Re: Displaying images for html output

[Christopher Dimech]

When using the following, the imape is displayed.

@set dirhtml ../../Ideogr/Ch03b--Chmed
@image{@value{dirhtml}/igc03--01--Sicl--CircAmRg,8cm,8cm,,png}

However, one gets the following warning

Ch03a--Chmed--html.texi:309: warning: @image file 
`../../Ideogr/Ch03b--Chmed/igc03--01--Sicl--CircAmRg'
(for HTML) not found, using 
`../../Ideogr/Ch03b--Chmed/igc03--01--Sicl--CircAmRg.png'

----------------------------------------------

But suppose one changes the command to include .png as below

@set dirhtml ../../Ideogr/Ch03b--Chmed
@image{@value{dirhtml}/igc03--01--Sicl--CircAmRg,8cm,8cm,,.png}

One will get

Ch03a--Chmed--html.texi:309: warning: @image file 
`../../Ideogr/Ch03b--Chmed/igc03--01--Sicl--CircAmRg'
(for HTML) not found, using 
`../../Ideogr/Ch03b--Chmed/igc03--01--Sicl--CircAmRg..png'

And the image is not displayed.

> Sent: Sunday, November 15, 2020 at 7:15 PM
> From: "Christopher Dimech" <dimech@gmx.com>
> To: "Gavin Smith" <gavinsmith0123@gmail.com>
> Cc: "help-texinfo gnu" <help-texinfo@gnu.org>
> Subject: Re: Displaying images for html output
>
>
> > Sent: Sunday, November 15, 2020 at 6:42 PM
> > From: "Gavin Smith" <gavinsmith0123@gmail.com>
> > To: "Christopher Dimech" <dimech@gmx.com>
> > Cc: "help-texinfo gnu" <help-texinfo@gnu.org>
> > Subject: Re: Displaying images for html output
> >
> > On Sun, Nov 15, 2020 at 05:12:13PM +0100, Christopher Dimech wrote:
> > >
> > > It is the fifth and I still get the Alt Text Attribute.
> > >
> > > The output was
> > >
> > > ../Ideogr/Ch03b--Chmed/igc03--01--Sicl--CircAmRg
> > >
> > > If I put
> > >
> > > @image{../Ideogr/Ch03b--Chmed/igc03--01--Sicl--CircAmRg,8cm,8cm,AltText,.png}
> > >
> > > I get AltText
> > >
> > > But now I have understood the problem,
> > >
> > > Although the file exists at 
> > > ../Ideogr/Ch03b--Chmed/igc03--01--Sicl--CircAmRg.png
> > > because the html index file resides in a subdirectory generated by 
> > > texi2any, the
> > > code got to be changed to
> > >
> > > @image{../../Ideogr/Ch03b--Chmed/igc03--01--Sicl--CircAmRg,8cm,8cm,AltText,png}
> > >
> > > Furthermore, you cannot put ".png" as the fifth argument because for html 
> > > that will
> > > fail.  You have to put "png", without the period dot.
> >
> > This would be a bug if it is true.  The manual says to include the period:
> >
> >    * For Info and HTML output, 'makeinfo' uses the optional fifth
> >      argument EXTENSION to '@image' for the filename extension, if it is
> >      specified and the file is found.  Any leading period should be
> >      included in EXTENSION.  For example:
> >
> >           @image{foo,,,,.xpm}
>
> So we should keep the leading period and fix the bug for the html case.
>
>