[Zope-dev] HTML rendering

[Toby Dickenson]

Arrange for the module below to be imported, and you have an extra tag that
does what you want. It removes spaces very agressively, possibly in some
places that it shouldnt. Use it in dtml as:

<dtml-unitws>Kill    these     spaces</dtml-unitws>





from string import split, strip, join
import DocumentTemplate.DT_Util
from DocumentTemplate.DT_String import String


class UnitWhitespaceTag:
    """
    Removes redundant whitespace (not very conservatively)
    """

    name='unitws'
    blockContinuations=()

    def __init__(self, blocks):
        tname, args, section = blocks[0]
        args = DocumentTemplate.DT_Util.parse_params(args)
        self.blocks = section.blocks

    def render(self,md):
        a = []
        for line in
split(DocumentTemplate.DT_Util.render_blocks(self.blocks, md),'\n'):
            line = strip(line)
            if line:
                b = []
                for word in split(line,' '):
                    b.append(strip(word))
                a.append(join(b,' '))
        return join(a,'\n')

    __call__=render

String.commands['unitws']=UnitWhitespaceTag