Regex to find a string of characters + more

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Hey all

I'm looking for a regular expression that will find a string of characters...

"/* Call SUT */"

It is then suppose to insert 3 newlines before the string of characters.

On the First newline insert a string...

"/* Lower LOG level to improve performance and decrease output file size. */"

On the Second newline insert a string...

"Old_Log_Level = SET_LOG_LEVEL(cppth_ll_concise);"

And leave the Third newline empty.

Final result should look like:

/* Lower LOG level to improve performance and decrease output file size. */
Old_Log_Level = SET_LOG_LEVEL(cppth_ll_concise);

/* Call SUT */

Help would be appreciated.

Posted 7-Feb-11 22:26pm

R. Erasmus

Updated 7-Feb-11 22:27pm

v3

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Umair Feroze 8-Feb-11 4:39am

Is there any specific reason to use the Regular expression. It can also be done with replace function. You can search for newline+"/* Call SUT */"+newline and replace it with the lines you want i.e. /* Lower LOG level to improve performance and decrease output file size. */Old_Log_Level = SET_LOG_LEVEL(cppth_ll_concise);/* Call SUT */

R. Erasmus 8-Feb-11 4:42am

yes there is a specific reason... I'm using textpads regular expression find/replace mechanism... I found the solution in any case, thx.

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OriginalGriff · Answer 1 · 2011-02-07T22:39:00

You don't need a Regex to do that: you can just use the string.Replace method:

C#

string inp = "hello there\n/* Call SUT */goodbye";
inp = inp.Replace("/* Call SUT */",
                  "/* Lower LOG level to improve performance and decrease output file size. */\n" +
                  "Old_Log_Level = SET_LOG_LEVEL(cppth_ll_concise);\n" +
                  "\n" +
                  "/* Call SUT */");

R. Erasmus · Answer 2 · 2011-02-07T22:43:00

Managed to solve the problem myself thx.

Regex("^.*\/\* Call SUT \*\/.*$");
Regex("        \/\* Lower LOG level to improve performance and decrease output file size\. \*\/\n        Old_Log_Level = SET_LOG_LEVEL(cppth_ll_concise);\n\n        /* Call SUT */");

Or what I actually wanted to use it for:
Find what:

^.*\/\* Call SUT \*\/.*$

Replace with:

\/\* Lower LOG level to improve performance and decrease output file size\. \*\/\n        Old_Log_Level = SET_LOG_LEVEL(cppth_ll_concise);\n\n        /* Call SUT */

Regex to find a string of characters + more

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