;
-    }
-
-    token = getNextToken(++length);
-    if (token === null) {
-        return 0;
-    }
-
-    // u '+' <ident-token> '?'*
-    // u '+' '?'+
-    if (isDelim(token, PLUSSIGN)) {
-        token = getNextToken(++length);
-        if (token === null) {
-            return 0;
-        }
-
-        if (token.type === types.Ident) {
-            // u '+' <ident-token> '?'*
-            return withQuestionMarkSequence(hexSequence(token, 0, true), ++length, getNextToken);
-        }
-
-        if (isDelim(token, QUESTIONMARK)) {
-            // u '+' '?'+
-            return withQuestionMarkSequence(1, ++length, getNextToken);
-        }
-
-        // Hex digit or question mark is expected
-        return 0;
-    }
-
-    // u <number-token> '?'*
-    // u <number-token> <dimension-token>
-    // u <number-token> <number-token>
-    if (token.type === types.Number) {
-        const consumedHexLength = hexSequence(token, 1, true);
-        if (consumedHexLength === 0) {
-            return 0;
-        }
-
-        token = getNextToken(++length);
-        if (token === null) {
-            // u <number-token> <eof>
-            return length;
-        }
-
-        if (token.type === types.Dimension || token.type === types.Number) {
-            // u <number-token> <dimension-token>
-            // u <number-token> <number-token>
-            if (!startsWith(token, HYPHENMINUS) || !hexSequence(token, 1, false)) {
-                return 0;
-            }
-
-            return length + 1;
-        }
-
-        // u <number-token> '?'*
-        return withQuestionMarkSequence(consumedHexLength, length, getNextToken);
-    }
-
-    // u <dimension-token> '?'*
-    if (token.type === types.Dimension) {
-        return withQuestionMarkSequence(hexSequence(token, 1, true), ++length, getNextToken);
-    }
-
-    return 0;
-}
-
-module.exports = urange;