From 9f5dd9dad6b13476bab2c6eb3c6528f8ad49311a Mon Sep 17 00:00:00 2001 From: Till Höppner Date: Thu, 25 Feb 2016 06:48:03 +0100 Subject: Refactor... everything. --- formats/energymech/src/lib.rs | 262 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 262 insertions(+) create mode 100644 formats/energymech/src/lib.rs (limited to 'formats/energymech/src/lib.rs') diff --git a/formats/energymech/src/lib.rs b/formats/energymech/src/lib.rs new file mode 100644 index 0000000..16795cf --- /dev/null +++ b/formats/energymech/src/lib.rs @@ -0,0 +1,262 @@ +// 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, +} + +impl<'a> Iterator for Iter<'a> { + type Item = ilc_base::Result>; + fn next(&mut self) -> Option>> { + fn parse_time(context: &Context, time: &str) -> Time { + let h = time[1..3].parse::().unwrap(); + let m = time[4..6].parse::().unwrap(); + let s = time[7..9].parse::().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 = Vec::new(); + let tokens = buffer.split(|c: char| { + if c.is_whitespace() { + split_tokens.push(c); + true + } else { + false + } + }) + .collect::>(); + + 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>> + '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(()) + } +} -- cgit v1.2.3