Subject: RE: [xsl] tokenize() for text wrap From: "Michael Kay" <mike@xxxxxxxxxxxx> Date: Thu, 10 Feb 2005 16:08:34 -0000 |
The regex in tokenize() is a regular expression that the separator must match. There's no way of constraining the tokens, only the separator. .{30,} matches any string of 30 characters or more, but .{30,}? also matches a zero-length string. I'm not sure what this would achieve even if it worked! I think you can use xsl:analyze-string for this. Use a regex that matches the required token together with the following separator; treat these as two subgroups by parenthesizing the regex, and in the xsl:matching-substring child, pick up the token value as regex-group(1). Michael Kay http://www.saxonica.com/ > -----Original Message----- > From: Richard Lewis [mailto:richardlewis@xxxxxxxxxxxxxx] > Sent: 10 February 2005 15:50 > To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx > Subject: [xsl] tokenize() for text wrap > > Hello XSL list, > > I'm just trying an idea for text wrapping when transforming > XML to SVG. > > Inside a named template to which a long string of non-marked up text > ($text) and some other bits and pieces is passed I have the following > for-each: > > <xsl:for-each select="tokenize($text, '.{30,}?\s+')"> > <tspan dy="{...}"> > <xsl:value-of select="." /> > </tspan> > </xsl:for-each> > > The idea is that it splits the $text string up at the first > space after > 30 characters (this number is actually a variable in the real > thing) and > then formats each token as a tspan element. The output, however, > contains the correct number of tspan elements (which also have the > correct 'dy' attributes) but all but the last one is empty. > (I think the > text in the last one is the correct, though). > > (I'm working with Saxon 8.2B; I've tried different combinations of > $flags for the tokenize() function but the result is always the same) > > Any ideas what might be wrong with it? > > Cheers, > Richard
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