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created 2003 · complexity basic · author Raj Kiran · version 5.7
You don't need to use the slash character as the expression delimiter. Whatever character follows the
:s is defined to be the delimiter character. You can use most non-alphanumeric characters (but not \, " or |). This is very handy when working with Unix filenames, as in the following example:
If you insist on using the normal slash, you have to escape each slash in the pattern with a backslash:
As you can see, the escaping method is much less readable, so consider carefully your choice of delimiter character!
What a great tip. Very nice when trying to comment out Java or JS. e.g. :5,8 s#^#//# which looks much nicer than :5,8 s/^/\/\//
The percent ('%') character is also a frequently used alternative. Both percent and the octothorpe ("pound sign") ('#') characters have '/' embedded in them, to visually cue you why they are there as delimiters.
A comma delimiter works well and seems less cluttery. This is particularly handy for text, HTML/XML or Ruby.