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* HACKING, Makefile.am, configure.ac, m4/gccwarn.m4,

Browse source 
src/Makefile.am, src/ltlast/Makefile.am, src/ltlast/allnodes.hh,
src/ltlast/atomic_prop.cc, src/ltlast/atomic_prop.hh,
src/ltlast/binop.cc, src/ltlast/binop.hh, src/ltlast/constant.cc,
src/ltlast/constant.hh, src/ltlast/formulae.hh,
src/ltlast/multop.cc, src/ltlast/multop.hh, src/ltlast/predecl.hh,
src/ltlast/unop.cc, src/ltlast/unop.hh, src/ltlast/visitor.hh,
src/ltlparse/Makefile.am, src/ltlparse/ltlparse.yy,
src/ltlparse/ltlscan.ll, src/ltlparse/parsedecl.hh,
src/ltlparse/public.hh, src/ltlvisit/Makefile.am,
src/ltlvisit/dotty.cc, src/ltlvisit/dotty.hh,
src/ltlvisit/dump.cc, src/ltlvisit/dump.hh,
src/ltlvisit/rewrite.cc, src/ltlvisit/rewrite.hh,
src/ltltest/Makefile.am, src/ltltest/defs.in, src/ltltest/readltl.cc,
src/ltltest/parse.test, src/ltltest/parseerr.test,
src/misc/Makefile.am, src/misc/const_sel.hh: New files.
This commit is contained in:
Alexandre Duret-Lutz 2003-04-15 10:55:16 +00:00
parent ababb9ff93
commit f0a8d0aeb3
46 changed files with 1818 additions and 0 deletions
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71
src/ltlparse/ltlscan.ll Normal file
View file

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%option noyywrap
%{
#include <string>
#include "parsedecl.hh"
/* Hack Flex so we read from a string instead of reading from a file. */
# define YY_INPUT(buf, result, max_size) \
do { \
result = (max_size < to_parse_size) ? max_size : to_parse_size; \
memcpy(buf, to_parse, result); \
to_parse_size -= result; \
to_parse += result; \
} while (0);
#define YY_USER_ACTION \
yylloc->columns (yyleng);
static const char *to_parse = 0;
static int to_parse_size = 0;
void
flex_set_buffer(const char *buf)
{
to_parse = buf;
to_parse_size = strlen(to_parse);
}
%}
%%
%{
yylloc->step ();
%}
"(" return PAR_OPEN;
")" return PAR_CLOSE;
"!" return OP_NOT;
"|"|"+" return OP_OR;
"&"|"."|"*" return OP_AND;
"^" return OP_XOR;
"=>"|"->" return OP_IMPLIES;
"<=>"|"<->" return OP_EQUIV;
/* <>, [], and () are used in Spin. */
"F"|"<>" return OP_F;
"G"|"[]" return OP_G;
"U" return OP_U;
"R"|"V" return OP_R;
"X"|"()" return OP_X;
"1"|"true" return CONST_TRUE;
"0"|"false" return CONST_FALSE;
[ \t\n]+ yylloc->step (); /* discard whitespace */
/* An Atomic propisition cannot start with the letter
used by a unary operator (F,G,X), unless this
letter is followed by a digit in which case we assume
it's an ATOMIC_PROP (even though F0 could be seen as Ffalse). */
[a-zA-EH-WYZ_][a-zA-Z0-9_]* |
[FGX][0-9_][a-zA-Z0-9_]* {
yylval->str = new std::string(yytext);
return ATOMIC_PROP;
}
. return *yytext;
<<EOF>> return END_OF_INPUT;