A little record of replacing with regular expressions in eclipse (grouping with regular expressions)

Today at work encountered a point of trouble with the replacement, because the data class has been changed, the specific situation is this, the following code needs to be:

Player.skilldata[i].name

To be replaced by:

Player.skillData.getSkillInfo (i). Name

In particular, [i] is changed to getskillinfo (i), but the problem is that there is too much to modify, 200+ to use, and the parentheses are not necessarily "I", may be a variety of forms (such as "index "," _myindex ", etc.), can not be a manual one to change it ...

Finally, it is found that Eclipse supports the use of regular expressions, so just open the Find/Replace window, tick "regular expressions" and fill in the Find text box:

(skilldata\[) ([a-za-z0-9_$]*) (\])

In the Replace with text box, fill in:

Skilldata.getskillinfo ($)

All right, replace all, all the text under the current file will be replaced with the text we need.

Finally, focus on the grouping of regular expressions:

The regular expression stores the matched text in the "$" array, and we can use the $, $, $ ... access to all strings that match successfully, in an expression, a parenthesis represents a grouping.

Take our above expression example to see an example, such as the following text:

var name:string = Player.skilldata[i].name;

The results after matching are as follows:

$: skilldata[i]$1: skilldata[$2: i$3:]

We found that the whole text is always matched to $, and $ $, $ $ and $ $ are each corresponding to the 3 parentheses in our expression.

So, when you write the substitution, it means that the character in the second parenthesis that matches it is "I".

A little record of replacing with regular expressions in eclipse (grouping with regular expressions)