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Re: [xsl] Implementation Advice: Grouping Strings by Character Range in XSLT 2

2016-04-29 11:54:31
Dimitre,

I see how that can work.

Cheers,

E.
----
Eliot Kimber, Owner
Contrext, LLC
http://contrext.com




On 4/29/16, 11:38 AM, "Dimitre Novatchev dnovatchev(_at_)gmail(_dot_)com"
<xsl-list-service(_at_)lists(_dot_)mulberrytech(_dot_)com> wrote:

I am at work and don't have the time for a complete/tested
implementation, but one can use the function string-to-codepoints()
and then perform on the result:

<xsl:for-each-group select="$theCodepoints"
group-adjacent=f:codepointToRange(.)>

. . . . . . . .
</xsl:for-each-group>

Cheers,
Dimitre

On Fri, Apr 29, 2016 at 8:04 AM, Eliot Kimber ekimber(_at_)contrext(_dot_)com
<xsl-list-service(_at_)lists(_dot_)mulberrytech(_dot_)com> wrote:
Using XSLT 2, I have a requirement to take text and group contiguous
sequences of characters in markup according to a given character range
the
characters are in. This is to support the application of range-specific
fonts to text in HTML.

I have a static definition of the character ranges for a given national
language and there shouldn't be any overlap between ranges. Given this
static definition, I'm generating XSLT code to operate on text nodes in
order to apply the range markup. The

For example, given the text string "abcdefg" where range "R1" is "cde"
and
R2 is "g", the marked up result should be: abc<span
class="R1">cde</span>f<span class="R2">g</span>

My initial approach is to generate a template that takes the current
language and the text node and then applies templates in a
language-specific mode.

For each language I'm then generating a template to do the range
matching.

My question, once I'm in a language-specific template for a text node,
what is the most efficient and/or easiest to code way to map the string
to
ranges? Since I'm generating the code it doesn't have to be concise.

I'm thinking along the lines of using analyze-string to match on any of
the groups and then within the matching-substring clause have a choice
group to determine which range actually matched. But it feels like I'm
missing a more elegant way to determine the actual range.

Or maybe there's a clearer/simpler/more efficient way using tail
recursion?

Thanks,

Eliot
----
Eliot Kimber, Owner
Contrext, LLC
http://contrext.com





-- 
Cheers,
Dimitre Novatchev
---------------------------------------
Truly great madness cannot be achieved without significant intelligence.
---------------------------------------
To invent, you need a good imagination and a pile of junk
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Never fight an inanimate object
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To avoid situations in which you might make mistakes may be the
biggest mistake of all
------------------------------------
Quality means doing it right when no one is looking.
-------------------------------------
You've achieved success in your field when you don't know whether what
you're doing is work or play
-------------------------------------
To achieve the impossible dream, try going to sleep.
-------------------------------------
Facts do not cease to exist because they are ignored.
-------------------------------------
Typing monkeys will write all Shakespeare's works in 200yrs.Will they
write all patents, too? :)
-------------------------------------
Sanity is madness put to good use.
-------------------------------------
I finally figured out the only reason to be alive is to enjoy it.


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