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ratex_parser/functions/
overline.rs

1use std::collections::HashMap;
2
3use crate::error::ParseResult;
4use crate::functions::{define_function_full, FunctionContext, FunctionSpec};
5use crate::parse_node::ParseNode;
6
7pub fn register(map: &mut HashMap<&'static str, FunctionSpec>) {
8    define_function_full(
9        map,
10        &["\\overline"],
11        "overline",
12        1, 0, None,
13        false, false, true, false, false,
14        handle_overline,
15    );
16
17    define_function_full(
18        map,
19        &["\\underline"],
20        "underline",
21        1, 0, None,
22        false,
23        true,  // allowed_in_text
24        true,
25        false, false,
26        handle_underline,
27    );
28}
29
30fn handle_overline(
31    ctx: &mut FunctionContext,
32    args: Vec<ParseNode>,
33    _opt_args: Vec<Option<ParseNode>>,
34) -> ParseResult<ParseNode> {
35    Ok(ParseNode::Overline {
36        mode: ctx.parser.mode,
37        body: Box::new(args.into_iter().next().unwrap()),
38        loc: None,
39    })
40}
41
42fn handle_underline(
43    ctx: &mut FunctionContext,
44    args: Vec<ParseNode>,
45    _opt_args: Vec<Option<ParseNode>>,
46) -> ParseResult<ParseNode> {
47    Ok(ParseNode::Underline {
48        mode: ctx.parser.mode,
49        body: Box::new(args.into_iter().next().unwrap()),
50        loc: None,
51    })
52}