# Scopus Query Compiler

**This package works best in conjunction with the Scopus-Syntax-Highlighter package.**

Scopus is a database of scientific articles that provides an advanced search function.

When editing search queries, this package allows you to create a query referencing another query. That is, given the following queries:

```ruby
TITLE-ABS-KEY(neur* AND network*)
TITLE-ABS-KEY(recurrent)
```
You can create the query
```ruby
(TITLE-ABS-KEY(neur* AND network*)) AND (TITLE-ABS-KEY(recurrent))
```
by typing `#1 AND #2` and then using the "Scopus Compile: Compile Query" command in the command palette.

The number you type after `#` is simply the number of the line number of the targeted query.

You can theoretically nest as many query references as you want, as long as you have no circular or self-references (these are detected and cause an exception).

% denotes a comment and is ignored.

Example:  
We want to compile line 15, which references lines 1, 7, 12, 13 and 14, which themselves reference other queries.
![](https://user-images.githubusercontent.com/12431317/64166237-00077780-ce47-11e9-9fae-bfe18c592713.png)

We select or put our caret on line 15 and use the command palette to use the Compile Query command.
![](https://user-images.githubusercontent.com/12431317/64166238-00077780-ce47-11e9-937d-3e9d0f678192.png)

The query on line 15 has been compiled, that is, its references have been replaced by the corresponding queries.
![](https://user-images.githubusercontent.com/12431317/64166239-00077780-ce47-11e9-845d-a330f1b6b586.png)

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