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-rw-r--r--formats/energymech/src/lib.rs262
1 files changed, 262 insertions, 0 deletions
diff --git a/formats/energymech/src/lib.rs b/formats/energymech/src/lib.rs
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+++ b/formats/energymech/src/lib.rs
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+// Copyright 2015 Till Höppner
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#![feature(slice_patterns)]
+
+#[macro_use]
+extern crate log;
+extern crate ilc_base;
+extern crate chrono;
+
+use std::io::{BufRead, Write};
+use std::borrow::{Cow, ToOwned};
+use std::iter::Iterator;
+
+use ilc_base::event::{Event, Time, Type};
+use ilc_base::format::{rejoin, strip_one};
+use ilc_base::{Context, Decode, Encode};
+
+use log::LogLevel::Info;
+
+use chrono::*;
+
+pub struct Energymech;
+
+static TIME_FORMAT: &'static str = "%H:%M:%S";
+
+pub struct Iter<'a> {
+ context: &'a Context,
+ input: &'a mut BufRead,
+ buffer: Vec<u8>,
+}
+
+impl<'a> Iterator for Iter<'a> {
+ type Item = ilc_base::Result<Event<'a>>;
+ fn next(&mut self) -> Option<ilc_base::Result<Event<'a>>> {
+ fn parse_time(context: &Context, time: &str) -> Time {
+ let h = time[1..3].parse::<u32>().unwrap();
+ let m = time[4..6].parse::<u32>().unwrap();
+ let s = time[7..9].parse::<u32>().unwrap();
+ if let Some(date) = context.override_date {
+ Time::Timestamp(context.timezone
+ .from_local_date(&date)
+ .and_time(NaiveTime::from_hms(h, m, s))
+ .single()
+ .expect("Transformed log times can't be represented, due \
+ to timezone transitions")
+ .timestamp())
+ } else {
+ Time::Hms(h as u8, m as u8, s as u8)
+ }
+ }
+
+ loop {
+ self.buffer.clear();
+ match self.input.read_until(b'\n', &mut self.buffer) {
+ Ok(0) | Err(_) => return None,
+ Ok(_) => (),
+ }
+
+ let buffer = String::from_utf8_lossy(&self.buffer);
+
+ let mut split_tokens: Vec<char> = Vec::new();
+ let tokens = buffer.split(|c: char| {
+ if c.is_whitespace() {
+ split_tokens.push(c);
+ true
+ } else {
+ false
+ }
+ })
+ .collect::<Vec<_>>();
+
+ if log_enabled!(Info) {
+ info!("Original: `{}`", buffer);
+ info!("Parsing: {:?}", tokens);
+ }
+
+ match &tokens[..tokens.len() - 1] {
+ [time, "*", nick, content..] => {
+ return Some(Ok(Event {
+ ty: Type::Action {
+ from: nick.to_owned().into(),
+ content: rejoin(content, &split_tokens[3..]),
+ },
+ time: parse_time(&self.context, time),
+ channel: self.context.channel.clone().map(Into::into),
+ }))
+ }
+ [time, "***", old, "is", "now", "known", "as", new] => {
+ return Some(Ok(Event {
+ ty: Type::Nick {
+ old_nick: old.to_owned().into(),
+ new_nick: new.to_owned().into(),
+ },
+ time: parse_time(&self.context, time),
+ channel: self.context.channel.clone().map(Into::into),
+ }))
+ }
+ [time, "***", nick, "sets", "mode:", mode, masks..] => {
+ return Some(Ok(Event {
+ ty: Type::Mode {
+ nick: Some(nick.to_owned().into()),
+ mode: mode.to_owned().into(),
+ masks: rejoin(&masks, &split_tokens[6..]).to_owned().into(),
+ },
+ time: parse_time(&self.context, time),
+ channel: self.context.channel.clone().map(Into::into),
+ }))
+ }
+ [time, "***", "Joins:", nick, host] => {
+ return Some(Ok(Event {
+ ty: Type::Join {
+ nick: nick.to_owned().into(),
+ mask: Some(strip_one(host).into()),
+ },
+ time: parse_time(&self.context, time),
+ channel: self.context.channel.clone().map(Into::into),
+ }))
+ }
+ [time, "***", "Parts:", nick, host, reason..] => {
+ return Some(Ok(Event {
+ ty: Type::Part {
+ nick: nick.to_owned().into(),
+ mask: Some(strip_one(host).into()),
+ reason: Some(strip_one(&rejoin(reason, &split_tokens[5..])).into()),
+ },
+ time: parse_time(&self.context, time),
+ channel: self.context.channel.clone().map(Into::into),
+ }))
+ }
+ [time, "***", "Quits:", nick, host, reason..] => {
+ return Some(Ok(Event {
+ ty: Type::Quit {
+ nick: nick.to_owned().into(),
+ mask: Some(strip_one(host).into()),
+ reason: Some(strip_one(&rejoin(reason, &split_tokens[5..])).into()),
+ },
+ time: parse_time(&self.context, time),
+ channel: self.context.channel.clone().map(Into::into),
+ }))
+ }
+ [time, "***", nick, "changes", "topic", "to", topic..] => {
+ return Some(Ok(Event {
+ ty: Type::TopicChange {
+ nick: Some(nick.to_owned().into()),
+ new_topic: strip_one(&rejoin(topic, &split_tokens[6..])).into(),
+ },
+ time: parse_time(&self.context, time),
+ channel: self.context.channel.clone().map(Into::into),
+ }))
+ }
+ [time, nick, content..] if nick.starts_with('<') && nick.ends_with('>') => {
+ return Some(Ok(Event {
+ ty: Type::Msg {
+ from: strip_one(nick).into(),
+ content: rejoin(content, &split_tokens[2..]),
+ },
+ time: parse_time(&self.context, time),
+ channel: self.context.channel.clone().map(Into::into),
+ }))
+ }
+ _ => (),
+ }
+ }
+ }
+}
+
+impl Decode for Energymech {
+ fn decode<'a>(&'a mut self,
+ context: &'a Context,
+ input: &'a mut BufRead)
+ -> Box<Iterator<Item = ilc_base::Result<Event<'a>>> + 'a> {
+ Box::new(Iter {
+ context: context,
+ input: input,
+ buffer: Vec::new(),
+ })
+ }
+}
+
+impl Encode for Energymech {
+ fn encode<'a>(&'a self,
+ context: &'a Context,
+ mut output: &'a mut Write,
+ event: &'a Event)
+ -> ilc_base::Result<()> {
+ match event {
+ &Event { ty: Type::Msg { ref from, ref content }, ref time, .. } => {
+ try!(writeln!(&mut output,
+ "[{}] <{}> {}",
+ time.with_format(&context.timezone, TIME_FORMAT),
+ from,
+ content))
+ }
+ &Event { ty: Type::Action { ref from, ref content }, ref time, .. } => {
+ try!(writeln!(&mut output,
+ "[{}] * {} {}",
+ time.with_format(&context.timezone, TIME_FORMAT),
+ from,
+ content))
+ }
+ &Event { ty: Type::Nick { ref old_nick, ref new_nick }, ref time, .. } => {
+ try!(writeln!(&mut output,
+ "[{}] *** {} is now known as {}",
+ time.with_format(&context.timezone, TIME_FORMAT),
+ old_nick,
+ new_nick))
+ }
+ &Event { ty: Type::Mode { ref nick, ref mode, ref masks }, ref time, .. } => {
+ try!(writeln!(&mut output,
+ "[{}] *** {} sets mode: {} {}",
+ time.with_format(&context.timezone, TIME_FORMAT),
+ nick.as_ref().expect("Nickname not present, but required."),
+ mode,
+ masks))
+ }
+ &Event { ty: Type::Join { ref nick, ref mask }, ref time, .. } => {
+ try!(writeln!(&mut output,
+ "[{}] *** Joins: {} ({})",
+ time.with_format(&context.timezone, TIME_FORMAT),
+ nick,
+ mask.as_ref().expect("Mask not present, but required.")))
+ }
+ &Event { ty: Type::Part { ref nick, ref mask, ref reason }, ref time, .. } => {
+ try!(writeln!(&mut output,
+ "[{}] *** Parts: {} ({}) ({})",
+ time.with_format(&context.timezone, TIME_FORMAT),
+ nick,
+ mask.as_ref().expect("Mask not present, but required."),
+ reason.as_ref().unwrap_or(&Cow::Borrowed(""))))
+ }
+ &Event { ty: Type::Quit { ref nick, ref mask, ref reason }, ref time, .. } => {
+ try!(writeln!(&mut output,
+ "[{}] *** Quits: {} ({}) ({})",
+ time.with_format(&context.timezone, TIME_FORMAT),
+ nick,
+ mask.as_ref().expect("Mask not present, but required."),
+ reason.as_ref().expect("Reason not present, but required.")))
+ }
+ &Event { ty: Type::TopicChange { ref nick, ref new_topic }, ref time, .. } => {
+ try!(writeln!(&mut output,
+ "[{}] *** {} changes topic to '{}'",
+ time.with_format(&context.timezone, TIME_FORMAT),
+ nick.as_ref().expect("Nick not present, but required."),
+ new_topic))
+ }
+ _ => (),
+ }
+ Ok(())
+ }
+}
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