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#include "asclock.h"
#define GETNEXT fread(&next, 1, sizeof(char), file); if(feof(file)) return FALSE
static char next;
static FILE *file;
static void buferr()
{
fprintf(stderr, "please do not enter numbers bigger than the number of atoms in the universe. thanks\n");
exit(-1);
}
int read_init(FILE *f)
{
file = f;
GETNEXT;
return TRUE;
}
int read_type(int *type) {
while(1)
{
if(isalpha(next))
return TRUE;
GETNEXT;
if(next=='*')
while(1) {
GETNEXT;
if(next!='*') continue;
GETNEXT;
if(next=='/') break;
}
else if(next=='/')
while(1) {
GETNEXT;
if(next=='\n') { GETNEXT; break; }
}
if(isalpha(next)) return TRUE;
GETNEXT;
}
return TRUE;
}
int read_token(char *str, int max)
{
int i;
i = 0;
while(isspace(next))
GETNEXT;
while( (isalnum(next) || (next=='_')) && (i<max))
{
str[i++] = next;
GETNEXT;
}
if(i==max) buferr();
str[i] = '\0';
return TRUE;
}
int read_assign()
{
while(next!='=')
GETNEXT;
GETNEXT;
return TRUE;
}
int read_int(int *ret)
{
char buf[64];
int i;
while(isspace(next))
GETNEXT;
i = 0;
while(isdigit(next) && (i<64)) {
buf[i++]=next;
GETNEXT;
}
if(i==64) buferr();
buf[i] = '\0';
*ret = atoi(buf);
return TRUE;
}
int read_semicolon()
{
while(next!=';')
GETNEXT;
GETNEXT;
return TRUE;
}
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