(guile.info.gz) SRFI-13 Filtering/Deleting

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(guile.info.gz) SRFI-13 Miscellaneous

(guile.info.gz) SRFI-13

 
 39.11.15 Filtering/Deleting
 ---------------------------
 
 "Filtering" means to remove all characters from a string which do not
 match a given criteria, "deleting" means the opposite.
 
  -- Scheme Procedure: string-filter s char_pred [start end]
      Filter the string S, retaining only those characters that satisfy
      the CHAR_PRED argument.  If the argument is a procedure, it is
      applied to each character as a predicate, if it is a character, it
      is tested for equality and if it is a character set, it is tested
      for membership.
 
  -- Scheme Procedure: string-delete s char_pred [start end]
      Filter the string S, retaining only those characters that do not
      satisfy the CHAR_PRED argument.  If the argument is a procedure,
      it is applied to each character as a predicate, if it is a
      character, it is tested for equality and if it is a character set,
      it is tested for membership.
 

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(guile.info.gz) SRFI-13 Miscellaneous

(guile.info.gz) SRFI-13