flex
htmlq
| flex | htmlq | |
|---|---|---|
| 9 | 27 | |
| 3,436 | 6,935 | |
| - | - | |
| 8.4 | 2.3 | |
| 2 days ago | 7 months ago | |
| C | Rust | |
| GNU General Public License v3.0 or later | MIT License |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
flex
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How to provide input file for Flex++?
I am using Flex++, which is Flex for C++ and I am having trouble setting the input file. Flex++ uses the FlexLexer class provided in FlexLexer.h to create the lexer object(https://github.com/westes/flex/blob/master/src/FlexLexer.h). In my main function I have
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Do Regular Expressions only evaluate one line at a time?
Further applications of DFA and NFA: lex or flex, yacc or bison, and POE :-)
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Cool C projects
How about writing a programming language using Flex and Bison? There are lots of good tutorials and examples out there.
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Parser and Lexer bike-shedding
Some lexer generators (notably Flex) take input from a file handle by default. While you can always read a file into a string before passing it to the generated lexer, this is not seen as "the best" since you have to read in all the data into memory, which can be a lot.
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A Good Tool for Resuming Parsers?
Ages ago, I loved writing domain-specific toy languages, and almost always used flex to generate lexers and GNU bison to generate the parser. I've begun a new toy project and I don't think those two will cut it this time, so I'm looking for other tools that integrate well with C++.
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Please no
I don't understand :c don't lexers like Flex work off of regex rules? Isn't this the correct first step to parse it?
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A work in progress C compiler from scratch
I wrote a C compiler using flex [1] and bison [2]. The glue between them is a bit hacky.
At some point ANTLR [3] looked promising, but these days I'd probably write a lexer and recursive descent parser by hand, then generate LLVM IR.
[1] https://github.com/westes/flex
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Dealing with lex and yacc is DIFFICULT so little information is available about them!
github.com/westes/flex/releases
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Qual’è il commento più assurdo che avete mai trovato nel sorgente di un software?
Un commento in flex, uno storico software, tanto per mostrare che anche i migliori fanno le cose alla buona.
htmlq
- Htmlq: Like Jq, but for HTML
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What monitoring tool do you use or recommend?
jq is pretty amazing. If you are comfortable with its jquery-like CSS selector syntax, then I should also mention a couple similar cli utilities that apply it to HTML: htmlp and pup.
- Yq is a portable yq: command-line YAML, JSON, XML, CSV and properties processor
- mgdm/htmlq: Like jq, but for HTML.
- hq: like jq, but for HTML
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SQLite-HTML: A SQLite extension for querying, manipulating, and creating HTML
Hey, author here, happy to answer questions! A few other recent posts/tools that you may be interested in:
- sqlite-lines discussion from a few days ago: https://news.ycombinator.com/item?id=32288165
- htmlq, Rust CLI for (like jq but for html): https://github.com/mgdm/htmlq
- The Go library that sqlite-html uses for making runtime-loadable SQLite extensions https://github.com/riyaz-ali/sqlite
- sqlean, a ton of other helpful SQLite extensions (in C): https://github.com/nalgeon/sqlean
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Any cool cURL/wget tools that you use?
thanks. that reminds me their's a jq for html: https://github.com/mgdm/htmlq
- A CLI to avoid remembering HTTP status codes
- A list of new(ish) command line tools – Julia Evans
- htmlq - like jq, but for HTML
What are some alternatives?
LKI - LKI's dotfiles.
pup - Parsing HTML at the command line
cpp-peglib - A single file C++ header-only PEG (Parsing Expression Grammars) library
ht - Friendly and fast tool for sending HTTP requests
imp - Imp is a statically typed and compiled scripting language with the goal of increasing programmer confidence.
yq - Command-line YAML, XML, TOML processor - jq wrapper for YAML/XML/TOML documents
ocean - Programming language that compiles into a x86 ELF executable.
tools - all-in collection of productivity scripts, CLI tools, utility libraries, fuse filesystems, and also some stuff
Apollo-11 - Original Apollo 11 Guidance Computer (AGC) source code for the command and lunar modules.
hq - lightweight command line HTML processor using CSS and XPath selectors
owl - A parser generator for visibly pushdown languages.
cascadia - Go cascadia package command line CSS selector