saugns v0.4.1. Wave type overhaul. More line types, 'R' modes.
Language changes:
* Signal generator types. Add 'R' mode 'm' flags
'h' (half-shape waveform, for sawtooth-like waves) and
'z' (zig-zag flip, adds jaggedness with randomness).
* Wave types. Rework into collection of 'sin',
3 x 3 complementary types, and 2 extras.
- Add 'par' and 'mto' –- with 'saw', all-harmonics trio.
- Add 'ean', 'cat', and 'eto' –- even-harmonics trio.
- Rename 'ahs' to 'spa' (sine parabola),
adjust phase offset to match other wave types.
- Rename 'hrs' to 'hsi' (half-rectified sine),
adjust phase offset to match other wave types.
- Remove 'ssr', little-used all-harmonics wave type.
- Make 'saw' decreasing instead of increasing to match
other types; flip amplitude or frequency for increasing.
* Line types.
- Add 'sqe' (square polynomial envelope),
a softer alternative to 'xpe'.
- Add 'cub' (cubic polynomial segment),
with steep ends and a flat middle.
* Frequencies as notes.
- Change tuning system to 12TET, adding a new 'S f.s'
toggle with the previous justly intoned scale as the
other option ('j' value).
- Don't treat 'Cf4' as belonging to the octave above 'C4'
(2011 behavior), instead change default octave for 'Cf'
to 5 when using key 'C'.
- Add key-changing option 'S f.k', for handling of default
and relative octave numbers (and rotating the microtonal
small letter scale).
* Variable syntax. Allow an optional letter for parameter
namespace for an expression after numerical "=",
whitespace or a math symbol between it and math
value/ID. Used to allow named constants for a paramater,
for channel, frequency as note, or phase.
* Nesting syntax. Re-add undocumented generic '<...>',
useful for wrapping around use of 'S'. (Removed v0.3.12.)
Old scripts using 'Wssr' will no longer work as expected;
if that wave type is wanted, it could be re-added later.
Most other old scripts will produce equivalent results after
adjusting 'saw' uses, and adjusting phase 'p' for and
renaming the old 'hrs' and 'ahs'.