A ruby parser for TeX equations. It parses equations to postfix (reverse polish) notation and can build abstract syntax tree (AST). Also it can render images via latex. Requres modern ruby 1.9.x because of using advanced oniguruma regex engine

Converts an HTML document to a LaTeX version with reasonably sensible markup.

Verku provides authors a free, ruby-based production toolchain for self-published paper and electronic books using the LaTeX document preparation system.

The docgenerator-gem create documents with export feature as LaTeX, HTML, Creole (a common wiki markup, see http://www.wikicreole.org ), conTeXt (only rudimentory), plain text (not very good supported) and

Convert hwp script to latex

FatTable is a gem that treats tables as a data type. It provides methods for constructing tables from a variety of sources, building them row-by-row, extracting rows, columns, and cells, and performing aggregate operations on columns. It also provides as set of SQL-esque methods for manipulating table objects: select for filtering by columns or for creating new columns, where for filtering by rows, order_by for sorting rows, distinct for eliminating duplicate rows, group_by for aggregating multiple rows into single rows and applying column aggregate methods to ungrouped columns, a collection of join methods for combining tables, and more. Furthermore, FatTable provides methods for formatting tables and producing output that targets various output media: text, ANSI terminals, ruby data structures, LaTeX tables, Emacs org-mode tables, and more. The formatting methods can specify cell formatting in a way that is uniform across all the output methods and can also decorate the output with any number of footers, including group footers. FatTable applies formatting directives to the extent they makes sense for the output medium and treats other formatting directives as no-ops. FatTable can be used to perform operations on data that are naturally best conceived of as tables, which in my experience is quite often. It can also serve as a foundation for providing reporting functions where flexibility about the output medium can be quite useful. Finally FatTable can be used within Emacs org-mode files in code blocks targeting the Ruby language. Org mode tables are presented to a ruby code block as an array of arrays, so FatTable can read them in with its .from_aoa constructor. A FatTable table can output as an array of arrays with its .to_aoa output function and will be rendered in an org-mode buffer as an org-table, ready for processing by other code blocks.

Adds a liquid tag you can use to do server-side rendering of latex math using KaTeX

deplate is a ruby based tool for converting documents written in an unobtrusive, wiki-like markup to LaTeX, HTML, "HTML slides", or docbook. It supports page templates, embedded LaTeX code, footnotes, citations, bibliographies, automatic generation of an index, table of contents etc. It can be used to create web pages and (via LaTeX or Docbook) high-quality printouts from the same source. deplate probably isn't suited for highly technical documents or documents that require a sophisticated graphical layout. For other purposes it should work fine. deplate aims to be modular and easily extensible. It is the accompanying converter for the Vim viki plugin. In the family of wiki engines, the choice of markup originated from the emacs-wiki.

Re:VIEW is a digital publishing system for books and ebooks. It supports InDesign, EPUB and LaTeX. This gem is experimental version with PEG grammar

Build LaTeX documents.

Latexpdf is a renderer for rails which compiles Tex files with ERB to a PDF using xelatex by default so that it supports Unicode.

A Ruby gem to create a skeleton for a LaTeX document.

Book boilerplate to generate books as EPUB, MOBI, and PDF from simple Markdown text files. Or from HTML. Or from LaTeX. Or mixed.

trex is script simplifying the compilation of latex files by creating proper human-readable error output with repeating patterns. Unlike the original latex output which is oververbosified.

Create PDFs for download from your posts, using latex flexible and comfortable.

ULMUL is an original Ultra Lightweight MarkUp Language. You can write TeX-style equations in ULMUL texts. The ULMUL texts can be converted into HTML5+MathML with ulmul2html5 command, into HTML5+MathJax with ulmul2mathjax and into LaTeX with ulmul2latex. You can also generate Slidy presentations. Its library ulmul.rb is written in Ruby.

Simple command-line spell checker for LaTeX documents

Now you can parse your LaTeX formules with Katex and let the client-side worry only with stylesheets.

A tool for creating LaTex files from ERb templates and processing them into PDF format.

Run it after you compile your LaTeX document