Re: HTML Message with Embedded HTML Files

Giganews Newsgroups
Subject: Re: HTML Message with Embedded HTML Files
Posted by:  Kevin G. McCoy (atozedne…
Date: Fri, 28 Jan 2011

On 1/28/2011 1:12 PM, Tom Hahn wrote:
> Delphi 7, Indy
> I wish to create an HTML message and embed (not attach) several HTML files
> within that message. I have never created a message that was not just plain
> text, so I am not sure how to accomplish this. An example would be
> appreciated since I don't even know how to start.
Write a template parser class that can replace macros in a text file
with strings.  Read in a base HTML file (template) and then replace all
the macro tags with the appropriate strings. The strings can be HTML -
or not. Pass the modified template strings to SMTP.


You load all the text file lines of the template into a TStringList,
then step through the lines looking for known macros.  I use "*Macro*"
in the template file because you can stuff *xxx* almost anywhere in an
HTML file and it won't crash the HTML editor.  The Kompozer HTML editor
works for simple template editing, and it is free.

Anyway, when you find a matching macro tag pattern on a line, note the
location, delete the macro tag and replace it with the desired string.
Move on to the next macro tag or the next line of template.

I use a TList derived class to hold all my macro tags and replacement
values in dynamically created nodes.

This works well with simple mail-merge and dynamic HTML insertion. I use
this technique for membership mailing lists, automated email
notification, and so on.

If you want to allow the user to create their own "template" then use a
component like ProfGrid's TProfDHTMLEdit2.  I don't know if this
component is compatible with D7 though.

Best regards,

Kevin G. McCoy


In response to

HTML Message with Embedded HTML Files posted by Tom Hahn on Fri, 28 Jan 2011