Add: write out all words in input

1 files changed, 41 insertions, 0 deletions

diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 0000000..b0d0d03
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,41 @@
+use std::env;
+use std::fs::File;
+use std::io;
+use std::io::BufRead;
+
+
+
+fn main() -> io::Result<()> {
+    for filename in env::args().skip(1) {
+        let mut f = File::open(&filename)?;
+        let mut reader = io::BufReader::new(f);
+        print_words(&mut reader)?;
+    }
+    Ok(())
+}
+
+
+fn print_words(reader: &mut io::BufReader<File>) -> io::Result<()> {
+    for line in reader.lines() {
+        let line = line?;
+        print_words_in_line(&line);
+    }
+    Ok(())
+}
+
+
+fn print_words_in_line(line: &str) {
+    let mut was_in_word = false;
+    for c in line.chars() {
+        let letter = c.is_alphabetic();
+        if letter {
+            was_in_word = true;
+            print!("{}", c);
+        } else {
+            if was_in_word {
+                println!("");
+            }
+            was_in_word = false;
+        }
+    }
+}