Quoted HTML Engine

This is an example of how to combine python scripts and form inputs. This engine takes an input string and replaces all < and > signs with "<" and ">", thus emitting code that can readily be copied to a source HTML file.

The input form

The following HTML is for the form above, which takes the code pasted in the input area and passes it to the dtml2html python script below.

<form action="." method="POST">
<table>
  <tr>
    <td align="right" valign=top>Code Snippet:</td>
    <td align="left">
      <textarea name="snippet" cols="50" rows="10"></textarea>
    </td>
  </tr>
  <tr><td></td><td><input type="submit" value="Convert" name="dtml2html:method"></td></tr>
</table>
</form>

The Python script: dtml2html

The following script takes the input from the form above and surrounds the given code snippet with <blockquote><pre><hr> tags to offset the code example and then reads each letter of the input text, replacing any occurrances of < or > with HTML markup equivalents, which prevents the code from actually being interpreted when rendered for displaying.

# dtml2html script
# Replace all < and > with "<" and ">"
# This scripts accepts one input parameter, "snippet"

newsnippet = "<blockquote><pre><hr noshade size=1 color=#cccccc>"
for i in snippet:
  if i == "<":
    newsnippet = newsnippet + "&lt;"
  elif i == ">":
    newsnippet = newsnippet + "&gt;"
  else:
    newsnippet = newsnippet + i
newsnippet = newsnippet + "<hr noshade size=1 color=#cccccc></pre></blockquote>"

return newsnippet

mwlang@cybrains.net

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Code Snippet: