GNU Aspell is a spell checker designed to eventually replace Ispell. It can either be used as a library or as an independent spell checker. Its main feature is that it does a superior job of suggesting possible replacements for a misspelled word than just about any other spell checker out there for the English language. Unlike Ispell, Aspell can also easily check documents in UTF-8 without having to use a special dictionary. Aspell will also do its best to respect the current locale setting. Other advantages over Ispell include support for using multiple dictionaries at once and intelligently handling personal dictionaries when more than one Aspell process is open at once.
Jerry's Music Review System generates an HTML page from a simple flat file containing the band name, album name, date purchased, and a review of the album. It arranges the information and cross-indexes on band name and album name. It also displays a list of the 10 most recently purchased albums. Examples can be found on the homepage.
logsurfer is a log checking/auditing tool similar to swatch and logcheck but with the capability of handling multi-line messages and dynamically adapting the ruleset. It is written in portable C, well documented, fast, and flexible. It works on any textfile or stdin, can be run at intervals or continuously, and has timeouts and resource limits.
Net::Z3950::SimpleServer is a Perl module which implements the server side of the Z39.50 (information retrieval) protocol. It hides the complexity of network exchanges, packet serialization, and session handling. You are required only to implement simple callbacks to support searching and record retrieval. It is the basis of the "Zoogle" project, which is a Z39.50 gateway to the Google web index.
Par is a paragraph reformatter, vaguely similar to the standard Unix fmt filter, but better. It uses a dynamic programming algorithm that produces better-looking line breaks than the greedy algorithm used by fmt. It can also deal correctly with a variety of quotation and comment conventions.
polcnv is designed to convert files between different encoding methods used for Polish texts. It can be also used to covert plain text documents in any language using supported character encoding methods. The program uses ISO-10646 UCS-4 (equivalent to Unicode UTF-32) as internal representation.
pstotext extracts text (in the ISO 8859-1 character set) from a PostScript or PDF (Portable Document Format) file. Thus, pstotext is similar to the ps2ascii program that comes with ghostscript. The output of pstotext is better than that of ps2ascii, because pstotext deals better with punctuation and ligatures.
tal aligns common characters at the ends of lines. This is especially useful for making long C macro definitions look nice or for repairing "broken" comment boxes. tal works on any kind of common ending, which it autodetects. Intended as, but not limited to being, a filter program ("plug-in") for text editors.