X-Git-Url: http://git.code-monkey.de/?a=blobdiff_plain;f=ext%2Fext.c;h=c4082dc86b2535fa60b97232778632968e56b17b;hb=deb555911974965cf23a4bcfdf79fb3b7d327663;hp=4fd5e57f369d0d6a3ad0bf4621dae9380aa46401;hpb=ae38279aac4a96da8f06ca78b6cc6d30cebc0bdd;p=ruby-eet.git

diff --git a/ext/ext.c b/ext/ext.c
index 4fd5e57..c4082dc 100644
--- a/ext/ext.c
+++ b/ext/ext.c
@@ -1,5 +1,5 @@
 /*
- * $Id: ext.c 52 2005-06-02 18:29:51Z tilman $
+ * $Id: ext.c 60 2005-06-08 16:18:32Z tilman $
  *
  * Copyright (c) 2005 Tilman Sauerbeck (tilman at code-monkey de)
  *
@@ -26,6 +26,7 @@
 #include <Eet.h>
 #include <ruby.h>
 #include <st.h>
+#include <locale.h>
 
 #define CHECK_KEY(key) \
 	if (rb_funcall (key, id_include, 1, INT2FIX (0)) == Qtrue) \
@@ -47,7 +48,8 @@ static VALUE c_close (VALUE self);
 
 static VALUE cStream, cChunk,
              eEetError, eNameError, ePropError,
-             sym_lossy, sym_level, sym_quality;
+             sym_lossy, sym_level, sym_quality, sym_char, sym_short,
+             sym_long_long, sym_double;
 static ID id_include, id_serialize, id_push, id_keys,
           id_to_eet_chunks, id_to_eet_name, id_to_eet_properties,
           id_tag, id_data;
@@ -545,7 +547,7 @@ for_each_prop (VALUE tag, VALUE arg, VALUE stream)
 }
 
 /*
- * :call-seq:
+ * call-seq:
  *  object.to_eet -> string
  *
  * Serializes the receiver to EET format.
@@ -594,6 +596,60 @@ c_to_eet (VALUE self)
 	return rb_funcall (stream, id_serialize, 0);
 }
 
+static VALUE
+int_to_eet_chunks (int argc, VALUE *argv, VALUE self)
+{
+	VALUE tag, type = Qnil, ary, args[2], chunk;
+	char *cfmt = "V";
+
+	rb_scan_args (argc, argv, "11", &tag, &type);
+
+	ary = rb_ary_new3 (1, self);
+
+	if (type == sym_char)
+		cfmt = "c";
+	else if (type == sym_short)
+		cfmt = "v";
+	else if (type == sym_long_long)
+		cfmt = "q";
+
+	args[0] = tag;
+	args[1] = rb_funcall (ary, rb_intern ("pack"), 1, rb_str_new2 (cfmt));
+	chunk = rb_class_new_instance (2, args, cChunk);
+
+	return rb_ary_new3 (1, chunk);
+}
+
+static VALUE
+float_to_eet_chunks (int argc, VALUE *argv, VALUE self)
+{
+	VALUE tag, type = Qnil, args[2], chunk;
+	char buf[65], *loc;
+	double d;
+	int len;
+
+	rb_scan_args (argc, argv, "11", &tag, &type);
+
+	d = NUM2DBL (self);
+
+	/* switch locale to make sure we get proper snprintf output */
+	loc = setlocale (LC_NUMERIC, "C");
+
+	len = snprintf (buf, sizeof (buf) - 1, "%a",
+	                type == sym_double ? d : (float) d);
+
+	if (loc)
+		setlocale (LC_NUMERIC, loc);
+
+	buf[++len] = '\0';
+
+	args[0] = tag;
+	args[1] = rb_str_new (buf, len);
+	chunk = rb_class_new_instance (2, args, cChunk);
+
+	return rb_ary_new3 (1, chunk);
+}
+
 void
 Init_eet_ext ()
 {
@@ -625,6 +681,9 @@ Init_eet_ext ()
 
 	rb_define_method (rb_cObject, "to_eet", c_to_eet, 0);
 
+	rb_define_method (rb_cInteger, "to_eet_chunks", int_to_eet_chunks, -1);
+	rb_define_method (rb_cFloat, "to_eet_chunks", float_to_eet_chunks, -1);
+
 	eEetError = rb_define_class_under (m, "EetError", rb_eStandardError);
 	eNameError = rb_define_class_under (m, "NameError", eEetError);
 	ePropError = rb_define_class_under (m, "PropertyError", eEetError);
@@ -641,4 +700,8 @@ Init_eet_ext ()
 	sym_lossy = ID2SYM (rb_intern ("lossy"));
 	sym_level = ID2SYM (rb_intern ("level"));
 	sym_quality =  ID2SYM (rb_intern ("quality"));
+	sym_char = ID2SYM (rb_intern ("char"));
+	sym_short = ID2SYM (rb_intern ("short"));
+	sym_long_long = ID2SYM (rb_intern ("long_long"));
+	sym_double = ID2SYM (rb_intern ("double"));
 }