## formatting.myt - Provides section formatting elements, syntax-highlighted code blocks, and other special filters.
<%!
    import string, re, cgi
    from mako import filters
    
    def plainfilter(f):
        f = re.sub(r'\n[\s\t]*\n[\s\t]*', '</p>\n<p>', f)
        f = "<p>" + f + "</p>"
        return f
    
%>

<%namespace name="nav" file="nav.html"/>

<%def name="section(toc, path, paged, extension, description=None)">
    ## Main section formatting element.
    <%
        item = toc.get_by_path(path)
        subsection = item.depth > 1
    %>
    <A name="${item.path}"></a>
    
    <div class="${subsection and 'subsection' or 'section'}">
    <%
        content = capture(caller.body)
    %>

    <h3>${description or item.description}</h3>
    
    ${content}

    % if (subsection and item.next and item.next.depth >= item.depth) or not subsection:
        % if paged:
            <a href="#top">back to section top</a>
        % else:
            <a href="#${item.get_page_root().path}">back to section top</a>
        % endif
    % endif
    </div>

</%def>


<%def name="formatplain()" filter="plainfilter">
    ${ caller.body() | h}
</%def>


<%def name="codeline()" filter="trim,h">
    <span class="codeline">${ caller.body() }</span>
</%def>

<%def name="code(title=None, syntaxtype='mako', html_escape=False, use_sliders=False)">
    <%!
        import pygments
        from pygments.formatters import HtmlFormatter
        from pygments.lexers import PythonLexer, HtmlLexer, IniLexer
        from mako.ext.pygmentplugin import MakoHtmlLexer
        lexers = {'mako':MakoHtmlLexer(), 'python':PythonLexer(), 'html':HtmlLexer(),
                  'ini':IniLexer()}
    %>
    <%
        lexer = lexers.get(syntaxtype, None)
        # dumb hack to print a </%text> tag inside of a <%text> section
        content = re.sub(r'%CLOSETEXT', '</%text>', capture(caller.body))
        
        if lexer is not None:
            content = pygments.highlight(content, lexer, HtmlFormatter())
        else:
            content = "<pre>" + content + "</pre>"
    %>

    <div class="${ use_sliders and "sliding_code" or "code" }">
        % if title is not None:
            ${title}
        % endif
        ${ content }
    </div>
</%def>