Mercurial > repos > shellac > sam_consensus_v3
annotate env/lib/python3.9/site-packages/pyparsing-2.4.7.dist-info/METADATA @ 0:4f3585e2f14b draft default tip
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author | shellac |
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date | Mon, 22 Mar 2021 18:12:50 +0000 |
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1 Metadata-Version: 2.1 |
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2 Name: pyparsing |
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3 Version: 2.4.7 |
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4 Summary: Python parsing module |
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5 Home-page: https://github.com/pyparsing/pyparsing/ |
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6 Author: Paul McGuire |
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7 Author-email: ptmcg@users.sourceforge.net |
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8 License: MIT License |
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9 Download-URL: https://pypi.org/project/pyparsing/ |
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10 Platform: UNKNOWN |
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11 Classifier: Development Status :: 5 - Production/Stable |
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12 Classifier: Intended Audience :: Developers |
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13 Classifier: Intended Audience :: Information Technology |
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14 Classifier: License :: OSI Approved :: MIT License |
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15 Classifier: Operating System :: OS Independent |
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16 Classifier: Programming Language :: Python |
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17 Classifier: Programming Language :: Python :: 2 |
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18 Classifier: Programming Language :: Python :: 2.6 |
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19 Classifier: Programming Language :: Python :: 2.7 |
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20 Classifier: Programming Language :: Python :: 3 |
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21 Classifier: Programming Language :: Python :: 3.3 |
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22 Classifier: Programming Language :: Python :: 3.4 |
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23 Classifier: Programming Language :: Python :: 3.5 |
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24 Classifier: Programming Language :: Python :: 3.6 |
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25 Classifier: Programming Language :: Python :: 3.7 |
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26 Classifier: Programming Language :: Python :: 3.8 |
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27 Requires-Python: >=2.6, !=3.0.*, !=3.1.*, !=3.2.* |
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28 |
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29 PyParsing -- A Python Parsing Module |
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30 ==================================== |
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31 |
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32 |Build Status| |
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33 |
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34 Introduction |
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35 ============ |
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36 |
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37 The pyparsing module is an alternative approach to creating and |
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38 executing simple grammars, vs. the traditional lex/yacc approach, or the |
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39 use of regular expressions. The pyparsing module provides a library of |
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40 classes that client code uses to construct the grammar directly in |
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41 Python code. |
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42 |
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43 *[Since first writing this description of pyparsing in late 2003, this |
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44 technique for developing parsers has become more widespread, under the |
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45 name Parsing Expression Grammars - PEGs. See more information on PEGs at* |
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46 https://en.wikipedia.org/wiki/Parsing_expression_grammar *.]* |
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47 |
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48 Here is a program to parse ``"Hello, World!"`` (or any greeting of the form |
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49 ``"salutation, addressee!"``): |
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50 |
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51 .. code:: python |
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52 |
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53 from pyparsing import Word, alphas |
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54 greet = Word(alphas) + "," + Word(alphas) + "!" |
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55 hello = "Hello, World!" |
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56 print(hello, "->", greet.parseString(hello)) |
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57 |
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58 The program outputs the following:: |
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59 |
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60 Hello, World! -> ['Hello', ',', 'World', '!'] |
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61 |
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62 The Python representation of the grammar is quite readable, owing to the |
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63 self-explanatory class names, and the use of '+', '|' and '^' operator |
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64 definitions. |
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65 |
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66 The parsed results returned from ``parseString()`` can be accessed as a |
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67 nested list, a dictionary, or an object with named attributes. |
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68 |
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69 The pyparsing module handles some of the problems that are typically |
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70 vexing when writing text parsers: |
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71 |
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72 - extra or missing whitespace (the above program will also handle ``"Hello,World!"``, ``"Hello , World !"``, etc.) |
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73 - quoted strings |
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74 - embedded comments |
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75 |
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76 The examples directory includes a simple SQL parser, simple CORBA IDL |
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77 parser, a config file parser, a chemical formula parser, and a four- |
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78 function algebraic notation parser, among many others. |
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79 |
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80 Documentation |
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81 ============= |
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82 |
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83 There are many examples in the online docstrings of the classes |
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84 and methods in pyparsing. You can find them compiled into online docs |
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85 at https://pyparsing-docs.readthedocs.io/en/latest/. Additional |
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86 documentation resources and project info are listed in the online |
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87 GitHub wiki, at https://github.com/pyparsing/pyparsing/wiki. An |
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88 entire directory of examples is at |
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89 https://github.com/pyparsing/pyparsing/tree/master/examples. |
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90 |
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91 License |
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92 ======= |
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93 |
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94 MIT License. See header of pyparsing.py |
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95 |
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96 History |
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97 ======= |
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98 |
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99 See CHANGES file. |
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100 |
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101 .. |Build Status| image:: https://travis-ci.org/pyparsing/pyparsing.svg?branch=master |
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102 :target: https://travis-ci.org/pyparsing/pyparsing |
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103 |
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104 |