syntax command, details (2)
+--------------------------------------------------------+
| `0' | `1' | `2' | `3' | `4' |
|------------------------+------+--------+-----+---------|
| mpg wei if foreign | mpg | wei | if | foreign |
+--------------------------------------------------------+
| (macros `0', `1', ... remain unchanged)
|
syntax [varlist] [if]
reads `0' and fills <-- syntax just knows to read `0'
in `varlist' and `if'
|
| +--------------------------------+
| | `varlist' | `if' |
| |-------------------+------------|
| | mpg weight | if foreign |
| +--------------------------------+
| ^^^^^^^^^^ ^^^^^^^^^^
| | |
+----->---->--------+--------->---------+
(syntax fills in `varlist' and `if' because
the command was syntax [varlist] [if])
^^^^^^^ ^^
