Replace regular expression in file name
显示 更早的评论
I want to use regular expressions replacement for file names in the following way.
Say I have a string '/home/directory1/sub'
I want to replace this with the string 'home/directory1/sub/' (so this needs to work for combinations of letters, numbers, characters)
or if it already had the / at the end, to leave it as is.
How would I do this in this way? I've tried using the documentation but can't seem to get it right. (Also, I can only use pre2015 commands)
1 个评论
Stephen23
2019-1-31
@grant: just out of curiosity, what is the user case for this? Have you tried using fullfile, which avoids the need to mess around with file separators?
回答（2 个）
madhan ravi
2019-1-31
str='/home/directory1/subs'
if strcmp(str(end),'/')
return
else
expp='$'
str=regexprep(str,expp,'/','emptymatch')
end
2 个评论
Walter Roberson
2019-1-31
If you already tested str(end) for / then you might as well just append,
str = [str '/'];
madhan ravi
2019-1-31
True sir Walter but wanted to indulge with regexprep :-)
Walter Roberson
2019-1-31
Why are you not using fullfile() instead?
S = '/home/directory1/sub';
new_S = regexprep(S, '(?<!/)$', '/', 'emptymatch');
类别
在 帮助中心 和 File Exchange 中查找有关 Workspace Variables and MAT Files 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
Translated by 
