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josephyoung 写了：

fanhe 写了：不喜欢shell了，脚本现在都直接写 python

这个问题，带嵌套的，能写个python玩玩么？我也在学python中

#只要有算法，用什么都可以。

kose3@kose3-desktop:~$ cat tmp2.py
#!/usr/bin/env python

import sys
delete=0

file_source = open(sys.argv[1])
for line in file_source.readlines():
if line.strip().startswith("ifneq ("): delete = delete + 1
if delete == 0: print line,
if line.strip() == "endif": delete = delete - 1
file_source.close
#极少写python,指正指正。

楼主你说清楚你的需求吧，我自己是用c 写过 c 的预处理算法的，这种跟c 的预处理差不多，嵌套的分支不是这么简单的
你至少需要一个条件栈，每遇到 ifneq 就添加一个条件，只有当栈里面的所有的条件都是真时，正在读取的文本才不被忽略

fnan 写了：kose3@kose3-desktop:~$ cat tmp2.py
#!/usr/bin/env python
import sys
delete=0
file_source = open(sys.argv[1])
for line in file_source.readlines():
if line.strip().startswith("ifneq ("): delete = delete + 1
if delete == 0: print line,
if line.strip() == "endif": delete = delete - 1
file_source.close
#极少写python,指正指正。

不错，帮你缩进下
[python]#!/usr/bin/env python
import sys
delete = 0
file_source = open(sys.argv[1])
for line in file_source:
if line.strip().startswith("ifneq ("):
delete +=1
if delete == 0:
print line,
if line.strip() == "endif":
delete -= 1
file_source.close()
[/python]