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add open-output-string and get-output-string

This commit is contained in:
Yuichi Nishiwaki 2014-02-09 01:49:55 +09:00
parent 0e464b2f75
commit a666951f21
1 changed files with 61 additions and 19 deletions
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80
src/port.c
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@ -196,25 +196,6 @@ pic_port_close_port(pic_state *pic)
return pic_none_value();
}
static pic_value
pic_port_open_input_string(pic_state *pic)
{
struct pic_port *port;
char *str;
size_t len;
pic_get_args(pic, "s", &str, &len);
port = (struct pic_port *)pic_obj_alloc(pic, sizeof(struct pic_port *), PIC_TT_PORT);
port->file = xmopen();
port->flags = PIC_PORT_IN | PIC_PORT_TEXT;
port->status = PIC_PORT_OPEN;
xfputs(str, port->file);
return pic_obj_value(port);
}
#define assert_port_profile(port, flgs, stat, caller) do { \
if ((port->flags & (flgs)) != (flgs)) { \
switch (flgs) { \
@ -242,6 +223,65 @@ pic_port_open_input_string(pic_state *pic)
} \
} while (0)
static pic_value
pic_port_open_input_string(pic_state *pic)
{
struct pic_port *port;
char *str;
size_t len;
pic_get_args(pic, "s", &str, &len);
port = (struct pic_port *)pic_obj_alloc(pic, sizeof(struct pic_port *), PIC_TT_PORT);
port->file = xmopen();
port->flags = PIC_PORT_IN | PIC_PORT_TEXT;
port->status = PIC_PORT_OPEN;
xfputs(str, port->file);
xfflush(port->file);
xrewind(port->file);
return pic_obj_value(port);
}
static pic_value
pic_port_open_output_string(pic_state *pic)
{
struct pic_port *port;
pic_get_args(pic, "");
port = (struct pic_port *)pic_obj_alloc(pic, sizeof(struct pic_port *), PIC_TT_PORT);
port->file = xmopen();
port->flags = PIC_PORT_OUT | PIC_PORT_TEXT;
port->status = PIC_PORT_OPEN;
return pic_obj_value(port);
}
static pic_value
pic_port_get_output_string(pic_state *pic)
{
struct pic_port *port;
long endpos;
char *buf;
pic_get_args(pic, "p", &port);
assert_port_profile(port, PIC_PORT_OUT | PIC_PORT_TEXT, PIC_PORT_OPEN, "read-char");
/* get endpos */
xfflush(port->file);
endpos = xftell(port->file);
xrewind(port->file);
/* copy to buf */
buf = (char *)pic_alloc(pic, endpos);
xfread(buf, 1, endpos, port->file);
return pic_obj_value(pic_str_new(pic, buf, endpos));
}
static pic_value
pic_port_read_char(pic_state *pic)
{
@ -406,6 +446,8 @@ pic_init_port(pic_state *pic)
/* string I/O */
pic_defun(pic, "open-input-string", pic_port_open_input_string);
pic_defun(pic, "open-output-string", pic_port_open_output_string);
pic_defun(pic, "get-output-string", pic_port_get_output_string);
/* input */
pic_defun(pic, "read-char", pic_port_read_char);