CODEWITHSUNDEEP
pythonstringpython-3.x
Algorys
Algorys

Reputation: 1790

Add given relative path ot another path in a string with Python

I've a string, with some relative paths inside, like the following for example:

<AdditionalIncludeDirectories>..\..\..\..\..\..\external\gmock\gmock-1.7.0\include;..\..\..\..\..\..\external\gmock\gmock-1.7.0\gtest\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>

And I want to only add ..\..\ for each path.

I can do that with replace method, but the problem here is that the number of "up step" is not fixed (dependending of the string I want to replace).

If I try to just replace ..\ with something like ..\..\..\ my script replace each occurence he found. So I have the following at final result ..\..\..\..\..\..\..\..\..\..\..\..\.

So how I can only add 2 "up step" to each path in this string in Python 3.

The desired result is:

<AdditionalIncludeDirectories>..\..\..\..\..\..\..\..\external\gmock\gmock-1.7.0\include;..\..\..\..\..\..\..\..\external\gmock\gmock-1.7.0\gtest\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>

Upvotes: 1

Views: 70

Answers (2)

user2390182
user2390182

Reputation: 73470

You can use the regex substitution of the re module:

>>> s = '..\..\..\..\..\..\external\gmock\...;..\..\..\..\..\..\external...'
>>> import re
>>> print(re.sub(r'(\.\.\\)+', r"..\\..\\", s))
..\..\external\gmock\...;..\..\external...

Upvotes: 0

yoav_aaa
yoav_aaa

Reputation: 387

There are better ways but this should work.

a = 'AdditionalIncludeDirectories>..\..\..\..\..\..\external\gmock\gmock-1.7.0\include;..\..\..\..\..\..\external\gmock\gmock-1.7.0\gtest\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>'  
b = re.search('>(.*)<', a)## Get paths str position
paths_str = a[b.start() + 1:b.end() - 1]## paths_str
paths = paths_str.split(';')
full_paths = ['..\..\{0}'.format(path) for path in paths]## adding up dirs
full = '{0}>{1}<;{2}'.format(a[:b.start()], ';'.join(full_paths), 
a[b.end():])## Combining together.

Upvotes: 1

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