Question

I need some help.

I have many rows in my text file with this :

invoke glVertex3f,-0.352848,0.081168,-0.123057

I want to copy each row before him and change glVertex3f with glColor3f.
The result will be like this:

invoke glColor3f,-0.352848,0.081168,-0.123057
invoke glVertex3f,-0.352848,0.081168,-0.123057

I want to make this with python or ctr+h (replace dialog – like geany editor with regex pattern).

Answer 1

With Python 2.7/3.1+ you can do this:

with open('input.txt') as input, open('output.txt', 'w') as output:
    for line in input:
        output.write(line.replace('glVertex3f', 'glColor3f'))
        output.write(line)

In earlier versions would nest the with statements.