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Grep implementation with replace

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Fast grep implementation in python, with replace features

usage: [-h] [-v] [-x EXTENSIONS [EXTENSIONS ...]] [-r] [-l] [-i]
                   [-g REPLACE_EXPR] [-f REPLACE_EXPR]
                   expression [file]

file search and replace with regular expressions

positional arguments:
  expression            regular expression
  file                  file path (or directory if -r is used)

optional arguments:
  -h, --help            show this help message and exit
  -v, --version         show program's version number and exit
                        restrict search to file extensions (ex: .py .txt .java
  -r, --recursive       recursively search in path
  -l, --list            list files matching pattern
  -i, --inplace         update the file inplace (with -g or -f)
  -g REPLACE_EXPR, --replace-global REPLACE_EXPR
                        global replacement expression
  -f REPLACE_EXPR, --replace-first REPLACE_EXPR
                        first occurrence replacement expression

Why fast?

Because it exclusively uses generators, reptile never allocates big lists, it always processes one line in one file at a time. you can do a search on big files and large directories like / recursively without memory overhead.


Search "import" in ./ :

$ ./ "import" ./
import re
import os
import sys
    import argparse

Replacement & easy grouping with python re.sub syntax :

$ "\[(.*)\]\((.*)\)" -g "<a href=\"\2\">\1</a>" | diff -u -
---   2016-04-19 22:37:20.000000000 +0200
+++ -   2016-04-25 14:54:24.000000000 +0200
@@ -1,4 +1,4 @@
+!<a href="">Agera</a>
 Reactive Programming for Android


import greptile

# Replace "import" by "export" from dir `./`, in all files and these extensions: .py, .xml, .java
greptile.replace('import', 'export', './', '.py', '.xml', '.java')

# Return filenames of all files containing the text "import" from dir `./` and .py, .xml, .java
my_list = greptile.grep_rl('import', './', '.py', '.xml', '.java')

# same as calling replace()
greptile.sed_i(my_list, 'import', 'export')

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