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-rw-r--r--vendor/string_cache/examples/simple.rs26
1 files changed, 26 insertions, 0 deletions
diff --git a/vendor/string_cache/examples/simple.rs b/vendor/string_cache/examples/simple.rs
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index 000000000..f063b06bc
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+++ b/vendor/string_cache/examples/simple.rs
@@ -0,0 +1,26 @@
+
+
+use string_cache::DefaultAtom;
+
+fn main() {
+ let mut interned_stuff = Vec::new();
+ let text = "here is a sentence of text that will be tokenised and interned and some repeated \
+ tokens is of text and";
+ for word in text.split_whitespace() {
+ let seen_before = interned_stuff
+ .iter()
+ // We can use impl PartialEq<T> where T is anything string-like to compare to
+ // interned strings to either other interned strings, or actual strings Comparing two
+ // interned strings is very fast (normally a single cpu operation).
+ .filter(|interned_word| interned_word == &word)
+ .count();
+ if seen_before > 0 {
+ println!(r#"Seen the word "{}" {} times"#, word, seen_before);
+ } else {
+ println!(r#"Not seen the word "{}" before"#, word);
+ }
+ // We use the impl From<(Cow<'a, str>, or &'a str, or String) for Atom<Static> to intern a
+ // new string
+ interned_stuff.push(DefaultAtom::from(word));
+ }
+}