MATLAB Answers

How to search and replace a text from a character vector?

2 ビュー (過去 30 日間)
Kazi Alam
Kazi Alam 2021 年 7 月 8 日
コメント済み: Kazi Alam 2021 年 7 月 8 日
Hallo, Thanks for reading,
I have a character array (1x22222) read from a text file. Using the character vector I would like
to serach for the following line within the array: ( ' * ' here is represented as random text part)
'(:PAR :N CORNERS :DIM (4 2) :V #2A(*)'
After that I would like to replace the text with following line:
'(:PAR :N CORNERS :DIM (4 2) :V #2A((0.0 4.0) (2.5 4.0) (2.5 0.0) (0.0 0.0))'
I have the following lines of code but it cannot find the intended text
f = regexprep(character_array,'(:PAR :N CORNERS :DIM (4 2) :V #2A(*)'],...
'(:PAR :N CORNERS :DIM (4 2) :V #2A((0.0 4.0) (2.5 4.0) (2.5 0.0) (0.0 0.0))');


Bhavya Chopra
Bhavya Chopra 2021 年 7 月 8 日
Please note that ‘(‘ is a special character. For replacing the described lines with the intended text, please replace the expression (second argument of the regexprep function) with:
'\(:PAR :N CORNERS :DIM \(4 2\) :V #2A\(.*?\)'
  1 件のコメント
Kazi Alam
Kazi Alam 2021 年 7 月 8 日
@Bhavya Chopra thank you very much. A follow-up question, if you are interested.
I have similar lines with varying number as you can see in photo below ( numbered the lines). If I want to change the numbers on individual lines what would be the procedure. Right now with wildcard only the first line can be changed.


その他の回答 (0 件)

Community Treasure Hunt

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

Start Hunting!

Translated by