--- /dev/null
+;;; w32-common-fns.el --- Lisp routines for Windows and Cygwin-w32
+
+;; Copyright (C) 1994, 2001-2012 Free Software Foundation, Inc.
+
+;; This file is part of GNU Emacs.
+
+;; GNU Emacs 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 3 of the License, or
+;; (at your option) any later version.
+
+;; GNU Emacs 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 General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
+
+;;; Commentary:
+;;;
+;;; This file contains functions that are used by both native NT Emacs
+;;; and Cygwin Emacs compiled to use the native Windows widget
+;;; library.
+
+(defun w32-version ()
+ "Return the MS-Windows version numbers.
+The value is a list of three integers: the major and minor version
+numbers, and the build number."
+ (x-server-version))
+
+(defun w32-using-nt ()
+ "Return non-nil if running on a Windows NT descendant.
+That includes all Windows systems except for 9X/Me."
+ (getenv "SystemRoot"))
+
+(declare-function w32-get-clipboard-data "w32select.c")
+(declare-function w32-set-clipboard-data "w32select.c")
+(declare-function x-server-version "w32fns.c" (&optional display))
+
+;;; Fix interface to (X-specific) mouse.el
+(defun x-set-selection (type data)
+ "Make an X selection of type TYPE and value DATA.
+The argument TYPE (nil means `PRIMARY') says which selection, and
+DATA specifies the contents. TYPE must be a symbol. \(It can also
+be a string, which stands for the symbol with that name, but this
+is considered obsolete.) DATA may be a string, a symbol, an
+integer (or a cons of two integers or list of two integers).
+
+The selection may also be a cons of two markers pointing to the same buffer,
+or an overlay. In these cases, the selection is considered to be the text
+between the markers *at whatever time the selection is examined*.
+Thus, editing done in the buffer after you specify the selection
+can alter the effective value of the selection.
+
+The data may also be a vector of valid non-vector selection values.
+
+The return value is DATA.
+
+Interactively, this command sets the primary selection. Without
+prefix argument, it reads the selection in the minibuffer. With
+prefix argument, it uses the text of the region as the selection value.
+
+Note that on MS-Windows, primary and secondary selections set by Emacs
+are not available to other programs."
+ (put 'x-selections (or type 'PRIMARY) data))
+
+(defun x-get-selection (&optional type _data-type)
+ "Return the value of an X Windows selection.
+The argument TYPE (default `PRIMARY') says which selection,
+and the argument DATA-TYPE (default `STRING') says
+how to convert the data.
+
+TYPE may be any symbol \(but nil stands for `PRIMARY'). However,
+only a few symbols are commonly used. They conventionally have
+all upper-case names. The most often used ones, in addition to
+`PRIMARY', are `SECONDARY' and `CLIPBOARD'.
+
+DATA-TYPE is usually `STRING', but can also be one of the symbols
+in `selection-converter-alist', which see."
+ (get 'x-selections (or type 'PRIMARY)))
+
+;; x-selection-owner-p is used in simple.el
+(defun x-selection-owner-p (&optional type)
+ (and (memq type '(nil PRIMARY SECONDARY))
+ (get 'x-selections (or type 'PRIMARY))))
+
+;; The "Windows" keys on newer keyboards bring up the Start menu
+;; whether you want it or not - make Emacs ignore these keystrokes
+;; rather than beep.
+(global-set-key [lwindow] 'ignore)
+(global-set-key [rwindow] 'ignore)
+
+(defvar w32-charset-info-alist) ; w32font.c
+
+\f
+;;;; Selections
+
+;; We keep track of the last text selected here, so we can check the
+;; current selection against it, and avoid passing back our own text
+;; from x-selection-value.
+(defvar x-last-selected-text nil)
+
+(defun x-get-selection-value ()
+ "Return the value of the current selection.
+Consult the selection. Treat empty strings as if they were unset."
+ (if x-select-enable-clipboard
+ (let (text)
+ ;; Don't die if x-get-selection signals an error.
+ (condition-case c
+ (setq text (w32-get-clipboard-data))
+ (error (message "w32-get-clipboard-data:%s" c)))
+ (if (string= text "") (setq text nil))
+ (cond
+ ((not text) nil)
+ ((eq text x-last-selected-text) nil)
+ ((string= text x-last-selected-text)
+ ;; Record the newer string, so subsequent calls can use the 'eq' test.
+ (setq x-last-selected-text text)
+ nil)
+ (t
+ (setq x-last-selected-text text))))))
+\f
+(defalias 'x-selection-value 'x-get-selection-value)
+
+;; Arrange for the kill and yank functions to set and check the clipboard.
+(setq interprogram-cut-function 'x-select-text)
+(setq interprogram-paste-function 'x-get-selection-value)
+
+(provide 'w32-common-fns)
--- /dev/null
+/* Cygwin support routines.
+ Copyright (C) 2011 Free Software Foundation, Inc.
+
+This file is part of GNU Emacs.
+
+GNU Emacs 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 3 of the License, or
+(at your option) any later version.
+
+GNU Emacs 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 General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
+
+
+#include "cygw32.h"
+#include "character.h"
+#include "buffer.h"
+#include <unistd.h>
+#include <fcntl.h>
+static Lisp_Object Qutf_16_le;
+
+static Lisp_Object
+fchdir_unwind (Lisp_Object dir_fd)
+{
+ (void) fchdir (XFASTINT (dir_fd));
+ (void) close (XFASTINT (dir_fd));
+ return Qnil;
+}
+
+static void
+chdir_to_default_directory ()
+{
+ Lisp_Object new_cwd;
+ int old_cwd_fd = open (".", O_RDONLY | O_DIRECTORY);
+
+ if (old_cwd_fd == -1)
+ error ("could not open current directory: %s", strerror (errno));
+
+ record_unwind_protect (fchdir_unwind, make_number (old_cwd_fd));
+
+ new_cwd = Funhandled_file_name_directory (
+ Fexpand_file_name (build_string ("."), Qnil));
+ if (!STRINGP (new_cwd))
+ new_cwd = build_string ("/");
+
+ if (chdir (SDATA (ENCODE_FILE (new_cwd))))
+ error ("could not chdir: %s", strerror (errno));
+}
+
+static Lisp_Object
+conv_filename_to_w32_unicode (Lisp_Object in, int absolute_p)
+{
+ ssize_t converted_len;
+ Lisp_Object converted;
+ unsigned flags;
+ int count = SPECPDL_INDEX ();
+
+ chdir_to_default_directory ();
+
+ flags = CCP_POSIX_TO_WIN_W;
+ if (!absolute_p) {
+ flags |= CCP_RELATIVE;
+ }
+
+ in = ENCODE_FILE (in);
+
+ converted_len = cygwin_conv_path (flags, SDATA (in), NULL, 0);
+ if (converted_len < 2)
+ error ("cygwin_conv_path: %s", strerror (errno));
+
+ converted = make_uninit_string (converted_len - 1);
+ if (cygwin_conv_path (flags, SDATA (in),
+ SDATA (converted), converted_len))
+ error ("cygwin_conv_path: %s", strerror (errno));
+
+ return unbind_to (count, converted);
+}
+
+static Lisp_Object
+conv_filename_from_w32_unicode (const wchar_t* in, int absolute_p)
+{
+ ssize_t converted_len;
+ Lisp_Object converted;
+ unsigned flags;
+ int count = SPECPDL_INDEX ();
+
+ chdir_to_default_directory ();
+
+ flags = CCP_WIN_W_TO_POSIX;
+ if (!absolute_p) {
+ flags |= CCP_RELATIVE;
+ }
+
+ converted_len = cygwin_conv_path (flags, in, NULL, 0);
+ if (converted_len < 1)
+ error ("cygwin_conv_path: %s", strerror (errno));
+
+ converted = make_uninit_string (converted_len - 1 /*subtract terminator*/);
+ if (cygwin_conv_path (flags, in, SDATA (converted), converted_len))
+ error ("cygwin_conv_path: %s", strerror (errno));
+
+ return unbind_to (count, DECODE_FILE (converted));
+}
+
+Lisp_Object
+from_unicode (Lisp_Object str)
+{
+ CHECK_STRING (str);
+ if (!STRING_MULTIBYTE (str) &&
+ SBYTES (str) & 1)
+ {
+ str = Fsubstring (str, make_number (0), make_number (-1));
+ }
+
+ return code_convert_string_norecord (str, Qutf_16_le, 0);
+}
+
+wchar_t *
+to_unicode (Lisp_Object str, Lisp_Object *buf)
+{
+ *buf = code_convert_string_norecord (str, Qutf_16_le, 1);
+ /* We need to make a another copy (in addition to the one made by
+ code_convert_string_norecord) to ensure that the final string is
+ _doubly_ zero terminated --- that is, that the string is
+ terminated by two zero bytes and one utf-16le null character.
+ Because strings are already terminated with a single zero byte,
+ we just add one additional zero. */
+ str = make_uninit_string (SBYTES (*buf) + 1);
+ memcpy (SDATA (str), SDATA (*buf), SBYTES (*buf));
+ SDATA (str) [SBYTES (*buf)] = '\0';
+ *buf = str;
+ return WCSDATA (*buf);
+}
+
+DEFUN ("cygwin-convert-path-to-windows",
+ Fcygwin_convert_path_to_windows, Scygwin_convert_path_to_windows,
+ 1, 2, 0,
+ doc: /* Convert PATH to a Windows path. If ABSOLUTE-P if
+ non-nil, return an absolute path.*/)
+ (Lisp_Object path, Lisp_Object absolute_p)
+{
+ return from_unicode (
+ conv_filename_to_w32_unicode (path, absolute_p == Qnil ? 0 : 1));
+}
+
+DEFUN ("cygwin-convert-path-from-windows",
+ Fcygwin_convert_path_from_windows, Scygwin_convert_path_from_windows,
+ 1, 2, 0,
+ doc: /* Convert a Windows path to a Cygwin path. If ABSOLUTE-P
+ if non-nil, return an absolute path.*/)
+ (Lisp_Object path, Lisp_Object absolute_p)
+{
+ return conv_filename_from_w32_unicode (to_unicode (path, &path),
+ absolute_p == Qnil ? 0 : 1);
+}
+
+void
+syms_of_cygw32 (void)
+{
+ /* No, not utf-16-le: that one has a BOM. */
+ DEFSYM (Qutf_16_le, "utf-16le");
+ defsubr (&Scygwin_convert_path_from_windows);
+ defsubr (&Scygwin_convert_path_to_windows);
+}
--- /dev/null
+/* Header for Cygwin support routines.
+ Copyright (C) 2011 Free Software Foundation, Inc.
+
+This file is part of GNU Emacs.
+
+GNU Emacs 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 3 of the License, or
+(at your option) any later version.
+
+GNU Emacs 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 General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
+
+#ifndef CYGW32_H
+#define CYGW32_H
+#include <config.h>
+#include <windef.h>
+#include <sys/cygwin.h>
+#include <wchar.h>
+
+#include <signal.h>
+#include <stdio.h>
+#include <limits.h>
+#include <errno.h>
+#include <math.h>
+#include <setjmp.h>
+
+#include "lisp.h"
+#include "coding.h"
+
+/* *** Character conversion *** */
+
+/* Access the wide-character string stored in a Lisp string object. */
+#define WCSDATA(x) ((wchar_t *) SDATA (x))
+
+/* Convert the Emacs string in STR to UTF-16LE and store a new string
+ containing the encoded version of STR into *BUF. BUF may safely
+ point to STR on entry. */
+extern wchar_t *to_unicode (Lisp_Object str, Lisp_Object *buf);
+
+/* Convert STR, a UTF-16LE encoded string embedded in an Emacs string
+ object, to a normal Emacs string and return it. */
+extern Lisp_Object from_unicode (Lisp_Object str);
+
+/* *** Path conversion. *** */
+
+EXFUN (Fcygwin_convert_path_to_windows, 2);
+EXFUN (Fcygwin_convert_path_from_windows, 2);
+
+/* *** Misc *** */
+extern void syms_of_cygw32 (void);
+extern char * w32_strerror (int error_no);
+
+#endif /* CYGW32_H */
--- /dev/null
+/* Selection processing for Emacs on the Microsoft W32 API.
+
+Copyright (C) 1993-1994, 2001-2011 Free Software Foundation, Inc.
+
+This file is part of GNU Emacs.
+
+GNU Emacs 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 3 of the License, or
+(at your option) any later version.
+
+GNU Emacs 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 General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
+
+#ifndef W32SELECT_H
+#define W32SELECT_H
+#include <windows.h>
+
+#define HAVE_W32SELECT 1
+
+extern void syms_of_w32select (void);
+extern void globals_of_w32select (void);
+extern void term_w32select (void);
+
+#endif