It seems fortls doesn’t recognize statement labels as equivalent when they have different numbers of leading zeros, such as 10 and 0010. It reports an error for “Unexpected end of scope…”
I encountered this when bringing some legacy code into a modern project. Here’s a minimal reproducible example:
do 10 i=1,3
print *, i
0010 continue
end
My AI agent told me it looked at the Python source code of fortls and discovered it treats statement labels as text strings rather than integers. That may be the reason for the bug.
source & further reading
fortran-lang.discourse.group — original article
A Fortran Standards MCP Server
FOSSIL v3.0.0 is out
Fparse: Fortran function parser