The default comment delimiters can be changed with the builtin
macro changecom:
changecom(opt start, opt end)
where start is the new start-comment delimiter and end is
the new end-comment delimiter. If any of the arguments are void, the
default comment delimiters (# and newline) are used instead of
the void arguments. The comment delimiters can be of any length.
The expansion of changecom is void.
define(`comment', `COMMENT') => # A normal comment =># A normal comment changecom(`/*', `*/') => # Not a comment anymore =># Not a COMMENT anymore But: /* this is a comment now */ while this is not a comment =>But: /* this is a comment now */ while this is not a COMMENT
Note how comments are copied to the output, much as if they were quoted strings. If you want the text inside a comment expanded, quote the start comment delimiter.
Calling changecom without any arguments disables the commenting
mechanism completely.
define(`comment', `COMMENT') => changecom => # Not a comment anymore =># Not a COMMENT anymore
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