args.hlp

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{smcl}
{* 30mar2005}{...}
{cmd:help args}
{hline}

{title:Title}

{p 4 30 2}
{cmd:args} (in {hi:[P] syntax}) {hline 2} Parse Stata syntax positionally


{title:Syntax}

{p 8 13 2}
{cmd:args} {it:macroname1} [{it:macroname2} [{it:macroname3 {it:...}}]]


{title:Description}

{pstd}
{cmd:args} obtains command line arguments.  It works on positional
arguments -- the first, second, ... item entered on a command line.  The
{help syntax} command is a more comprehensive command that also obtains
command line arguments but does so according to Stata's language grammar.  For
an introduction to Stata's language, see {help language}.

{pstd}
{cmd:args} assigns the first command line argument to the local macro
{it:macroname1}, the second argument to {it:macroname2}, and so on.  In the
program, you subsequently refer to the contents of the macros by enclosing
their names in single quotes:  {cmd:`}{it:macroname1}{cmd:'},
{cmd:`}{it:macroname2}{cmd:'}, etc.


{title:Examples}

	{cmd:program define myprog}
		{cmd:version {ccl stata_version}}
		{cmd:args varname dof beta}
		{it:...}
{p 16 18 2}{txt:(program uses macros {hi:`varname'}, {hi:`dof'}, and {hi:`beta'})}{p_end}
		{it:...}
	{cmd:end}

	{cmd:. myprog mpg 32 8.2}

{pstd}
In this case {hi:`varname'} is set to {hi:mpg}, {hi:`dof'} is set to 32,
{hi:`beta'} is set to 8.2.


{title:Also see}

{psee}
Manual:  {bf:[P] syntax}

{psee}
Online:  {helpb program}, {helpb syntax},
{helpb gettoken}, {helpb tokenize}, {helpb unab}
{p_end}