[Tex/LaTex] \href line break issue

hyperrefline-breaking

I'm running into trouble using \href with a long link diskription which is then broken over two lines. The issue is the link box, which obviously cannot be properly broken and then disappears, as can be seen on the following example:

\documentclass{scrartcl}

\usepackage[breaklinks=true]{hyperref}
\usepackage{breakurl}

\begin{document}

\begin{minipage}{0.3\linewidth}
  \href{url}{Very long link which should be broken}

  \url{Very/long/link/which/should/be/broken}
\end{minipage}

\end{document}

The output:

As you can see, breakurl package creates two frames one for each line, whereas href command controlled by hyperref package creates only a small frame between the lines. In combination mit colores links without frames, it is almost impossible to find the link by mouse…

Update: This issue occures using latex + dvipdf chain only, pdflatex works fine. Ommiting brakurl package for latex + dvipdf results in url not broken:

 \documentclass{scrartcl}

\usepackage[breaklinks=true]{hyperref}
% \usepackage{breakurl}

\begin{document}

\framebox{
  \begin{minipage}{0.3\linewidth}
    \href{url}{Very long link which should be broken}

    \url{Very/long/link/which/should/be/broken}
  \end{minipage}
}

\end{document}

Output:

Best Answer

For me your code gives a correct broken url. Probably you are just using a compiler that conflicts with this setup. As @Cupora states latex+dvipdf seem to refuse making the right links.

I've compiled with pdflatex and lualatex and they both show the following output:

xelatex seems to fail using breakurl, but that may be an issue with my setup.

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[Tex/LaTex] Long URL extends into margin – it breaks at underscore, but too late

enter image description here

\documentclass[hidelinks,12pt]{amsbook}
\RequirePackage[bookmarks, bookmarksopen=true, plainpages=false, pdfpagelabels, pdfpagelayout=SinglePage, breaklinks = true]{hyperref}

\begin{document}
\chapter{Troubleshooting long URLs}

\section{Test 1}    
A complete list of participants and presentations can be found on the conference web site: \href
{http://ruraro.rintint.edu/events/shipshops/index.php/Perplexity_and_Action_-_an_Interdisciplinary_Approach_to_Rationale_Synchro_Theory}%
{\texttt{http://ruraro.rintint.edu/events/ship\linebreak shops/index.php/Perplexity\string_and\string_Action\string_-\string_an\string_Interdisciplina\linebreak ry\string_Approach\string_to\string_Rationale\string_Synchro\string_Theory}}

\end{document}

[Tex/LaTex] \hyperref within included pdfs

Any interactive elements, such as links, embedded multimedia, PDF Layers, are stripped off while embedding a PDF by means of the usual commands from the graphicx and pdfpages packages.

There is an experimental package on CTAN, ↗pax, which attempts to re-create such elements using an external Java programme. But the project seems to be discontinued.

Currently, re-inserting interactive elements require a tedious, manual procedure, which can be simplified a bit by package onimage, introduced ↗here. It can be downloaded as onimage.dtx↗here. Run pdflatex twice on it to get onimage.sty and the documentation onimage.pdf.

onimage was designed to facilitate annotating embedded image files. Optionally it can show a grid of helper lines that greatly simplifies finding the link rectangle coordinates.

For convenience, we define \linkRect(<lowerleft>)(<upper right>){...} which can be used inside a tikzonimage or tikzpicture environment to create a link rectangle between (<lowerleft>) and (<upper right>), e. g. as

\linkRect(llx,lly)(urx,ury) {\href{URL}{~}};

Use ~ as a placeholder for the link text.

The Perl-Script extractURIs.pl listed below extracts all URI (i. e. external) links from a given uncompressed PDF and writes readily formatted

\linkRect(llx,lly)(urx,ury) {\href{URL}{~}};

commands to the terminal. For uncompressing, use pdftk commandline tool:

pdftk input.pdf output - uncompress | extractURIs.pl

\documentclass{article}

\usepackage{graphicx}
\usepackage{tikz}
\usepackage{hyperref}
\usepackage{onimage}

% use `~' as placeholder for the link text
% \linkRect(llx,lly)(urx,ury) {\href{URL}{~}};
\def\linkRect(#1)(#2){
  \coordinate (ll) at (#1); \coordinate (ur) at (#2);\def~{\tikz \useasboundingbox (ll) rectangle (ur);}
  \node [anchor=south west, inner sep=0] at (ll)
}

\begin{document}

  \begin{tikzonimage}[width=5cm]{example-image-a}[tsx/show help lines]
    \linkRect(0.35,0.25)(0.65,0.75) {\href{https://www.google.de/search?q=onimage.dtx&ie=utf-8&oe=utf-8&client=firefox-b&gfe_rd=cr&dcr=0&ei=6lW6Wq_yEt6CgAfZq5mgDA}{~}};
  \end{tikzonimage}

\end{document}

Perl scipt extractURIs.pl:

#!/usr/bin/perl -w

@linkRect=();
@linkUri=();
$isLink=0;
$isUri=0;

while(<>){
  if (/\/MediaBox\s+\[([\d\.\s]+\d)\]/) {
    @mediaBox=split /\s+/, $1;
  }
  elsif(/\/Subtype\s*\/Link/) {$isLink=1;}
  elsif(/\/Rect\s+\[([\d\.\s]+\d)\]/) {
    $rect=$1;
  }
  elsif(/\/URI\s+\((.*)\)\s*$/) {
    $uri=$1;
    $isUri=1;
  }
  elsif(/endobj/) {
    if($isUri && $isLink) {
      push @linkUri, $uri;
      push @linkRect, $rect;
    }
    $isUri=0;
    $isLink=0;
  }
}

$width=$mediaBox[2]-$mediaBox[0];
$height=$mediaBox[3]-$mediaBox[1];

for($i=0; $i<@linkUri; $i++) {
  ($llx,$lly,$urx,$ury) = split /\s+/, $linkRect[$i];
  $llx=($llx-$mediaBox[0])/$width;
  $urx=($urx-$mediaBox[0])/$width;
  $lly=($lly-$mediaBox[1])/$height;
  $ury=($ury-$mediaBox[1])/$height;

  print "\\linkRect($llx,$lly)($urx,$ury) {\\href{$linkUri[$i]}{~}};\n";
}

Best Answer

Related Solutions

[Tex/LaTex] Long URL extends into margin – it breaks at underscore, but too late

[Tex/LaTex] \hyperref within included pdfs

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