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Change the way the built-in history works; some programs enter history

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with the trailing newline, others don't so don't make any assumptions
about it when printing. Also print the correct event number (generated),
separate the event number from the event with a tab, and visually encode
the string (don't encode tabs and spaces though).
This commit is contained in:
christos 2016-11-07 15:30:18 +00:00
parent 50637e2302
commit f09a36d8a1
1 changed files with 27 additions and 5 deletions
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32
lib/libedit/hist.c
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@ -1,4 +1,4 @@
/* $NetBSD: hist.c,v 1.29 2016/05/09 21:46:56 christos Exp $ */
/* $NetBSD: hist.c,v 1.30 2016/11/07 15:30:18 christos Exp $ */
/*-
* Copyright (c) 1992, 1993
@ -37,7 +37,7 @@
#if 0
static char sccsid[] = "@(#)hist.c 8.1 (Berkeley) 6/4/93";
#else
__RCSID("$NetBSD: hist.c,v 1.29 2016/05/09 21:46:56 christos Exp $");
__RCSID("$NetBSD: hist.c,v 1.30 2016/11/07 15:30:18 christos Exp $");
#endif
#endif /* not lint && not SCCSID */
@ -46,6 +46,7 @@ __RCSID("$NetBSD: hist.c,v 1.29 2016/05/09 21:46:56 christos Exp $");
*/
#include <stdlib.h>
#include <string.h>
#include <vis.h>
#include "el.h"
@ -166,11 +167,32 @@ hist_command(EditLine *el, int argc, const wchar_t **argv)
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))
(void) fprintf(el->el_outfile, "%d %s",
el->el_history.ev.num, ct_encode_string(str, &el->el_scratch));
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;
}