bendns' repos / gracilaria
A simple CPU rendered GUI IDE experience.
Diffstat (limited to 'src/sni.rs')
-rw-r--r--src/sni.rs45
1 files changed, 36 insertions, 9 deletions
diff --git a/src/sni.rs b/src/sni.rs
index bcd0d4e..9667848 100644
--- a/src/sni.rs
+++ b/src/sni.rs
@@ -1,8 +1,33 @@
+use std::ops::Range;
+
use helix_core::snippets::parser::SnippetElement;
#[derive(Debug)]
pub struct Snippet {
- stops: Vec<(Stop, usize)>,
+ stops: Vec<(Stop, StopP)>,
+}
+
+#[derive(Debug, Clone, PartialEq, Eq)]
+enum StopP {
+ Just(usize),
+ Range(Range<usize>),
+}
+impl StopP {
+ pub fn r(self) -> Range<usize> {
+ match self {
+ Self::Just(x) => x..x,
+ Self::Range(range) => range,
+ }
+ }
+ pub fn manipulate(&mut self, mut f: impl FnMut(usize) -> usize) {
+ match self {
+ Self::Just(x) => *x = f(*x),
+ Self::Range(range) => {
+ range.start = f(range.start);
+ range.end = f(range.end);
+ }
+ }
+ }
}
impl Snippet {
@@ -17,35 +42,37 @@ impl Snippet {
Self::apply(value, &mut stops, &mut cursor, &mut o);
}
stops.sort_by_key(|x| x.0);
- stops.iter_mut().for_each(|x| x.1 += at);
+ stops.iter_mut().for_each(|x| x.1.manipulate(|x| x + at));
Some((Snippet { stops }, o))
}
- pub fn manipulate(&mut self, mut f: impl FnMut(usize) -> usize) {
- self.stops.iter_mut().for_each(|x| x.1 = f(x.1));
+ pub fn manipulate(&mut self, f: impl FnMut(usize) -> usize + Clone) {
+ self.stops.iter_mut().for_each(|x| x.1.manipulate(f.clone()));
}
- pub fn next(&mut self) -> usize {
+ pub fn next(&mut self) -> StopP {
self.stops.pop().unwrap().1
}
pub fn apply(
x: SnippetElement,
- stops: &mut Vec<(Stop, usize)>,
+ stops: &mut Vec<(Stop, StopP)>,
cursor: &mut usize,
text: &mut String,
) {
match x {
SnippetElement::Tabstop { tabstop, transform: None } =>
- stops.push((tabstop, *cursor)),
+ stops.push((tabstop, StopP::Just(*cursor))),
SnippetElement::Placeholder { tabstop, value } => {
+ let start = *cursor;
for value in value {
Self::apply(value, stops, cursor, text)
}
- stops.push((tabstop, *cursor))
+ stops.push((tabstop, StopP::Range(start..*cursor)))
}
SnippetElement::Choice { tabstop, choices } => {
+ let start = *cursor;
text.push_str(&choices[0]);
*cursor += choices[0].chars().count();
- stops.push((tabstop, *cursor))
+ stops.push((tabstop, StopP::Range(start..*cursor)))
}
SnippetElement::Text(x) => {
text.push_str(&x);