Introduction to MarketScript

MarketScript is GlobalView's new formula engine introducing relaxed syntax of formula expressions.

Key points:

Function names are case insensitive so: fill, FILL, Fill, fiLL are all equivalent.
‘$’ sign in front of function name is deprecated (it is supported just for backward compatibility reasons).
Symbols are referenced by using double quotes, for example "MSFT".
Using $SV( ) is deprecated (supported for backward compatibility only).
example:
```
"/GCL"  is equivalent to $SV(/GCL)
```

Expressions with symbols can be used as parameters of functions,
example:
```
wagg( "/GCL" / 3 )
```
Functions can be applied to the result of other functions,
example:
```
fill( wagg("/GCL[0]"), 7, fwd )
```
Functions can be used within expressions,
example:
```
fill("/GCL", 7, fwd) – "/GNG" *1.7
```

Formula is defined by single expression optionally followed by a attributes in square brackets:

expression [ ';'  [ '[' attributes ']' ] ]

example:

"/GCL" / 3 ; [#4]