diff options
Diffstat (limited to 'bin/1sh/libedit/hist.c')
| -rw-r--r-- | bin/1sh/libedit/hist.c | 252 |
1 files changed, 0 insertions, 252 deletions
diff --git a/bin/1sh/libedit/hist.c b/bin/1sh/libedit/hist.c deleted file mode 100644 index 3c9db7dc..00000000 --- a/bin/1sh/libedit/hist.c +++ /dev/null @@ -1,252 +0,0 @@ -/* $NetBSD: hist.c,v 1.32 2017/03/05 19:23:58 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. 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[] = "@(#)hist.c 8.1 (Berkeley) 6/4/93"; -#else -__RCSID("$NetBSD: hist.c,v 1.32 2017/03/05 19:23:58 christos Exp $"); -#endif -#endif /* not lint && not SCCSID */ - -/* - * hist.c: History access functions - */ -#include <stdlib.h> -#include <string.h> -#include <vis.h> - -#include "el.h" - -/* hist_init(): - * Initialization function. - */ -libedit_private int -hist_init(EditLine *el) -{ - - el->el_history.fun = NULL; - el->el_history.ref = NULL; - el->el_history.buf = el_malloc(EL_BUFSIZ * sizeof(*el->el_history.buf)); - el->el_history.sz = EL_BUFSIZ; - if (el->el_history.buf == NULL) - return -1; - el->el_history.last = el->el_history.buf; - return 0; -} - - -/* hist_end(): - * clean up history; - */ -libedit_private void -hist_end(EditLine *el) -{ - - el_free(el->el_history.buf); - el->el_history.buf = NULL; -} - - -/* hist_set(): - * Set new history interface - */ -libedit_private int -hist_set(EditLine *el, hist_fun_t fun, void *ptr) -{ - - el->el_history.ref = ptr; - el->el_history.fun = fun; - return 0; -} - - -/* hist_get(): - * Get a history line and update it in the buffer. - * eventno tells us the event to get. - */ -libedit_private el_action_t -hist_get(EditLine *el) -{ - const wchar_t *hp; - int h; - size_t blen, hlen; - - if (el->el_history.eventno == 0) { /* if really the current line */ - (void) wcsncpy(el->el_line.buffer, el->el_history.buf, - el->el_history.sz); - el->el_line.lastchar = el->el_line.buffer + - (el->el_history.last - el->el_history.buf); - -#ifdef KSHVI - if (el->el_map.type == MAP_VI) - el->el_line.cursor = el->el_line.buffer; - else -#endif /* KSHVI */ - el->el_line.cursor = el->el_line.lastchar; - - return CC_REFRESH; - } - if (el->el_history.ref == NULL) - return CC_ERROR; - - hp = HIST_FIRST(el); - - if (hp == NULL) - return CC_ERROR; - - for (h = 1; h < el->el_history.eventno; h++) - if ((hp = HIST_NEXT(el)) == NULL) - goto out; - - hlen = wcslen(hp) + 1; - blen = (size_t)(el->el_line.limit - el->el_line.buffer); - if (hlen > blen && !ch_enlargebufs(el, hlen)) - goto out; - - memcpy(el->el_line.buffer, hp, hlen * sizeof(*hp)); - el->el_line.lastchar = el->el_line.buffer + hlen - 1; - - if (el->el_line.lastchar > el->el_line.buffer - && el->el_line.lastchar[-1] == '\n') - el->el_line.lastchar--; - if (el->el_line.lastchar > el->el_line.buffer - && el->el_line.lastchar[-1] == ' ') - el->el_line.lastchar--; -#ifdef KSHVI - if (el->el_map.type == MAP_VI) - el->el_line.cursor = el->el_line.buffer; - else -#endif /* KSHVI */ - el->el_line.cursor = el->el_line.lastchar; - - return CC_REFRESH; -out: - el->el_history.eventno = h; - return CC_ERROR; - -} - - -/* hist_command() - * process a history command - */ -libedit_private int -hist_command(EditLine *el, int argc, const wchar_t **argv) -{ - const wchar_t *str; - int num; - HistEventW ev; - - if (el->el_history.ref == NULL) - return -1; - - if (argc == 1 || wcscmp(argv[1], L"list") == 0) { - size_t maxlen = 0; - char *buf = NULL; - int hno = 1; - /* List history entries */ - - for (str = HIST_LAST(el); str != NULL; str = HIST_PREV(el)) { - char *ptr = - ct_encode_string(str, &el->el_scratch); - size_t len = strlen(ptr); - if (len > 0 && ptr[len - 1] == '\n') - ptr[--len] = '\0'; - len = len * 4 + 1; - if (len >= maxlen) { - maxlen = len + 1024; - char *nbuf = el_realloc(buf, maxlen); - if (nbuf == NULL) { - el_free(buf); - return -1; - } - buf = nbuf; - } - strvis(buf, ptr, VIS_NL); - (void) fprintf(el->el_outfile, "%d\t%s\n", - hno++, buf); - } - el_free(buf); - return 0; - } - - if (argc != 3) - return -1; - - num = (int)wcstol(argv[2], NULL, 0); - - if (wcscmp(argv[1], L"size") == 0) - return history_w(el->el_history.ref, &ev, H_SETSIZE, num); - - if (wcscmp(argv[1], L"unique") == 0) - return history_w(el->el_history.ref, &ev, H_SETUNIQUE, num); - - return -1; -} - -/* hist_enlargebuf() - * Enlarge history buffer to specified value. Called from el_enlargebufs(). - * Return 0 for failure, 1 for success. - */ -libedit_private int -/*ARGSUSED*/ -hist_enlargebuf(EditLine *el, size_t oldsz, size_t newsz) -{ - wchar_t *newbuf; - - newbuf = el_realloc(el->el_history.buf, newsz * sizeof(*newbuf)); - if (!newbuf) - return 0; - - (void) memset(&newbuf[oldsz], '\0', (newsz - oldsz) * sizeof(*newbuf)); - - el->el_history.last = newbuf + - (el->el_history.last - el->el_history.buf); - el->el_history.buf = newbuf; - el->el_history.sz = newsz; - - return 1; -} - -libedit_private wchar_t * -hist_convert(EditLine *el, int fn, void *arg) -{ - HistEventW ev; - if ((*(el)->el_history.fun)((el)->el_history.ref, &ev, fn, arg) == -1) - return NULL; - return ct_decode_string((const char *)(const void *)ev.str, - &el->el_scratch); -} |