Free text processing software for linux

phppdflib is a class written in php that presents an easy to use API for generating PDF files dynamically.
Main features:
- Its freely licensed under the GNU GPL.
- Since its written in php, it doesnt require you to recompile or reconfigure your web server in any way
- Since its written in php, its platform independent. It will run on any system that supports php, such as Windows, Linux, Macintosh, and BSD.
- Its specifically designed to allow easy programming for text processing applications (such as reporting)

Libunicode offers low-level Unicode (UTF-16) text processing functionality,
which can be divided into three categories:

- Character handling
- String handling
- Charsets handling

Libunicode uses ISO/IEC 10646-defined UTF-16 encoding for storing and minipulating all character entities. It will supports other encoding standards (e.g., UTF-8, ISO 8859-x, etc.) for input and output only.

Libunicode bases, where applicable, on "Single Unix Specification, Version 2(R)" (susv2) as API and semantics reference. susv2 is the unification and superset of de jure POSIX and ANSI C (run-time library part) and de facto BSD standards. This means that, if you know standard character and string handling functions, you can readily use libunicode; and, if you have apllication using standard character/string processing facilities, you may with minimal troubles make it Unicode-aware.

Also, dont let word "Unix" in standard name confuse you. Susv2, as same as POSIX, is standard for *Open* operating systems, where MS Windows, MacOs, etc. fit. Such name was choosen by OpenGroup, maintainer of susv2, to unite and defend market sectors actively attacked by Microsoft with its "decommodizing" tactics. Libunicode is bright example of opposite approach, offering crossplatform portability and comptability for Unix and Win32 systems. (*)

(*) Opinions presented in the paragraph above are solely opinion of documentation author and should not be considered as reflecting real state of the things.

Libunicode defines new type, Uchar, which can handle any non-surrogate UTF-16 character without space overhead.

Library offer two APIs, one being precise remapping of susv2 functions, and one offering slightly higher-level API, with automatic memory management fully controlled by user.

Functions of 1st API (fully standard-compliant, the one you probably will use) uses u_ prefix, e.g. standard

char *strchr(const char *s, char c);

becomes

Uchar *u_strchr(const Uchar *s, Uchar c);

Functions of 2nd API use uni_ prefix. They are conceived to be used in special environments, for example, in Apache webserver modules. Most functions has completely identical u_ and uni_ implementation, but following have differring from standard argument structure and semantics:

uni_strcat
uni_strncat
uni_strdup
uni_strndup
uni_strcpy
uni_strncpy

You should consult library reference for their full description.

Docutils is an open-source text processing system for processing plaintext documentation into useful formats, such as HTML or LaTeX.

Docutils project includes reStructuredText, the easy to read, easy to use, what-you-see-is-what-you-get plaintext markup language.

RMagick is an interface between the Ruby programming language and the GraphicsMagick and ImageMagick image processing libraries.

GIMP ASCII Load/Save Plugin package is a set of identical plugins Save 2 ASCII, and ASCII 2 Image, which make saving (loading) images to (from) ASCII text.

GIMP ASCII Load/Save Plugin is very useful if you are using GNU Octave & GIMP together for Image processing. These plugins are distributed under GNU GPL, which you may modify and redistribute.

ASCII 2

Functionally this script tries to create an Image from a text-file that had been processed with the Octave or anything else.

LIMITATIONS: No support for multiple-layers or alpha.

USAGE: Choose a given ASCII file which you want to visualize, and with a knowledge of its column size & row size type those in and select gray/color option, then press ok and wait. You must see your matrix visualized on GIMP.

Save 2 ASCII

Functionally this script tries to save the Image into a text-file for processing with the Octave or anything else.

LIMITATIONS; Cannot save layers.

USAGE: Choose an image, and select if you want it saved as a ASCII file in gray/color mode (1bit-per-pixel(bpp) or 3bpp), and press ok. A new file will be created in your $HOME directory by default, or the directory where you started GIMP from. You can optionally override this by specifying the full path in filename field.

Epos is a universal text-to-speech engine. Epos is a language independent rule-driven Text-to-Speech (TTS) system primarily designed to serve as a research tool. Epos is (or tries to be) independent of the language processed, linguistic description method, and computing environment.
The text being processed by Epos is internally stored in a multi-level data structure suitable for the application of transformational rules. Every phonetic unit (or an approximation of one) is represented by a single node in the structure. The nodes are organized into layers corresponding to linguistic levels of description, such that a unit of level n can list its immediate constituents, that is units of level n-1. Every layer has a symbolic name, which is used to refer to it in the rules.
Main features:
- Czech and Slovak text to speech synthesis configuration
- LPC and time domain speech synthesizers
- Prosody modelling driven by rules, prosody models and artificial neural networks
- All languange dependencies are defined in the configuration files, as opposed to the source code
- Documentation in English included in the distribution

Text::EtText::HTML2EtText is a Perl module to convert from HTML to the EtText editable-text format.

SYNOPSIS

my $t = new Text::EtText::HTML2EtText;
print $t->html2text ($html);
or
my $t = new Text::EtText::HTML2EtText;
print $t->html2text (); # from STDIN

ethtml2text will convert a HTML file into the EtText editable-text format, for use with webmake or ettext2html.