use crate::compiler::{
grammar::{instruction::CompilerState, Capability, Comparator},
lexer::{word::Word, Token},
CompileError, Value, VariableType,
};
use crate::compiler::grammar::{test::Test, MatchType};
use super::test_string::TestString;
impl CompilerState<'_> {
pub(crate) fn parse_test_environment(&mut self) -> Result<Test, CompileError> {
let mut match_type = MatchType::Is;
let mut comparator = Comparator::AsciiCaseMap;
let mut name = None;
let mut key_list;
loop {
let token_info = self.tokens.unwrap_next()?;
match token_info.token {
Token::Tag(
word @ (Word::Is
| Word::Contains
| Word::Matches
| Word::Value
| Word::Count
| Word::Regex),
) => {
self.validate_argument(
1,
match word {
Word::Value | Word::Count => Capability::Relational.into(),
Word::Regex => Capability::Regex.into(),
Word::List => Capability::ExtLists.into(),
_ => None,
},
token_info.line_num,
token_info.line_pos,
)?;
match_type = self.parse_match_type(word)?;
}
Token::Tag(Word::Comparator) => {
self.validate_argument(2, None, token_info.line_num, token_info.line_pos)?;
comparator = self.parse_comparator()?;
}
_ => {
if name.is_none() {
if let Token::StringConstant(s) = token_info.token {
name = Value::Variable(VariableType::Environment(
s.into_string().to_lowercase(),
))
.into();
} else {
return Err(token_info.expected("environment variable"));
}
} else {
key_list = self.parse_strings_token(token_info)?;
break;
}
}
}
}
self.validate_match(&match_type, &mut key_list)?;
Ok(Test::Environment(TestString {
source: vec![name.unwrap()],
key_list,
match_type,
comparator,
is_not: false,
}))
}
}