[14301] | 1 | /*- |
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| 2 | * Copyright (c) 1992, 1993, 1994 |
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| 3 | * The Regents of the University of California. All rights reserved. |
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| 4 | * Copyright (c) 1992, 1993, 1994, 1995, 1996 |
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| 5 | * Keith Bostic. All rights reserved. |
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| 6 | * |
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| 7 | * See the LICENSE file for redistribution information. |
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| 8 | */ |
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| 9 | |
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| 10 | #include "config.h" |
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| 11 | |
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| 12 | #ifndef lint |
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| 13 | static const char sccsid[] = "@(#)v_yank.c 10.9 (Berkeley) 5/19/96"; |
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| 14 | #endif /* not lint */ |
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| 15 | |
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| 16 | #include <sys/types.h> |
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| 17 | #include <sys/queue.h> |
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| 18 | #include <sys/time.h> |
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| 19 | |
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| 20 | #include <bitstring.h> |
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| 21 | #include <limits.h> |
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| 22 | #include <stdio.h> |
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| 23 | |
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| 24 | #include "../common/common.h" |
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| 25 | #include "vi.h" |
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| 26 | |
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| 27 | /* |
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| 28 | * v_yank -- [buffer][count]y[count][motion] |
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| 29 | * [buffer][count]Y |
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| 30 | * Yank text (or lines of text) into a cut buffer. |
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| 31 | * |
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| 32 | * !!! |
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| 33 | * Historic vi moved the cursor to the from MARK if it was before the current |
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| 34 | * cursor and on a different line, e.g., "yk" moves the cursor but "yj" and |
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| 35 | * "yl" do not. Unfortunately, it's too late to change this now. Matching |
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| 36 | * the historic semantics isn't easy. The line number was always changed and |
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| 37 | * column movement was usually relative. However, "y'a" moved the cursor to |
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| 38 | * the first non-blank of the line marked by a, while "y`a" moved the cursor |
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| 39 | * to the line and column marked by a. Hopefully, the motion component code |
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| 40 | * got it right... Unlike delete, we make no adjustments here. |
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| 41 | * |
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| 42 | * PUBLIC: int v_yank __P((SCR *, VICMD *)); |
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| 43 | */ |
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| 44 | int |
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| 45 | v_yank(sp, vp) |
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| 46 | SCR *sp; |
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| 47 | VICMD *vp; |
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| 48 | { |
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| 49 | size_t len; |
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| 50 | |
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| 51 | if (cut(sp, |
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| 52 | F_ISSET(vp, VC_BUFFER) ? &vp->buffer : NULL, &vp->m_start, |
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| 53 | &vp->m_stop, F_ISSET(vp, VM_LMODE) ? CUT_LINEMODE : 0)) |
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| 54 | return (1); |
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| 55 | sp->rptlines[L_YANKED] += (vp->m_stop.lno - vp->m_start.lno) + 1; |
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| 56 | |
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| 57 | /* |
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| 58 | * One special correction, in case we've deleted the current line or |
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| 59 | * character. We check it here instead of checking in every command |
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| 60 | * that can be a motion component. |
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| 61 | */ |
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| 62 | if (db_get(sp, vp->m_final.lno, DBG_FATAL, NULL, &len)) |
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| 63 | return (1); |
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| 64 | |
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| 65 | /* |
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| 66 | * !!! |
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| 67 | * Cursor movements, other than those caused by a line mode command |
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| 68 | * moving to another line, historically reset the relative position. |
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| 69 | * |
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| 70 | * This currently matches the check made in v_delete(), I'm hoping |
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| 71 | * that they should be consistent... |
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| 72 | */ |
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| 73 | if (!F_ISSET(vp, VM_LMODE)) { |
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| 74 | F_CLR(vp, VM_RCM_MASK); |
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| 75 | F_SET(vp, VM_RCM_SET); |
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| 76 | |
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| 77 | /* Make sure the set cursor position exists. */ |
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| 78 | if (vp->m_final.cno >= len) |
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| 79 | vp->m_final.cno = len ? len - 1 : 0; |
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| 80 | } |
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| 81 | return (0); |
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| 82 | } |
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