User:EMBee/Scrap: Difference between revisions

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Latest revision as of 10:59, 5 January 2012

add "suggest task" and "task by category" links to tasks page.
suggest task for binary math.
draft task for math with boolean lists like in early lisp as per http://paste.lisp.org/display/126287

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 * suggest task for binary math.
 * draft task for math with boolean lists like in early lisp as per http://paste.lisp.org/display/126287
-==Text to HTML==
-Convert plain text to HTML.
-The plain text has no formatting information.
-It may have centered headlines, numbered sections, paragraphs, lists, and URIs. It could even have tables.
-potential algorithm:
-* split by line
-* find average line length to identify centered lines
-* find isolated lines to identify section headings
-* find URIs
-* identify section numbering
-* identify bullet and numbered lists
-* identify paragraphs
-* identify indented lines
-* if possible identify tables
-to ensure valid html/xhtml create a nested structure:
-* create an xml node
-* add elements to node
-* add lines to element if multiline paragraph
-<lang Pike>// function to calculate the average line length:
-int linelength(array lines)
-{
-    array sizes = sizeof(lines[*])-({0});
-    sizes = sort(sizes);
-    // only consider the larger half of lines minus the top 5%
-    array larger = sizes[sizeof(sizes)/2..sizeof(sizes)-sizeof(sizes)/20];
-    int averagelarger = `+(@larger)/sizeof(larger);
-    return averagelarger;
-}
-array mark_up(array lines)
-{
-    array markup = ({});
-    // find special lines
-    foreach(lines; int index; string line)
-    {
-        string strippedline = String.trim_whites(line);
-        if (sizeof(strippedline))
-        {
-            string firstchar = strippedline[0..0];
-            int pos = search(line, firstchar);
-            if (lines[index-1]-" "-"\t" =="" && lines[index+1]-" "-"\t" =="")
-                markup +=({ ({ "heading", strippedline, pos }) });
-            else if (firstchar == "*")
-                markup += ({ ({ "bullet", strippedline, pos }) });
-            else if ( (<"0","1","2","3","4","5","6","7","8","9">)[firstchar] )
-                markup += ({ ({ "number", strippedline, pos }) });
-            else if (pos > 0)
-                markup += ({ ({ "indent", strippedline, pos }) });
-            else
-                markup += ({ ({ "regular", strippedline, pos }) });
-        }
-        else markup += ({ ({ "empty" }) });
-    }
-    foreach(markup; int index; array line)
-    {
-        if (index > 0 && index < sizeof(markup)-1 )
-        {
-            if (line[0] == "regular" && markup[index-1][0] != "regular" && markup[index+1][0] != "regular")
-                line[0] = "heading";
-            else if (line[0] == "empty" && markup[index-1][0] == "regular" && markup[index+1][0] == "regular")
-                line[0] = "new paragraph";
-            else if (line[0] == "empty" && markup[index-1][0] == "regular" && markup[index+1][0] != "regular")
-                line[0] = "end paragraph";
-            else if (line[0] == "empty" && markup[index-1][0] != "regular" && markup[index+1][0] == "regular")
-                line[0] = "begin paragraph";
-        }
-    }
-    return markup;
-}
-</lang>