[Guile] New typemaps for FILE *.

git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk/SWIG@875 626c5289-ae23-0410-ae9c-e8d60b6d4f22

Lib/guile/guiledec.swg

@@ -61,6 +61,14 @@ GSWIG_scm2char (SCM s)
   scm_wrong_type_arg(NULL, 0, s);
 }
 
+/* More 1.3.4 compatibility */
+#ifndef SCM_INPUT_PORT_P
+#  define SCM_INPUT_PORT_P SCM_INPORTP
+#  define SCM_OUTPUT_PORT_P SCM_OUTPORTP
+#endif
+
+/* Type system */
+
 typedef struct SwigPtrType SwigPtrType;
 
 typedef struct swig_type_info {

Lib/guile/ports.i

@@ -0,0 +1,44 @@
+/* ports.i --- Guile typemaps for handling ports -*- c -*-
+   Copyright (C) 2000 Matthias Koeppe <mkoeppe@mail.math.uni-magdeburg.de>
+
+   $Header$
+*/
+
+%{
+  #ifndef _POSIX_SOURCE
+  /* This is needed on Solaris for fdopen(). */
+  #  define _POSIX_SOURCE=199506L
+  #endif
+  #include <stdio.h>
+  #include <errno.h>
+%}
+
+/* Feed FILE * arguments from file ports */
+
+%typemap(guile, in) FILE *
+{
+  if(!(SCM_FPORTP($source)))
+    scm_wrong_type_arg("$name", $argnum, $source);
+  else {
+    int fd;
+    if (SCM_OUTPUT_PORT_P($source))
+      scm_force_output($source);
+    fd=dup(SCM_FPORT_FDES($source));
+    if(fd==-1) 
+      scm_misc_error("$name", strerror(errno), SCM_EOL);
+    $target=fdopen(fd,
+		   SCM_OUTPUT_PORT_P($source)
+		   ? (SCM_INPUT_PORT_P($source)
+		      ? "rw" : "w")
+		   : "r");
+    if($target==NULL)
+      scm_misc_error("$name", strerror(errno), SCM_EOL);
+  }
+}
+
+%typemap(guile, indoc) FILE * "($arg <port>)";
+
+%typemap(guile, freearg) FILE* {
+  fclose($target);
+}
+

Lib/guile/typemaps.i

@@ -3,7 +3,12 @@
 
    $Header$  */
 
-/* Basic types */
+/* Unlike other SWIG language modules, the Guile module handles all
+   non-pointer types uniformly via typemaps. Here are the
+   definitions.
+
+   The SIMPLE_MAP macro below defines the whole set of typemaps needed
+   for simple types. */
 
 %define SIMPLE_MAP(C_NAME, SCM_TO_C, C_TO_SCM, SCM_NAME)
  %typemap (guile, in)          C_NAME "$target = SCM_TO_C($source);";