Re: [Lynx-dev] Issues with -dont_wrap_pre and -nomargins

[Thomas Dickey]

On Tue, Oct 06, 2009 at 03:58:49PM -0400, Claus Strommer wrote:
> It seems that I spoke too soon.  Further reviews of the output
> reveal that there are still instances of missing whitespace.  I can
> reduce the number of hits by increasing the --width option, and am
> trying to cook together something to pad the 'splits' with a
> whitespace (since i don't have to worry about terminal width).
> 
> 
> 
> On a different note:  I am trying to eliminate image links and image
> alt-text altogether from my output:
> 
> For the former I've tried using the --image_links- option.  Alas, I
> see no change.  If I explicitly enable image links via the --
> image_links option I actually get TWO [image.jpg] links in the dump
> output;  I don't know if that is a bug or there by design.

I'd suppose you would disable the option rather than enable it.
Most of the logic for this is scattered around src/HTML.c, based
on where the "clickable_images" variable is used.
There's also an alt_string variable in that file which may be related
to what you're working on (but first ensure that you're using --image_links=0).
 
> I have not found an option to exclude alt-text; I assume that it is
> not built in, and don't expect a toggle to be added for it any time
> soon.  I would only ask if anyone familiar with the code could point
> me to the appropriate file where I could perhaps disable the output
> generated for images (or replace it with an empty string).
> 
> 
> On 2009-09-16, at 11:53 AM, Claus Strommer wrote:
> 
> >Just a quick followup:
> >
> >Changing the definitions in LYOptions.c does not affect the output.
> >However, changing lines 469 and 485 in DefaultStyle.c from
> >             q->rightIndent = 0;
> >to
> >             q->rightIndent = 1;
> >
> >does the trick.
> >
> >
> >Thanks for the help!
> >
> >
> >On 2009-09-16, at 4:59 AM, Thomas Dickey wrote:
> >
> >----8<--snip--8<----
> >
> >>>
> >>>So my question is: Is there anything I can do to work around
> >>>this?  I would
> >>
> >>...other than fixing the bug - perhaps not.  (I'm working on
> >>xterm and mawk at the moment, intending to go back to lynx
> >>next...).
> >>
> >>Just reading the code: It looks as if -nomargins goes to the
> >>no_margins variable, and _that_ is used in only a few places:
> >>
> >>DefaultStyle.c:466:         if (no_margins) {
> >>DefaultStyle.c:482:         if (no_margins) {
> >>LYGlobalDefs.h:394:    extern BOOLEAN no_margins;
> >>LYMain.c:393:BOOLEAN no_margins = FALSE;
> >>LYMain.c:3622:      "nomargins",        4|SET_ARG,
> >>no_margins,
> >>LYOptions.c:35:#define MARGIN_STR (no_margins ? "" : "&nbsp;&nbsp;")
> >>LYOptions.c:36:#define MARGIN_LEN (no_margins ?  0 : 2)
> >>LYrcFile.h:159:#define RC_NO_MARGINS                   "no_margins"
> >>LYReadCFG.c:1494:     PARSE_SET(RC_NO_MARGINS,           no_margins),
> >>
> >>The uses in DefaultStyle.c and LYOptions.c are simple to change
> >>and see if the bug's behavior changes predictably.  For
> >>instance, making -no_margins do a single character rather than
> >>none might make it usable for your script.
> >>
> >>The derived variables are used in GridText.c's split_line()
> >>function, which is (complicated) where the boundary check is
> >>most likely off.
> >>It's complicated, since there are long expressions such as
> >>
> >>      spare = WRAP_COLS(text)
> >>          - (int) style->rightIndent
> >>          - indent
> >>          + ctrl_chars_on_previous_line
> >>          - LYstrExtent2(previous->data, previous->size);
> >>
> >>But that's the area where the fix would probably be made -
> >>split_line.
> >>
> >>>very much like to keep using these two options, as it is
> >>>important to me to be able to distinguish between lines and
> >>>paragraphs.   I am even willing to use other tools, if you can
> >>>suggest any - but as far as I've seen, lynx is the only one
> >>>which gives the desired options.  Also, I'd like to stay away
> >>>from the -width option (it does not allow me to specify
> >>>infinite width, AND it breaks with tables - the attached
> >>>b.html, for example).
> >>>
> >>>
> >>
> >>-- 
> >>Thomas E. Dickey
> >>http://invisible-island.net
> >>ftp://invisible-island.net
> >>
> >>
> >
> >
> >
> 
> --
> Claus W. Strommer
> University of Waterloo, David R. Cheriton School of Computer Science
> DC3546
> 
> ruby -le'32.times{|y|print" "*(31-y),(0..y).map{|x|~y&x>0?" .":" A"}}'
> 
> 
> 
> 
> 
> 
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-- 
Thomas E. Dickey <address@hidden>
http://invisible-island.net
ftp://invisible-island.net

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