Regular Expressions 101

Pro

^start of line

Negated Character Class[^\\\r\n]*

*matches any number of characters outside the set below:

\\the literal \ (92₁₀ / 134₈ / 5C₁₆)

\ra carriage return (ASCII 13)

\na line-feed (newline) character (ASCII 10)

\\the literal \ (92₁₀ / 134₈ / 5C₁₆)

Group 1([^\\\r\n]+(?:\\[^\\\r\n]+)+)

Negated Character Class[^\\\r\n]+

+matches at least one character outside the set below:

\\the literal \ (92₁₀ / 134₈ / 5C₁₆)

\ra carriage return (ASCII 13)

\na line-feed (newline) character (ASCII 10)

Non-Capturing Group(?:\\[^\\\r\n]+)+

+repeats the group contents below at least once:

\\the literal \ (92₁₀ / 134₈ / 5C₁₆)

Negated Character Class[^\\\r\n]+

+matches at least one character outside the set below:

\\the literal \ (92₁₀ / 134₈ / 5C₁₆)

\ra carriage return (ASCII 13)

\na line-feed (newline) character (ASCII 10)

\\the literal \ (92₁₀ / 134₈ / 5C₁₆)

Negated Character Class[^\\\r\n]+

+matches at least one character outside the set below:

\\the literal \ (92₁₀ / 134₈ / 5C₁₆)

\ra carriage return (ASCII 13)

\na line-feed (newline) character (ASCII 10)

$end of line

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

Regular Expression

^[^\\\r\n]*\\([^\\\r\n]+(?:\\[^\\\r\n]+)+)\\[^\\\r\n]+$

New

c:\foo\bar\baz.txt
C:\FOO\BAR\BAZ.TXT
C:\FoO\BaR\BaZ.TxT
C:\FoO\BaR\test\BaZ.TxT
and so on.

Expression should match "foo\bar".

C:\FOO\\\BAR\BAZ.TXT
C:\FOO\\BAZ.TXT

Substitution

c:\foo\bar\baz.txt
C:\FOO\BAR\BAZ.TXT
C:\FoO\BaR\BaZ.TxT
C:\FoO\BaR\test\BaZ.TxT
and so on.

Expression should match "foo\bar".

C:\FOO\\\BAR\BAZ.TXT
C:\FOO\\BAZ.TXT