diff options
Diffstat (limited to 'lib/libedit/hist.c')
| -rw-r--r-- | lib/libedit/hist.c | 170 |
1 files changed, 0 insertions, 170 deletions
diff --git a/lib/libedit/hist.c b/lib/libedit/hist.c deleted file mode 100644 index 27dacd1..0000000 --- a/lib/libedit/hist.c +++ /dev/null @@ -1,170 +0,0 @@ -/*- - * 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. - */ - -#if !defined(lint) && !defined(SCCSID) -static char sccsid[] = "@(#)hist.c 8.1 (Berkeley) 6/4/93"; -#endif /* not lint && not SCCSID */ - -/* - * hist.c: History access functions - */ -#include "sys.h" -#include <stdlib.h> -#include "el.h" - -/* hist_init(): - * Initialization function. - */ -protected int -hist_init(el) - EditLine *el; -{ - el->el_history.fun = NULL; - el->el_history.ref = NULL; - el->el_history.buf = (char *) el_malloc(EL_BUFSIZ); - el->el_history.last = el->el_history.buf; - return 0; -} - - -/* hist_end(): - * clean up history; - */ -protected void -hist_end(el) - EditLine *el; -{ - el_free((ptr_t) el->el_history.buf); - el->el_history.buf = NULL; -} - - -/* hist_set(): - * Set new history interface - */ -protected int -hist_set(el, fun, ptr) - EditLine *el; - hist_fun_t fun; - ptr_t 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. - */ -protected el_action_t -hist_get(el) - EditLine *el; -{ - const char *hp; - int h; - - if (el->el_history.eventno == 0) { /* if really the current line */ - (void) strncpy(el->el_line.buffer, el->el_history.buf, EL_BUFSIZ); - 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) { - el->el_history.eventno = h; - return CC_ERROR; - } - - (void) strncpy(el->el_line.buffer, hp, EL_BUFSIZ); - el->el_line.lastchar = el->el_line.buffer + strlen(el->el_line.buffer); - - if (el->el_line.lastchar > el->el_line.buffer) { - if (el->el_line.lastchar[-1] == '\n') - el->el_line.lastchar--; - if (el->el_line.lastchar[-1] == ' ') - el->el_line.lastchar--; - if (el->el_line.lastchar < el->el_line.buffer) - el->el_line.lastchar = el->el_line.buffer; - } - -#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; -} - -/* hist_list() - * List history entries - */ -protected int -/*ARGSUSED*/ -hist_list(el, argc, argv) - EditLine *el; - int argc; - char **argv; -{ - const char *str; - - if (el->el_history.ref == NULL) - return -1; - for (str = HIST_LAST(el); str != NULL; str = HIST_PREV(el)) - (void) fprintf(el->el_outfile, "%d %s", el->el_history.ev->num, str); - return 0; -} |
