1/* $OpenBSD: v_yank.c,v 1.7 2014/11/12 04:28:41 bentley Exp $ */ 2 3/*- 4 * Copyright (c) 1992, 1993, 1994 5 * The Regents of the University of California. All rights reserved. 6 * Copyright (c) 1992, 1993, 1994, 1995, 1996 7 * Keith Bostic. All rights reserved. 8 * 9 * See the LICENSE file for redistribution information. 10 */ 11 12#include "config.h" 13 14#include <sys/types.h> 15#include <sys/queue.h> 16#include <sys/time.h> 17 18#include <bitstring.h> 19#include <limits.h> 20#include <stdio.h> 21 22#include "../common/common.h" 23#include "vi.h" 24 25/* 26 * v_yank -- [buffer][count]y[count][motion] 27 * [buffer][count]Y 28 * Yank text (or lines of text) into a cut buffer. 29 * 30 * !!! 31 * Historic vi moved the cursor to the from MARK if it was before the current 32 * cursor and on a different line, e.g., "yk" moves the cursor but "yj" and 33 * "yl" do not. Unfortunately, it's too late to change this now. Matching 34 * the historic semantics isn't easy. The line number was always changed and 35 * column movement was usually relative. However, "y'a" moved the cursor to 36 * the first non-blank of the line marked by a, while "y`a" moved the cursor 37 * to the line and column marked by a. Hopefully, the motion component code 38 * got it right... Unlike delete, we make no adjustments here. 39 * 40 * PUBLIC: int v_yank(SCR *, VICMD *); 41 */ 42int 43v_yank(SCR *sp, VICMD *vp) 44{ 45 size_t len; 46 47 if (cut(sp, 48 F_ISSET(vp, VC_BUFFER) ? &vp->buffer : NULL, &vp->m_start, 49 &vp->m_stop, F_ISSET(vp, VM_LMODE) ? CUT_LINEMODE : 0)) 50 return (1); 51 sp->rptlines[L_YANKED] += (vp->m_stop.lno - vp->m_start.lno) + 1; 52 53 /* 54 * One special correction, in case we've deleted the current line or 55 * character. We check it here instead of checking in every command 56 * that can be a motion component. 57 */ 58 if (db_get(sp, vp->m_final.lno, DBG_FATAL, NULL, &len)) 59 return (1); 60 61 /* 62 * !!! 63 * Cursor movements, other than those caused by a line mode command 64 * moving to another line, historically reset the relative position. 65 * 66 * This currently matches the check made in v_delete(), I'm hoping 67 * that they should be consistent... 68 */ 69 if (!F_ISSET(vp, VM_LMODE)) { 70 F_CLR(vp, VM_RCM_MASK); 71 F_SET(vp, VM_RCM_SET); 72 73 /* Make sure the set cursor position exists. */ 74 if (vp->m_final.cno >= len) 75 vp->m_final.cno = len ? len - 1 : 0; 76 } 77 return (0); 78} 79