Bill Swartz patch

src/include/dstring.h

@@ -0,0 +1,40 @@
+/*   dstring.h    */
+
+#ifndef DSTRING_H
+#define DSTRING_H
+
+#define EOS  '\0'
+/* -----------------------------------------------------------------
+ * This structure is modified from Tcl.   We do this to avoid a
+ * conflict and later add a conditional compile to just use the Tcl
+ * code if desired.
+----------------------------------------------------------------- */
+#define SPICE_DSTRING_STATIC_SIZE 200
+typedef struct spice_dstring {
+  char *string ;               /* Points to beginning of string:  either
+			        * staticSpace below or a malloced array. */
+  int length ;                 /* Number of non-NULL characters in the
+				* string. */
+  int spaceAvl ;               /* Total number of bytes available for the
+			        * string and its terminating NULL char. */
+  char staticSpace[SPICE_DSTRING_STATIC_SIZE] ;
+			       /* Space to use in common case where string
+				* is small. */
+} SPICE_DSTRING, *SPICE_DSTRINGPTR ;
+
+/* -----------------------------------------------------------------
+ * spice_dstring_xxxx routines.  Used to manipulate dynamic strings.
+----------------------------------------------------------------- */
+extern void spice_dstring_init(SPICE_DSTRINGPTR dsPtr) ;
+extern char *spice_dstring_append(SPICE_DSTRINGPTR dsPtr,char *string,int length) ;
+extern char *spice_dstring_append_char(SPICE_DSTRINGPTR dsPtr,char c) ;
+extern char *spice_dstring_print(SPICE_DSTRINGPTR dsPtr,char *format, ... ) ;
+extern char *spice_dstring_setlength(SPICE_DSTRINGPTR dsPtr,int length) ;
+extern char *_spice_dstring_setlength(SPICE_DSTRINGPTR dsPtr,int length) ;
+extern void spice_dstring_free(SPICE_DSTRINGPTR dsPtr) ;
+#define spice_dstring_reinit(x_xz) spice_dstring_setlength(x_xz,0) ;
+#define spice_dstring_value(x_xz) ((x_xz)->string)
+#define spice_dstring_space(x_xz) ((x_xz)->spaceAvl)
+#define spice_dstring_length(x_xz) ((x_xz)->length)
+
+#endif /* DSTRING_H */