This linter plugin for Atom's Linter typechecks CSPM files using FDR4's typechecker.
See also language-cspm which adds syntax highlighting support for CSPM files to Atom.
If you have a large CSPM project, and have split your file up into multiple files, you can indicate the root file
using a special comment. For example, suppose you have a file inc.csp that is included by main.csp and, when
editing inc.csp, you would like the typechecker to typecheck the root file, main.csp instead. This can be
accomplished by including a line -- root: main.csp as the very first line of inc.csp.
In general, if a CSPM file includes a line of the form -- root: relative_path_to_a_file then the typechecker will
instead be invoked on the specified file. Note that the file path is relative to the current file.