notepad-plus-plus / notepad-plus-plus/notepad-plus-plus
Certain combinations can't be found using extended HEX find (\x...)
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Description
Description of the Issue
Using extended find (\x...)
Can't find SI following a NUL (\x00\x0F).
Can't find NUL following a NUL (\x00\x00).
Can't find \x84, but can find \x81.
Certain to be many others too.
Steps to Reproduce the Issue
- Encoding ANSI
- Convert the string "00000F8481" to ASCII
- Find using extended:
\x00 Found both occurrences
\x0F Found
\x84 Not Found
\x81 Found
\x00\x0F Not Found
\x00\x00 Not Found
Expected Behavior
Found
Actual Behavior
Not found
Debug Information
Notepad++ v7.5.7 (64-bit)
Build time : Jun 29 2018 - 00:53:58
Path : C:\Program Files\Notepad++\notepad++.exe
Admin mode : OFF
Local Conf mode : OFF
OS : Windows 8.1 (64-bit)
Plugins : DSpellCheck.dll mimeTools.dll NppConverter.dll
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reproducing the reported cases in Notepad++ v7.5.7 using ANSI encoding, ASCII conversion, and extended find with the supplied byte sequences. No source file or test is named; done means the previously failing sequences, including \x84, \x00\x0F, and \x00\x00, are found as expected and covered by verification.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- cpp
- Domain
- desktop-dev, search
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 45/100