104 lines
5.1 KiB
C
104 lines
5.1 KiB
C
/****************************************************************************/
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/* xdiff */
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/****************************************************************************/
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/*
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* Produce a graphical difference of two files.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* Copyright (c) 1994 Rudy Wortel. All rights reserved.
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*/
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/*
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* $Source: /proj/irix6.5.7m/isms/eoe/cmd/xdiff/RCS/xdDiff.h,v $
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* $Revision: 1.2 $
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* $Author: blean $
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* $Date: 1995/02/27 22:42:24 $
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*/
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#include <string.h>
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#include <malloc.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#define XD_COMMON 0 /* Attributes for common lines. */
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#define XD_ONLY 1 /* Attributes for lines only in one file. */
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#define XD_ABSENT 2 /* Attributes for lines absent in one file. */
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#define XD_CHANGED 3 /* Attributes for changed lines. */
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#define XD_SELECTED 4 /* Attributes for selected lines. */
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#define XD_DELETED 5 /* Attributes for deleted lines. */
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#define XD_MATCHED
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/* Difference states */
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#define XD_COMMONTEXT 0 /* This line is common between files. */
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#define XD_LEFTTEXT 1 /* This line appears only on the left. */
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#define XD_RIGHTTEXT 2 /* This line appears only on the right. */
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#define XD_CHANGEDTEXT 3 /* This line has changed between files. */
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/* Difference flags */
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#define XD_MATCHED_LEFT 0x0001 /* Pattern matched the left text. */
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#define XD_MATCHED_RIGHT 0x0002 /* Pattern matched the right text. */
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#define XD_MATCHED_MASK 0x0003 /* Mask for the above flags. */
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/* Selection states */
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#define XD_SELECTNONE 0 /* Haven't decided yet. */
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#define XD_SELECTLEFT 1 /* Want the left file text */
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#define XD_SELECTRIGHT 2 /* Want the right file text */
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#define XD_SELECTNEITHER 4 /* Don't want either side. */
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/* Command line flags */
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#define XD_IGN_TRAILING 0x0001 /* Ignore trailing white space. */
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#define XD_IGN_WHITESPACE 0x0002 /* Ignore all white space. */
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#define XD_IGN_CASE 0x0004 /* Ignore case. */
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#define XD_EXIT_NODIFF 0x0008 /* Exit if no differences. */
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#define XD_LEFT_WRITABLE 0x0010 /* Is the left file writable. */
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#define XD_RIGHT_WRITABLE 0x0020 /* Is the right file writable. */
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typedef struct xddiff {
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int index; /* Overall line index. */
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struct xddiff *prev; /* Linked list */
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struct xddiff *next; /* Linked list */
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char *left; /* Text for the left file. */
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char *right; /* Text for the right file. */
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int lnuml; /* Line number for the left file. */
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int lnumr; /* Line number for the right file. */
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int type; /* What was different. */
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int selection; /* What you want to keep. */
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int flags; /* Various flags. */
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} XDdiff;
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typedef struct xdlist {
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struct xddiff *first; /* First item in the list. */
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struct xddiff *last; /* Last item in the list. */
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struct xddiff *current; /* Current interest point. */
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int lines; /* Number of lines in the difference list. */
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char *lfile; /* Left file name. */
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char *rfile; /* Right file name. */
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int llines; /* Number of lines in the left file. */
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int rlines; /* Number of lines in the right file. */
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int flags; /* Flags to use when calling diff(1). */
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int digits; /* How much room needed for a line number. */
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} XDlist;
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/*
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* The symbol __RedoDiff__ turns on the added "Redo Diff" menu choice.
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* It is all ifdef'd so that if there are any problems it will be easy to
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* spot the changes made to implement it. It is *not* expected to be
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* turned off, though xdiff should build fine even if it is turned off.
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*/
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#ifndef __RedoDiff__
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#define __RedoDiff__
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#endif
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