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--- manual:chapter3:strings [2017/09/02 13:50]
smartin [Commands for strings]
+++ manual:chapter3:strings [2017/09/09 13:04]
claudio
@@ Line 6: / Line 6: @@
 ----
+==== Length of strings ====
+A Unicode Code Point is an indivisible unit of text. A character is usually a single Code Point, but not necessarily. A character may be formed by a group of Unicode Code Points that includes a starter character and optionally a series of overlapping characters or modifiers.
+There are separate commands to measure the length of a string. The most useful is ''STRLEN'', which returns the number of characters in a string. The command ''STRLENCP'' returns the number of Code Points in the string.
+Finally, the command ''SIZE'' returns the size in bytes of the string.
 ==== Commands for strings ====
 The following table summarizes commands which can be applied to strings.
@@ Line 24: / Line 35: @@
 | ''SREV'' | Reverse the string | ''"Hello World" SREV'' yields ''"dlroW olleH"'' |
 | ''REPL'' | Replace part of a string with another at the specified position | ''"Hello World" 7 "Universe" REPL'' yields ''"Hello Universe"''|
-| ''SREPL'' | | |
+| ''SREPL'' | Search and replace a string (return 1 if successful, 0 if not) | ''"Hello World" "World" "Universe" SREPL'' yields ''"Hello Universe" 1'' |
 | ''SUB'' | | |
 | ''HEAD'' | | |