how to insert characters behind matching expressions

hi, everyone
i want to insert ".jpg" behind the string
"abc", i can set the regular
expression to be ^abc, but how to set the replace parameter,
since i
want the result to be "abc.jpg".


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wizardyhnr wrote:
> hi, everyone
> i want to insert ".jpg" behind the string
"abc", i can set the regular
> expression to be ^abc, but how to set the replace
parameter, since i
> want the result to be "abc.jpg".

if your string has only three characters, say
"abc", then

pattern:   $
replacement:    .jpg
result:   abc.jpg

If "abc" is just a sub string in another string,
say "the word abc and
def", then you need backreference:

pattern:    (abc)
replacement:  $1.jpg

Note: you may need word boundary in the pattern part to
filter out
changes of cases from like "abcdef" to
"abc.jpgdef".

Xicheng


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