import{n as e}from"./chunk-Y2CYZVJY-DsF7k-Jl.js";import{t}from"./chunk-X3CZISLH-DX9Il8sT.js";import"./chunk-WYO6CB5R-BrkmBSXu.js";import"./chunk-VAUOI2AC-BWKY1JwH.js";import{n,r,t as i}from"./chunk-MOJQB5TN-DJqvBbWO.js";import{t as a}from"./chunk-JWPE2WC7-DVXcaiue.js";import{n as o}from"./chunk-U6XO7XAA-CR0BSRFR.js";import{t as s}from"./mermaid-parser.core-h2Myc9xB.js";var c=o().RailroadEbnf.parser.LangiumParser,l=e(e=>{let t=e.alternatives.map(u);return t.length===1?t[0]:{type:`choice`,alternatives:t}},`transformChoice`),u=e(e=>{let t=e.elements.map(p);return t.length===1?t[0]:{type:`sequence`,elements:t}},`transformSequence`),d=e(e=>{switch(e.$type){case`EbnfTerminal`:return{type:`terminal`,value:e.value};case`EbnfNonTerminal`:return{type:`nonterminal`,name:e.name};case`EbnfSpecial`:return{type:`special`,text:e.text};case`EbnfGroup`:return l(e.element);case`EbnfOptional`:return{type:`optional`,element:l(e.element)};case`EbnfRepetition`:return{type:`repetition`,element:l(e.element),min:0,max:1/0};default:throw Error(`Unsupported EBNF primary node: ${e.$type}`)}},`transformPrimary`),f=e((e,t)=>{switch(t.$type){case`EbnfOptionalPostfix`:return{type:`optional`,element:e};case`EbnfZeroOrMorePostfix`:return{type:`repetition`,element:e,min:0,max:1/0};case`EbnfOneOrMorePostfix`:return{type:`repetition`,element:e,min:1,max:1/0};case`EbnfExceptionPostfix`:return{type:`sequence`,elements:[e,{type:`terminal`,value:`-`},d(t.except)]};default:throw Error(`Unsupported EBNF postfix node: ${t.$type}`)}},`transformPostfix`),p=e(e=>e.postfixes.reduce((e,t)=>f(e,t),d(e.base)),`transformTerm`),m=e(e=>({name:e.name,definition:l(e.definition)}),`transformRule`),h=e(e=>{a(e,i),e.title&&i.setTitle(e.title),e.rules.map(e=>i.addRule(m(e)))},`populateDb`),g={parser:{parse:e(e=>{i.clear(),t.debug(`[EBNF Parser] Starting Langium parse`);let n=c.parse(e);if(n.lexerErrors.length>0||n.parserErrors.length>0)throw new s(n);let r=n.value;t.debug(`[EBNF Parser] Parsed rules:`,r.rules.length),h(r),t.debug(`[EBNF Parser] Parse complete`)},`parse`),parser:{yy:i}},db:i,renderer:r,styles:n};export{g as diagram};