I found a way to do this using regular expressions. Found this on another website
CREATE OR REPLACE FUNCTION strip_tags(TEXT) RETURNS TEXT AS $$ 2 SELECT regexp_replace(regexp_replace($1, E'(?x)<[^>]*?(\s alt \s* = \s* ([\'"]) ([^>]*?) \2) [^>]*? >', E'\3'), E'(?x)(< [^>]*? >)', '', 'g') 3$$ LANGUAGE SQL; From: pgsql-sql-ow...@postgresql.org [mailto:pgsql-sql-ow...@postgresql.org] On Behalf Of Ozer, Pam Sent: Wednesday, February 23, 2011 3:41 PM To: pgsql-sql@postgresql.org Subject: [SQL] Function To Strip HTML I have the following function that I used in MSSQL. I would like to create the same function in PostgreSql. I think I am a bit confused on how to create and set variables in PostgreSql. Can someone give me a place to start to create something like this? Thanks Pam SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO CREATE FUNCTION [dbo].[udf_StripHTML] (@HTMLText VARCHAR(MAX)) RETURNS VARCHAR(MAX) AS BEGIN DECLARE @Start INT DECLARE @End INT DECLARE @Length INT SET @Start = CHARINDEX('<',@HTMLText) SET @End = CHARINDEX('>',@HTMLText,CHARINDEX('<',@HTMLText)) SET @Length = (@End - @Start) + 1 WHILE @Start > 0 AND @End > 0 AND @Length > 0 BEGIN SET @HTMLText = STUFF(@HTMLText,@Start,@Length,'') SET @Start = CHARINDEX('<',@HTMLText) SET @End = CHARINDEX('>',@HTMLText,CHARINDEX('<',@HTMLText)) SET @Length = (@End - @Start) + 1 END RETURN LTRIM(RTRIM(@HTMLText)) END GO
