Python, syntax-ppss

Python, syntax-ppss

[Andreas Röhler]

Hi,

when calling (syntax-ppss) at the end of the Python snippet below, it yields

(1 6 7 34 nil nil 0 nil 8 (6) nil)

whereas nth 1 --depth in parens--, should tell "2", as the opening curly 
bracket should count too:

---
print(f"Addition: {m1 + m2
---

Right?

Thanks,

Andreas

GNU Emacs 30.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.24.33, 
cairo version 1.16.0) of 2023-02-01

Re: Python, syntax-ppss

[Arash Esbati]

Andreas Röhler <andreas.roehler@easy-emacs.de> writes:

> when calling (syntax-ppss) at the end of the Python snippet below, it yields
>
> (1 6 7 34 nil nil 0 nil 8 (6) nil)
>
> whereas nth 1 --depth in parens--, should tell "2", as the opening
> curly bracket should count too:
>
> ---
> print(f"Addition: {m1 + m2
> ---

The 34 says that the point is inside a string, more precisely, this is
the character that will terminate the string[1] -- in this case " which
has the codepoint 34.  The parser doesn't count the depth in parens
inside strings.  Emacs sees only one open parentheses, and that in
buffer position 6.

Best, Arash

Footnotes:
[1]  https://www.gnu.org/software/emacs/manual/html_node/elisp/Parser-State.html

Re: Python, syntax-ppss

[Andreas Röhler]

Am 06.02.23 um 12:53 schrieb Arash Esbati:
> Andreas Röhler <andreas.roehler@easy-emacs.de> writes:
>
>> when calling (syntax-ppss) at the end of the Python snippet below, it yields
>>
>> (1 6 7 34 nil nil 0 nil 8 (6) nil)
>>
>> whereas nth 1 --depth in parens--, should tell "2", as the opening
>> curly bracket should count too:
>>
>> ---
>> print(f"Addition: {m1 + m2
>> ---
> The 34 says that the point is inside a string, more precisely, this is
> the character that will terminate the string[1] -- in this case " which
> has the codepoint 34.  The parser doesn't count the depth in parens
> inside strings.  Emacs sees only one open parentheses, and that in
> buffer position 6.
>
> Best, Arash
>
> Footnotes:
> [1]  https://www.gnu.org/software/emacs/manual/html_node/elisp/Parser-State.html


Thanks. So I have to provide some extra checks for this case.