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