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