1 /*- 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. 6 * 7 * See the LICENSE file for redistribution information. 8 */ 9 10 #include "config.h" 11 12 #ifndef lint 13 static const char sccsid[] = "$Id: v_yank.c,v 10.10 2001/06/25 15:19:36 skimo Exp $"; 14 #endif /* not lint */ 15 16 #include <sys/types.h> 17 #include <sys/queue.h> 18 #include <sys/time.h> 19 20 #include <bitstring.h> 21 #include <limits.h> 22 #include <stdio.h> 23 24 #include "../common/common.h" 25 #include "vi.h" 26 27 /* 28 * v_yank -- [buffer][count]y[count][motion] 29 * [buffer][count]Y 30 * Yank text (or lines of text) into a cut buffer. 31 * 32 * !!! 33 * Historic vi moved the cursor to the from MARK if it was before the current 34 * cursor and on a different line, e.g., "yk" moves the cursor but "yj" and 35 * "yl" do not. Unfortunately, it's too late to change this now. Matching 36 * the historic semantics isn't easy. The line number was always changed and 37 * column movement was usually relative. However, "y'a" moved the cursor to 38 * the first non-blank of the line marked by a, while "y`a" moved the cursor 39 * to the line and column marked by a. Hopefully, the motion component code 40 * got it right... Unlike delete, we make no adjustments here. 41 * 42 * PUBLIC: int v_yank(SCR *, VICMD *); 43 */ 44 int 45 v_yank(SCR *sp, VICMD *vp) 46 { 47 size_t len; 48 49 if (cut(sp, 50 F_ISSET(vp, VC_BUFFER) ? &vp->buffer : NULL, &vp->m_start, 51 &vp->m_stop, F_ISSET(vp, VM_LMODE) ? CUT_LINEMODE : 0)) 52 return (1); 53 sp->rptlines[L_YANKED] += (vp->m_stop.lno - vp->m_start.lno) + 1; 54 55 /* 56 * One special correction, in case we've deleted the current line or 57 * character. We check it here instead of checking in every command 58 * that can be a motion component. 59 */ 60 if (db_get(sp, vp->m_final.lno, DBG_FATAL, NULL, &len)) 61 return (1); 62 63 /* 64 * !!! 65 * Cursor movements, other than those caused by a line mode command 66 * moving to another line, historically reset the relative position. 67 * 68 * This currently matches the check made in v_delete(), I'm hoping 69 * that they should be consistent... 70 */ 71 if (!F_ISSET(vp, VM_LMODE)) { 72 F_CLR(vp, VM_RCM_MASK); 73 F_SET(vp, VM_RCM_SET); 74 75 /* Make sure the set cursor position exists. */ 76 if (vp->m_final.cno >= len) 77 vp->m_final.cno = len ? len - 1 : 0; 78 } 79 return (0); 80 } 81