%{
#include "system.h"
+#include "quotearg.h"
#include "error.h"
#include "getargs.h"
#include "files.h"
-int skel_lex PARAMS ((void));
-static int yylineno = 1;
-static char *yyoutname = NULL;
+
+int skel_lex (void);
+
%}
%%
- /* This is an approximation, but we don't need more. */
-^"#output \""[^\"]+\"\n {
- yytext[yyleng - 2] = '\0';
- XFREE (yyoutname);
- yyoutname = xstrdup (yytext + strlen ("#output \""));
- yyout = xfopen (yyoutname, "w");
- yylineno = 1;
- }
-
-"@<:@" fputc ('[', yyout);
-"@:>@" fputc (']', yyout);
-
-"__oline__" fprintf (yyout, "%d", yylineno+1);
-"__ofile__" fprintf (yyout, "%s", yyoutname);
-[^@_\n]+ ECHO;
-\n+ yylineno += yyleng; ECHO;
-. ECHO;
-
-<<EOF>> xfclose (yyout); free (yyoutname); return EOF;
+
+%{
+ int lineno IF_LINT (= 0);
+ char *outname = NULL;
+%}
+
+"@output ".*\n {
+ char const *filename = yytext + sizeof "@output " - 1;
+ yytext[yyleng - 1] = '\0';
+
+ if (*filename == '@')
+ {
+ if (strcmp (filename, "@output_header_name@") == 0)
+ filename = spec_defines_file;
+ else if (strcmp (filename, "@output_parser_name@") == 0)
+ filename = parser_file_name;
+ else
+ abort ();
+ }
+
+ XFREE (outname);
+ outname = xstrdup (filename);
+ yyout = xfopen (outname, "w");
+ lineno = 1;
+}
+
+"@@" fputc ('@', yyout);
+"@{" fputc ('[', yyout);
+"@}" fputc (']', yyout);
+
+"@oline@" fprintf (yyout, "%d", lineno);
+"@ofile@" fputs (quotearg_style (c_quoting_style, outname), yyout);
+
+"@" abort ();
+\n lineno++; ECHO;
+. ECHO;
+
+<<EOF>> xfclose (yyout); free (outname); return EOF;
%%
/*------------------------.