How to find all globals in routines?

With the help of a standard editor only - that will be a difficult and cumbersome task, for example, in the below snippet try to find the "^Test" global (not the routine ^Test):

set value = ^Test// take a value from the global ^Testdo^Test// call the routine ^Test// a more complex case//set ref = "^Test"// in this case you are luckyset ref = "^" _ "Test"// this could be a stumbling stone// few lines laterset value = @ref  // get the value of ^Test globaldo @ref           // call the routine ^Test

You will need some kind of an "intelligent" editor which can make a difference between a call (do) like operation and a "get-value" like operation. The one I know of (but I have never used it, so I don't know how good it works) is the RE/parser of GJS. Asking Google is a good starting point.

@Anna.GolitsynaIf you goal is to find all globals referenced in a document, you can use a modified version of the code I included in this comment. The code uses the %SyntaxColor class to get a JSON array of semantic tokens for a document, and then loops through them looking for global references. Note that this will only find literal references, not naked references or indirection.

ClassMethod WriteAllGrefs()
{
    Set syn = ##class(%SyntaxColor).%New(), in = ##class(%Stream.TmpCharacter).%New(), out = ##class(%Stream.TmpCharacter).%New()
    #; TODO Put your document's contents into "in"Do syn.Color(in,out,"COS"/* or "INT" or "CLS" */,"KE"/* K means JSON output, E means keep empty lines */)
    #; Format of the JSON output:
    #; [
    #;     #; One array for each source line
    #;     [
    #;         {
    #;             #; Language of the token. See Languages() in %Library.SyntaxColor.
    #;             "l": %Integer,
    #;             #; Attribute of the token. See Attributes() in %Library.SyntaxColor.
    #;             "s": %Integer,
    #;             #; Zero-indexed start position of the token on the line
    #;             "p": %Integer,
    #;             #; Length of the token in characters
    #;             "c": %Integer
    #;         }
    #;     ]
    #; ]Set json = ##class(%DynamicArray).%FromJSON(out), lineIter = json.%GetIterator()
    While lineIter.%GetNext(.lineNum,.lineTokens) {
        Set tokensIter = lineTokens.%GetIterator()
        While tokensIter.%GetNext(,.token) {
            If (
                #; COS
                (token.l = 1) &&
                #; Global reference
                (token.s = 18)
            ) {
                Write"Gref starting in column ",token.p + 1," of line ",lineNum + 1,!
            }
        }
    }
}

You can combine this with the %Library.RoutineMgr_StudioOpenDialog query to make an index of all globals referenced in a subset of documents.