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Merge pull request #3678 from lonvia/search-tweaks

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Some minor tweaks to postcode parsing in query
This commit is contained in:
Sarah Hoffmann
2025-03-19 16:00:52 +01:00
committed by GitHub
parent 72d3360fa2 9419c5adb2
commit e4295dba10
2 changed files with 17 additions and 6 deletions
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8
src/nominatim_api/search/icu_tokenizer.py
View File

@@ -193,10 +193,12 @@ class ICUQueryAnalyzer(AbstractQueryAnalyzer):
self.add_extra_tokens(query)
for start, end, pc in self.postcode_parser.parse(query):
term = ' '.join(n.term_lookup for n in query.nodes[start + 1:end + 1])
query.add_token(qmod.TokenRange(start, end),
qmod.TOKEN_POSTCODE,
ICUToken(penalty=0.1, token=0, count=1, addr_count=1,
lookup_word=pc, word_token=pc, info=None))
lookup_word=pc, word_token=term,
info=None))
self.rerank_tokens(query)
log().table_dump('Word tokens', _dump_word_tokens(query))
@@ -267,10 +269,10 @@ class ICUQueryAnalyzer(AbstractQueryAnalyzer):
"""
for i, node, tlist in query.iter_token_lists():
if tlist.ttype == qmod.TOKEN_POSTCODE:
tlen = len(cast(ICUToken, tlist.tokens[0]).word_token)
for repl in node.starting:
if repl.end == tlist.end and repl.ttype != qmod.TOKEN_POSTCODE \
and (repl.ttype != qmod.TOKEN_HOUSENUMBER
or len(tlist.tokens[0].lookup_word) > 4):
and (repl.ttype != qmod.TOKEN_HOUSENUMBER or tlen > 4):
repl.add_penalty(0.39)
elif (tlist.ttype == qmod.TOKEN_HOUSENUMBER
and len(tlist.tokens[0].lookup_word) <= 3):

15
src/nominatim_api/search/token_assignment.py
View File

@@ -269,10 +269,9 @@ class _TokenSequence:
# <address>,<postcode> should give preference to address search
if base.postcode.start == 0:
penalty = self.penalty
self.direction = -1 # name searches are only possible backwards
else:
penalty = self.penalty + 0.1
self.direction = 1 # name searches are only possible forwards
penalty += 0.1 * max(0, len(base.address) - 1)
yield dataclasses.replace(base, penalty=penalty)
def _get_assignments_address_forward(self, base: TokenAssignment,
@@ -282,6 +281,11 @@ class _TokenSequence:
"""
first = base.address[0]
# The postcode must come after the name.
if base.postcode and base.postcode < first:
log().var_dump('skip forward', (base.postcode, first))
return
log().comment('first word = name')
yield dataclasses.replace(base, penalty=self.penalty,
name=first, address=base.address[1:])
@@ -317,7 +321,12 @@ class _TokenSequence:
"""
last = base.address[-1]
if self.direction == -1 or len(base.address) > 1:
# The postcode must come before the name for backward direction.
if base.postcode and base.postcode > last:
log().var_dump('skip backward', (base.postcode, last))
return
if self.direction == -1 or len(base.address) > 1 or base.postcode:
log().comment('last word = name')
yield dataclasses.replace(base, penalty=self.penalty,
name=last, address=base.address[:-1])