Free currency converter software for linux

After the converter I developed ages ago for Dashboard, I needed something to help me grasp quickly the prices in foreign currencies displayed on the web site I visited.

I therefore started to develop my first greasemonkey script to have Firefox do that automatically.

Yahoo! Finance Currency Converter is not the first one around, I particularly like that one, but for the exercise, I wanted to develop mine using Yahoo! Finance exchange rates.

RIR to DNS converter is a tool to convert Regional Internet Registry data to a DNS country lookup zone. You can use it to build your own DNS zone for looking up country codes from IP addresses.

It uses data directly from RIPE, ARIN, APNIC, LACNIC, and AFRINIC. The data can be updated on a schedule of your choosing.

The input data comes from:

ftp://ftp.afrinic.net/pub/stats/afrinic/delegated-afrinic-latest
ftp://ftp.apnic.net/pub/stats/apnic/delegated-apnic-latest
ftp://ftp.arin.net/pub/stats/arin/delegated-arin-latest
ftp://ftp.ripe.net/pub/stats/ripencc/delegated-ripencc-latest
ftp://ftp.lacnic.net/pub/stats/lacnic/delegated-lacnic-latest

The input data format is described in:

http://www.apnic.net/db/rir-stats-format.html

The output is a BIND 9 zone file that can be used to look up country codes
in a similar fashion to in-addr.arpa. For example, to find out what country
203.30.47.58 is:

host 58.47.30.203.rir.example.com
58.47.30.203.rir.example.com has address 127.0.65.86

where 65 and 85 are ASCII for A and U, which means 203.30.47.58 is
in Australia (AU).

HOW TO USE IT

Just feed it the above delegated- -latest files into stdin and it will
spit out the zone file to stdout. The zone file will only have the IP addresses,
so you could $INCLUDE it into a zone file that contains NS records, SOA, $ORIGIN,
etc.

WHY USE IT

You dont need the resolution of MaxMinds GeoIP database, but you do want
something that is free and you want it kept up to date on a schedule that
you decide.

You could use this to block or tag email based on countries, block or redirect
visitors to your website based on end-user country, and so on. Be very
careful about blocking mail this way, though, as you may block legitimate
email. Instead of blocking outright, use it in a SpamAssassin rule to add
something to the spam level, based on where the email comes from.

HOW IT WORKS

The RIR files contain ranges of IP addresses, and indicate what CC each range is allocated to. At the simplest level, rir2dns just sorts the ranges then iterates
through the IPs in each range and generates a reverse-dns-style A record that
represents the country code.

HOW IT WORKS - IN DETAIL

Rather than iterate through each IP address, the program tries to skip through
entire classes at a time (256 IPs, 65536 IPs, etc). Rather than iterate
through each IP, the loop iterates through classes or IP ranges (whichever are
smaller at the loop control), using control-breaks to accummulate neighbouring
ranges where possible so that entire classes that are in the same country dont
generate huge numbers of records.

Firstly, IPs are considered to be 4-digit numbers, but in base-256. In other
words, each octet is dealt with as if it were a single base-256 digit. This
turns out to be convenient because optimisations of large chunks of IP space can be done by looking for places where least-significant base-256 digits are zero.

Next, IP ranges are broken down into the following sub-ranges:

Optional individual IP addresses (ie: 4 octets)
Optional A-class ranges (ie: 3 octets)
Optional B-class ranges (ie: 2 octets)
Optional C-class ranges (ie: 1 octet)
Optional B-class ranges (ie: 2 octets)
Optional A-class ranges (ie: 3 octets)
Optional individual IP addresses (ie: 4 octets)

Considering that there is a pattern here, Im sure theres an elegant way to
handle breaking this down into two loops (one reducing the octets and one
increasing the octets), but I cant be bothered, so Ill break it down into
seven loops. Kind of hard-coded, but at least its simple.

For ease of processing, the IP addresses are actually converted to 32-bit numbers, then back again. This simplifies mathematics and looping through ranges.

Thats pretty much it, really...

Note that currently there are about 80,000 RIR records between all five
registries. This takes about 35 seconds on a 2.4GHz P4 to process, and
generates a 26MB file with around 3/4 million lines (RRs). This causes BIND
to use about 100MB or so of memory, and on a slow machine will probably cause it to take too long to reply, while it searches the zone. That size zone can
take a minute or two to load, which is quite a while.

Basic algorithm:

Read & process RIR data:

Read RIR ranges
Sort RIR ranges by start IP address
Glue together contiguous ranges of the same country

For each range

Generate the IPs at the start of the range

Generate the A-classes at the start of the range

Generate the B-classes at the start of the range

Generate the C-classes in the middle of the range

Generate the B-classes at the end of the range

Generate the A-classes at the end of the range

Generate the IPs at the end of the range

Finance::Currency::Convert::XE is a Perl module for currency conversion module.

SYNOPSIS

use Finance::Currency::Convert::XE;
my $obj = Finance::Currency::Convert::XE->new()
|| die "Failed to create objectn" ;

my $value = $obj->convert(
source => GBP,
target => EUR,
value => 123.45,
format => text
) || die "Could not convert: " . $obj->error . "n";

my @currencies = $obj->currencies;

Currency conversion module using XE.coms Universal Currency Converter (tm) site.

Multimedia Converter project provides graphical environment to take full advantage some of the possibilities the ffmpeg and MPlayer.

So help to Convert between different media formats.

YaHP Converter is a java library that can convert an HTML document into a PDF document.
YaHP is licensed under the LGPL (GNU).
Method Summary
void convertToPdf(java.lang.String content, IHtmlToPdfTransformer.PageSize size, java.util.List hf, java.lang.String urlForBase, java.io.OutputStream out)
Convert the document in content in a PDF file.
void convertToPdf(java.net.URL url, IHtmlToPdfTransformer.PageSize size, java.util.List hf, java.io.OutputStream out)
Convert the document pointed by url in a PDF file.
private java.net.URL copyToTemp(java.net.URL url)
Copy the file pointed to url in the temp directory
private void init()
initialize the classloader, and the transforme.
Enhancements:
- A NPE which occurred if the FOP_TTF_FONT_PATH property is not set was fixed.

PSP Video Converter project is a simple graphical frontend to ffmpeg to allow you to easily convert your videos to PSP compatibile format. Works for me, thought I may share.

Note: Created with Kommander 1.3, not sure if it works with earlier Kommander.

Note: There is no error checking for now, so make sure you have a working ffmpeg with necessary codecs installed.

Note: Looks like some PSPs cant open h264 videos encoded with ffmpeg.

Audio Format Converter is a an Amarok script that allows you to convert the audio format of the tracks in the playlist. The script takes a snapshot of the current playlist. Once the conversion has started, you can go back to using amaroK normally.

Supported files for both input and output include .flac, .ogg, .mp3, .mpc, .m4a, and .wav. Additionally, .wma, .ra, and are supported for input. (See below for the required packages.)

I dont know how to do anything with metatags from .wma or .ra. All I know is tags will get transferred to the output file if and only if the tags show up in the amaroK playlist. If they arent there, I suggest converting the files, then using a real tag editor like Easy Tag to put them in to the converted files.

This has only been tested on amaroK 1.2.4, but it should work on any amaroK>=1.2

The original files are NOT deleted. If the output file will overwrite an existing file, a dialog will appear to ask you whether to go ahead and overwrite or to skip the track. If you try to convert a file into the format its already in, a dialog will ask you how to handle this situation.

Depending on the number of tracks and the speed of your computer, this can take a long time to run. With each track, a passive popup will let you know what track its processing. At any time, you can stop the script by clicking stop in the amaroK script GUI.

Perl Audio Converter (PAC) is a tool for converting multiple audio types from one format to another. It supports MP2, MP3, Ogg Vorbis, FLAC, Shorten, Monkey Audio, FAAC (AAC/M4A/MP4), Musepack (MPC), Wavpack (WV), OptimFrog (OFR/OFS), TTA, LPAC, Kexis (KXS), AIFF, AC3, Lossless Audio (LA), AU, SND, RAW, VOC, SMP, RealAudio (RA/RAM), WAV, and WMA.
It can also convert audio from the following video formats/extensions: RM, RV, ASF, DivX, MPG, MKV, MPEG, AVI, MOV, OGM, QT, VCD, VOB, and WMV. A CD ripping function with CDDB support, batch and playlist conversion, tag preservation for most supported formats, independent tag reading/writing, and extensions for Konqueror and amaroK is also provided.
Enhancements:
- Added: MP4::Info dependency IO::String to pacpl-install
- Updated: License GPLv3
- Bug Fix: Directory conversions. pacpl was claiming the directory was empty and prompting to use the --recursive option...Thanks to John Meyer for the report.