Started Rust in Action MEAP.

1 files changed, 16 insertions, 0 deletions

diff --git a/meap/meap-code/ch1/ch1-word-counts.rs b/meap/meap-code/ch1/ch1-word-counts.rs
new file mode 100644
index 0000000..fc5c8ea
--- /dev/null
+++ b/meap/meap-code/ch1/ch1-word-counts.rs
@@ -0,0 +1,16 @@
+use std::collections::HashMap;

+

+fn main() {

+    let text = "once upon a time ...";

+    let mut word_counts = HashMap::new();

+    

+    let pairs = text.split(" ")

+                    .map(|x| { (x, 1) });

+    

+    for (word, count) in pairs {

+        let tmp = word_counts.entry(word)

+                             .or_insert(0);

+        *tmp += count;

+    }

+    println!("{:?}", word_counts);

+}