Re: Revert "Many Pages: Remove references to C89"

[Alejandro Colomar <alx.manpages@gmail.com>]

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On 3/15/23 13:53, Alejandro Colomar wrote:
> Hi Oskari,
> 
> On 3/15/23 13:30, Alejandro Colomar wrote:
>> stdc89()
>> {
>>     grep "[[:alpha:]] \**\b$1([[:alnum:]*,. ]*);" /path/to/c89-draft.txt \
>>     | sort \
>>     | uniq;
>> }
> 
> I found a bug.  I was missing '_' in identifier names.  So it didn't
> match memcpy(3), which uses size_t.  Also, I found some spurious match,
> so added a '$' anchor after the ';'.
> 
> 
> stdc89()
> {
>     grep "[[:alpha:]] \**\b$1([[:alnum:]*,._ ]*);" /path/to/c89-draft.txt \
>     | sort \
>     | uniq;
> }
> 
> 
> This function finds 136 declarations in C89.  I'm not sure if that's
> all of them.  Is anyone missing any?

Actually, that was missing a few (multi-line declarations, signal(3),
which is quite weird, and asm()).  The following seems to be complete
(per the count of ';'):

$ cat stdc89 
#!/bin/sh

sed -n '/A.3 LIBRARY SUMMARY/,$p' <c89-draft.txt \
| pcregrep -M "(?s)\b$1 *\([[:alnum:]*,._\s\(\)-]*\);$";

$ ./stdc89 '[[:alpha:]][[:alnum:]_]+' \
  | grep ';' \
  | wc -l
146
$ sed -n '/A.3 LIBRARY SUMMARY/,$p' <c89-draft.txt \
  | grep '         .*);' \
  | wc -l
146


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