macro/syntax/identifiers.html

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<h1>Identifiers and reserved words</h1>

<h2>Variable identifiers</h2>

<p>
The first character must be an alphabetic (A-Z, a-z) or an underscore character "_". Subsequent characters can be alphabetic, underscore or numeric (0-9). Variable identifiers are not case-sensitive. The maximum length is 31.
</p>

<pre>
Example:
    VARIABLE
    _flag
</pre>

<h2>Label identifiers</h2>

<p>
Label identifiers consist of alphabetic, underscore or numeric characters, and are not case-sensitive. The maximum length is 31.
</p>

<pre>
Example:
    label1
    100
</pre>

<h2>Reserved words</h2>

<p>
The following words are reserved:
</p>

<dl>
  <dt>Command</dt>
  <dd>bplusrecv, bplussend, changedir... (see the <A HREF="../command/index.html">command list</A>)</dd>

  <dt>Operator</dt>
  <dd>and, not, or, xor</dd>

  <dt>System variable</dt>
  <dd>
    groupmatchstr1, groupmatchstr2, groupmatchstr3, groupmatchstr4, groupmatchstr5,
    groupmatchstr6, groupmatchstr7, groupmatchstr8, groupmatchstr9,<br>
    param1, param2, param3, param4, param5, param6, param7, param8, param9, params, paramcnt,<br>
    inputstr, matchstr, result, timeout, mtimeout
  </dd>
</dl>

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