AT_SETUP([Torturing the Scanner])
-AT_DATA([input.y],
+AT_DATA_GRAMMAR([input.y],
[[%{
/* This is seen in GCC: a %{ and %} in middle of a comment. */
const char *foo = "So %{ and %} can be here too.";
-#ifdef __STDC__
+#if 0
+/* These examples test Bison while not stressing C compilers too much.
+ Many C compilers mishandle backslash-newlines, so this part of the
+ test is inside "#if 0". The comment and string are written so that
+ the "#endif" will be seen regardless of the C compiler bugs that we
+ know about, namely:
+
+ HP C (as of late 2002) mishandles *\[newline]\[newline]/ within a
+ comment.
+
+ The Apple Darwin compiler (as of late 2002) mishandles
+ \\[newline]' within a character constant.
+
+ */
+
/\
-* A comment with backslash-newlines in it. %{ %} *\
+* A comment with backslash-newlines in it. %} *\
\
/
+/* { Close the above comment, if the C compiler mishandled it. */
char str[] = "\\
" A string with backslash-newlines in it %{ %} \\
+\
"";
-char apostrophe = '\\
-\
-'\
-';
+char apostrophe = '\'';
#endif
#include <stdio.h>
%%
/* Exercise M4 quoting: '@:>@@:>@', @<:@, 1. */
-exp: '@<:@' '\1' '\x000000000000000000000000000000000000000000000000002'
+exp: '@<:@' '\1' two '$' '@' '{' oline output
{
/* Exercise quotes in braces. */
char tmp[] = "@<:@%c@:>@,\n";
printf (tmp, $1);
}
;
+
+two: '\x000000000000000000000000000000000000000000000000000000000000000000002';
+oline: '@' 'o' 'l' 'i' 'n' 'e' '@' '_' '_' 'o' 'l' 'i' 'n' 'e' '_' '_';
+output: '#' 'o' 'u' 't' 'p' 'u' 't' ' ';
%%
/* Exercise M4 quoting: '@:>@@:>@', @<:@, 2. */
static int
yylex (void)
{
- static const char *input = "@<:@\1\2";
+ static const char *input = "@<:@\1\2$@{@oline@__@&t@oline__\
+#output "; /* "
+ */
yylval = value_t_as_yystype (*input);
return *input++;
}
}
]])
+# Pacify Emacs'font-lock-mode: "
+
AT_DATA([main.c],
[[typedef int value_t;
#include "input.h"
]])
AT_CHECK([bison -d -v -o input.c input.y])
-AT_COMPILE([input], [input.c main.c])
+AT_COMPILE([input.o], [-c input.c])
+AT_COMPILE([main.o], [-c main.c])
+AT_COMPILE([input], [input.o main.o])
AT_PARSER_CHECK([./input], 0,
[[[@<:@],
]])