2. EL 6 ELS
  3. tcl
  4. concat(n)

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concat(n) Tcl Built-In Commands concat(n) 





NAME


concat - Join lists together






SYNOPSIS


concat ?arg arg ...?










DESCRIPTION


This command joins each of its arguments together with spaces
    after trimming leading and trailing white-space from each of them. If all
    the arguments are lists, this has the same effect as concatenating them into
    a single list. It permits any number of arguments; if no args are
    supplied, the result is an empty string.






EXAMPLES


Although concat will concatenate lists (so the command:




concat a b {c d e} {f {g h}}



will return “a b c d e f {g h}” as its result), it will
  also concatenate things that are not lists, and hence the command:



concat " a b {c   " d "  e} f"



will return “a b {c d e} f” as its result.

Note that the concatenation does not remove spaces from the middle
    of its arguments, so the command:




concat "a   b   c" { d e f }



will return “a b c d e f” (i.e. with three spaces between
  the a, the b and the c).







SEE ALSO


append(n), eval(n)








KEYWORDS


concatenate, join, lists







  

    8.3
    Tcl