' in meta value is converted into ’ in a lua filter

' in meta value is converted into ’ in a lua filter

[jiewuza]

I have some meta value like
```
---
test: Children's Cognitive Ability
---
```

In my lua filter:
```
function Meta(meta)
  for k, v in pairs(meta) do
    if k=='test' then
      print(pandoc.utils.stringify(v))
    end
  end
end
```

I find it prints
```
Children’s Cognitive Ability
```

I want to keep the single quote as it is. What should I do?

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Re: ' in meta value is converted into ’ in a lua filter

[John MacFarlane]

YAML metadata fields are interpreted as markdown.

You can escape it to prevent "smartification":

    Children\'s Cognitive Ability

Or disable smartification globally by using `-f
markdown-smart` on the command line.

jiewuza <jiewuza-9Onoh4P/yGk@public.gmane.org> writes:

> I have some meta value like
> ```
> ---
> test: Children's Cognitive Ability
> ---
> ```
>
> In my lua filter:
> ```
> function Meta(meta)
>   for k, v in pairs(meta) do
>     if k=='test' then
>       print(pandoc.utils.stringify(v))
>     end
>   end
> end
> ```
>
> I find it prints
> ```
> Children’s Cognitive Ability
> ```
>
> I want to keep the single quote as it is. What should I do?
>
> -- 
> You received this message because you are subscribed to the Google Groups "pandoc-discuss" group.
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Re: ' in meta value is converted into ’ in a lua filter

[jiewuza]

I checked the manual, `smart` has effect on quotes and dashes.
Instead of disabling smart, I have to escape it to minimize the effect.

BTW, if it is for the title value
```
---
title: Children's Cognitive Ability
---
```

I get the expected result withouth escaping the quote or disabling smart:

```
\title{Children's Cognitive Ability}
```

Pandoc deals with it differently from a lua filter?


John MacFarlane <jgm-TVLZxgkOlNX2fBVCVOL8/A@public.gmane.org> writes:

> YAML metadata fields are interpreted as markdown.
>
> You can escape it to prevent "smartification":
>
>     Children\'s Cognitive Ability
>
> Or disable smartification globally by using `-f
> markdown-smart` on the command line.
>
> jiewuza <jiewuza-9Onoh4P/yGk@public.gmane.org> writes:
>
>> I have some meta value like
>> ```
>> ---
>> test: Children's Cognitive Ability
>> ---
>> ```
>>
>> In my lua filter:
>> ```
>> function Meta(meta)
>>   for k, v in pairs(meta) do
>>     if k=='test' then
>>       print(pandoc.utils.stringify(v))
>>     end
>>   end
>> end
>> ```
>>
>> I find it prints
>> ```
>> Children’s Cognitive Ability
>> ```
>>
>> I want to keep the single quote as it is. What should I do?
>>
>> -- 
>> You received this message because you are subscribed to the Google Groups "pandoc-discuss" group.
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Re: ' in meta value is converted into ’ in a lua filter

[BPJ]

[-- Attachment #1: Type: text/plain, Size: 4187 bytes --]

I usually use a code span or code block in the metadata when I want it to
stringify verbatim with ASCII quotes, dollars, square brackets etc.
preserved. The stringification function should turn this into a plain
string without any change to the Lua code. Note however that since the
backtick is a reserved character in YAML you must enclose the code span in
a single quoted string and double any single quotes inside the string:

````pandoc-markdown
---
test: '`Children''s cognitive ability`'
block: |
  ```
  Children's cognitive ability.
  Several.
  Lines.
  Of.
  Text.
  ```
---
````

thus in your particular example the backslash escape may be preferable, but
I definitely prefer the code span/block solution when there are many
sensitive characters in the string. A lot of backslash escapes affect
readability negatively, especially when you need to escape backslashes
themselves. For some reason I find `` '`don''t`' `` more readable than ``
don\'t ``, but YMMV.

Den tors 16 maj 2019 09:41jiewuza <jiewuza-9Onoh4P/yGk@public.gmane.org> skrev:

>
> I checked the manual, `smart` has effect on quotes and dashes.
> Instead of disabling smart, I have to escape it to minimize the effect.
>
> BTW, if it is for the title value
> ```
> ---
> title: Children's Cognitive Ability
> ---
> ```
>
> I get the expected result withouth escaping the quote or disabling smart:
>
> ```
> \title{Children's Cognitive Ability}
> ```
>
> Pandoc deals with it differently from a lua filter?
>
>
> John MacFarlane <jgm-TVLZxgkOlNX2fBVCVOL8/A@public.gmane.org> writes:
>
> > YAML metadata fields are interpreted as markdown.
> >
> > You can escape it to prevent "smartification":
> >
> >     Children\'s Cognitive Ability
> >
> > Or disable smartification globally by using `-f
> > markdown-smart` on the command line.
> >
> > jiewuza <jiewuza-9Onoh4P/yGk@public.gmane.org> writes:
> >
> >> I have some meta value like
> >> ```
> >> ---
> >> test: Children's Cognitive Ability
> >> ---
> >> ```
> >>
> >> In my lua filter:
> >> ```
> >> function Meta(meta)
> >>   for k, v in pairs(meta) do
> >>     if k=='test' then
> >>       print(pandoc.utils.stringify(v))
> >>     end
> >>   end
> >> end
> >> ```
> >>
> >> I find it prints
> >> ```
> >> Children’s Cognitive Ability
> >> ```
> >>
> >> I want to keep the single quote as it is. What should I do?
> >>
> >> --
> >> You received this message because you are subscribed to the Google
> Groups "pandoc-discuss" group.
> >> To unsubscribe from this group and stop receiving emails from it, send
> an email to pandoc-discuss+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org
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> >> To view this discussion on the web visit
> https://groups.google.com/d/msgid/pandoc-discuss/m2mujn7txr.fsf%40163.com.
> >> For more options, visit https://groups.google.com/d/optout.
>
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Re: ' in meta value is converted into ’ in a lua filter

[jiewuza]

I also find this: https://github.com/dotmaster/toYaml/issues/1

something inconsistent in pandoc YAML and YAML itself.

John MacFarlane <jgm-TVLZxgkOlNX2fBVCVOL8/A@public.gmane.org> writes:

> YAML metadata fields are interpreted as markdown.
>
> You can escape it to prevent "smartification":
>
>     Children\'s Cognitive Ability
>
> Or disable smartification globally by using `-f
> markdown-smart` on the command line.
>
> jiewuza <jiewuza-9Onoh4P/yGk@public.gmane.org> writes:
>
>> I have some meta value like
>> ```
>> ---
>> test: Children's Cognitive Ability
>> ---
>> ```
>>
>> In my lua filter:
>> ```
>> function Meta(meta)
>>   for k, v in pairs(meta) do
>>     if k=='test' then
>>       print(pandoc.utils.stringify(v))
>>     end
>>   end
>> end
>> ```
>>
>> I find it prints
>> ```
>> Children’s Cognitive Ability
>> ```
>>
>> I want to keep the single quote as it is. What should I do?
>>
>> -- 
>> You received this message because you are subscribed to the Google Groups "pandoc-discuss" group.
>> To unsubscribe from this group and stop receiving emails from it, send an email to pandoc-discuss+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org
>> To post to this group, send email to pandoc-discuss-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org
>> To view this discussion on the web visit https://groups.google.com/d/msgid/pandoc-discuss/m2mujn7txr.fsf%40163.com.
>> For more options, visit https://groups.google.com/d/optout.

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Re: ' in meta value is converted into ’ in a lua filter

[jiewuza]

Thanks.

The `double single-quote` stuff is consistent to https://github.com/dotmaster/toYaml/issues/1

But it is a little complicated.

BPJ <melroch-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> writes:

> I usually use a code span or code block in the metadata when I want it to stringify verbatim with ASCII quotes, dollars, square brackets etc.
> preserved. The stringification function should turn this into a plain string without any change to the Lua code. Note however that since the backtick is a
> reserved character in YAML you must enclose the code span in a single quoted string and double any single quotes inside the string:
>
> ````pandoc-markdown
> ---
> test: '`Children''s cognitive ability`'
> block: |
>   ```
>   Children's cognitive ability.
>   Several.
>   Lines.
>   Of.
>   Text.
>   ```
> ---
> ````
>
> thus in your particular example the backslash escape may be preferable, but I definitely prefer the code span/block solution when there are many
> sensitive characters in the string. A lot of backslash escapes affect readability negatively, especially when you need to escape backslashes
> themselves. For some reason I find `` '`don''t`' `` more readable than `` don\'t ``, but YMMV.
>
> Den tors 16 maj 2019 09:41jiewuza <jiewuza-9Onoh4P/yGk@public.gmane.org> skrev:
>
>  I checked the manual, `smart` has effect on quotes and dashes.
>  Instead of disabling smart, I have to escape it to minimize the effect.
>
>  BTW, if it is for the title value
>  ```
>  ---
>  title: Children's Cognitive Ability
>  ---
>  ```
>
>  I get the expected result withouth escaping the quote or disabling smart:
>
>  ```
>  \title{Children's Cognitive Ability}
>  ```
>
>  Pandoc deals with it differently from a lua filter?
>
>  John MacFarlane <jgm-TVLZxgkOlNX2fBVCVOL8/A@public.gmane.org> writes:
>
>  > YAML metadata fields are interpreted as markdown.
>  >
>  > You can escape it to prevent "smartification":
>  >
>  >     Children\'s Cognitive Ability
>  >
>  > Or disable smartification globally by using `-f
>  > markdown-smart` on the command line.
>  >
>  > jiewuza <jiewuza-9Onoh4P/yGk@public.gmane.org> writes:
>  >
>  >> I have some meta value like
>  >> ```
>  >> ---
>  >> test: Children's Cognitive Ability
>  >> ---
>  >> ```
>  >>
>  >> In my lua filter:
>  >> ```
>  >> function Meta(meta)
>  >>   for k, v in pairs(meta) do
>  >>     if k=='test' then
>  >>       print(pandoc.utils.stringify(v))
>  >>     end
>  >>   end
>  >> end
>  >> ```
>  >>
>  >> I find it prints
>  >> ```
>  >> Children’s Cognitive Ability
>  >> ```
>  >>
>  >> I want to keep the single quote as it is. What should I do?
>  >>
>  >> -- 
>  >> You received this message because you are subscribed to the Google Groups "pandoc-discuss" group.
>  >> To unsubscribe from this group and stop receiving emails from it, send an email to pandoc-discuss+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org
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>  >> For more options, visit https://groups.google.com/d/optout.
>
>  -- 
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Re: ' in meta value is converted into ’ in a lua filter

[BPJ]

[-- Attachment #1: Type: text/plain, Size: 5713 bytes --]

The double single quote is how you escape a single quote inside a single
quoted string in YAML. It makes sense because the single quote itself is
the only character which needs to be escaped inside a single quoted string,
and it's unambiguous because two quoted strings after each other without
anything between is a syntax error in YAML.

Den tors 16 maj 2019 10:55jiewuza <jiewuza-9Onoh4P/yGk@public.gmane.org> skrev:

>
> Thanks.
>
> The `double single-quote` stuff is consistent to
> https://github.com/dotmaster/toYaml/issues/1
>
> But it is a little complicated.
>
> BPJ <melroch-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> writes:
>
> > I usually use a code span or code block in the metadata when I want it
> to stringify verbatim with ASCII quotes, dollars, square brackets etc.
> > preserved. The stringification function should turn this into a plain
> string without any change to the Lua code. Note however that since the
> backtick is a
> > reserved character in YAML you must enclose the code span in a single
> quoted string and double any single quotes inside the string:
> >
> > ````pandoc-markdown
> > ---
> > test: '`Children''s cognitive ability`'
> > block: |
> >   ```
> >   Children's cognitive ability.
> >   Several.
> >   Lines.
> >   Of.
> >   Text.
> >   ```
> > ---
> > ````
> >
> > thus in your particular example the backslash escape may be preferable,
> but I definitely prefer the code span/block solution when there are many
> > sensitive characters in the string. A lot of backslash escapes affect
> readability negatively, especially when you need to escape backslashes
> > themselves. For some reason I find `` '`don''t`' `` more readable than
> `` don\'t ``, but YMMV.
> >
> > Den tors 16 maj 2019 09:41jiewuza <jiewuza-9Onoh4P/yGk@public.gmane.org> skrev:
> >
> >  I checked the manual, `smart` has effect on quotes and dashes.
> >  Instead of disabling smart, I have to escape it to minimize the effect.
> >
> >  BTW, if it is for the title value
> >  ```
> >  ---
> >  title: Children's Cognitive Ability
> >  ---
> >  ```
> >
> >  I get the expected result withouth escaping the quote or disabling
> smart:
> >
> >  ```
> >  \title{Children's Cognitive Ability}
> >  ```
> >
> >  Pandoc deals with it differently from a lua filter?
> >
> >  John MacFarlane <jgm-TVLZxgkOlNX2fBVCVOL8/A@public.gmane.org> writes:
> >
> >  > YAML metadata fields are interpreted as markdown.
> >  >
> >  > You can escape it to prevent "smartification":
> >  >
> >  >     Children\'s Cognitive Ability
> >  >
> >  > Or disable smartification globally by using `-f
> >  > markdown-smart` on the command line.
> >  >
> >  > jiewuza <jiewuza-9Onoh4P/yGk@public.gmane.org> writes:
> >  >
> >  >> I have some meta value like
> >  >> ```
> >  >> ---
> >  >> test: Children's Cognitive Ability
> >  >> ---
> >  >> ```
> >  >>
> >  >> In my lua filter:
> >  >> ```
> >  >> function Meta(meta)
> >  >>   for k, v in pairs(meta) do
> >  >>     if k=='test' then
> >  >>       print(pandoc.utils.stringify(v))
> >  >>     end
> >  >>   end
> >  >> end
> >  >> ```
> >  >>
> >  >> I find it prints
> >  >> ```
> >  >> Children’s Cognitive Ability
> >  >> ```
> >  >>
> >  >> I want to keep the single quote as it is. What should I do?
> >  >>
> >  >> --
> >  >> You received this message because you are subscribed to the Google
> Groups "pandoc-discuss" group.
> >  >> To unsubscribe from this group and stop receiving emails from it,
> send an email to pandoc-discuss+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org
> >  >> To post to this group, send email to pandoc-discuss-/JYPxA39Uh4Ykp1iOSErHA@public.gmane.orgm
> .
> >  >> To view this discussion on the web visit
> https://groups.google.com/d/msgid/pandoc-discuss/m2mujn7txr.fsf%40163.com.
> >  >> For more options, visit https://groups.google.com/d/optout.
> >
> >  --
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>
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Re: ' in meta value is converted into ’ in a lua filter

[BPJ]

[-- Attachment #1: Type: text/plain, Size: 6060 bytes --]

Also you shouldn't rely on random secondary sources.

https://yaml.org/refcard.html


Den tors 16 maj 2019 19:07BPJ <melroch-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> skrev:

> The double single quote is how you escape a single quote inside a single
> quoted string in YAML. It makes sense because the single quote itself is
> the only character which needs to be escaped inside a single quoted string,
> and it's unambiguous because two quoted strings after each other without
> anything between is a syntax error in YAML.
>
> Den tors 16 maj 2019 10:55jiewuza <jiewuza-9Onoh4P/yGk@public.gmane.org> skrev:
>
>>
>> Thanks.
>>
>> The `double single-quote` stuff is consistent to
>> https://github.com/dotmaster/toYaml/issues/1
>>
>> But it is a little complicated.
>>
>> BPJ <melroch-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> writes:
>>
>> > I usually use a code span or code block in the metadata when I want it
>> to stringify verbatim with ASCII quotes, dollars, square brackets etc.
>> > preserved. The stringification function should turn this into a plain
>> string without any change to the Lua code. Note however that since the
>> backtick is a
>> > reserved character in YAML you must enclose the code span in a single
>> quoted string and double any single quotes inside the string:
>> >
>> > ````pandoc-markdown
>> > ---
>> > test: '`Children''s cognitive ability`'
>> > block: |
>> >   ```
>> >   Children's cognitive ability.
>> >   Several.
>> >   Lines.
>> >   Of.
>> >   Text.
>> >   ```
>> > ---
>> > ````
>> >
>> > thus in your particular example the backslash escape may be preferable,
>> but I definitely prefer the code span/block solution when there are many
>> > sensitive characters in the string. A lot of backslash escapes affect
>> readability negatively, especially when you need to escape backslashes
>> > themselves. For some reason I find `` '`don''t`' `` more readable than
>> `` don\'t ``, but YMMV.
>> >
>> > Den tors 16 maj 2019 09:41jiewuza <jiewuza-9Onoh4P/yGk@public.gmane.org> skrev:
>> >
>> >  I checked the manual, `smart` has effect on quotes and dashes.
>> >  Instead of disabling smart, I have to escape it to minimize the effect.
>> >
>> >  BTW, if it is for the title value
>> >  ```
>> >  ---
>> >  title: Children's Cognitive Ability
>> >  ---
>> >  ```
>> >
>> >  I get the expected result withouth escaping the quote or disabling
>> smart:
>> >
>> >  ```
>> >  \title{Children's Cognitive Ability}
>> >  ```
>> >
>> >  Pandoc deals with it differently from a lua filter?
>> >
>> >  John MacFarlane <jgm-TVLZxgkOlNX2fBVCVOL8/A@public.gmane.org> writes:
>> >
>> >  > YAML metadata fields are interpreted as markdown.
>> >  >
>> >  > You can escape it to prevent "smartification":
>> >  >
>> >  >     Children\'s Cognitive Ability
>> >  >
>> >  > Or disable smartification globally by using `-f
>> >  > markdown-smart` on the command line.
>> >  >
>> >  > jiewuza <jiewuza-9Onoh4P/yGk@public.gmane.org> writes:
>> >  >
>> >  >> I have some meta value like
>> >  >> ```
>> >  >> ---
>> >  >> test: Children's Cognitive Ability
>> >  >> ---
>> >  >> ```
>> >  >>
>> >  >> In my lua filter:
>> >  >> ```
>> >  >> function Meta(meta)
>> >  >>   for k, v in pairs(meta) do
>> >  >>     if k=='test' then
>> >  >>       print(pandoc.utils.stringify(v))
>> >  >>     end
>> >  >>   end
>> >  >> end
>> >  >> ```
>> >  >>
>> >  >> I find it prints
>> >  >> ```
>> >  >> Children’s Cognitive Ability
>> >  >> ```
>> >  >>
>> >  >> I want to keep the single quote as it is. What should I do?
>> >  >>
>> >  >> --
>> >  >> You received this message because you are subscribed to the Google
>> Groups "pandoc-discuss" group.
>> >  >> To unsubscribe from this group and stop receiving emails from it,
>> send an email to pandoc-discuss+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org
>> >  >> To post to this group, send email to
>> pandoc-discuss-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org
>> >  >> To view this discussion on the web visit
>> https://groups.google.com/d/msgid/pandoc-discuss/m2mujn7txr.fsf%40163.com
>> .
>> >  >> For more options, visit https://groups.google.com/d/optout.
>> >
>> >  --
>> >  You received this message because you are subscribed to the Google
>> Groups "pandoc-discuss" group.
>> >  To unsubscribe from this group and stop receiving emails from it, send
>> an email to pandoc-discuss+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org
>> >  To post to this group, send email to pandoc-discuss-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org
>> >  To view this discussion on the web visit
>> https://groups.google.com/d/msgid/pandoc-discuss/m2ftpe7sos.fsf%40163.com
>> .
>> >  For more options, visit https://groups.google.com/d/optout.
>>
>> --
>> You received this message because you are subscribed to the Google Groups
>> "pandoc-discuss" group.
>> To unsubscribe from this group and stop receiving emails from it, send an
>> email to pandoc-discuss+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org
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>> .
>> For more options, visit https://groups.google.com/d/optout.
>>
>

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Re: ' in meta value is converted into ’ in a lua filter

[BPJ]

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The Wikipedia article has a good overview

https://en.m.wikipedia.org/wiki/YAML#Design

Den tors 16 maj 2019 19:13BPJ <melroch-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> skrev:

> Also you shouldn't rely on random secondary sources.
>
> https://yaml.org/refcard.html
>
>
> Den tors 16 maj 2019 19:07BPJ <melroch-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> skrev:
>
>> The double single quote is how you escape a single quote inside a single
>> quoted string in YAML. It makes sense because the single quote itself is
>> the only character which needs to be escaped inside a single quoted string,
>> and it's unambiguous because two quoted strings after each other without
>> anything between is a syntax error in YAML.
>>
>> Den tors 16 maj 2019 10:55jiewuza <jiewuza-9Onoh4P/yGk@public.gmane.org> skrev:
>>
>>>
>>> Thanks.
>>>
>>> The `double single-quote` stuff is consistent to
>>> https://github.com/dotmaster/toYaml/issues/1
>>>
>>> But it is a little complicated.
>>>
>>> BPJ <melroch-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> writes:
>>>
>>> > I usually use a code span or code block in the metadata when I want it
>>> to stringify verbatim with ASCII quotes, dollars, square brackets etc.
>>> > preserved. The stringification function should turn this into a plain
>>> string without any change to the Lua code. Note however that since the
>>> backtick is a
>>> > reserved character in YAML you must enclose the code span in a single
>>> quoted string and double any single quotes inside the string:
>>> >
>>> > ````pandoc-markdown
>>> > ---
>>> > test: '`Children''s cognitive ability`'
>>> > block: |
>>> >   ```
>>> >   Children's cognitive ability.
>>> >   Several.
>>> >   Lines.
>>> >   Of.
>>> >   Text.
>>> >   ```
>>> > ---
>>> > ````
>>> >
>>> > thus in your particular example the backslash escape may be
>>> preferable, but I definitely prefer the code span/block solution when there
>>> are many
>>> > sensitive characters in the string. A lot of backslash escapes affect
>>> readability negatively, especially when you need to escape backslashes
>>> > themselves. For some reason I find `` '`don''t`' `` more readable than
>>> `` don\'t ``, but YMMV.
>>> >
>>> > Den tors 16 maj 2019 09:41jiewuza <jiewuza-9Onoh4P/yGk@public.gmane.org> skrev:
>>> >
>>> >  I checked the manual, `smart` has effect on quotes and dashes.
>>> >  Instead of disabling smart, I have to escape it to minimize the
>>> effect.
>>> >
>>> >  BTW, if it is for the title value
>>> >  ```
>>> >  ---
>>> >  title: Children's Cognitive Ability
>>> >  ---
>>> >  ```
>>> >
>>> >  I get the expected result withouth escaping the quote or disabling
>>> smart:
>>> >
>>> >  ```
>>> >  \title{Children's Cognitive Ability}
>>> >  ```
>>> >
>>> >  Pandoc deals with it differently from a lua filter?
>>> >
>>> >  John MacFarlane <jgm-TVLZxgkOlNX2fBVCVOL8/A@public.gmane.org> writes:
>>> >
>>> >  > YAML metadata fields are interpreted as markdown.
>>> >  >
>>> >  > You can escape it to prevent "smartification":
>>> >  >
>>> >  >     Children\'s Cognitive Ability
>>> >  >
>>> >  > Or disable smartification globally by using `-f
>>> >  > markdown-smart` on the command line.
>>> >  >
>>> >  > jiewuza <jiewuza-9Onoh4P/yGk@public.gmane.org> writes:
>>> >  >
>>> >  >> I have some meta value like
>>> >  >> ```
>>> >  >> ---
>>> >  >> test: Children's Cognitive Ability
>>> >  >> ---
>>> >  >> ```
>>> >  >>
>>> >  >> In my lua filter:
>>> >  >> ```
>>> >  >> function Meta(meta)
>>> >  >>   for k, v in pairs(meta) do
>>> >  >>     if k=='test' then
>>> >  >>       print(pandoc.utils.stringify(v))
>>> >  >>     end
>>> >  >>   end
>>> >  >> end
>>> >  >> ```
>>> >  >>
>>> >  >> I find it prints
>>> >  >> ```
>>> >  >> Children’s Cognitive Ability
>>> >  >> ```
>>> >  >>
>>> >  >> I want to keep the single quote as it is. What should I do?
>>> >  >>
>>> >  >> --
>>> >  >> You received this message because you are subscribed to the Google
>>> Groups "pandoc-discuss" group.
>>> >  >> To unsubscribe from this group and stop receiving emails from it,
>>> send an email to pandoc-discuss+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org
>>> >  >> To post to this group, send email to
>>> pandoc-discuss-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org
>>> >  >> To view this discussion on the web visit
>>> https://groups.google.com/d/msgid/pandoc-discuss/m2mujn7txr.fsf%40163.com
>>> .
>>> >  >> For more options, visit https://groups.google.com/d/optout.
>>> >
>>> >  --
>>> >  You received this message because you are subscribed to the Google
>>> Groups "pandoc-discuss" group.
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>>> >  To view this discussion on the web visit
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>>> .
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>>>
>>> --
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>>> .
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>>>
>>

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Re: ' in meta value is converted into ’ in a lua filter

[John MacFarlane]

No, it's not inconsistent.

Pandoc first uses YAML escaping rules to get a string.
Then, it parses the string as markdown.  It's in this
second phase that the \' has an effect.

jiewuza <jiewuza-9Onoh4P/yGk@public.gmane.org> writes:

> I also find this: https://github.com/dotmaster/toYaml/issues/1
>
> something inconsistent in pandoc YAML and YAML itself.
>
> John MacFarlane <jgm-TVLZxgkOlNX2fBVCVOL8/A@public.gmane.org> writes:
>
>> YAML metadata fields are interpreted as markdown.
>>
>> You can escape it to prevent "smartification":
>>
>>     Children\'s Cognitive Ability
>>
>> Or disable smartification globally by using `-f
>> markdown-smart` on the command line.
>>
>> jiewuza <jiewuza-9Onoh4P/yGk@public.gmane.org> writes:
>>
>>> I have some meta value like
>>> ```
>>> ---
>>> test: Children's Cognitive Ability
>>> ---
>>> ```
>>>
>>> In my lua filter:
>>> ```
>>> function Meta(meta)
>>>   for k, v in pairs(meta) do
>>>     if k=='test' then
>>>       print(pandoc.utils.stringify(v))
>>>     end
>>>   end
>>> end
>>> ```
>>>
>>> I find it prints
>>> ```
>>> Children’s Cognitive Ability
>>> ```
>>>
>>> I want to keep the single quote as it is. What should I do?
>>>
>>> -- 
>>> You received this message because you are subscribed to the Google Groups "pandoc-discuss" group.
>>> To unsubscribe from this group and stop receiving emails from it, send an email to pandoc-discuss+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org
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>>> For more options, visit https://groups.google.com/d/optout.
>
> -- 
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Re: ' in meta value is converted into ’ in a lua filter

[jiewuza]

OK, I see.

So everything in YAML is read as markdown.

I find there is a pandoc.read() at https://pandoc.org/lua-filters.html

Can I use it to convert markdown to text?

John MacFarlane <jgm-TVLZxgkOlNX2fBVCVOL8/A@public.gmane.org> writes:

> No, it's not inconsistent.
>
> Pandoc first uses YAML escaping rules to get a string.
> Then, it parses the string as markdown.  It's in this
> second phase that the \' has an effect.
>
> jiewuza <jiewuza-9Onoh4P/yGk@public.gmane.org> writes:
>
>> I also find this: https://github.com/dotmaster/toYaml/issues/1
>>
>> something inconsistent in pandoc YAML and YAML itself.
>>
>> John MacFarlane <jgm-TVLZxgkOlNX2fBVCVOL8/A@public.gmane.org> writes:
>>
>>> YAML metadata fields are interpreted as markdown.
>>>
>>> You can escape it to prevent "smartification":
>>>
>>>     Children\'s Cognitive Ability
>>>
>>> Or disable smartification globally by using `-f
>>> markdown-smart` on the command line.
>>>
>>> jiewuza <jiewuza-9Onoh4P/yGk@public.gmane.org> writes:
>>>
>>>> I have some meta value like
>>>> ```
>>>> ---
>>>> test: Children's Cognitive Ability
>>>> ---
>>>> ```
>>>>
>>>> In my lua filter:
>>>> ```
>>>> function Meta(meta)
>>>>   for k, v in pairs(meta) do
>>>>     if k=='test' then
>>>>       print(pandoc.utils.stringify(v))
>>>>     end
>>>>   end
>>>> end
>>>> ```
>>>>
>>>> I find it prints
>>>> ```
>>>> Children’s Cognitive Ability
>>>> ```
>>>>
>>>> I want to keep the single quote as it is. What should I do?
>>>>
>>>> -- 
>>>> You received this message because you are subscribed to the Google Groups "pandoc-discuss" group.
>>>> To unsubscribe from this group and stop receiving emails from it, send an email to pandoc-discuss+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org
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>>>> For more options, visit https://groups.google.com/d/optout.
>>
>> -- 
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>> email to
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Re: ' in meta value is converted into ’ in a lua filter

[jiewuza]

Yes, you are right.

And thank you.

BPJ <melroch-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> writes:

> Also you shouldn't rely on random secondary sources.
>
> https://yaml.org/refcard.html
>
> Den tors 16 maj 2019 19:07BPJ <melroch-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> skrev:
>
>  The double single quote is how you escape a single quote inside a single quoted string in YAML. It makes sense because the single quote itself
>  is the only character which needs to be escaped inside a single quoted string, and it's unambiguous because two quoted strings after each other
>  without anything between is a syntax error in YAML.
>
>  Den tors 16 maj 2019 10:55jiewuza <jiewuza-9Onoh4P/yGk@public.gmane.org> skrev:
>
>  Thanks.
>
>  The `double single-quote` stuff is consistent to https://github.com/dotmaster/toYaml/issues/1
>
>  But it is a little complicated.
>
>  BPJ <melroch-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> writes:
>
>  > I usually use a code span or code block in the metadata when I want it to stringify verbatim with ASCII quotes, dollars, square brackets
>  etc.
>  > preserved. The stringification function should turn this into a plain string without any change to the Lua code. Note however that since the
>  backtick is a
>  > reserved character in YAML you must enclose the code span in a single quoted string and double any single quotes inside the string:
>  >
>  > ````pandoc-markdown
>  > ---
>  > test: '`Children''s cognitive ability`'
>  > block: |
>  >   ```
>  >   Children's cognitive ability.
>  >   Several.
>  >   Lines.
>  >   Of.
>  >   Text.
>  >   ```
>  > ---
>  > ````
>  >
>  > thus in your particular example the backslash escape may be preferable, but I definitely prefer the code span/block solution when there
>  are many
>  > sensitive characters in the string. A lot of backslash escapes affect readability negatively, especially when you need to escape
>  backslashes
>  > themselves. For some reason I find `` '`don''t`' `` more readable than `` don\'t ``, but YMMV.
>  >
>  > Den tors 16 maj 2019 09:41jiewuza <jiewuza-9Onoh4P/yGk@public.gmane.org> skrev:
>  >
>  >  I checked the manual, `smart` has effect on quotes and dashes.
>  >  Instead of disabling smart, I have to escape it to minimize the effect.
>  >
>  >  BTW, if it is for the title value
>  >  ```
>  >  ---
>  >  title: Children's Cognitive Ability
>  >  ---
>  >  ```
>  >
>  >  I get the expected result withouth escaping the quote or disabling smart:
>  >
>  >  ```
>  >  \title{Children's Cognitive Ability}
>  >  ```
>  >
>  >  Pandoc deals with it differently from a lua filter?
>  >
>  >  John MacFarlane <jgm-TVLZxgkOlNX2fBVCVOL8/A@public.gmane.org> writes:
>  >
>  >  > YAML metadata fields are interpreted as markdown.
>  >  >
>  >  > You can escape it to prevent "smartification":
>  >  >
>  >  >     Children\'s Cognitive Ability
>  >  >
>  >  > Or disable smartification globally by using `-f
>  >  > markdown-smart` on the command line.
>  >  >
>  >  > jiewuza <jiewuza-9Onoh4P/yGk@public.gmane.org> writes:
>  >  >
>  >  >> I have some meta value like
>  >  >> ```
>  >  >> ---
>  >  >> test: Children's Cognitive Ability
>  >  >> ---
>  >  >> ```
>  >  >>
>  >  >> In my lua filter:
>  >  >> ```
>  >  >> function Meta(meta)
>  >  >>   for k, v in pairs(meta) do
>  >  >>     if k=='test' then
>  >  >>       print(pandoc.utils.stringify(v))
>  >  >>     end
>  >  >>   end
>  >  >> end
>  >  >> ```
>  >  >>
>  >  >> I find it prints
>  >  >> ```
>  >  >> Children’s Cognitive Ability
>  >  >> ```
>  >  >>
>  >  >> I want to keep the single quote as it is. What should I do?
>  >  >>
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Re: ' in meta value is converted into ’ in a lua filter

[John MacFarlane]

jiewuza <jiewuza-9Onoh4P/yGk@public.gmane.org> writes:

> OK, I see.
>
> So everything in YAML is read as markdown.
>
> I find there is a pandoc.read() at https://pandoc.org/lua-filters.html
>
> Can I use it to convert markdown to text?

pandoc.read will convert markdown text to a pandoc
document.  you can then use pandoc.utils.stringify to
convert this document to plain text, if that's what
you're looking for.