RE: Fault with initcap

This was reported in PG 8.1.4 15 years ago - https://pgsql-bugs.postgresql.narkive.com/R7HmTKef/bug-2579-initcap-should-not-capitalize-letter-after-apostrophe

From: Metin Ulusinan <metin(dot)ulusinan(at)ssicilian(dot)net>
Sent: Wednesday, October 13, 2021 5:39 AM
To: Shaozhong SHI <shishaozhong(at)gmail(dot)com>
Cc: pgsql-sql <pgsql-sql(at)lists(dot)postgresql(dot)org>
Subject: Re: Fault with initcap

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Hi,
Yes, this can be adaptable, and i did simple version of this.
It just split text words with find spaces, capitalise each
pieces(word) and merge together again.
This is a quick and simple work. You can develop over it about your needs.

Try that and tell us about result.

CREATE OR REPLACE FUNCTION initcap2(text)
RETURNS text
LANGUAGE plpgsql
AS $function$
DECLARE
sentence TEXT := '';
word_array TEXT[];
word TEXT;
word_out TEXT;
BEGIN
sentence := $1;

IF sentence is NULL THEN
RETURN NULL;
END IF;

word_array := regexp_split_to_array($1, E'\\s+');
FOREACH word IN ARRAY word_array
LOOP
word_out := upper(left(word, 1)) || lower(substring(word, 2));
sentence := regexp_replace(sentence, word, word_out);
END LOOP;

RETURN trim(sentence);
END;
$function$
;

On Wed, Oct 13, 2021 at 11:48 AM Shaozhong SHI <shishaozhong(at)gmail(dot)com<mailto:shishaozhong(at)gmail(dot)com>> wrote:

On Wed, 13 Oct 2021 at 07:33, Metin Ulusinan <metin(dot)ulusinan(at)ssicilian(dot)net<mailto:metin(dot)ulusinan(at)ssicilian(dot)net>> wrote:
I tried both on PostgreSQL 11.13 and yes "Sainsbury's bank" 's "S" is buggy, but notemachine is not.

Will anyone try @ 14?

n

s

version

Notemachine

Sainsbury'S Bank

PostgreSQL 11.13 (Debian 11.13-0+deb10u1) on x86_64-pc-linux-gnu, compiled by gcc (Debian 8.3.0-6) 8.3.0, 64-bit

Hello, Metin Ulusinan,

I can confirm that you pin-out the issue.

There is a INITCAP2. Alternative function to PostgreSQL builtin initcap(text) with support for accented words. · GitHub<https://urldefense.com/v3/__https:/gist.github.com/pv8/8291531__;!!Lf_9VycLqA!yapR_3tOx6q4nbC3ZDtCTzp8h2LwdrDNJWxNqPOj8WHb5IIUeDb_3WXMt8MOpJOJ$>

Can this be adapted to capitalise the first letter of each work in a string?

Regards,

David