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//! To do.
use crate::constant::TAB_SIZE;
use crate::construct::partial_space_or_tab::space_or_tab_min_max;
use crate::tokenizer::{Code, State, StateFnResult, TokenType, Tokenizer};
pub fn start(tokenizer: &mut Tokenizer, code: Code) -> StateFnResult {
// To do: allow arbitrary when code (indented) is turned off.
tokenizer.go(space_or_tab_min_max(0, TAB_SIZE - 1), before)(tokenizer, code)
}
fn before(tokenizer: &mut Tokenizer, code: Code) -> StateFnResult {
match code {
Code::Char('>') => {
tokenizer.enter(TokenType::BlockQuote);
cont_before(tokenizer, code)
}
_ => cont_before(tokenizer, code),
}
}
pub fn cont(tokenizer: &mut Tokenizer, code: Code) -> StateFnResult {
// To do: allow arbitrary when code (indented) is turned off.
tokenizer.go(space_or_tab_min_max(0, TAB_SIZE - 1), cont_before)(tokenizer, code)
}
fn cont_before(tokenizer: &mut Tokenizer, code: Code) -> StateFnResult {
match code {
Code::Char('>') => {
tokenizer.enter(TokenType::BlockQuotePrefix);
tokenizer.enter(TokenType::BlockQuoteMarker);
tokenizer.consume(code);
tokenizer.exit(TokenType::BlockQuoteMarker);
(State::Fn(Box::new(cont_after)), None)
}
_ => (State::Nok, None),
}
}
fn cont_after(tokenizer: &mut Tokenizer, code: Code) -> StateFnResult {
match code {
Code::VirtualSpace | Code::Char('\t' | ' ') => {
tokenizer.enter(TokenType::BlockQuotePrefixWhitespace);
tokenizer.consume(code);
tokenizer.exit(TokenType::BlockQuotePrefixWhitespace);
tokenizer.exit(TokenType::BlockQuotePrefix);
(State::Ok, None)
}
_ => {
tokenizer.exit(TokenType::BlockQuotePrefix);
(State::Ok, Some(vec![code]))
}
}
}
pub fn end() -> Vec<TokenType> {
vec![TokenType::BlockQuote]
}
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