X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~mdw/git/mLib/blobdiff_plain/002eaee36ed12caf6cf7f2a7188111240a427d80..4aee39a18184ae8595936a03ad254c27d149a0eb:/dstr.c

diff --git a/dstr.c b/dstr.c
index 82f0805..cda48a2 100644
--- a/dstr.c
+++ b/dstr.c
@@ -1,13 +1,13 @@
 /* -*-c-*-
  *
- * $Id: dstr.c,v 1.10 1999/10/04 21:44:47 mdw Exp $
+ * $Id: dstr.c,v 1.16 2004/04/08 01:36:11 mdw Exp $
  *
  * Handle dynamically growing strings
  *
  * (c) 1998 Straylight/Edgeware
  */
 
-/*----- Licensing notice --------------------------------------------------* 
+/*----- Licensing notice --------------------------------------------------*
  *
  * This file is part of the mLib utilities library.
  *
@@ -15,54 +15,18 @@
  * it under the terms of the GNU Library General Public License as
  * published by the Free Software Foundation; either version 2 of the
  * License, or (at your option) any later version.
- * 
+ *
  * mLib 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 Library General Public License for more details.
- * 
+ *
  * You should have received a copy of the GNU Library General Public
  * License along with mLib; if not, write to the Free
  * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
  * MA 02111-1307, USA.
  */
 
-/*----- Revision history --------------------------------------------------*
- *
- * $Log: dstr.c,v $
- * Revision 1.10  1999/10/04 21:44:47  mdw
- * Move `dstr_putf' and `dstr_vputf' into a separate source file.
- *
- * Revision 1.9  1999/07/06 19:16:06  mdw
- * Simplify buffer-growing algorithm.  Just double it each time.
- *
- * Revision 1.8  1999/06/01 09:47:52  mdw
- * Fix nasty bugs in `dstr_vputf'.
- *
- * Revision 1.7  1999/05/21 22:14:30  mdw
- * Take advantage of the new dynamic string macros.
- *
- * Revision 1.6  1999/05/21 08:38:33  mdw
- * Implement some more functions in terms of macros.
- *
- * Revision 1.5  1999/05/13 22:47:57  mdw
- * Misc documentation fixes.  Change `-ise' to `-ize' throughout.
- *
- * Revision 1.4  1999/05/06 19:51:35  mdw
- * Reformatted the LGPL notice a little bit.
- *
- * Revision 1.3  1999/05/05 18:50:31  mdw
- * Change licensing conditions to LGPL.
- *
- * Revision 1.2  1998/12/15 23:53:22  mdw
- * New functions `dstr_putf' and `dstr_vputf' which do `printf'-style
- * formatting in a safe way.
- *
- * Revision 1.1.1.1  1998/06/17 23:44:42  mdw
- * Initial version of mLib
- *
- */
-
 /*----- Header files ------------------------------------------------------*/
 
 #include <stdio.h>
@@ -80,7 +44,7 @@
  * memory-hungry, but efficient.
  */
 
-#define DSTR_INITSZ 256			/* Initial buffer size */
+#define DSTR_INITSZ 64			/* Initial buffer size */
 
 /*----- Main code ---------------------------------------------------------*/
 
@@ -108,7 +72,7 @@ void dstr_destroy(dstr *d) { DDESTROY(d); }
 
 /* --- @dstr_reset@ --- *
  *
- * Arguments:	@dstr *d@ = pointer to a dynaimc string block
+ * Arguments:	@dstr *d@ = pointer to a dynamic string block
  *
  * Returns:	---
  *
@@ -142,15 +106,14 @@ void dstr_ensure(dstr *d, size_t sz)
 
   nsz = d->sz;
 
-  if (nsz == 0 && rq < DSTR_INITSZ)
-    nsz = DSTR_INITSZ;
-  else
-    do nsz <<= 1; while (nsz < rq);
+  if (nsz == 0)
+    nsz = (DSTR_INITSZ >> 1);
+  do nsz <<= 1; while (nsz < rq);
 
   if (d->buf)
-    d->buf = xrealloc(d->buf, nsz);
+    d->buf = x_realloc(d->a, d->buf, nsz, d->sz);
   else
-    d->buf = xmalloc(nsz);
+    d->buf = x_alloc(d->a, nsz);
   d->sz = nsz;
 }
 
@@ -229,8 +192,8 @@ void dstr_putm(dstr *d, const void *p, size_t sz) { DPUTM(d, p, sz); }
 
 void dstr_tidy(dstr *d)
 {
-  dstr_putz(d);
-  d->buf = xrealloc(d->buf, d->len + 1);
+  d->buf = x_realloc(d->a, d->buf, d->len + 1, d->sz);
+  d->buf[d->len] = 0;
   d->sz = d->len + 1;
 }
 
@@ -256,13 +219,6 @@ int dstr_putline(dstr *d, FILE *fp)
 
   for (;;) {
 
-    /* --- Make sure there's some buffer space --- */
-
-    if (!left) {
-      dstr_ensure(d, 1);
-      left = d->sz - off;
-    }
-
     /* --- Read the next byte --- */
 
     ch = getc(fp);
@@ -272,6 +228,14 @@ int dstr_putline(dstr *d, FILE *fp)
     if (ch == EOF && !rd)
       return (EOF);
 
+    /* --- Make sure there's some buffer space --- */
+
+    if (!left) {
+      d->len = off;
+      dstr_ensure(d, 1);
+      left = d->sz - off;
+    }
+
     /* --- End-of-file or newline ends the loop --- */
 
     if (ch == EOF || ch == '\n') {