69 lines
1.6 KiB
Rust
69 lines
1.6 KiB
Rust
use crate::sql::error::IResult;
|
|
use nom::branch::alt;
|
|
use nom::bytes::complete::take_until;
|
|
use nom::character::complete::char;
|
|
use nom::character::complete::multispace0;
|
|
use nom::character::complete::multispace1;
|
|
use nom::character::complete::not_line_ending;
|
|
use nom::multi::many1;
|
|
|
|
pub fn mightbespace(i: &str) -> IResult<&str, ()> {
|
|
let (i, _) = alt((comment, blank))(i)?;
|
|
Ok((i, ()))
|
|
}
|
|
|
|
pub fn shouldbespace(i: &str) -> IResult<&str, ()> {
|
|
let (i, _) = alt((comment, space))(i)?;
|
|
Ok((i, ()))
|
|
}
|
|
|
|
pub fn comment(i: &str) -> IResult<&str, ()> {
|
|
let (i, _) = multispace0(i)?;
|
|
let (i, _) = many1(alt((block, slash, dash, hash)))(i)?;
|
|
let (i, _) = multispace0(i)?;
|
|
Ok((i, ()))
|
|
}
|
|
|
|
pub fn block(i: &str) -> IResult<&str, ()> {
|
|
let (i, _) = multispace0(i)?;
|
|
let (i, _) = char('/')(i)?;
|
|
let (i, _) = char('*')(i)?;
|
|
let (i, _) = take_until("*/")(i)?;
|
|
let (i, _) = char('*')(i)?;
|
|
let (i, _) = char('/')(i)?;
|
|
let (i, _) = multispace0(i)?;
|
|
Ok((i, ()))
|
|
}
|
|
|
|
pub fn slash(i: &str) -> IResult<&str, ()> {
|
|
let (i, _) = multispace0(i)?;
|
|
let (i, _) = char('/')(i)?;
|
|
let (i, _) = char('/')(i)?;
|
|
let (i, _) = not_line_ending(i)?;
|
|
Ok((i, ()))
|
|
}
|
|
|
|
pub fn dash(i: &str) -> IResult<&str, ()> {
|
|
let (i, _) = multispace0(i)?;
|
|
let (i, _) = char('-')(i)?;
|
|
let (i, _) = char('-')(i)?;
|
|
let (i, _) = not_line_ending(i)?;
|
|
Ok((i, ()))
|
|
}
|
|
|
|
pub fn hash(i: &str) -> IResult<&str, ()> {
|
|
let (i, _) = multispace0(i)?;
|
|
let (i, _) = char('#')(i)?;
|
|
let (i, _) = not_line_ending(i)?;
|
|
Ok((i, ()))
|
|
}
|
|
|
|
fn blank(i: &str) -> IResult<&str, ()> {
|
|
let (i, _) = multispace0(i)?;
|
|
Ok((i, ()))
|
|
}
|
|
|
|
fn space(i: &str) -> IResult<&str, ()> {
|
|
let (i, _) = multispace1(i)?;
|
|
Ok((i, ()))
|
|
}
|