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-rw-r--r--xorg-server/hw/xwin/winclipboardtextconv.c159
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diff --git a/xorg-server/hw/xwin/winclipboardtextconv.c b/xorg-server/hw/xwin/winclipboardtextconv.c
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+++ b/xorg-server/hw/xwin/winclipboardtextconv.c
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+/*
+ *Copyright (C) 2003-2004 Harold L Hunt II All Rights Reserved.
+ *
+ *Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ *"Software"), to deal in the Software without restriction, including
+ *without limitation the rights to use, copy, modify, merge, publish,
+ *distribute, sublicense, and/or sell copies of the Software, and to
+ *permit persons to whom the Software is furnished to do so, subject to
+ *the following conditions:
+ *
+ *The above copyright notice and this permission notice shall be
+ *included in all copies or substantial portions of the Software.
+ *
+ *THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ *EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ *MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ *NONINFRINGEMENT. IN NO EVENT SHALL HAROLD L HUNT II BE LIABLE FOR
+ *ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
+ *CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ *WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ *Except as contained in this notice, the name of Harold L Hunt II
+ *shall not be used in advertising or otherwise to promote the sale, use
+ *or other dealings in this Software without prior written authorization
+ *from Harold L Hunt II.
+ *
+ * Authors: Harold L Hunt II
+ */
+
+#ifdef HAVE_XWIN_CONFIG_H
+#include <xwin-config.h>
+#endif
+#include "win.h"
+#include <stdio.h>
+#include <stdlib.h>
+
+void
+winClipboardDOStoUNIX (char *pszSrc, int iLength);
+void
+winClipboardUNIXtoDOS (unsigned char **ppszData, int iLength);
+
+/*
+ * Convert \r\n to \n
+ *
+ * NOTE: This was heavily inspired by, Cygwin's
+ * winsup/cygwin/fhandler.cc/fhandler_base::read ()
+ */
+
+void
+winClipboardDOStoUNIX (char *pszSrc, int iLength)
+{
+ char *pszDest = pszSrc;
+ char *pszEnd = pszSrc + iLength;
+
+ /* Loop until the last character */
+ while (pszSrc < pszEnd)
+ {
+ /* Copy the current source character to current destination character */
+ *pszDest = *pszSrc;
+
+ /* Advance to the next source character */
+ pszSrc++;
+
+ /* Don't advance the destination character if we need to drop an \r */
+ if (*pszDest != '\r' || *pszSrc != '\n')
+ pszDest++;
+ }
+
+ /* Move the terminating null */
+ *pszDest = '\0';
+}
+
+
+/*
+ * Convert \n to \r\n
+ */
+
+void
+winClipboardUNIXtoDOS (unsigned char **ppszData, int iLength)
+{
+ int iNewlineCount = 0;
+ unsigned char *pszSrc = *ppszData;
+ unsigned char *pszEnd = pszSrc + iLength;
+ unsigned char *pszDest = NULL, *pszDestBegin = NULL;
+
+#if 0
+ ErrorF ("UNIXtoDOS () - Original data:\n%s\n", *ppszData);
+#endif
+
+ /* Count \n characters without leading \r */
+ while (pszSrc < pszEnd)
+ {
+ /* Skip ahead two character if found set of \r\n */
+ if (*pszSrc == '\r' && pszSrc + 1 < pszEnd && *(pszSrc + 1) == '\n')
+ {
+ pszSrc += 2;
+ continue;
+ }
+
+ /* Increment the count if found naked \n */
+ if (*pszSrc == '\n')
+ {
+ iNewlineCount++;
+ }
+
+ pszSrc++;
+ }
+
+ /* Return if no naked \n's */
+ if (iNewlineCount == 0)
+ return;
+
+ /* Allocate a new string */
+ pszDestBegin = pszDest = malloc (iLength + iNewlineCount + 1);
+
+ /* Set source pointer to beginning of data string */
+ pszSrc = *ppszData;
+
+ /* Loop through all characters in source string */
+ while (pszSrc < pszEnd)
+ {
+ /* Copy line endings that are already valid */
+ if (*pszSrc == '\r' && pszSrc + 1 < pszEnd && *(pszSrc + 1) == '\n')
+ {
+ *pszDest = *pszSrc;
+ *(pszDest + 1) = *(pszSrc + 1);
+ pszDest += 2;
+ pszSrc += 2;
+ continue;
+ }
+
+ /* Add \r to naked \n's */
+ if (*pszSrc == '\n')
+ {
+ *pszDest = '\r';
+ *(pszDest + 1) = *pszSrc;
+ pszDest += 2;
+ pszSrc += 1;
+ continue;
+ }
+
+ /* Copy normal characters */
+ *pszDest = *pszSrc;
+ pszSrc++;
+ pszDest++;
+ }
+
+ /* Put terminating null at end of new string */
+ *pszDest = '\0';
+
+ /* Swap string pointers */
+ free (*ppszData);
+ *ppszData = pszDestBegin;
+
+#if 0
+ ErrorF ("UNIXtoDOS () - Final string:\n%s\n", pszDestBegin);
+#endif
+}