]AT_YYLEX_PROTOTYPE[
{
- static int init = 1;
int c;
-
- if (init)
- {
- init = 0;
-]AT_LOCATION_IF([
- AT_LOC_LAST_COLUMN = 1;
- AT_LOC_LAST_LINE = 1;
-])[
- }
-
/* Skip current token, then white spaces. */
do
{
{
semantic_value ival;
};
+%printer { ]AT_SKEL_CC_IF([[yyoutput << $$]],
+ [[fprintf (yyoutput, "%d", $$)]])[; } <ival>;
%code provides
{
FILE *input;
static int power (int base, int exponent);
-]AT_SKEL_CC_IF(,
-[static void yyerror (AT_YYERROR_ARG_LOC_IF([AT_YYLTYPE *llocp, ])
- AT_PARAM_IF([semantic_value *result, int *count, ])
- const char *s
- );])[
+]AT_YYERROR_DECLARE[
]AT_YYLEX_DECLARE_EXTERN[
}
-]AT_SKEL_CC_IF([AT_LOCATION_TYPE_IF([], [[
-/* The lalr1.cc skeleton, for backward compatibility, defines
- a constructor for position that initializes the filename. The
- glr.cc skeleton does not (and in fact cannot: location/position
- are stored in a union, from which objects with constructors are
- excluded in C++). */
-%initial-action {
- @$.initialize ();
-}
-]])])[
+]AT_SKEL_CC_IF([AT_LOCATION_TYPE_IF([[
+%initial-action
+{
+ @$.first.l = @$.first.c = 1;
+ @$.last = @$.first;
+}]])])[
/* Bison Declarations */
%token CALC_EOF 0 "end of input"
o << '-' << s.last.c - 1;
return o;
}
-]])
-AT_YYERROR_DEFINE],
-[/* A C error reporting function. */
-static void
-yyerror (AT_YYERROR_ARG_LOC_IF([AT_YYLTYPE *llocp, ])
- AT_PARAM_IF([semantic_value *result, int *count, ])
- const char *s)
-{
-AT_PARAM_IF([(void) result; (void) count;])
-AT_YYERROR_SEES_LOC_IF([
- fprintf (stderr, "%d.%d",
- AT_LOC_FIRST_LINE, AT_LOC_FIRST_COLUMN);
- if (AT_LOC_FIRST_LINE != AT_LOC_LAST_LINE)
- fprintf (stderr, "-%d.%d",
- AT_LOC_LAST_LINE, AT_LOC_LAST_COLUMN - 1);
- else if (AT_LOC_FIRST_COLUMN != AT_LOC_LAST_COLUMN - 1)
- fprintf (stderr, "-%d",
- AT_LOC_LAST_COLUMN - 1);
- fprintf (stderr, ": ");])
- fprintf (stderr, "%s\n", s);
-}])[
+]])])[
+]AT_YYERROR_DEFINE[
]AT_DEFINES_IF([],
[AT_CALC_LEX
AT_CALC_MAIN])])
# Make sure we did not introduce bad spaces. Checked here because all
# the skeletons are (or should be) exercized here.
m4_define([AT_CHECK_SPACES],
-[AT_CHECK([perl -ne '
+[AT_CHECK([$PERL -ne '
chomp;
print "$.: {$_}\n"
if (# No starting/ending empty lines.
[842])
# Some syntax errors.
-_AT_CHECK_CALC_ERROR([$1], [1], [0 0], [15],
+_AT_CHECK_CALC_ERROR([$1], [1], [1 2], [15],
[1.3: syntax error, unexpected number])
_AT_CHECK_CALC_ERROR([$1], [1], [1//2], [20],
[1.3: syntax error, unexpected '/', expecting number or '-' or '(' or '!'])
# The same, but this time exercising explicitly triggered syntax errors.
# POSIX says the lookahead causing the error should not be discarded.
-_AT_CHECK_CALC_ERROR([$1], [0], [(!) + (0 0) = 1], [102],
+_AT_CHECK_CALC_ERROR([$1], [0], [(!) + (1 2) = 1], [102],
[1.10: syntax error, unexpected number
calc: error: 2222 != 1])
-_AT_CHECK_CALC_ERROR([$1], [0], [(- *) + (0 0) = 1], [113],
+_AT_CHECK_CALC_ERROR([$1], [0], [(- *) + (1 2) = 1], [113],
[1.4: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
1.12: syntax error, unexpected number
calc: error: 2222 != 1])