A.4 String Handling
This subclause presents the specifications of the
package Strings and several child packages, which provide facilities
for dealing with string data. Fixed-length, bounded-length, and unbounded-length
strings are supported, for String, Wide_String, and Wide_Wide_String.
The string-handling subprograms include searches for pattern strings
and for characters in program-specified sets, translation (via a character-to-character
mapping), and transformation (replacing, inserting, overwriting, and
deleting of substrings).
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