aboutsummaryrefslogtreecommitdiff
path: root/usr.bin/vi/nvi/v_search.c
diff options
context:
space:
mode:
Diffstat (limited to 'usr.bin/vi/nvi/v_search.c')
-rw-r--r--usr.bin/vi/nvi/v_search.c364
1 files changed, 0 insertions, 364 deletions
diff --git a/usr.bin/vi/nvi/v_search.c b/usr.bin/vi/nvi/v_search.c
deleted file mode 100644
index 25dcaf5e2e10..000000000000
--- a/usr.bin/vi/nvi/v_search.c
+++ /dev/null
@@ -1,364 +0,0 @@
-/*-
- * Copyright (c) 1992, 1993
- * The Regents of the University of California. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#ifndef lint
-static char sccsid[] = "@(#)v_search.c 8.16 (Berkeley) 12/9/93";
-#endif /* not lint */
-
-#include <sys/types.h>
-
-#include <errno.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "vi.h"
-#include "vcmd.h"
-
-static int bcorrect __P((SCR *, EXF *, VICMDARG *, MARK *, MARK *, u_int));
-static int fcorrect __P((SCR *, EXF *, VICMDARG *, MARK *, MARK *, u_int));
-static int getptrn __P((SCR *, EXF *, int, char **));
-
-/*
- * v_searchn -- n
- * Repeat last search.
- */
-int
-v_searchn(sp, ep, vp, fm, tm, rp)
- SCR *sp;
- EXF *ep;
- VICMDARG *vp;
- MARK *fm, *tm, *rp;
-{
- int flags;
-
- flags = SEARCH_MSG;
- if (F_ISSET(vp, VC_C | VC_D | VC_Y))
- flags |= SEARCH_EOL;
- switch (sp->searchdir) {
- case BACKWARD:
- if (b_search(sp, ep, fm, rp, NULL, NULL, &flags))
- return (1);
- if (F_ISSET(vp, VC_C | VC_D | VC_Y | VC_SH) &&
- bcorrect(sp, ep, vp, fm, rp, flags))
- return (1);
- break;
- case FORWARD:
- if (f_search(sp, ep, fm, rp, NULL, NULL, &flags))
- return (1);
- if (F_ISSET(vp, VC_C | VC_D | VC_Y| VC_SH) &&
- fcorrect(sp, ep, vp, fm, rp, flags))
- return (1);
- break;
- case NOTSET:
- msgq(sp, M_ERR, "No previous search pattern.");
- return (1);
- default:
- abort();
- }
- return (0);
-}
-
-/*
- * v_searchN -- N
- * Reverse last search.
- */
-int
-v_searchN(sp, ep, vp, fm, tm, rp)
- SCR *sp;
- EXF *ep;
- VICMDARG *vp;
- MARK *fm, *tm, *rp;
-{
- int flags;
-
- flags = SEARCH_MSG;
- if (F_ISSET(vp, VC_C | VC_D | VC_Y))
- flags |= SEARCH_EOL;
- switch (sp->searchdir) {
- case BACKWARD:
- if (f_search(sp, ep, fm, rp, NULL, NULL, &flags))
- return (1);
- if (F_ISSET(vp, VC_C | VC_D | VC_Y | VC_SH) &&
- fcorrect(sp, ep, vp, fm, rp, flags))
- return (1);
- break;
- case FORWARD:
- if (b_search(sp, ep, fm, rp, NULL, NULL, &flags))
- return (1);
- if (F_ISSET(vp, VC_C | VC_D | VC_Y | VC_SH) &&
- bcorrect(sp, ep, vp, fm, rp, flags))
- return (1);
- break;
- case NOTSET:
- msgq(sp, M_ERR, "No previous search pattern.");
- return (1);
- default:
- abort();
- }
- return (0);
-}
-
-/*
- * v_searchw -- [count]^A
- * Search for the word under the cursor.
- */
-int
-v_searchw(sp, ep, vp, fm, tm, rp)
- SCR *sp;
- EXF *ep;
- VICMDARG *vp;
- MARK *fm, *tm, *rp;
-{
- size_t blen, len;
- u_int flags;
- int rval;
- char *bp;
-
- len = vp->kbuflen + sizeof(RE_WSTART) + sizeof(RE_WSTOP);
- GET_SPACE_RET(sp, bp, blen, len);
- (void)snprintf(bp, blen, "%s%s%s", RE_WSTART, vp->keyword, RE_WSTOP);
-
- flags = SEARCH_MSG;
- rval = f_search(sp, ep, fm, rp, bp, NULL, &flags);
-
- FREE_SPACE(sp, bp, blen);
- if (rval)
- return (1);
- if (F_ISSET(vp, VC_C | VC_D | VC_Y | VC_SH) &&
- fcorrect(sp, ep, vp, fm, rp, flags))
- return (1);
- return (0);
-}
-
-/*
- * v_searchb -- [count]?RE[? offset]
- * Search backward.
- */
-int
-v_searchb(sp, ep, vp, fm, tm, rp)
- SCR *sp;
- EXF *ep;
- VICMDARG *vp;
- MARK *fm, *tm, *rp;
-{
- int flags;
- char *ptrn;
-
- if (F_ISSET(vp, VC_ISDOT))
- ptrn = NULL;
- else {
- if (getptrn(sp, ep, '?', &ptrn))
- return (1);
- if (ptrn == NULL)
- return (0);
- }
-
- flags = SEARCH_MSG | SEARCH_PARSE | SEARCH_SET | SEARCH_TERM;
- if (F_ISSET(vp, VC_C | VC_D | VC_Y))
- flags |= SEARCH_EOL;
- if (b_search(sp, ep, fm, rp, ptrn, NULL, &flags))
- return (1);
- if (F_ISSET(vp, VC_C | VC_D | VC_Y | VC_SH) &&
- bcorrect(sp, ep, vp, fm, rp, flags))
- return (1);
- return (0);
-}
-
-/*
- * v_searchf -- [count]/RE[/ offset]
- * Search forward.
- */
-int
-v_searchf(sp, ep, vp, fm, tm, rp)
- SCR *sp;
- EXF *ep;
- VICMDARG *vp;
- MARK *fm, *tm, *rp;
-{
- int flags;
- char *ptrn;
-
- if (F_ISSET(vp, VC_ISDOT))
- ptrn = NULL;
- else {
- if (getptrn(sp, ep, '/', &ptrn))
- return (1);
- if (ptrn == NULL)
- return (0);
- }
-
- flags = SEARCH_MSG | SEARCH_PARSE | SEARCH_SET | SEARCH_TERM;
- if (F_ISSET(vp, VC_C | VC_D | VC_Y))
- flags |= SEARCH_EOL;
- if (f_search(sp, ep, fm, rp, ptrn, NULL, &flags))
- return (1);
- if (F_ISSET(vp, VC_C | VC_D | VC_Y | VC_SH) &&
- fcorrect(sp, ep, vp, fm, rp, flags))
- return (1);
- return (0);
-}
-
-/*
- * getptrn --
- * Get the search pattern.
- */
-static int
-getptrn(sp, ep, prompt, storep)
- SCR *sp;
- EXF *ep;
- int prompt;
- char **storep;
-{
- TEXT *tp;
-
- if (sp->s_get(sp, ep, &sp->tiq, prompt,
- TXT_BS | TXT_CR | TXT_ESCAPE | TXT_PROMPT) != INP_OK)
- return (1);
-
- /* Len is 0 if backspaced over the prompt, 1 if only CR entered. */
- tp = sp->tiq.cqh_first;
- if (tp->len == 0)
- *storep = NULL;
- else
- *storep = tp->lb;
- return (0);
-}
-
-/*
- * !!!
- * Historically, commands didn't affect the line searched to if the motion
- * command was a search and the pattern match was the start or end of the
- * line. There were some special cases, however, concerning search to the
- * start of end of a line.
- *
- * Vi was not, however, consistent, and it was fairly easy to confuse it.
- * For example, given the two lines:
- *
- * abcdefghi
- * ABCDEFGHI
- *
- * placing the cursor on the 'A' and doing y?$ would so confuse it that 'h'
- * 'k' and put would no longer work correctly. In any case, we try to do
- * the right thing, but it's not likely exactly match historic practice.
- */
-
-/*
- * bcorrect --
- * Handle command with a backward search as the motion.
- */
-static int
-bcorrect(sp, ep, vp, fm, rp, flags)
- SCR *sp;
- EXF *ep;
- VICMDARG *vp;
- MARK *fm, *rp;
- u_int flags;
-{
- size_t len;
- char *p;
-
- /*
- * !!!
- * Correct backward searches which start at column 0 to be one
- * past the last column of the previous line.
- *
- * Backward searches become line mode operations if they start
- * at column 0 and end at column 0 of another line.
- */
- if (fm->lno > rp->lno && fm->cno == 0) {
- if ((p = file_gline(sp, ep, --fm->lno, &len)) == NULL) {
- GETLINE_ERR(sp, rp->lno);
- return (1);
- }
- if (rp->cno == 0)
- F_SET(vp, VC_LMODE);
- fm->cno = len;
- }
-
- /*
- * !!!
- * Commands would become line mode operations if there was a delta
- * specified to the search pattern.
- */
- if (LF_ISSET(SEARCH_DELTA)) {
- F_SET(vp, VC_LMODE);
- return (0);
- }
- return (0);
-}
-
-/*
- * fcorrect --
- * Handle command with a forward search as the motion.
- */
-static int
-fcorrect(sp, ep, vp, fm, rp, flags)
- SCR *sp;
- EXF *ep;
- VICMDARG *vp;
- MARK *fm, *rp;
- u_int flags;
-{
- size_t len;
- char *p;
-
- /*
- * !!!
- * Correct forward searches which end at column 0 to be one
- * past the last column of the previous line.
- *
- * Forward searches become line mode operations if they start
- * at column 0 and end at column 0 of another line.
- */
- if (fm->lno < rp->lno && rp->cno == 0) {
- if ((p = file_gline(sp, ep, --rp->lno, &len)) == NULL) {
- GETLINE_ERR(sp, rp->lno);
- return (1);
- }
- if (fm->cno == 0)
- F_SET(vp, VC_LMODE);
- rp->cno = len;
- }
-
- /*
- * !!!
- * Commands would become line mode operations if there was a delta
- * specified to the search pattern.
- */
- if (LF_ISSET(SEARCH_DELTA)) {
- F_SET(vp, VC_LMODE);
- return (0);
- }
-
- return (0);
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-06 01:42:40 +0000