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remove file.c

This commit is contained in:
Yuichi Nishiwaki 2014-08-25 16:59:01 +09:00
parent 3225a89122
commit 4cf8f3d7f6
2 changed files with 0 additions and 121 deletions
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119
file.c
View File

@ -1,119 +0,0 @@
/**
* See Copyright Notice in picrin.h
*/
#include "picrin.h"
#include "picrin/port.h"
#include "picrin/error.h"
static noreturn void
file_error(pic_state *pic, const char *msg)
{
pic_throw(pic, PIC_ERROR_FILE, msg, pic_nil_value());
}
static pic_value
generic_open_file(pic_state *pic, const char *fname, char *mode, short flags)
{
struct pic_port *port;
xFILE *file;
file = xfopen(fname, mode);
if (! file) {
file_error(pic, "could not open file");
}
port = (struct pic_port *)pic_obj_alloc(pic, sizeof(struct pic_port), PIC_TT_PORT);
port->file = file;
port->flags = flags;
port->status = PIC_PORT_OPEN;
return pic_obj_value(port);
}
pic_value
pic_file_open_input_file(pic_state *pic)
{
static const short flags = PIC_PORT_IN | PIC_PORT_TEXT;
char *fname;
pic_get_args(pic, "z", &fname);
return generic_open_file(pic, fname, "r", flags);
}
pic_value
pic_file_open_input_binary_file(pic_state *pic)
{
static const short flags = PIC_PORT_IN | PIC_PORT_BINARY;
char *fname;
pic_get_args(pic, "z", &fname);
return generic_open_file(pic, fname, "rb", flags);
}
pic_value
pic_file_open_output_file(pic_state *pic)
{
static const short flags = PIC_PORT_OUT | PIC_PORT_TEXT;
char *fname;
pic_get_args(pic, "z", &fname);
return generic_open_file(pic, fname, "w", flags);
}
pic_value
pic_file_open_output_binary_file(pic_state *pic)
{
static const short flags = PIC_PORT_OUT | PIC_PORT_BINARY;
char *fname;
pic_get_args(pic, "z", &fname);
return generic_open_file(pic, fname, "wb", flags);
}
pic_value
pic_file_exists_p(pic_state *pic)
{
char *fname;
FILE *fp;
pic_get_args(pic, "z", &fname);
fp = fopen(fname, "r");
if (fp) {
fclose(fp);
return pic_true_value();
} else {
return pic_false_value();
}
}
pic_value
pic_file_delete(pic_state *pic)
{
char *fname;
pic_get_args(pic, "z", &fname);
if (remove(fname) != 0) {
file_error(pic, "file cannot be deleted");
}
return pic_none_value();
}
void
pic_init_file(pic_state *pic)
{
pic_deflibrary (pic, "(scheme file)") {
pic_defun(pic, "open-input-file", pic_file_open_input_file);
pic_defun(pic, "open-input-binary-file", pic_file_open_input_binary_file);
pic_defun(pic, "open-output-file", pic_file_open_output_file);
pic_defun(pic, "open-output-binary-file", pic_file_open_output_binary_file);
pic_defun(pic, "file-exists?", pic_file_exists_p);
pic_defun(pic, "delete-file", pic_file_delete);
}
}

2
init.c
View File

@ -15,7 +15,6 @@ void pic_init_bool(pic_state *);
void pic_init_pair(pic_state *);
void pic_init_port(pic_state *);
void pic_init_number(pic_state *);
void pic_init_file(pic_state *);
void pic_init_proc(pic_state *);
void pic_init_symbol(pic_state *);
void pic_init_vector(pic_state *);
@ -56,7 +55,6 @@ pic_init_core(pic_state *pic)
pic_init_pair(pic); DONE;
pic_init_port(pic); DONE;
pic_init_number(pic); DONE;
pic_init_file(pic); DONE;
pic_init_proc(pic); DONE;
pic_init_symbol(pic); DONE;
pic_init_vector(pic); DONE;