nom_config_in/entry/
if.rs

1use nom::{
2    bytes::complete::tag,
3    combinator::{map, opt},
4    multi::many0,
5    sequence::{preceded, tuple},
6    IResult,
7};
8use serde::Serialize;
9
10use crate::{util::ws, ConfigInInput};
11
12use super::{
13    expression::{parse_expression, Expression},
14    parse_entry, Entry,
15};
16
17pub fn parse_if(input: ConfigInInput) -> IResult<ConfigInInput, If> {
18    map(
19        tuple((
20            ws(parse_if_condition),
21            many0(parse_entry),
22            opt(parse_else),
23            ws(opt(tag("fi"))),
24        )),
25        |(condition, entries, e, _)| If {
26            condition,
27            if_block: entries,
28            else_block: e,
29        },
30    )(input)
31}
32
33#[derive(Debug, Clone, Serialize, PartialEq)]
34pub struct If {
35    pub condition: Expression,
36    pub if_block: Vec<Entry>,
37    #[serde(skip_serializing_if = "Option::is_none")]
38    pub else_block: Option<Vec<Entry>>,
39}
40
41pub fn parse_if_condition(input: ConfigInInput) -> IResult<ConfigInInput, Expression> {
42    map(
43        tuple((
44            ws(tag("if")),
45            ws(ws(parse_expression)),
46            opt(ws(tag(";"))),
47            opt(ws(tag("then"))),
48        )),
49        |(_, e, _, _)| e,
50    )(input)
51}
52
53pub fn parse_else(input: ConfigInInput) -> IResult<ConfigInInput, Vec<Entry>> {
54    preceded(ws(tag("else")), many0(parse_entry))(input)
55}
nom_config_in/entry/if.rs

nom_config_in/entry/
if.rs
