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Operator_precedence_parsing Alternatives
Similar projects and alternatives to operator_precedence_parsing
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InfluxDB
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Hence, a higher number means a better operator_precedence_parsing alternative or higher similarity.
operator_precedence_parsing reviews and mentions
Posts with mentions or reviews of operator_precedence_parsing.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2022-12-07.
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What are the advantages of pratt parsing over recursive descent parsing?
Pratt parsing can be considered as a refactoring of the expression part of a recursive descent parser where you have extracted the precedence and associativity into tables (that's not how it has been designed, but I've made the refactoring excercise in https://github.com/bourguet/operator_precedence_parsing where you can find a bunch of other expression parsers parsing the same language and written in a similar style for easier comparison)
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What's the easiest way to add features to an existing programming language?
If you want a selection of expression parsing algorithms, I've a collection here showing how to parse C-like expressions with them.
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Calculations with brackets
I've a GitHub repository with Python implementations of those showing how to parse C expressions (included the ?: operator) at https://github.com/bourguet/operator_precedence_parsing (it was started when I was wondering how Pratt related to the algorithms more often presented in the literature, my opinion is that you can consider it as a refactoring of a more classical RD parser, loosing some power but table driven and with a probable performance advantage).
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Crafting Interpreter : parsePrecedence
You may be interested in https://github.com/bourguet/operator_precedence_parsing there is a series of files were I refactor a recursive descent parser into a Pratt one. The crucial step is IIRC between rd_to_pratt 3 and 4. The only difference in that step is in a single function.
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How does Pratt Parsing work?
I have some time ago written a comparison between several expression parsers: https://github.com/bourguet/operator_precedence_parsing my implementation of Pratt is pratt.py in that repository.
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Better operator precedence
Sometimes ago, I've collected a set of expression parsing algorithms (shunting yard, Pratt, ...) to compare them and I included a small discussion of the way to implement the precedence function. I tend to like having two tables -- that's allow to represent distfix structures and to get left/right associativity without needing the full matrix -- see https://github.com/bourguet/operator_precedence_parsing.
- Turing Award to Aho and Ullman for work on compilers
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Modifying the Shunting-yard algorithm for logical, string-based & mathematical operations all-in-one?
A few years ago, I wrote several expression parsers in Python (shunting yard, expression precedence, Pratt) aiming to compare them and to provide implementations of algorithms as described in historical papers. It's on GitHub https://github.com/bourguet/operator_precedence_parsing. That may be interesting for you.
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Stats
Basic operator_precedence_parsing repo stats
8
54
0.0
about 2 years ago
bourguet/operator_precedence_parsing is an open source project licensed under BSD 2-clause "Simplified" License which is an OSI approved license.
The primary programming language of operator_precedence_parsing is Python.
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