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Diffstat (limited to 'bin/1sh/libedit/search.c')
| -rw-r--r-- | bin/1sh/libedit/search.c | 641 |
1 files changed, 0 insertions, 641 deletions
diff --git a/bin/1sh/libedit/search.c b/bin/1sh/libedit/search.c deleted file mode 100644 index 5226cf5f..00000000 --- a/bin/1sh/libedit/search.c +++ /dev/null @@ -1,641 +0,0 @@ -/* $NetBSD: search.c,v 1.47 2016/05/09 21:46:56 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. 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 1.47 2016/05/09 21:46:56 christos Exp $"); -#endif -#endif /* not lint && not SCCSID */ - -/* - * search.c: History and character search functions - */ -#include <stdlib.h> -#include <string.h> -#if defined(REGEX) -#include <regex.h> -#elif defined(REGEXP) -#include <regexp.h> -#endif - -#include "el.h" -#include "common.h" -#include "fcns.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 - */ -libedit_private int -search_init(EditLine *el) -{ - - el->el_search.patbuf = el_malloc(EL_BUFSIZ * - sizeof(*el->el_search.patbuf)); - if (el->el_search.patbuf == NULL) - return -1; - el->el_search.patbuf[0] = L'\0'; - el->el_search.patlen = 0; - el->el_search.patdir = -1; - el->el_search.chacha = L'\0'; - el->el_search.chadir = CHAR_FWD; - el->el_search.chatflg = 0; - return 0; -} - - -/* search_end(): - * Initialize the search stuff - */ -libedit_private void -search_end(EditLine *el) -{ - - el_free(el->el_search.patbuf); - el->el_search.patbuf = NULL; -} - - -#ifdef REGEXP -/* regerror(): - * Handle regular expression errors - */ -void -/*ARGSUSED*/ -regerror(const char *msg) -{ -} -#endif - - -/* el_match(): - * Return if string matches pattern - */ -libedit_private int -el_match(const wchar_t *str, const wchar_t *pat) -{ - static ct_buffer_t conv; -#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 (wcsstr(str, pat) != 0) - return 1; - -#if defined(REGEX) - if (regcomp(&re, ct_encode_string(pat, &conv), 0) == 0) { - rv = regexec(&re, ct_encode_string(str, &conv), (size_t)0, NULL, - 0) == 0; - regfree(&re); - } else { - rv = 0; - } - return rv; -#elif defined(REGEXP) - if ((re = regcomp(ct_encode_string(pat, &conv))) != NULL) { - rv = regexec(re, ct_encode_string(str, &conv)); - el_free(re); - } else { - rv = 0; - } - return rv; -#else - if (re_comp(ct_encode_string(pat, &conv)) != NULL) - return 0; - else - return re_exec(ct_encode_string(str, &conv)) == 1; -#endif -} - - -/* c_hmatch(): - * return True if the pattern matches the prefix - */ -libedit_private int -c_hmatch(EditLine *el, const wchar_t *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 - */ -libedit_private 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 = - (size_t)(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) wcsncpy(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 = wcslen(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 - */ -libedit_private el_action_t -ce_inc_search(EditLine *el, int dir) -{ - static const wchar_t STRfwd[] = L"fwd", STRbck[] = L"bck"; - static wchar_t pchar = L':'; /* ':' = normal, '?' = failed */ - static wchar_t endcmd[2] = {'\0', '\0'}; - wchar_t *ocursor = el->el_line.cursor, oldpchar = pchar, ch; - const wchar_t *cp; - - el_action_t ret = CC_NORM; - - int ohisteventno = el->el_history.eventno; - size_t oldpatlen = el->el_search.patlen; - int newdir = dir; - int done, redo; - - if (el->el_line.lastchar + sizeof(STRfwd) / - sizeof(*el->el_line.lastchar) + 2 + - el->el_search.patlen >= el->el_line.limit) - return CC_ERROR; - - for (;;) { - - if (el->el_search.patlen == 0) { /* first round */ - pchar = ':'; -#ifdef ANCHOR -#define LEN 2 - el->el_search.patbuf[el->el_search.patlen++] = '.'; - el->el_search.patbuf[el->el_search.patlen++] = '*'; -#else -#define LEN 0 -#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[LEN]; - 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_wgetc(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 - LEN) - terminal_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 EM_DELETE_PREV_CHAR: - case ED_DELETE_PREV_CHAR: - if (el->el_search.patlen > LEN) - done++; - else - terminal_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[LEN];; cp++) - if (cp >= &el->el_search.patbuf[ - el->el_search.patlen]) { - el->el_line.cursor += - el->el_search.patlen - LEN - 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 - LEN) { - terminal_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)) { - terminal_beep(el); - break; - } - break; - - default: /* Terminate and execute cmd */ - endcmd[0] = ch; - el_wpush(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 = L']'; - cp >= &el->el_search.patbuf[LEN]; - cp--) - if (*cp == '[' || *cp == ']') { - ch = *cp; - break; - } - if (el->el_search.patlen > LEN && ch != L'[') { - 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, newdir)) - == CC_ERROR) { - /* avoid c_setpat */ - el->el_state.lastcmd = - (el_action_t) newdir; - ret = (el_action_t) - (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, - newdir); - } - } - el->el_search.patlen -= LEN; - el->el_search.patbuf[el->el_search.patlen] = - '\0'; - if (ret == CC_ERROR) { - terminal_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. - */ -libedit_private el_action_t -cv_search(EditLine *el, int dir) -{ - wchar_t ch; - wchar_t tmpbuf[EL_BUFSIZ]; - ssize_t tmplen; - -#ifdef ANCHOR - tmpbuf[0] = '.'; - tmpbuf[1] = '*'; -#endif - tmplen = LEN; - - el->el_search.patdir = dir; - - tmplen = c_gets(el, &tmpbuf[LEN], - dir == ED_SEARCH_PREV_HISTORY ? L"\n/" : L"\n?" ); - if (tmplen == -1) - return CC_REFRESH; - - tmplen += LEN; - ch = tmpbuf[tmplen]; - tmpbuf[tmplen] = '\0'; - - if (tmplen == LEN) { - /* - * Use the old pattern, but wild-card it. - */ - if (el->el_search.patlen == 0) { - re_refresh(el); - return CC_ERROR; - } -#ifdef ANCHOR - if (el->el_search.patbuf[0] != '.' && - el->el_search.patbuf[0] != '*') { - (void) wcsncpy(tmpbuf, el->el_search.patbuf, - sizeof(tmpbuf) / sizeof(*tmpbuf) - 1); - el->el_search.patbuf[0] = '.'; - el->el_search.patbuf[1] = '*'; - (void) wcsncpy(&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) wcsncpy(el->el_search.patbuf, tmpbuf, EL_BUFSIZ - 1); - el->el_search.patlen = (size_t)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; - } - if (ch == 0033) { - re_refresh(el); - return ed_newline(el, 0); - } - return CC_REFRESH; -} - - -/* ce_search_line(): - * Look for a pattern inside a line - */ -libedit_private el_action_t -ce_search_line(EditLine *el, int dir) -{ - wchar_t *cp = el->el_line.cursor; - wchar_t *pattern = el->el_search.patbuf; - wchar_t oc, *ocp; -#ifdef ANCHOR - ocp = &pattern[1]; - oc = *ocp; - *ocp = '^'; -#else - ocp = pattern; - oc = *ocp; -#endif - - if (dir == ED_SEARCH_PREV_HISTORY) { - for (; cp >= el->el_line.buffer; cp--) { - if (el_match(cp, ocp)) { - *ocp = oc; - el->el_line.cursor = cp; - return CC_NORM; - } - } - *ocp = oc; - return CC_ERROR; - } else { - for (; *cp != '\0' && cp < el->el_line.limit; cp++) { - if (el_match(cp, ocp)) { - *ocp = oc; - el->el_line.cursor = cp; - return CC_NORM; - } - } - *ocp = oc; - return CC_ERROR; - } -} - - -/* cv_repeat_srch(): - * Vi repeat search - */ -libedit_private el_action_t -cv_repeat_srch(EditLine *el, wint_t c) -{ - -#ifdef SDEBUG - (void) fprintf(el->el_errfile, "dir %d patlen %d patbuf %s\n", - c, el->el_search.patlen, ct_encode_string(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(): - * Vi character search - */ -libedit_private el_action_t -cv_csearch(EditLine *el, int direction, wint_t ch, int count, int tflag) -{ - wchar_t *cp; - - if (ch == 0) - return CC_ERROR; - - if (ch == (wint_t)-1) { - if (el_wgetc(el, &ch) != 1) - return ed_end_of_file(el, 0); - } - - /* Save for ';' and ',' commands */ - el->el_search.chacha = ch; - el->el_search.chadir = direction; - el->el_search.chatflg = (char)tflag; - - cp = el->el_line.cursor; - while (count--) { - if ((wint_t)*cp == ch) - cp += direction; - for (;;cp += direction) { - if (cp >= el->el_line.lastchar) - return CC_ERROR; - if (cp < el->el_line.buffer) - return CC_ERROR; - if ((wint_t)*cp == ch) - break; - } - } - - if (tflag) - cp -= direction; - - el->el_line.cursor = cp; - - if (el->el_chared.c_vcmd.action != NOP) { - if (direction > 0) - el->el_line.cursor++; - cv_delfini(el); - return CC_REFRESH; - } - return CC_CURSOR; -} |