kak-lsp is a Language Server Protocol client for Kakoune implemented in Rust.

XNEdit is a fast and classic X11 text editor, based on NEdit, with full unicode support and antialiased text rendering.

Parinfer is a plugin for Kakoune, Vim, Neovim and Emacs that infers parentheses and indentation. This library can be called from other editors that can load dynamic libraries.

Ed is a line-oriented text editor: rather than offering an overview of a document, ed performs editing one line at a time. It can be executed both interactively and via shell scripts. Its method of command input allows complex tasks to be performed in an automated way. GNU ed offers several extensions over the standard utility.

GNU TeXmacs is a text editing platform which is specialized for scientists. It is ideal for editing structured documents with different types of content. It has robust support for mathematical formulas and plots. It can also act as an interface to external mathematical programs such as R and Octave. TeXmacs is completely extensible via Guile.

This package provides a modeless text editor with menu bar. It supports syntax highlighting, regular expressions, configurable menus, keybindings, autocomplete and unlimited undo. It can pipe a marked block of text through any command line filter. It can also open very large binary files. It was originally developed on the Amiga 3000T.

QEmacs (for Quick Emacs) is a very small but powerful editor. It has features that even big editors lack:

• Full screen editor with an Emacs look and feel with all Emacs common features: multi-buffer, multi-window, command mode, universal argument, keyboard macros, config file with C-like syntax, minibuffer with completion and history.

• Can edit files of hundreds of Megabytes without being slow by using a highly optimized internal representation and by mmaping the file.

• Full Unicode support, including multi charset handling (8859-x, UTF8, SJIS, EUC-JP, ...) and bidirectional editing respecting the Unicode bidi algorithm. Arabic and Indic scripts handling (in progress).

• WYSIWYG HTML/XML/CSS2 mode graphical editing. Also supports Lynx like rendering on VT100 terminals.

• WYSIWYG DocBook mode based on XML/CSS2 renderer.

• C mode: coloring with immediate update. Emacs like auto-indent.

• Shell mode: colorized VT100 emulation so that your shell work exactly as you expect. Compile mode with next/prev error.

• Input methods for most languages, including Chinese (input methods come from the Yudit editor).

• Hexadecimal editing mode with insertion and block commands. Unicode hexa editing is also supported.

• Works on any VT100 terminals without termcap. UTF8 VT100 support included with double width glyphs.

• X11 support. Support multiple proportional fonts at the same time (as XEmacs). X Input methods supported. Xft extension supported for anti aliased font display.

• Small! Full version (including HTML/XML/CSS2/DocBook rendering and all charsets): 200KB big. Basic version (without bidir/unicode scripts/input/X11/C/Shell/HTML/Dired): 49KB.

parinfer-rust-emacs is an Emacs-centric fork of parinfer-rust, itself an implementation of Shaun Lebron’s Parinfer. This builds a shared library intended to be loaded by the emacs-parinfer-rust-mode Emacs plugin, though a standalone binary is built also.

Libconfig is a simple library for manipulating structured configuration files. This file format is more compact and more readable than XML. And unlike XML, it is type-aware, so it is not necessary to do string parsing in application code.

txt2tags is a document generator. It reads a text file with minimal markup and converts it to multiple formats.

Open Chinese Convert (OpenCC) converts between Traditional Chinese and Simplified Chinese, supporting character-level conversion, phrase-level conversion, variant conversion, and regional idioms among Mainland China, Taiwan, and Hong-Kong.

The drm_tools package contains the following commands:

accudate

An extended version of the "date" program that has sub-second accuracy.

binformat

Format complex binary data into text.

binload

Load data into a binary file using simple commands from the input.

binorder

Sort, merge, search, retrieve or generate test data consisting of fixed size binary records.

binreplace

Find or find/replace in binary files.

binsplit

Split test data consisting of fixed size binary records into one or more output streams.

chardiff

Find changes between two files at the character level. Unlike "diff", it lists just the characters that differ, so if the 40,000th character is different only that one character will be shown, not the entire line.

columnadd

Add columns of integers, decimals, and/or times.

datasniffer

A utility for formatting binary data dumps.

dmath

Double precision interactive command line math calculator.

extract

Extract and emit data from text files based on character or token position.

execinput

A utility that reads from STDIN and executes each line as a command in a sub-process.

indexed_text

A utility for rapid retrieval of text by line numbers, in any order, from a text file.

mdump

Format binary data.

msgqueue

Create message queues and send/receive messages.

mbin

dtmbout

Multiple buffer in and out. Used for buffering a lot of data between a slow device and a fast device. Mostly for buffering streaming tape drives for use with slower network connections, so that streaming is maintained as much as possible to minimize wear on the tape device.

pockmark

Corrupt data streams - useful for testing error correction and data recovery.

tarsieve

Filter, list, or split a tar file.

This package provides converters for various bibliography formats (e.g. Bibtex, RIS, etc.) using a common XML intermediate.

utf8proc is a small C library that provides Unicode normalization, case-folding, and other operations for data in the UTF-8 encoding.

GoAWK is a POSIX-compatible version of AWK that also has a CSV mode for reading and writing CSV and TSV files.

cobib is a command-line based bibliography management tool. It uses a plain-text database, a location-independent library, and features git integration, command-line support, and a curses-based TUI.

pfff is a tool for calculating a compact digital fingerprint of a file by sampling randomly from the file instead of reading it in full. Consequently, the computation has a flat performance characteristic, correlated with data variation rather than file size. pfff can be as reliable as existing hashing techniques, with provably negligible risk of collisions.

libgtextutils is a text utilities library used by the fastx toolkit from the Hannon Lab.

The two programs are useful for generating test data, for inspecting binary files, and for interfacing programs that generate textual output to programs that require binary input and conversely. They can also be useful when it is desired to reformat numbers.

• ascii2binary reads input consisting of ascii or hexadecimal representation numbers separated by whitespace and produces as output the binary equivalents. The type and precision of the binary output is selected using command line flags.

• binary2ascii reads input consisting of binary numbers and converts them to their ascii or hexadecimal representation. Command line flags specify the type and size of the binary numbers and provide control over the format of the output. Unsigned integers may be written out in binary, octal, decimal, or hexadecimal.

  Signed integers may be written out only in binary or decimal. Floating point numbers may be written out only decimal, either in standard or scientific notation. (If you want to examine the binary representation of floating point numbers, just treat the input as a sequence of unsigned characters.)

catdoc extracts text from MS-Word files, trying to preserve as many special printable characters as possible. It supports everything up to Word-97. Also supported are MS Write documents and RTF files.

catdoc does not preserve complex word formatting, but it can translate some non-ASCII characters into TeX escape codes. It's goal is to extract plain text and allow you to read it and, probably, reformat with TeX, according to TeXnical rules.

This package also provides xls2csv, which extracts data from Excel spreadsheets and outputs it in comma-separated-value format, and catppt, which extracts data from PowerPoint presentations.

Useful tools when working with Unicode files when one doesn't know the writing system, doesn't have the necessary font, needs to inspect invisible characters, needs to find out whether characters have been combined or in what order they occur, or needs statistics on which characters occur.

• uniname defaults to printing the character offset of each character, its byte offset, its hex code value, its encoding, the glyph itself, and its name. It may also be used to validate UTF-8 input.

• unidesc reports the character ranges to which different portions of the text belong. It can also be used to identify Unicode encodings (e.g. UTF-16be) flagged by magic numbers.

• unihist generates a histogram of the characters in its input.

• ExplicateUTF8 is intended for debugging or for learning about Unicode. It determines and explains the validity of a sequence of bytes as a UTF8 encoding.

• utf8lookup provides a handy way to look up Unicode characters from the command line.

• unireverse reverse each line of UTF-8 input character-by-character.

Vale is a fully extensible linter that focuses on your own writing style by making use of rules in individual YAML files. It is syntax-aware on markup languages such as HTML, Markdown, Asciidoc, and reStructuredText. The community around it also has a list of style guides implemented with Vale in their styles repo.

cobib is a command-line based bibliography management tool. It uses a plain-text database, a location-independent library, and features git integration, command-line support, and a curses-based TUI.

dbacl is a fast Bayesian text and email classifier. It builds a variety of language models using maximum entropy (minimum divergence) principles, and these can then be used to categorize input data automatically among multiple categories.