Update post handling logic

The current post handling logic assumes that either POST_${engine} is
defined and is a string, or json_${engine} is defined and is a function.
This logic does not work for paste bins such as ix.io.

To make the logic more flexible, the string-function hybrid approach has
been replaced with a function call chain.  The entry-point to this
chain is always

    POST_${engine} NICK DESCRIPTION LANGUAGE EXPIRATION CVT_TABS INPUT

and for most services POST_${engine} is defined as:

    POST_generic <post format string> $1 $2 $3 $4 $5 $6

where POST_generic is the original logic for handling post requests.

For JSON post submissions, the coresponding json_${engine} function is
renamed to POST_${engine} and the arguments adjusted to match the
calling convention mentioned above.

0 files changed, 0 insertions, 0 deletions