True if the option was not passed

** Again, the use of 'lua_pushvfstring' ensures this function does ** not need reserved stack space when called. (At worst, it generates ** an error w

Gets value of node. Interpretation of value depends on type of node. Note that value will not be zero-terminated if rapidxml::parse_no_string_terminat

get the number of running threads in the pool

\returns whether or not the optional has a value \group has_value

Destroys the stored value if one exists, making the optional empty

\returns whether or not the optional has a value \group has_value

@} @name Parsing @{ Reset the parsed data

Gets name of the node. Interpretation of name depends on type of node. Note that name will not be zero-terminated if rapidxml::parse_no_string_termina

No argument version of count counts the number of times this subcommand was passed in. The main app will return 1. Unnamed subcommands will also retur

Gets file data size. \return Size of file data, in characters.

** Pushes on the stack a string with given length. Avoid using 's' when ** 'len' == 0 (as 's' can be NULL in that case), due to later use of ** 'memcm