NAME

longopt.c - Command-line option parsing

DESCRIPTION

This is used by parrot.

int longopt_get: Gets long or short options, specified in options[] (see docs/dev/longopt.dev).; Call it iteratively with the same info_buf until it returns 0 or -1.; 0 means you have reached the end of options.; -1 means a parse error, with error put in info_buf->opt_error.; Any other value is a valid option identifier.
static int longopt_get_longopt: Find the option identifier of a long option.; Fill info_buf appropriately, and return the option identifier.; argv[info_buf-opt_index]> is guaranteed to have at least three characters and start with --.
static int longopt_get_shortopt: Find the option identifier of the next short option.; This next short option may be in the middle of a bundle (-abcd), and info_buf->_shortopt_pos maintains a pointer into that bundle.; argv[info_buf->opt_index] is guaranteed to be at least two characters long and start with a dash.