[cmdpalette-] make fuzzy match case-insensitive

lowercase and uppercase patterns were failing to match to uppercase strings.

Author: midichef

visidata/fuzzymatch.py

@@ -367,15 +367,16 @@ def _format_match(s, positions):
 
 @VisiData.api
 def fuzzymatch(vd, haystack:"list[dict[str, str]]", needles:"list[str]) -> list[CombinedMatch]"):
-    'Return sorted list of matching dict values in haystack, augmenting the input dicts with _score:int and _positions:dict[k,set[int]] where k is each non-_ key in the haystack dict.'
-
+    '''Perform case-insensitive matching. Return sorted list of matching dict values in haystack, augmenting the input dicts with _score:int and _positions:dict[k,set[int]] where k is each non-_ key in the haystack dict.'''
+    needles = [ p.lower() for p in needles]
     matches = []
     for h in haystack:
         match = {}
         formatted_hay = {}
         for k, v in h.items():
             if k[0] == '_': continue
             positions = set()
+            v = v.lower()
             for p in needles:
                 mr = _fuzzymatch(v, p)
                 if mr.score > 0: