What are the rules for file references in Jetbrains IDEs? - hyperlink

Question

I am attempting to automate the creation of reference links within a Jetbrains IDE's output for a logging utility, but cannot find proper documentation of the types of links that are supported. While this will automatically work for references in the form of FILENAME:LINE_NUMBER, I'm wondering if other reference types are permitted (e.g. FILENAME#METHOD).
When working within a Jetbrains IDE, it will automatically resolve string outputs to files within the project or local filesystem. For example (with C++):
#include <iostream>
int main() {
std::cout << __FILE__ << ':' << __LINE__ << std::endl;
return 0;
}
The above code will generate a reference link when ran within the IDE:
This works from relative paths as well (e.g. the source root or project root):
int main() {
std::cout << __FILE__ << ':' << __LINE__ << std::endl; //LINKS
std::cout << "main.cpp" << ':' << __LINE__ << std::endl; //LINKS
std::cout << "src/main.cpp" << ':' << __LINE__ << std::endl; //LINKS
std::cout << __FILE__ << std::endl; //NO LINK
std::cout << __FILE__ << '#' << "main" << std::endl; //NO LINK
std::cout << __FILE__ << "::" << "main" << std::endl; //NO LINK
std::cout << __FILE__ << ':' << "main" << std::endl; //NO LINK
return 0;
}
I've found some reference to Copy Path/Reference within Jetbrain's documentation, which seems to offer insight into a way to generate a reference link from a line of code, but copying a reference to a function foo simply generates the string "foo" as the reference string. According to a comment on a YouTrack issue, the "Copy Path/Reference" option will work for a reference link only when not pointing to a symbol/reference/declaration (i.e. a blank line), which generates a link such as src/main.cpp:2. The line-number style references also work within the search tools (double-shift). For instance, searching main.cpp:2 will take you to the second line of the main.cpp file.
In short, what are the actual parsing rules surrounding these links? Is FILE_LOCATION:LINE_NUMBER the only permittable reference?