andrewmortag commented 3 years ago

Hi, im running W10, Python39 and have ReText 7.2.1 installed by pip3 with all mentioned packages. I want to use this amazing editor for rst texts. Unfortunatly the preview in Retest dosn't work.

Regards, Andrew

Python -m Retext in powershell show up with:

PS C:\WINDOWS\system32> python -m ReText Using configuration file: C:/Users/UsEr/AppData/Roaming/ReText project/ReText.ini C:\Program Files\Python39\lib\site-packages\ReText\window.py:404: RuntimeWarning: Dictionary for language 'de_DE' could not be found Please check https://pyenchant.github.io/pyenchant/ for details warnings.warn(str(e), RuntimeWarning) [1584:15984:0522/145536.758:ERROR:cache_util_win.cc(19)] Unable to move the cache: 5 [1584:15984:0522/145536.758:ERROR:cache_util.cc(140)] Unable to move cache folder C:\Users\UsEr\AppData\Local\ReText project\ReText\QtWebEngine\Default\GPUCache to C:\Users\UsEr\AppData\Local\ReText project\ReText\QtWebEngine\Default\old_GPUCache_000 [1584:15984:0522/145536.759:ERROR:disk_cache.cc(168)] Unable to create cache [1584:15984:0522/145536.762:ERROR:shader_disk_cache.cc(620)] Shader Cache Creation failed: -2

mitya57 commented 3 years ago

Hi!

It looks like these errors are not specific to ReText, but also happen with other Qt / PyQt applications using Qt WebEngine.

Is the preview completely blank for you, or only some of the content is missing? Does this happen with only a specific document or with all documents? Also can you check if unselecting “Edit → Use WebEngine (Chromium) renderer” helps?

andrewmortag commented 3 years ago

Hi Thank you for reply.

My observations so far:

I loaded first a rst doc i made with a different editor (geany) in order to see the preview effect => the preview doesn't work. It's completly blank.
I opend Retext, started a new doc and enterd some rst formated text => the preview shows pretty formated text.
Checking or unchecking of the option "Edit → Use WebEngine (Chromium) renderer" dosent't seem to have an effect. Rst in a new window is shown in preview. The loaded file made with a different editor results in a complete blank preview.
It is possible to start Retext from cmd or powershell and the preview is working in case of rst text in a new text window.
It is not possible to start Retext directly in explorer from C:\Program Files\Python39\Scripts until i start with "run as admin".
The 2 selectors "format" and "symbols" are disabled all the time. What to do for enabling the selectors?

Regards, Andrew

mitya57 commented 3 years ago

The behavior you are describing is very strange. I want to ask you some questions that may shed more light on this:

When the preview does not work, can you open “Edit → View HTML code” and check what is there? Is there anything between <body> and </body>?
What happens if you create a new document in ReText, fill it with some text, then save it, close and open again. Does the preview work?
If the answer to the previous question is ‘no’, then can you create two files with the same content, one with Geany and one with ReText, then either compare them in some hex viewer, or create a zip and attach it here? I want to see what are the differences (maybe encoding, different format for line endings, byte order marks).

It is not possible to start Retext directly in explorer from C:\Program Files\Python39\Scripts until i start with "run as admin".

This may also be a clue. ReText uses a separate process for rendering. Maybe there are some issues with permissions for that process?

I have very little knowledge of Windows so I can’t say why it happens. ReText definitely does not need administrator/superuser rights for anything. And it’s surprising that python -m ReText works and calling the script directly does not. Maybe you can try changing some permissions of that script?

The 2 selectors "format" and "symbols" are disabled all the time. What to do for enabling the selectors?

It is normal. These boxes are only for Markdown and not for reStructuredText. In fact, I consider them of little use even for Markdown, but some users like them so I keep them for now.

Hrissimir commented 3 years ago

This happens because of bug in the `markups` package.

Assumptions:

User is running Windows10 64-bit
Python3.9 is installed to C:\Program Files\Python39
Type where python in CMD -> should print: C:\Program Files\Python39\python.exe
ReText is installed in the global environment using CMD as-admin -> pip install ReText pyenchant PyQtWebEngine
Type where retext in CMD -> should print: C:\Program Files\Python39\Scripts\retext.exe

Really-dirty-fix for the issue:

Close ReText
Run Notepad++ as-admin and
- open C:\Program Files\Python39\Lib\site-packages\markups\restructuredtext.py
- if running from virtual environment - use location relative to env root

Change the following code:

class CustomHTMLTranslator(HTMLTranslator):
def starttag(self, node, tagname, suffix='\n', empty=False, **attributes):
    if node.line is not None:
        attributes['data-posmap'] = node.line
    return super().starttag(node, tagname, suffix, empty, **attributes)

To look like:

class CustomHTMLTranslator(HTMLTranslator):
def starttag(self, node, tagname, suffix='\n', empty=False, **attributes):
    if (node is not None) and hasattr(node, 'line') and (node.line is not None):
        attributes['data-posmap'] = node.line
    return super().starttag(node, tagname, suffix, empty, **attributes)

Ctrl+S and close Notepad++
Open ReText from CMD non-admin by either of:
- retext
- python -m ReText
All .rst files should now render without issues

Hrissimir commented 3 years ago

Created:

pymarkups issue here
PR with fix here

To all ReText authors/contributors: Thank you for the great app!

retext-project / retext

No preview in Retest #560

This happens because of bug in the `markups` package.

Assumptions:

Really-dirty-fix for the issue:

retext-project / retext

No preview in Retest #560

This happens because of bug in the markups package.

Assumptions:

Really-dirty-fix for the issue:

This happens because of bug in the `markups` package.