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-rwxr-xr-xTools/scripts/rgrep.py67
1 files changed, 0 insertions, 67 deletions
diff --git a/Tools/scripts/rgrep.py b/Tools/scripts/rgrep.py
deleted file mode 100755
index c39bf93..0000000
--- a/Tools/scripts/rgrep.py
+++ /dev/null
@@ -1,67 +0,0 @@
-#! /usr/bin/env python3
-
-"""Reverse grep.
-
-Usage: rgrep [-i] pattern file
-"""
-
-import sys
-import re
-import getopt
-
-
-def main():
- bufsize = 64 * 1024
- reflags = 0
- opts, args = getopt.getopt(sys.argv[1:], "i")
- for o, a in opts:
- if o == '-i':
- reflags = reflags | re.IGNORECASE
- if len(args) < 2:
- usage("not enough arguments")
- if len(args) > 2:
- usage("exactly one file argument required")
- pattern, filename = args
- try:
- prog = re.compile(pattern, reflags)
- except re.error as msg:
- usage("error in regular expression: %s" % msg)
- try:
- f = open(filename)
- except IOError as msg:
- usage("can't open %r: %s" % (filename, msg), 1)
- with f:
- f.seek(0, 2)
- pos = f.tell()
- leftover = None
- while pos > 0:
- size = min(pos, bufsize)
- pos = pos - size
- f.seek(pos)
- buffer = f.read(size)
- lines = buffer.split("\n")
- del buffer
- if leftover is None:
- if not lines[-1]:
- del lines[-1]
- else:
- lines[-1] = lines[-1] + leftover
- if pos > 0:
- leftover = lines[0]
- del lines[0]
- else:
- leftover = None
- for line in reversed(lines):
- if prog.search(line):
- print(line)
-
-
-def usage(msg, code=2):
- sys.stdout = sys.stderr
- print(msg)
- print(__doc__)
- sys.exit(code)
-
-
-if __name__ == '__main__':
- main()