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use crate::osc133::{Event, Parser};
pub(crate) const RESET: &[u8] = b"\x1b[0m";
pub(crate) struct Osc133DebugHighlighter {
parser: Parser,
}
impl Osc133DebugHighlighter {
pub(crate) fn new() -> Self {
Self {
parser: Parser::new(),
}
}
pub(crate) fn render(&mut self, data: &[u8]) -> Vec<u8> {
let mut events = Vec::new();
self.parser
.push_located(data, |located| events.push(located));
if events.is_empty() {
return data.to_vec();
}
let mut rendered = Vec::with_capacity(data.len() + (events.len() * 64));
let mut start = 0;
for located in events {
let offset = located.offset.min(data.len());
if offset > start {
rendered.extend_from_slice(&data[start..offset]);
}
rendered.extend_from_slice(event_label(&located.event));
rendered.extend_from_slice(RESET);
start = offset;
}
rendered.extend_from_slice(&data[start..]);
rendered
}
}
fn event_label(event: &Event) -> &'static [u8] {
match event {
Event::PromptStart => b"\x1b[1;37;45m[OSC133:A prompt]\x1b[0m",
Event::CommandStart => b"\x1b[1;30;43m[OSC133:B input]\x1b[0m",
Event::CommandExecuted => b"\x1b[1;30;46m[OSC133:C output]\x1b[0m",
Event::CommandFinished { exit_code: Some(0) } => b"\x1b[1;37;42m[OSC133:D exit=0]\x1b[0m",
Event::CommandFinished { exit_code: Some(_) } => b"\x1b[1;37;41m[OSC133:D exit!=0]\x1b[0m",
Event::CommandFinished { exit_code: None } => b"\x1b[1;37;44m[OSC133:D exit=?]\x1b[0m",
}
}
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