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1 line
2.0 KiB
JavaScript
1 line
2.0 KiB
JavaScript
import{m as e}from"./src.OgxTg4hg.js";import{f as t,t as n}from"./mermaid-parser.core.N9eEiD5y.js";import{n as r}from"./chunk-Y2CYZVJY.DsF7k-Jl.js";import"./chunk-WYO6CB5R.Bq018eTN.js";import"./chunk-VAUOI2AC.B8koBSma.js";import{n as i,r as a,t as o}from"./chunk-MOJQB5TN.S5IX9-r8.js";import{t as s}from"./chunk-JWPE2WC7.A3RzWITa.js";var c=t().RailroadEbnf.parser.LangiumParser,l=r(e=>{let t=e.alternatives.map(u);return t.length===1?t[0]:{type:`choice`,alternatives:t}},`transformChoice`),u=r(e=>{let t=e.elements.map(p);return t.length===1?t[0]:{type:`sequence`,elements:t}},`transformSequence`),d=r(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=r((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=r(e=>e.postfixes.reduce((e,t)=>f(e,t),d(e.base)),`transformTerm`),m=r(e=>({name:e.name,definition:l(e.definition)}),`transformRule`),h=r(e=>{s(e,o),e.title&&o.setTitle(e.title),e.rules.map(e=>o.addRule(m(e)))},`populateDb`),g={parser:{parse:r(t=>{o.clear(),e.debug(`[EBNF Parser] Starting Langium parse`);let r=c.parse(t);if(r.lexerErrors.length>0||r.parserErrors.length>0)throw new n(r);let i=r.value;e.debug(`[EBNF Parser] Parsed rules:`,i.rules.length),h(i),e.debug(`[EBNF Parser] Parse complete`)},`parse`),parser:{yy:o}},db:o,renderer:a,styles:i};export{g as diagram}; |