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\S1{stringinst} String Manipulation Instructions
\S2{StrCpy} StrCpy
\c user_var(destination) str [maxlen] [start_offset]
Sets the user variable $x with str. Note that str can contain other variables, or the user variable being set (concatenating strings this way is possible, etc). If maxlen is specified, the string will be a maximum of maxlen characters (if maxlen is negative, the string will be truncated abs(maxlen) characters from the end). If start_offset is specified, the source is offset by it (if start_offset is negative, it will start abs(start_offset) from the end of the string).
\c StrCpy $0 "a string" # = "a string"
\c StrCpy $0 "a string" 3 # = "a s"
\c StrCpy $0 "a string" -1 # = "a strin"
\c StrCpy $0 "a string" "" 2 # = "string"
\c StrCpy $0 "a string" "" -3 # = "ing"
\c StrCpy $0 "a string" 3 -4 # = "rin"
\S2{StrLen} StrLen
\c user_var(length output) str
Sets user variable $x with the length of str.
\c StrLen $0 "123456" # = 6
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