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* bug#61472: 29.0.60; css{-ts}-mode highlight problem
@ 2023-02-13  9:10 牟 桐
  2023-02-14  1:26 ` Dmitry Gutov
  2023-03-30  4:39 ` 牟 桐
  0 siblings, 2 replies; 3+ messages in thread
From: 牟 桐 @ 2023-02-13  9:10 UTC (permalink / raw)
  To: 61472

Hi there,

I met a css-mode's highlight problem.

Create a test.css file:

``` css-ts-mode
.test\.123 {
  color: red;
}
.test\#123 {
  color: blue;
}
.test\@123 {
  color: green;
}
.test\<123 {
  color: brown;
}
.test\`123 {
  color: purple;
}
.test\~123 {
  color: tomato;
}
```

Then import the css file in the test.html file:

``` html-ts-mode
<head>
  <link rel="stylesheet" type="text/css" href="./test.css"  />
</head>
<body>
  <div class="test.123">test.123</div>
  <div class="test#123">test#123</div>
  <div class="test@123">test@123</div>
  <div class="test<123">test<123</div>
  <div class="test`123">test`123</div>
  <div class="test~123">test~123</div>
</body>
```

We can see all of the div inner text are colored correctly, but when
using css-ts-mode, there will be an error face after the escaped
character `\.123` and so on; on `css-mode`, these css class names are not
highlighted.

When I'm checking the [offical
doc](https://www.w3.org/TR/CSS21/syndata.html#characters), I saw that

> In CSS, identifiers can contain only the characters [a-zA-Z0-9] and
> ISO 10646 characters U+00A0 and higher, plus the hyphen (-) and the
> underscore (_)

I don't know whether the major mode is designed to work like this (since
the official said the `.` `#` ... are invalid, perhaps the browser made
them work) or is the major mode's bug.

Thanks ;)


In GNU Emacs 29.0.60 (build 1, x86_64-apple-darwin21.6.0, NS
appkit-2113.60 Version 12.6.3 (Build 21G419)) of 2023-02-13 built on
dalum.local
Repository revision: f49caaa892576e5fa95373c38e6a99904249551c
Repository branch: emacs-29
Windowing system distributor 'Apple', version 10.3.2113
System Description:  macOS 12.6.3

Configured using:
'configure --with-native-compilation=aot'

Configured features:
ACL DBUS GIF GLIB GMP GNUTLS JPEG JSON LCMS2 LIBXML2 MODULES NATIVE_COMP
NOTIFY KQUEUE NS PDUMPER PNG RSVG SQLITE3 THREADS TIFF
TOOLKIT_SCROLL_BARS TREE_SITTER WEBP XIM ZLIB

Important settings:
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  locale-coding-system: utf-8-unix

Major mode: CSS

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  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t

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/Users/mou/.emacs.d/etc/abbrev hides /Applications/Emacs.app/Contents/Resources/lisp/abbrev

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^ permalink raw reply	[flat|nested] 3+ messages in thread
end of thread, other threads:[~2023-03-30  4:39 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2023-02-13  9:10 bug#61472: 29.0.60; css{-ts}-mode highlight problem 牟 桐
2023-02-14  1:26 ` Dmitry Gutov
2023-03-30  4:39 ` 牟 桐

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