Determine the length of strings as early as possible and use that
to prevent unnecessary memory allocations, and in memory copies
instead of string concatenations.
JerryScript-DCO-1.0-Signed-off-by: Akos Kiss akiss@inf.u-szeged.hu
jerry_port_read_source should exit with error message
if its parameter is a directory and not a regular file.
Fixes#4251.
JerryScript-DCO-1.0-Signed-off-by: Csaba Osztrogonác csaba.osztrogonac@h-lab.eu
Yonggang Luo