Mapfile validation rules

[geographika]

This issue is a placeholder for creating a list of rules to check in a Mapfile.
See also MapServer/MapServer#6172 and MapServer/MapServer#6170 (comment)

• Check for DUMP TRUE # allow GML export
• MAXSCALE - MAXSCALEDENOM
• MINSCALE - MINSCALEDENOM
• labelmaxscale labelmaxscaledenom
• msProcessProjection(): Projection library error. proj error "no arguments in initialization list" for "init=epsg:26915" - check that PROJ_LIB is before projection block!
• If layer is not queryable
• if a class has an EXPRESSION and it is a string comparison or regex then the layer needs a CLASSITEM

When manually adding OUTPUTFORMATS - should an image type be first? Otherwise:

    return _mapscript.mapObj_drawLegend(self, scale_independent)
_mapscript.MapServerError: msDrawLegend(): General error message. unsupported output format

Due to shapezip being the first format. Or check if an IMAGETYPE is set? Can also validate these against list (this is also done by MapServer if missing - msPostMapParseOutputFormatSetup(): General error message. Unable to select IMAGETYPE asdas'.`).