terser - npm Package Compare versions
+125
| // surrogate safe regexps adapted from https://github.com/mathiasbynens/unicode-8.0.0/tree/89b412d8a71ecca9ed593d9e9fa073ab64acfebe/Binary_Property | ||
| /** Used for checking if a string is an identifier during output. | ||
| * We don't use \p{ID_Start} and \p{ID_Continue} because that's a moving target | ||
| * and Terser's output should run on old browsers. | ||
| */ | ||
| var UNICODE_NARROW = { | ||
| ID_Start: 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| ||
| ID_Continue: 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2-\uFFC7\uFFCA-\uFFCF\uFFD2-\uFFD7\uFFDA-\uFFDC]|\uD800[\uDC00-\uDC0B\uDC0D-\uDC26\uDC28-\uDC3A\uDC3C\uDC3D\uDC3F-\uDC4D\uDC50-\uDC5D\uDC80-\uDCFA\uDD40-\uDD74\uDDFD\uDE80-\uDE9C\uDEA0-\uDED0\uDEE0\uDF00-\uDF1F\uDF30-\uDF4A\uDF50-\uDF7A\uDF80-\uDF9D\uDFA0-\uDFC3\uDFC8-\uDFCF\uDFD1-\uDFD5]|\uD801[\uDC00-\uDC9D\uDCA0-\uDCA9\uDD00-\uDD27\uDD30-\uDD63\uDE00-\uDF36\uDF40-\uDF55\uDF60-\uDF67]|\uD802[\uDC00-\uDC05\uDC08\uDC0A-\uDC35\uDC37\uDC38\uDC3C\uDC3F-\uDC55\uDC60-\uDC76\uDC80-\uDC9E\uDCE0-\uDCF2\uDCF4\uDCF5\uDD00-\uDD15\uDD20-\uDD39\uDD80-\uDDB7\uDDBE\uDDBF\uDE00-\uDE03\uDE05\uDE06\uDE0C-\uDE13\uDE15-\uDE17\uDE19-\uDE33\uDE38-\uDE3A\uDE3F\uDE60-\uDE7C\uDE80-\uDE9C\uDEC0-\uDEC7\uDEC9-\uDEE6\uDF00-\uDF35\uDF40-\uDF55\uDF60-\uDF72\uDF80-\uDF91]|\uD803[\uDC00-\uDC48\uDC80-\uDCB2\uDCC0-\uDCF2]|\uD804[\uDC00-\uDC46\uDC66-\uDC6F\uDC7F-\uDCBA\uDCD0-\uDCE8\uDCF0-\uDCF9\uDD00-\uDD34\uDD36-\uDD3F\uDD50-\uDD73\uDD76\uDD80-\uDDC4\uDDCA-\uDDCC\uDDD0-\uDDDA\uDDDC\uDE00-\uDE11\uDE13-\uDE37\uDE80-\uDE86\uDE88\uDE8A-\uDE8D\uDE8F-\uDE9D\uDE9F-\uDEA8\uDEB0-\uDEEA\uDEF0-\uDEF9\uDF00-\uDF03\uDF05-\uDF0C\uDF0F\uDF10\uDF13-\uDF28\uDF2A-\uDF30\uDF32\uDF33\uDF35-\uDF39\uDF3C-\uDF44\uDF47\uDF48\uDF4B-\uDF4D\uDF50\uDF57\uDF5D-\uDF63\uDF66-\uDF6C\uDF70-\uDF74]|\uD805[\uDC80-\uDCC5\uDCC7\uDCD0-\uDCD9\uDD80-\uDDB5\uDDB8-\uDDC0\uDDD8-\uDDDD\uDE00-\uDE40\uDE44\uDE50-\uDE59\uDE80-\uDEB7\uDEC0-\uDEC9\uDF00-\uDF19\uDF1D-\uDF2B\uDF30-\uDF39]|\uD806[\uDCA0-\uDCE9\uDCFF\uDEC0-\uDEF8]|\uD808[\uDC00-\uDF99]|\uD809[\uDC00-\uDC6E\uDC80-\uDD43]|[\uD80C\uD840-\uD868\uD86A-\uD86C\uD86F-\uD872][\uDC00-\uDFFF]|\uD80D[\uDC00-\uDC2E]|\uD811[\uDC00-\uDE46]|\uD81A[\uDC00-\uDE38\uDE40-\uDE5E\uDE60-\uDE69\uDED0-\uDEED\uDEF0-\uDEF4\uDF00-\uDF36\uDF40-\uDF43\uDF50-\uDF59\uDF63-\uDF77\uDF7D-\uDF8F]|\uD81B[\uDF00-\uDF44\uDF50-\uDF7E\uDF8F-\uDF9F]|\uD82C[\uDC00\uDC01]|\uD82F[\uDC00-\uDC6A\uDC70-\uDC7C\uDC80-\uDC88\uDC90-\uDC99\uDC9D\uDC9E]|\uD834[\uDD65-\uDD69\uDD6D-\uDD72\uDD7B-\uDD82\uDD85-\uDD8B\uDDAA-\uDDAD\uDE42-\uDE44]|\uD835[\uDC00-\uDC54\uDC56-\uDC9C\uDC9E\uDC9F\uDCA2\uDCA5\uDCA6\uDCA9-\uDCAC\uDCAE-\uDCB9\uDCBB\uDCBD-\uDCC3\uDCC5-\uDD05\uDD07-\uDD0A\uDD0D-\uDD14\uDD16-\uDD1C\uDD1E-\uDD39\uDD3B-\uDD3E\uDD40-\uDD44\uDD46\uDD4A-\uDD50\uDD52-\uDEA5\uDEA8-\uDEC0\uDEC2-\uDEDA\uDEDC-\uDEFA\uDEFC-\uDF14\uDF16-\uDF34\uDF36-\uDF4E\uDF50-\uDF6E\uDF70-\uDF88\uDF8A-\uDFA8\uDFAA-\uDFC2\uDFC4-\uDFCB\uDFCE-\uDFFF]|\uD836[\uDE00-\uDE36\uDE3B-\uDE6C\uDE75\uDE84\uDE9B-\uDE9F\uDEA1-\uDEAF]|\uD83A[\uDC00-\uDCC4\uDCD0-\uDCD6]|\uD83B[\uDE00-\uDE03\uDE05-\uDE1F\uDE21\uDE22\uDE24\uDE27\uDE29-\uDE32\uDE34-\uDE37\uDE39\uDE3B\uDE42\uDE47\uDE49\uDE4B\uDE4D-\uDE4F\uDE51\uDE52\uDE54\uDE57\uDE59\uDE5B\uDE5D\uDE5F\uDE61\uDE62\uDE64\uDE67-\uDE6A\uDE6C-\uDE72\uDE74-\uDE77\uDE79-\uDE7C\uDE7E\uDE80-\uDE89\uDE8B-\uDE9B\uDEA1-\uDEA3\uDEA5-\uDEA9\uDEAB-\uDEBB]|\uD869[\uDC00-\uDED6\uDF00-\uDFFF]|\uD86D[\uDC00-\uDF34\uDF40-\uDFFF]|\uD86E[\uDC00-\uDC1D\uDC20-\uDFFF]|\uD873[\uDC00-\uDEA1]|\uD87E[\uDC00-\uDE1D]|\uDB40[\uDD00-\uDDEF])+/, | ||
| }; | ||
| /** For detecting and bounding identifiers in source text. Broader than | ||
| * UNICODE_NARROW depending on the JS runtime's unicode version */ | ||
| var UNICODE_BROAD = UNICODE_NARROW; | ||
| try { | ||
| UNICODE_BROAD = { | ||
| // https://262.ecma-international.org/13.0/#prod-IdentifierStartChar | ||
| // $, _, ID_Start | ||
| ID_Start: new RegExp("[_$\\p{ID_Start}]", "u"), | ||
| // https://262.ecma-international.org/13.0/#prod-IdentifierPartChar | ||
| // $, zero-width-joiner, zero-width-non-joiner, ID_Continue | ||
| ID_Continue: new RegExp("[$\\u200C\\u200D\\p{ID_Continue}]+", "u"), | ||
| }; | ||
| } catch(e) { | ||
| // Could not use modern JS \p{...}. | ||
| } | ||
| const BASIC_IDENT = /^[a-z_$][a-z0-9_$]*$/i; | ||
| export function is_basic_identifier_string(str) { | ||
| return BASIC_IDENT.test(str); | ||
| } | ||
| export function get_full_char(str, pos) { | ||
| if (is_surrogate_pair_head(str.charCodeAt(pos))) { | ||
| if (is_surrogate_pair_tail(str.charCodeAt(pos + 1))) { | ||
| return str.charAt(pos) + str.charAt(pos + 1); | ||
| } | ||
| } else if (is_surrogate_pair_tail(str.charCodeAt(pos))) { | ||
| if (is_surrogate_pair_head(str.charCodeAt(pos - 1))) { | ||
| return str.charAt(pos - 1) + str.charAt(pos); | ||
| } | ||
| } | ||
| return str.charAt(pos); | ||
| } | ||
| export function get_full_char_code(str, pos) { | ||
| // https://en.wikipedia.org/wiki/Universal_Character_Set_characters#Surrogates | ||
| const char_code = str.charCodeAt(pos); | ||
| if (is_surrogate_pair_head(char_code)) { | ||
| return 0x10000 + (char_code - 0xd800 << 10) + str.charCodeAt(pos + 1) - 0xdc00; | ||
| } | ||
| return char_code; | ||
| } | ||
| export function get_full_char_length(str) { | ||
| var surrogates = 0; | ||
| for (var i = 0; i < str.length; i++) { | ||
| if (is_surrogate_pair_head(str.charCodeAt(i)) && is_surrogate_pair_tail(str.charCodeAt(i + 1))) { | ||
| surrogates++; | ||
| i++; | ||
| } | ||
| } | ||
| return str.length - surrogates; | ||
| } | ||
| export function from_char_code(code) { | ||
| // Based on https://github.com/mathiasbynens/String.fromCodePoint/blob/master/fromcodepoint.js | ||
| if (code > 0xFFFF) { | ||
| code -= 0x10000; | ||
| return (String.fromCharCode((code >> 10) + 0xD800) + | ||
| String.fromCharCode((code % 0x400) + 0xDC00)); | ||
| } | ||
| return String.fromCharCode(code); | ||
| } | ||
| export function is_surrogate_pair_head(code) { | ||
| return code >= 0xd800 && code <= 0xdbff; | ||
| } | ||
| export function is_surrogate_pair_tail(code) { | ||
| return code >= 0xdc00 && code <= 0xdfff; | ||
| } | ||
| export function is_identifier_start(ch) { | ||
| return UNICODE_NARROW.ID_Start.test(ch); | ||
| } | ||
| export function is_identifier_char(ch) { | ||
| return UNICODE_NARROW.ID_Continue.test(ch); | ||
| } | ||
| /** supports a "wider" range of identifiers -- as unicode evolves, new characters are accepted */ | ||
| export function is_identifier_start_broad(ch) { | ||
| return UNICODE_BROAD.ID_Start.test(ch); | ||
| } | ||
| /** supports a "wider" range of identifiers -- as unicode evolves, new characters are accepted */ | ||
| export function is_identifier_char_broad(ch) { | ||
| return UNICODE_BROAD.ID_Continue.test(ch); | ||
| } | ||
| export function is_identifier_string(str, allow_surrogates) { | ||
| if (BASIC_IDENT.test(str)) { | ||
| return true; | ||
| } | ||
| if (!allow_surrogates && /[\ud800-\udfff]/.test(str)) { | ||
| return false; | ||
| } | ||
| var match = UNICODE_NARROW.ID_Start.exec(str); | ||
| if (!match || match.index !== 0) { | ||
| return false; | ||
| } | ||
| str = str.slice(match[0].length); | ||
| if (!str) { | ||
| return true; | ||
| } | ||
| match = UNICODE_NARROW.ID_Continue.exec(str); | ||
| return !!match && match[0].length === str.length; | ||
| } | ||
+6
-0
| # Changelog | ||
| ## v5.49.0 | ||
| - Add ResizeObserver `box` option to domprops | ||
| - Do not evaluate exponentiation of BigInt | ||
| - Parse identifiers from newer unicode versions, and escape them for older runtimes | ||
| ## v5.48.0 | ||
@@ -4,0 +10,0 @@ |
@@ -293,8 +293,11 @@ /*********************************************************************** | ||
| // Do not mix BigInt and Number; Don't use `>>>` on BigInt or `/ 0n` | ||
| // Do not mix BigInt and Number | ||
| // Don't use `>>>` on BigInt or `/ 0n` (error) | ||
| // Don't use `**` on BigInt (slow) | ||
| if ( | ||
| (typeof left === "bigint") !== (typeof right === "bigint") | ||
| || typeof left === "bigint" | ||
| && (this.operator === ">>>" | ||
| || this.operator === "/" && Number(right) === 0) | ||
| && (this.operator === "/" && Number(right) === 0 | ||
| || this.operator === ">>>" | ||
| || this.operator === "**") | ||
| ) { | ||
@@ -301,0 +304,0 @@ return this; |
+2
-2
@@ -7,3 +7,3 @@ { | ||
| "license": "BSD-2-Clause", | ||
| "version": "5.48.0", | ||
| "version": "5.49.0", | ||
| "engines": { | ||
@@ -67,3 +67,3 @@ "node": ">=10" | ||
| "serialize-javascript": "6.0.2", | ||
| "js-yaml": "4.1.1" | ||
| "js-yaml": "4.2.0" | ||
| }, | ||
@@ -70,0 +70,0 @@ "scripts": { |
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No alert changes
Improved metrics
- Total package byte prevSize
2309417
0.31%- Number of package files
43
2.38%- Lines of code
66133
0.25%No dependency changes