58 lines
1.1 KiB
Rust
58 lines
1.1 KiB
Rust
|
use nom::bytes::complete::is_not;
|
||
|
|
use nom::bytes::complete::tag;
|
||
|
|
use nom::sequence::delimited;
|
||
|
|
use nom::IResult;
|
||
|
|
use serde::{Deserialize, Serialize};
|
||
|
|
use std::fmt;
|
||
|
|
use std::str;
|
||
|
|
|
||
|
|
#[derive(Clone, Debug, Default, Eq, Hash, PartialEq, Serialize, Deserialize)]
|
||
|
|
pub struct Regex {
|
||
|
|
pub value: String,
|
||
|
|
}
|
||
|
|
|
||
|
|
impl<'a> From<&'a str> for Regex {
|
||
|
|
fn from(r: &str) -> Regex {
|
||
|
|
Regex {
|
||
|
|
value: String::from(r),
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
impl fmt::Display for Regex {
|
||
|
|
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
|
||
|
|
write!(f, "/{}/", &self.value)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
pub fn regex(i: &str) -> IResult<&str, Regex> {
|
||
|
|
let (i, v) = delimited(tag("/"), is_not("/"), tag("/"))(i)?;
|
||
|
|
Ok((i, Regex::from(v)))
|
||
|
|
}
|
||
|
|
|
||
|
|
#[cfg(test)]
|
||
|
|
mod tests {
|
||
|
|
|
||
|
|
use super::*;
|
||
|
|
|
||
|
|
#[test]
|
||
|
|
fn regex_simple() {
|
||
|
|
let sql = "/test/";
|
||
|
|
let res = regex(sql);
|
||
|
|
assert!(res.is_ok());
|
||
|
|
let out = res.unwrap().1;
|
||
|
|
assert_eq!("/test/", format!("{}", out));
|
||
|
|
assert_eq!(out, Regex::from("test"));
|
||
|
|
}
|
||
|
|
|
||
|
|
#[test]
|
||
|
|
fn regex_complex() {
|
||
|
|
let sql = "/test.*/";
|
||
|
|
let res = regex(sql);
|
||
|
|
assert!(res.is_ok());
|
||
|
|
let out = res.unwrap().1;
|
||
|
|
assert_eq!("/test.*/", format!("{}", out));
|
||
|
|
assert_eq!(out, Regex::from("test.*"));
|
||
|
|
}
|
||
|
|
}
|