2 * Copyright (c) 1992, 1993, 1994
3 * The Regents of the University of California. All rights reserved.
4 * Copyright (c) 1992, 1993, 1994, 1995, 1996
5 * Keith Bostic. All rights reserved.
7 * See the LICENSE file for redistribution information.
13 static const char sccsid[] = "$Id: ex_move.c,v 10.16 2012/02/11 15:52:33 zy Exp $";
16 #include <sys/types.h>
17 #include <sys/queue.h>
20 #include <bitstring.h>
26 #include "../common/common.h"
29 * ex_copy -- :[line [,line]] co[py] line [flags]
30 * Copy selected lines.
32 * PUBLIC: int ex_copy(SCR *, EXCMD *);
35 ex_copy(SCR *sp, EXCMD *cmdp)
47 * It's possible to copy things into the area that's being
48 * copied, e.g. "2,5copy3" is legitimate. Save the text to
54 for (cnt = fm1.lno; cnt <= fm2.lno; ++cnt)
55 if (cut_line(sp, cnt, 0, ENTIRE_LINE, &cb)) {
61 /* Put the text into place. */
62 tm.lno = cmdp->lineno;
64 if (put(sp, &cb, NULL, &tm, &m, 1))
68 * Copy puts the cursor on the last line copied. The cursor
69 * returned by the put routine is the first line put, not the
70 * last, because that's the historic semantic of vi.
72 cnt = (fm2.lno - fm1.lno) + 1;
73 sp->lno = m.lno + (cnt - 1);
76 err: text_lfree(cb.textq);
81 * ex_move -- :[line [,line]] mo[ve] line
82 * Move selected lines.
84 * PUBLIC: int ex_move(SCR *, EXCMD *);
87 ex_move(SCR *sp, EXCMD *cmdp)
91 recno_t cnt, diff, fl, tl, mfl, mtl;
100 * It's not possible to move things into the area that's being
105 if (cmdp->lineno >= fm1.lno && cmdp->lineno <= fm2.lno) {
106 msgq(sp, M_ERR, "139|Destination line is inside move range");
111 * Log the positions of any marks in the to-be-deleted lines. This
112 * has to work with the logging code. What happens is that we log
113 * the old mark positions, make the changes, then log the new mark
114 * positions. Then the marks end up in the right positions no matter
115 * which way the log is traversed.
118 * Reset the MARK_USERSET flag so that the log can undo the mark.
119 * This isn't very clean, and should probably be fixed.
124 /* Log the old positions of the marks. */
126 SLIST_FOREACH(lmp, sp->ep->marks, q)
127 if (lmp->name != ABSMARK1 &&
128 lmp->lno >= fl && lmp->lno <= tl) {
130 F_CLR(lmp, MARK_USERSET);
131 (void)log_mark(sp, lmp);
134 /* Get memory for the copy. */
135 GET_SPACE_RETW(sp, bp, blen, 256);
137 /* Move the lines. */
138 diff = (fm2.lno - fm1.lno) + 1;
139 if (tl > fl) { /* Destination > source. */
142 for (cnt = diff; cnt--;) {
143 if (db_get(sp, fl, DBG_FATAL, &p, &len))
145 BINC_RETW(sp, bp, blen, len);
147 if (db_append(sp, 1, tl, bp, len))
150 SLIST_FOREACH(lmp, sp->ep->marks, q)
151 if (lmp->name != ABSMARK1 &&
154 if (db_delete(sp, fl))
157 } else { /* Destination < source. */
160 for (cnt = diff; cnt--;) {
161 if (db_get(sp, fl, DBG_FATAL, &p, &len))
163 BINC_RETW(sp, bp, blen, len);
165 if (db_append(sp, 1, tl++, bp, len))
168 SLIST_FOREACH(lmp, sp->ep->marks, q)
169 if (lmp->name != ABSMARK1 &&
173 if (db_delete(sp, fl))
177 FREE_SPACEW(sp, bp, blen);
179 sp->lno = tl; /* Last line moved. */
182 /* Log the new positions of the marks. */
184 SLIST_FOREACH(lmp, sp->ep->marks, q)
185 if (lmp->name != ABSMARK1 &&
186 lmp->lno >= mfl && lmp->lno <= mtl)
187 (void)log_mark(sp, lmp);
190 sp->rptlines[L_MOVED] += diff;