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Dear List,
This should be easy, I think, but I am tearing my hear out on this one... I must be overlooking something obvious... Question: is the first item inside $someparam a text-node or any other node? Whitespace is considered a textnode also. Input: I actually use saxon:parse to get XML out of a snippet like the following: <ins> A Textnode <u> another text node </u></ins> Saxon (parse) turns this in the more useful: <ins> A Textnode <u> another text node </u></ins> Here's my function, the way I have it currently (I know it is wrong). I cannot use current() or anything context-dependent there, it is illegal in a function. <xsl:function name="local:optional-new-font-tag"> <xsl:param name="current-node" /> <xsl:param name="stacked-styles" /> <xsl:choose> <!-- HOWTO: if node starts with text before next node, or only contains text --> <xsl:when test="$current-node[text() | *][position() = 1]"> <xsl:text>NO TAG, JUST TEXT, WRITE FONT_DECL</xsl:text> </xsl:when> <xsl:otherwise> <xsl:text>ANOTHER TAG, DO NOTHING</xsl:text> </xsl:otherwise> </xsl:choose> </xsl:function> Here's my calling template (also used for other tags): <xsl:template match="u|ins" mode="layout"> <xsl:param name="style" /> <xsl:variable name="new-style" select="local:stack-lxf-style($style, 'underlined')" /> <xsl:variable name="font-tag" select="local:optional-new-font-tag(., $new-style)" /> <xsl:value-of select="$font-tag" /> </xsl:template> Now, when there's a text-node following the "u" or "ins" nodes, I must open a new font-declaration (LXF, some really weird non/partial-xml format). In fact, I need to translate XHTML into this LXF format. In case you are wondering, here's some background: Input:
<em>emph text
<strong>some bold text and emph text
<ins>underline, bold and emph</ins>
</strong>
only emph
</em>Output (partially correct, it works like this now): <lxf-font type="italic" />emph text <lxf-font type="italic|bold" />some bold text and emph text <lxf-font type="italic|bold|underlined" />underline, bold, and emph <lxf-font type="normal" /> <!-- from i|b|u --> <lxf-font type="normal" /> <!-- from i|b --> <lxf-font type="italic" />only emph <lxf-font type="normal" /> <!-- from i --> This format, with only opening tags and no closing or enclosing tags (like in normal xml/html style) means that I have to stack the styles when I encounter them. Also, when I get more styles in a row, like the following example, I need to get only one statement, instead of three: Input:
Normal text
<em><strong><ins>
underline, bold and emph text
</ins></strong>
only emph
</em>Output (wrong): Normal text <lxf-font type="italic" /> <lxf-font type="italic|bold" /> <lxf-font type="italic|bold|underlined" />underline, bold, and emph text <lxf-font type="normal" /> <!-- from i|b|u --> <lxf-font type="normal" /> <!-- from i|b --> <lxf-font type="italic" />only emph <lxf-font type="normal" /> <!-- from i --> Output (required, but I find it hard to get): Normal text <lxf-font type="italic|bold|underlined" />underline, bold, and emph text <lxf-font type="italic" />only emph <lxf-font type="normal" /> <!-- from i --> In the correct output example, it show that return-to-normal is only done at the end. Opening a new <lxf-font> statement just means: use this font-style from here onwards. As you can see, winding up and unwinding is not equal, making it a bit hard to to. Though I do have a system running, it has trouble with nested statements, like above. I think I can fix it as soon as I know how to find if a node starts with a text or with a normal node. I tried following-sibling::, ../ with local-name, following::, descendant:: (without self). But somewhere I lost the way to deal with it. Any ideas are much appreciated, Cheers! Abel Braaksma http://abelleba.metacarpus.com
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