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Help: Revise docs on Scripting Commands

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Revise docs for all "Scripting Commands", except four find_XXX
that use a macro suite of their own.

* Take full advantage of the improved syntax highlighting.
* Make consequential use of <..> placeholders.
* Clarify things here and there in the text.

Specific improvements to some command docs:

* "math": Correct description of novel hexadecimal capability.
* "if", "foreach", "while": Provide link to "endif" etc
* "foreach", "while": Mention "break" and "continue".
* "foreach": Simplify explanation of ``RANGE`` and ``IN`` signatures;
   advise against negative arguments or reverse ranges (compare issue #18461)
* "endif", "endfunction" etc: Explain that the argument is optional and
   maintained for compatibility only
This commit is contained in:
Joachim Wuttke (l)
2018-10-16 21:50:48 +02:00
committed by Joachim Wuttke (o)
parent 7053dd301c
commit c2efb3efcd
41 changed files with 478 additions and 325 deletions
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8
Help/command/endif.rst
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@@ -3,8 +3,12 @@ endif
Ends a list of commands in an if block.
::
.. code-block:: cmake
endif(expression)
endif([<condition>])
See the :command:`if` command.
The optional ``<condition>`` argument is supported for backward compatibility
only. If used it must be a verbatim repeat of the argument of the opening
``if`` clause.