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Recognize Goal's syntax for Boolean operators.

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* src/ltlparse/ltlscan.ll: Recognize ~, -->, and <--> operators
from Goal, to ease the use of formulas provided by the Goal team.
* src/ltltest/equals.test: Use these once, just to be on the
safe side.
This commit is contained in:
Alexandre Duret-Lutz 2011-02-03 21:47:15 +01:00
parent 2fe5b3fb62
commit 3278844c2a
3 changed files with 19 additions and 8 deletions
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12
src/ltlparse/ltlscan.ll
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@ -1,4 +1,4 @@
/* Copyright (C) 2010, Laboratoire de Recherche et Développement de
/* Copyright (C) 2010, 2011, Laboratoire de Recherche et Développement de
** l'Epita (LRDE).
** Copyright (C) 2003, 2004 Laboratoire d'Informatique de Paris 6 (LIP6),
** département Systèmes Répartis Coopératifs (SRC), Université Pierre
@ -72,17 +72,17 @@ flex_set_buffer(const char* buf)
"0"|[fF][aA][lL][sS][eE] BEGIN(0); return token::CONST_FALSE;
"!" BEGIN(0); return token::OP_NOT;
/* ~ comes from Goal, ! from everybody else */
"!"|"~" BEGIN(0); return token::OP_NOT;
/* & and | come from Spin. && and || from LTL2BA.
/\, \/, and xor are from LBTT.
*/
--> and <--> come from Goal. */
"||"|"|"|"+"|"\\/" BEGIN(0); return token::OP_OR;
"&&"|"&"|"."|"/\\" BEGIN(0); return token::OP_AND;
"^"|"xor" BEGIN(0); return token::OP_XOR;
"=>"|"->" BEGIN(0); return token::OP_IMPLIES;
"<=>"|"<->" BEGIN(0); return token::OP_EQUIV;
"=>"|"->"|"-->" BEGIN(0); return token::OP_IMPLIES;
"<=>"|"<->"|"<-->" BEGIN(0); return token::OP_EQUIV;
/* <>, [], and () are used in Spin. */
"F"|"<>" BEGIN(0); return token::OP_F;