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Get rid of bunop::Equal and bunop::Goto.

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* src/ltlast/bunop.hh, src/ltlast/bunop.cc, src/ltlvisit/randomltl.cc,
src/ltlvisit/simplify.cc, src/ltlvisit/tostring.cc,
src/tgbaalgos/ltl2tgba_fm.cc: Remove all traces of these two
operators since they are not handled like sugar.
* doc/tl/tl.tex: Adjust documentation to reflect the fact that these
two operators are sugar.
This commit is contained in:
Alexandre Duret-Lutz 2012-04-15 00:13:42 +02:00
parent 210723e30c
commit abaf102746
7 changed files with 38 additions and 272 deletions
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13
src/ltlast/bunop.hh
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@ -37,7 +37,7 @@ namespace spot
class bunop : public ref_formula
{
public:
enum type { Star, Equal, Goto };
enum type { Star };
static const unsigned unbounded = -1U;
@ -51,17 +51,6 @@ namespace spot
/// - [*0][*min..max] = [*0]
/// - Exp[*0] = [*0]
/// - Exp[*i..j][*k..l] = Exp[*ik..jl] if i*(k+1)<=jk+1.
/// - 0[=0..max] = 1[*]
/// - 0[=min..max] = 0 if min > 0
/// - 1[=0] = [*0]
/// - 1[=min..max] = 1[*min..max]
/// - Exp[=0..] = [*]
/// - Exp[=0] = (!Exp)[*]
/// - 0[->0..max] = [*0]
/// - 0[->min..max] = 0 if min>0
/// - 1[->0] = [*0]
/// - 1[->min..max] = 1[*min..max]
/// - Exp[->0] = [*0]
///
/// These rewriting rules imply that it is not possible to build
/// an LTL formula object that is SYNTACTICALLY equal to one of