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/* histlib.h -- internal definitions for the history library. */
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/* Copyright (C) 1989-2009 Free Software Foundation, Inc.
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This file contains the GNU History Library (History), a set of
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routines for managing the text of previously typed lines.
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History is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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History is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with History. If not, see <http://www.gnu.org/licenses/>.
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#if !defined (_HISTLIB_H_)
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#if defined (HAVE_STRING_H)
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#endif /* !HAVE_STRING_H */
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#define STREQ(a, b) (((a)[0] == (b)[0]) && (strcmp ((a), (b)) == 0))
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#define STREQN(a, b, n) (((n) == 0) ? (1) \
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: ((a)[0] == (b)[0]) && (strncmp ((a), (b), (n)) == 0))
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#define savestring(x) strcpy (xmalloc (1 + strlen (x)), (x))
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#define whitespace(c) (((c) == ' ') || ((c) == '\t'))
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#define _rl_digit_p(c) ((c) >= '0' && (c) <= '9')
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#ifndef _rl_digit_value
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#define _rl_digit_value(c) ((c) - '0')
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extern char *strchr ();
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#define member(c, s) ((c) ? ((char *)strchr ((s), (c)) != (char *)NULL) : 0)
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# define FREE(x) if (x) free (x)
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/* Possible history errors passed to hist_error. */
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#define EVENT_NOT_FOUND 0
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#define BAD_WORD_SPEC 1
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#define SUBST_FAILED 2
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#define BAD_MODIFIER 3
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#define NO_PREV_SUBST 4
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/* Possible definitions for history starting point specification. */
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#define ANCHORED_SEARCH 1
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#define NON_ANCHORED_SEARCH 0
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/* Possible definitions for what style of writing the history file we want. */
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#define HISTORY_APPEND 0
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#define HISTORY_OVERWRITE 1
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/* Some variable definitions shared across history source files. */
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extern int history_offset;
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#endif /* !_HISTLIB_H_ */