[Okular-devel] [Bug 266535] New: Searching for an asterisk skips over the second asterisk in a pair of adjacent asterisks

[Eike Hein]

https://bugs.kde.org/show_bug.cgi?id=266535

           Summary: Searching for an asterisk skips over the second
                    asterisk in a pair of adjacent asterisks
           Product: okular
           Version: 0.11.2
          Platform: Compiled Sources
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: NOR
         Component: general
        AssignedTo: okular-devel at kde.org
        ReportedBy: hein at kde.org


The affected Okular version reports itself as 0.11.2, but is a recent SVN
checkout of trunk.

Secondly, let me preface this by saying that '*' refers to a literal, single
asterisk character throughout this report, not to a matching/globbing
expression.

The behavior I'm seeing happens while searching for '*' in a PDF document. The
document is a book, written in English, containing both regular prose writing
and code listings written in Python. Embedded both in the regular English prose
writing and the code listings are many occurences of '**' (i.e. a pair of
adjacent asterisk characters, the power operator in Python), sometimes several
per page, and on many pages.

Using Okular's search feature (accessed by Ctrl+F) to search for '*' in this
book always only marks and jumps to the first '*' in any occurence of '**'.

In other words, a search for '*' may yield the following result, where <> are
used to denote the yellow (in the default color scheme, at any rate) marking
Okular paints:

[...] <*>* [...]

Clicking "Next" on the search bar now will not produce the expected result of
marking the second '*' in the same occurence of '**':

[...] *<*> [...]

Rather, it will jump to the next occurence of a single asterisk or the first
asterisk in a pair of asterisks elsewhere in the text.

I initially assumed there may be some magic there that intentionally produces
this behavior if the subject of a search is found several times adjacent to
each other, but Pino Toscano has indicated this is not the case, so this is
likely a bug.

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