Added Nitfol and Frotz source code.

[rodin/chimara.git] / interpreters / nitfol / struct.c

diff --git a/interpreters/nitfol/struct.c b/interpreters/nitfol/struct.c
new file mode 100644 (file)
index 0000000..c0a58cf
--- /dev/null
+++ b/interpreters/nitfol/struct.c
@@ -0,0 +1,85 @@
+/*  Nitfol - z-machine interpreter using Glk for output.
+    Copyright (C) 1999  Evin Robertson
+
+    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 2 of the License, 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., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
+
+    The author can be reached at nitfol@deja.com
+*/
+#include "nitfol.h"
+
+
+glui32 fillstruct(strid_t stream, const unsigned *info, glui32 *dest,
+                 glui32 (*special)(strid_t))
+{
+  unsigned char buffer[4];
+  unsigned e;
+  glui32 len = 0;;
+
+  for(e = 0; info[e]; e++) {
+    if(info[e] == 0x8000) {
+      *dest++ = special(stream);
+      len++;
+    }
+    else if(info[e] > 4) {
+      unsigned i;
+      for(i = 0; i < info[e]; i++) {
+       *dest++ = glk_get_char_stream(stream);
+       len++;
+      }
+    } else {
+      glk_get_buffer_stream(stream, (char *) buffer, info[e]);
+
+      switch(info[e]) {
+      case 1: *dest = MSBdecode1(buffer); break;
+      case 2: *dest = MSBdecode2(buffer); break;
+      case 3: *dest = MSBdecode3(buffer); break;
+      case 4: *dest = MSBdecode4(buffer); break;
+      }
+      dest++;
+      len+=info[e];
+    }
+  }
+  return len;
+}
+
+glui32 emptystruct(strid_t stream, const unsigned *info, const glui32 *src)
+{
+  unsigned char buffer[4];
+  unsigned e;
+  glui32 len = 0;;
+
+  for(e = 0; info[e]; e++) {
+    if(info[e] > 4) {
+      unsigned i;
+      for(i = 0; i < info[e]; i++) {
+       glk_put_char_stream(stream, *src++);
+       len++;
+      }
+    } else {
+      switch(info[e]) {
+      case 1: MSBencode1(buffer, *src); break;
+      case 2: MSBencode2(buffer, *src); break;
+      case 3: MSBencode3(buffer, *src); break;
+      case 4: MSBencode4(buffer, *src); break;
+      }
+
+      w_glk_put_buffer_stream(stream, (char *) buffer, info[e]);
+      
+      src++;
+      len++;
+    }
+  }
+  return len;
+}