1 /* histlib.h -- internal definitions for the history library. */ 2 /* Copyright (C) 1989, 1992 Free Software Foundation, Inc. 3 4 This file contains the GNU History Library (the Library), a set of 5 routines for managing the text of previously typed lines. 6 7 The Library is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 2, or (at your option) 10 any later version. 11 12 The Library is distributed in the hope that it will be useful, but 13 WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 General Public License for more details. 16 17 The GNU General Public License is often shipped with GNU software, and 18 is generally kept in a file called COPYING or LICENSE. If you do not 19 have a copy of the license, write to the Free Software Foundation, 20 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA. */ 21 22 #if !defined (_HISTLIB_H_) 23 #define _HISTLIB_H_ 24 25 #if defined (HAVE_STRING_H) 26 # include <string.h> 27 #else 28 # include <strings.h> 29 #endif /* !HAVE_STRING_H */ 30 31 #if !defined (STREQ) 32 #define STREQ(a, b) (((a)[0] == (b)[0]) && (strcmp ((a), (b)) == 0)) 33 #define STREQN(a, b, n) (((n) == 0) ? (1) \ 34 : ((a)[0] == (b)[0]) && (strncmp ((a), (b), (n)) == 0)) 35 #endif 36 37 #ifndef savestring 38 #define savestring(x) strcpy (xmalloc (1 + strlen (x)), (x)) 39 #endif 40 41 #ifndef whitespace 42 #define whitespace(c) (((c) == ' ') || ((c) == '\t')) 43 #endif 44 45 #ifndef _rl_digit_p 46 #define _rl_digit_p(c) ((c) >= '0' && (c) <= '9') 47 #endif 48 49 #ifndef _rl_digit_value 50 #define _rl_digit_value(c) ((c) - '0') 51 #endif 52 53 #ifndef member 54 # ifndef strchr 55 extern char *strchr (); 56 # endif 57 #define member(c, s) ((c) ? ((char *)strchr ((s), (c)) != (char *)NULL) : 0) 58 #endif 59 60 #ifndef FREE 61 # define FREE(x) if (x) free (x) 62 #endif 63 64 /* Possible history errors passed to hist_error. */ 65 #define EVENT_NOT_FOUND 0 66 #define BAD_WORD_SPEC 1 67 #define SUBST_FAILED 2 68 #define BAD_MODIFIER 3 69 #define NO_PREV_SUBST 4 70 71 /* Possible definitions for history starting point specification. */ 72 #define ANCHORED_SEARCH 1 73 #define NON_ANCHORED_SEARCH 0 74 75 /* Possible definitions for what style of writing the history file we want. */ 76 #define HISTORY_APPEND 0 77 #define HISTORY_OVERWRITE 1 78 79 /* Some variable definitions shared across history source files. */ 80 extern int history_offset; 81 82 #endif /* !_HISTLIB_H_ */ 83