Move the various map* functions to C; add #'map-into. src/ChangeLog addition: 2010-01-31 Aidan Kehoe <kehoea@parhasard.net> Move #'mapcar*, #'mapcan, #'mapc, #'map, #'mapl, #'mapcon to C; extend #'mapvector, #'mapconcat, #'mapcar to support more SEQUENCES; have them all error with circular lists. * fns.c (Fsubseq): Call CHECK_SEQUENCE here; Flength can return from the debugger if it errors with a non-sequence, leading to a crash in Fsubseq if sequence really is *not* a sequence. (mapcarX): Rename mapcar1 to mapcarX; rework it comprehensively to take an optional lisp output argument, and a varying number of sequences. Special-case a single list argument, as we used to, saving its elements in the stack space for the results before calling FUNCTION, so FUNCTION can corrupt the list all it wants. dead_wrong_type_argument() in the other cases if we encounter a non-cons where we expected a cons. (Fmapconcat): Accept further SEQUENCES after separator here. Special-case the idiom (mapconcat 'identity SEQUENCE), don't even funcall. (FmapcarX): Rename this from Fmapcar. Accept optional SEQUENCES. (Fmapvector): Accept optional SEQUENCES. (Fmapcan, Fmapc, Fmap): Move these here from cl-extra.el. (Fmap_into): New function, as specified by Common Lisp. (maplist): New function, the guts of the implementation of Fmaplist and Fmapl. (Fmaplist, Fmapl, Fmapcon): Move these from cl-extra.el. (syms_of_fns): Add a few needed symbols here, for the type tests used by #'map. Add the new subrs, with aliases for #'mapc-internal and #'mapcar. * general-slots.h: Declare Qcoerce here, now it's used in both indent.c and fns.c * indent.c (syms_of_indent): Qcoerce is gone from here. * lisp.h: Add ARRAYP(), SEQUENCEP(), and the corresponding CHECK_* macros. Declare Fbit_vector, Fstring, FmapcarX, now other files need to use them. * data.c (Farrayp, Fsequencep): Use ARRAYP and SEQUENCEP, just added to lisp.h * buffer.c (Fbuffer_list): Now Fmapcar has been renamed FmapcarX and takes MANY arguments, update this function to reflect that. lisp/ChangeLog addition: 2010-01-31 Aidan Kehoe <kehoea@parhasard.net> * cl.el (mapcar*): Delete; this is now in fns.c. Use #'mapc, not #'mapc-internal in a couple of places. * cl-macs.el (mapc, mapcar*, map): Delete these compiler macros now the corresponding functions are in fns.c; there's no run-time advantage to the macros. * cl-extra.el (coerce): Extend the possible conversions here a little; it's not remotely comprehensive yet, though it does allow running slightly more Common Lisp code than previously. (cl-mapcar-many): Delete. (map, maplist, mapc, mapl, mapcan, mapcon): Move these to fns.c. * bytecomp.el (byte-compile-maybe-mapc): Use #'mapc itself, not #'mapc-internal, now the former is in C. (mapcar*): Use #'byte-compile-maybe-mapc as this function's byte-compile method, now a #'mapc that can take more than one sequence is in C. * obsolete.el (cl-mapc): Move this compatibility alias to this file. * update-elc.el (do-autoload-commands): Use #'mapc, not #'mapc-internal here.

/*
 * Copyright (c) 2000, Red Hat, Inc.
 *
 *     This program is free software; you can redistribute it and/or modify
 *     it under the terms of the GNU General Public License as published by
 *     the Free Software Foundation; either version 2 of the License, or
 *     (at your option) any later version.
 *
 *     A copy of the GNU General Public License can be found at
 *     http://www.gnu.org/
 *
 * Written by DJ Delorie <dj@cygnus.com>
 *
 */

/* see mkdir.h */

#include "win32.h"
#include <stdio.h>
#include "mkdir.h"

int
mkdir_p (int isadir, char *path)
{
  char saved_char, *slash = 0;
  char *c;
  DWORD d, gse;

  d = GetFileAttributes (path);
  if (d != 0xffffffff && d & FILE_ATTRIBUTE_DIRECTORY)
    return 0;

  if (isadir)
    {
      if (CreateDirectory (path, 0))
	return 0;
      gse = GetLastError ();
      if (gse != ERROR_PATH_NOT_FOUND && gse != ERROR_FILE_NOT_FOUND)
	{
	  if (gse == ERROR_ALREADY_EXISTS)
	    {
	      fprintf (stderr, "warning: deleting \"%s\" so I can make a directory there\n",
		       path);
	      if (DeleteFileA (path))
		return mkdir_p (isadir, path);
	    }
	  return 1;
	}
    }

  for (c=path; *c; c++)
    {
      if (*c == ':')
	slash = 0;
      if (*c == '/' || *c == '\\')
	slash = c;
    }

  if (!slash)
    return 0;

  saved_char = *slash;
  *slash = 0;
  if (mkdir_p (1, path))
    {
      *slash = saved_char;
      return 1;
    }
  *slash = saved_char;

  if (!isadir)
    return 0;

  return mkdir_p (isadir, path);
}