Strip block comments: Difference between revisions

=={{header|jq}}==

''Note: A version of jq with <tt>gsub/3</tt> is required to compile the function defined in this section.''

The filter <tt>strip_block_comments/2</tt> as defined here does not attempt to recognize comments-within-comments.

<lang jq>def strip_block_comments(open; close):

def deregex:

reduce ("\\\\", "\\*", "\\^", "\\?", "\\+", "\\.",

"\\!", "\\{", "\\}", "\\[", "\\]", "\\$", "\\|" ) as $c

(.; gsub($c; $c));

# "?" => reluctant, "m" => multiline

gsub( (open|deregex) + ".*?" + (close|deregex); ""; "m") ;

strip_block_comments("/*"; "*/")</lang>

'''Invocation''':

$ jq -s -R -r -f Strip_block_comments.jq sample_text_for_stripping.txt