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Mark individual incorrect characters #92

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Mark individual incorrect characters #92

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c4a1980
Mark individual incorrect characters
Jul 12, 2023
908603e
Remove unused code
Sep 28, 2023
685ed69
Mark individual incorrect characters, take II
Sep 28, 2023
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67 changes: 40 additions & 27 deletions src/ui.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -115,40 +115,53 @@ impl ThemedWidget for &Test {
}))
// current word
.chain({
let progress_ind = self.words[self.current_word]
.progress
.len()
.min(self.words[self.current_word].text.len());

let correct = self.words[self.current_word]
.text
.starts_with(&self.words[self.current_word].progress[..]);

let (typed, untyped) =
self.words[self.current_word]
.text
.split_at(ceil_char_boundary(
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This results in cargo throwing the warning:

warning: function `ceil_char_boundary` is never used
   --> src/ui.rs:346:4
    |
346 | fn ceil_char_boundary(string: &str, index: usize) -> usize {
    |    ^^^^^^^^^^^^^^^^^^
    |
    = note: `#[warn(dead_code)]` on by default

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I removed the unused code.

&self.words[self.current_word].text,
progress_ind,
));

let mut remaining = untyped.chars().chain(iter::once(' '));
let cursor = remaining.next().unwrap();
let text = &self.words[self.current_word].text;
let prog = &self.words[self.current_word].progress;
let text_count = text.chars().count();
let prog_count = prog.chars().count();

// Find the index for the first incorrect character
let mut incorrect_ind = 0;
for (idx, chr) in prog.char_indices() {
if !text.get(idx..).unwrap().starts_with(chr) {
break;
}
incorrect_ind = idx + chr.len_utf8();
}

let (cursor_ind, chr) = text.char_indices()
.nth(prog_count.min(text_count))
.unwrap_or((text.len(), '\0'));
let untyped_ind = cursor_ind + chr.len_utf8();

iter::once(vec![
Span::styled(
typed,
if correct {
theme.prompt_current_correct
} else {
theme.prompt_current_incorrect
},
text.get(..incorrect_ind).unwrap(),
theme.prompt_current_correct,
),
Span::styled(
text.get(incorrect_ind..cursor_ind).unwrap(),
theme.prompt_current_incorrect,
),
Span::styled(
cursor.to_string(),
text.get(cursor_ind..untyped_ind).unwrap_or(""),
theme.prompt_current_untyped.patch(theme.prompt_cursor),
),
Span::styled(remaining.collect::<String>(), theme.prompt_current_untyped),
Span::styled(
text.get(untyped_ind..).unwrap_or(""),
theme.prompt_current_untyped,
),
Span::styled(
" ", // Delimiting space
if prog_count > text_count {
// There are redundant letters at the end
theme.prompt_current_incorrect.patch(theme.prompt_cursor)
} else if prog_count == text_count {
theme.prompt_current_untyped.patch(theme.prompt_cursor)
} else {
theme.prompt_current_untyped
},
),
])
})
// remaining words
Expand Down