Important Headers

• X-FRAME-OPTIONS: 'SAMEORIGIN'

• X-Content-Type-Options: 'nosniff'

• X-XSS-Protection: '1; mode=block'

• Content-Security-Policy

• on Employee filterBy(isActiveEmployee) aggregate count(Employee.EmployeeID)

Supported Keywords

- on
- validUntil
- instant
- filterBy
- aggregate
- count

TODO:

- Add Subject, Property, concept validations
- Query transformation
- Unit tests on lexer, parser, visitor and query transformation
- Custom Errors for lexer, parser, Subject, Property, concept validations
- Integrate remaining keywords 

Basic

- default analytic dashboards & widgets
- formulas for each widget
- define objects and functions, keywords for 1st phase

simple arithmetic expression and query language expression

1+1
1+11+11111+22*2/2
on identifier aggregate count(identifier)
on identifier validUntil Instant filterBy(identifier) aggregate count(identifier)

now i want to extend the grammar to support query language expression followed by arithmetic expression and another one is arithmetic expression followed by query language expression.

for example: query language expression followed by arithmetic expression:

on identifier aggregate count(identifier) + 10 + 10 * 1 * 15 / 44
on identifier validUntil Instant aggregate count(identifier) * 5
on identifier filterBy(identifier) aggregate count(identifier) / 5
on identifier validUntil Instant filterBy(identifier) aggregate count(identifier) - 4

arithmetic expression followed by query language expression:

5 + on identifier aggregate count(identifier)
5 * 5 + on identifier validUntil Instant aggregate count(identifier)
5 / 5 + on identifier filterBy(identifier) aggregate count(identifier)
5 - 4 + on identifier validUntil Instant filterBy(identifier) aggregate count(identifier)

please correct the parser accordingly, and query language should present only once