Added more I/O functions

cgen.scm

@@ -441,6 +441,7 @@
      ((eq? p 'Cyc-default-exception-handler)  "Cyc_default_exception_handler")
      ((eq? p 'Cyc-current-exception-handler)  "Cyc_current_exception_handler")
      ((eq? p 'open-input-file)       "Cyc_io_open_input_file")
+     ((eq? p 'open-output-file)      "Cyc_io_open_output_file")
      ((eq? p 'close-port)            "Cyc_io_close_port")
      ((eq? p 'close-input-port)      "Cyc_io_close_input_port")
      ((eq? p 'close-output-port)     "Cyc_io_close_output_port")
@@ -536,6 +537,7 @@
     ((eq? p 'Cyc-stdin) "port_type")
     ((eq? p 'Cyc-stderr) "port_type")
     ((eq? p 'open-input-file) "port_type")
+    ((eq? p 'open-output-file) "port_type")
     ((eq? p 'length) "integer_type")
     ((eq? p 'vector-length) "integer_type")
     ((eq? p 'char->integer) "integer_type")
@@ -562,6 +564,7 @@
              Cyc-stdin
              Cyc-stderr
              open-input-file
+             open-output-file
              char->integer system string->number 
              string-append string-cmp list->string string->list
              make-vector list->vector

eval.scm

@@ -286,6 +286,7 @@
       (list 'string? string?)
       (list 'symbol? symbol?)
       (list 'open-input-file open-input-file)
+      (list 'open-output-file open-output-file)
       (list 'close-port close-port)
       (list 'close-input-port close-input-port)
       (list 'close-output-port close-output-port)

runtime.c

@@ -1002,6 +1002,13 @@ port_type Cyc_io_open_input_file(object str) {
     return p;
 }
 
+port_type Cyc_io_open_output_file(object str) {
+    const char *fname = ((string_type *)str)->str;
+    make_port(p, NULL, 0);
+    p.fp = fopen(fname, "w");
+    return p;
+}
+
 object Cyc_io_close_input_port(object port) {
   return Cyc_io_close_port(port); }
 
@@ -1286,6 +1293,9 @@ void _number_91_125string(object cont, object args) {
 void _open_91input_91file(object cont, object args) {  
     port_type p = Cyc_io_open_input_file(car(args));
     return_funcall1(cont, &p);}
+void _open_91output_91file(object cont, object args) {  
+    port_type p = Cyc_io_open_output_file(car(args));
+    return_funcall1(cont, &p);}
 void _close_91port(object cont, object args) {  
     return_funcall1(cont, Cyc_io_close_port(car(args)));}
 void _close_91input_91port(object cont, object args) {  
@@ -1984,6 +1994,7 @@ static primitive_type vector_127_primitive = {primitive_tag, "vector?", &_vector
 static primitive_type string_127_primitive = {primitive_tag, "string?", &_string_127};
 static primitive_type symbol_127_primitive = {primitive_tag, "symbol?", &_symbol_127};
 static primitive_type open_91input_91file_primitive = {primitive_tag, "open-input-file", &_open_91input_91file};
+static primitive_type open_91output_91file_primitive = {primitive_tag, "open-output-file", &_open_91output_91file};
 static primitive_type close_91port_primitive = {primitive_tag, "close-port", &_close_91port};
 static primitive_type close_91input_91port_primitive = {primitive_tag, "close-input-port", &_close_91input_91port};
 static primitive_type close_91output_91port_primitive = {primitive_tag, "close-output-port", &_close_91output_91port};
@@ -2090,6 +2101,7 @@ const object primitive_port_127 = &port_127_primitive;
 const object primitive_vector_127 = &vector_127_primitive;
 const object primitive_symbol_127 = &symbol_127_primitive;
 const object primitive_open_91input_91file = &open_91input_91file_primitive;
+const object primitive_open_91output_91file = &open_91output_91file_primitive;
 const object primitive_close_91port = &close_91port_primitive;
 const object primitive_close_91input_91port = &close_91input_91port_primitive;
 const object primitive_close_91output_91port = &close_91output_91port_primitive;

runtime.h

@@ -109,6 +109,7 @@ port_type Cyc_stdout(void);
 port_type Cyc_stdin(void);
 port_type Cyc_stderr(void);
 port_type Cyc_io_open_input_file(object str);
+port_type Cyc_io_open_output_file(object str);
 object Cyc_io_close_port(object port);
 object Cyc_io_close_input_port(object port);
 object Cyc_io_close_output_port(object port);
@@ -326,6 +327,7 @@ extern const object primitive_vector_127;
 extern const object primitive_string_127;
 extern const object primitive_symbol_127;
 extern const object primitive_open_91input_91file;
+extern const object primitive_open_91output_91file;
 extern const object primitive_close_91port;
 extern const object primitive_close_91input_91port;
 extern const object primitive_close_91output_91port;

scheme/base.sld

@@ -56,10 +56,8 @@
     current-input-port
     current-error-port
     call-with-port
-    ; TODO: call-with-input-file
-    ; TODO: call-with-output-file
-    ; TODO: close-input-port
-    ; TODO: close-output-port
+    call-with-input-file
+    call-with-output-file
     error
     raise
     raise-continuable
@@ -93,6 +91,10 @@
       (let ((result (proc port)))
         (close-port port)
         result))
+    (define (call-with-input-file string proc)
+      (call-with-port (open-input-file string) proc))
+    (define (call-with-output-file string proc)
+      (call-with-port (open-output-file string) proc))
     (define (Cyc-bin-op cmp x lst)
       (cond
         ((null? lst) #t)

transforms.scm

@@ -554,6 +554,7 @@
      string?
      symbol?
      open-input-file
+     open-output-file
      close-port
      close-input-port
      close-output-port
@@ -596,6 +597,7 @@
                   Cyc-stdin
                   Cyc-stderr
                   open-input-file
+                  open-output-file
                   close-port
                   close-input-port
                   close-output-port