Azzera filtri
Azzera filtri

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

2 visualizzazioni (ultimi 30 giorni)
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))');

Risposta accettata

Bhavya Chopra
Bhavya Chopra il 8 Lug 2021
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 Commento
Kazi Alam
Kazi Alam il 8 Lug 2021
@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.

Accedi per commentare.

Più risposte (0)

Categorie

Scopri di più su Characters and Strings in Help Center e File Exchange

Prodotti

Community Treasure Hunt

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

Start Hunting!

Translated by