aboutsummaryrefslogtreecommitdiffstats
path: root/vanilla/node_modules/css-tree/lib/syntax/node/AnPlusB.js
diff options
context:
space:
mode:
Diffstat (limited to 'vanilla/node_modules/css-tree/lib/syntax/node/AnPlusB.js')
-rw-r--r--vanilla/node_modules/css-tree/lib/syntax/node/AnPlusB.js292
1 files changed, 0 insertions, 292 deletions
diff --git a/vanilla/node_modules/css-tree/lib/syntax/node/AnPlusB.js b/vanilla/node_modules/css-tree/lib/syntax/node/AnPlusB.js
deleted file mode 100644
index 05c7e44..0000000
--- a/vanilla/node_modules/css-tree/lib/syntax/node/AnPlusB.js
+++ /dev/null
@@ -1,292 +0,0 @@
-import {
- isDigit,
- WhiteSpace,
- Comment,
- Ident,
- Number,
- Dimension
-} from '../../tokenizer/index.js';
-
-const PLUSSIGN = 0x002B; // U+002B PLUS SIGN (+)
-const HYPHENMINUS = 0x002D; // U+002D HYPHEN-MINUS (-)
-const N = 0x006E; // U+006E LATIN SMALL LETTER N (n)
-const DISALLOW_SIGN = true;
-const ALLOW_SIGN = false;
-
-function checkInteger(offset, disallowSign) {
- let pos = this.tokenStart + offset;
- const code = this.charCodeAt(pos);
-
- if (code === PLUSSIGN || code === HYPHENMINUS) {
- if (disallowSign) {
- this.error('Number sign is not allowed');
- }
- pos++;
- }
-
- for (; pos < this.tokenEnd; pos++) {
- if (!isDigit(this.charCodeAt(pos))) {
- this.error('Integer is expected', pos);
- }
- }
-}
-
-function checkTokenIsInteger(disallowSign) {
- return checkInteger.call(this, 0, disallowSign);
-}
-
-function expectCharCode(offset, code) {
- if (!this.cmpChar(this.tokenStart + offset, code)) {
- let msg = '';
-
- switch (code) {
- case N:
- msg = 'N is expected';
- break;
- case HYPHENMINUS:
- msg = 'HyphenMinus is expected';
- break;
- }
-
- this.error(msg, this.tokenStart + offset);
- }
-}
-
-// ... <signed-integer>
-// ... ['+' | '-'] <signless-integer>
-function consumeB() {
- let offset = 0;
- let sign = 0;
- let type = this.tokenType;
-
- while (type === WhiteSpace || type === Comment) {
- type = this.lookupType(++offset);
- }
-
- if (type !== Number) {
- if (this.isDelim(PLUSSIGN, offset) ||
- this.isDelim(HYPHENMINUS, offset)) {
- sign = this.isDelim(PLUSSIGN, offset) ? PLUSSIGN : HYPHENMINUS;
-
- do {
- type = this.lookupType(++offset);
- } while (type === WhiteSpace || type === Comment);
-
- if (type !== Number) {
- this.skip(offset);
- checkTokenIsInteger.call(this, DISALLOW_SIGN);
- }
- } else {
- return null;
- }
- }
-
- if (offset > 0) {
- this.skip(offset);
- }
-
- if (sign === 0) {
- type = this.charCodeAt(this.tokenStart);
- if (type !== PLUSSIGN && type !== HYPHENMINUS) {
- this.error('Number sign is expected');
- }
- }
-
- checkTokenIsInteger.call(this, sign !== 0);
- return sign === HYPHENMINUS ? '-' + this.consume(Number) : this.consume(Number);
-}
-
-// An+B microsyntax https://www.w3.org/TR/css-syntax-3/#anb
-export const name = 'AnPlusB';
-export const structure = {
- a: [String, null],
- b: [String, null]
-};
-
-export function parse() {
- /* eslint-disable brace-style*/
- const start = this.tokenStart;
- let a = null;
- let b = null;
-
- // <integer>
- if (this.tokenType === Number) {
- checkTokenIsInteger.call(this, ALLOW_SIGN);
- b = this.consume(Number);
- }
-
- // -n
- // -n <signed-integer>
- // -n ['+' | '-'] <signless-integer>
- // -n- <signless-integer>
- // <dashndashdigit-ident>
- else if (this.tokenType === Ident && this.cmpChar(this.tokenStart, HYPHENMINUS)) {
- a = '-1';
-
- expectCharCode.call(this, 1, N);
-
- switch (this.tokenEnd - this.tokenStart) {
- // -n
- // -n <signed-integer>
- // -n ['+' | '-'] <signless-integer>
- case 2:
- this.next();
- b = consumeB.call(this);
- break;
-
- // -n- <signless-integer>
- case 3:
- expectCharCode.call(this, 2, HYPHENMINUS);
-
- this.next();
- this.skipSC();
-
- checkTokenIsInteger.call(this, DISALLOW_SIGN);
-
- b = '-' + this.consume(Number);
- break;
-
- // <dashndashdigit-ident>
- default:
- expectCharCode.call(this, 2, HYPHENMINUS);
- checkInteger.call(this, 3, DISALLOW_SIGN);
- this.next();
-
- b = this.substrToCursor(start + 2);
- }
- }
-
- // '+'? n
- // '+'? n <signed-integer>
- // '+'? n ['+' | '-'] <signless-integer>
- // '+'? n- <signless-integer>
- // '+'? <ndashdigit-ident>
- else if (this.tokenType === Ident || (this.isDelim(PLUSSIGN) && this.lookupType(1) === Ident)) {
- let sign = 0;
- a = '1';
-
- // just ignore a plus
- if (this.isDelim(PLUSSIGN)) {
- sign = 1;
- this.next();
- }
-
- expectCharCode.call(this, 0, N);
-
- switch (this.tokenEnd - this.tokenStart) {
- // '+'? n
- // '+'? n <signed-integer>
- // '+'? n ['+' | '-'] <signless-integer>
- case 1:
- this.next();
- b = consumeB.call(this);
- break;
-
- // '+'? n- <signless-integer>
- case 2:
- expectCharCode.call(this, 1, HYPHENMINUS);
-
- this.next();
- this.skipSC();
-
- checkTokenIsInteger.call(this, DISALLOW_SIGN);
-
- b = '-' + this.consume(Number);
- break;
-
- // '+'? <ndashdigit-ident>
- default:
- expectCharCode.call(this, 1, HYPHENMINUS);
- checkInteger.call(this, 2, DISALLOW_SIGN);
- this.next();
-
- b = this.substrToCursor(start + sign + 1);
- }
- }
-
- // <ndashdigit-dimension>
- // <ndash-dimension> <signless-integer>
- // <n-dimension>
- // <n-dimension> <signed-integer>
- // <n-dimension> ['+' | '-'] <signless-integer>
- else if (this.tokenType === Dimension) {
- const code = this.charCodeAt(this.tokenStart);
- const sign = code === PLUSSIGN || code === HYPHENMINUS;
- let i = this.tokenStart + sign;
-
- for (; i < this.tokenEnd; i++) {
- if (!isDigit(this.charCodeAt(i))) {
- break;
- }
- }
-
- if (i === this.tokenStart + sign) {
- this.error('Integer is expected', this.tokenStart + sign);
- }
-
- expectCharCode.call(this, i - this.tokenStart, N);
- a = this.substring(start, i);
-
- // <n-dimension>
- // <n-dimension> <signed-integer>
- // <n-dimension> ['+' | '-'] <signless-integer>
- if (i + 1 === this.tokenEnd) {
- this.next();
- b = consumeB.call(this);
- } else {
- expectCharCode.call(this, i - this.tokenStart + 1, HYPHENMINUS);
-
- // <ndash-dimension> <signless-integer>
- if (i + 2 === this.tokenEnd) {
- this.next();
- this.skipSC();
- checkTokenIsInteger.call(this, DISALLOW_SIGN);
- b = '-' + this.consume(Number);
- }
- // <ndashdigit-dimension>
- else {
- checkInteger.call(this, i - this.tokenStart + 2, DISALLOW_SIGN);
- this.next();
- b = this.substrToCursor(i + 1);
- }
- }
- } else {
- this.error();
- }
-
- if (a !== null && a.charCodeAt(0) === PLUSSIGN) {
- a = a.substr(1);
- }
-
- if (b !== null && b.charCodeAt(0) === PLUSSIGN) {
- b = b.substr(1);
- }
-
- return {
- type: 'AnPlusB',
- loc: this.getLocation(start, this.tokenStart),
- a,
- b
- };
-}
-
-export function generate(node) {
- if (node.a) {
- const a =
- node.a === '+1' && 'n' ||
- node.a === '1' && 'n' ||
- node.a === '-1' && '-n' ||
- node.a + 'n';
-
- if (node.b) {
- const b = node.b[0] === '-' || node.b[0] === '+'
- ? node.b
- : '+' + node.b;
- this.tokenize(a + b);
- } else {
- this.tokenize(a);
- }
- } else {
- this.tokenize(node.b);
- }
-}
generated by cgit v1.2.3 (git 2.25.1) at 2026-02-25 21:01:14 +0000