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author | bptato <nincsnevem662@gmail.com> | 2024-07-03 17:24:54 +0200 |
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committer | bptato <nincsnevem662@gmail.com> | 2024-07-03 17:34:38 +0200 |
commit | fb68da21497d5bda9057afaf34947258f8c425cb (patch) | |
tree | 460bfaed14717416e0d4067f257aadc88f0babf9 /doc/troubleshooting.md | |
parent | d0c43d69f5c64d01230c79458f473eb9ecd5a7e1 (diff) | |
download | chawan-fb68da21497d5bda9057afaf34947258f8c425cb.tar.gz |
Update docs
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diff --git a/doc/troubleshooting.md b/doc/troubleshooting.md new file mode 100644 index 00000000..eea64aff --- /dev/null +++ b/doc/troubleshooting.md @@ -0,0 +1,116 @@ +# Troubleshooting Chawan + +This document lists common problems you may run into when using Chawan. + +## I can't select/copy text with my mouse? + +Your options are: + +* Use `v` (and copy with `y`). Drawback: requires keyboard +* Hold down the shift key while selecting. Drawback: can only select text + currently on the screen +* Disable mouse support (`input.use-mouse = false` in config.toml). Drawback: + see above (plus now you can't use the mouse to move on the screen) + +## Why do I get strange/incorrect/ugly colors? + +Chawan's display capabilities depend on what your terminal reports. In +particular: + +* if the `$COLORTERM` variable is not set, then it may fall back to 8-bit or + ANSI colors +* if it does not respond to querying the background color, then Chawan's color + contrast correction will likely malfunction + +You can fix this manually by exporting `COLORTERM=truecolor` and +`display.default-background-color`/`display.default-foreground-color` +variables. See [config.md](config.md#display) for details. + +## Can I view Markdown files using Chawan? + +Yes; Chawan now has a built-in markdown converter. If you don't like it, you +can always [replace it](mailcap.md) with e.g. pandoc. + +## I set my `$PAGER` to `cha` and now man pages are unreadable. + +Most `man` implementations print formatted manual pages by default, which +Chawan *can* parse if they are passed through standard input. + +Unfortunately, mandoc passes us the formatted document as a *file*, which Chawan +reasonably interprets as plain text without formatting. + +At this point you have two options: + +* `export PAGER='cha -T text/x-ansi'` and see that man suddenly works as + expected. +* `alias man=mancha` and see that man suddenly works better than expected. + +Ideally you should do both, to deal with cases like git help which shells out to +man directly. + +## Where are the keybindings? + +Please run `cha about:chawan` for a list of default keybindings. Users familiar +with *vi*, *vim*, etc. should find these defaults familiar. + +A w3m-like keymap also exists at [bonus/w3m.toml](bonus/w3m.toml). Note that not +every w3m feature is implemented yet, so it's not 100% compatible. + +## How do I view text files with wrapping? + +By default, text files are not auto-wrapped, so viewing plain text files that +were not wrapped properly by the authors is somewhat annoying. + +A workaround is to add this to your [config](config.md#keybindings)'s +`[page]` section: + +```toml +' f' = "pager.externFilterSource('fmt')" +``` + +and then press `<space> f` to view a wrapped version of the current text +file. (This assumes your system has an `fmt` program - if not, `fold -s` may +be an alternative.) + +To always automatically wrap, you can add this to your +[user style](config.md#stylesheets): + +```css +plaintext { white-space: pre-wrap } +``` + +To do the same for HTML and ANSI text, use `plaintext, pre`. + +## Why does `$WEBSITE` look awful? + +Usually, this is because it uses some CSS features that are not yet implemented +in Chawan. The most common offenders are grid and CSS variables. + +There are three ways of dealing with this: + +1. If the website's contents are mostly text, install + [rdrview](https://github.com/eafer/rdrview). Then bind the following command + to a key of your choice in the [config](config.md#keybindings) + (e.g. `<space> r`):<br> + `' r' = "pager.externFilterSource('rdrview -H -u \"$CHA_URL\"')"`<br> + This does not fix the core problem, but will significantly improve your + reading experience anyway. +2. Complain [here](https://todo.sr.ht/~bptato/chawan), and wait until the + problem goes away. +3. Write a patch to fix the problem, and send it + [here](https://lists.sr.ht/~bptato/chawan-devel). + +## `$WEBSITE`'s interactive features don't work! + +Some potential fixes: + +* Logging in to websites requires cookies. Some websites also require cookie + sharing across domains. For security reasons, Chawan does not allow any of + this by default, so you will have to fiddle with siteconf to fix it. See + [config.md#siteconf](config.md#siteconf) for details. +* Set the `referer-from` siteconf value to true; this will cause Chawan to send + a `Referer` header when navigating to other URLs from the target URL. +* Enable JavaScript. If something broke, type M-c M-c to check the browser + console, then follow step 3. of the previous answer.<br> + Warning: remote JavaScript execution is inherently unsafe. Please only enable + JavaScript on websites you trust. |