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use "alloc.use"
use "die.use"
use "slcp.use"
pkg std =
const strcat : (a : byte[:], b : byte[:] -> byte[:])
const strjoin : (strings : byte[:][:], delim : byte[:] -> byte[:])
;;
const strcat = {a, b
-> strjoin([a, b][:], "")
}
const strjoin = {strings, delim
var len, off
var s
len = 0
for var i = 0; i < strings.len; i++
len += strings[i].len
;;
if strings.len > 0
len += (strings.len - 1)*delim.len
;;
s = slalloc(len)
off = 0
for var i = 0; i < strings.len; i++
slcp(s[off:off + strings[i].len], strings[i])
off += strings[i].len
/* we don't want to terminate the last string with delim */
if i != strings.len - 1
slcp(s[off:off + delim.len], delim)
off += delim.len
;;
;;
-> s
}
|
