diff options
Diffstat (limited to 'packages/astro-parser/src/parse/utils/html.ts')
| -rw-r--r-- | packages/astro-parser/src/parse/utils/html.ts | 162 |
1 files changed, 81 insertions, 81 deletions
diff --git a/packages/astro-parser/src/parse/utils/html.ts b/packages/astro-parser/src/parse/utils/html.ts index e4669a2db..7b9e35bc6 100644 --- a/packages/astro-parser/src/parse/utils/html.ts +++ b/packages/astro-parser/src/parse/utils/html.ts @@ -3,30 +3,30 @@ import entities from './entities.js'; const windows_1252 = [ - 8364, 129, 8218, 402, 8222, 8230, 8224, 8225, 710, 8240, 352, 8249, 338, 141, 381, 143, 144, 8216, 8217, 8220, 8221, 8226, 8211, 8212, 732, 8482, 353, 8250, 339, 157, 382, 376, + 8364, 129, 8218, 402, 8222, 8230, 8224, 8225, 710, 8240, 352, 8249, 338, 141, 381, 143, 144, 8216, 8217, 8220, 8221, 8226, 8211, 8212, 732, 8482, 353, 8250, 339, 157, 382, 376, ]; const entity_pattern = new RegExp(`&(#?(?:x[\\w\\d]+|\\d+|${Object.keys(entities).join('|')}))(?:;|\\b)`, 'g'); export function decode_character_references(html: string) { - return html.replace(entity_pattern, (match, entity) => { - let code; - - // Handle named entities - if (entity[0] !== '#') { - code = entities[entity]; - } else if (entity[1] === 'x') { - code = parseInt(entity.substring(2), 16); - } else { - code = parseInt(entity.substring(1), 10); - } - - if (!code) { - return match; - } - - return String.fromCodePoint(validate_code(code)); - }); + return html.replace(entity_pattern, (match, entity) => { + let code; + + // Handle named entities + if (entity[0] !== '#') { + code = entities[entity]; + } else if (entity[1] === 'x') { + code = parseInt(entity.substring(2), 16); + } else { + code = parseInt(entity.substring(1), 10); + } + + if (!code) { + return match; + } + + return String.fromCodePoint(validate_code(code)); + }); } const NUL = 0; @@ -37,76 +37,76 @@ const NUL = 0; // // Source: http://en.wikipedia.org/wiki/Character_encodings_in_HTML#Illegal_characters function validate_code(code: number) { - // line feed becomes generic whitespace - if (code === 10) { - return 32; - } - - // ASCII range. (Why someone would use HTML entities for ASCII characters I don't know, but...) - if (code < 128) { - return code; - } - - // code points 128-159 are dealt with leniently by browsers, but they're incorrect. We need - // to correct the mistake or we'll end up with missing € signs and so on - if (code <= 159) { - return windows_1252[code - 128]; - } - - // basic multilingual plane - if (code < 55296) { - return code; - } - - // UTF-16 surrogate halves - if (code <= 57343) { - return NUL; - } - - // rest of the basic multilingual plane - if (code <= 65535) { - return code; - } - - // supplementary multilingual plane 0x10000 - 0x1ffff - if (code >= 65536 && code <= 131071) { - return code; - } - - // supplementary ideographic plane 0x20000 - 0x2ffff - if (code >= 131072 && code <= 196607) { - return code; - } - - return NUL; + // line feed becomes generic whitespace + if (code === 10) { + return 32; + } + + // ASCII range. (Why someone would use HTML entities for ASCII characters I don't know, but...) + if (code < 128) { + return code; + } + + // code points 128-159 are dealt with leniently by browsers, but they're incorrect. We need + // to correct the mistake or we'll end up with missing € signs and so on + if (code <= 159) { + return windows_1252[code - 128]; + } + + // basic multilingual plane + if (code < 55296) { + return code; + } + + // UTF-16 surrogate halves + if (code <= 57343) { + return NUL; + } + + // rest of the basic multilingual plane + if (code <= 65535) { + return code; + } + + // supplementary multilingual plane 0x10000 - 0x1ffff + if (code >= 65536 && code <= 131071) { + return code; + } + + // supplementary ideographic plane 0x20000 - 0x2ffff + if (code >= 131072 && code <= 196607) { + return code; + } + + return NUL; } // based on http://developers.whatwg.org/syntax.html#syntax-tag-omission const disallowed_contents = new Map([ - ['li', new Set(['li'])], - ['dt', new Set(['dt', 'dd'])], - ['dd', new Set(['dt', 'dd'])], - ['p', new Set('address article aside blockquote div dl fieldset footer form h1 h2 h3 h4 h5 h6 header hgroup hr main menu nav ol p pre section table ul'.split(' '))], - ['rt', new Set(['rt', 'rp'])], - ['rp', new Set(['rt', 'rp'])], - ['optgroup', new Set(['optgroup'])], - ['option', new Set(['option', 'optgroup'])], - ['thead', new Set(['tbody', 'tfoot'])], - ['tbody', new Set(['tbody', 'tfoot'])], - ['tfoot', new Set(['tbody'])], - ['tr', new Set(['tr', 'tbody'])], - ['td', new Set(['td', 'th', 'tr'])], - ['th', new Set(['td', 'th', 'tr'])], + ['li', new Set(['li'])], + ['dt', new Set(['dt', 'dd'])], + ['dd', new Set(['dt', 'dd'])], + ['p', new Set('address article aside blockquote div dl fieldset footer form h1 h2 h3 h4 h5 h6 header hgroup hr main menu nav ol p pre section table ul'.split(' '))], + ['rt', new Set(['rt', 'rp'])], + ['rp', new Set(['rt', 'rp'])], + ['optgroup', new Set(['optgroup'])], + ['option', new Set(['option', 'optgroup'])], + ['thead', new Set(['tbody', 'tfoot'])], + ['tbody', new Set(['tbody', 'tfoot'])], + ['tfoot', new Set(['tbody'])], + ['tr', new Set(['tr', 'tbody'])], + ['td', new Set(['td', 'th', 'tr'])], + ['th', new Set(['td', 'th', 'tr'])], ]); // can this be a child of the parent element, or does it implicitly // close it, like `<li>one<li>two`? export function closing_tag_omitted(current: string, next?: string) { - if (disallowed_contents.has(current)) { - if (!next || disallowed_contents.get(current).has(next)) { - return true; - } - } + if (disallowed_contents.has(current)) { + if (!next || disallowed_contents.get(current).has(next)) { + return true; + } + } - return false; + return false; } |