This method tries to set an output field value based on a specified line.
Function SetFromLine( index|name, tag, y, dy, x, left, right )
variant index or name
integer index - field index (starting from 1)
string name - the name of the output field
string tag - the input tag regular expression string
integer y - line number
integer dy - number lines to analyze
integer x - position in the line
string left - the left delimiter regular expression
string right - the right delimiter regular expression
boolean - true on success
An exception is thrown on an error