How can I comment a single line in XML

Question

This rather is a verification just not to miss out   Is n t there a line-comment in XML  So  one without a closer  like      the compiler uses   I saw How do I comment out a block of tags in XML  and several other discussions   This type of comment would be practical to comment out a line without bothering its closer somewhere down

User · Answer

Not orthodox  but it works for me sometimes  set your comment as another attribute    lt node usefulAttr  foo  comment  Your comment here      gt

User · Answer

No  there is no way to comment a line in XML and have the comment end automatically on a linebreak   XML has only one definition for a comment     lt  --    Char -  -       -   Char -  -       -- gt     XML forbids -- in comments to maintain compatibility with SGML

User · Answer

The Extensible Markup Language  XML  1 0 only includes the block comments

User · Answer

It is the same as the HTML or JavaScript block comments    lt  -- The to-be-commented XML block goes here  -- gt

User · Answer

As others have said  there is no way to do a single line comment legally in XML that comments out multiple lines  but  there are ways to make commenting out segments of XML easier   Looking at the example below  if you add     to line one  the XmlTag will be uncommented  Remove the     and it s commented out again  This is the simplest way that I ve seen to quickly comment uncomment XML without breaking things    lt  -- --  lt XmlTag variable  0    gt   lt  -- -- gt    The added benefit is that you only manipulate the top comment  and the bottom comment can just sit there forever  This breaks compatibility with SGML and some XML parsers will barf on it  So long as this isn t a permanent fixture in your XML  and your parsers accept it  it s not really a problem   Stack nbsp Overflow s and Notepad   s syntax highlighter treat it like a multi-line comment  C   s Boost library treats it as a multi-line comment  and the only parser I ve found so far that breaks is the one in  NET  specifically C   So  be sure to first test that your tools  IDE  libraries  language  etc  accept it before using it   If you care about SGML compatibility  simply use this instead    lt  -- -  lt XmlTag variable  0    gt   lt  - -- gt    Add  -   to the top comment and a  -  to the bottom comment  The downside is having to edit the bottom comment each time  which would probably make it easier to just type in  lt  -- at the top and -- gt  at the bottom each time   I also want to mention that other commenters recommend using an XML editor that allows you to right-click and comment uncomment blocks of XML  which is probably preferable over fancy find replace tricks  it would also make for a good answer in itself  but I ve never used such tools  I just want to make sure the information isn t lost over time   I ve personally never had to deal with XML enough to justify having an editor fancier than Notepad    so this is totally up to you

[xml] How can I comment a single line in XML?

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