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Diffstat (limited to 'src/dstring.h')
-rw-r--r-- | src/dstring.h | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/src/dstring.h b/src/dstring.h new file mode 100644 index 0000000..39d63f0 --- /dev/null +++ b/src/dstring.h @@ -0,0 +1,51 @@ +/* dstring.h - Dynamic string handling include file. Requires strings.h. + Copyright (C) 1990, 1991, 1992, 2004, 2007, 2010 Free Software + Foundation, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3, or (at your option) + any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public + License along with this program; if not, write to the Free + Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + Boston, MA 02110-1301 USA. */ + +#ifndef NULL +#define NULL 0 +#endif + +/* A dynamic string consists of record that records the size of an + allocated string and the pointer to that string. The actual string + is a normal zero byte terminated string that can be used with the + usual string functions. The major difference is that the + dynamic_string routines know how to get more space if it is needed + by allocating new space and copying the current string. */ + +typedef struct +{ + int ds_length; /* Actual amount of storage allocated. */ + char *ds_string; /* String. */ +} dynamic_string; + + +/* Macros that look similar to the original string functions. + WARNING: These macros work only on pointers to dynamic string records. + If used with a real record, an "&" must be used to get the pointer. */ +#define ds_strlen(s) strlen ((s)->ds_string) +#define ds_strcmp(s1, s2) strcmp ((s1)->ds_string, (s2)->ds_string) +#define ds_strncmp(s1, s2, n) strncmp ((s1)->ds_string, (s2)->ds_string, n) +#define ds_index(s, c) index ((s)->ds_string, c) +#define ds_rindex(s, c) rindex ((s)->ds_string, c) + +void ds_init (dynamic_string *string, int size); +void ds_resize (dynamic_string *string, int size); +char *ds_fgetname (FILE *f, dynamic_string *s); +char *ds_fgets (FILE *f, dynamic_string *s); +char *ds_fgetstr (FILE *f, dynamic_string *s, char eos); |