oniguruma-to-es - npm Package Compare versions

Comparing version 0.2.0 to 0.3.0

dist/index.min.js

@@ -1,4 +0,4 @@
-var OnigurumaToES=(()=>{var oe=Object.defineProperty;var wt=Object.getOwnPropertyDescriptor;var At=Object.getOwnPropertyNames;var _t=Object.prototype.hasOwnProperty;var kt=(e,t)=>{for(var n in t)oe(e,n,{get:t[n],enumerable:!0})},St=(e,t,n,a)=>{if(t&&typeof t=="object"||typeof t=="function")for(let s of At(t))!_t.call(e,s)&&s!==n&&oe(e,s,{get:()=>t[s],enumerable:!(a=wt(t,s))||a.enumerable});return e};var yt=e=>St(oe({},"__esModule",{value:!0}),e);var Dr={};kt(Dr,{EmulatedRegExp:()=>ae,toDetails:()=>Et,toOnigurumaAst:()=>Or,toRegExp:()=>Ur});var Z={ES2018:2018,ES2024:2024,ES2025:2025};function J(e){if(e?.target!==void 0&&!Z[e.target])throw new Error(`Unexpected target "${e.target}"`);return{accuracy:"default",avoidSubclass:!1,flags:"",global:!1,hasIndices:!1,maxRecursionDepth:6,target:"ES2024",tmGrammar:!1,verbose:!1,...e}}var _=String.fromCodePoint,g=String.raw;function M(e,{enable:t,disable:n}){return{dotAll:!n?.dotAll&&!!(t?.dotAll||e.dotAll),ignoreCase:!n?.ignoreCase&&!!(t?.ignoreCase||e.ignoreCase)}}function O(e,t,n){return e.has(t)||e.set(t,n),e.get(t)}function j(e,t){return Z[e]>=Z[t]}function I(e,t){if(!e)throw new Error(t??"Value expected");return e}var xt=new Set([_(304),_(305)]);function ce(e){if(xt.has(e))return[e];let t=new Set,n=e.toLowerCase(),a=n.toUpperCase(),s=It.get(n),i=Ft.get(n);return[...a].length===1&&t.add(a),t.add(n),s&&t.add(s),i&&t.add(i),[...t]}var ue=new Set(["C","Other","Cc","Control","cntrl","Cf","Format","Cn","Unassigned","Co","Private_Use","Cs","Surrogate","L","Letter","LC","Cased_Letter","Ll","Lowercase_Letter","Lm","Modifier_Letter","Lo","Other_Letter","Lt","Titlecase_Letter","Lu","Uppercase_Letter","M","Mark","Combining_Mark","Mc","Spacing_Mark","Me","Enclosing_Mark","Mn","Nonspacing_Mark","N","Number","Nd","Decimal_Number","digit","Nl","Letter_Number","No","Other_Number","P","Punctuation","punct","Pc","Connector_Punctuation","Pd","Dash_Punctuation","Pe","Close_Punctuation","Pf","Final_Punctuation","Pi","Initial_Punctuation","Po","Other_Punctuation","Ps","Open_Punctuation","S","Symbol","Sc","Currency_Symbol","Sk","Modifier_Symbol","Sm","Math_Symbol","So","Other_Symbol","Z","Separator","Zl","Line_Separator","Zp","Paragraph_Separator","Zs","Space_Separator","ASCII","ASCII_Hex_Digit","AHex","Alphabetic","Alpha","Any","Assigned","Bidi_Control","Bidi_C","Bidi_Mirrored","Bidi_M","Case_Ignorable","CI","Cased","Changes_When_Casefolded","CWCF","Changes_When_Casemapped","CWCM","Changes_When_Lowercased","CWL","Changes_When_NFKC_Casefolded","CWKCF","Changes_When_Titlecased","CWT","Changes_When_Uppercased","CWU","Dash","Default_Ignorable_Code_Point","DI","Deprecated","Dep","Diacritic","Dia","Emoji","Emoji_Component","EComp","Emoji_Modifier","EMod","Emoji_Modifier_Base","EBase","Emoji_Presentation","EPres","Extended_Pictographic","ExtPict","Extender","Ext","Grapheme_Base","Gr_Base","Grapheme_Extend","Gr_Ext","Hex_Digit","Hex","IDS_Binary_Operator","IDSB","IDS_Trinary_Operator","IDST","ID_Continue","IDC","ID_Start","IDS","Ideographic","Ideo","Join_Control","Join_C","Logical_Order_Exception","LOE","Lowercase","Lower","Math","Noncharacter_Code_Point","NChar","Pattern_Syntax","Pat_Syn","Pattern_White_Space","Pat_WS","Quotation_Mark","QMark","Radical","Regional_Indicator","RI","Sentence_Terminal","STerm","Soft_Dotted","SD","Terminal_Punctuation","Term","Unified_Ideograph","UIdeo","Uppercase","Upper","Variation_Selector","VS","White_Space","space","XID_Continue","XIDC","XID_Start","XIDS"]),le=new Map;for(let e of ue)le.set(K(e),e);var bt=new Set(["Basic_Emoji","Emoji_Keycap_Sequence","RGI_Emoji","RGI_Emoji_Flag_Sequence","RGI_Emoji_Modifier_Sequence","RGI_Emoji_Tag_Sequence","RGI_Emoji_ZWJ_Sequence"]),pe=new Map;for(let e of bt)pe.set(K(e),e);var ye=new Set("Dogr Dogra Gong Gunjala_Gondi Hanifi_Rohingya Maka Makasar Medefaidrin Medf Old_Sogdian Rohg Sogd Sogdian Sogo Extended_Pictographic Elym Elymaic Hmnp Nand Nandinagari Nyiakeng_Puachue_Hmong Wancho Wcho Chorasmian Chrs Diak Dives_Akuru Khitan_Small_Script Kits Yezi Yezidi EBase EComp EMod EPres ExtPict Cpmn Cypro_Minoan Old_Uyghur Ougr Tangsa Tnsa Toto Vith Vithkuqi Gara Garay Gukh Gurung_Khema Hrkt Katakana_Or_Hiragana Kawi Kirat_Rai Krai Nag_Mundari Nagm Ol_Onal Onao Sunu Sunuwar Todhri Todr Tulu_Tigalari Tutg Unknown Zzzz".split(" ")),Ft=new Map([[_(223),_(7838)],[_(107),_(8490)],[_(229),_(8491)],[_(969),_(8486)]]),It=new Map([L(453),L(456),L(459),L(498),...ie(8072,8079),...ie(8088,8095),...ie(8104,8111),L(8124),L(8140),L(8188)]),Y=new Map([["alnum",g`[\p{Alpha}\p{Nd}]`],["alpha",g`\p{Alpha}`],["ascii",g`\p{ASCII}`],["blank",g`[\p{Zs}\t]`],["cntrl",g`\p{cntrl}`],["digit",g`\p{Nd}`],["graph",g`[\P{space}&&\P{cntrl}&&\P{Cn}&&\P{Cs}]`],["lower",g`\p{Lower}`],["print",g`[[\P{space}&&\P{cntrl}&&\P{Cn}&&\P{Cs}]\p{Zs}]`],["punct",g`[\p{P}\p{S}]`],["space",g`\p{space}`],["upper",g`\p{Upper}`],["word",g`[\p{Alpha}\p{M}\p{Nd}\p{Pc}]`],["xdigit",g`\p{AHex}`]]),xe=new Set(["alnum","blank","graph","print","word","xdigit"]);function $t(e,t){let n=[];for(let a=e;a<=t;a++)n.push(a);return n}function K(e){return e.replace(/[- _]+/g,"").toLowerCase()}function L(e){let t=_(e);return[t.toLowerCase(),t]}function ie(e,t){return $t(e,t).map(n=>L(n))}var fe=new Set(["Lower","Lowercase","Upper","Uppercase","Ll","Lowercase_Letter","Lt","Titlecase_Letter","Lu","Uppercase_Letter"]);var d={Alternator:"Alternator",Assertion:"Assertion",Backreference:"Backreference",Character:"Character",CharacterClassClose:"CharacterClassClose",CharacterClassHyphen:"CharacterClassHyphen",CharacterClassIntersector:"CharacterClassIntersector",CharacterClassOpen:"CharacterClassOpen",CharacterSet:"CharacterSet",Directive:"Directive",GroupClose:"GroupClose",GroupOpen:"GroupOpen",Subroutine:"Subroutine",Quantifier:"Quantifier",VariableLengthCharacterSet:"VariableLengthCharacterSet",EscapedNumber:"EscapedNumber"},k={any:"any",digit:"digit",dot:"dot",hex:"hex",non_newline:"non_newline",posix:"posix",property:"property",space:"space",word:"word"},H={flags:"flags",keep:"keep"},y={atomic:"atomic",capturing:"capturing",group:"group",lookahead:"lookahead",lookbehind:"lookbehind"},be=new Map([["a",7],["b",8],["e",27],["f",12],["n",10],["r",13],["t",9],["v",11]]),$e=g`\[\^?\]?`,Ne=`c.? | C(?:-.?)?|${g`[pP]\{(?:\^?[\x20\w]+\})?`}|${g`x[89A-Fa-f]\p{AHex}(?:\\x[89A-Fa-f]\p{AHex})*`}|${g`u(?:\p{AHex}{4})? | x\{[^\}]*\}? | x\p{AHex}{0,2}`}|${g`o\{[^\}]*\}?`}|${g`\d{1,3}`}`,ve=/[?*+][?+]?|\{(?:\d+(?:,\d*)?|,\d+)\}\??/,ee=new RegExp(g`
+var OnigurumaToES=(()=>{var ie=Object.defineProperty;var kt=Object.getOwnPropertyDescriptor;var yt=Object.getOwnPropertyNames;var bt=Object.prototype.hasOwnProperty;var xt=(e,t)=>{for(var n in t)ie(e,n,{get:t[n],enumerable:!0})},Ft=(e,t,n,a)=>{if(t&&typeof t=="object"||typeof t=="function")for(let s of yt(t))!bt.call(e,s)&&s!==n&&ie(e,s,{get:()=>t[s],enumerable:!(a=kt(t,s))||a.enumerable});return e};var It=e=>Ft(ie({},"__esModule",{value:!0}),e);var Vr={};xt(Vr,{EmulatedRegExp:()=>oe,toDetails:()=>_t,toOnigurumaAst:()=>Mr,toRegExp:()=>Br});var Y={ES2018:2018,ES2024:2024,ES2025:2025};function ee(e){if(e?.target!==void 0&&!Y[e.target])throw new Error(`Unexpected target "${e.target}"`);return{accuracy:"default",avoidSubclass:!1,flags:"",global:!1,hasIndices:!1,maxRecursionDepth:5,target:"ES2024",tmGrammar:!1,verbose:!1,...e}}var A=String.fromCodePoint,g=String.raw;function M(e,{enable:t,disable:n}){return{dotAll:!n?.dotAll&&!!(t?.dotAll||e.dotAll),ignoreCase:!n?.ignoreCase&&!!(t?.ignoreCase||e.ignoreCase)}}function B(e,t,n){return e.has(t)||e.set(t,n),e.get(t)}function L(e,t){return e.alternatives.length===1&&e.alternatives[0].elements.length===1&&(!t||t(e.alternatives[0].elements[0]))}function H(e,t){return Y[e]>=Y[t]}function F(e,t){if(!e)throw new Error(t??"Value expected");return e}var $t=new Set([A(304),A(305)]);function ue(e){if($t.has(e))return[e];let t=new Set,n=e.toLowerCase(),a=n.toUpperCase(),s=Pt.get(n),i=vt.get(n);return[...a].length===1&&t.add(a),t.add(n),s&&t.add(s),i&&t.add(i),[...t]}var le=new Set(["C","Other","Cc","Control","cntrl","Cf","Format","Cn","Unassigned","Co","Private_Use","Cs","Surrogate","L","Letter","LC","Cased_Letter","Ll","Lowercase_Letter","Lm","Modifier_Letter","Lo","Other_Letter","Lt","Titlecase_Letter","Lu","Uppercase_Letter","M","Mark","Combining_Mark","Mc","Spacing_Mark","Me","Enclosing_Mark","Mn","Nonspacing_Mark","N","Number","Nd","Decimal_Number","digit","Nl","Letter_Number","No","Other_Number","P","Punctuation","punct","Pc","Connector_Punctuation","Pd","Dash_Punctuation","Pe","Close_Punctuation","Pf","Final_Punctuation","Pi","Initial_Punctuation","Po","Other_Punctuation","Ps","Open_Punctuation","S","Symbol","Sc","Currency_Symbol","Sk","Modifier_Symbol","Sm","Math_Symbol","So","Other_Symbol","Z","Separator","Zl","Line_Separator","Zp","Paragraph_Separator","Zs","Space_Separator","ASCII","ASCII_Hex_Digit","AHex","Alphabetic","Alpha","Any","Assigned","Bidi_Control","Bidi_C","Bidi_Mirrored","Bidi_M","Case_Ignorable","CI","Cased","Changes_When_Casefolded","CWCF","Changes_When_Casemapped","CWCM","Changes_When_Lowercased","CWL","Changes_When_NFKC_Casefolded","CWKCF","Changes_When_Titlecased","CWT","Changes_When_Uppercased","CWU","Dash","Default_Ignorable_Code_Point","DI","Deprecated","Dep","Diacritic","Dia","Emoji","Emoji_Component","EComp","Emoji_Modifier","EMod","Emoji_Modifier_Base","EBase","Emoji_Presentation","EPres","Extended_Pictographic","ExtPict","Extender","Ext","Grapheme_Base","Gr_Base","Grapheme_Extend","Gr_Ext","Hex_Digit","Hex","IDS_Binary_Operator","IDSB","IDS_Trinary_Operator","IDST","ID_Continue","IDC","ID_Start","IDS","Ideographic","Ideo","Join_Control","Join_C","Logical_Order_Exception","LOE","Lowercase","Lower","Math","Noncharacter_Code_Point","NChar","Pattern_Syntax","Pat_Syn","Pattern_White_Space","Pat_WS","Quotation_Mark","QMark","Radical","Regional_Indicator","RI","Sentence_Terminal","STerm","Soft_Dotted","SD","Terminal_Punctuation","Term","Unified_Ideograph","UIdeo","Uppercase","Upper","Variation_Selector","VS","White_Space","space","XID_Continue","XIDC","XID_Start","XIDS"]),pe=new Map;for(let e of le)pe.set(Q(e),e);var Nt=new Set(["Basic_Emoji","Emoji_Keycap_Sequence","RGI_Emoji","RGI_Emoji_Flag_Sequence","RGI_Emoji_Modifier_Sequence","RGI_Emoji_Tag_Sequence","RGI_Emoji_ZWJ_Sequence"]),fe=new Map;for(let e of Nt)fe.set(Q(e),e);var xe=new Set("Dogr Dogra Gong Gunjala_Gondi Hanifi_Rohingya Maka Makasar Medefaidrin Medf Old_Sogdian Rohg Sogd Sogdian Sogo Extended_Pictographic Elym Elymaic Hmnp Nand Nandinagari Nyiakeng_Puachue_Hmong Wancho Wcho Chorasmian Chrs Diak Dives_Akuru Khitan_Small_Script Kits Yezi Yezidi EBase EComp EMod EPres ExtPict Cpmn Cypro_Minoan Old_Uyghur Ougr Tangsa Tnsa Toto Vith Vithkuqi Gara Garay Gukh Gurung_Khema Hrkt Katakana_Or_Hiragana Kawi Kirat_Rai Krai Nag_Mundari Nagm Ol_Onal Onao Sunu Sunuwar Todhri Todr Tulu_Tigalari Tutg Unknown Zzzz".split(" ")),vt=new Map([[A(223),A(7838)],[A(107),A(8490)],[A(229),A(8491)],[A(969),A(8486)]]),Pt=new Map([G(453),G(456),G(459),G(498),...ce(8072,8079),...ce(8088,8095),...ce(8104,8111),G(8124),G(8140),G(8188)]),te=new Map([["alnum",g`[\p{Alpha}\p{Nd}]`],["alpha",g`\p{Alpha}`],["ascii",g`\p{ASCII}`],["blank",g`[\p{Zs}\t]`],["cntrl",g`\p{cntrl}`],["digit",g`\p{Nd}`],["graph",g`[\P{space}&&\P{cntrl}&&\P{Cn}&&\P{Cs}]`],["lower",g`\p{Lower}`],["print",g`[[\P{space}&&\P{cntrl}&&\P{Cn}&&\P{Cs}]\p{Zs}]`],["punct",g`[\p{P}\p{S}]`],["space",g`\p{space}`],["upper",g`\p{Upper}`],["word",g`[\p{Alpha}\p{M}\p{Nd}\p{Pc}]`],["xdigit",g`\p{AHex}`]]),Fe=new Set(["alnum","blank","graph","print","word","xdigit"]);function Gt(e,t){let n=[];for(let a=e;a<=t;a++)n.push(a);return n}function Q(e){return e.replace(/[- _]+/g,"").toLowerCase()}function G(e){let t=A(e);return[t.toLowerCase(),t]}function ce(e,t){return Gt(e,t).map(n=>G(n))}var ge=new Set(["Lower","Lowercase","Upper","Uppercase","Ll","Lowercase_Letter","Lt","Titlecase_Letter","Lu","Uppercase_Letter"]);var h={Alternator:"Alternator",Assertion:"Assertion",Backreference:"Backreference",Character:"Character",CharacterClassClose:"CharacterClassClose",CharacterClassHyphen:"CharacterClassHyphen",CharacterClassIntersector:"CharacterClassIntersector",CharacterClassOpen:"CharacterClassOpen",CharacterSet:"CharacterSet",Directive:"Directive",GroupClose:"GroupClose",GroupOpen:"GroupOpen",Subroutine:"Subroutine",Quantifier:"Quantifier",VariableLengthCharacterSet:"VariableLengthCharacterSet",EscapedNumber:"EscapedNumber"},S={any:"any",digit:"digit",dot:"dot",hex:"hex",non_newline:"non_newline",posix:"posix",property:"property",space:"space",word:"word"},W={flags:"flags",keep:"keep"},k={atomic:"atomic",capturing:"capturing",group:"group",lookahead:"lookahead",lookbehind:"lookbehind"},Ie=new Map([["a",7],["b",8],["e",27],["f",12],["n",10],["r",13],["t",9],["v",11]]),ve=g`\[\^?\]?`,Pe=`c.? | C(?:-.?)?|${g`[pP]\{(?:\^?[\x20\w]+\})?`}|${g`x[89A-Fa-f]\p{AHex}(?:\\x[89A-Fa-f]\p{AHex})*`}|${g`u(?:\p{AHex}{4})? | x\{[^\}]*\}? | x\p{AHex}{0,2}`}|${g`o\{[^\}]*\}?`}|${g`\d{1,3}`}`,Ge=/[?*+][?+]?|\{(?:\d+(?:,\d*)?|,\d+)\}\??/,re=new RegExp(g`
   \\ (?:
-    ${Ne}
+    ${Pe}
     | [gk]<[^>]*>?
@@ -16,21 +16,21 @@ | [gk]'[^']*'?
   )?)?
-  | ${ve.source}
-  | ${$e}
+  | ${Ge.source}
+  | ${ve}
   | .
-`.replace(/\s+/g,""),"gsu"),ge=new RegExp(g`
+`.replace(/\s+/g,""),"gsu"),he=new RegExp(g`
   \\ (?:
-    ${Ne}
+    ${Pe}
     | .
   )
   | \[:[^:]*:\]
-  | ${$e}
+  | ${ve}
   | &&
   | .
-`.replace(/\s+/g,""),"gsu");function Q(e,t=""){if(typeof e!="string")throw new Error("String expected as pattern");if(!/^[imx]*$/.test(t))throw new Error(`Flags "${t}" unsupported in Oniguruma`);let n=[t.includes("x")],a={getCurrentModX:()=>n.at(-1),numOpenGroups:0,popModX(){n.pop()},pushModX(l){n.push(l)},replaceCurrentModX(l){n[n.length-1]=l}},s=[],i;for(ee.lastIndex=0;i=ee.exec(e);){let l=Nt(a,e,i[0],ee.lastIndex);l.tokens?s.push(...l.tokens):l.token&&s.push(l.token),l.lastIndex!==void 0&&(ee.lastIndex=l.lastIndex)}let o=[],c=0;s.forEach(l=>{l.type===d.GroupOpen&&(l.kind===y.capturing?(c++,l.number=c):l.raw==="("&&o.push(l))}),c||o.forEach((l,f)=>{l.kind=y.capturing,l.number=f+1});let u=c||o.length;return s=s.map(l=>l.type===d.EscapedNumber?Dt(l,u):l).flat(),{tokens:s,flags:{ignoreCase:t.includes("i"),dotAll:t.includes("m"),extended:t.includes("x")}}}function Nt(e,t,n,a){let[s,i,o]=n;if(s==="["){let c=vt(t,n,a);return{tokens:c.tokens,lastIndex:c.lastIndex}}if(s==="\\"){if("AbBGzZ".includes(i))return{token:E(d.Assertion,n,{kind:n})};if(/^\\g[<']/.test(n)){if(!/^\\g(?:<[^>]+>|'[^']+')$/.test(n))throw new Error(`Invalid group name "${n}"`);return{token:E(d.Subroutine,n)}}if(/^\\k[<']/.test(n)){if(!/^\\k(?:<[^>]+>|'[^']+')$/.test(n))throw new Error(`Invalid group name "${n}"`);return{token:E(d.Backreference,n)}}if(i==="K")return{token:E(d.Directive,n,{kind:H.keep})};if(i==="N")return{token:E(d.CharacterSet,n,{kind:k.non_newline})};if(i==="O")return{token:E(d.CharacterSet,n,{kind:k.any})};if("RX".includes(i))return{token:E(d.VariableLengthCharacterSet,n,{kind:n})};if("yY".includes(i))throw new Error(`Unsupported grapheme boundary "${n}"`);let c=Pe(n,{inCharClass:!1});return Array.isArray(c)?{tokens:c}:{token:c}}if(s==="("){if(o==="#"){if(t[a]!==")")throw new Error('Unclosed comment group "(?#"');return{lastIndex:a+1}}if("-imx".includes(o))return{token:Tt(n,e)};if(e.pushModX(e.getCurrentModX()),e.numOpenGroups++,n==="("||n==="(?:")return{token:E(d.GroupOpen,n,{kind:y.group})};if(n==="(?>")return{token:E(d.GroupOpen,n,{kind:y.atomic})};if(n==="(?="||n==="(?!"||n==="(?<="||n==="(?<!")return{token:E(d.GroupOpen,n,{kind:o==="<"?y.lookbehind:y.lookahead,negate:n.endsWith("!")})};if(o==="<"||o==="'")return{token:E(d.GroupOpen,n,{kind:y.capturing,name:n.slice(3,-1)})};throw o==="("?new Error(`Unsupported conditional "${n}"`):o==="~"?new Error(`Unsupported absence operator "${n}"`):n==="(?"?new Error("Invalid group"):new Error(`Unexpected group "${n}"`)}if(n===")"){if(e.popModX(),e.numOpenGroups--,e.numOpenGroups<0)throw new Error('Unmatched ")"');return{token:E(d.GroupClose,n)}}if(n==="#"&&e.getCurrentModX()){let c=t.indexOf(`
-`,a);return{lastIndex:c===-1?t.length:c}}if(/^\s$/.test(n)&&e.getCurrentModX()){let c=/\s+/y;return c.lastIndex=a,{lastIndex:c.exec(t)?c.lastIndex:a}}return n==="."?{token:E(d.CharacterSet,n,{kind:k.dot})}:n==="^"||n==="$"?{token:E(d.Assertion,n,{kind:n})}:n==="|"?{token:E(d.Alternator,n)}:ve.test(n)?{token:Lt(n)}:(Ge(n),{token:E(d.Character,n,{value:n.codePointAt(0)})})}function vt(e,t,n){Ie(t);let a=[E(d.CharacterClassOpen,t,{negate:t[1]==="^"})],s=1,i;for(ge.lastIndex=n;i=ge.exec(e);){let o=i[0];if(o[0]==="["&&o[1]!==":")Ie(o),s++,a.push(E(d.CharacterClassOpen,o,{negate:o[1]==="^"}));else if(o==="]"){if(s--,a.push(E(d.CharacterClassClose,o)),!s)break}else{let c=Pt(o);Array.isArray(c)?a.push(...c):a.push(c)}}return{tokens:a,lastIndex:ge.lastIndex||e.length}}function Pt(e){if(e[0]==="\\")return Pe(e,{inCharClass:!0});if(e[0]==="["){let t=/\[:(?<negate>\^?)(?<name>[a-z]+):\]/.exec(e);if(!t||!Y.get(t.groups.name))throw new Error(`Invalid POSIX class "${e}"`);return E(d.CharacterSet,e,{kind:k.posix,negate:!!t.groups.negate,value:t.groups.name})}return e==="-"?E(d.CharacterClassHyphen,e):e==="&&"?E(d.CharacterClassIntersector,e):(Ge(e),E(d.Character,e,{value:e.codePointAt(0)}))}function Pe(e,{inCharClass:t}){let n=e[1];if(n==="c"||n==="C")return Gt(e);if("dDhHsSwW".includes(n))return Rt(e);if(e.startsWith(g`\o{`))throw new Error(`Incomplete, invalid, or unsupported octal code point "${e}"`);if(/^\\[pP]\{/.test(e)){if(e.length===3)throw new Error("Incomplete or invalid Unicode property");return Ot(e)}if(/^\\x[89A-Fa-f]\p{AHex}/u.test(e))try{let a=e.split(/\\x/).slice(1).map(c=>parseInt(c,16)),s=new TextDecoder("utf-8",{ignoreBOM:!0,fatal:!0}).decode(new Uint8Array(a)),i=new TextEncoder;return[...s].map(c=>{let u=[...i.encode(c)].map(l=>`\\x${l.toString(16)}`).join("");return E(d.Character,u,{value:c.codePointAt(0)})})}catch{throw new Error(`Too short or invalid multibyte code "${e}"`)}if(n==="u"||n==="x")return 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Error("Use of recursion disabled");if(t.accuracy==="strict")throw new Error("Use of recursion requires non-strict accuracy due to depth limit");return e===0?`(?R=${n})`:g`\g<${e}&R=${n}>`}function ot(e,{firstOnly:t}={}){let n=e.min.value,a=e.max.value,s=[];if(n<65&&(a===65535||a>=131071)||n===65536&&a>=131071)return s;for(let i=n;i<=a;i++){let o=A(i);if(!we(o))continue;let c=ue(o).filter(u=>{let l=u.codePointAt(0);return l<n||l>a});if(c.length&&(s.push(...c),t))break}return s}function V(e,{isAfterBackref:t,inCharClass:n,useFlagV:a}){if(st.has(e))return st.get(e);if(e<32||e>126&&e<160||e>262143||t&&Tr(e))return e>255?g`\u{${e.toString(16).toUpperCase()}}`:g`\x${e.toString(16).toUpperCase().padStart(2,"0")}`;let s=n?a?_r:wr:Er,i=A(e);return(s.has(i)?"\\":"")+i}function Pr(e){let t=e.map(s=>s.codePointAt(0)).sort((s,i)=>s-i),n=[],a=null;for(let s=0;s<t.length;s++)t[s+1]===t[s]+1?a??=t[s]:a===null?n.push(t[s]):(n.push([a,t[s]]),a=null);return n}function Gr(e,t,n){if(e)return">";let a="";if(t&&n){let{enable:s,disable:i}=t;a=(s?.ignoreCase?"i":"")+(s?.dotAll?"s":"")+(i?"-":"")+(i?.ignoreCase?"i":"")+(i?.dotAll?"s":"")}return`${a}:`}function Rr({min:e,max:t,greedy:n,possessive:a}){let s;return!e&&t===1?s="?":!e&&t===1/0?s="*":e===1&&t===1/0?s="+":e===t?s=`{${e}}`:s=`{${e},${t===1/0?"":t}}`,s+(a?"+":n?"":"?")}function Tr(e){return e>47&&e<58}var b=Object.freeze({DEFAULT:"DEFAULT",CHAR_CLASS:"CHAR_CLASS"});function j(e,t,n,a){let s=new RegExp(String.raw`${t}|(?<$skip>\[\^?|\\?.)`,"gsu"),i=[!1],o=0,c="";for(let u of e.matchAll(s)){let{0:l,groups:{$skip:f}}=u;if(!f&&(!a||a===b.DEFAULT==!o)){n instanceof Function?c+=n(u,{context:o?b.CHAR_CLASS:b.DEFAULT,negated:i[i.length-1]}):c+=n;continue}l[0]==="["?(o++,i.push(l[1]==="^")):l==="]"&&o&&(o--,i.pop()),c+=l}return c}function _e(e,t,n,a){j(e,t,n,a)}function Lr(e,t,n=0,a){if(!new RegExp(t,"su").test(e))return null;let s=new RegExp(`${t}|(?<$skip>\\\\?.)`,"gsu");s.lastIndex=n;let i=0,o;for(;o=s.exec(e);){let{0:c,groups:{$skip:u}}=o;if(!u&&(!a||a===b.DEFAULT==!i))return o;c==="["?i++:c==="]"&&i&&i--,s.lastIndex==o.index&&s.lastIndex++}return null}function ae(e,t,n){return!!Lr(e,t,0,n)}function it(e,t){let n=/\\?./gsu;n.lastIndex=t;let a=e.length,s=0,i=1,o;for(;o=n.exec(e);){let[c]=o;if(c==="[")s++;else if(s)c==="]"&&s--;else if(c==="(")i++;else if(c===")"&&(i--,!i)){a=o.index;break}}return e.slice(t,a)}var ct={DEFAULT:"DEFAULT",CHAR_CLASS:"CHAR_CLASS",ENCLOSED_P:"ENCLOSED_P",ENCLOSED_U:"ENCLOSED_U",GROUP_NAME:"GROUP_NAME",INTERVAL_QUANTIFIER:"INTERVAL_QUANTIFIER",INVALID_INCOMPLETE_TOKEN:"INVALID_INCOMPLETE_TOKEN"},Ae={DEFAULT:"DEFAULT",ENCLOSED_P:"ENCLOSED_P",ENCLOSED_Q:"ENCLOSED_Q",ENCLOSED_U:"ENCLOSED_U",INVALID_INCOMPLETE_TOKEN:"INVALID_INCOMPLETE_TOKEN",RANGE:"RANGE"},Ln=new Set([ct.ENCLOSED_P,ct.ENCLOSED_U]),On=new Set([Ae.ENCLOSED_P,Ae.ENCLOSED_Q,Ae.ENCLOSED_U]),Un=(()=>{try{new RegExp("(?i:)")}catch{return!1}return!0})(),Dn=(()=>{try{new RegExp("","v")}catch{return!1}return!0})(),ut="$E$";var Or=String.raw`\(\?<(?![=!])(?<captureName>[^>]+)>`,Mn=String.raw`\((?!\?)(?!(?<=\(\?\()DEFINE\))|${Or}`,lt=String.raw`\(\?(?:[:=!>A-Za-z\-]|<[=!]|\(DEFINE\))`;var Ur=["Basic_Emoji","Emoji_Keycap_Sequence","RGI_Emoji_Modifier_Sequence","RGI_Emoji_Flag_Sequence","RGI_Emoji_Tag_Sequence","RGI_Emoji_ZWJ_Sequence","RGI_Emoji"].join("|"),Bn=new RegExp(String.raw`
 \\(?: c[A-Za-z]
-  | p\{(?<pStrProp>${Lr})\}
+  | p\{(?<pStrProp>${Ur})\}
   | [pP]\{[^\}]+\}
@@ -45,3 +45,3 @@ | (?<qStrProp>q)
 | .
-`.replace(/\s+/g,""),"gsu");var Un=new RegExp(String.raw`
+`.replace(/\s+/g,""),"gsu");var Vn=new RegExp(String.raw`
 (?<groupN>\(\?<(?![=!])|\\[gk]<)
@@ -59,3 +59,3 @@ | (?<enclosedPU>\\[pPu]\{)
 | \\?.
-`.replace(/\s+/g,""),"gsu");function ct(e,t,n,a){return e.slice(0,t)+a+e.slice(t+n.length)}var ut=new RegExp(String.raw`(?<noncapturingStart>${it})|(?<capturingStart>\((?:\?<[^>]+>)?)|\\?.`,"gsu");function lt(e,t){if(!/\(\?>/.test(e))return e;let n="(?>",a=`(?:(?=(${t?.useEmulationGroups?ot:""}`,s=[0],i=0,o=0,c=NaN,u;do{u=!1;let l=0,f=0,h=!1,C;for(ut.lastIndex=Number.isNaN(c)?0:c+a.length;C=ut.exec(e);){let{0:m,index:A,groups:{capturingStart:S,noncapturingStart:F}}=C;if(m==="[")l++;else if(l)m==="]"&&l--;else if(m===n&&!h)c=A,h=!0;else if(h&&F)f++;else if(S)h?f++:(i++,s.push(i+o));else if(m===")"&&h){if(!f){o++,e=`${e.slice(0,c)}${a}${e.slice(c+n.length,A)}))<$$${o+i}>)${e.slice(A+1)}`,u=!0;break}f--}}}while(u);return e=V(e,String.raw`\\(?<backrefNum>[1-9]\d*)|<\$\$(?<wrappedBackrefNum>\d+)>`,({0:l,groups:{backrefNum:f,wrappedBackrefNum:h}})=>{if(f){let C=+f;if(C>s.length-1)throw new Error(`Backref "${l}" greater than number of captures`);return`\\${s[C]}`}return`\\${h}`},b.DEFAULT),e}var pt=String.raw`(?:[?*+]|\{\d+(?:,\d*)?\})`,_e=new RegExp(String.raw`
+`.replace(/\s+/g,""),"gsu");function pt(e,t,n,a){return e.slice(0,t)+a+e.slice(t+n.length)}var ft=new RegExp(String.raw`(?<noncapturingStart>${lt})|(?<capturingStart>\((?:\?<[^>]+>)?)|\\?.`,"gsu");function gt(e,t){if(!/\(\?>/.test(e))return e;let n="(?>",a=`(?:(?=(${t?.useEmulationGroups?ut:""}`,s=[0],i=0,o=0,c=NaN,u;do{u=!1;let l=0,f=0,d=!1,C;for(ft.lastIndex=Number.isNaN(c)?0:c+a.length;C=ft.exec(e);){let{0:m,index:_,groups:{capturingStart:T,noncapturingStart:D}}=C;if(m==="[")l++;else if(l)m==="]"&&l--;else if(m===n&&!d)c=_,d=!0;else if(d&&D)f++;else if(T)d?f++:(i++,s.push(i+o));else if(m===")"&&d){if(!f){o++,e=`${e.slice(0,c)}${a}${e.slice(c+n.length,_)}))<$$${o+i}>)${e.slice(_+1)}`,u=!0;break}f--}}}while(u);return e=j(e,String.raw`\\(?<backrefNum>[1-9]\d*)|<\$\$(?<wrappedBackrefNum>\d+)>`,({0:l,groups:{backrefNum:f,wrappedBackrefNum:d}})=>{if(f){let C=+f;if(C>s.length-1)throw new Error(`Backref "${l}" greater than number of captures`);return`\\${s[C]}`}return`\\${d}`},b.DEFAULT),e}var ht=String.raw`(?:[?*+]|\{\d+(?:,\d*)?\})`,Se=new RegExp(String.raw`
 \\(?: \d+
@@ -73,5 +73,5 @@ | c[A-Za-z]
   ))?
-| (?<qBase>${pt})(?<qMod>[?+]?)(?<invalidQ>[?*+\{]?)
+| (?<qBase>${ht})(?<qMod>[?+]?)(?<invalidQ>[?*+\{]?)
 | \\?.
-`.replace(/\s+/g,""),"gsu");function ft(e){if(!new RegExp(`${pt}\\+`).test(e))return e;let t=[],n=null,a=null,s="",i=0,o;for(_e.lastIndex=0;o=_e.exec(e);){let{0:c,index:u,groups:{qBase:l,qMod:f,invalidQ:h}}=o;if(c==="[")i||(a=u),i++;else if(c==="]")i?i--:a=null;else if(!i)if(f==="+"&&s&&!s.startsWith("(")){if(h)throw new Error(`Invalid quantifier "${c}"`);let C=-1;if(/^\{\d+\}$/.test(l))e=ct(e,u+l.length,f,"");else{if(s===")"||s==="]"){let m=s===")"?n:a;if(m===null)throw new Error(`Invalid unmatched "${s}"`);e=`${e.slice(0,m)}(?>${e.slice(m,u)}${l})${e.slice(u+c.length)}`}else e=`${e.slice(0,u-s.length)}(?>${s}${l})${e.slice(u+c.length)}`;C+=4}_e.lastIndex+=C}else c[0]==="("?t.push(u):c===")"&&(n=t.length?t.pop():null);s=c}return e}var Rr=String.raw`\\g<(?<gRNameOrNum>[^>&]+)&R=(?<gRDepth>[^>]+)>`,ke=String.raw`\(\?R=(?<rDepth>[^\)]+)\)|${Rr}`,Se=String.raw`\(\?<(?![=!])(?<captureName>[^>]+)>`,D=new RegExp(String.raw`${Se}|${ke}|\\?.`,"gsu");function mt(e){if(!new RegExp(ke,"su").test(e))return e;if(se(e,String.raw`\\[1-9]`,b.DEFAULT))throw new Error("Numbered backrefs cannot be used with recursion; use named backref");if(se(e,String.raw`\(\?\(DEFINE\)`,b.DEFAULT))throw new Error("DEFINE groups cannot be used with recursion");let t=new Map,n=[],a=0,s=0,i;for(D.lastIndex=0;i=D.exec(e);){let{0:o,groups:{captureName:c,rDepth:u,gRNameOrNum:l,gRDepth:f}}=i;if(o==="[")a++;else if(a)o==="]"&&a--;else if(u){gt(u);let h=e.slice(0,i.index),C=e.slice(D.lastIndex);return dt(C),ht(h,C,+u,!1)}else if(l){if(gt(f),dt(e.slice(D.lastIndex)),!n.some(S=>S.name===l||S.num===+l))throw new Error(`Recursion via \\g<${l}&R=${f}> must be used within the referenced group`);let h=t.get(l),C=st(e,h),m=e.slice(h,i.index),A=C.slice(m.length+o.length);return e.slice(0,h)+ht(m,A,+f,!0)+e.slice(h+C.length)}else if(c)s++,t.set(String(s),D.lastIndex),t.set(c,D.lastIndex),n.push({num:s,name:c});else if(o.startsWith("(")){let h=o==="(";h&&(s++,t.set(String(s),D.lastIndex)),n.push(h?{num:s}:{})}else o===")"&&n.pop()}return e}function gt(e){let t=`Max depth must be integer between 2 and 100; used ${e}`;if(!/^[1-9]\d*$/.test(e))throw new Error(t);if(e=+e,e<2||e>100)throw new Error(t)}function dt(e){if(se(e,ke,b.DEFAULT))throw new Error("Recursion can only be used once per regex")}function ht(e,t,n,a){let s=new Set;a&&we(e+t,Se,({groups:{captureName:o}})=>{s.add(o)},b.DEFAULT);let i=n-1;return`${e}${Ct(`(?:${e}`,i,a?s:null)}(?:)${Ct(`${t})`,i,a?s:null,"backward")}${t}`}function Ct(e,t,n,a="forward"){let i=c=>a==="backward"?t-c+2-1:c+2,o="";for(let c=0;c<t;c++){let u=i(c);o+=V(e,String.raw`${Se}|\\k<(?<backref>[^>]+)>`,({0:l,groups:{captureName:f,backref:h}})=>{if(h&&n&&!n.has(h))return l;let C=`_$${u}`;return f?`(?<${f}${C}>`:`\\k<${h}${C}>`},b.DEFAULT)}return o}function Et(e,t){let n=J(t),a=Q(e,n.flags),s=z(a,{skipBackrefValidation:n.tmGrammar,verbose:n.verbose}),i=Qe(s,{accuracy:n.accuracy,avoidSubclass:n.avoidSubclass,bestEffortTarget:n.target}),o=rt(i,n),c=lt(ft(mt(o.pattern))),u;i._strategy&&(c=c.replace(/\(\?:\\p{sc=<<}\|(.*?)\|\\p{sc=>>}\)/s,(f,h)=>(u=h,"")));let l={pattern:c,flags:`${n.hasIndices?"d":""}${n.global?"g":""}${o.flags}${o.options.disable.v?"u":"v"}`};return i._strategy&&(l.strategy={...i._strategy},u&&(l.strategy.subpattern=u)),l}function Or(e,t){return z(Q(e,t?.flags))}function Ur(e,t){let n=Et(e,t);return n.strategy?new ae(n.pattern,n.flags,n.strategy):new RegExp(n.pattern,n.flags)}var ae=class e extends RegExp{#e;constructor(t,n,a){super(t,n),a?this.#e=a:t instanceof e&&(this.#e=t.#e)}exec(t){let n=this.global||this.sticky,a=this.lastIndex,s=RegExp.prototype.exec;if(this.#e.name==="line_or_search_start"&&n&&this.lastIndex){this.lastIndex=0;let o=s.call(this,t.slice(a));return o&&(o.input=t,o.index+=a,this.lastIndex+=a),o}let i=n?this:new RegExp(this,`g${this.flags}`);if(this.#e.name==="not_search_start"){let o=s.call(this,t);return o?.index===a&&(i.lastIndex=o.index+1,o=s.call(i,t)),o}if(this.#e.name==="after_search_start_or_subpattern"){let o=s.call(this,t);if(!o||o.index===a)return o;let c=new RegExp(`(?:${this.#e.subpattern})$`);for(;o;){if(c.exec(t.slice(0,o.index)))return o;i.lastIndex=o.index+1,o=s.call(i,t)}return o}return s.call(this,t)}};return yt(Dr);})();
+`.replace(/\s+/g,""),"gsu");function dt(e){if(!new RegExp(`${ht}\\+`).test(e))return e;let t=[],n=null,a=null,s="",i=0,o;for(Se.lastIndex=0;o=Se.exec(e);){let{0:c,index:u,groups:{qBase:l,qMod:f,invalidQ:d}}=o;if(c==="[")i||(a=u),i++;else if(c==="]")i?i--:a=null;else if(!i)if(f==="+"&&s&&!s.startsWith("(")){if(d)throw new Error(`Invalid quantifier "${c}"`);let C=-1;if(/^\{\d+\}$/.test(l))e=pt(e,u+l.length,f,"");else{if(s===")"||s==="]"){let m=s===")"?n:a;if(m===null)throw new Error(`Invalid unmatched "${s}"`);e=`${e.slice(0,m)}(?>${e.slice(m,u)}${l})${e.slice(u+c.length)}`}else e=`${e.slice(0,u-s.length)}(?>${s}${l})${e.slice(u+c.length)}`;C+=4}Se.lastIndex+=C}else c[0]==="("?t.push(u):c===")"&&(n=t.length?t.pop():null);s=c}return e}var Dr=String.raw`\\g<(?<gRNameOrNum>[^>&]+)&R=(?<gRDepth>[^>]+)>`,ye=String.raw`\(\?R=(?<rDepth>[^\)]+)\)|${Dr}`,be=String.raw`\(\?<(?![=!])(?<captureName>[^>]+)>`,U=new RegExp(String.raw`${be}|${ye}|\(\?|\\?.`,"gsu"),ke="Cannot use multiple overlapping recursions";function wt(e){if(!new RegExp(ye,"su").test(e))return e;if(ae(e,String.raw`\\[1-9]`,b.DEFAULT))throw new Error("Numbered backrefs cannot be used with recursion");if(ae(e,String.raw`\(\?\(DEFINE\)`,b.DEFAULT))throw new Error("DEFINE groups cannot be used with recursion");let t=new Map,n=[],a=!1,s=0,i=0,o;for(U.lastIndex=0;o=U.exec(e);){let{0:c,groups:{captureName:u,rDepth:l,gRNameOrNum:f,gRDepth:d}}=o;if(c==="[")s++;else if(s)c==="]"&&s--;else if(l){if(Ct(l),a)throw new Error(ke);let C=e.slice(0,o.index),m=e.slice(U.lastIndex);if(ae(m,ye,b.DEFAULT))throw new Error(ke);return mt(C,m,+l,!1)}else if(f){Ct(d);let C=!1;for(let K of n)if(K.name===f||K.num===+f){if(C=!0,K.hasRecursedWithin)throw new Error(ke);break}if(!C)throw new Error(`Recursive \\g cannot be used outside the referenced group "\\g<${f}&R=${d}>"`);let m=t.get(f),_=it(e,m),T=e.slice(m,o.index),D=_.slice(T.length+c.length),x=mt(T,D,+d,!0),At=e.slice(0,m),St=e.slice(m+_.length);e=`${At}${x}${St}`,U.lastIndex+=x.length-c.length-T.length-D.length,n.forEach(K=>K.hasRecursedWithin=!0),a=!0}else if(u)i++,t.set(String(i),U.lastIndex),t.set(u,U.lastIndex),n.push({num:i,name:u});else if(c.startsWith("(")){let C=c==="(";C&&(i++,t.set(String(i),U.lastIndex)),n.push(C?{num:i}:{})}else c===")"&&n.pop()}return e}function Ct(e){let t=`Max depth must be integer between 2 and 100; used ${e}`;if(!/^[1-9]\d*$/.test(e))throw new Error(t);if(e=+e,e<2||e>100)throw new Error(t)}function mt(e,t,n,a){let s=new Set;a&&_e(e+t,be,({groups:{captureName:o}})=>{s.add(o)},b.DEFAULT);let i=n-1;return`${e}${Et(`(?:${e}`,i,a?s:null)}(?:)${Et(`${t})`,i,a?s:null,"backward")}${t}`}function Et(e,t,n,a="forward"){let i=c=>a==="backward"?t-c+2-1:c+2,o="";for(let c=0;c<t;c++){let u=i(c);o+=j(e,String.raw`${be}|\\k<(?<backref>[^>]+)>`,({0:l,groups:{captureName:f,backref:d}})=>{if(d&&n&&!n.has(d))return l;let C=`_$${u}`;return f?`(?<${f}${C}>`:`\\k<${d}${C}>`},b.DEFAULT)}return o}function _t(e,t){let n=ee(t),a=q(e,n.flags),s=Z(a,{skipBackrefValidation:n.tmGrammar,verbose:n.verbose}),i=qe(s,{accuracy:n.accuracy,avoidSubclass:n.avoidSubclass,bestEffortTarget:n.target}),o=at(i,n),c=gt(dt(wt(o.pattern))),u;i._strategy&&(c=c.replace(/\(\?:\\p{sc=<<}\|(.*?)\|\\p{sc=>>}\)/s,(f,d)=>(u=d,"")));let l={pattern:c,flags:`${n.hasIndices?"d":""}${n.global?"g":""}${o.flags}${o.options.disable.v?"u":"v"}`};return i._strategy&&(l.strategy={...i._strategy},u&&(l.strategy.subpattern=u)),l}function Mr(e,t){return Z(q(e,t?.flags))}function Br(e,t){let n=_t(e,t);return n.strategy?new oe(n.pattern,n.flags,n.strategy):new RegExp(n.pattern,n.flags)}var oe=class e extends RegExp{#e;constructor(t,n,a){super(t,n),a?this.#e=a:t instanceof e&&(this.#e=t.#e)}exec(t){let n=this.global||this.sticky,a=this.lastIndex,s=RegExp.prototype.exec;if(this.#e.name==="line_or_search_start"&&n&&this.lastIndex){this.lastIndex=0;let i=s.call(this,t.slice(a));return i&&(i.input=t,i.index+=a,this.lastIndex+=a),i}if(this.#e.name==="not_search_start"){let i=s.call(this,t);if(i?.index===a){let o=n?this:new RegExp(this.source,`g${this.flags}`);o.lastIndex=i.index+1,i=s.call(o,t)}return i}if(this.#e.name==="after_search_start_or_subpattern"){let i=s.call(this,t);if(!i||i.index===a)return i;let o=new RegExp(`(?<=${this.#e.subpattern})${this.source}`,this.flags);return o.lastIndex=a,i=s.call(o,t),this.lastIndex=o.lastIndex,i}return s.call(this,t)}};return It(Vr);})();
 //# sourceMappingURL=index.min.js.map

package.json

 {
   "name": "oniguruma-to-es",
-  "version": "0.2.0",
+  "version": "0.3.0",
   "description": "Convert Oniguruma patterns to native JavaScript RegExp",
@@ -47,3 +47,3 @@ "author": "Steven Levithan",
     "regex": "^4.4.0",
-    "regex-recursion": "^4.1.0"
+    "regex-recursion": "^4.2.1"
   },
@@ -50,0 +50,0 @@ "devDependencies": {

README.md

@@ -220,5 +220,5 @@ # Oniguruma-To-ES
 
-*Default: `6`.*
+*Default: `5`.*
 
-Specifies the recursion depth limit. Supported values are integers `2` to `100` and `null`. If `null`, any use of recursion results in an error.
+Specifies the recursion depth limit. Supported values are integers `2`–`100` and `null`. If `null`, any use of recursion results in an error.
 
@@ -230,5 +230,3 @@ Since recursion isn't infinite-depth like in Oniguruma, use of recursion also results in an error if using strict `accuracy`.
 
-Using a high limit has a (usually tiny) impact on transpilation and regex performance. Generally, this is only a problem if the regex has an existing issue with runaway backtracking that recursion exacerbates.
-
-Higher limits have no effect on regexes that don't use recursion, so you should feel free to increase this if helpful.
+Using a high limit has a small impact on performance. Generally, this is only a problem if the regex has an existing issue with runaway backtracking that recursion exacerbates. Higher limits have no effect on regexes that don't use recursion, so you should feel free to increase this if helpful.
 </details>
@@ -959,3 +957,3 @@
 5. It's not an error for *numbered* backreferences to come before their referenced group in Oniguruma, but an error is the best path for Oniguruma-To-ES because (1) most placements are mistakes and can never match (based on the Oniguruma behavior for backreferences to nonparticipating groups), (2) erroring matches the behavior of named backreferences, and (3) the edge cases where they're matchable rely on rules for backreference resetting within quantified groups that are different in JavaScript and aren't emulatable. Note that it's not a backreference in the first place if using `\10` or higher and not as many capturing groups are defined to the left (it's an octal or identity escape).
-6. The recursion depth limit is specified by option `maxRecursionDepth`. Some forms of recursion (multiple recursions in the same pattern, and recursion with backreferences) aren't yet supported. Patterns that would error in Oniguruma due to triggering infinite recursion might find a match in Oniguruma-To-ES since recursion is bounded (future versions will detect this and error at transpilation time).
+6. The recursion depth limit is specified by option `maxRecursionDepth`. Use of backreferences with recursion isn't yet supported. Patterns that would error in Oniguruma due to triggering infinite recursion might find a match in Oniguruma-To-ES since recursion is bounded (future versions will detect this and error at transpilation time).
 
@@ -962,0 +960,0 @@ ## ㊗️ Unicode / mixed case-sensitivity

types/transform.d.ts

@@ -30,3 +30,3 @@ export type RegexAst = {
 to representing native ES2025 `RegExp` but with some added features (atomic groups, possessive
-quantifiers, recursion). The AST doesn't use some of Regex+'s extended features like flag `x` or
+quantifiers, recursion). The AST doesn't use some of Regex+'s extended features like flag x or
 subroutines because they follow PCRE behavior and work somewhat differently than in Oniguruma. The
@@ -33,0 +33,0 @@ AST represents what's needed to precisely reproduce Oniguruma behavior using Regex+.

types/utils.d.ts

@@ -10,2 +10,3 @@ export const cp: any;
 export function getOrCreate(map: any, key: any, defaultValue: any): any;
+export function hasOnlyChild(node: any, kidFn: any): any;
 /**
@@ -12,0 +13,0 @@ @param {keyof Target} target

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• Updatedregex-recursion@^4.2.1