Ambiguous rule match in replacing style= attributes in XHTML via XSLT

Question

This is a followup to this question.

I have several tags in a document with several semicolon separated style attributes. Right now I have

Answer 1

EDIT: Just in case real problem gets hide, I have simplified the stylesheet:

Output:

some text

Note: Simpler parsing with space normalization to match properties in an existencial comparison. Generating content without optimization (selecting no match, selecting match). "Stateful" or "stackful" named template for output nested elements. Either way there are two rules (identity and span with @style overwriting it) and two names templates (parser/tokenizer and generator of nested content)

Original stylesheet:

Note: Recursion paradise. Nested tokenizer for parsing style properties. "Stateful" template for nested content (and performance matching properties, by the way)