Crate regex_intersect
source · [−]Expand description
regex-intersect
is a library for finding out if two regexes have a non-empty intersection.
For example .*
and abc
obviously intersect (because .*
matches everything, including the string “abc”).
However, d.*
and abc
or a[h-z]c
and abc
do not, and could never intersect, because abc
could never start with a d
in the first case,
and b
is not in the set [h-z]
in the second case.
Examples
Check if non empty:
use regex_intersect::non_empty;
assert!(non_empty("a.*", "ab.*cd").expect("regex expressions should parse"))
Tracing
This libary incorporates tracing, which helps follow the way it operates. Tracing is not enabled by default but you can enable it:
regex-intersect = { version="0.1", features=["tracing"] }
Enums
An error in intersecting expressions
Functions
Check if left
and right
contains a non empty intersection.