gram_grep
parsertl-playground
| gram_grep | parsertl-playground | |
|---|---|---|
| 4 | 1 | |
| 11 | 11 | |
| - | - | |
| 7.1 | 9.5 | |
| 12 days ago | 7 days ago | |
| C++ | GAP | |
| Boost Software License 1.0 | Boost Software License 1.0 |
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gram_grep
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AST-grep(sg) is a CLI tool for code structural search, lint, and rewriting
There is also gram_grep[0]"Search text using a grammar, lexer, or straight regex. Chain searches for greater refinement."
See also parsertl-playground[1] for online edit/test grammars.
[0]https://github.com/BenHanson/gram_grep
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Show HN: Yacc/Lex editor/tester online
I'm building an online yacc/lex (LALR(1)) grammar editor/tester to help develop/debug/document grammars, the main repository is here https://github.com/mingodad/parsertl-playground and the online playground with several non trivial examples is here https://mingodad.github.io/parsertl-playground/playground/ .
Select a grammar/example from "Examples" select box and then click "Parse" to see a parser tree for the source in "Input source" editor.
It's based on https://github.com/BenHanson/gram_grep and https://github.com/BenHanson/lexertl14 .
Any feedback is welcome !
The grammars available so far (with varying state of correctness):
- Ada parser
- Question about lexer and parser generators in Rust
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MSVC Backend Updates in Visual Studio 2019 version 16.10 Preview 2 | C++ Team Blog
Thanks for the tip, but I fear storing the result on the stack will be too much to ask for for big lexers (see https://github.com/BenHanson/gram_grep/blob/c64f8829661f11b38a55b42b37f5051c5eabfaa6/main.cpp#L2301 for example).
parsertl-playground
-
Show HN: Yacc/Lex editor/tester online
I'm building an online yacc/lex (LALR(1)) grammar editor/tester to help develop/debug/document grammars, the main repository is here https://github.com/mingodad/parsertl-playground and the online playground with several non trivial examples is here https://mingodad.github.io/parsertl-playground/playground/ .
Select a grammar/example from "Examples" select box and then click "Parse" to see a parser tree for the source in "Input source" editor.
It's based on https://github.com/BenHanson/gram_grep and https://github.com/BenHanson/lexertl14 .
Any feedback is welcome !
The grammars available so far (with varying state of correctness):
- Ada parser
What are some alternatives?
frozen - a header-only, constexpr alternative to gperf for C++14 users
JFlex - The fast scanner generator for Java™ with full Unicode support
tracy - Frame profiler
grmtools - Rust grammar tool libraries and binaries
gramatika - A minimal toolkit for writing parsers with Rust
winflexbison - Main winflexbision repository
parsertl14 - C++14 version of parsertl
cparse - cparse is an LR(1) and LALR(1) parser generator
chumsky - Write expressive, high-performance parsers with ease.
ExprTK - C++ Mathematical Expression Parsing And Evaluation Library https://www.partow.net/programming/exprtk/index.html
semgrep - Lightweight static analysis for many languages. Find bug variants with patterns that look like source code.
lexertl14 - C++14 version of lexertl