[XSL-LIST Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: monotonous nbsp coding
Greg Faron wrote: > At 04:36 PM 11/13/2002, you wrote: > >Greg Faron <gfaron@xxxxxxxxxxxxxxxxxx> wrote: > > > <xsl:if test="string-length() = 0"> > > ^^ Is this a typo? > > No. When called without an argument, the context node is converted to a > string and used as the argument. There are many alternative ways to test > whether the string value of the context node is the empty string, I simply > carried the one that the OP used so as not to confuse the reference. Other > possibilities include > string(.) = '' > normalize-space() = '' > normalize-space(.) = '' The equality tests aren't even needed in those, since the fact that it's in a test attribute means that the whole thing is treated as if it is wrapped in boolean(). The boolean equivalent of an empty string or the number zero is false. > not(string(.)) Yeah, just like that. > normalize-space(string-length(.)) = 0 That's a lot of extra work. The argument to normalize-space() ends up being a number, which has to be coerced to a string, and then your equality test converts it back into a number in order to compare it with zero. normalize-space() with no arguments and no comparisons is all you need. - Mike ____________________________________________________________________________ mike j. brown | xml/xslt: http://skew.org/xml/ denver/boulder, colorado, usa | resume: http://skew.org/~mike/resume/ XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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