def sed(target, pattern, match_model, replace, operate, output):
'''
sed : stream editor for filtering and transforming text
@param target: target: string list ,text file name or stdio
@param pattern: regex pattern or line number pattern
@param match_model: s: substring model, e: regex model, n: line number model
@param replace: replacement string
@param operate: d: delete, s: replace, a: append, i: insert
@prarm output: : rl: return as list , rt: return as string , p: print screen, w: write to file
'''
text = text_file.read_file(target)
if not text:
return None
result = []
line_num = 1
for line in text:
if grep.__match(line_num, line, match_model, pattern):
if operate == 's':
if str_utils.is_not_blank(replace):
result.append(replace)
else:
result.append(line)
elif operate == 'd':
continue
elif operate == 'i':
if str_utils.is_not_blank(replace):
result.append(replace)
result.append(line)
elif operate == 'a':
result.append(line)
if str_utils.is_not_blank(replace):
result.append(replace)
else:
result.append(line)
line_num = line_num + 1
output_result = ''.join(result)
if output == 'p':
print output_result
elif output == 'w':
if isinstance(target, str) or isinstance(target, unicode):
text_file.write_file(target, output_result)
elif output == 'rl':
return result
elif output == 'rt':
return output_result
def sed(target, pattern, match_model, replace, operate, output):
'''
sed : stream editor for filtering and transforming text
@param target: target: string list ,text file name or stdio
@param pattern: regex pattern or line number pattern
@param match_model: s: substring model, e: regex model, n: line number model
@param replace: replacement string
@param operate: d: delete, s: replace, a: append, i: insert
@prarm output: : rl: return as list , rt: return as string , p: print screen, w: write to file
'''
text = text_file.read_file(target)
if not text:
return None
result = []
line_num = 1
for line in text:
if grep.__match(line_num, line, match_model, pattern):
if operate == 's':
if str_utils.is_not_blank(replace):
result.append(replace)
else:
result.append(line)
elif operate == 'd':
continue
elif operate == 'i':
if str_utils.is_not_blank(replace):
result.append(replace)
result.append(line)
elif operate == 'a':
result.append(line)
if str_utils.is_not_blank(replace):
result.append(replace)
else:
result.append(line)
line_num = line_num + 1
output_result = ''.join(result)
if output == 'p':
print output_result
elif output == 'w':
if isinstance(target, str) or isinstance(target, unicode):
text_file.write_file(target, output_result)
elif output == 'rl':
return result
elif output == 'rt':
return output_result
def save(self, filename):
lines = []
for key in self.conf:
value = self.conf.get(key)
lines.append('%s = %s', key, value)
text_file.write_file(filename, lines)
