Allow some SIG refs to be picked up from comments without separate SIG name. Closes #134

data/sig.py

@@ -19,6 +19,12 @@ class SIG:
     comment_names: list[str] = field(default_factory=list)
     # Regex matcher for references, e.g. for POTA r"[A-Z]{2}\-\d+".
     ref_regex: str | None = None
+    # Identifies that the SIG's reference ID structure defined by its regex is unique across all programmes and
+    # anything else we expect a user to put in a spot comment, and therefore we can pull references out of
+    # spot comments without also needing to see the SIG name first. For example, "OHFF-1234" or "B/G-1234" are
+    # obviously WWFF and WWBOTA, nothing else looks like those. But "SZ09" could be WAB or Tiles, "GB1234" could
+    # conceivably be POTA or ILLW, etc.
+    refs_globally_unique: bool = False
     # Icon to use in the UI when referencing this SIG. Chosen from the Font Awesome set.
     icon: str | None = None
     # Emoji flag for the country or region where this SIG is relevant, if any. If None, this implies the SIG is in

data/spot.py

@@ -11,7 +11,7 @@ from pyhamtools.locator import latlong_to_locator, locator_to_latlong
 
 from core.call_lookup_helper import get_call_info
 from core.config import MAX_SPOT_AGE
-from core.constants import MODE_ALIASES, PROPAGATION_MODES
+from core.constants import MODE_ALIASES, PROPAGATION_MODES, SIGS
 from core.geo_utils import lat_lon_to_cq_zone, lat_lon_to_itu_zone
 from core.sig_lookup_helper import populate_missing_sig_ref_info
 from core.sig_utils import (
@@ -298,6 +298,19 @@ class Spot:
                         for ref_match in ref_matches:
                             self._append_sig_ref_if_missing(SIGRef(id=ref_match.group(3).upper(), sig=found_sig))
 
+            # See if the comment looks like it contains any SIG references *without* the corresponding SIG name, but
+            # where the SIG reference is unique-looking enough that we can't confuse it with any other SIG.
+            if self.comment:
+                for sig in SIGS:
+                    if sig.refs_globally_unique and sig.ref_regex:
+                        ref_matches = re.finditer(r"(^|\W)(" + sig.ref_regex + r")($|\W)", self.comment, re.IGNORECASE)
+                        for ref_match in ref_matches:
+                            # First of all, if we haven't got a SIG for this spot set yet, now we have. This covers things
+                            # like cluster spots where the comment is just "OHFF-1234", now we know it's WWFF.
+                            if not self.sig:
+                                self.sig = sig.name
+                            self._append_sig_ref_if_missing(SIGRef(id=ref_match.group(2).upper(), sig=sig.name))
+
             # Fetch SIG data. In case a particular API doesn't provide a full set of name, lat, lon & grid for a reference
             # in its initial call, we use this code to populate the rest of the data. This includes working out grid refs
             # from WAB and WAI, which count as a SIG even though there's no real lookup, just maths