qse/ase/test/awk/awk.c

92 lines
1.6 KiB
C

#include <xp/awk/awk.h>
#ifdef __STAND_ALONE
static xp_ssize_t process_source (int cmd, void* arg, xp_char_t* data, xp_size_t size)
{
wchar_t c;
switch (cmd) {
case XP_AWK_IO_OPEN:
case XP_AWK_IO_CLOSE:
return 0;
case XP_AWK_IO_DATA:
if (size < 0) return -1;
c = fgetwc (stdin);
if (c == XP_CHAR_EOF) return 0;
*data = c;
return 1;
}
return -1;
}
#else
#include <xp/bas/stdio.h>
#include <xp/bas/sio.h>
static xp_ssize_t process_source (int cmd, void* arg, xp_char_t* data, xp_size_t size)
{
xp_ssize_t n;
switch (cmd) {
case XP_AWK_IO_OPEN:
case XP_AWK_IO_CLOSE:
return 0;
case XP_AWK_IO_DATA:
if (size < 0) return -1;
n = xp_sio_getc (xp_sio_in, data);
if (n == 0) return 0;
if (n != 1) return -1;
return n;
}
return -1;
}
#endif
int xp_main (int argc, xp_char_t* argv[])
{
xp_awk_t awk;
#if 0
if (argc != 2) {
xp_printf (XP_TEXT("Usage: %s file\n"), argv[0]);
return -1;
}
#endif
if (xp_awk_open(&awk) == XP_NULL) {
xp_printf (XP_TEXT("Error: cannot open awk\n"));
return -1;
}
if (xp_awk_attsrc(&awk, process_source, XP_NULL) == -1) {
xp_awk_close (&awk);
xp_printf (XP_TEXT("error: cannot attach source\n"));
return -1;
}
if (xp_awk_parse(&awk) == -1) {
xp_awk_close (&awk);
xp_printf (XP_TEXT("error: cannot parse program\n"));
return -1;
}
xp_printf (XP_TEXT("-----------------------------------------------\n"));
if (awk.tree.begin != XP_NULL) {
xp_printf (XP_TEXT("BEGIN "));
xp_awk_prnpt (awk.tree.begin);
}
if (awk.tree.end != XP_NULL) {
xp_printf (XP_TEXT("END "));
xp_awk_prnpt (awk.tree.end);
}
xp_awk_close (&awk);
return 0;
}