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Related to wooorm/property-information#6. Related to GH-5.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,47 @@ | ||
| 'use strict' | ||
|
|
||
| // Characters. | ||
| var NULL = '\0' | ||
| var AMP = '&' | ||
| var SP = ' ' | ||
| var TB = '\t' | ||
| var GR = '`' | ||
| var DQ = '"' | ||
| var SQ = "'" | ||
| var EQ = '=' | ||
| var LT = '<' | ||
| var GT = '>' | ||
| var SO = '/' | ||
| var LF = '\n' | ||
| var CR = '\r' | ||
| var FF = '\f' | ||
|
|
||
| var whitespace = [SP, TB, LF, CR, FF] | ||
| // https://html.spec.whatwg.org/#attribute-name-state | ||
| var name = whitespace.concat(AMP, SO, GT, EQ) | ||
| // https://html.spec.whatwg.org/#attribute-value-(unquoted)-state | ||
| var unquoted = whitespace.concat(AMP, GT) | ||
| var unquotedSafe = unquoted.concat(NULL, DQ, SQ, LT, EQ, GR) | ||
| // https://html.spec.whatwg.org/#attribute-value-(single-quoted)-state | ||
| var singleQuoted = [AMP, SQ] | ||
| // https://html.spec.whatwg.org/#attribute-value-(double-quoted)-state | ||
| var doubleQuoted = [AMP, DQ] | ||
|
|
||
| // Maps of subsets. Each value is a matrix of tuples. | ||
| // The first value causes parse errors, the second is valid. | ||
| // Of both values, the first value is unsafe, and the second is safe. | ||
| module.exports = { | ||
| name: [ | ||
| [name, name.concat(DQ, SQ, GR)], | ||
| [name.concat(NULL, DQ, SQ, LT), name.concat(NULL, DQ, SQ, LT, GR)] | ||
| ], | ||
| unquoted: [[unquoted, unquotedSafe], [unquotedSafe, unquotedSafe]], | ||
| single: [ | ||
| [singleQuoted, singleQuoted.concat(DQ, GR)], | ||
| [singleQuoted.concat(NULL), singleQuoted.concat(NULL, DQ, GR)] | ||
| ], | ||
| double: [ | ||
| [doubleQuoted, doubleQuoted.concat(SQ, GR)], | ||
| [doubleQuoted.concat(NULL), doubleQuoted.concat(NULL, SQ, GR)] | ||
| ] | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,90 +1,50 @@ | ||
| 'use strict' | ||
|
|
||
| var html = require('property-information/html') | ||
| var svg = require('property-information/svg') | ||
| var voids = require('html-void-elements') | ||
| var omission = require('./omission') | ||
| var one = require('./one') | ||
|
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| module.exports = toHTML | ||
|
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| /* Characters. */ | ||
| var NULL = '\0' | ||
| var AMP = '&' | ||
| var SPACE = ' ' | ||
| var TAB = '\t' | ||
| var GR = '`' | ||
| var DQ = '"' | ||
| var SQ = "'" | ||
| var EQ = '=' | ||
| var LT = '<' | ||
| var GT = '>' | ||
| var SO = '/' | ||
| var LF = '\n' | ||
| var CR = '\r' | ||
| var FF = '\f' | ||
|
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||
| /* https://html.spec.whatwg.org/#attribute-name-state */ | ||
| var NAME = [AMP, SPACE, TAB, LF, CR, FF, SO, GT, EQ] | ||
| var CLEAN_NAME = NAME.concat(NULL, DQ, SQ, LT) | ||
|
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||
| /* In safe mode, all attribute values contain DQ (`"`), | ||
| * SQ (`'`), and GR (`` ` ``), as those can create XSS | ||
| * issues in older browsers: | ||
| * - https://html5sec.org/#59 | ||
| * - https://html5sec.org/#102 | ||
| * - https://html5sec.org/#108 */ | ||
| var QUOTES = [DQ, SQ, GR] | ||
|
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||
| /* https://html.spec.whatwg.org/#attribute-value-(unquoted)-state */ | ||
| var UQ_VALUE = [AMP, SPACE, TAB, LF, CR, FF, GT] | ||
| var UQ_VALUE_CLEAN = UQ_VALUE.concat(NULL, DQ, SQ, LT, EQ, GR) | ||
|
|
||
| /* https://html.spec.whatwg.org/#attribute-value-(single-quoted)-state */ | ||
| var SQ_VALUE = [AMP, SQ] | ||
| var SQ_VALUE_CLEAN = SQ_VALUE.concat(NULL) | ||
|
|
||
| /* https://html.spec.whatwg.org/#attribute-value-(double-quoted)-state */ | ||
| var DQ_VALUE = [AMP, DQ] | ||
| var DQ_VALUE_CLEAN = DQ_VALUE.concat(NULL) | ||
|
|
||
| /* Stringify the given HAST node. */ | ||
| function toHTML(node, options) { | ||
| var settings = options || {} | ||
| var quote = settings.quote || DQ | ||
| var smart = settings.quoteSmart | ||
| var errors = settings.allowParseErrors | ||
| var characters = settings.allowDangerousCharacters | ||
| var alternative = quote === DQ ? SQ : DQ | ||
| var name = errors ? NAME : CLEAN_NAME | ||
| var unquoted = errors ? UQ_VALUE : UQ_VALUE_CLEAN | ||
| var singleQuoted = errors ? SQ_VALUE : SQ_VALUE_CLEAN | ||
| var doubleQuoted = errors ? DQ_VALUE : DQ_VALUE_CLEAN | ||
| var config | ||
| var smart = settings.quoteSmart | ||
|
|
||
| if (quote !== DQ && quote !== SQ) { | ||
| throw new Error( | ||
| 'Invalid quote `' + quote + '`, expected `' + SQ + '` or `' + DQ + '`' | ||
| ) | ||
| } | ||
|
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||
| config = { | ||
| NAME: name.concat(characters ? [] : QUOTES), | ||
| UNQUOTED: unquoted.concat(characters ? [] : QUOTES), | ||
| DOUBLE_QUOTED: doubleQuoted.concat(characters ? [] : QUOTES), | ||
| SINGLE_QUOTED: singleQuoted.concat(characters ? [] : QUOTES), | ||
| omit: settings.omitOptionalTags && omission, | ||
| quote: quote, | ||
| alternative: smart ? alternative : null, | ||
| unquoted: Boolean(settings.preferUnquoted), | ||
| tight: settings.tightAttributes, | ||
| tightDoctype: Boolean(settings.tightDoctype), | ||
| tightLists: settings.tightCommaSeparatedLists, | ||
| tightClose: settings.tightSelfClosing, | ||
| collapseEmpty: settings.collapseEmptyAttributes, | ||
| dangerous: settings.allowDangerousHTML, | ||
| voids: settings.voids || voids.concat(), | ||
| entities: settings.entities || {}, | ||
| close: settings.closeSelfClosing | ||
| } | ||
|
|
||
| return one(config, node) | ||
| return one( | ||
| { | ||
| valid: settings.allowParseErrors ? 0 : 1, | ||
| safe: settings.allowDangerousCharacters ? 0 : 1, | ||
| schema: settings.space === 'svg' ? svg : html, | ||
| omit: settings.omitOptionalTags && omission, | ||
| quote: quote, | ||
| alternative: smart ? alternative : null, | ||
| unquoted: Boolean(settings.preferUnquoted), | ||
| tight: settings.tightAttributes, | ||
| tightDoctype: Boolean(settings.tightDoctype), | ||
| tightLists: settings.tightCommaSeparatedLists, | ||
| tightClose: settings.tightSelfClosing, | ||
| collapseEmpty: settings.collapseEmptyAttributes, | ||
| dangerous: settings.allowDangerousHTML, | ||
| voids: settings.voids || voids.concat(), | ||
| entities: settings.entities || {}, | ||
| close: settings.closeSelfClosing, | ||
| closeEmpty: settings.closeEmptyElements | ||
| }, | ||
| node | ||
| ) | ||
| } |
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