PdfParser is a standalone PHP library that provides various tools for extracting data from PDF files. It loads and parses objects and headers, extracts meta data, and extracts text from ordered pages. It supports compressed PDF, MAC OS Roman charset encoding, hex and octal encoding in text sections, and is compliant with PSR-0 (autoloader) and PSR-1 (code styling). Currently, secured documents are not supported.
HC-SR04 Ultrasonic Arduino Library is specifically for the HC-SR04 ultrasonic sensor. It features timing, metric conversion, and standard deviation methods, plus a few support methods. It is written in C++ to conserve the namespace. The conversion formula can be easily modified to optimize the accuracy of conversion at different distances for inches and centimeters. Multiple buffers of different lengths can be created for determining standard deviation.
zlog is a reliable, efficient, thread safe, flexible, pure C logging library. It was written because there were no good C logging libraries along the lines of Logback for Java or log4cxx for C++. printf can work, but can not be easily redirected or reformatted, and syslog is slow and designed for system use. It provides a syslog model, log format customization, multiple output, safe run-time reconfiguration, high performance, user-defined log levels, safe log rotation, a log4j-style key-value map, in-built debugging, and no external dependencies.
Papyrus is a 2D C++ scenegraph (canvas) library that utilizes the cairo library to perform drawing operations. Similar canvas libraries are the Gnome Canvas, Diacanvas, and the QT Canvas. Numerous canvas primitives are available, including arcs, rectangles, polylines, and line markers. An optional companion library, Papyrusmm, provides a set of Gtkmm widgets which includes viewports (a canvas display widget similar to Gtk::DrawingArea) and other UI widgets related to drawing interfaces.
Zebra_Form is a PHP class that simplifies the process of creating and validating HTML forms. Its object-oriented structure promotes rapid HTML forms development and encourages developers to write clean and easily maintainable code. It frees the developers from the repetitive task of writing the code for validating forms by offering powerful built-in client-side and server-side validation. Zebra_Form has an integrated cross-site scripting prevention mechanism that automatically strips out potentially malicious code from the submitted data. It also prevents automated SPAM posts, out of the box and without relying on CAPTCHA by using honey pots. Output can be generated either automatically or manually through templates (basic PHP files). When generated automatically, the generated output has the same look and feel across all major browsers. It provides all the controls you’d expect in an HTML form and, additionally, date/time pickers, captcha, and AJAX-like file upload controls.