https://bugs.kde.org/show_bug.cgi?id=323262
Bug ID: 323262
Summary: "Find previous" fails at end of line
Classification: Unclassified
Product: okular
Version: 0.17.60
Platform: unspecified
OS: Linux
Status: UNCONFIRMED
Severity: normal
Priority: NOR
Component: general
Assignee: okular-devel@kde.org
Reporter: jaanvaja...@hot.ee
When clicking the "Previous" button and the search string is at the end of the
line, the search fails. Debugging shows that this is because in the function
TextPagePrivate::findTextInternalBackward in textpage.cpp the line
if ( !comparer( str.midRef(offset, min ), query.midRef( j - min + 1, min ),
&resStrLen, &resQueryLen ) )
is buggy: e. g. if line in a PDF file consists of letters "abc" and the search
string is also "abc", then str (the text for the last entity of the line) is
"c\n", offset=0, min=2, j=2, so the code cited above compares "c\n" to "bc" and
finds no match.
The similar line in findTextInternalForward is also buggy if it is possible for
entities to have multi-character texts of other forms than <single character> +
<newline>, but I don't know if that can happen.
Reproducible: Always
Steps to Reproduce:
1. Open the attached file lineEnd.pdf.
2. Press F3 and type "abc". Okular highlights the first "abc".
3. Click Next. Okular highlights the next "abc".
4. Click Previous.
Actual Results:
Okular finds no match (the search box takes a reddish color).
Expected Results:
Okular should highlight the first "abc".
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