CTRL + space in the textboxes gives you all kinds of suggestions for regular expression writing.
查找
替换
Be sure to check out the \C regular expression operator, which I think is specific to Eclipse.
It saves a lot of work in replacing the same word in upper-case, lower-case, and camelCase variants.
For example, if the original text is:
SomeObject someObject = SOMEOBJECT; then doing a "Replace All" replacing
someObject with
\CanotherObject will get you:
AnotherObject anotherObject = ANOTHEROBJECT; https://dzone.com/articles/using-regular-expressions
I had an old method with hundreds of lines doing calling a getAttribute("X") and casting the result to a string.
(String)object1.getAttribute("X")
(String)object2.getAttribute("Y")
(String)objectN.getAttribute("Z") I had to change them all to use a new method that checks if the attribute is null. So the new line would be
getSafeStringAttribute(object1,"X")
getSafeStringAttribute(object2,"Y")
getSafeStringAttribute(objectN,"Z") With this simple regEx you can do a replace all!
find :
\(String\)(.+)\.getAttribute\("(.+)"\)
replace: getSafeStringAttribute($1,"$2")
The first (.+) will match the objectX part while the second will match the attribute name.
The best thing is that when you select some text and
type CTRL + F (if the Regular Expressions checkbox is ticked)
you string in the find will be already escaped from characters like '(', ')' etc!