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Bash-4.4 distribution sources and documentation

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This commit is contained in:
Chet Ramey 2016-09-15 16:59:08 -04:00
commit a0c0a00fc4
588 changed files with 130746 additions and 80164 deletions
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54
lib/readline/history.c
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@ -1,6 +1,6 @@
/* history.c -- standalone history library */
/* Copyright (C) 1989-2011 Free Software Foundation, Inc.
/* Copyright (C) 1989-2015 Free Software Foundation, Inc.
This file contains the GNU History Library (History), a set of
routines for managing the text of previously typed lines.
@ -43,11 +43,20 @@
# include <unistd.h>
#endif
#include <errno.h>
#include "history.h"
#include "histlib.h"
#include "xmalloc.h"
#if !defined (errno)
extern int errno;
#endif
/* How big to make the_history when we first allocate it. */
#define DEFAULT_HISTORY_INITIAL_SIZE 502
/* The number of slots to increase the_history by. */
#define DEFAULT_HISTORY_GROW_SIZE 50
@ -236,7 +245,10 @@ history_get_time (hist)
ts = hist->timestamp;
if (ts[0] != history_comment_char)
return 0;
errno = 0;
t = (time_t) strtol (ts + 1, (char **)NULL, 10); /* XXX - should use strtol() here */
if (errno == ERANGE)
return (time_t)0;
return t;
}
@ -279,9 +291,14 @@ add_history (string)
if (the_history[0])
(void) free_history_entry (the_history[0]);
/* Copy the rest of the entries, moving down one slot. */
/* Copy the rest of the entries, moving down one slot. Copy includes
trailing NULL. */
#if 0
for (i = 0; i < history_length; i++)
the_history[i] = the_history[i + 1];
#else
memmove (the_history, the_history + 1, history_length * sizeof (HIST_ENTRY *));
#endif
history_base++;
}
@ -289,7 +306,10 @@ add_history (string)
{
if (history_size == 0)
{
history_size = DEFAULT_HISTORY_GROW_SIZE;
if (history_stifled && history_max_entries > 0)
history_size = history_max_entries + 2;
else
history_size = DEFAULT_HISTORY_INITIAL_SIZE;
the_history = (HIST_ENTRY **)xmalloc (history_size * sizeof (HIST_ENTRY *));
history_length = 1;
}
@ -305,7 +325,7 @@ add_history (string)
}
}
temp = alloc_history_entry (string, hist_inittime ());
temp = alloc_history_entry ((char *)string, hist_inittime ());
the_history[history_length] = (HIST_ENTRY *)NULL;
the_history[history_length - 1] = temp;
@ -387,6 +407,30 @@ replace_history_entry (which, line, data)
return (old_value);
}
/* Append LINE to the history line at offset WHICH, adding a newline to the
end of the current line first. This can be used to construct multi-line
history entries while reading lines from the history file. */
void
_hs_append_history_line (which, line)
int which;
const char *line;
{
HIST_ENTRY *hent;
size_t newlen, curlen;
char *newline;
hent = the_history[which];
curlen = strlen (hent->line);
newlen = curlen + strlen (line) + 2;
newline = realloc (hent->line, newlen);
if (newline)
{
hent->line = newline;
hent->line[curlen++] = '\n';
strcpy (hent->line + curlen, line);
}
}
/* Replace the DATA in the specified history entries, replacing OLD with
NEW. WHICH says which one(s) to replace: WHICH == -1 means to replace
all of the history entries where entry->data == OLD; WHICH == -2 means
@ -394,7 +438,7 @@ replace_history_entry (which, line, data)
WHICH >= 0 means to replace that particular history entry's data, as
long as it matches OLD. */
void
replace_history_data (which, old, new)
_hs_replace_history_data (which, old, new)
int which;
histdata_t *old, *new;
{