An Earley Algorithm Parser toolkit.
This package uses Jay Earley’s algorithm for parsing context free grammars, and comes with some generic Abstract Syntax Tree routines. There is also a prototype scanner which does its job by combining Python regular expressions.
(SPARK stands for Scanning, Parsing, and Rewriting Kit. It is a poor name since it conflicts with a more popular package of the same name. In the future we will rename this.)
The original version of this was written by John Aycock for his Ph.d thesis and was described in his 1998 paper: “Compiling Little Languages in Python” at the 7th International Python Conference. The current incarnation of this code is maintained (or not) by Rocky Bernstein.
Note: Earley algorithm parsers are almost linear when given an LR grammar. These are grammars which are left-recursive.
Installation
This uses setup.py, so it follows the standard Python routine:
python setup.py install # may need sudo # or if you have pyenv: python setup.py develop
Example
The github example directory has a worked-out examples; Package uncompyle6 uses this and contains a much larger example.
See Also
http://pages.cpsc.ucalgary.ca/~aycock/spark/ (Old and not very well maintained)
1 maintainer
Download files
Download the file for your platform. If you're not sure which to choose, learn more about installing packages.
Source Distribution
Built Distributions
Filter files by name, interpreter, ABI, and platform.
If you're not sure about the file name format, learn more about wheel file names.
Copy a direct link to the current filters
File details
Details for the file spark_parser-1.8.8.tar.gz.
File metadata
- Download URL: spark_parser-1.8.8.tar.gz
- Upload date:
- Size: 118.3 kB
- Tags: Source
- Uploaded using Trusted Publishing? No
- Uploaded via:
twine/1.11.0 pkginfo/1.4.2 requests/2.18.4 setuptools/28.8.0 requests-toolbelt/0.8.0 tqdm/4.23.4 CPython/3.4.8
File hashes
| Algorithm | Hash digest | |
|---|---|---|
| SHA256 |
73aa385250d26823f78314c6ec30e5e30d07bdeeef61f823e0e4db0689897657
|
|
| MD5 |
107e00b5a9bde189dcca4bf2573322d1
|
|
| BLAKE2b-256 |
1245d4bf83b054bb64e7b99ecf2ab995aa791a11f341f39eb01e16e17b550b5b
|
File details
Details for the file spark_parser-1.8.8-py3-none-any.whl.
File metadata
- Download URL: spark_parser-1.8.8-py3-none-any.whl
- Upload date:
- Size: 18.0 kB
- Tags: Python 3
- Uploaded using Trusted Publishing? No
- Uploaded via:
twine/1.11.0 pkginfo/1.4.2 requests/2.18.4 setuptools/28.8.0 requests-toolbelt/0.8.0 tqdm/4.23.4 CPython/3.4.8
File hashes
| Algorithm | Hash digest | |
|---|---|---|
| SHA256 |
825afdebcb8488523c7a307c6dee5b36c20b640ba229a777d3c48153c488472f
|
|
| MD5 |
f16c5ca91256fc50475bf7e2f6808ffb
|
|
| BLAKE2b-256 |
4665d25c77d8ab2ae791bb42fb6692d115ff0546938d2d0d2518b5f194dbb90b
|
File details
Details for the file spark_parser-1.8.8-py2-none-any.whl.
File metadata
- Download URL: spark_parser-1.8.8-py2-none-any.whl
- Upload date:
- Size: 18.0 kB
- Tags: Python 2
- Uploaded using Trusted Publishing? No
- Uploaded via:
twine/1.11.0 pkginfo/1.4.2 requests/2.18.4 setuptools/28.8.0 requests-toolbelt/0.8.0 tqdm/4.23.4 CPython/3.4.8
File hashes
| Algorithm | Hash digest | |
|---|---|---|
| SHA256 |
7ae7d5d688c013d5174e6c6e82418ba7b14f5b871c2427954c649647b5a03a9c
|
|
| MD5 |
b6a4e47de252983e705297284d3e59fd
|
|
| BLAKE2b-256 |
00310cb9617ff5e6e5eb3e4afbaee923357d37aa21edcc9c20ce8f79c4bd2893
|
