The example script now can show a spinfinity or a fade_in behaviour. This is
just to see how easy it is to implement current plugins. In the case of fade_in
it is around 23 lines of script code
Matches the use in C as "for (first, condition, last)" where first is executed
once, last is executed at the end of each iteration (even when continue is
executed) and condition is tested at the start of every cycle.
The scripts can now attach themselves to the following callbacks: refresh,
boot_progress, root_mounted, keyboard_input, update_status, display_normal,
display_password and display_question.
Treats "/*" and "*/" as block comment markers. Block comments may be nested.
There is a bug where if a comment or a string is not terminated before the end
of a file, the scanner deadlocks. Need to add a way or reporting scanner
errors to the parser.
These are currently hard coded to '//' and '#'. The code is there to return
them to the caller but currently they are thrown away.
Should add a skip_comments option and allow customisable markers.
An image rotate operation creates a new image with the same dimensions but with
the contents rotated by an angle around the centre of the image. Also added a
script object to float function to allow this.
Allows execution of unary operations: Pre/postfix inc/decrement, logical
negation and unary plus/minus.
The writebacks of increment/decrements happen during the execution of the
expression, unlike C where they are executed after the line if executed. This
is the case simply because it is simpler to execute this way.
This is an initial support for the scripted plugin. There are _many_ FIXMEs
and the whole code is reather unstable. The formatting is completely incorrect
and will be changed soon. There are scripts which are converted using a perl
to an C embeddable string.
