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tl: add support for X[n], F[n:m] and G[n:m]

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* NEWS, doc/tl/tl.tex, doc/tl/tl.bib: Document these new operators.
* spot/parsetl/parsetl.yy, spot/parsetl/scantl.ll: Parse those.
* spot/tl/formula.cc, spot/tl/formula.hh: Add constructors.
* spot/gen/formulas.cc: Use it.
* tests/core/sugar.test: New file.
* tests/Makefile.am: Add it.
This commit is contained in:
Alexandre Duret-Lutz 2018-07-05 17:29:25 +02:00
parent 2616ea7c80
commit e7aa334a71
10 changed files with 364 additions and 12 deletions
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14
NEWS
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@ -1,6 +1,18 @@
New in spot 2.6.0.dev (not yet released)
Nothing yet.
- The LTL parser learned syntactic sugar for nested ranges of X
using the X[n], F[n:m], and G[n:m] syntax of TSLF. (These
correspond to the next!, next_e!, and next_a! operators of PSL,
but we do not support those under these names currently.)
X[6]a = XXXXXXa
F[2:4]a = XX(a | X(a | Xa))
G[2:4]a = XX(a & X(a & Xa))
The corresponding constructors (for C++ and Python) are
formula::X(unsigned, formula)
formula::F(unsigned, unsigned, formula)
formula::G(unsigned, unsigned, formula)
New in spot 2.6 (2018-07-04)