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(Torturing the Scanner): Add tests that @oline@,

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__oline__, #output, $@, and @{ do not have unintended meanings.
This commit is contained in:
Paul Eggert
2002-11-12 07:28:25 +00:00
parent e9683cfd3d
commit 5b7f88c7f2
1 changed files with 8 additions and 2 deletions
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10
tests/input.at
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@@ -151,13 +151,17 @@ static int yylex (void);
%%
/* Exercise M4 quoting: '@:>@@:>@', @<:@, 1. */
exp: '@<:@' '\1' '\x000000000000000000000000000000000000000000000000002'
exp: '@<:@' '\1' two '$' '@' '{' oline output
{
/* Exercise quotes in braces. */
char tmp[] = "@<:@%c@:>@,\n";
printf (tmp, $1);
}
;
two: '\x000000000000000000000000000000000000000000000000000000000000000000002';
oline: '@' 'o' 'l' 'i' 'n' 'e' '@' '_' '_' 'o' 'l' 'i' 'n' 'e' '_' '_';
output: '#' 'o' 'u' 't' 'p' 'u' 't' ' ';
%%
/* Exercise M4 quoting: '@:>@@:>@', @<:@, 2. */
@@ -172,7 +176,9 @@ value_t_as_yystype (value_t val)
static int
yylex (void)
{
static const char *input = "@<:@\1\2";
static const char *input = "@<:@\1\2$@{@oline@__@&t@oline__\
#output "; /* "
*/
yylval = value_t_as_yystype (*input);
return *input++;
}