You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
22 lines
575 B
C
22 lines
575 B
C
#include "fmt.h"
|
|
|
|
/* "foo" -> "foo "
|
|
* append padlen-srclen spaces after dest, if that is >= 0. Truncate
|
|
* only if total length is larger than maxlen. Return number of
|
|
* characters written. */
|
|
size_t fmt_fill(char* dest,size_t srclen,size_t padlen,size_t maxlen) {
|
|
long todo;
|
|
char* olddest=dest;
|
|
char* max=dest+maxlen;
|
|
if (dest==0) {
|
|
unsigned long sum=srclen>padlen?srclen:padlen;
|
|
return sum>maxlen?maxlen:sum;
|
|
}
|
|
dest+=srclen;
|
|
for (todo=padlen-srclen; todo>0; --todo) {
|
|
if (dest>max) break;
|
|
*dest=' '; ++dest;
|
|
}
|
|
return dest-olddest;
|
|
}
|