Notepad++ Regular Expression Condition Replacement - regex

Question

I have a set of SQL script that wants to change schema.
create table Service.Table1 (col1 varchar(100));
create table Operation.Table2 (col1 varchar(100));
create table Support.Table3 (col1 varchar(100));
However, the schema is going to change
Service -> Sev
Operation -> Opn
Support -> Spt
The search regular expression is easy ([A-Za-z0-9_]+)\.([A-Za-z0-9_]+)
However, how to do the conditional replacement in Notepad++ or other tools if they can?
Thanks!

Answer 1

If you have a predefined set of the schemas, you may use the conditional replacement in Notepad++ like this:
Find: (?:(?<a>Service)|(?<b>Operation)|(?<c>Support))\.(?<n>[A-Z0-9_]+)
Replace: (?{a}Sev:(?{b}Opn:Spt)).$+{n}
Match Case must be ticked off, and Regular expression must be on.

Answer 2

I would run replace 3 times, once for each schema name:
Find:
create table Service\.
Replace with:
create table Svc.
Find:
create table Support\.
Replace with:
create table Spt.
Find:
create table Operation\.
Replace with:
create table Opn.
Or here is one that uses groups references:
Find:
Service(\.[^\s]+)(.*)
Replace with:
Svc\1\2
Here \1 will hold the dot operator and the table name and \2 holds the rest of the line.

Answer 3

Notepad++ regex implementation is not really powerfull; so,
other tools if they can?
Here is a way to do it:
perl -pi.back -e '%tr=(Service=>"Sev",Operation=>"Opn",Support=>"Spt");s/(?<=create table )(\w+)/$tr{$1}/e;' TheFile
You can add any number of Original => 'Modified' as you want within the hash %tr.
TheFile will be backuped into TheFile.back before processing.