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***Back_track*** · (This post was last modified: 06-08-2010 11:59 AM by Back_track.)

Strings, an Introduction

Strings in Tcl are easy , yet powerful. Defining a String is easy as

Code:

set Str "String here!"

Tcl , like many other scripting languages doesn't require a type to declare your
variables in. So, you dont have to do something like this:
String Str = "String here!"; - Java

String Functions

String Length

If you're already familiar with TCL, you know that inside string you can use
[ ] for escape characters. So to display a Strings length you can do this:

Code:

set Str "String here!"

puts "Length of Str [string length $Str]"

The Syntax goes:

type , function, variable

Variables MUST have the scalar symbol before it to show it is a variable.

[Image: 64504_screenshot.png]

To Upper & To Lower

Very simple in TCl

Code:

set Str "RaNdOm StUfF HeRe"

puts "[string toupper $Str]"

=>RANDOM STUFF HERE

puts "[string tolower $Str]"

=> random stuff here

Byte-length

Code:

set Str "String Here!"

=> String Here!

puts "[string bytelength $Str]"

=> 12

May be different than length due to encoding.

***drdebcol*** · 06-09-2010, 03:27 AM

Very good tut. I understand strings in almost every language !