Init

.gitignore

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+*.md
+*.xml

README.md

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+# Hello YML2 DSL
+
+Hello world style template-project to create
+a DSL in yml2
+
+project template featuring:
+* dir structure
+* build system
+* incremental builds
+
+
+
+

compiler/RecipeLang.ysl2

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+include yslt.yml2
+
+tstylesheet {
+    include standardlib.ysl2
+
+    template "/" {
+        apply "/DSLName//recipe", 0
+    }
+
+    template "recipe" document "build/recipe_{@name}.md", "text" {
+        ||
+        # «@name»
+
+        ## Ingedients
+        ``apply "ingredients", 0
+
+        ## Preparation
+        «text()»
+        ||
+    }
+
+    template "ingredients", "text" {
+        ||
+        The ingredients you need:
+        ``apply "item", 0
+        ||
+    }
+
+    template "item", "text" {
+        ||
+         * «@name»
+        ||
+    }
+
+}
+

grammar/RecipeLang.yml2

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+// Example language grammar
+
+DSLName {
+    dls_data {
+        a;
+        b;
+        c;
+    }
+};
+
+decl recipe @name;
+decl item @name;

src/Makefile

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+# TODO:
+# Incremental compilation impossible without redundantly specifying
+# files that will be generated in the makefile
+
+DSLNAME=RecipeLang
+YML_PATH+=:../grammar
+COMPILER=../compiler/$(DSLNAME).ysl2
+BUILD_DIR=./build
+
+SRC=$(wildcard *.$(DSLNAME))
+SRC_XML=$(addsuffix .xml, $(basename $(SRC)))
+
+$(info $(SRC))
+$(info $(SRC_XML))
+
+.PHONY: all compile xml clean
+all: compile xml
+
+compile: $(BUILD_DIR)/*
+
+xml: $(SRC_XML)
+
+$(BUILD_DIR)/*: $(BUILD_DIR) $(SRC) $(COMPILER)
+	YML_PATH=$(YML_PATH) yml2proc -y $(COMPILER) $(SRC)
+
+$(BUILD_DIR):
+	mkdir $(BUILD_DIR)
+
+%.xml: %.$(DSLNAME)
+	YML_PATH=$(YML_PATH) yml2proc -P $< -o $@
+
+clean:
+	rm -rf \
+	./$(BUILD_DIR)/* \
+	$(SRC_XML)

src/main.RecipeLang

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+DSLName {
+    include RecipeLang.yml2
+
+    recipe aspargus_soup {
+        ingredients {
+            item salt;
+            item peppa;
+        };
+        "long long instructions";
+    };
+
+    recipe crepes {
+        ingredients {
+            item flour;
+            item egg;
+            item mill;
+        };
+        """
+        whisk all that stuff together and enjoy
+        Ow yeah and dont forget to bake it before...
+        """;
+    };
+};