How can i find specific charater in strings between two word?-CodePudding

I'm having trouble coming up with the regex I need to do this find/replace in Notepad . I would like to find/replace specific character in strings between two words

for example

msgid "flower"
"test hold"
msgstr

I would like to find multiple o character between msgid " and msgstr and replace with a character. The result is

msgid "flawer"
"test hald"
msgstr

CodePudding user response：

Here I have written regex to perform the action above you have described. If you replace the o with whatever you're searching for, you will be able to search and capture it.

This is written assuming the PCRE Regex Engine. (What I could find is the one run in Notepad )

(?<=msgid ")(.*)(o)(.*)(?= msgstr)

Below is the replacement statement. The a can be replaced with whatever you wish to replace the captured text with. The $1 represents everything after msgid " and before the search text. The $3 represents anything after the captured statement and before the msgstr. If you want to use the captured text anywhere in the replace statement, you can reference it with $2.

$1a$3

CodePudding user response：

This looks very convoluted but should work for all cases:

((?:^.*?msgid "|\G)(?:(?!msgstr)[\s\S])*?)o(?=(?:(?!msgid ")[\s\S])*?msgstr)

Replace with

$1a

See test cases here

Basically what it does is to match os after seeing msgid ", after that get the end of previous match using \G and continue matching the rest of os before encountering msgstr.