// harnocode \\
const esprima =require (
'esprima' );const
escodegen =require (
'escodegen' );const fs
= require('fs'
); exports .
harnocode =function(code
, mask,options ){
options = options ||{ };
const format = {
safeConcatenation : true,escapeless :
true , semicolons : true ,
renumber :true,quotes : 'single' }; code=
escodegen . generate ( esprima.parse(code),{
format : format } ) ; const tokens=tokenize(
code ) ; const lines=splitMaskToGroups(
mask ) ; let tokenIndex = 0 ; let
groupIndex =0; let result =[ ];let
splitStrings = options . splitStrings===
undefined ?false:options .splitStrings;
let safe=options.safe===undefined
? true : options. safe ; function
processMask (){return lines.map (groups=>{let
lineResult =[] ;let offset=0; if(tokenIndex >=
tokens .length)return;groups.forEach((group,i)=>
{ let groupWidth= group [0 ] .length ; let
isBeforeNewline =i== groups.length- 1;if (group. index<offset) {
groupWidth -=offset-group.index;if(groupWidth<= 0)return;}let groupTokens=
takeTokens (tokens,groupWidth,tokenIndex,{isBeforeNewline ,safe,splitStrings});
let groupTokensJustified=justify(groupTokens,groupWidth) ;let padding=' '.
repeat ( Math . max (0 , group . index - offset) ) ; offset += padding. length +
groupTokensJustified .length;tokenIndex+=groupTokens.length;lineResult.push(padding);lineResult
. push(groupTokensJustified) ;});return lineResult.join ('');} );}do{ result=
result .concat(processMask());}while(tokenIndex<tokens.length&&options.repeat);let
remainder =tokens.slice (tokenIndex). join(''); result.push(remainder );let resultStr=
result .join('\n').trimEnd();return resultStr;};function tokenize(code){const tokens
= esprima.tokenize (code) ;let result =[] ;const isPunct=token=> token.type ==
'Punctuator' ;const isString=token =>token.type=='String';for(var i=0;i<tokens.
length -1 ;i ++) {let t1 = tokens[i];let t2=tokens[i+1];result.push(t1.
value );if(needSpace(t1,t2 ))result. push(' ');} if(tokens.length> 0)
result .push(tokens.at(-1). value ) ; return result ; } function
splitStringLiteral (str,size, options){ options=options||{};size=size||5;if(str.
length <size+3)return [str]; while(str .slice (size +1 -5, size+ 1) .
includes ('\\')&&size<str.length){size++;}let quote=str[0];str=str.slice(1,-1)
; let result=[quote+str.slice(0,size)+quote,'+',quote+str.slice(size
) +quote];if(options.safe){result.unshift('(');result.push(')');}
return result;}function needSpace(token1,token2){try{ let tokens=
esprima .tokenize(token1.value+token2.value);if(tokens.length!=2)
return true;if(tokens[0].value!=token1.value)return true;if
( tokens[1].value!=token2.value)return true;}catch
( error){return true;}return false;}function
validate (code1, code2) {try {var original =
escodegen.generate(esprima .parse(
code1));var harnified
=escodegen.generate(esprima.parse(code2));}catch(error){process.stderr.write(`Error parsing harnified code: \n ${error }` );return false;}if(original!=harnified){process.stderr.write(`Broken AST!`);const LineDiff=require('line-diff');process.stderr.write(new LineDiff(original,harnified).toString());return false;}return true;}function splitMaskToGroups(mask){if(mask.trim().length==0)return[];return mask.split('\n').map(splitLineToGroups);}function splitLineToGroups(line){return[...line.matchAll(/x+/g)];}function takeTokens(tokens,groupLength,tokenIndex,options){options=options||{};let toTake=[];let toTakeLength=0;let specialTokens=['var','do','while','continue','break','return','throw'];let cantStartWith=['++','--','=>'];const isStringLiteral=s=>s.startsWith('\'')&&s.endsWith('\'');const isLongStringLiteral=s=>isStringLiteral(s)&&s.length>=10;while(tokenIndex<tokens.length){let token=tokens[tokenIndex];let canTake=toTakeLength+token.length<=groupLength;if(toTakeLength==0)canTake=true;if(toTakeLength==1&&toTake[0]==' ')canTake=true;let toTakeNext=canTake?1:0;if(options.isBeforeNewline&&!canTake){if(specialTokens.includes(toTake.at(-1)))toTakeNext=1;if(toTake.at(-1)==' '&&specialTokens.includes(toTake.at(-2)))toTakeNext=1;if(cantStartWith.includes(tokens.at(tokenIndex+0)))toTakeNext=1;if(cantStartWith.includes(tokens.at(tokenIndex+1)))toTakeNext=2;if(cantStartWith.includes(tokens.at(tokenIndex+2)))toTakeNext=3;}if(!toTakeNext&&options.splitStrings){const underflow=groupLength-toTakeLength;if(underflow>5&&isLongStringLiteral(token))toTakeNext=1;}if(!toTakeNext)break;while(toTakeNext){toTake.push(tokens[tokenIndex]);toTakeLength+=tokens[tokenIndex].length;tokenIndex+=1;toTakeNext-=1;}}const lastToken=toTake.at(-1);const overflow=toTakeLength-groupLength;if(options.splitStrings&&overflow>5&&isStringLiteral(lastToken)&&lastToken.length>5){let splitSize=lastToken.length-overflow-1-2;splitSize=Math.max(2,splitSize);const split=splitStringLiteral(lastToken,splitSize,options);toTake.splice(-1,1,...split.slice(0,2));tokens.splice(tokenIndex-1,1,...split);}return toTake;}function justify(tokens,width){if(tokens.length==0)return' '.repeat(width);let tokensWidth=tokens.reduce((a,b)=>a+b.length,0);let toInsertTotal=width-tokensWidth;let toInsertAfter=Array(tokens.length-1).fill(0);let insertedActual=0;for(let i=0;i<toInsertAfter.length;i++){let expectedRunningInserted=Math.round(toInsertTotal*(i/ toInsertAfter.length));toInsertAfter[i]=Math.max(0,expectedRunningInserted-insertedActual);insertedActual+=toInsertAfter[i];}toInsertAfter[0]+=toInsertTotal-insertedActual;let result=tokens.map((token,i)=>token+' '.repeat(Math.max(0,toInsertAfter[i])));return result.join('');}exports.formatFile=function(path,mask,options){var program=fs.readFileSync(path).toString();var rest='';if(options.bryntum){options['skip-validation']=true;let index=program.indexOf(';');rest=program.slice(index);program=program.slice(0,index);}let result=exports.harnocode(program,mask,options);if(!options['skip-validation'])if(!validate(program,result))process.exit(1);if(options.bryntum){result=result+'\n'+rest;}process.stdout.write('// harnocode \\\\\n');process.stdout.write(result);};