EBNFParser | Convenient parser generator for Python | Parser library
kandi X-RAY | EBNFParser Summary
kandi X-RAY | EBNFParser Summary
Convenient parser generator for Python(check out https://github.com/thautwarm/RBNF for an advanced version).
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Top functions reviewed by kandi - BETA
- Compile the given source code file
- Define a combined parser definition
- Parse source code
- Return the AST for the given equals operator
- Compile the given list of statements
- Match a sequence of tokens
- Roll back history
- Clone the file
- Match the given tokens
- Optimizes cases
- Analyze cases
- Remove grammar from groups
- Compile the grammar
- Append an element to the buffer
- Returns the name of the parser
- Returns a function that matches a string
- Return a function for debugging
- Create a function that matches a regular expression
- Creates a new trace
- Write string to file
- Returns a function that returns a function that matches a character
- Create from source code
EBNFParser Key Features
EBNFParser Examples and Code Snippets
Community Discussions
Trending Discussions on EBNFParser
QUESTION
I've just started writing a simple parser in C# that you can find here: https://github.com/JohnnyErnest/LexerParser/blob/main/Program.cs#L1078
The main feature being that I wanted to be able to write a JSON configuration for some grammar that I want to analyze, load up the configuration at runtime and evaluate some string input via the lexer/parser and generate a tree with information about each node for things like syntax highlighting and extracting variables from sections of a parsed text, rather than using a third party tool like a yacc/bison clone to create code to be compiled from a grammar, for some languages like SQL/CSS/HTML.
The simple question is, what are some other good methods of detecting recursion problems early from malformed input before a StackOverflowException? The details are below.
I don't have grammars fully built out yet for various languages, just simple tests of some basic grammar so far, but I ran across a problem when trying to implement EBNF like: https://en.wikipedia.org/wiki/Extended_Backus%E2%80%93Naur_form when having to deal with how the right-hand side of grammar statements are evaluated like so:
...ANSWER
Answered 2021-Jan-13 at 07:40Answer is explained better here: https://stackoverflow.com/a/20179940/5556724
The version of EBNF on Wikipedia is written like so:
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