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Use [*0] instead of #e, and support [*] in addition to *.

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* src/ltlparse/ltlscan.ll: Recognize [*] as *, and use
[*0] instead of #e for the empty word.
* src/ltlast/binop.cc, src/ltlast/constant.cc,
src/ltlast/multop.cc, src/ltlast/multop.hh, src/ltlast/unop.cc,
src/ltlast/unop.hh, src/ltltest/consterm.test,
src/ltltest/equals.test: Adjust all occurrences of #e to [*0].
* src/tgbatest/ltl2tgba.test: Also use [*].
This commit is contained in:
Alexandre Duret-Lutz 2010-03-09 16:08:38 +01:00
parent 4e7233d9fa
commit 8b8633de8c
10 changed files with 41 additions and 42 deletions
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12
src/ltlast/unop.hh
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@ -57,8 +57,8 @@ namespace spot
/// The following trivial simplifications are performed
/// automatically (the left expression is rewritten as the right
/// expression):
/// - 0* = #e
/// - #e* = #e
/// - 0* = [*0]
/// - [*0]* = [*0]
/// - Exp** = Exp*
/// - FF(Exp) = F(Exp)
/// - GG(Exp) = G(Exp)
@ -66,17 +66,17 @@ namespace spot
/// - G(0) = 0
/// - F(1) = 1
/// - G(1) = 1
/// - F(#e) = 1
/// - G(#e) = 1
/// - F([*0]) = 1
/// - G([*0]) = 1
/// - !1 = 0
/// - !0 = 1
/// - !!Exp = Exp
/// - !Closure(Exp) = NegClosure(Exp)
/// - !NegClosure(Exp) = Closure(Exp)
/// - Closure(#e) = 1
/// - Closure([*0]) = 1
/// - Closure(1) = 1
/// - Closure(0) = 0
/// - NegClosure(#e) = 0
/// - NegClosure([*0]) = 0
/// - NegClosure(1) = 0
/// - NegClosure(0) = 1
///