G'MIC exercises

[afre (Alan)]

On your thread. Ha ha.

Reptorian G'MIC Filters

FYI, $# in a command gives the number of specified arguments, so basically $# = narg($*) . I’m not sure there is any interest in using narg($*) then. I’m not sure about what you expect here, but let me develop a bit on command instanciation: When a G’MIC command is invoked in a script, the interpreter does the following things in this order: Command instanciation: the interpreter generates a new instance of the command, where all the arguments $1,.. are replaced by their provided values. …

Wrap with

if ${is_image_arg\ $3} pass$3 0 ... else ... fi