Fletching out stdio library

retropikzel/stdio.scm

@@ -0,0 +1,29 @@
+(define-c-library libc '("stdio.h") libc-name '((additional-versions ("0" "6"))))
+(define-c-procedure internal-fopen libc 'fopen 'pointer '(pointer poiner))
+(define-c-procedure internal-fclose libc 'fclose 'int '(pointer))
+
+(define-record-type <stdio-file>
+  (make-stdio-file file)
+  stdio-file?
+  (file stdio-file))
+
+(define modes `("r" "w" "a" "r+" "w+" "a+" "rb" "wb" "ab" "rb+" "wb+" "ab+"))
+
+(define (fopen filename mode)
+  (when (not (string? filename)) (error "fopen: Filename must be string"))
+  (when (not (string? mode)) (error "fopen: Mode must be string"))
+  (when (not (member mode modes))
+    (error (string-append "fopen: Mode not in allowed modes of "
+                          (apply (lambda (item) (string-append mode " "))
+                                 modes))))
+  (let* ((filename-pointer (string->c-utf8 filename))
+         (mode-pointer (string->c-utf8 mode))
+         (file (make-stdio-file (fopen filename mode))))
+    (c-free filename-pointer)
+    (c-free mode-pointer)
+    file))
+
+(define (fclose file)
+  (when (not (stdio-file? file)) (error "fclose: File must be stdio-file"))
+  (internal-fclose (stdio-file file)))
+

retropikzel/stdio.sld

@@ -4,7 +4,7 @@
           (scheme write)
           (foreign c))
   (export fopen
-          ;fclose
+          fclose
           ;feof
           ;ferror
           ;fgetc

retropikzel/stdio/LICENSE

@@ -0,0 +1,165 @@
+                   GNU LESSER GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+
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+the terms and conditions of version 3 of the GNU General Public
+License, supplemented by the additional permissions listed below.
+
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+
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+General Public License, and the "GNU GPL" refers to version 3 of the GNU
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retropikzel/stdio/VERSION

@@ -0,0 +1 @@
+0.1.0

retropikzel/stdio/test.scm

@@ -0,0 +1,3 @@
+
+(test-begin "stdio")
+(test-end "stdio")