How to replace uppercase letters to lowercase letters using regex in Eclipse?

regex eclipse uppercase lowercase
user196692 picture user196692 · Feb 12, 2010 · Viewed 25.7k times · Source

I'd like to go through all of my source code files and replace every occurence of k_Xyyy with k_xyyy (switch the first letter after k_ from uppercase to lowercase).

I'm using the eclipse dialog to search and replace multiple files. Right now I have the regex \bk_([A-Z]).

How do I specify the replacement string of the regex?

Answer

edio picture edio · Jul 24, 2012

I just resolved the same task (had to turn .net interface into java interface) utilizing the power of VIM :)

void DoMethod1 -> void doMethod1
Foo PerformMethod2 -> Foo performMethod2

:%s/\(^\s*\w\+\s\+\)\([A-Z]\)/\1\L\2/g

Here we are searching for (optional indentation followed by return type followed by whitespace) followed by (Uppercase letter). Braces are capturing groups. Then we are performing a replacement first capturing group \1 lowercase \L second capturing group \2.

This of course requires you to open file in Vim, but anyway this is much faster then doing the same thing by hand in Eclipse.

Related questions

How to search for occurrences of more than one space between words in a line

How to search for occurrences of more than one space between words in a line 1. this is a line containing 2 spaces 2. this is a line containing 3 spaces 3. this is a line containing multiple spaces first second three four All the …

Read More
Eclipse, regular expression search and replace

In eclipse, is it possible to use the matched search string as part of the replace string when performing a regular expression search and replace? Basically, I want to replace all occurrences of variableName.someMethod() with: ((TypeName)variableName.someMethod()) Where …

Read More
regex to find files containing one word but not another

I am trying to quickly find all .java files which contain one term but are missing another term. I'm using MyEclipse 10.7 and its 'Search | File Search' feature, which supports regular expressions. Will regex work in this scenario? What would the …

Read More