ratex_parser/functions/
cr.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        &["\\\\", "\\newline"],
11        "cr",
12        0,
13        0,
14        None,
15        false,
16        false,
17        true,
18        false,
19        false,
20        handle_cr,
21    );
22}
23
24fn handle_cr(
25    ctx: &mut FunctionContext,
26    _args: Vec<ParseNode>,
27    _opt_args: Vec<Option<ParseNode>>,
28) -> ParseResult<ParseNode> {
29    // Only parse optional [size] if next token is directly "[" (no space)
30    let size = if ctx.parser.gullet.future().text == "[" {
31        ctx.parser.parse_size_group(true)?
32    } else {
33        None
34    };
35
36    let size = size.and_then(|node| {
37        if let ParseNode::Size { value, .. } = node {
38            Some(value)
39        } else {
40            None
41        }
42    });
43
44    let new_line = true;
45
46    Ok(ParseNode::Cr {
47        mode: ctx.parser.mode,
48        new_line,
49        size,
50        loc: None,
51    })
52}
ratex_parser/functions/cr.rs

ratex_parser/functions/
cr.rs
