John DeSoi wrote:
>
> On May 31, 2006, at 10:40 AM, John DeSoi wrote:
>
>> Yes! Thanks very much -- I looked at that page several times and
>> missed regexp_replace.
>
>
> Ok, now I know why I missed it. regexp_replace is only in PostgreSQL 8.1
> and later. I'm stuck with 8.0 for hosting at the moment.
>
> I'm sure it is not very efficient, but the plpgsql function below does
> the same job for PostgreSQL versions prior to 8.1.
>
Command Prompt supports 8.1 for PostgreSQL if you need a new environment.
Sincerely,
Joshua D. Drake
> Thanks for the help,
>
>
> John DeSoi, Ph.D.
> http://pgedit.com/
> Power Tools for PostgreSQL
>
>
>
> create or replace function lossy_latin(p_text text)
> returns text as $$
> declare
> t text;
> res text := '';
> ch text := substring(p_text from '[^\\u0000-\\u00FF]');
> pos integer;
> begin
> if ch is null then
> return p_text;
> else
> t := p_text;
> loop
> pos := strpos(t, ch);
> res := res || substr(t, 1, pos - 1) || '?';
> t := substr(t, pos + 1);
> ch := substring(t from '[^\\u0000-\\u00FF]');
> if ch is null then
> res := res || t;
> exit;
> end if;
> end loop;
> return res;
> end if;
> end;
> $$ language plpgsql immutable;
>
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