Clash Royale CLAN TAG#URR8PPP

Regex recursion and multiple replacements

I have come across a challenge with regex and could use some assistance. Currently working on a script to update syntax on the source file for plugins by using regex.

Situation:

Without looping a regex search until no match, I am attempting to declare multiple variables as int within functions, since the old syntax did not require it.

For example this is the old code, followed by what I then want it to become
void Split(const char variable, test1, char variable2, test2, test3) {

void Split(const char variable, test1, char variable2, test2, test3) {

void Split(const char variable, int test1, char variable2, int test2, int test3) {

void Split(const char variable, int test1, char variable2, int test2, int test3) {

I have a regex to match a single instance of it here:
(^w.*?)((|, )([w_&]+)(, |))

I could then replace with:
12int 34

(^w.*?)((|, )([w_&]+)(, |))

12int 34

2 Answers
2

You can pass a function to re.sub:

re.sub

import re
def update(d) -> str:
return f' intd.group()' if len(re.findall('w+', d.group())) == 1 else d.group()

s = 'void Split(const char variable, test1, char variable2, test2, test3)'
new_s = re.sub('(?<=[,()]).*?(?=[,()])', update, s)


Output:

'void Split(const char variable, int test1, char variable2, int test2, int test3)'


I decided to just go with creating a loop

Edit:

m = re.search(r"((?:^|n)w.*?(?:,s*|())(w+(?:,s*|)))", code, re.M)
while m:
code = re.sub(r"((?:^|n)w.*?(?:,s*|())(w+(?:,s*|)))", r"1int 2", code, re.M)
m = re.match(r"((?:^|n)w.*?(?:,s*|())(w+(?:,s*|)))", code, re.M)


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