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1 /* An abstract string datatype.
2    Copyright (C) 1998-2017 Free Software Foundation, Inc.
3    Contributed by Mark Mitchell (mark@markmitchell.com).
4 
5 This file is part of GCC.
6 
7 GCC 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 GCC is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 GNU General Public License for more details.
16 
17 You should have received a copy of the GNU General Public License
18 along with GCC; see the file COPYING.  If not, write to
19 the Free Software Foundation, 51 Franklin Street - Fifth Floor,
20 Boston, MA 02110-1301, USA.  */
21 
22 #ifndef DYN_STRING_H
23 #define DYN_STRING_H
24 
25 #ifdef __cplusplus
26 extern "C" {
27 #endif
28 
29 typedef struct dyn_string
30 {
31   int allocated;	/* The amount of space allocated for the string.  */
32   int length;		/* The actual length of the string.  */
33   char *s;		/* The string itself, NUL-terminated.  */
34 }* dyn_string_t;
35 
36 /* The length STR, in bytes, not including the terminating NUL.  */
37 #define dyn_string_length(STR)                                          \
38   ((STR)->length)
39 
40 /* The NTBS in which the contents of STR are stored.  */
41 #define dyn_string_buf(STR)                                             \
42   ((STR)->s)
43 
44 /* Compare DS1 to DS2 with strcmp.  */
45 #define dyn_string_compare(DS1, DS2)                                    \
46   (strcmp ((DS1)->s, (DS2)->s))
47 
48 
49 extern int dyn_string_init (struct dyn_string *, int);
50 extern dyn_string_t dyn_string_new (int);
51 extern void dyn_string_delete (dyn_string_t);
52 extern char *dyn_string_release (dyn_string_t);
53 extern dyn_string_t dyn_string_resize (dyn_string_t, int);
54 extern void dyn_string_clear (dyn_string_t);
55 extern int dyn_string_copy (dyn_string_t, dyn_string_t);
56 extern int dyn_string_copy_cstr (dyn_string_t, const char *);
57 extern int dyn_string_prepend (dyn_string_t, dyn_string_t);
58 extern int dyn_string_prepend_cstr (dyn_string_t, const char *);
59 extern int dyn_string_insert (dyn_string_t, int, dyn_string_t);
60 extern int dyn_string_insert_cstr (dyn_string_t, int, const char *);
61 extern int dyn_string_insert_char (dyn_string_t, int, int);
62 extern int dyn_string_append (dyn_string_t, dyn_string_t);
63 extern int dyn_string_append_cstr (dyn_string_t, const char *);
64 extern int dyn_string_append_char (dyn_string_t, int);
65 extern int dyn_string_substring (dyn_string_t,  dyn_string_t, int, int);
66 extern int dyn_string_eq (dyn_string_t, dyn_string_t);
67 
68 #ifdef __cplusplus
69 }
70 #endif
71 
72 #endif /* !defined (DYN_STRING_H) */
73