ratex_parser/functions/
styling.rs

1use std::collections::HashMap;
2
3use crate::error::ParseResult;
4use crate::functions::{define_function_full, FunctionContext, FunctionSpec};
5use crate::parse_node::{ParseNode, StyleStr};
6
7pub fn register(map: &mut HashMap<&'static str, FunctionSpec>) {
8    define_function_full(
9        map,
10        &[
11            "\\displaystyle",
12            "\\textstyle",
13            "\\scriptstyle",
14            "\\scriptscriptstyle",
15        ],
16        "styling",
17        0,
18        0,
19        None,
20        true, // allowed_in_argument
21        true,
22        true,
23        false,
24        false,
25        handle_styling,
26    );
27}
28
29fn handle_styling(
30    ctx: &mut FunctionContext,
31    _args: Vec<ParseNode>,
32    _opt_args: Vec<Option<ParseNode>>,
33) -> ParseResult<ParseNode> {
34    let break_on = ctx.break_on_token_text.clone();
35    let body = ctx.parser.parse_expression(true, break_on.as_deref())?;
36
37    let style = match ctx.func_name.as_str() {
38        "\\displaystyle" => StyleStr::Display,
39        "\\textstyle" => StyleStr::Text,
40        "\\scriptstyle" => StyleStr::Script,
41        "\\scriptscriptstyle" => StyleStr::Scriptscript,
42        _ => StyleStr::Text,
43    };
44
45    Ok(ParseNode::Styling {
46        mode: ctx.parser.mode,
47        style,
48        body,
49        loc: None,
50    })
51}
ratex_parser/functions/styling.rs

ratex_parser/functions/
styling.rs
