Geek Answers Handbook

Methods for building HTML in code

The html template is compiled into the application as a resource. fragment of the HTML template looks like this:

<A href="%PANELLINK%" target="_blank">
   <IMG border="0" src="%PANELIMAGE%" style="%IMAGESTYLE%">
</A><BR>
%CAPTIONTEXT%

I like this because the larger HTML resource file contains style, absence-quirks mode, etc.

But, as always, they now want the Anchor tag to be skipped if there is no link. In addition, if there is no header, then the BR tag should be omitted.

Technology in question Nº1

Given that I don't want to create whole HTML snippets in C # code, I looked at something like:

%ANCHORSTARTTAGPREFIX%<A href="%PANELLINK%" target="_blank">%ANCHORSTARTTAGPOSTFIX%
   <IMG border="0" src="%PANELIMAGE%" style="%IMAGESTYLE%">
%ANCHORENDTAGPREFIX%</A>%ANCHORENDTAGPOSTFIX%CAPTIONPREFIX%<BR>
%CAPTIONTEXT%%CAPTIONPOSTFIX%

with the thought that I can use pre and postfixes to turn the HTML into:

<!--<A href="%PANELLINK%" target="_blank">-->
   <IMG border="0" src="%PANELIMAGE%" style="%IMAGESTYLE%">
<!--</A>--><!--<BR>
%CAPTIONTEXT%-->

But this is just ridiculous, plus one responder reminds us that it takes up bandwidth and may be a mistake.

Technology in question Nº2

Wholesale Tag Replacement:

%AnchorStartTag%
   <IMG border="0" src="%PANELIMAGE%" style="%IMAGESTYLE%">
%AnchorEndTag%%CaptionStuff%

and running find-replace to change

%AnchorStartTag%

from

"<A href=\"foo\" target=\"blank\""

Nº3

HTML:

<A id="anchor" href="%PANELLINK%" target="_blank">
   <IMG border="0" src="%PANELIMAGE%" style="%IMAGESTYLE%">
</A><BR id="captionBreak">
%CAPTIONTEXT%

HTML DOM . HTML DOM. HTML xhtml, / XML- DOM.

Nº4

:

private const String htmlEmptyTemplate = 
    @"<!DOCTYPE HTML PUBLIC ""-//W3C//DTD HTML 4.01//EN\"""+Environment.NewLine+
    @"   ""http://www.w3.org/TR/html4/strict.dtd"">"+Environment.NewLine+
    @"<HTML>"+Environment.NewLine+
    @"<HEAD>"+Environment.NewLine+
    @"  <TITLE>New Document</TITLE>"+Environment.NewLine+
    @"  <META http-equiv=""X-UA-Compatible"" content=""IE=edge"">"""+Environment.NewLine+
    @"  <META http-equiv=""Content-Type"" content=""text/html; charset=UTF-8"">"+Environment.NewLine+
    @"</HEAD>"+Environment.NewLine+
    @""+Environment.NewLine+
    @"<BODY style=""margin: 0 auto"">"+Environment.NewLine+
    @"  <DIV style=""text-align:center;"">"+Environment.NewLine+
    @"      %ContentArea%"+Environment.NewLine+
    @"  </DIV>" + Environment.NewLine +
    @"</BODY>" + Environment.NewLine +
    @"</HTML>";

private const String htmlAnchorStartTag = 
    @"<A href=""%PANELLINK%"" target=""_blank"">";

//Image is forbidden from having end tag
private const String htmlImageTag = 
    @"<IMG border=""0"" src=""%PANELIMAGE%"" style=""%IMAGESTYLE%"">";

private const String htmlCaptionArea =
    @"<BR>%CAPTIONTEXT%";

. HTML - . , , - . - am .

+3
6

: XML :

<fragment type="link_img_caption">
  <link href="%PANELLINK%" />
  <img src="%PANELIMAGE%" style="%IMAGESTYLE%" />
  <caption text="%CAPTIONTEXT%" />
</fragment>

, "" ( , , XML),

... XML HTML:

<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
  <xsl:output method="html" version="4.0" encoding="iso-8859-1" indent="yes"/>

  <xsl:template match="/">
    <xsl:apply-templates select="fragment" />
  </xsl:template>

  <xsl:template match="fragment[@type = 'link_img_caption']">
    <xsl:choose>
      <xsl:when test="link[@href != '']">
        <a href="{link/@href}" target="_blank">
          <img src="{img/@src}" style="{img/@style}" border="0" />
        </a>
      </xsl:when>
      <xsl:otherwise>
        <img src="{img/@src}" style="{img/@style}" border="0" />
      </xsl:otherwise>
    </xsl:choose>
    <xsl:if test="caption[@text !='']">
      <br />
      <xsl:value-of select="caption/@text" />
    </xsl:if>
  </xsl:template>

</xsl:stylesheet>

- type. , , .

:

<a href="%PANELLINK%" target="_blank">
  <img src="%PANELIMAGE%" style="%IMAGESTYLE%" border="0">
</a>
<br>
%CAPTIONTEXT%

, href XML:

<img src="%PANELIMAGE%" style="%IMAGESTYLE%" border="0">
<br>
%CAPTIONTEXT%
+2

, , , , , XSLT. ( , , ), XML- VB.NET( , ...). # ( VBA), XSLT.

XHTML HTML. . , HTML-, . .

+11

, , .

+2

1.) , , IE.

2.) , - ? ( #), - .

//using PHP in this example
function HTMLImage($imageData, $linkData){
  var str = '';
  //if there is link data, start <a> tag
  $str .= '<a '.{expand any attributes}.'>';

  //add image tag and attributes from $imageData
  $str .= '<img '.{expand any attributes}.'/>';

  //if there is link data, close <a> tag
  $str .= '</a>';
  return $str;
}
0

Template Toolkit, , Perl Python.

test.pl:

use Template;

my $template = Template->new({
  VARIABLES => {
    ImageStyle  => "default",
    CaptionText => "Place Caption Here"
  },
});

$template->process( 'test.tt', {
    panel => {
      link  => "http://Stackoverflow.com/",
      image => "/Content/Img/stackoverflow-logo-250.png",
      alt   => "logo link to homepage"
    }
} );

test.tt:


[% IF panel.link -%]
<A href="[% panel.link %]" alt="[% panel.alt %]" target="_blank">
[%- END -%]

[%- IF panel.image -%]
   <IMG border="0" src="[% panel.image %]" style="[% ImageStyle %]">
[%- END -%]

[%- IF panel.link %]</A>[% END %]<BR>
[% CaptionText %]

:

<A href="http://Stackoverflow.com/" alt="logo link to homepage" target="_blank">
   <IMG border="0" src="/Content/Img/stackoverflow-logo-250.png" style="default">
</A><BR>
Place Caption Here

If the variable is panel.linknot defined, it skips the binding labels.

   <IMG border = "0" src = "/ Content / Img / stackoverflow-logo-250.png" style = "default">
<BR>
Place caption here
0
source

Templates are a serious smell of code. See how Seaside generates html.

[Edit] Another where someone is omitted without a clue.

0
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