Regular Expressions 101

Pro

Group 1(TRACE(\s*)\(\S+\s*[,](\s*\S+\s*)[,](\s*\S+\s*)[,](\s*))

TRACEthe literal text TRACE (case sensitive)

Group 2(\s*)

\s*a Unicode whitespace character, repeated any number of times

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

\S+any character that is not Unicode whitespace, repeated at least once

\s*a Unicode whitespace character, repeated any number of times

Character Class[,]

,the literal , (44₁₀ / 54₈ / 2C₁₆)

Group 3(\s*\S+\s*)

\s*a Unicode whitespace character, repeated any number of times

\S+any character that is not Unicode whitespace, repeated at least once

\s*a Unicode whitespace character, repeated any number of times

Character Class[,]

,the literal , (44₁₀ / 54₈ / 2C₁₆)

Group 4(\s*\S+\s*)

\s*a Unicode whitespace character, repeated any number of times

\S+any character that is not Unicode whitespace, repeated at least once

\s*a Unicode whitespace character, repeated any number of times

Character Class[,]

,the literal , (44₁₀ / 54₈ / 2C₁₆)

Group 5(\s*)

\s*a Unicode whitespace character, repeated any number of times

Group 6([A-Za-z])

Character Class[A-Za-z]

A-Zone character from A (65₁₀) to Z (90₁₀) (case sensitive)

a-zone character from a (97₁₀) to z (122₁₀) (case sensitive)

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

Detailed match information will be displayed here automatically.

25 tokens

(TRACE(\s*)\(\S+\s*[,](\s*\S+\s*)[,](\s*\S+\s*)[,](\s*))([A-Za-z])

New

TRACE (PlmnTrace::getLogger(), DEBUG_2,
          &(StaticImsiTT::traceEmptyImsi),
          PlmnTrace::methodEntryTs);

\1,"%s" \6

TRACE (PlmnTrace::getLogger(), DEBUG_2,
          &(StaticImsiTT::traceEmptyImsi),
          PlmnTrace::methodEntryTs);