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Merge remote-tracking branch 'origin/topic/jsiwek/while'

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Added documentation to statement reference.

* origin/topic/jsiwek/while:
  Add 'while' statement to Bro language.

BIT-1315 #merged
This commit is contained in:
Robin Sommer 2015-02-20 12:45:51 -08:00
commit abcb8e7c95
13 changed files with 374 additions and 4 deletions
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37
doc/script-reference/statements.rst
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@ -45,8 +45,11 @@ Statements
| | file |
+----------------------------+------------------------+
| :bro:keyword:`for`, | Loop over each |
| :bro:keyword:`next`, | element in a container |
| :bro:keyword:`break` | object |
| :bro:keyword:`while`, | element in a container |
| :bro:keyword:`next`, | object (``for``), or |
| :bro:keyword:`break` | as long as a condition |
| | evaluates to true |
| | (``while``). |
+----------------------------+------------------------+
| :bro:keyword:`if` | Evaluate boolean |
| | expression and if true,|
@ -563,6 +566,36 @@ Here are the statements that the Bro scripting language supports.
See the :bro:keyword:`return` statement for an explanation of how to
create an asynchronous function in a Bro script.
.. bro:keyword:: while
A "while" loop iterates over a body statement as long a given
condition remains true.
A :bro:keyword:`break` statement can be used at any time to immediately
terminate the "while" loop, and a :bro:keyword:`next` statement can be
used to skip to the next loop iteration.
Example::
local i = 0;
while ( i < 5 )
print ++i;
while ( some_cond() )
{
local finish_up = F;
if ( skip_ahead() )
next;
[...]
if ( finish_up )
break;
[...]
}
.. _compound statement: