(exprtk.hpp is not included, get it from my exprtk fork in the branch
internal_data_functions)
available keys:
f- note's frequency. available only in the output expressions
t- time in seconds. in the Waves (W1,W2,W3) it's in the range [0,1)
key- the note's keyboard key. available only in the output expressions.
v- the note's velocity (divided by 255.0 so it is in the range [0,1]).
available only in the output expressions.
rel- gives 0 while the key is holded, and 1 after the key release.
available only in the output expressions.
A1,A2,A3- general purpose knobs (you can control them with the
automations). available only in the output expressions.
W1,W2,W3- precalculated wave forms. can be also load from file. you can
use them only in the output expressions
available functions:
cent(x)- gives pow(2,x/1200)
rand()- random number generator. in range [-1,1). each call gives other
value.
randv(i)- random vector (with pseudo infinite integer cells). the values
are in range [-1,1). it's stays consistent only across the note
playback. so each note playback will get other vector (even on the same
key).
sinew- sine wave with period of 1.
saww- saw wave with period of 1.
squarew- square wave with period of 1.
trianglew- triangle wave with period of 1.
expw- exponent wave with period of 1.
expnw- another exponent wave with period of 1.
moogw- moog wave with period of 1.
moogsaww- moog-saw wave with period of 1.
you can use * % ^ / + - pow sin log pi etc.

Added Release transition knob that control the "rel" variable. (the
duration of transit from 0 to 1)
Fixed some problems in the displays. (update display when changing
A1,A2,A3, clear display with invalid expression.

Changed the callbacks in exprfront.cpp to be templated.
Added help.
Added ExprTk.hpp.
some bug fixes (inf issues).
Added integrate function.

…oject https:/LMMS/lmms

Added the "e" euler's constant.

Added "trel" (time since release) variable.
The integrate function can now have unlimited usage.
Added selective interpolation per wave.
Improved a little the random vector function.
Some other improvements, code cleaning, etc...

move clearGraph definition into Graph.cpp.
fixed compilation errors. (oops..)

added semitone function, added sample-rate variable

achieve performace gain.

exprtk.hpp is patched under the name exprtk.patched.hpp ...

added last function that gives last calculated samples.
moved ExprSynth to be with ExprFront for performance reasons.

…dded .gitignore file..

added new variable to the parser (tempo)

Added exprtk_disable_return_statement macro for disabling return statements and associated exceptions at the source code level.

…n each platform.

also added exprtk.hpp as a dependency for the patch command.
Updated the exprtk diff file.

…tallation.

Updated multi-sub expression operator to return final sub-expression type.
Updates to exprtk_disable_return_statement macro for disabling return statements and associated exceptions at the source code level.

-fexceptions flag, so patch file is no longer needed.