regex101: PCRE2 (PHP) Match Workspace

^start of line

.*any character (except for line terminators), repeated any number of times

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Group 1((((c|C)(c|pp|xx|\+\+)?$)|((h|H)h?(pp|xx|\+\+)?$))|(ino|pde|proto|cu))

1st Alternative(((c|C)(c|pp|xx|\+\+)?$)|((h|H)h?(pp|xx|\+\+)?$))

Group 2(((c|C)(c|pp|xx|\+\+)?$)|((h|H)h?(pp|xx|\+\+)?$))

1st Alternative((c|C)(c|pp|xx|\+\+)?$)

Group 3((c|C)(c|pp|xx|\+\+)?$)

Group 4(c|C)

1st Alternativec

cthe literal c (99₁₀ / 143₈ / 63₁₆) (case sensitive)

2nd AlternativeC

Cthe literal C (67₁₀ / 103₈ / 43₁₆) (case sensitive)

Group 5(c|pp|xx|\+\+)?

?repeats the group contents below at most once:

1st Alternativec

cthe literal c (99₁₀ / 143₈ / 63₁₆) (case sensitive)

2nd Alternativepp

ppthe literal text pp (case sensitive)

3rd Alternativexx

xxthe literal text xx (case sensitive)

4th Alternative\+\+

\+the literal + (43₁₀ / 53₈ / 2B₁₆)

$end of line

2nd Alternative((h|H)h?(pp|xx|\+\+)?$)

Group 6((h|H)h?(pp|xx|\+\+)?$)

Group 7(h|H)

1st Alternativeh

hthe literal h (104₁₀ / 150₈ / 68₁₆) (case sensitive)

2nd AlternativeH

Hthe literal H (72₁₀ / 110₈ / 48₁₆) (case sensitive)

h?optionally matches the literal h (104₁₀ / 150₈ / 68₁₆) (case sensitive)

Group 8(pp|xx|\+\+)?

?repeats the group contents below at most once:

1st Alternativepp

ppthe literal text pp (case sensitive)

2nd Alternativexx

xxthe literal text xx (case sensitive)

3rd Alternative\+\+

\+the literal + (43₁₀ / 53₈ / 2B₁₆)

$end of line

2nd Alternative(ino|pde|proto|cu)

Group 9(ino|pde|proto|cu)

1st Alternativeino

inothe literal text ino (case sensitive)

2nd Alternativepde

3rd Alternativeproto

4th Alternativecu

$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

Search reference

Regular Expression

^.*\.((((c|C)(c|pp|xx|\+\+)?$)|((h|H)h?(pp|xx|\+\+)?$))|(ino|pde|proto|cu))$

New

./test/known_fail/addition.c
./test/known_fail/addition.C
./test/known_fail/addition.cpp
./test/known_fail/addition.cc
./test/known_fail/addition.c++
./test/known_fail/addition.cxx
./test/known_fail/addition.ino
./test/known_fail/addition.pde
test/known_fail/addition.proto
test/known_pass/addition.proto

./test/known_fail/test.h
./test/known_fail/test.H
./test/known_fail/test.hpp
./test/known_fail/test.hh
./test/known_fail/test.h++
./test/known_fail/test.hxx

./.git/objects/13
./.clang-format