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Fourth Annual USENIX Tcl/Tk Workshop, 1996
Backtracking and Constraints in Tcl-BC
Dayton Clark and David M. Arnow
Dept. of Computer and Information Science
Brooklyn College
Abstract
Tcl is extended to include backtracking controls and a facility for
asserting constraints. This increases its flexibility in several
domains and opens the possibility for its use in constraint-based
logic programming applications and, conversely, applying
constraint-based logic programming techniques to more traditional
script language domains. The backtracking extensions are written
entirely in Tcl itself, a fact which speaks well for Tcl's own
extensibility.
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