Difference between revisions of "Command Line Syntax"

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The interpretive scripting language for [[NairnFEAMPM]] and [[NairnFEAMPMViz]] is made up of a series of command lines. The syntax of these lines is described below.
The interpretive [[Scripting Language Syntax|scripting language]] for [[NairnFEAMPM]] and [[NairnFEAMPMViz]] is made up of a series of command lines. The syntax of these lines is described below.
__TOC__
== Command Line ==
== Command Line ==
  Command #1,#2,#3,...      ! comment
  Command #1,#2,#3,...      ! comment


<ol>
# A line beginning in any valid command.
<li>A line beginning in any valid command.</li>
# The command may be followed by a space and then by any number of arguments for the command.
<li>The command may be followed by any number of arguments appropriate for the command.</li>
# Arguments are separated by white space or a comma. If an argument contains white space or commas (such as string arguments), enclose the argument in quotes. Any argument can be an [[Expression Syntax|expression]]. In [[NairnFEAMPMViz]], arguments must be separated by commas.
<li>Arguments are separated by white space or a comma. If an argument contains white space or commas (such as string arguments), enclose the argument in quotes. Any argument can be an <a href="expression.html#expr">expression</a>.</li>
# The line can be followed by an optional comment which is started by an exclamation point.
<li>The line can be followed by an optional comment which is started by an exclamation point
 
</li>
</ol>
== Variable Assignments ==
== Variable Assignments ==


<pre>#var = <a href="expression.html#expr"><code>expression</code></a>                ! comment
#var = expression                     ! comment
#var[<a href="expression.html#expr"><code>expression</code></a>] = <a href="expression.html#expr"><code>expression</code></a>      ! comment
#var[expression] = expression         ! comment
</pre>


<ol>
<ol>
<li>A line beginning in <code>#var</code> where <code>var</code> is any valid <a href="expression.html">variable</a> name.</li>
<li>A line beginning in <tt>#var</tt> where <tt>var</tt> is any valid [[Variable Names|variable name]].</li>
<li>The <code>#var</code> name must be followed by assignment operator (&quot;=&quot, &quot;+=&quot, <i>etc.</i>) and an <a href="expression.html#expr">expression</a>. The variable is set equal to the result of expression and the assignment operator.</li>
<li>The <tt>#var</tt> name must be followed by assignment operator (=, +=, <i>etc.</i>) and an [[Expression Syntax|expression]]. The variable is set equal to the result of <tt>expression</tt> and the assignment operator.</li>
<li>The line can be followed by an optional comment which is started by an exclamation point
<li>The line can be followed by an optional comment which is started by an exclamation point
</li>
</li>
<li>Any valid <a href="expression.html">variable</a> name can be an array variable by following it with square brackets enclosing an <a href="expression.html#expr">expression</a> that evaluates to an index into the array.</li>
<li>The variable assigned can be an [[Variable Names#Variable Arrays|array variable]].</li>
</ol>
</ol>


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  ! comments
  ! comments


<ol>
# Lines beginning in an exclamation point are ignored and can be used for comments.
<li>Lines beginning in an exclamation point are ignored and can be used for comments.</li>
# Blank lines are also ignored and can be used to improve readability of input command files.
<li>Blank lines are also ignored and can be used to improve readability of input command files.
</li>
</ol>

Latest revision as of 10:31, 3 September 2013

The interpretive scripting language for NairnFEAMPM and NairnFEAMPMViz is made up of a series of command lines. The syntax of these lines is described below.

Command Line

Command #1,#2,#3,...      ! comment
  1. A line beginning in any valid command.
  2. The command may be followed by a space and then by any number of arguments for the command.
  3. Arguments are separated by white space or a comma. If an argument contains white space or commas (such as string arguments), enclose the argument in quotes. Any argument can be an expression. In NairnFEAMPMViz, arguments must be separated by commas.
  4. The line can be followed by an optional comment which is started by an exclamation point.

Variable Assignments

#var = expression                      ! comment
#var[expression] = expression          ! comment
  1. A line beginning in #var where var is any valid variable name.
  2. The #var name must be followed by assignment operator (=, +=, etc.) and an expression. The variable is set equal to the result of expression and the assignment operator.
  3. The line can be followed by an optional comment which is started by an exclamation point
  4. The variable assigned can be an array variable.

Comment Line

! comments
  1. Lines beginning in an exclamation point are ignored and can be used for comments.
  2. Blank lines are also ignored and can be used to improve readability of input command files.
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