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relabel: implement relabeling of Boolean subexpressions.

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* src/ltlast/multop.cc, src/ltlast/multop.hh (multop::boolean_operands,
multop::boolean_count): New methods.
* src/ltlvisit/relabel.cc, src/ltlvisit/relabel.hh
(relabel): Take an optional relabeling_map as parameter.
(relabel_bse): New.
* src/ltltest/ltlrel.test, src/ltltest/ltlrel.cc: New files.
* src/ltltest/Makefile.am: Add them.
* src/bin/ltlfilt.cc: Add option --relabel-bool.
* src/ltltest/ltlfilt.test: Test it.
* NEWS: Mention it.
* doc/org/ltlfilt.org: Illustrate it.
This commit is contained in:
Alexandre Duret-Lutz 2013-09-27 16:23:35 +02:00
parent 2efe52fab0
commit 87b65b9bce
11 changed files with 869 additions and 74 deletions
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17
src/ltlast/multop.hh
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@ -138,6 +138,23 @@ namespace spot
/// return a new formula <code>a|b|d</code>.
const formula* all_but(unsigned n) const;
/// \brief return the number of Boolean operands in the binop.
///
/// For instance if \c f <code>a|b|Xc|Gd</code>, this
/// returns 2.
unsigned boolean_count() const;
/// \brief return the Boolean part of the binop.
///
/// For instance if \c f <code>a|b|Xc|Gd</code>, this
/// returns <code>a|b</code>. Return 0 if there is no
/// Boolean operand.
///
/// If \a width is not null, it is filled with the number
/// of Boolean operands extracted (i.e., the result
/// of boolean_count())
const formula* boolean_operands(unsigned* width = 0) const;
/// Get the type of this operator.
type op() const;
/// Get the type of this operator, as a string.