use b_plain
use cz/vars

split_use()
	vec *out
	cz_new_parse_vos(out)
	for_vec(i, includes, cstr)
		cstr l = *i
		char *end = l+strlen(l)
		cstr command = l
		cstr word = Strchr(l, ' ')+1
		char *e = strchr(word, ' ')
		if !e
			vec_push(out, l)
		 else
			word[-1] = '\0'
			repeat
				if e
					*e = '\0'
				if !strlen(word)
					error("bad use statement: %s", nul_to_space(l, end))
				vec_push(out, fformat("%s %s", command, word))
				if !e
					break
				word = e + 1
				while *word == ' '
					++word
				e = strchr(word, ' ')
	vec_squeeze(out)
	vec_free(includes)
	includes = out