Comments

There are three types of comments in STKLOS:

• a semicolon ";" indicates the start of a comment. This kind of comment extends to the end of the line (as described in R5RS ).
• multi-lines comment use the classical Lisp convention: a comment begins with "#'' and ends with ``#".
• comments can also be introduced by "#!". Such a comment extends to the end of the line which introduces it. This extension is particularly useful for building STKLOS scripts. On most Unix implementations, if the first line of a script looks like this:

            #!/usr/local/bin/stklos -file
            

  then the script can be started directly as if it was a binary program. STKLOS is loaded behind the scene and reads and executes the script as a Scheme program. Note that, as a special case, the sequences #!key, #!optional and #!rest are respectively converted to the STKLOS keywords :key, :optional. This permits to Scheme lambdas, which accepts keywords and optional arguments, to be compatible with DSSSL lambdas [DSSSL-96].