Add example interface

examples/Makefile

@@ -0,0 +1,21 @@
+# TODO:
+# Incremental compilation impossible without redundantly specifying
+# files that will be generated in the makefile
+
+
+TARGET_XML+=prototype_api.xml
+
+.PHONY: all  yml clean
+
+all: c_interface $(TARGET_XML)
+
+c_interface:
+	YML_PATH=../pEp_idl yml2proc -y ../pEp_idl/gen_c_header.ysl2 prototype_api.yml2
+
+xml: $(TARGET_XML)
+
+%.xml: %.yml2
+	YML_PATH=../pEp_idl yml2proc -P $< -o $@
+
+clean:
+	rm -f *.xml *.xsl *.h

examples/interface_example1.yml2

@@ -0,0 +1,84 @@
+include pEp_idl_grammar.yml2
+
+package pkg {
+    version 1.0;
+    license "License text";
+    copyleft "Copyleft text";
+
+    api api1 {
+        // These are the idl basetypes
+        // They should be in the package 'pEpIdl'
+        // And they need to be 'imported' into every module.
+        // But currently there is no import/depends concept implemented
+        type string;
+        type binary;
+        type int;
+        type uint;
+        type size;
+        type bool;
+        type opaque;
+
+        // This is part of the API def
+        type stringalias is string;
+
+        enum enum1 {
+            item item1 doc="oneline doc";
+            item item2 doc="";
+            item item3
+                doc=
+                """
+                item 3
+                ------
+                multiline
+                doc
+                """;
+        };
+
+        enum enum2 {
+            item item1 0;
+            item item2 1;
+            item item3 2
+                doc=
+                """
+
+
+
+                item 3
+                ------
+
+                multiline
+
+                doc with     bad formattting                """;
+        };
+
+        enum enum3 {
+            hex item1 0x00;
+            hex item2 0x10 doc="oneline doc";
+            hex item3 0xff
+                doc=
+                """
+                item 3
+                ------
+                multi    line
+                    doc
+                """;
+        };
+
+        struct struct1 {
+            field int int1;
+            field size size1 doc="short doc";
+            field string string1
+                doc="""
+                Multiline
+                Doc
+                """,
+                bla="fds";
+        };
+    };
+
+    api api2 {
+
+    
+    }
+}
+