From 41b99c241db3fe7fdf278315fdbe8bec144dc60c Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Sun, 24 Apr 2022 19:57:49 +0530
Subject: [PATCH] Use ICU whole word searching for the viewer's whole word
 search function

---
 src/calibre/gui2/viewer/search.py | 7 ++++---
 src/calibre/utils/icu_test.py     | 1 +
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/src/calibre/gui2/viewer/search.py b/src/calibre/gui2/viewer/search.py
index c819dea109..6ea11cdd41 100644
--- a/src/calibre/gui2/viewer/search.py
+++ b/src/calibre/gui2/viewer/search.py
@@ -313,14 +313,14 @@ def toc_nodes_for_search_result(sr):
 def search_in_name(name, search_query, ctx_size=75):
     raw = searchable_text_for_name(name)[0]
 
-    if search_query.mode in ('word', 'regex') or search_query.case_sensitive:
+    if search_query.mode == 'regex' or search_query.case_sensitive:
         def miter():
             for match in search_query.regex.finditer(raw):
                 yield match.span()
     else:
         spans = []
         a = lambda s, l: spans.append((s, s + l))
-        primary_collator_without_punctuation().find_all(search_query.text, raw, a)
+        primary_collator_without_punctuation().find_all(search_query.text, raw, a, search_query.mode == 'word')
         miter = lambda: spans
 
     for (start, end) in miter():
@@ -380,7 +380,8 @@ class SearchInput(QWidget):  # {{{
             'Choose the type of search: <ul>'
             '<li><b>Contains</b> will search for the entered text anywhere. It will ignore punctuation,'
             ' spaces and accents, unless Case sensitive searching is enabled.'
-            '<li><b>Whole words</b> will search for whole words that equal the entered text.'
+            '<li><b>Whole words</b> will search for whole words that equal the entered text. As with'
+            ' "Contains" searches punctuation and accents are ignored.'
             '<li><b>Regex</b> will interpret the text as a regular expression.'
         ))
         qt.setCurrentIndex(qt.findData(vprefs.get(f'viewer-{self.panel_name}-mode', 'normal') or 'normal'))
diff --git a/src/calibre/utils/icu_test.py b/src/calibre/utils/icu_test.py
index 71be386043..b0edf01b76 100644
--- a/src/calibre/utils/icu_test.py
+++ b/src/calibre/utils/icu_test.py
@@ -127,6 +127,7 @@ class TestICU(unittest.TestCase):
         c = icu.primary_collator_without_punctuation()
         self.ae(c.find('a', 'abc a bc'), (0, 1))
         self.ae(c.find('a', 'abc a bc', True), (4, 1))
+        self.ae(c.find('pena', 'a peñaabc peña', True), (10, 4))
 
     def test_collation_order(self):
         'Testing collation ordering'