Allow leading underscore in sketch filenames #1955
Merged
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Motivation
The Arduino Sketch Specification defines the allowed format of sketch folder names and sketch code filenames. Arduino IDE enforces compliance with the specification in order to ensure sketches created with Arduino IDE can be used with any other Arduino development tool.
The Arduino Sketch Specification is being changed to allow a leading underscore in sketch folder names and sketch code filenames:
arduino/arduino-cli#2105
Change description
Update Arduino IDE's sketch name validation according to the specification change.
Reviewer checklist