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Thread: tag escaping

  1. #1
    Join Date
    Sep 2003
    Posts
    3

    tag escaping

    I have to convert a xml file to html
    i have a template matching eache tag (<b><i>...)
    i have to escape the <br> tag when a <a> tag are following

    ex. <br>text = carriage return + text

    but

    <br><a href>text</a> = text

    any suggestion?

  2. #2
    Join Date
    Dec 2002
    Location
    Calgary, Canada
    Posts
    6,136
    ...confused....did not understand
    Cheers

    Khalid

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  3. #3
    Join Date
    Sep 2003
    Posts
    3
    sorry for my english.

    i have an xml file and i convert it in html.
    <xml>
    <p>some text<br/>some text</p>
    <p>some text<br/>some text</br><a>link</a></p>
    </xml>

    i want to grab all the <br/> except the one before the <a>

  4. #4
    Join Date
    Aug 2003
    Location
    London, United Kingdom
    Posts
    117
    Hi,

    Just some comments on your xml.

    It should be well-formed like this:

    1. xml declaration on the first line
    2. you must include 1 root element, eg. <p>
    3. you must include both start <br> and end </br> tags
    4. elements must be properly nested
    5. empty elements must be used like this: <br />

    <?xml version="1.0"?>
    <?xml-stylesheet type="text/xsl" href="escaping.xsl"?>
    <p>
    <br>some text</br>
    <br>some text</br>
    <br>some text</br>
    <br>some text</br>
    <br><a>some link</a></br>
    <br>some text</br>
    <br>some text</br>
    <br>some text</br>
    <br>some text</br>
    </p>

    If I get it right, you want a result html, where a line break is inserted after each text node except before a link node?

    The following xsl stylesheet uses xpath expressions to find the node containing a child named <a>.
    It also uses <xsl:choose> to control where to place a line break.

    <?xml version="1.0"?>
    <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
    <xsl:template match="/">
    <html>
    <head><title>Sample XSL Stylesheet</title></head>
    <body>
    <xsl:apply-templates/>
    </body>
    </html>
    </xsl:template>

    <xsl:template match="br">
    <xsl:choose>
    <xsl:when test="child::*[1][self::a]"><xsl:value-of select="." /><xsl:text> </xsl:text></xsl:when>
    <xsltherwise><xsl:value-of select="." /><br /></xsltherwise>
    </xsl:choose>
    </xsl:template>
    </xsl:stylesheet>

    HTH,

  5. #5
    Join Date
    Aug 2003
    Location
    London, United Kingdom
    Posts
    117

    Corrected

    I made some improvement in the code:

    1. I put <br/> before the value-of tag so the line break will occur before the outputted value, as Mr R asked for.
    <xslherwise><br/><xsl:value-of select="."/></xsltherwise>

    2. I was messing around with that axis thing then found out that <xsl:when test="a"> is of course a much simpler way of selecting a node.

    3. I used ... xml:space="preserve">space<xsl:value-of ... instead of <xsl:text> </xsl:text>

    Here's the entire xsl file.

    <?xml version="1.0"?>
    <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
    <xsl:template match="/">
    <html>
    <head><title>Sample XSL Stylesheet</title></head>
    <body>
    <xsl:apply-templates/>
    </body>
    </html>
    </xsl:template>

    <xsl:template match="br">
    <xsl:choose>
    <xsl:when test="a" xml:space="preserve"> <xsl:value-of select="."/></xsl:when>
    <xsltherwise><br/><xsl:value-of select="."/></xsltherwise>
    </xsl:choose>
    </xsl:template>
    </xsl:stylesheet>

    I'm very new to xml, xsl so I would appreciate any feedback on this code...

    Thanks

    Lillu

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