Selects a character from a string. Echoes to stdout the selected character. If the index is out of range: the empty string is echoed to stdout.
mbfl_string_first string char ?begin? Fun... ompare: Validating results by comparing.
Testing Output: Validating results by output.
Testing Messages: Printing messages from tes... e execution. If verbose mode is on: some commands output messages on stderr describing what is going on... ed command, the functions dotest-equal and dotest-output, and of course the test command, may be used t