Julia syntax in antlr4?

xiaodai · April 28, 2021, 3:37am

In the above repo there is a bunch of antlr4 syntax definitions are languages but no Julia folder.

Is anyone aware of an antlr4 syntax file for Julia?

Roger-luo · April 28, 2021, 4:15am

I don’t think Julia has a syntax standard like C++ etc. the Julia syntax uses its official implementation as “standard”, but I remember @thautwarm wrote a BNF for Julia syntax before.

thautwarm · April 29, 2021, 12:51am

Sorry, Roger… I think you’d mean the authors of Intellij-Julia…
I cannot write a BNF for Julia. It’s too hard

thautwarm · April 29, 2021, 12:52am

github.com

JuliaEditorSupport/julia-intellij/blob/master/grammar/julia-grammar.bnf

//noinspection BnfResolveForFile
{
  generate=[java="8" names="long" visitor-value="R"]
  // ref: https://github.com/JuliaLang/julia/blob/master/src/julia-parser.scm
  // https://raw.githubusercontent.com/JuliaLang/julia/master/src/julia-parser.scm
  parserClass='org.ice1000.julia.lang.JuliaParser'
  parserUtilClass='org.ice1000.julia.lang.parsing.JuliaGeneratedParserUtilBase'
  extends='com.intellij.extapi.psi.ASTWrapperPsiElement'
  psiClassPrefix='Julia'
  psiImplClassSuffix='Impl'
  psiPackage='org.ice1000.julia.lang.psi'
  psiImplPackage='org.ice1000.julia.lang.psi.impl'

  extends('.*Op|.*Expr|.*Lit|.*ymbol|.*lock')=expr
  extends('.*Indexing')=exprOrEnd

  tokenTypeClass='org.ice1000.julia.lang.JuliaTokenType'
  elementTypeHolderClass='org.ice1000.julia.lang.psi.JuliaTypes'
  elementTypeClass='org.ice1000.julia.lang.JuliaElementType'
  elementTypeFactory='org.ice1000.julia.lang.JuliaElementType.createType'

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AlexanderChen · May 11, 2021, 2:03pm

I am new to the parser subject. Currently looking into ANTLR for a project I want to do in Julia. But no Julia support. Have people used ANTLR/Python and pycall to get it back into the julia-sphere?