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Code Issues Projects Releases Packages Wiki Activity Actions 13

Now uses varargs syntax to grep more than one file.

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This commit is contained in:
Guido van Rossum 1992-01-12 23:33:52 +00:00
parent b914257366
commit e9cde31c47
2 changed files with 96 additions and 60 deletions
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36
Lib/grep.py
View file

@ -4,21 +4,30 @@ import regex
from regex_syntax import * from regex_syntax import *
import string import string
def grep(pat, filename): opt_show_where = 0
return ggrep(RE_SYNTAX_GREP, pat, filename) opt_show_filename = 0
opt_show_lineno = 1
def egrep(pat, filename): def grep(pat, +files):
return ggrep(RE_SYNTAX_EGREP, pat, filename) return ggrep(RE_SYNTAX_GREP, pat, files)
def emgrep(pat, filename): def egrep(pat, +files):
return ggrep(RE_SYNTAX_EMACS, pat, filename) return ggrep(RE_SYNTAX_EGREP, pat, files)
def ggrep(syntax, pat, filename): 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) syntax = regex.set_syntax(syntax)
try: try:
prog = regex.compile(pat) prog = regex.compile(pat)
finally: finally:
syntax = regex.set_syntax(syntax) syntax = regex.set_syntax(syntax)
for filename in files:
fp = open(filename, 'r') fp = open(filename, 'r')
lineno = 0 lineno = 0
while 1: while 1:
@ -26,11 +35,20 @@ def ggrep(syntax, pat, filename):
if not line: break if not line: break
lineno = lineno + 1 lineno = lineno + 1
if prog.search(line) >= 0: if prog.search(line) >= 0:
showline(filename, lineno, line, prog)
fp.close()
def showline(filename, lineno, line, prog):
if line[-1:] == '\n': line = line[:-1] if line[-1:] == '\n': line = line[:-1]
if opt_show_lineno:
prefix = string.rjust(`lineno`, 3) + ': ' prefix = string.rjust(`lineno`, 3) + ': '
else:
prefix = ''
if opt_show_filename:
prefix = filename + ': ' + prefix
print prefix + line print prefix + line
if 0: # XXX if opt_show_where:
start, end = prog.regs[0] start, end = prog.regs()[0]
line = line[:start] line = line[:start]
if '\t' not in line: if '\t' not in line:
prefix = ' ' * (len(prefix) + start) prefix = ' ' * (len(prefix) + start)

36
Lib/lib-old/grep.py
View file

@ -4,21 +4,30 @@ import regex
from regex_syntax import * from regex_syntax import *
import string import string
def grep(pat, filename): opt_show_where = 0
return ggrep(RE_SYNTAX_GREP, pat, filename) opt_show_filename = 0
opt_show_lineno = 1
def egrep(pat, filename): def grep(pat, +files):
return ggrep(RE_SYNTAX_EGREP, pat, filename) return ggrep(RE_SYNTAX_GREP, pat, files)
def emgrep(pat, filename): def egrep(pat, +files):
return ggrep(RE_SYNTAX_EMACS, pat, filename) return ggrep(RE_SYNTAX_EGREP, pat, files)
def ggrep(syntax, pat, filename): 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) syntax = regex.set_syntax(syntax)
try: try:
prog = regex.compile(pat) prog = regex.compile(pat)
finally: finally:
syntax = regex.set_syntax(syntax) syntax = regex.set_syntax(syntax)
for filename in files:
fp = open(filename, 'r') fp = open(filename, 'r')
lineno = 0 lineno = 0
while 1: while 1:
@ -26,11 +35,20 @@ def ggrep(syntax, pat, filename):
if not line: break if not line: break
lineno = lineno + 1 lineno = lineno + 1
if prog.search(line) >= 0: if prog.search(line) >= 0:
showline(filename, lineno, line, prog)
fp.close()
def showline(filename, lineno, line, prog):
if line[-1:] == '\n': line = line[:-1] if line[-1:] == '\n': line = line[:-1]
if opt_show_lineno:
prefix = string.rjust(`lineno`, 3) + ': ' prefix = string.rjust(`lineno`, 3) + ': '
else:
prefix = ''
if opt_show_filename:
prefix = filename + ': ' + prefix
print prefix + line print prefix + line
if 0: # XXX if opt_show_where:
start, end = prog.regs[0] start, end = prog.regs()[0]
line = line[:start] line = line[:start]
if '\t' not in line: if '\t' not in line:
prefix = ' ' * (len(prefix) + start) prefix = ' ' * (len(prefix) + start)