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Re: Convert the shell command used in emacs init-file into its normal ve


From: Hongyi Zhao
Subject: Re: Convert the shell command used in emacs init-file into its normal version.
Date: Wed, 9 Jun 2021 15:57:48 +0800

On Wed, Jun 9, 2021 at 3:23 PM Yuri Khan <yuri.v.khan@gmail.com> wrote:
>
> On Wed, 9 Jun 2021 at 13:49, Hongyi Zhao <hongyi.zhao@gmail.com> wrote:
>
> > I found the following command from
> > <https://github.com/jethrokuan/mathpix.el/blob/02016ca4aee9ffce32e730372f45de35c00a3657/mathpix.el#L49>:
> >
> > "curl -s https://api.mathpix.com/v3/latex -X POST -H \"app_id: %s\" -H
> > \"app_key: %s\" -H \"Content-Type: application/json\" --data
> > \"{\\\"src\\\":\\\"%s\\\",\\\"formats\\\":
> > [\\\"latex_styled\\\"],\\\"format_options\\\":{\\\"latex_styled\\\":
> > {\\\"transforms\\\": [\\\"rm_spaces\\\"]}}}\""
> >
> > I want to obtain its normal version and test it under the system's
> > shell terminal. Any hints for deleting the escape characters correctly
> > from the above command in Emacs way?
>
> You have basically two options:
>
> 1. Knowing the string syntax rules, you can interpret the escapes in
> your head, removing the double quotes at start and end and replacing
> each \" → " and \\ → \.
>
> 2. Or you can use an Emacs function that accepts a string and causes
> its interpreted contents to be inserted into some buffer, e.g.
> (message "…") or (insert "…").
>
> $ emacs -Q
>
> (insert "curl -s https://api.mathpix.com/v3/latex -X POST -H \"app_id:
> %s\" -H \"app_key: %s\" -H \"Content-Type: application/json\" --data
> \"{\\\"src\\\":\\\"%s\\\",\\\"formats\\\":[\\\"latex_styled\\\"],\\\"format_options\\\":{\\\"latex_styled\\\":{\\\"transforms\\\":
> [\\\"rm_spaces\\\"]}}}\"")
>
> Either way, you get:

I checked them with C-j, the (message "…") method won't do the trick
while the (insert "…") does.

>
> curl -s https://api.mathpix.com/v3/latex -X POST -H "app_id: %s" -H
> "app_key: %s" -H "Content-Type: application/json" --data
> "{\"src\":\"%s\",\"formats\":[\"latex_styled\"],\"format_options\":{\"latex_styled\":{\"transforms\":
> [\"rm_spaces\"]}}}"
>
> Before you can try this in your terminal, you’ll need to substitute
> the %s placeholders.



-- 
Assoc. Prof. Hongyi Zhao <hongyi.zhao@gmail.com>
Theory and Simulation of Materials
Hebei Vocational University of Technology and Engineering
NO. 552 North Gangtie Road, Xingtai, China



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