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    "info": {
        "author": "Atsuo Ishimoto",
        "author_email": "atsuoishimoto@gmail.com",
        "bugtrack_url": null,
        "classifiers": [
            "Development Status :: 5 - Production/Stable",
            "License :: OSI Approved :: MIT License",
            "Programming Language :: Python :: 3",
            "Topic :: Text Processing :: Filters",
            "Topic :: Utilities"
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        "description": "\ntse - Python Stream Scripting\n=============================\n\nTse processes text input stream with Python expressions. Like AWK, tse command line option is a series of pair of condition and action:\n\n    tse -s COND1 ACTION1 -s COND2 ACTION2 ACTION3\n\nFor example, to find lines starts with ``abc`` ::\n\n    $ tse -s '^abc' 'P(L)' -- *.*\n\nto find line contains URL ::\n\n    $ tse -s 'http://\\\\S+' 'P(S0)'  -s 'mailto://\\\\S+' 'print S0'  \\\n        -- *.*\n\nto convert upper case ::\n\n    $ cat FILENAME | tse -p '.*' -a 'P(L.upper())'\n\nAlso, tse can be used to execute Python one-liner.\n\nTo get current directory ::\n\n    $ tse -x 'P(os.getcwd())'\n\nTo celebrate the Friday ::\n\n    $ tse -ms datetime -x 'if 4==date.today().weekday():' \\\n                          '{{P(\"Thank God It\\'s Friday\")}}'\n\n\n\\ \n\nCommand line options\n-----------------------\n\n\n::\n\n  usage: tse [-h] [--statement PATTERN [ACTION ...]]\n             [--execute EXECUTE [EXECUTE ...]] [--begin BEGIN [BEGIN ...]]\n             [--end END [END ...]] [--ignore-case]\n             [--field-separator FIELD_SEPARATOR] [--inplace EXTENSION]\n             [--input-encoding INPUT_ENCODING]\n             [--output-encoding OUTPUT_ENCODING] [--script-file SCRIPT_FILE]\n             [--module MODULE] [--module-star MODULE_STAR] [--version]\n             [FILE [FILE ...]]\n\n  Text Stream Editor in Python\n\n  positional arguments:\n    FILE                  With no FILE, or when FILE is -, read standard input.\n\n  optional arguments:\n    -h, --help            show this help message and exit\n    --statement PATTERN [ACTION ...], -s PATTERN [ACTION ...]\n                          a pair of pattern and action(s).\n    --execute EXECUTE [EXECUTE ...], -x EXECUTE [EXECUTE ...]\n                          execute script without reading files.\n    --begin BEGIN [BEGIN ...], -b BEGIN [BEGIN ...]\n                          action invoked before input files have been read.\n    --end END [END ...], -e END [END ...]\n                          action invoked after input files have been exhausted.\n    --ignore-case, -i     ignore case distinctions.\n    --field-separator FIELD_SEPARATOR, -F FIELD_SEPARATOR\n                          regular expression used to separate fields.\n    --inplace EXTENSION   edit files in-place.\n    --input-encoding INPUT_ENCODING, -ie INPUT_ENCODING\n                          encoding of input stream.\n    --output-encoding OUTPUT_ENCODING, -oe OUTPUT_ENCODING\n                          encoding of output stream.\n    --script-file SCRIPT_FILE, -f SCRIPT_FILE\n                          specifies an alternative script file. the default\n                          script file is ~/.tserc.\n    --module MODULE, -m MODULE\n                          modules to be imported.\n    --module-star MODULE_STAR, -ms MODULE_STAR\n                          modules to be imported in form of \"from modname import\n                          *\".\n    --version             show program's version number and exit\n\n\nPatterns and Actions\n-----------------------\n\nThe ``--statement`` option accepts a pattern and actions.\n\nPattern is a regular expression to search line. Action is executed when corresponding pattern is found in the line. This command prints lines contains \"abc\" in the FILENAME.\n\n::\n\n    $ cat FILENAME | tse -s \"abc\" \"print(L)\"\n\n\nIf a pattern is matched, following pattern/action pairs are not execused. This command prints lines not starts with `#` in the FILENAME.\n\n::\n\n    $ cat FILENAME | tse -s \"'#\" \"pass\" \".*\" \"P(L)\"\n\n\nEmpty pattern means ``.\\*``, and empty action means ``print(L)``. So, ``tse -s '' ''`` is equivalent to ``tse -s '.*' 'P(L)'``\n\nAction arguments in a ``--statement`` option are joined with ``\\n``. So, you can write\n\n::\n\n    tse -s '.*' 'for c in L:' '    print(c)'\n\n\n\n``{{`` and ``}}`` in the action are converted to newline + indent/dedent. For example, \n\n::\n\n    'if L1:{{for c in L2:{{print(c)}}else:{{print(L3)}}}}else:{{print(L4)}}'\n\nis converted to \n\n::\n\n    if L1:\n        for c in L2:\n            print(c)\n        else:\n            print(L3)\n    else:\n        print(L4)\n\n``{{`` and ``}}`` in the string literal and comments are ignored.\n\n\n--execute option\n-----------------------\n\nPython script specified with ``--execute`` option is execused without reading input file. This can be used as Python one-liner executer.\n\n::\n\n   # sample to post message to Discord chat\n   $ tse -ms requests -x 'P(post(\"https://discordapp.com/api/webhooks/XXX/YYY\",'\\\n                       'json=dict(username=\"username\", content=\"test\")))'\n\n\n--begin and --end option\n------------------------------------\n\nPython script specified with ``--begin`` option is execused before input streams are read. Python script specified with ``--end`` option is execused after input streams are exhausted.\n\n\n::\n    # sample to count all letters of the files in the directory\n    $ tse --begin 'n=0' --end 'P(n)' -s '' 'n+=len(L)' -- *.*\n\n\nVariables\n---------\n\nFollowing variables are can be used within action statement.\n\n:FILENAME: The name of file currently reading.\n\n:F: The `pathlib.Path <https://docs.python.org/3/library/pathlib.html#concrete-paths>`__ object of the file currently reading.\n\n:LINENO: Line numberof the current line.\n\n:L: Current line.\n\n:L0: Current line.\n\n:L1, L2: Fields of the current line separeted by whitespace.\n\n:N: Number of fileds.\n\n:S: Part of text matched to condition regex.\n\n:S0, S1, ...: sub-string matched to condition regex. S0 is entire matched part, S1, S2 are sub group of condition regex.\n\n:(name): If condition regex has group names defined by ``(?P<name>)``, sub-string could be referenced by variable ``name``.\n\n:M: Match object.\n\n:E: Function to call subprocess.check_output(). ``E('ls ~')`` is equevalent to ``subprocess.check_output('ls ~', shell=True, universal_newline=True)``.\n\n:P: (Python3 only) Function to call print(). ``P('STRING')`` is equevalent to ``print('STRING')``.\n\n:C: The `pathlib.Path <https://docs.python.org/3/library/pathlib.html#concrete-paths>`__ object of the current directory.\n\n\nPre-imported modules\n---------------------\n\nFollowing modules are imported as follows::\n\n    import sys, os, re\n    from os import path\n    from glob import *\n    from pathlib import *  # Only if pathlib is installed.\n\n\nScript file\n-----------\n\nIf the file ``~/.tserc`` exists, the file is execused at beginning. 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The string **\\`ls ~\\`** is equivaent to ``subprocess.check_output('ls ~', shell=True, universal_newline=True)``.\n\nIn Python 3.6 or later, ``f`` prefix is supported::\n\n    ls | tse -s '\\.txt' 'P(f`cat {L}`)'\n\n\nExamples\n--------\n\nPrint sum of numeric characters in an each line of input stream::\n\n    tse -s \"\\d+\" \\\n         \"print(sum(int(s) for s in re.findall(r\"\\d+\", L)))\" \\\n         -- *.*\n\n\nSum all numeric characters in all lines::\n\n    tse -b \"all=0\" \\\n         -s \"\\d+\" \"all+=sum(int(s) for s in re.findall(r\"\\d+\", L)))\" \\\n         -e \"P(all)\"\n         -- *.*\n\nFind all extension parts in current directory::\n\n    ls | tse --begin 'exts=set()' --end 'P(exts)' \\\n         -s '' 'exts.add(Path(L).suffix)'\n\n\n\n",
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