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/* sts.c -- Implementation File (module.c template V1.0)
Copyright (C) 1995 Free Software Foundation, Inc.
Contributed by James Craig Burley.
This file is part of GNU Fortran.
GNU Fortran 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 2, or (at your option)
any later version.
GNU Fortran 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 GNU Fortran; see the file COPYING. If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
02111-1307, USA.
Related Modules:
None (despite the name, it doesn't really depend on ffest*)
Description:
Provides an arbitrary-length string facility for the limited needs of
GNU Fortran FORMAT statement generation.
Modifications:
*/
/* Include files. */
#include "proj.h"
#include "sts.h"
#include "com.h"
#include "malloc.h"
/* Externals defined here. */
/* Simple definitions and enumerations. */
/* Internal typedefs. */
/* Private include files. */
/* Internal structure definitions. */
/* Static objects accessed by functions in this module. */
/* Static functions (internal). */
/* Internal macros. */
/* ffests_kill -- Kill a varying-length string
ffests s;
ffests_kill(s);
The storage associated with the string <s> is freed. */
void
ffests_kill (ffests s)
{
if (s->text_ != NULL)
malloc_kill_ksr (s->pool_, s->text_, s->max_);
}
/* ffests_new -- Make a varying-length string
ffests s;
ffests_new(s,malloc_pool_image(),0);
The string is initialized to hold, in this case, 0 characters, and
current and future heap manipulations to hold the string will use
the image pool. */
void
ffests_new (ffests s, mallocPool pool, ffestsLength size)
{
s->pool_ = pool;
s->len_ = 0;
s->max_ = size;
if (size == 0)
s->text_ = NULL;
else
s->text_ = malloc_new_ksr (pool, "ffests", size);
}
/* ffests_printf -- printf ("...%ld...",(long)) to a string
ffests s;
ffests_printf (s,"...%ld...",1);
Like printf, but into a string. */
void
ffests_printf (ffests s, const char *ctl, ...)
{
char *string;
va_list ap;
va_start (ap, ctl);
if (vasprintf (&string, ctl, ap) == 0)
abort ();
va_end (ap);
ffests_puts (s, string);
free (string);
}
/* ffests_putc -- Put a single character into string
ffests s;
ffests_putc(s,'*'); */
void
ffests_putc (ffests s, char c)
{
ffests_puttext (s, &c, 1);
}
/* ffests_puts -- Put a zero-terminated (C-style) string into string
ffests s;
ffests_puts(s,"append me"); */
void
ffests_puts (ffests s, const char *string)
{
ffests_puttext (s, string, strlen (string));
}
/* ffests_puttext -- Put a number of characters into string
ffests s;
ffests_puttext(s,"hi there",8);
The string need not be 0-terminated, because the passed length is used,
and may be 0. */
void
ffests_puttext (ffests s, const char *text, ffestsLength length)
{
ffestsLength newlen;
ffestsLength newmax;
if (length <= 0)
return;
newlen = s->len_ + length;
if (newlen > s->max_)
{
if (s->text_ == NULL)
{
s->max_ = 40;
s->text_ = malloc_new_ksr (s->pool_, "ffests", s->max_);
}
else
{
newmax = s->max_ << 1;
while (newmax < newlen)
newmax <<= 1;
s->text_ = malloc_resize_ksr (s->pool_, s->text_, newmax, s->max_);
s->max_ = newmax;
}
}
memcpy (s->text_ + s->len_, text, length);
s->len_ = newlen;
}
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