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  2. Comment (computer programming) - Wikipedia

    en.wikipedia.org/wiki/Comment_(computer_programming)

    Most languages support multi-line block (a.k.a. stream) and/or single line comments. A block comment is delimited with text that marks the start and end of comment text. It can span multiple lines or occupy any part of a line. Some languages allow block comments to be recursively nested inside one another, but others do not.

  3. Comparison of programming languages (syntax) - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_programming...

    Perl. Block comments in Perl are considered part of the documentation, and are given the name Plain Old Documentation (POD). Technically, Perl does not have a convention for including block comments in source code, but POD is routinely used as a workaround. PHP. PHP supports standard C/C++ style comments, but supports Perl style as well. Python

  4. Perl language structure - Wikipedia

    en.wikipedia.org/wiki/Perl_language_structure

    The hash mark character introduces a comment in Perl, which runs up to the end of the line of code and is ignored by the compiler (except on Windows). The comment used here is of a special kind: it’s called the shebang line.

  5. Perl control structures - Wikipedia

    en.wikipedia.org/wiki/Perl_control_structures

    The label block construct is a bit of an oddity: Perl treats a bare block – with or without a label – as a loop that is executed once. This means that the loop control keywords can be used to restart the block or to exit it prematurely; a bare block can also have a continue block.

  6. Java syntax - Wikipedia

    en.wikipedia.org/wiki/Java_syntax

    Java has three kinds of comments: traditional comments, end-of-line comments and documentation comments. Traditional comments, also known as block comments, start with /* and end with */, they may span across multiple lines. This type of comment was derived from C and C++.

  7. Outline of Perl - Wikipedia

    en.wikipedia.org/wiki/Outline_of_Perl

    #!/usr/bin/perl – called the "shebang line", after the hash symbol (#) and ! (bang) at the beginning of the line. It is also known as the interpreter directive. # – the number sign, also called the hash symbol. In Perl, the # indicates the start of a comment. It instructs perl to ignore the rest of the line and not execute it as script code.

  8. Doxygen - Wikipedia

    en.wikipedia.org/wiki/Doxygen

    All examples are given for languages with C-like comments where a multi-line comment starts with /* and a single line comment starts with //. Doxygen ignores a comment unless it is marked specially. For a multi-line comment, the comment must start with /** or /*!. A markup tag is prefixed with a backslash (\) or an at-sign (@). [16]

  9. Here document - Wikipedia

    en.wikipedia.org/wiki/Here_document

    In these languages, including the line __DATA__ (Perl) or __END__ (Ruby, old Perl) marks the end of the code segment and the start of the data segment. Only the contents prior to this line are executed, and the contents of the source file after this line are available as a file object: PACKAGE::DATA in Perl (e.g., main::DATA) and DATA in Ruby ...