bug#24434: [25.1.1] parse-partial-sexp: opening delimiter missed

bug#24434: [25.1.1] parse-partial-sexp: opening delimiter missed

[Andreas Röhler]

python-mode, problem seems not restricted to.

When after curly bracket in example below from
https://docs.python.org/3/library/string.html#formatstrings
6.1.3. Format String Syntax:

str.format("Bring me a {

depth-in-paren. i.e.

(nth 0 (parse-partial-sexp ...))

should indicate "2", but says "1".

When outside a string, `{' is recognized as opener.


GNU Emacs 25.1.1 (i686-pc-linux-gnu, GTK+ Version 3.14.5) of 2016-08-22

bug#24434: [25.1.1] parse-partial-sexp: opening delimiter missed

[Noam Postavsky]

tag 24434 moreinfo
quit

On Wed, Sep 14, 2016 at 5:46 AM, Andreas Röhler
<andreas.roehler@easy-emacs.de> wrote:
> python-mode, problem seems not restricted to.
>
> When after curly bracket in example below from
> https://docs.python.org/3/library/string.html#formatstrings
> 6.1.3. Format String Syntax:
>
> str.format("Bring me a {
>
> depth-in-paren. i.e.
>
> (nth 0 (parse-partial-sexp ...))

This bug report is a bit incomplete, what do you put for "..."?

>
> should indicate "2", but says "1".
>
> When outside a string, `{' is recognized as opener.

I think this is correct, parse-partial-sexp detects whether it's in a
string-literal or not. If you want to parse the contents of the string
literal, FROM should be inside the literal.

bug#24434: [25.1.1] parse-partial-sexp: opening delimiter missed

[Andreas Röhler]

On 14.09.2016 16:04, Noam Postavsky wrote:
> tag 24434 moreinfo
> quit
>
> On Wed, Sep 14, 2016 at 5:46 AM, Andreas Röhler
> <andreas.roehler@easy-emacs.de> wrote:
>> python-mode, problem seems not restricted to.
>>
>> When after curly bracket in example below from
>> https://docs.python.org/3/library/string.html#formatstrings
>> 6.1.3. Format String Syntax:
>>
>> str.format("Bring me a {
>>
>> depth-in-paren. i.e.
>>
>> (nth 0 (parse-partial-sexp ...))
> This bug report is a bit incomplete, what do you put for "..."?

(point-min) (point)

>
>> should indicate "2", but says "1".
>>
>> When outside a string, `{' is recognized as opener.
> I think this is correct, parse-partial-sexp detects whether it's in a
> string-literal or not. If you want to parse the contents of the string
> literal, FROM should be inside the literal.

Thanks. This works for me:

(defun in-string-interpolation-maybe ()
   (let ((pps (parse-partial-sexp (point-min) (point))))
     (and (nth 3 pps) (nth 3 (parse-partial-sexp (1+ (nth 8 pps)) 
(point))))))

bug#24434: [25.1.1] parse-partial-sexp: opening delimiter missed

[npostavs]

tags 24434 = notabug
close 24434
quit

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

>>>
>>> When outside a string, `{' is recognized as opener.
>> I think this is correct, parse-partial-sexp detects whether it's in a
>> string-literal or not. If you want to parse the contents of the string
>> literal, FROM should be inside the literal.
>
> Thanks. This works for me:
>
> (defun in-string-interpolation-maybe ()
>   (let ((pps (parse-partial-sexp (point-min) (point))))
>     (and (nth 3 pps) (nth 3 (parse-partial-sexp (1+ (nth 8 pps))
> (point))))))

Okay, looks like everything is functioning as expected, closing.