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#include "apue.h"
#define TOK_ADD 5
void do_line(char *);
void cmd_add(void);
int get_token(void);
int
main(void)
{
char line[MAXLINE];
while (fgets(line, MAXLINE, stdin) != NULL)
do_line(line);
exit(0);
}
char *tok_ptr; /* global pointer for get_token() */
void
do_line(char *ptr) /* process one line of input */
{
int cmd;
tok_ptr = ptr;
while ((cmd = get_token()) > 0) {
switch (cmd) { /* one case for each command */
case TOK_ADD:
cmd_add();
break;
}
}
}
void
cmd_add(void)
{
int token;
token = get_token();
/* rest of processing for this command */
}
int
get_token(void)
{
/* fetch next token from line pointed to by tok_ptr */
}