article.php

Denna kod är public domain. Om ni hittar fel eller vill ändra något i koden blir jag jätteglad om ni skickar dessa ändringar till jesper [at] fantasi [punkt] se.


<?php

  /**
   * TODO: Separat program som genererar xml-filer av källkodsfilerna så att källkoder kan ligga kvar i ~/source och filerna visas av article.php (dumpa sourceview)
   * TODO: Thumbnail i index
   * TODO: <related>nyckelord#</related> -> Se även --- nyckelord1 | nyckelord2
   * TODO: Nyckelord: <code>void</code>
   * TODO: Parsa efter nyckelord i tabeller.
   * TODO: Skriv om returtyper på Amigan i returnera.xml
   * TODO: escape-sekvenser.xml är inte klar.
   */

  include("framework.php");

  function str2array($str) {
    return explode("-+-", $str);
  }

  function strtourl($str) {
    $result = "";
    for ($i = 0; $i < strlen($str); $i++) {
      $ch = $str[$i];
      switch ($ch) {
        case ' ': $result = $result."%20"; break;
        case '&': $result = $result."%26"; break;
        case '+': $result = $result."%2b"; break;
        case '-': $result = $result."%2d"; break;
        case 'Å': $result = $result."%e5"; break;
        case 'Ä': $result = $result."%e4"; break;
        case 'Ö': $result = $result."%f6"; break;
        case 'å': $result = $result."%c5"; break;
        case 'ä': $result = $result."%c4"; break;
        case 'ö': $result = $result."%d6"; break;
        default: $result = $result.$ch;
      }
    }

    return $result;
  }

  function strtohtml($str) {
    $result = "";
    $isoStr = utf8_decode($str);
    for ($i = 0; $i < strlen($isoStr); $i++) {
      $ch = $isoStr[$i];
      switch ($ch) {
        case utf8_decode('Å'): $result = $result.utf8_encode("&Aring;"); break;
        case utf8_decode('Ä'): $result = $result.utf8_encode("&Auml;"); break;
        case utf8_decode('Ö'): $result = $result.utf8_encode("&Ouml;"); break;
        case utf8_decode('å'): $result = $result.utf8_encode("&aring;"); break;
        case utf8_decode('ä'): $result = $result.utf8_encode("&auml;"); break;
        case utf8_decode('ö'): $result = $result.utf8_encode("&ouml;"); break;
        case utf8_decode('é'): $result = $result.utf8_encode("&eacute;"); break;
        default: $result = $result.utf8_encode($ch);
      }
    }

    return $result;
  }

  function articleStart($parser, $elementName, $elementAttrs) {
    echo strtohtml($GLOBALS["word"]);
    $GLOBALS["word"] = "";

    if (!$GLOBALS["display"]) {
      return;
    }

    switch($elementName) {
      case "KEYWORD":
        xml_set_character_data_handler($parser, "ignore");
        break;

      case "TOPIC":
        xml_set_character_data_handler($parser, "type");
        if ($elementAttrs["LABEL"] != null) {
          echo "<a name=\"".strtohtml($elementAttrs["LABEL"])."\"></a>";
        }
        if ($elementAttrs["SUBTITLE"] != null) {
          $GLOBALS["subtitle"] = "<br><font size=\"-1\">".$elementAttrs["SUBTITLE"]."</font>";
        } else {
          $GLOBALS["subtitle"] = "";
        }
        echo "<h1>";
        break;

      case "SUBTOPIC":
        if ($elementAttrs["LABEL"] != null) {
          echo "<a name=\"".strtohtml($elementAttrs["LABEL"])."\"></a>";
        }
        if ($elementAttrs["SUBTITLE"] != null) {
          $GLOBALS["subtitle"] = "<br><font size=\"-1\">".$elementAttrs["SUBTITLE"]."</font>";
        } else {
          $GLOBALS["subtitle"] = "";
        }
        if ($elementAttrs["DATE"] != null) {
          $GLOBALS["topicdate"] = $elementAttrs["DATE"];
        } else {
          $GLOBALS["topicdate"] = "";
        }
        echo "<h3>";
        break;

      case "SECTION":
        $GLOBALS["found_language"] = false;
        break;

      case "LANGUAGE":
        if ($elementAttrs["LANG"] == $GLOBALS["language"]) {
          $GLOBALS["found_language"] = true;
        } else if ($GLOBALS["found_language"] || $elementAttrs["LANG"] != $GLOBALS["default_language"]) {
          xml_set_character_data_handler($parser, "ignore");
          $GLOBALS["display"] = false;
        }
        break;

      case "INGRESS":
        echo "<p class=\"ingress\">";
        break;

      case "TEXT":
        if ($elementAttrs["STYLE"] == "small") {
          echo "<p class=\"imgtext\">";
        } else if ($elementAttrs["STYLE"] == "large") {
          echo "<p class=\"slogan\">";
        } else if ($elementAttrs["STYLE"] == "alert") {
          echo "<p class=\"alert\">";
        } else {
          echo "<p class=\"maincontent\">";
        }
        if ($elementAttrs["TOPIC"] != null) {
          echo "<b>".strtohtml($elementAttrs["TOPIC"])."</b> ";
        }
        break;

      case "A":
        xml_set_character_data_handler($parser, "type");
        echo "<a href=\"".strtohtml($elementAttrs["HREF"])."\">";
        break;

      case "IMAGE":
        if ($elementAttrs["ALIGN"] == "center") {
          echo "<div align=\"center\">";
        } else if ($elementAttrs["ALIGN"] == "left") {
          echo "<div align=\"left\">";
        } else if ($elementAttrs["ALIGN"] == "right") {
          echo "<div align=\"right\">";
        }
        if ($elementAttrs["BOX"] == "true" || $elementAttrs["BOX"] == "notext") {
          echo "<table class=\"imgframe\"><tr><td class=\"fullcell\">";
        }
        if ($elementAttrs["LINK"] != null) {
          echo "<a href=\"".$elementAttrs["LINK"]."\">";
        }
        echo "<img width=\"".$elementAttrs["WIDTH"]."\" height=\"".$elementAttrs["HEIGHT"];
        echo "\" src=\"gfx/".strtohtml($elementAttrs["SRC"])."\"";
        echo " alt=\"".strtohtml($elementAttrs["ALT"])."\">";
        if ($elementAttrs["LINK"] != null) {
          echo "</a>";
        }
        if ($elementAttrs["BOX"] == "true")
        {
          echo "<p class=\"imgtext\">";
          echo strtohtml($elementAttrs["ALT"]);
          echo "</p></td></tr></table>";
        } else if ($elementAttrs["BOX"] == "notext") {
          echo "</td></tr></table>";
        }
        if ($elementAttrs["ALIGN"] != null) {
          echo "</div>";
        }
        break;

      case "IMAGEGROUP":
        if ($elementAttrs["ALIGN"] == "center") {
          echo "<div align=\"center\">";
        } else if ($elementAttrs["ALIGN"] == "left") {
          echo "<div align=\"left\">";
        } else if ($elementAttrs["ALIGN"] == "right") {
          echo "<div align=\"right\">";
        } else {
          echo "<div>";
        }
        echo "<table class=\"imgframe\"><tr><td class=\"fullcell\">";
        $GLOBALS["imagetext"] = $elementAttrs["TEXT"];
        break;

      case "EM":
        echo "<em>";
        break;

      case "CODE":
        echo "<code>";
        break;

      case "CODEBOX":
        if ($elementAttrs["TITLE"] != null) {
          echo "<div class=\"codebox\"><h4 class=\"codeboxtitle\">".
               strtohtml($elementAttrs["TITLE"])."</h4><pre class=\"nomargin\">";
        } else {
          echo "<div class=\"codebox\"><pre class=\"nomargin\">";
        }
        break;

      case "FORMULABOX":
        if ($elementAttrs["TITLE"] != null) {
          echo "<div class=\"formulabox\"><h4 class=\"codeboxtitle\">".
               strtohtml($elementAttrs["TITLE"])."</h4><pre class=\"nomargin\">";
        } else {
          echo "<div class=\"formulabox\"><pre class=\"nomargin\">";
        }
        break;

      case "LT":
        echo "&lt;";
        break;

      case "GT":
        echo "&gt;";
        break;

      case "AMP":
        echo "&amp;";
        break;

      case "NBSP":
        echo "&nbsp;";
        break;

      case "LIST":
        echo "<ul class=\"maincontent\">";
        break;

      case "ITEM":
        echo "<li>";
        break;

      case "SUB":
        echo "<sub>";
        break;

      case "COLUMN":
        echo "<table class=\"noborder fullwidth\"><tr><td class=\"fullcell\">";
        break;

      case "COLUMNBREAK":
        echo "</td><td class=\"fullcell\">";
        break;

      case "TABLE":
        if ($elementAttrs["START2"] == null) {
          if ($elementAttrs["INNER"] == "true") {
            fitable($elementAttrs["START"],
                    str2Array(strtohtml($elementAttrs["HEADER"])),
                    str2array(strtohtml($elementAttrs["STYLE"])));
          } else {
            ftable($elementAttrs["START"],
                   str2Array(strtohtml($elementAttrs["HEADER"])),
                   str2array(strtohtml($elementAttrs["STYLE"])));
          }
        } else {
          ftable2($elementAttrs["START1"],
                  str2Array(strtohtml($elementAttrs["HEADER1"])),
                  $elementAttrs["START2"],
                  str2Array(strtohtml($elementAttrs["HEADER2"])),
                  str2array(strtohtml($elementAttrs["STYLE"])));
        }
        break;

      case "HEADER":
        ftheader(str2array(strtohtml($elementAttrs["DATA"])),
                 str2array(strtohtml($elementAttrs["STYLE"])));
        break;

      case "ROW":
        if ($elementAttrs["STYLE"] != null) {
          $style = str2array(strtohtml($elementAttrs["STYLE"]));
        } else {
          $style = null;
        }
        if ($elementAttrs["DATA2"] == null) {
          ftline(str2array(strtohtml($elementAttrs["DATA"])), $style);
        } else {
          ftline2(str2array(strtohtml($elementAttrs["DATA1"])),
                  str2array(strtohtml($elementAttrs["DATA2"])), $style);
        }
        break;

      case "APPLET":
        echo "<p class=\"formulabox\"><applet codebase=\"java\" code=\"".
             $elementAttrs["CLASS"]."\" width=\"".$elementAttrs["WIDTH"]."\" height=\"".
             $elementAttrs["HEIGHT"]."\" alt=\"".strtohtml($elementAttrs["ALT"])."\">";
        echo strtohtml($elementAttrs["ALT"]);
        echo "</applet></p>";
        break;
    }
  }

  function articleStop($parser, $elementName) {
    echo strtohtml($GLOBALS["word"]);
    $GLOBALS["word"] = "";

    if ($elementName == "LANGUAGE") {
      xml_set_character_data_handler($parser, "keywordFinder");
      $GLOBALS["display"] = true;
      return;
    }

    if (!$GLOBALS["display"]) {
      return;
    }

    switch($elementName) {
      case "KEYWORD":
        xml_set_character_data_handler($parser, "keywordFinder");
        break;

      case "TOPIC":
        echo strtohtml($GLOBALS["subtitle"])."</h1>";
        xml_set_character_data_handler($parser, "keywordFinder");
        break;

      case "SUBTOPIC":
        echo strtohtml($GLOBALS["subtitle"])."</h3>";
        echo "<div class=\"topicdate\">".strtohtml($GLOBALS["topicdate"])."</div>";
        break;

      case "SECTION":
        break;

      case "INGRESS":
      case "TEXT":
        echo "</p>";
        break;

      case "A":
        echo "</a>";
        xml_set_character_data_handler($parser, "keywordFinder");
        break;

      case "IMAGEGROUP":
        if ($GLOBALS["imagetext"] != null) {
          echo "<p class=\"imgtext\">";
          echo strtohtml($GLOBALS["imagetext"]);
          echo "</p>";
        }
        echo "</td></tr></table>";
        echo "</div>";
        break;

      case "EM":
        echo "</em>";
        break;

      case "CODE":
        echo "</code>";
        break;

      case "CODEBOX":
      case "FORMULABOX":
        echo "</pre></div>";
        break;

      case "LIST":
        echo "</ul>";
        break;

      case "SUB":
        echo "</sub>";
        break;

      case "COLUMN":
        echo "</td></tr></table>";
        break;

      case "TABLE":
        ftend();
        break;

      case "FITABLE":
        fitend();
        break;
    }
  }

  function type($parser, $data) {
    // Only print this text.
    echo strtohtml($data);
  }

  function keywordFinder($parser, $text) {
    // Split data into words and search $keywords for a match.
    $length = strlen($text);

    for ($i = 0; $i < $length; $i++) {
      $ch = substr($text, $i, 1);
      if (preg_match("'[a-zA-ZåäöÅÄÖ0-9_\-]'", $ch)) {
        $GLOBALS["word"] = $GLOBALS["word"].$ch;
      } else {
        if (array_key_exists(strtolower($GLOBALS["word"]), $GLOBALS["keys"]) &&
            strcmp($GLOBALS["keys"][strtolower($GLOBALS["currentKey"])]["Target"],
                   $GLOBALS["keys"][strtolower($GLOBALS["word"])]["Target"]) != 0) {
          echo "<a class=\"keyword\" href=\"article.php?cat=".
               $GLOBALS["keys"][strtolower($GLOBALS["word"])]["category"]."&amp;key=".$GLOBALS["word"].
               "&amp;lang=".$GLOBALS["language"]."\">".strtohtml($GLOBALS["word"])."</a>".strtohtml($ch);
        } else {
          echo strtohtml($GLOBALS["word"].$ch);
        }
        $GLOBALS["word"] = "";
      }
    }
  }

  /****************************************************************************
   * Create the keyword table.
   */

  $sourceDir = "articles/";
  $category = $_GET["cat"];

  $language = $_GET["lang"];
  $default_language = "SE";
  if ($language == null) {
    $language = $default_language;
  }
  $display = true;
  $statistics = isset($_GET["stat"]);

  if (file_exists($sourceDir.$category)) {
    $sourceDir = $sourceDir.$category."/";
  }

  keysIndexBuilder($sourceDir);

//  foreach ($keys as $k) {
//    echo "TheKey: ".$k["TheKey"]."<br>";
//    echo "Target: ".$k["Target"]."<br>";
//    echo "shortDesc: ".$k["shortDesc"]."<br>";
//    echo "visible: ".$k["visible"]."<br>";
//    echo "moreText: ".$k["moreText"]."<br>";
//    echo "category: ".$k["category"]."<br>";
//    echo "Image: ".$k["Image"]."<br>";
//    echo "Count: ".$k["Count"]."<br>";
//  }

  if ($_GET["key"] != null) {
    /**************************************************************************
     * Display article based on keyword.
     */
    $target = $keys[strtolower($_GET["key"])]["Target"];

    if ($target != NULL) {
      $topic = $keys[strtolower($_GET["key"])]["TheKey"];
      $title = "K&auml;llkodsk&auml;llan - ".$topic;
    } else {
      $topic = $_GET["key"];
      $title = "K&auml;llkodsk&auml;llan - Keyword not found";
    }

    $GLOBALS["currentKey"] = $topic;

    if ($target != NULL && file_exists($sourceDir.$target.".xml")) {
      $currentFile = $sourceDir.$target.".xml";
      include("header.php");

      $counter_file = "counters/".strtolower($target);
      if (file_exists($counter_file)) {
        $count = intval(file_get_contents($counter_file));
        $count++;
      } else {
        $count = 1;
      }
      file_put_contents($counter_file, $count);

      $parser = xml_parser_create();
      xml_set_element_handler($parser, "articleStart", "articleStop");
      xml_set_character_data_handler($parser, "keywordFinder");

      $file = html_entity_decode(file_get_contents($sourceDir.$target.".xml"));
      $GLOBALS["word"] = "";
      xml_parse($parser, $file) or die (sprintf("XML Error during page read: %s at line %d",
                                                xml_error_string(xml_get_error_code($parser)),
                                                xml_get_current_line_number($parser)));
      xml_parser_free($parser);

      if ($language == "EN") {
        echo "<p class=\"formulabox\"><a href=\"article.php?cat=".$category."&lang=".$language.
             "\">Back to index</a></p>";
      } else {
        echo "<p class=\"formulabox\"><a href=\"article.php?cat=".$category."&lang=".$language.
             "\">Tillbaka till indexet</a></p>";
      }
    } else {
      $currentFile = "KeyNotFound-".$topic;
      include("header.php");
      echo "<h1>".$topic."</h1>";
      echo "<p class=\"maincontent\">Keyword not found.</p>";
    }
  } else {
    /**************************************************************************
     * Generate index over all articles.
     */
    $title = "Artikelindex";
    $category = $_GET["cat"];
    $currentFile = __FILE__;
    include("header.php");

    if ($category == "software") {
      if ($language == "EN") {
        echo "<h1>Article index and prorgammers dictionary</h1>";
        echo "<p class=\"maincontent\">";
        echo "If you don't find the word you are looking for use ";
        echo "<a href=\"ask.php\">this form</a> to tell me what you want to ";
        echo "read about.";
        echo "</p>";
      } else {
        echo "<h1>Artikelindex och ordlista med programmeringstermer</h1>";
        echo "<p class=\"maincontent\">";
        echo "Hittar du inte termen eller f&ouml;rklaringen du s&ouml;ker? ";
        echo "Anv&auml;nd <b><a href=\"ask.php\">fr&aring;geformul&auml;ret</a></b> ";
        echo "f&ouml;r att tala om vad du vill l&auml;sa om.";
        echo "</p>";
      }
    } else if ($category == "hardware") {
      if ($language == "EN") {
        echo "<h1>Blueprints and other hardware information</h1>";
        echo "<p class=\"maincontent\">";
        echo "Most of these hardware projects are meant for the Amiga computer. ";
        echo "Some of these schematics are my own design, some are modifications of schematics ";
        echo "found on the Aminet, and some are simply copied and reworked to fit the layout ";
        echo "of this page. I only publish schematics that I have built myself and know that ";
        echo "they works. Do you want help to build or do you have other questions regarding ";
        echo "Amiga hardware? <a href=\"contact.php\">Contact Fantasi.</a>";
        echo "</p>";
      } else {
        echo "<h1>Ritningar och annan h&aring;rdvaruinformation</h1>";
        echo "<p class=\"maincontent\">";
        echo "De flesta av dessa h&aring;rdvaruprojekt &auml;r f&ouml;r Amiga classic. ";
        echo "N&aring;gra av byggprojekten som finns beskrivna h&auml;r &auml;r &ouml;vers&auml;ttningar ";
        echo "av ritningar som finns p&aring; Aminet. ";
        echo "Vill du ha hj&auml;lp att bygga eller har du andra fr&aring;gor om ";
        echo "Amigah&aring;rdvara? <a href=\"contact.php\">H&ouml;r av dig till Fantasi.</a>";
        echo "</p>";
      }
    } else if ($category == "lyrics") {
      if ($language == "EN") {
        echo "<h1>Lyrics</h1>";
        echo "<p class=\"maincontent\">";
        echo "These are a bunch of lyrics that I have composed. Mainly computer related, almost ";
        echo "all in Swedish. I take no responsibility for what Google translate might think that ";
        echo "they mean. ";
        echo "</p>";
      } else {
        echo "<h1>S&aring;ngtexter</h1>";
        echo "<p class=\"alert\">";
        echo "<font size=\"+2\"><b>Varning!</b></font><br>";
        echo "De flesta s&aring;ngtexter som publiceras h&auml;r &auml;r skrivna i olika studentsammanhang och har ett ";
        echo "ganska grabbigt studentg&auml;ng (datavetare) som m&aring;lgrupp. En del texter ";
        echo "&auml;r varken politiskt korrekta, genomt&auml;nkta eller l&auml;mpade f&ouml;r de yngre. ";
        echo "<br><b>L&auml;s dem p&aring; egen risk.</b>";
        echo "</p>";
      }
    } else {
      if ($language == "EN") {
        echo "<h1>Fantasi's article database</h1>";
      } else {
        echo "<h1>Fantasis artikeldatabas</h1>";
      }
    }

    $lastFirstChar = 0;

    echo "<table class=\"ftable\">";

    ksort($keys, SORT_STRING);
    $index = count($keys);
    reset($keys);
    while ($index > 0) {
      $index--;
      $key = key($keys);
      $keyObject = current($keys);
      next($keys);

      if (!$keyObject["visible"] ||
          ($category != NULL && $keyObject["category"] != $category && $keyObject["category"] != "")) {
        continue;
      }

      $firstChar = ord(utf8_decode(strtoupper($key)));
      if ($firstChar < 65) {
        $firstChar = 64;
      }

      if ($firstChar != $lastFirstChar) {
        echo "<tr><th>&nbsp;</th>";
        if ($statistics) {
          echo "<th>&nbsp;</th>";
        }
        echo "<td class=\"fheader\"><b>- ";
        if ($firstChar > 64) {
          echo strtohtml(utf8_encode(chr($firstChar)));
        } else {
          if ($language == "EN") {
            echo "Numbers &amp; Symbols";
          } else {
            echo "Siffror &amp; Symboler";
          }
        }
        echo " -</b></td></tr><tr><td class=\"line\" colspan=\"2\"></td></tr>";
        $lastFirstChar = $firstChar;
      }

      $file = strtourl($keyObject["TheKey"]);
      echo "<tr><th class=\"framelineheader\"><a class=\"menu-header\" name=\"";
      echo strtohtml($key)."\" href=\""."article.php?cat=".$category."&amp;key=".$file."&amp;lang=".$language.
           "\">".strtohtml($keyObject["TheKey"])."</a></th>";
      if ($statistics) {
        echo "<th class=\"framelineheader\">".$keyObject["count"]."</th>";
      }
      echo "<td class=\"framedata\">";
      echo strtohtml($keyObject["shortDesc"]);
      if ($keyObject["moreText"]) {
        if ($language == "EN") {
          $read_more = "Read more...";
        } else {
          $read_more = "L&auml;s mer h&auml;r...";
        }
        echo "<br><a href=\""."article.php?cat=".$category."&amp;key=".$file."&amp;lang=".$language.
             "\">".$read_more."</a>";
      }
      echo "</td></tr><tr><td class=\"line\" colspan=\"2\"></td></tr>";
    }
    echo "</table>";
  }

  include("footer.php");
?>