replace all values of a variable by half

[Cynic]

is there any way to find and replace all values of a variable with the original value divided by two?

[PeterJones]

@Cynic ,

Not natively: the search-and-replace engine doesn’t handle math.

However, if you install the PythonScript plugin and look at the documentation, there’s an example of a search-and-replace using PythonScript that adds 1 to the numbers; you would just have to change that example to divide by 2 instead.

def add_1(m):
    return 'Y' + str(int(m.group(1)) + 1)

# replace X followed by numbers by an incremented number
# e.g.   X56 X39 X999
#          becomes
#        Y57 Y40 Y1000

editor.rereplace('X([0-9]+)', add_1);

becomes

def div_2(m):
    return 'Y' + str(int(m.group(1)) / 2)

# replace X followed by numbers halved
# e.g.   X56 X24 X99
#          becomes
#        Y28 Y12 Y49

editor.rereplace('X([0-9]+)', div_2);

[Cynic]

thanks a ton!