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Optimized getting of row length in insert/delete/split #11

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Optimized getting of row length in insert/delete/split #11

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12 changes: 3 additions & 9 deletions src/row.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -72,31 +72,26 @@ impl Row {
return;
}
let mut result: String = String::new();
let mut length = 0;
for (index, grapheme) in self.string[..].graphemes(true).enumerate() {
length += 1;
if index == at {
length += 1;
result.push(c);
}
result.push_str(grapheme);
}
self.len = length;
self.len += 1;
self.string = result;
}
pub fn delete(&mut self, at: usize) {
if at >= self.len() {
return;
}
let mut result: String = String::new();
let mut length = 0;
for (index, grapheme) in self.string[..].graphemes(true).enumerate() {
if index != at {
length += 1;
result.push_str(grapheme);
}
}
self.len = length;
self.len -= 1;
self.string = result;
}
pub fn append(&mut self, new: &Self) {
Expand All @@ -107,17 +102,16 @@ impl Row {
let mut row: String = String::new();
let mut length = 0;
let mut splitted_row: String = String::new();
let mut splitted_length = 0;
for (index, grapheme) in self.string[..].graphemes(true).enumerate() {
if index < at {
length += 1;
row.push_str(grapheme);
} else {
splitted_length += 1;
splitted_row.push_str(grapheme);
}
}

let splitted_length = self.len - length;
self.string = row;
self.len = length;
self.is_highlighted = false;
Expand Down