Prepare for radical source tree reorganization. zack/build-layout-experiment

All top-level files and directories are moved into a temporary storage
directory, REORG.TODO, except for files that will certainly still
exist in their current form at top level when we're done (COPYING,
COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which
are moved to the new directory OldChangeLogs, instead), and the
generated file INSTALL (which is just deleted; in the new order, there
will be no generated files checked into version control).

1 files changed, 102 insertions, 0 deletions

diff --git a/REORG.TODO/stdio-common/printf-prs.c b/REORG.TODO/stdio-common/printf-prs.c
new file mode 100644
index 0000000000..d63855612a
--- /dev/null
+++ b/REORG.TODO/stdio-common/printf-prs.c
@@ -0,0 +1,102 @@
+/* Copyright (C) 1991-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <stdio.h>
+#include <printf.h>
+#include <stdlib.h>
+#include <string.h>
+#include <wchar.h>
+#include <sys/param.h>
+
+#include "../locale/localeinfo.h"
+
+#ifndef COMPILE_WPRINTF
+# define CHAR_T		char
+# define UCHAR_T	unsigned char
+# define INT_T		int
+# define L_(Str)	Str
+# define ISDIGIT(Ch)	isdigit (Ch)
+# define ISASCII(Ch)	isascii (Ch)
+# define MBRLEN(Cp, L, St) __mbrlen (Cp, L, St)
+
+# define PUT(F, S, N)	_IO_sputn (F, S, N)
+# define PAD(Padchar)							      \
+  if (width > 0)							      \
+    done += _IO_padn (s, Padchar, width)
+#else
+# define vfprintf	vfwprintf
+# define CHAR_T		wchar_t
+# define UCHAR_T	uwchar_t
+# define INT_T		wint_t
+# define L_(Str)	L##Str
+# define ISDIGIT(Ch)	iswdigit (Ch)
+
+# define PUT(F, S, N)	_IO_sputn (F, S, N)
+# define PAD(Padchar)							      \
+  if (width > 0)							      \
+    done += _IO_wpadn (s, Padchar, width)
+#endif
+
+#define DONT_NEED_READ_INT
+#include "printf-parse.h"
+
+
+size_t
+parse_printf_format (const char *fmt, size_t n, int *argtypes)
+{
+  size_t nargs;			/* Number of arguments.  */
+  size_t max_ref_arg;		/* Highest index used in a positional arg.  */
+  struct printf_spec spec;
+  const unsigned char *f = (const unsigned char *) fmt;
+
+  nargs = 0;
+  max_ref_arg = 0;
+
+  /* Search for format specifications.  */
+  for (f = __find_specmb (f); *f != '\0'; f = spec.next_fmt)
+    {
+      /* Parse this spec.  */
+      nargs += __parse_one_specmb (f, nargs, &spec, &max_ref_arg);
+
+      /* If the width is determined by an argument this is an int.  */
+      if (spec.width_arg != -1 && (size_t) spec.width_arg < n)
+	argtypes[spec.width_arg] = PA_INT;
+
+      /* If the precision is determined by an argument this is an int.  */
+      if (spec.prec_arg != -1 && (size_t) spec.prec_arg < n)
+	argtypes[spec.prec_arg] = PA_INT;
+
+      if ((size_t) spec.data_arg < n)
+	switch (spec.ndata_args)
+	  {
+	  case 0:		/* No arguments.  */
+	    break;
+	  case 1:		/* One argument; we already have the type.  */
+	    argtypes[spec.data_arg] = spec.data_arg_type;
+	    break;
+	  default:
+	    /* We have more than one argument for this format spec.  We must
+               call the arginfo function again to determine all the types.  */
+	    (void) (*__printf_arginfo_table[spec.info.spec])
+	      (&spec.info, n - spec.data_arg, &argtypes[spec.data_arg],
+	       &spec.size);
+	    break;
+	  }
+    }
+
+  return MAX (nargs, max_ref_arg);
+}