Initial commit of OpenSPARC T2 architecture model.

[OpenSPARC-T2-SAM] / sam-t2 / devtools / v9 / lib / python2.4 / lib-old / grep.py

# '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