ldml.LocaleScanner.__find(): only Error if no matches found

The existing caller returns early on finding a match, so never ran off
the end of the iteration unless there were no matches. I'll soon be
adding a new caller that wants to iterate all matches, so will run off
the end even when there are some. So only raise the Error if we found
nothing.

Pick-to: 6.5
Task-number: QTBUG-115158
Change-Id: I1cae4674eb5e83c433554c15ecc4441b756f20eb
Reviewed-by: Cristian Maureira-Fredes <cristian.maureira-fredes@qt.io>
(cherry picked from commit c8b70f4e511e26c73a9da453f4c2b5624e66a2c1)
This commit is contained in:
Edward Welbourne 2024-01-23 21:14:47 +01:00
parent af4bccb562
commit a7338bd830

View File

@ -410,7 +410,7 @@ class LocaleScanner (object):
) # Used for month and day names
def __find(self, xpath):
retries = [ xpath.split('/') ]
retries, foundNone = [ xpath.split('/') ], True
while retries:
tags, elts, roots = retries.pop(), self.nodes, (self.base.root,)
for selector in tags:
@ -420,6 +420,8 @@ class LocaleScanner (object):
break
else: # Found matching elements
if elts:
foundNone = False
# Possibly filter elts to prefer the least drafty ?
for elt in elts:
yield elt
@ -439,19 +441,23 @@ class LocaleScanner (object):
if not roots:
if retries: # Let outer loop fall back on an alias path:
break
sought = '/'.join(tags)
if sought != xpath:
sought += f' (for {xpath})'
raise Error(f'All lack child {selector} for {sought} in {self.name}')
if foundNone:
sought = '/'.join(tags)
if sought != xpath:
sought += f' (for {xpath})'
raise Error(f'All lack child {selector} for {sought} in {self.name}')
else: # Found matching elements
if roots:
foundNone = False
for elt in roots:
yield elt
sought = '/'.join(tags)
if sought != xpath:
sought += f' (for {xpath})'
raise Error(f'No {sought} in {self.name}')
if foundNone:
sought = '/'.join(tags)
if sought != xpath:
sought += f' (for {xpath})'
raise Error(f'No {sought} in {self.name}')
def __currencyDisplayName(self, stem):
try: