use crate::construct::partial_space_or_tab::{space_or_tab, space_or_tab_min_max};
use crate::event::Name;
use crate::state::{Name as StateName, State};
use crate::tokenizer::Tokenizer;
use crate::util::constant::TAB_SIZE;
pub fn start(tokenizer: &mut Tokenizer) -> State {
if !tokenizer.interrupt
&& tokenizer.parse_state.options.constructs.code_indented
&& matches!(tokenizer.current, Some(b'\t' | b' '))
{
tokenizer.enter(Name::CodeIndented);
tokenizer.attempt(State::Next(StateName::CodeIndentedAtBreak), State::Nok);
State::Retry(space_or_tab_min_max(tokenizer, TAB_SIZE, TAB_SIZE))
} else {
State::Nok
}
}
pub fn at_break(tokenizer: &mut Tokenizer) -> State {
match tokenizer.current {
None => State::Retry(StateName::CodeIndentedAfter),
Some(b'\n') => {
tokenizer.attempt(
State::Next(StateName::CodeIndentedAtBreak),
State::Next(StateName::CodeIndentedAfter),
);
State::Retry(StateName::CodeIndentedFurtherStart)
}
_ => {
tokenizer.enter(Name::CodeFlowChunk);
State::Retry(StateName::CodeIndentedInside)
}
}
}
pub fn inside(tokenizer: &mut Tokenizer) -> State {
match tokenizer.current {
None | Some(b'\n') => {
tokenizer.exit(Name::CodeFlowChunk);
State::Retry(StateName::CodeIndentedAtBreak)
}
_ => {
tokenizer.consume();
State::Next(StateName::CodeIndentedInside)
}
}
}
pub fn after(tokenizer: &mut Tokenizer) -> State {
tokenizer.exit(Name::CodeIndented);
tokenizer.interrupt = false;
State::Ok
}
pub fn further_start(tokenizer: &mut Tokenizer) -> State {
if tokenizer.lazy || tokenizer.pierce {
return State::Nok;
}
if tokenizer.current == Some(b'\n') {
tokenizer.enter(Name::LineEnding);
tokenizer.consume();
tokenizer.exit(Name::LineEnding);
State::Next(StateName::CodeIndentedFurtherStart)
} else {
tokenizer.attempt(State::Ok, State::Next(StateName::CodeIndentedFurtherBegin));
State::Retry(space_or_tab_min_max(tokenizer, TAB_SIZE, TAB_SIZE))
}
}
pub fn further_begin(tokenizer: &mut Tokenizer) -> State {
if matches!(tokenizer.current, Some(b'\t' | b' ')) {
tokenizer.attempt(State::Next(StateName::CodeIndentedFurtherAfter), State::Nok);
State::Retry(space_or_tab(tokenizer))
} else {
State::Nok
}
}
pub fn further_after(tokenizer: &mut Tokenizer) -> State {
match tokenizer.current {
Some(b'\n') => State::Retry(StateName::CodeIndentedFurtherStart),
_ => State::Nok,
}
}