neutralts/bif/
parse_bif_else.rs

1#![doc = include_str!("../../doc/bif-else.md")]
2
3use crate::{bif::constants::*, bif::Bif, bif::BifError, constants::*};
4
5impl<'a> Bif<'a> {
6    /*
7       {:else; ... :}
8       {:code; :}{:else; this is output :}
9       {:code; not empty :}{:!else; this is output :}
10    */
11    pub(crate) fn parse_bif_else(&mut self) -> Result<(), BifError> {
12        if self.mod_filter {
13            return Err(self.bif_error(BIF_ERROR_MODIFIER_NOT_ALLOWED));
14        }
15
16        self.extract_params_code(true);
17
18        if !self.flags.is_empty() {
19            return Err(self.bif_error(BIF_ERROR_FLAGS_NOT_ALLOWED));
20        }
21
22        if self.inherit.last_bif_out ^ self.mod_negate {
23            self.out = EMPTY_STRING;
24
25            return Ok(());
26        }
27
28        if self.code.contains(BIF_OPEN) {
29            self.code = new_child_parse!(self, &self.code, self.mod_scope);
30        }
31
32        self.out = self.code.to_string();
33
34        Ok(())
35    }
36}
37
38#[cfg(test)]
39#[path = "parse_bif_else_tests.rs"]
40mod tests;
neutralts/bif/parse_bif_else.rs

neutralts/bif/
parse_bif_else.rs
