implement SAI calculator

[westram]

ARB needs a way to calculate SAIs from other SAIs

recipes for calculation

1. translate 1 SAI → new SAI
   • simple transform filter: specifies multiple pairs of
     • a set of input chars +
     • wanted resulting character
   • ACI (1 char in → 1 char out)
2. combine NUM SAIs → new SAI (for NUM>1):
   • combine binary SAIs using simple AND, OR, XOR
     • for each input SAI, define which characters count as true or as false (or define for all input SAIs)
     • for output SAI define characters to use for true and false
   • ACI expression applied to each column of all input SAIs
     input: NUM streams containing one char each
     output: result char

recipe-management

• provide a way to store a recipe, i.e.
  • target SAI
  • source SAI(s) + data needed for specific recipe type
  • custom (name of recipe + description)
• show list of stored recipes
  • select one recipe + click 'Recalculate'
    → SAI gets re-calculated
  • admin interface (delete, copy, ..)

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related: #733, #761

[westram]

by [18311]