Identifier (in C-like programming languages) Favorite

C-style variable name containing letters, digits, and underscores. Must start with a letter or underscore.

Sample Matches
Text Result
_bar
Group #0
_bar
match
foo
Group #0
foo
match
foo2
Group #0
foo2
match
foo_bar
Group #0
foo_bar
match
2foono match
foo barno match
foo-barno match