| 1 | /* |
| 2 | *Copyright (C) 2003-2004 Harold L Hunt II All Rights Reserved. |
| 3 | * |
| 4 | *Permission is hereby granted, free of charge, to any person obtaining |
| 5 | * a copy of this software and associated documentation files (the |
| 6 | *"Software"), to deal in the Software without restriction, including |
| 7 | *without limitation the rights to use, copy, modify, merge, publish, |
| 8 | *distribute, sublicense, and/or sell copies of the Software, and to |
| 9 | *permit persons to whom the Software is furnished to do so, subject to |
| 10 | *the following conditions: |
| 11 | * |
| 12 | *The above copyright notice and this permission notice shall be |
| 13 | *included in all copies or substantial portions of the Software. |
| 14 | * |
| 15 | *THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| 16 | *EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| 17 | *MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| 18 | *NONINFRINGEMENT. IN NO EVENT SHALL HAROLD L HUNT II BE LIABLE FOR |
| 19 | *ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF |
| 20 | *CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION |
| 21 | *WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| 22 | * |
| 23 | *Except as contained in this notice, the name of Harold L Hunt II |
| 24 | *shall not be used in advertising or otherwise to promote the sale, use |
| 25 | *or other dealings in this Software without prior written authorization |
| 26 | *from Harold L Hunt II. |
| 27 | * |
| 28 | * Authors: Harold L Hunt II |
| 29 | */ |
| 30 | |
| 31 | #ifdef HAVE_XWIN_CONFIG_H |
| 32 | #include <xwin-config.h> |
| 33 | #endif |
| 34 | #include "win.h" |
| 35 | #include <stdio.h> |
| 36 | #include <stdlib.h> |
| 37 | |
| 38 | void |
| 39 | winClipboardDOStoUNIX(char *pszSrc, int iLength); |
| 40 | void |
| 41 | winClipboardUNIXtoDOS(char **ppszData, int iLength); |
| 42 | |
| 43 | /* |
| 44 | * Convert \r\n to \n |
| 45 | * |
| 46 | * NOTE: This was heavily inspired by, Cygwin's |
| 47 | * winsup/cygwin/fhandler.cc/fhandler_base::read () |
| 48 | */ |
| 49 | |
| 50 | void |
| 51 | winClipboardDOStoUNIX(char *pszSrc, int iLength) |
| 52 | { |
| 53 | char *pszDest = pszSrc; |
| 54 | char *pszEnd = pszSrc + iLength; |
| 55 | |
| 56 | /* Loop until the last character */ |
| 57 | while (pszSrc < pszEnd) { |
| 58 | /* Copy the current source character to current destination character */ |
| 59 | *pszDest = *pszSrc; |
| 60 | |
| 61 | /* Advance to the next source character */ |
| 62 | pszSrc++; |
| 63 | |
| 64 | /* Don't advance the destination character if we need to drop an \r */ |
| 65 | if (*pszDest != '\r' || *pszSrc != '\n') |
| 66 | pszDest++; |
| 67 | } |
| 68 | |
| 69 | /* Move the terminating null */ |
| 70 | *pszDest = '\0'; |
| 71 | } |
| 72 | |
| 73 | /* |
| 74 | * Convert \n to \r\n |
| 75 | */ |
| 76 | |
| 77 | void |
| 78 | winClipboardUNIXtoDOS(char **ppszData, int iLength) |
| 79 | { |
| 80 | int iNewlineCount = 0; |
| 81 | char *pszSrc = *ppszData; |
| 82 | char *pszEnd = pszSrc + iLength; |
| 83 | char *pszDest = NULL, *pszDestBegin = NULL; |
| 84 | |
| 85 | winDebug("UNIXtoDOS () - Original data:'%s'\n", *ppszData); |
| 86 | |
| 87 | /* Count \n characters without leading \r */ |
| 88 | while (pszSrc < pszEnd) { |
| 89 | /* Skip ahead two character if found set of \r\n */ |
| 90 | if (*pszSrc == '\r' && pszSrc + 1 < pszEnd && *(pszSrc + 1) == '\n') { |
| 91 | pszSrc += 2; |
| 92 | continue; |
| 93 | } |
| 94 | |
| 95 | /* Increment the count if found naked \n */ |
| 96 | if (*pszSrc == '\n') { |
| 97 | iNewlineCount++; |
| 98 | } |
| 99 | |
| 100 | pszSrc++; |
| 101 | } |
| 102 | |
| 103 | /* Return if no naked \n's */ |
| 104 | if (iNewlineCount == 0) |
| 105 | return; |
| 106 | |
| 107 | /* Allocate a new string */ |
| 108 | pszDestBegin = pszDest = malloc(iLength + iNewlineCount + 1); |
| 109 | |
| 110 | /* Set source pointer to beginning of data string */ |
| 111 | pszSrc = *ppszData; |
| 112 | |
| 113 | /* Loop through all characters in source string */ |
| 114 | while (pszSrc < pszEnd) { |
| 115 | /* Copy line endings that are already valid */ |
| 116 | if (*pszSrc == '\r' && pszSrc + 1 < pszEnd && *(pszSrc + 1) == '\n') { |
| 117 | *pszDest = *pszSrc; |
| 118 | *(pszDest + 1) = *(pszSrc + 1); |
| 119 | pszDest += 2; |
| 120 | pszSrc += 2; |
| 121 | continue; |
| 122 | } |
| 123 | |
| 124 | /* Add \r to naked \n's */ |
| 125 | if (*pszSrc == '\n') { |
| 126 | *pszDest = '\r'; |
| 127 | *(pszDest + 1) = *pszSrc; |
| 128 | pszDest += 2; |
| 129 | pszSrc += 1; |
| 130 | continue; |
| 131 | } |
| 132 | |
| 133 | /* Copy normal characters */ |
| 134 | *pszDest = *pszSrc; |
| 135 | pszSrc++; |
| 136 | pszDest++; |
| 137 | } |
| 138 | |
| 139 | /* Put terminating null at end of new string */ |
| 140 | *pszDest = '\0'; |
| 141 | |
| 142 | /* Swap string pointers */ |
| 143 | free(*ppszData); |
| 144 | *ppszData = pszDestBegin; |
| 145 | |
| 146 | winDebug("UNIXtoDOS () - Final string:'%s'\n", pszDestBegin); |
| 147 | } |