pyparsing
parsita
| pyparsing | parsita | |
|---|---|---|
| 13 | - | |
| 2,109 | 94 | |
| 1.4% | - | |
| 8.3 | 6.7 | |
| 2 days ago | 2 months ago | |
| Python | Python | |
| MIT License | 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.
pyparsing
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Pyparsing 3.1.0 released
After over a year since the last release of pyparsing, I've bundled up all the bug-fixes and changes, and they are now released as pyparsing 3.1.0. Visit this link for the details.
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Need help developing an interpreter
Look into "parser combinators" for building an interpreter. There's a few ones out there, but PyParsing is one I've seen around that looks pretty nifty.
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About a month ago I posted about PRegEx, an open-source project which I had started that you can use to build RegEx patterns programmatically, which the subreddit seem to like. This prompted me to keep working on it, and one month later, PRegEx v2.0.0 is out!
I havent found a way to specify an exact character match in pyparsing - https://github.com/pyparsing/pyparsing/discussions/443
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Python toolkits
STDOUT: Lark or pyparsing
- TatSu takes grammars in variation of EBNF, outputs memoizing Python PEG parsers
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Parser Combinators in Haskell
Since it is not mentioned in the article: Python users may also want to check out pyparsing [0]. It is slightly different from Parsec/FParsec (for instance, it ignores all whitespace by default), but I think it is a really good project.
[0]: https://github.com/pyparsing/pyparsing/
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Pyparsing 3.0.x - off to a rocky start, but I think 3.0.6 looks fairly solid
Here is the page of all the new changes and features in pyparsing 3.0.
- luna is a Domain specific language that translates to regex. It's an attempt to make regex more readable.
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Recommended way to read and parse a couple thousand small files
Your pyparsing parser might benefit from a tune-up. This page has some performance tips: https://github.com/pyparsing/pyparsing/wiki/Performance-Tips.
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Script for extracting info from a SQL File
If your SQL has fairly complex structure, you will need a full blown SQL parser. If your statements are mostly simple select, you can get pretty close with Pyparsing, here is an example.
parsita
We haven't tracked posts mentioning parsita yet.
Tracking mentions began in Dec 2020.
What are some alternatives?
parser - String parser combinators
funcparserlib - Recursive descent parsing library for Python based on functional combinators
iregex - A way to write regex with objects instead of strings.
pydantic - Data validation using Python type hints
attoparsec - A fast Haskell library for parsing ByteStrings
reparsec - Small parsec-like parser combinators library with semi-automatic error recovery
sly - Sly Lex Yacc
awesome-python - An opinionated list of awesome Python frameworks, libraries, software and resources.
Lark - Lark is a parsing toolkit for Python, built with a focus on ergonomics, performance and modularity.
pyparsing - Python library for creating PEG parsers [Moved to: https://github.com/pyparsing/pyparsing]
assert-combinators - Functional assertion combinators.
ReadableRegex.jl - regexes for people who don't really want to learn or read regexes