With regular expressions you can customize a search string and perform advanced searches.

^ character matches the start of a file

$ character matches the end of a file

. character matches any character

* character after a string matches any number of last character repetitions

\d matches any number character

\s matches any space character

\xnn matches a character with hex code "nn"

text1|text2 matches "text1" OR "text2"

Examples

test matches test

p.*e matches pe, pure, puzzle

J(ohn|ames) matches John or James

first\x09second matches first{Tab character}second

Pentium \d matches Pentium 2, Pentium 3, Pentium 4