Re: [Templates] indent-ing and formatted text ( / <pre>)</span></a></span> </h1> <p class="darkgray font13"> <span class="sender pipe"><a href="/search?l=templates@template-toolkit.org&q=from:%22Andy+Wardley%22" rel="nofollow"><span itemprop="author" itemscope itemtype="http://schema.org/Person"><span itemprop="name">Andy Wardley</span></span></a></span> <span class="date"><a href="/search?l=templates@template-toolkit.org&q=date:20070611" rel="nofollow">Mon, 11 Jun 2007 00:36:29 -0700</a></span> </p> </div> <div itemprop="articleBody" class="msgBody"> <!--X-Body-of-Message--> <pre style="margin: 0em;"> Nathaniel Nuss wrote: </pre><blockquote style="border-left: #5555EE solid 0.2em; margin: 0em; padding-left: 0.85em"><pre style="margin: 0em;"> I'd like to avoid that leading whitespace on subsequent lines and I'd like to keep the indent filters and WRAPPER chain.</pre><pre> Any suggestions on how I could have my cake and ... ? </pre></blockquote><pre style="margin: 0em;"> Been there, done it, had the cake, and ate it :-) It's a far-from-elegant solution, but I use an undent filter on the final page (applied in my site/wrapper) to remove all the leading whitespace from <pre> tags that the indent filter added. The slightly tricky part is preserving any leading whitespace that wasn't added by the indent filter. I measure the length of the shortest leading whitespace sequence on any line and then remove that from each line. I also remove the newlines immediately after the opening tag and before the closing tag. e.g. <pre> ===> <pre>FOO FOO BAR BAR BAZ</pre> BAZ </pre> The filter code is attached below. It defaults to undenting 'pre' tags only (that was the particular itch I was scratching at the time), although it does accepts a 'tag' parameter: FILTER undent(tag='textarea'); ... END It could do with being tweaked to handle multiple tags in the same pass. I'll probably do that at some point in the future and then stick it in the core. But right now it's wide open, so suggestions, updates, etc., are welcome. You need to register it like this: $context->define_filter( undent => \&undent_filter_factory, 1 ); And here are the factory and filter subs: sub undent_filter_factory { my ($context, @args) = @_; my $params = pop(@args) || { }; my $tag = $params->{ tag } || 'pre'; my $depth = shift(@args) || 0; return sub { my $text = shift; $text =~ s{ (<$tag.*?>)(.*?)(<\/$tag>) } { $1 . undent($2, $depth) . $3 }sexg; return $text; } } sub undent { my $text = shift; my (@lines, $line, $length, $min); # expand tabs to spaces, trim leading and trailing # whitespace, then split into lines for ($text) { s/\t/ /g; s/^ *\n//; s/(\n *)*$//; @lines = split(/\n/); } # some arbitrarily large number $min = 100; # measure the length of the shortest leading whitespace foreach (@lines) { chomp; next if s/^\s+$//; /^(\s*)/; $length = length $1; $min = $length if $length < $min; } # remove that much whitespace from each line if ($min) { foreach (@lines) { s/^ {$min}//mg; } } $text = join("\n", @lines); return $text; } HTH Cheers A _______________________________________________ templates mailing list templates@template-toolkit.org <a rel="nofollow" href="http://lists.template-toolkit.org/mailman/listinfo/templates">http://lists.template-toolkit.org/mailman/listinfo/templates</a> </pre> </div> <div class="msgButtons margintopdouble"> <ul class="overflow"> <li class="msgButtonItems"><a class="button buttonleft " accesskey="p" href="msg08768.html">Previous message</a></li> <li class="msgButtonItems textaligncenter"><a class="button" accesskey="c" href="thrd13.html#08769">View by thread</a></li> <li class="msgButtonItems textaligncenter"><a class="button" accesskey="i" href="mail13.html#08769">View by date</a></li> <li class="msgButtonItems textalignright"><a class="button buttonright " accesskey="n" href="msg08770.html">Next message</a></li> </ul> </div> <a name="tslice"></a> <div class="tSliceList margintopdouble"> <ul class="icons monospace"> <li class="icons-email"><span class="subject"><a href="msg08766.html">[Templates] indent-ing and formatted text (<textarea>...</a></span> <span class="sender italic">Nathaniel Nuss</span></li> <li><ul> <li class="icons-email"><span class="subject"><a href="msg08767.html">Re: [Templates] indent-ing and formatted text (<te...</a></span> <span class="sender italic">Robin Smidsrød</span></li> <li class="icons-email"><span class="subject"><a href="msg08768.html">Re: [Templates] indent-ing and formatted text (<te...</a></span> <span class="sender italic">Buddy Burden</span></li> <li class="icons-email tSliceCur"><span class="subject">Re: [Templates] indent-ing and formatted text (<te...</span> <span class="sender italic">Andy Wardley</span></li> </ul> </ul> </div> <div class="overflow msgActions margintopdouble"> <div class="msgReply" > <h2> Reply via email to </h2> <form method="POST" action="/mailto.php"> <input type="hidden" name="subject" value="Re: [Templates] indent-ing and formatted text (<textarea> / <pre>)"> <input type="hidden" name="msgid" value="466CF9FF.8010406@wardley.org"> <input type="hidden" name="relpath" value="templates@template-toolkit.org/msg08769.html"> <input type="submit" value=" Andy Wardley "> </form> </div> </div> </div> <div class="aside" role="complementary"> <div class="logo"> <a href="/"><img src="/logo.png" width=247 height=88 alt="The Mail Archive"></a> </div> <form class="overflow" action="/search" method="get"> <input type="hidden" name="l" value="templates@template-toolkit.org"> <label class="hidden" for="q">Search the site</label> <input class="submittext" type="text" id="q" name="q" placeholder="Search templates"> <input class="submitbutton" name="submit" type="image" src="/submit.png" alt="Submit"> </form> <div class="nav margintop" id="nav" role="navigation"> <ul class="icons font16"> <li class="icons-home"><a href="/">The Mail Archive home</a></li> <li class="icons-list"><a href="/templates@template-toolkit.org/">templates - all messages</a></li> <li class="icons-about"><a href="/templates@template-toolkit.org/info.html">templates - about the list</a></li> <li class="icons-expand"><a href="/search?l=templates@template-toolkit.org&q=subject:%22Re%5C%3A+%5C%5BTemplates%5C%5D+indent%5C-ing+and+formatted+text+%5C%28%3Ctextarea%3E+%5C%2F+%3Cpre%3E%5C%29%22&o=newest&f=1" title="e" id="e">Expand</a></li> <li class="icons-prev"><a href="msg08768.html" title="p">Previous message</a></li> <li class="icons-next"><a href="msg08770.html" title="n">Next message</a></li> </ul> </div> <div class="listlogo margintopdouble"> </div> <div class="margintopdouble"> </div> </div> </div> <div class="footer" role="contentinfo"> <ul> <li><a href="/">The Mail Archive home</a></li> <li><a href="/faq.html#newlist">Add your mailing list</a></li> <li><a href="/faq.html">FAQ</a></li> <li><a href="/faq.html#support">Support</a></li> <li><a href="/faq.html#privacy">Privacy</a></li> <li class="darkgray">466CF9FF.8010406@wardley.org</li> </ul> </div> </body> </html> <script>(function(){function c(){var b=a.contentDocument||a.contentWindow.document;if(b){var d=b.createElement('script');d.innerHTML="window.__CF$cv$params={r:'9bf886d548b6bd1f',t:'MTc2ODY4MDk0OA=='};var a=document.createElement('script');a.src='/cdn-cgi/challenge-platform/scripts/jsd/main.js';document.getElementsByTagName('head')[0].appendChild(a);";b.getElementsByTagName('head')[0].appendChild(d)}}if(document.body){var a=document.createElement('iframe');a.height=1;a.width=1;a.style.position='absolute';a.style.top=0;a.style.left=0;a.style.border='none';a.style.visibility='hidden';document.body.appendChild(a);if('loading'!==document.readyState)c();else if(window.addEventListener)document.addEventListener('DOMContentLoaded',c);else{var e=document.onreadystatechange||function(){};document.onreadystatechange=function(b){e(b);'loading'!==document.readyState&&(document.onreadystatechange=e,c())}}}})();</script>