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Add support for patterns with groups (diff)

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This commit is contained in:
Ferran Basora 2019-02-21 14:03:24 +00:00
parent 892d5e3adf
commit 1bbc4a9ecd
1 changed files with 51 additions and 10 deletions
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53
src/state.rs
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@ -34,6 +34,8 @@ impl<'a> State<'a> {
let mut patterns = Vec::new();
patterns.push(Regex::new(r"((https?://|git@|git://|ssh://|ftp://|file:///)[\w?=%/_.:,;~@!#$&()*+-]*)").unwrap()); // Urls
patterns.push(Regex::new(r"--- a/([^ ]+)").unwrap()); // Diff
patterns.push(Regex::new(r"\+\+\+ b/([^ ]+)").unwrap()); // Diff
patterns.push(Regex::new(r"[^ ]+/[^ ]+").unwrap()); // Paths
patterns.push(Regex::new(r"[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}").unwrap()); // Uid
patterns.push(Regex::new(r"[0-9a-f]{7,40}").unwrap()); // Sha id
@ -46,19 +48,38 @@ impl<'a> State<'a> {
let mut offset: i32 = 0;
loop {
let submatches = patterns.iter().filter_map(|pattern| pattern.find_iter(chunk).nth(0)).collect::<Vec<_>>();
let first_match_option = submatches.iter().min_by(|x, y| x.start().cmp(&y.start()));
let submatches = patterns.iter().filter_map(|pattern|
match pattern.find_iter(chunk).nth(0) {
Some(m) => Some((pattern, m)),
None => None
}
).collect::<Vec<_>>();
let first_match_option = submatches.iter().min_by(|x, y| x.1.start().cmp(&y.1.start()));
if let Some(first_match) = first_match_option {
let (pattern, matching) = first_match;
let text = &chunk[matching.start()..matching.end()]; // FIXME? matching.as_str()
if let Some(captures) = pattern.captures(text) {
let (subtext, substart) = if let Some(capture) = captures.get(1) {
(capture.as_str(), capture.start())
} else {
(matching.as_str(), 0)
};
matches.push(Match{
x: offset + first_match.start() as i32,
x: offset + matching.start() as i32 + substart as i32,
y: index as i32,
text: &chunk[first_match.start()..first_match.end()],
text: subtext,
hint: None
});
chunk = chunk.get(first_match.end()..).expect("Unknown chunk");
offset = offset + first_match.end() as i32;
chunk = chunk.get(matching.end()..).expect("Unknown chunk");
offset = offset + matching.end() as i32;
} else {
panic!("No matching?");
}
} else {
break;
}
@ -199,6 +220,26 @@ mod tests {
assert_eq!(match_lines(output).len(), 8);
}
#[test]
fn match_diff_a () {
let output = "Lorem lorem\n--- a/src/main.rs";
let results = match_lines(output);
assert_eq!(results.len(), 1);
assert_eq!(results.first().unwrap().text.clone(), "src/main.rs");
}
#[test]
fn match_diff_b () {
let output = "Lorem lorem\n+++ b/src/main.rs";
let results = match_lines(output);
assert_eq!(results.len(), 1);
assert_eq!(results.first().unwrap().text.clone(), "src/main.rs");
}
#[test]
fn priority () {
let output = "Lorem /var/fd70b569/9999.log 52463 lorem\n Lorem 973113 lorem 123e4567-e89b-12d3-a456-426655440000 lorem 8888 lorem\n https://crates.io/23456/fd70b569 lorem";