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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
commit36d22d82aa202bb199967e9512281e9a53db42c9 (patch)
tree105e8c98ddea1c1e4784a60a5a6410fa416be2de /third_party/rust/regex/examples/shootout-regex-dna-replace.rs
parentInitial commit. (diff)
downloadfirefox-esr-upstream.tar.xz
firefox-esr-upstream.zip
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'third_party/rust/regex/examples/shootout-regex-dna-replace.rs')
-rw-r--r--third_party/rust/regex/examples/shootout-regex-dna-replace.rs17
1 files changed, 17 insertions, 0 deletions
diff --git a/third_party/rust/regex/examples/shootout-regex-dna-replace.rs b/third_party/rust/regex/examples/shootout-regex-dna-replace.rs
new file mode 100644
index 0000000000..20694e06f3
--- /dev/null
+++ b/third_party/rust/regex/examples/shootout-regex-dna-replace.rs
@@ -0,0 +1,17 @@
+use std::io::{self, Read};
+
+macro_rules! regex {
+ ($re:expr) => {{
+ use regex::internal::ExecBuilder;
+ ExecBuilder::new($re).build().unwrap().into_regex()
+ }};
+}
+
+fn main() {
+ let mut seq = String::with_capacity(50 * (1 << 20));
+ io::stdin().read_to_string(&mut seq).unwrap();
+ let ilen = seq.len();
+
+ seq = regex!(">[^\n]*\n|\n").replace_all(&seq, "").into_owned();
+ println!("original: {}, replaced: {}", ilen, seq.len());
+}