Looping in schematron

[mu258770]

Hi team,

I would like to create a schematron rule which can be looped through the element content. The need is that I need to check the number of characters before a line break and should loop through the content finding next line break. This is for pre-formatted elements. The warning is for adding more number of characters in a line than allowed.

I have done below coding but it works only for one line break:

Code: Select all

  <pattern>

        <rule id="1" context="*[contains(@class,'- topic/pre ')]">	

            <assert test="string-length(substring-before(.,'&#10;')) < 50 " role="warning"> Do not exceed number of characters in a line in pre than 50

            </assert>

        </rule>

    </pattern>

Please let me know if you have a way forward for me on this

Thanks,
Shabeer

[tavy]

Hi Shabeer,

You need to determine each line of text from your "pre" element and check its length. I have created a sample for you using XSLT to determine the lines of text. You can find the sample below:

Code: Select all

<sch:schema xmlns:sch="http://purl.oclc.org/dsdl/schematron" queryBinding="xslt2"

    xmlns:xsl="http://www.w3.org/1999/XSL/Transform">

    <sch:pattern>

        <sch:rule context="*[contains(@class, '- topic/pre ')]">

            <xsl:variable name="offendingLines">

                <xsl:for-each select="tokenize(text(), '&#10;')">

                    <xsl:if test="string-length(current()) > 50">

                        <xsl:value-of select="concat(position(), ', ')"/>

                    </xsl:if>

                </xsl:for-each>

            </xsl:variable>

            <sch:report test="string-length($offendingLines) > 0"> Lines (<sch:value-of

                    select="$offendingLines"/>) in pre should not exceed 50 characters.

            </sch:report>

        </sch:rule>

    </sch:pattern>

</sch:schema>

Best Regards,
Octavian