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bug#59906: 29.0.60; typescript-ts-mode is not highlighting escape seque
From: |
Yuan Fu |
Subject: |
bug#59906: 29.0.60; typescript-ts-mode is not highlighting escape sequences |
Date: |
Fri, 9 Dec 2022 12:41:59 -0800 |
Jostein Kjønigsen <jostein@secure.kjonigsen.net> writes:
> On 08.12.2022 16:19, Theodor Thornhill wrote:
>> Jostein Kjønigsen <jostein@secure.kjonigsen.net> writes:
>>
>>> In a buffer with typescript-ts-mode activated, write the following code:
>>>
>>> const test = "quoted\"string\" contents";
>>>
>>> The entire text, include the \" is highlighted as strings, and escape
>>> sequences are not handled:
>>>
>>> This code has the following tree-sitter syntax tree:
>>>
>>> (lexical_declaration kind: const
>>> (variable_declarator name: (identifier) value: =
>>> (string " (string_fragment) (escape_sequence) (string_fragment)
>>> (escape_sequence) (string_fragment) "))
>>> ;)
>>>
>>> In typescript-ts-mode we seemingly have rules to handle fontification of
>>> escape sequences:
>>>
>>> :language language
>>> :feature 'escape-sequence
>>> :override t
>>> '((escape_sequence) @font-lock-escape-face))
>>>
>>> This feature is however not activated in the major-mode setup:
>>>
>>> (setq-local treesit-font-lock-feature-list
>>> '((comment declaration)
>>> (keyword string)
>>> (constant expression identifier number pattern property)
>>> (bracket delimiter)))
>>>
>>> Naively I assumed that simply adding this feature would activate this rule,
>>> but still \" is fontified as string.
>> Yeah, there was an error there. See below patch.
>>
>> Yuan, can you install this?
>>
>> Theo
>>
> Yeah that works for me.
>
> Yuan: another vote for installing right here :)
Yep, applied, many thanks!
Yuan