Rexx Programming/How to Rexx/case sensitivity
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Identifiers and keywords[edit | edit source]
The rexx interpreter is case insensitive. This means that identifier names and keywords containing lowercase letters are considered to be the same as those containing uppercase letters:
/* These variables are all the same */
count = 1 Count = COUNT + 1 say count
Literal Strings[edit | edit source]
Lettercase is preserved within literal strings:
say 'Hello!' /* Hello! */ SAY 'HELLO!' /* HELLO! */
Comparison of Strings[edit | edit source]
In rexx, the comparative operators are case sensitive , so strings containing differing letter cases will not be interpreted as matching strings:
if "abc" = "ABC" then say "The strings are the same!" /* This does not happen because the strings are not the same */