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MuPDF is a free and open-source software framework written in C that implements a PDF, XPS, and EPUB parsing and rendering engine. It is used primarily to render pages into bitmaps , but also provides support for other operations such as searching and listing the table of contents and hyperlinks.
Zathura is a free, plugin-based document viewer. Plugins are available for PDF (via poppler or MuPDF), PostScript and DjVu. It was written to be lightweight and controlled with vi-like keybindings. Zathura's customizability makes it well-liked by many Linux users. [4]
Sumatra PDF is a free and open-source document viewer that supports many document formats including: Portable Document Format (PDF), Microsoft Compiled HTML Help (CHM), DjVu, EPUB, FictionBook (FB2), MOBI, PRC, Open XML Paper Specification (OpenXPS, OXPS, XPS), and Comic Book Archive file (CB7, CBR, CBT, CBZ). [3]
PDF-XChange Viewer (now superseded by the PDF-XChange Editor) is a freemium PDF reader for Microsoft Windows. It supports saving PDF forms and importing or exporting form data in FDF/XFDF format. Since version 2.5, there has been partial support for XFA, and exporting form data in XML Data Package (XDP) or XML format.
The script at Module:LuaCall has been written to accept any set of named parameters somename=value, for each one storing the string value in the variable with the name somename, and then allowing you to use these variables as parameters for any function available in Lua. The script then returns only the first value returned by the function (Lua ...
Core uses Lua for user scripts. [4] CRYENGINE uses Lua for user scripts. [5] Custom applications for the Creative Technology Zen X-Fi2 portable media player can be created in Lua. Damn Small Linux uses Lua to provide desktop-friendly interfaces for command-line utilities without sacrificing much disk space.
Scribunto Lua reference manual; Programming in Lua; Introduction to Lua patterns; About regex. Lua "patterns" are based on Regex (Patterns are a reduced set of regex). Help:Lua metamodules: Lua in Wikipedia has several meta-modules available that can make core functions easily available.
Finds the size of a key/value pair table (associative array). For example, for {foo = 'foo', bar = 'bar'}, size will return 2. The function will also work on arrays, but for arrays it is more efficient to use the # operator. Note that to find the size, this function uses the pairs function to iterate through all of the keys.