swifties
sqlparse
swifties | sqlparse | |
---|---|---|
5 | 7 | |
11 | 3,588 | |
- | - | |
0.0 | 8.3 | |
over 2 years ago | 13 days ago | |
Swift | Python | |
- | BSD 3-clause "New" or "Revised" License |
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swifties
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Let's write a compiler, part 5: A code generator
Depends on the complexity of your queries, but if you have a narrow subset that you're interested in, implementing a recursive descent parser for just those parts of the syntax that fits your problem like a glove could be a better solution.
https://github.com/codr7/swifties
- Show HN: Swifties – a custom language construction kit in Swift
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Let's write a compiler, part 3: A parser
What few seem to realize is that it's perfectly possible to abstract out some of the work and create an extensible foundation for manual parsers.
Since it's all regular code, you can use the full power of the host language to deal with the problem.
https://github.com/codr7/swifties/blob/main/Sources/Swifties...
sqlparse
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Show HN: Databasediagram.com – Private, Text to Entity-Relationship Diagram Tool
Suggest checking out the sqlparse library for a way to do the different flavours without needing to address each case directly: https://github.com/andialbrecht/sqlparse
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Data Load Diagram
Gotcha, since we haven't actually written all of this yet I don't have any useful code snippets to share but we've discussed tackling the problem internally using something like sqlparse. You'd need to identify the relevant sql chunks, parse them for table dependency information and then create the relevant entities in whichever data lineage tool you were using.
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This Week In Python
sqlparse – A non-validating SQL parser module for Python
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Open Source SQL Parsers
Regular expressions is a popular approach to extract information from SQL statements. However, regular expressions quickly become too complex to handle common features like WITH, sub-queries, windows clauses, aliases and quotes. sqlparse is a popular python package that uses regular expressions to parse SQL.
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Automated SQL formatting checks
This one is not bad: https://github.com/andialbrecht/sqlparse.
- Let's write a compiler, part 5: A code generator
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BigQuery Lineage
We used this repo for this: https://github.com/andialbrecht/sqlparse. I may have miscommunicated. We didn't write the parser from scratch, we created a way for the parser to detect downstream and upstream dependencies of the resource.
What are some alternatives?
sqlite-parser - JavaScript implentation of SQLite 3 query parser
zetasql - ZetaSQL - Analyzer Framework for SQL
langjam
pyparsing - Python library for creating PEG parsers [Moved to: https://github.com/pyparsing/pyparsing]
pl0c - Self-hosting PL/0 to C compiler to teach basic compiler construction from a practical, hands-on perspective.
Lark - Lark is a parsing toolkit for Python, built with a focus on ergonomics, performance and modularity.
rhizome - A JIT for Ruby, implemented in pure Ruby
PLY - Python Lex-Yacc
sqlfluff - A modular SQL linter and auto-formatter with support for multiple dialects and templated code.
vitess-sqlparser - simply SQL Parser for Go ( powered by vitess and TiDB )
Pygments