Method consume_global_variable_name

crates/gitql-parser/src/tokenizer.rs:415–442

(&mut self)

    }

    fn consume_global_variable_name(&mut self) -> Result<Token, Box<Diagnostic>> {
        let start_index = self.index;

        // Advance `@`
        self.advance();

        // Make sure first character is  alphabetic
        if !self.is_current_char_func(|c| c.is_alphanumeric()) {
            return Err(Diagnostic::error(
                "Global variable name must start with alphabetic character",
            )
            .add_help("Add at least one alphabetic character after @")
            .with_location(self.current_source_location())
            .as_boxed());
        }

        while self.is_current_char_func(|c| c == '_' || c.is_alphanumeric()) {
            self.advance();
        }

        // Identifier is being case-insensitive by default, convert to lowercase to be easy to compare and lookup
        let literal = &self.content[start_index..self.index];
        let mut string: String = literal.iter().collect();
        string = string.to_lowercase();

        let location = self.current_source_location();
        Ok(Token::new(TokenKind::GlobalVariable(string), location))
    }

    fn consume_identifier(&mut self) -> Token {
        let start_index = self.index;