modularize sex

Also rename macros to sex-macros, module-system to sex-modules for
clarity, uniformity, and to avoid name clashes with Chicken's
units/modules named "macros" and "modules"

tests/Makefile

@@ -1 +1,45 @@
+CHICKEN_C = csc
 
+CSC_FLAGS += -K prefix -static
+MODULE_FLAGS = -emit-all-import-libraries -module-registration -c
+
+MODULES = utils sex-macros reader sex-modules semen sex-fmt-c fmt-c-writer sexc
+SEX_OBJ = $(MODULES:%=%.o)
+
+TESTS = basic semen reader fmt-c-writer utils
+TEST_SRCS = $(TESTS:%=%.scm)
+
+sex-tests: run.scm $(TEST_SRCS) $(SEX_OBJ)
+	$(CHICKEN_C) $(CSC_FLAGS) run.scm -o sex-tests -link sexc
+
+#------------------------------------------------------------------
+
+utils.o: utils.module.scm ../utils.scm
+	$(CHICKEN_C) $(CSC_FLAGS) $(MODULE_FLAGS) utils.module.scm -o utils.o -unit utils
+
+sex-macros.o: sex-macros.module.scm ../sex-macros.scm
+	$(CHICKEN_C) $(CSC_FLAGS) $(MODULE_FLAGS) sex-macros.module.scm -o sex-macros.o -unit sex-macros
+
+reader.o: reader.module.scm ../reader.scm
+	$(CHICKEN_C) $(CSC_FLAGS) $(MODULE_FLAGS) reader.module.scm -o reader.o -unit reader
+
+sex-modules.o: sex-modules.module.scm ../sex-modules.scm reader.o utils.o
+	$(CHICKEN_C) $(CSC_FLAGS) $(MODULE_FLAGS) sex-modules.module.scm -o sex-modules.o -unit sex-modules -link reader,utils
+
+semen.o: semen.module.scm ../semen.scm sex-macros.o sex-modules.o utils.o
+	$(CHICKEN_C) $(CSC_FLAGS) $(MODULE_FLAGS) semen.module.scm -o semen.o -unit semen -link sex-macros,sex-modules,utils
+
+sex-fmt-c.o: ../sex-fmt-c.scm
+	$(CHICKEN_C) $(CSC_FLAGS) $(MODULE_FLAGS) ../sex-fmt-c.scm -o sex-fmt-c.o -unit sex-fmt-c
+
+fmt-c-writer.o: fmt-c-writer.module.scm ../fmt-c-writer.scm sex-fmt-c.o utils.o
+	$(CHICKEN_C) $(CSC_FLAGS) $(MODULE_FLAGS) fmt-c-writer.module.scm -o fmt-c-writer.o -unit fmt-c-writer -link sex-fmt-c,utils
+
+sexc.o: sexc.module.scm ../sexc.scm fmt-c-writer.o sex-macros.o sex-modules.o reader.o semen.o utils.o
+	$(CHICKEN_C) $(CSC_FLAGS) $(MODULE_FLAGS) sexc.module.scm -o sexc.o -unit sexc -link fmt-c-writer,sex-macros,sex-modules,reader,semen,utils
+
+clean:
+	rm -f $(OBJ)
+	rm -f *.import.scm
+	rm -f *.link
+	rm -f sex-tests

tests/basic.scm

@@ -1,3 +1,5 @@
+(import fmt-c-writer)
+
 (test-group "basic"
 
   ;; unkebabify

tests/fmt-c-writer.module.scm

@@ -0,0 +1,3 @@
+(module fmt-c-writer
+    *
+  "../fmt-c-writer.scm")

tests/reader.module.scm

@@ -0,0 +1,3 @@
+(module reader
+    *
+  "../reader.scm")

tests/reader.scm

@@ -1,4 +1,5 @@
-(import (chicken port))
+(import (chicken port)
+        reader)
 
 (define-syntax reader-test
   (syntax-rules ()

tests/run.scm

@@ -1,10 +1,4 @@
-(declare (uses fmt-c-writer
-               semen))
-
 (import
-  (chicken process)
-  (chicken process-context)
-  srfi-1
   test)
 
 (include "basic.scm")

tests/semen.module.scm

@@ -0,0 +1,2 @@
+(module semen *
+  "../semen.scm")

tests/semen.scm

@@ -1,4 +1,5 @@
-(import srfi-69)
+(import srfi-69
+        semen)
 
 (define print-str-fn
   '(fn void print-str ((string s))
@@ -38,11 +39,11 @@
   (define (form-identity form env)
     form)
 
-  (test 'a (semen-walk-form 'a form-identity (make-hash-table)))
-  (test '(a b c) (semen-walk-form '(a b c) form-identity (make-hash-table)))
+  (test 'a (walk-form 'a form-identity (make-hash-table)))
+  (test '(a b c) (walk-form '(a b c) form-identity (make-hash-table)))
 
-  (test 'a (semen-macro-expand 'a))
-  (test '(a b c) (semen-macro-expand '(a b c)))
+  (test 'a (macro-expand 'a))
+  (test '(a b c) (macro-expand '(a b c)))
 
   (let ((sex-code-macro
          '((defmacro (x10 a)

tests/sex-macros.module.scm

@@ -0,0 +1,3 @@
+(module sex-macros
+    *
+  "../sex-macros.scm")

tests/sex-modules.module.scm

@@ -0,0 +1,3 @@
+(module sex-modules
+    *
+  "../sex-modules.scm")

tests/sexc.module.scm

@@ -0,0 +1 @@
+(module sexc (main) "../sexc.scm")

tests/utils.module.scm

@@ -0,0 +1,3 @@
+(module utils
+    *
+  "../utils.scm")

tests/utils.scm

@@ -1,3 +1,5 @@
+(import utils)
+
 (test-group "utils"
 
   (test