ratex_parser/functions/
math.rs

1use std::collections::HashMap;
2
3use crate::error::{ParseError, ParseResult};
4use crate::functions::{define_function_full, FunctionContext, FunctionSpec};
5use crate::parse_node::{Mode, ParseNode, StyleStr};
6
7pub fn register(map: &mut HashMap<&'static str, FunctionSpec>) {
8    define_function_full(
9        map,
10        &["\\(", "$"],
11        "styling",
12        0, 0, None,
13        false, true, false, false, false,
14        handle_math_switch,
15    );
16
17    define_function_full(
18        map,
19        &["\\)", "\\]"],
20        "text",
21        0, 0, None,
22        false, true, false, false, false,
23        handle_math_close,
24    );
25}
26
27fn handle_math_switch(
28    ctx: &mut FunctionContext,
29    _args: Vec<ParseNode>,
30    _opt_args: Vec<Option<ParseNode>>,
31) -> ParseResult<ParseNode> {
32    let outer_mode = ctx.parser.mode;
33    ctx.parser.switch_mode(Mode::Math);
34    let close = if ctx.func_name == "\\(" { "\\)" } else { "$" };
35    let body = ctx.parser.parse_expression(false, Some(close))?;
36    ctx.parser.expect(close, true)?;
37    ctx.parser.switch_mode(outer_mode);
38
39    Ok(ParseNode::Styling {
40        mode: ctx.parser.mode,
41        style: StyleStr::Text,
42        body,
43        loc: None,
44    })
45}
46
47fn handle_math_close(
48    ctx: &mut FunctionContext,
49    _args: Vec<ParseNode>,
50    _opt_args: Vec<Option<ParseNode>>,
51) -> ParseResult<ParseNode> {
52    Err(ParseError::msg(format!("Mismatched {}", ctx.func_name)))
53}
ratex_parser/functions/math.rs

ratex_parser/functions/
math.rs
