interscript 0.2.0

Rust runtime for Interscript ISC maps, executing the parsanol .parg grammar
Documentation 
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# interscript-rs semantics corpus (original minimal maps authored for
# this crate; ISC format, parseable by the embedded grammar/isc.parg).
# tests/semantics.rs runs every map here through the runtime and
# requires 100% embedded-test pass. Expectations are hand-reasoned and
# cross-checked against interscript-ruby (see the report).

system "T:rs-boundary:1" {
  stage main {
    sequence {
      # after boundary: lookahead — fires only at word-ending position.
      sub { from "у" to "ŭ" after boundary }
      # before boundary: lookbehind — fires only after a word boundary.
      sub { from "k" to "q" before boundary }
    }
  }
  tests {
    "у k" -> "ŭ q"
    "kу" -> "qŭ"
  }
}