In preferences files, platform-specific versions can be indicated by a .linux, .windows or .macos suffix on the key name. Previously, these keys were loaded as normal and then afterwards, all keys were scanned after loading them and any platform-specific versions replaced the regular ones. However, this means that these platform-specific versions get an unexpected form of priority. Normally, when a single key is set twice, the latter overrides the first. However, the platform-specific values could override the regular versions, even when the regular version occurs later in the file. This problem was particularly confusing when using the new platform.local.txt: a regular preference in platform.local.txt did not override a platform-specific preference in platform.txt. This commit changes behaviour to process these suffixes directly as they are read from the preference files. If a suffix for the current platform is found, the line is processed as if the suffix was not present. If a suffix for another platform is found, the line is ignored altogether. This can slightly change the way preferences files are parsed, but as long as platform-specific preferences are defined after the corresponding regular preferences, the behaviour should be the same.
Arduino
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Arduino is an open-source physical computing platform based on a simple i/o board and a development environment that implements the Processing/Wiring language. Arduino can be used to develop stand-alone interactive objects or can be connected to software on your computer (e.g. Flash, Processing, MaxMSP). The boards can be assembled by hand or purchased preassembled; the open-source IDE can be downloaded for free.
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For more information, see the website at: http://www.arduino.cc/ or the forums at: http://arduino.cc/forum/
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To report a bug in the software or to request a simple enhancement go to: http://github.com/arduino/Arduino/issues
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More complex requests and technical discussion should go on the Arduino Developers mailing list: https://groups.google.com/a/arduino.cc/forum/#!forum/developers
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If you're interested in modifying or extending the Arduino software, we strongly suggest discussing your ideas on the Developers mailing list before starting to work on them. That way you can coordinate with the Arduino Team and others, giving your work a higher chance of being integrated into the official release https://groups.google.com/a/arduino.cc/forum/#!forum/developers
Installation
Detailed instructions are in reference/Guide_Windows.html and reference/Guide_MacOSX.html. For Linux, see the Arduino playground: http://www.arduino.cc/playground/Learning/Linux
Credits
Arduino is an open source project, supported by many.
The Arduino team is composed of Massimo Banzi, David Cuartielles, Tom Igoe, Gianluca Martino, Daniela Antonietti, and David A. Mellis.
Arduino uses the GNU avr-gcc toolchain, avrdude, avr-libc, and code from Processing and Wiring.
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