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Question: Is there a worksaround for this oddity in RegMatch and RegSubs?

Question:Is there a worksaround for this oddity in RegMatch and RegSubs?

peter2108 95
stringtools string
November 09 2018
0


 

> 

with(StringTools)
> 

s := "xABCx etc"; RegMatch("x(.+)x", s, 'm', 'n'); m; n; RegSubs(m = n, s)

"xABCx etc"

  

true

  

"xABCx"

  

"ABC"

  

"ABC etc"

 (1)
> 

s := "(ABC) etc"; RegMatch("\\((.+)\\)", s, 'm', 'n'); m; n; RegSubs(m = n, s)

"(ABC) etc"

  

true

  

"(ABC)"

  

"ABC"

  

"(ABC) etc"

 (2)
> 

``

In the second case RegSubs treats the expression m as containing special characters. Can one tell it to treat what it receives as a literal string - perhaps some "escape" function?
 

Download regsubs_problem.mw

EDIT  There is such a function. Escape(m, 'regexp') suffices.

 
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