From 9c63c4b89ea0fd889f7f0fd1da71684511e6620e Mon Sep 17 00:00:00 2001
From: Till Hoeppner
Date: Tue, 9 Jun 2015 00:18:31 +0200
Subject: Add basic frequency counter binary

---
 src/format/binary.rs   | 13 +++++++------
 src/format/mod.rs      |  2 +-
 src/format/weechat3.rs | 11 ++++++++++-
 src/freq.rs            | 53 ++++++++++++++++++++++++++++++++++++++++++++++++++
 src/lib.rs             |  1 +
 5 files changed, 72 insertions(+), 8 deletions(-)
 create mode 100644 src/freq.rs

(limited to 'src')

diff --git a/src/format/binary.rs b/src/format/binary.rs
index aae760c..f7efd7d 100644
--- a/src/format/binary.rs
+++ b/src/format/binary.rs
@@ -1,6 +1,5 @@
-use std::io::{ self, BufRead, Write };
-use std::borrow::ToOwned;
-use std::iter::{ Iterator };
+use std::io::{ BufRead, Write };
+use std::iter::Iterator;
 
 use log::Event;
 use format::{ Encode, Decode };
@@ -10,19 +9,21 @@ use bincode::{ self, SizeLimit };
 pub struct Binary;
 
 pub struct Iter<R> where R: BufRead {
-    input: R,
+    input: R
 }
 
 impl<R> Iterator for Iter<R> where R: BufRead {
     type Item = ::Result<Event>;
     fn next(&mut self) -> Option<::Result<Event>> {
-        Some(bincode::decode_from(&mut self.input, SizeLimit::Infinite).map_err(|_| ::IlcError::BincodeDecode))
+        Some(bincode::decode_from::<R, Event>(&mut self.input, SizeLimit::Infinite)
+             .map_err(|_| ::IlcError::BincodeDecode))
     }
 }
 
 impl<W> Encode<W> for Binary where W: Write {
     fn encode(&self, mut output: W, event: &Event) -> ::Result<()> {
-        bincode::encode_into(event, &mut output, SizeLimit::Infinite).map_err(|_| ::IlcError::BincodeEncode)
+        bincode::encode_into(event, &mut output, SizeLimit::Infinite)
+            .map_err(|_| ::IlcError::BincodeEncode)
     }
 }
 
diff --git a/src/format/mod.rs b/src/format/mod.rs
index 2c271bd..0716dba 100644
--- a/src/format/mod.rs
+++ b/src/format/mod.rs
@@ -2,7 +2,7 @@
 //! As the source format may not provide the same information as the
 //! target format, all formats must allow for omittable information.
 
-use std::io::{ self, BufRead, Write };
+use std::io::{ BufRead, Write };
 
 use log::Event;
 
diff --git a/src/format/weechat3.rs b/src/format/weechat3.rs
index 59bb072..f319ace 100644
--- a/src/format/weechat3.rs
+++ b/src/format/weechat3.rs
@@ -1,4 +1,4 @@
-use std::io::{ self, BufRead, Write };
+use std::io::{ BufRead, Write };
 use std::borrow::ToOwned;
 use std::iter::{ Iterator };
 
@@ -58,6 +58,10 @@ impl<R> Iterator for Iter<R> where R: BufRead {
                     nick: nick.to_owned(), channel: channel.to_owned(), mask: mask(host),
                     reason: mask(&join(reason, &split_tokens[8..])), time: timestamp(date, time)
                 })),
+                [date, time, "<--", nick, host, "has", "quit", reason..] => return Some(Ok(Event::Quit {
+                    nick: nick.to_owned(), mask: mask(host),
+                    reason: mask(&join(reason, &split_tokens[7..])), time: timestamp(date, time)
+                })),
                 [date, time, "--", notice, content..]
                     if notice.starts_with("Notice(")
                     => return Some(Ok(Event::Notice {
@@ -68,6 +72,11 @@ impl<R> Iterator for Iter<R> where R: BufRead {
                 [date, time, "--", "irc:", "disconnected", "from", "server", _..] => return Some(Ok(Event::Disconnect {
                     time: timestamp(date, time)
                 })),
+                [date, time, "--", nick, verb, "now", "known", "as", new_nick]
+                    if verb == "is" || verb == "are"
+                    => return Some(Ok(Event::Nick {
+                    old: nick.to_owned(), new: new_nick.to_owned(), time: timestamp(date, time)
+                })),
                 [date, time, sp, "*", nick, msg..]
                     if sp.is_empty()
                     => return Some(Ok(Event::Action {
diff --git a/src/freq.rs b/src/freq.rs
new file mode 100644
index 0000000..21c4e62
--- /dev/null
+++ b/src/freq.rs
@@ -0,0 +1,53 @@
+extern crate ilc;
+
+use std::io;
+use std::collections::hash_map::*;
+
+use ilc::log::Event::*;
+use ilc::format::{ self, Decode };
+
+struct Person {
+    lines: u32,
+    words: u32
+}
+
+fn words(s: &str) -> u32 {
+    s.split_whitespace().filter(|s| !s.is_empty()).count() as u32
+}
+
+fn main() {
+    let stdin = io::stdin();
+
+    let mut stats: HashMap<String, Person> = HashMap::new();
+
+    let mut parser = format::weechat3::Weechat3;
+    for e in parser.decode(stdin.lock()) {
+        let m = match e {
+            Ok(m) => m,
+            Err(err) => panic!(err)
+        };
+
+        match m {
+            Msg { ref from, ref content, .. } => {
+                if stats.contains_key(from) {
+                    let p: &mut Person = stats.get_mut(from).unwrap();
+                    p.lines += 1;
+                    p.words += words(content);
+                } else {
+                    stats.insert(from.clone(), Person {
+                        lines: 1,
+                        words: words(content)
+                    });
+                }
+            },
+            _ => ()
+        }
+    }
+
+    let mut stats: Vec<(String, Person)> = stats.into_iter().collect();
+    stats.sort_by(|&(_, ref a), &(_, ref b)| b.words.cmp(&a.words));
+
+    for &(ref name, ref stat) in stats.iter().take(10) {
+        println!("{}:\n\tLines: {}\n\tWords: {}", name, stat.lines, stat.words)
+    }
+}
diff --git a/src/lib.rs b/src/lib.rs
index aabaae3..d6afd38 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,5 +1,6 @@
 #![feature(plugin, slice_patterns, core, custom_derive)]
 #![plugin(regex_macros)]
+#![cfg_attr(feature = "lints", plugin(clippy))]
 extern crate regex;
 extern crate chrono;
 #[macro_use]
-- 
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