Does Ruby have block comments?
If not, is there an efficient way of inserting # in front of a block of highlighted code in TextMate?
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Timur Shtatland
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alamodey
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In Emacs, you can press `Meta-;` to comment / uncomment a selected region. – Boris Stitnicky Jun 12 '13 at 04:09
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1Possible duplicate of [Multi-Line Comments in Ruby?](https://stackoverflow.com/questions/2989762/multi-line-comments-in-ruby) – ymoreau Aug 16 '18 at 10:48
4 Answers
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You can do
=begin
[Multi line comment]
=end
=begin and =end must be at the beginning of the line (not indented at all).
Also, in TextMate you can press Command + / to toggle regular comments on a highlighted block of code.
the Tin Man
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Garry Shutler
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2One thing to note is that you must have the "Source" bundle enabled for the CMD + / shortcut to work. I had disabled it at some point in the past during an overzealous bundle purging rage and couldn't figure out why my Mac kept beeping at me whenever I tried using the comment shortcut. – Chris Bloom Jun 11 '12 at 15:09
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Could be worth mentioning that Command + / also block comments in Sublime Text too – Adam Waite May 26 '13 at 20:24
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it goes wrong if there is some <% %> open tags in the block of commented code. Maybe there is any other way to do this? – Gediminas Šukys Jun 12 '13 at 19:21
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Even better, they must be the only thing in their line. If you write something after "=begin" you get "syntax error, unexpected '=', expecting keyword_end" – Nemo Jan 13 '15 at 17:34
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Ruby has documentation comments - they look like this:
=begin
...
=end
Not perfect but they get the job done in a pinch.
[Edit] It is important to note that =begin and =end must be at the beginning of their respective lines.
Andrew Hare
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In TextMate, you can alt-drag vertically to select a column of text. This will duplicate the insertion point across all the lines you select, so you can insert or delete multiple #s at once.
UPDATE: Also in TextMate, assuming you have the right language selected, Cmd + / will toggle commenting every line in a selection regardless of language.
Andrew
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Yeah. Notepad++ lets you do this by holding alt as well (e.g. alt-shift-up arrow several times); UltraEdit and other editors have "column mode" as well. – AlexC Mar 08 '13 at 14:49
