bug#73978: 31.0.50; Text syntax applied on too many things in tsx-ts-mode

[Yuan Fu <casouri@gmail.com>]

> On Nov 24, 2024, at 5:45 AM, Dmitry Gutov <dmitry@gutov.dev> wrote:
> 
> On 24/11/2024 09:47, Eli Zaretskii wrote:
>>> Hey sorry, I haven’t applied the patch. Actually, I want to ask you a question before I do: is there a way to mark a single character in buffer in string syntax? The only way I’m aware of is to mark string delimiter syntax to the start and end of the string, but that doesn’t work for a single character.
>>> 
>>> Take the following snippet as an example:
>>> 
>>> <button>a<button>
>>> 
>>> I want to apply string syntax to “a”.
>>> 
>>> If there’s no such way, I guess just not applying the string syntax in such case is also an option.
>> There's a syntax-table text property, see the node "Syntax Properties"
>> in the ELisp manual.  Would that do the job?
> 
> In particular, the "generic string" syntax property, this one
> 
>  (string-to-syntax "|")
> 
> You put it on the first and the last chars of a "generic string”.

The problem is, that doesn’t work when there’s only one character. Take the snippet as an example:

<button>a</button>

You can’t put the string fence syntax on the “a”, because there isn’t a closing fence to close it.

Yuan