mirror of
https://github.com/python/cpython.git
synced 2025-11-04 07:31:38 +00:00
79 lines
2.1 KiB
Python
79 lines
2.1 KiB
Python
# 'grep'
|
|
|
|
import regex
|
|
from regex_syntax import *
|
|
|
|
opt_show_where = 0
|
|
opt_show_filename = 0
|
|
opt_show_lineno = 1
|
|
|
|
def grep(pat, *files):
|
|
return ggrep(RE_SYNTAX_GREP, pat, files)
|
|
|
|
def egrep(pat, *files):
|
|
return ggrep(RE_SYNTAX_EGREP, pat, files)
|
|
|
|
def emgrep(pat, *files):
|
|
return ggrep(RE_SYNTAX_EMACS, pat, files)
|
|
|
|
def ggrep(syntax, pat, files):
|
|
if len(files) == 1 and type(files[0]) == type([]):
|
|
files = files[0]
|
|
global opt_show_filename
|
|
opt_show_filename = (len(files) != 1)
|
|
syntax = regex.set_syntax(syntax)
|
|
try:
|
|
prog = regex.compile(pat)
|
|
finally:
|
|
syntax = regex.set_syntax(syntax)
|
|
for filename in files:
|
|
fp = open(filename, 'r')
|
|
lineno = 0
|
|
while 1:
|
|
line = fp.readline()
|
|
if not line: break
|
|
lineno = lineno + 1
|
|
if prog.search(line) >= 0:
|
|
showline(filename, lineno, line, prog)
|
|
fp.close()
|
|
|
|
def pgrep(pat, *files):
|
|
if len(files) == 1 and type(files[0]) == type([]):
|
|
files = files[0]
|
|
global opt_show_filename
|
|
opt_show_filename = (len(files) != 1)
|
|
import re
|
|
prog = re.compile(pat)
|
|
for filename in files:
|
|
fp = open(filename, 'r')
|
|
lineno = 0
|
|
while 1:
|
|
line = fp.readline()
|
|
if not line: break
|
|
lineno = lineno + 1
|
|
if prog.search(line):
|
|
showline(filename, lineno, line, prog)
|
|
fp.close()
|
|
|
|
def showline(filename, lineno, line, prog):
|
|
if line[-1:] == '\n': line = line[:-1]
|
|
if opt_show_lineno:
|
|
prefix = `lineno`.rjust(3) + ': '
|
|
else:
|
|
prefix = ''
|
|
if opt_show_filename:
|
|
prefix = filename + ': ' + prefix
|
|
print prefix + line
|
|
if opt_show_where:
|
|
start, end = prog.regs()[0]
|
|
line = line[:start]
|
|
if '\t' not in line:
|
|
prefix = ' ' * (len(prefix) + start)
|
|
else:
|
|
prefix = ' ' * len(prefix)
|
|
for c in line:
|
|
if c != '\t': c = ' '
|
|
prefix = prefix + c
|
|
if start == end: prefix = prefix + '\\'
|
|
else: prefix = prefix + '^'*(end-start)
|
|
print prefix
|