diff options
Diffstat (limited to '1.2-netsec/editline/search.c')
| -rw-r--r-- | 1.2-netsec/editline/search.c | 649 |
1 files changed, 0 insertions, 649 deletions
diff --git a/1.2-netsec/editline/search.c b/1.2-netsec/editline/search.c deleted file mode 100644 index 7c1cb84ef..000000000 --- a/1.2-netsec/editline/search.c +++ /dev/null @@ -1,649 +0,0 @@ -/* $NetBSD: search.c,v 1.12 2002/03/18 16:00:58 christos Exp $ */ - -/*- - * Copyright (c) 1992, 1993 - * The Regents of the University of California. All rights reserved. - * - * This code is derived from software contributed to Berkeley by - * Christos Zoulas of Cornell University. - * - * 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. - */ - -#include "config.h" -#if !defined(lint) && !defined(SCCSID) -#if 0 -static char sccsid[] = "@(#)search.c 8.1 (Berkeley) 6/4/93"; -#else -__RCSID("$NetBSD: search.c,v 1.12 2002/03/18 16:00:58 christos Exp $"); -#endif -#endif /* not lint && not SCCSID */ - -/* - * search.c: History and character search functions - */ -#include <stdlib.h> -#if defined(REGEX) -#include <regex.h> -#elif defined(REGEXP) -#include <regexp.h> -#endif -#include "el.h" - -/* - * Adjust cursor in vi mode to include the character under it - */ -#define EL_CURSOR(el) \ - ((el)->el_line.cursor + (((el)->el_map.type == MAP_VI) && \ - ((el)->el_map.current == (el)->el_map.alt))) - -/* search_init(): - * Initialize the search stuff - */ -protected int -search_init(EditLine *el) -{ - - el->el_search.patbuf = (char *) el_malloc(EL_BUFSIZ); - if (el->el_search.patbuf == NULL) - return (-1); - el->el_search.patlen = 0; - el->el_search.patdir = -1; - el->el_search.chacha = '\0'; - el->el_search.chadir = -1; - return (0); -} - - -/* search_end(): - * Initialize the search stuff - */ -protected void -search_end(EditLine *el) -{ - - el_free((ptr_t) el->el_search.patbuf); - el->el_search.patbuf = NULL; -} - - -#ifdef REGEXP -/* regerror(): - * Handle regular expression errors - */ -public void -/*ARGSUSED*/ -regerror(const char *msg) -{ -} -#endif - - -/* el_match(): - * Return if string matches pattern - */ -protected int -el_match(const char *str, const char *pat) -{ -#if defined (REGEX) - regex_t re; - int rv; -#elif defined (REGEXP) - regexp *rp; - int rv; -#else - extern char *re_comp(const char *); - extern int re_exec(const char *); -#endif - - if (strstr(str, pat) != NULL) - return (1); - -#if defined(REGEX) - if (regcomp(&re, pat, 0) == 0) { - rv = regexec(&re, str, 0, NULL, 0) == 0; - regfree(&re); - } else { - rv = 0; - } - return (rv); -#elif defined(REGEXP) - if ((re = regcomp(pat)) != NULL) { - rv = regexec(re, str); - free((ptr_t) re); - } else { - rv = 0; - } - return (rv); -#else - if (re_comp(pat) != NULL) - return (0); - else - return (re_exec(str) == 1); -#endif -} - - -/* c_hmatch(): - * return True if the pattern matches the prefix - */ -protected int -c_hmatch(EditLine *el, const char *str) -{ -#ifdef SDEBUG - (void) fprintf(el->el_errfile, "match `%s' with `%s'\n", - el->el_search.patbuf, str); -#endif /* SDEBUG */ - - return (el_match(str, el->el_search.patbuf)); -} - - -/* c_setpat(): - * Set the history seatch pattern - */ -protected void -c_setpat(EditLine *el) -{ - if (el->el_state.lastcmd != ED_SEARCH_PREV_HISTORY && - el->el_state.lastcmd != ED_SEARCH_NEXT_HISTORY) { - el->el_search.patlen = EL_CURSOR(el) - el->el_line.buffer; - if (el->el_search.patlen >= EL_BUFSIZ) - el->el_search.patlen = EL_BUFSIZ - 1; - if (el->el_search.patlen != 0) { - (void) strncpy(el->el_search.patbuf, el->el_line.buffer, - el->el_search.patlen); - el->el_search.patbuf[el->el_search.patlen] = '\0'; - } else - el->el_search.patlen = strlen(el->el_search.patbuf); - } -#ifdef SDEBUG - (void) fprintf(el->el_errfile, "\neventno = %d\n", - el->el_history.eventno); - (void) fprintf(el->el_errfile, "patlen = %d\n", el->el_search.patlen); - (void) fprintf(el->el_errfile, "patbuf = \"%s\"\n", - el->el_search.patbuf); - (void) fprintf(el->el_errfile, "cursor %d lastchar %d\n", - EL_CURSOR(el) - el->el_line.buffer, - el->el_line.lastchar - el->el_line.buffer); -#endif -} - - -/* ce_inc_search(): - * Emacs incremental search - */ -protected el_action_t -ce_inc_search(EditLine *el, int dir) -{ - static const char STRfwd[] = {'f', 'w', 'd', '\0'}, - STRbck[] = {'b', 'c', 'k', '\0'}; - static char pchar = ':';/* ':' = normal, '?' = failed */ - static char endcmd[2] = {'\0', '\0'}; - char ch, *ocursor = el->el_line.cursor, oldpchar = pchar; - const char *cp; - - el_action_t ret = CC_NORM; - - int ohisteventno = el->el_history.eventno; - int oldpatlen = el->el_search.patlen; - int newdir = dir; - int done, redo; - - if (el->el_line.lastchar + sizeof(STRfwd) / sizeof(char) + 2 + - el->el_search.patlen >= el->el_line.limit) - return (CC_ERROR); - - for (;;) { - - if (el->el_search.patlen == 0) { /* first round */ - pchar = ':'; -#ifdef ANCHOR - el->el_search.patbuf[el->el_search.patlen++] = '.'; - el->el_search.patbuf[el->el_search.patlen++] = '*'; -#endif - } - done = redo = 0; - *el->el_line.lastchar++ = '\n'; - for (cp = (newdir == ED_SEARCH_PREV_HISTORY) ? STRbck : STRfwd; - *cp; *el->el_line.lastchar++ = *cp++) - continue; - *el->el_line.lastchar++ = pchar; - for (cp = &el->el_search.patbuf[1]; - cp < &el->el_search.patbuf[el->el_search.patlen]; - *el->el_line.lastchar++ = *cp++) - continue; - *el->el_line.lastchar = '\0'; - re_refresh(el); - - if (el_getc(el, &ch) != 1) - return (ed_end_of_file(el, 0)); - - switch (el->el_map.current[(unsigned char) ch]) { - case ED_INSERT: - case ED_DIGIT: - if (el->el_search.patlen > EL_BUFSIZ - 3) - term_beep(el); - else { - el->el_search.patbuf[el->el_search.patlen++] = - ch; - *el->el_line.lastchar++ = ch; - *el->el_line.lastchar = '\0'; - re_refresh(el); - } - break; - - case EM_INC_SEARCH_NEXT: - newdir = ED_SEARCH_NEXT_HISTORY; - redo++; - break; - - case EM_INC_SEARCH_PREV: - newdir = ED_SEARCH_PREV_HISTORY; - redo++; - break; - - case ED_DELETE_PREV_CHAR: - if (el->el_search.patlen > 1) - done++; - else - term_beep(el); - break; - - default: - switch (ch) { - case 0007: /* ^G: Abort */ - ret = CC_ERROR; - done++; - break; - - case 0027: /* ^W: Append word */ - /* No can do if globbing characters in pattern */ - for (cp = &el->el_search.patbuf[1];; cp++) - if (cp >= &el->el_search.patbuf[el->el_search.patlen]) { - el->el_line.cursor += - el->el_search.patlen - 1; - cp = c__next_word(el->el_line.cursor, - el->el_line.lastchar, 1, - ce__isword); - while (el->el_line.cursor < cp && - *el->el_line.cursor != '\n') { - if (el->el_search.patlen > - EL_BUFSIZ - 3) { - term_beep(el); - break; - } - el->el_search.patbuf[el->el_search.patlen++] = - *el->el_line.cursor; - *el->el_line.lastchar++ = - *el->el_line.cursor++; - } - el->el_line.cursor = ocursor; - *el->el_line.lastchar = '\0'; - re_refresh(el); - break; - } else if (isglob(*cp)) { - term_beep(el); - break; - } - break; - - default: /* Terminate and execute cmd */ - endcmd[0] = ch; - el_push(el, endcmd); - /* FALLTHROUGH */ - - case 0033: /* ESC: Terminate */ - ret = CC_REFRESH; - done++; - break; - } - break; - } - - while (el->el_line.lastchar > el->el_line.buffer && - *el->el_line.lastchar != '\n') - *el->el_line.lastchar-- = '\0'; - *el->el_line.lastchar = '\0'; - - if (!done) { - - /* Can't search if unmatched '[' */ - for (cp = &el->el_search.patbuf[el->el_search.patlen-1], - ch = ']'; - cp > el->el_search.patbuf; - cp--) - if (*cp == '[' || *cp == ']') { - ch = *cp; - break; - } - if (el->el_search.patlen > 1 && ch != '[') { - if (redo && newdir == dir) { - if (pchar == '?') { /* wrap around */ - el->el_history.eventno = - newdir == ED_SEARCH_PREV_HISTORY ? 0 : 0x7fffffff; - if (hist_get(el) == CC_ERROR) - /* el->el_history.event - * no was fixed by - * first call */ - (void) hist_get(el); - el->el_line.cursor = newdir == - ED_SEARCH_PREV_HISTORY ? - el->el_line.lastchar : - el->el_line.buffer; - } else - el->el_line.cursor += - newdir == - ED_SEARCH_PREV_HISTORY ? - -1 : 1; - } -#ifdef ANCHOR - el->el_search.patbuf[el->el_search.patlen++] = - '.'; - el->el_search.patbuf[el->el_search.patlen++] = - '*'; -#endif - el->el_search.patbuf[el->el_search.patlen] = - '\0'; - if (el->el_line.cursor < el->el_line.buffer || - el->el_line.cursor > el->el_line.lastchar || - (ret = ce_search_line(el, - &el->el_search.patbuf[1], - newdir)) == CC_ERROR) { - /* avoid c_setpat */ - el->el_state.lastcmd = - (el_action_t) newdir; - ret = newdir == ED_SEARCH_PREV_HISTORY ? - ed_search_prev_history(el, 0) : - ed_search_next_history(el, 0); - if (ret != CC_ERROR) { - el->el_line.cursor = newdir == - ED_SEARCH_PREV_HISTORY ? - el->el_line.lastchar : - el->el_line.buffer; - (void) ce_search_line(el, - &el->el_search.patbuf[1], - newdir); - } - } - el->el_search.patbuf[--el->el_search.patlen] = - '\0'; - if (ret == CC_ERROR) { - term_beep(el); - if (el->el_history.eventno != - ohisteventno) { - el->el_history.eventno = - ohisteventno; - if (hist_get(el) == CC_ERROR) - return (CC_ERROR); - } - el->el_line.cursor = ocursor; - pchar = '?'; - } else { - pchar = ':'; - } - } - ret = ce_inc_search(el, newdir); - - if (ret == CC_ERROR && pchar == '?' && oldpchar == ':') - /* - * break abort of failed search at last - * non-failed - */ - ret = CC_NORM; - - } - if (ret == CC_NORM || (ret == CC_ERROR && oldpatlen == 0)) { - /* restore on normal return or error exit */ - pchar = oldpchar; - el->el_search.patlen = oldpatlen; - if (el->el_history.eventno != ohisteventno) { - el->el_history.eventno = ohisteventno; - if (hist_get(el) == CC_ERROR) - return (CC_ERROR); - } - el->el_line.cursor = ocursor; - if (ret == CC_ERROR) - re_refresh(el); - } - if (done || ret != CC_NORM) - return (ret); - } -} - - -/* cv_search(): - * Vi search. - */ -protected el_action_t -cv_search(EditLine *el, int dir) -{ - char ch; - char tmpbuf[EL_BUFSIZ]; - int tmplen; - - tmplen = 0; -#ifdef ANCHOR - tmpbuf[tmplen++] = '.'; - tmpbuf[tmplen++] = '*'; -#endif - - el->el_line.buffer[0] = '\0'; - el->el_line.lastchar = el->el_line.buffer; - el->el_line.cursor = el->el_line.buffer; - el->el_search.patdir = dir; - - c_insert(el, 2); /* prompt + '\n' */ - *el->el_line.cursor++ = '\n'; - *el->el_line.cursor++ = dir == ED_SEARCH_PREV_HISTORY ? '/' : '?'; - re_refresh(el); - -#ifdef ANCHOR -#define LEN 2 -#else -#define LEN 0 -#endif - - tmplen = c_gets(el, &tmpbuf[LEN]) + LEN; - ch = tmpbuf[tmplen]; - tmpbuf[tmplen] = '\0'; - - if (tmplen == LEN) { - /* - * Use the old pattern, but wild-card it. - */ - if (el->el_search.patlen == 0) { - el->el_line.buffer[0] = '\0'; - el->el_line.lastchar = el->el_line.buffer; - el->el_line.cursor = el->el_line.buffer; - re_refresh(el); - return (CC_ERROR); - } -#ifdef ANCHOR - if (el->el_search.patbuf[0] != '.' && - el->el_search.patbuf[0] != '*') { - (void) strncpy(tmpbuf, el->el_search.patbuf, - sizeof(tmpbuf) - 1); - el->el_search.patbuf[0] = '.'; - el->el_search.patbuf[1] = '*'; - (void) strncpy(&el->el_search.patbuf[2], tmpbuf, - EL_BUFSIZ - 3); - el->el_search.patlen++; - el->el_search.patbuf[el->el_search.patlen++] = '.'; - el->el_search.patbuf[el->el_search.patlen++] = '*'; - el->el_search.patbuf[el->el_search.patlen] = '\0'; - } -#endif - } else { -#ifdef ANCHOR - tmpbuf[tmplen++] = '.'; - tmpbuf[tmplen++] = '*'; -#endif - tmpbuf[tmplen] = '\0'; - (void) strncpy(el->el_search.patbuf, tmpbuf, EL_BUFSIZ - 1); - el->el_search.patlen = tmplen; - } - el->el_state.lastcmd = (el_action_t) dir; /* avoid c_setpat */ - el->el_line.cursor = el->el_line.lastchar = el->el_line.buffer; - if ((dir == ED_SEARCH_PREV_HISTORY ? ed_search_prev_history(el, 0) : - ed_search_next_history(el, 0)) == CC_ERROR) { - re_refresh(el); - return (CC_ERROR); - } else { - if (ch == 0033) { - re_refresh(el); - *el->el_line.lastchar++ = '\n'; - *el->el_line.lastchar = '\0'; - re_goto_bottom(el); - return (CC_NEWLINE); - } else - return (CC_REFRESH); - } -} - - -/* ce_search_line(): - * Look for a pattern inside a line - */ -protected el_action_t -ce_search_line(EditLine *el, char *pattern, int dir) -{ - char *cp; - - if (dir == ED_SEARCH_PREV_HISTORY) { - for (cp = el->el_line.cursor; cp >= el->el_line.buffer; cp--) - if (el_match(cp, pattern)) { - el->el_line.cursor = cp; - return (CC_NORM); - } - return (CC_ERROR); - } else { - for (cp = el->el_line.cursor; *cp != '\0' && - cp < el->el_line.limit; cp++) - if (el_match(cp, pattern)) { - el->el_line.cursor = cp; - return (CC_NORM); - } - return (CC_ERROR); - } -} - - -/* cv_repeat_srch(): - * Vi repeat search - */ -protected el_action_t -cv_repeat_srch(EditLine *el, int c) -{ - -#ifdef SDEBUG - (void) fprintf(el->el_errfile, "dir %d patlen %d patbuf %s\n", - c, el->el_search.patlen, el->el_search.patbuf); -#endif - - el->el_state.lastcmd = (el_action_t) c; /* Hack to stop c_setpat */ - el->el_line.lastchar = el->el_line.buffer; - - switch (c) { - case ED_SEARCH_NEXT_HISTORY: - return (ed_search_next_history(el, 0)); - case ED_SEARCH_PREV_HISTORY: - return (ed_search_prev_history(el, 0)); - default: - return (CC_ERROR); - } -} - - -/* cv_csearch_back(): - * Vi character search reverse - */ -protected el_action_t -cv_csearch_back(EditLine *el, int ch, int count, int tflag) -{ - char *cp; - - cp = el->el_line.cursor; - while (count--) { - if (*cp == ch) - cp--; - while (cp > el->el_line.buffer && *cp != ch) - cp--; - } - - if (cp < el->el_line.buffer || (cp == el->el_line.buffer && *cp != ch)) - return (CC_ERROR); - - if (*cp == ch && tflag) - cp++; - - el->el_line.cursor = cp; - - if (el->el_chared.c_vcmd.action & DELETE) { - el->el_line.cursor++; - cv_delfini(el); - return (CC_REFRESH); - } - re_refresh_cursor(el); - return (CC_NORM); -} - - -/* cv_csearch_fwd(): - * Vi character search forward - */ -protected el_action_t -cv_csearch_fwd(EditLine *el, int ch, int count, int tflag) -{ - char *cp; - - cp = el->el_line.cursor; - while (count--) { - if (*cp == ch) - cp++; - while (cp < el->el_line.lastchar && *cp != ch) - cp++; - } - - if (cp >= el->el_line.lastchar) - return (CC_ERROR); - - if (*cp == ch && tflag) - cp--; - - el->el_line.cursor = cp; - - if (el->el_chared.c_vcmd.action & DELETE) { - el->el_line.cursor++; - cv_delfini(el); - return (CC_REFRESH); - } - re_refresh_cursor(el); - return (CC_NORM); -} |