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This commit is contained in:
Keith Simmons 2022-05-03 10:29:57 -07:00
parent 5e2e859413
commit 37c921f972
13 changed files with 621 additions and 113 deletions
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52
crates/util/src/test/marked_text.rs
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@ -21,22 +21,44 @@ pub fn marked_text_by(
pub fn marked_text(marked_text: &str) -> (String, Vec<usize>) {
let (unmarked_text, mut markers) = marked_text_by(marked_text, vec!['|']);
(unmarked_text, markers.remove(&'|').unwrap_or_else(Vec::new))
(unmarked_text, markers.remove(&'|').unwrap_or_default())
}
pub fn marked_text_ranges_by(
marked_text: &str,
delimiters: Vec<(char, char)>,
) -> (String, HashMap<(char, char), Vec<Range<usize>>>) {
let all_markers = delimiters
.iter()
.flat_map(|(start, end)| [*start, *end])
.collect();
let (unmarked_text, mut markers) = marked_text_by(marked_text, all_markers);
let range_lookup = delimiters
.into_iter()
.map(|(start_marker, end_marker)| {
let starts = markers.remove(&start_marker).unwrap_or_default();
let ends = markers.remove(&end_marker).unwrap_or_default();
assert_eq!(starts.len(), ends.len(), "marked ranges are unbalanced");
let ranges = starts
.into_iter()
.zip(ends)
.map(|(start, end)| {
assert!(end >= start, "marked ranges must be disjoint");
start..end
})
.collect::<Vec<Range<usize>>>();
((start_marker, end_marker), ranges)
})
.collect();
(unmarked_text, range_lookup)
}
pub fn marked_text_ranges(marked_text: &str) -> (String, Vec<Range<usize>>) {
let (unmarked_text, mut markers) = marked_text_by(marked_text, vec!['[', ']']);
let opens = markers.remove(&'[').unwrap_or_default();
let closes = markers.remove(&']').unwrap_or_default();
assert_eq!(opens.len(), closes.len(), "marked ranges are unbalanced");
let ranges = opens
.into_iter()
.zip(closes)
.map(|(open, close)| {
assert!(close >= open, "marked ranges must be disjoint");
open..close
})
.collect();
(unmarked_text, ranges)
let (unmarked_text, mut ranges) = marked_text_ranges_by(marked_text, vec![('[', ']')]);
(
unmarked_text,
ranges.remove(&('[', ']')).unwrap_or_else(Vec::new),
)
}