3 * $Id: anag.h,v 1.5 2004/04/08 01:36:19 mdw Exp $
5 * External definitions for Anag
7 * (c) 2001 Mark Wooding
10 /*----- Licensing notice --------------------------------------------------*
12 * This file is part of Anag: a simple wordgame helper.
14 * Anag is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU General Public License as published by
16 * the Free Software Foundation; either version 2 of the License, or
17 * (at your option) any later version.
19 * Anag is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
24 * You should have received a copy of the GNU General Public License
25 * along with Anag; if not, write to the Free Software Foundation,
26 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
36 /*----- Header files ------------------------------------------------------*/
49 /*----- Data structures ---------------------------------------------------*/
52 int (*func)(struct node */*n*/, const char */*p*/, size_t /*sz*/);
61 #define DSTR_INIT { 0, 0, 0 }
63 /*----- Node types --------------------------------------------------------*/
65 extern node *anagram(const char *const */*av*/);
66 extern node *subgram(const char *const */*av*/);
67 extern node *wildcard(const char *const */*av*/);
68 extern node *trackword(const char *const */*av*/);
69 extern node *mono(const char *const */*av*/);
70 extern node *regexp(const char *const */*av*/);
71 extern node *pcrenode(const char *const */*av*/);
73 /*----- Error reporting ---------------------------------------------------*/
77 * Arguments: @const char *p@ = pointer to program name
81 * Use: Stores what the program's name is.
84 extern void ego(const char */*p*/);
88 * Arguments: @FILE *fp@ = output stream to write on
89 * @const char *p@ = pointer to string to write
91 * Returns: Zero if everything worked, EOF if not.
93 * Use: Writes the string @p@ to the output stream @fp@. Occurrences
94 * of the character `$' in @p@ are replaced by the program name
95 * as reported by @quis@. A `$$' is replaced by a single `$'
99 extern int pquis(FILE */*fp*/, const char */*p*/);
103 * Arguments: @const char *f@ = a @printf@-style format string
104 * @...@ = other arguments
108 * Use: Reports an error and exits.
111 extern void die(const char */*f*/, ...);
113 /*----- Memory allocation -------------------------------------------------*/
115 /* --- @xmalloc@ --- *
117 * Arguments: @size_t sz@ = size of block to allocate
119 * Returns: Pointer to allocated block.
121 * Use: Allocates memory. If there's not enough memory, the
125 extern void *xmalloc(size_t /*sz*/);
127 /* --- @xrealloc@ --- *
129 * Arguments: @void *p@ = a pointer to allocated memory
130 * @size_t sz@ = new size of block wanted
132 * Returns: Pointer to resized block.
134 * Use: Resizes an allocated block. If there's not enough memory,
138 extern void *xrealloc(void */*p*/, size_t /*sz*/);
140 /*----- Dynamic string handling -------------------------------------------*/
142 /* --- @dstr_destroy@ --- *
144 * Arguments: @dstr *d@ = pointer to a dynamic string block
148 * Use: Reclaims the space used by a dynamic string.
151 extern void dstr_destroy(dstr */*d*/);
153 /* --- @dstr_reset@ --- *
155 * Arguments: @dstr *d@ = pointer to a dynamic string block
159 * Use: Resets a string so that new data gets put at the beginning.
162 extern void dstr_reset(dstr */*d*/);
164 /* --- @dstr_ensure@ --- *
166 * Arguments: @dstr *d@ = pointer to a dynamic string block
167 * @size_t sz@ = amount of free space to ensure
171 * Use: Ensures that at least @sz@ bytes are available in the
175 extern void dstr_ensure(dstr */*d*/, size_t /*sz*/);
177 /* --- @dstr_putline@ --- *
179 * Arguments: @dstr *d@ = pointer to a dynamic string block
180 * @FILE *fp@ = a stream to read from
182 * Returns: The number of characters read into the buffer, or @EOF@ if
183 * end-of-file was reached before any characters were read.
185 * Use: Appends the next line from the given input stream to the
186 * string. A trailing newline is not added; a trailing null
187 * byte is appended, as for @dstr_putz@.
190 extern int dstr_putline(dstr */*d*/, FILE */*fp*/);
192 /*----- That's all, folks -------------------------------------------------*/