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        &["\\(", "$"],
11        "styling",
12        0,
13        0,
14        None,
15        false,
16        true,
17        false,
18        false,
19        false,
20        handle_math_switch,
21    );
22
23    define_function_full(
24        map,
25        &["\\)", "\\]"],
26        "text",
27        0,
28        0,
29        None,
30        false,
31        true,
32        false,
33        false,
34        false,
35        handle_math_close,
36    );
37}
38
39fn handle_math_switch(
40    ctx: &mut FunctionContext,
41    _args: Vec<ParseNode>,
42    _opt_args: Vec<Option<ParseNode>>,
43) -> ParseResult<ParseNode> {
44    let outer_mode = ctx.parser.mode;
45    ctx.parser.switch_mode(Mode::Math);
46    let close = if ctx.func_name == "\\(" { "\\)" } else { "$" };
47    let body = ctx.parser.parse_expression(false, Some(close))?;
48    ctx.parser.expect(close, true)?;
49    ctx.parser.switch_mode(outer_mode);
50
51    Ok(ParseNode::Styling {
52        mode: ctx.parser.mode,
53        style: StyleStr::Text,
54        body,
55        loc: None,
56    })
57}
58
59fn handle_math_close(
60    ctx: &mut FunctionContext,
61    _args: Vec<ParseNode>,
62    _opt_args: Vec<Option<ParseNode>>,
63) -> ParseResult<ParseNode> {
64    Err(ParseError::msg(format!("Mismatched {}", ctx.func_name)))
65}
ratex_parser/functions/math.rs

ratex_parser/functions/
math.rs
