清空筛选条件
清空筛选条件

Replace regular expression in file name

1 次查看（过去 30 天）
g
g 2019-1-31
评论： Stephen23 2019-1-31
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
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?

请先登录，再进行评论。

请先登录，再回答此问题。

回答（2 个）

madhan ravi
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
Walter Roberson 2019-1-31
If you already tested str(end) for / then you might as well just append,
str = [str '/'];
madhan ravi
madhan ravi 2019-1-31
True sir Walter but wanted to indulge with regexprep :-)

请先登录，再进行评论。

Walter Roberson
Walter Roberson 2019-1-31
Why are you not using fullfile() instead?
S = '/home/directory1/sub';
new_S = regexprep(S, '(?<!/)$', '/', 'emptymatch');

类别

在 Help Center 和 File Exchange 中查找有关 Characters and Strings 的更多信息

标签

产品


版本

R2014b

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by