Topic: question about "strcat"

[MeasureUp]

From somewhere I get the following:

Code: [Select]

(strcat "\n123 \"" Part "\"\n")where "Part" is defined as
(setq Part "789")

I know what strcat does but the one about doesn't make sense to me.
Could you please explain it?

Thanks for your help.

[irneb]

That would simply result in a new string of the form:

Code - Auto/Visual Lisp: [Select]

1. "\n123 \"789\"\n"

Basically if you princ that string it would result in something like this:

Code: [Select]

␤
123 "789"␤
 
You might be getting confused due to the escaped " - they do make the appearance of the code a bit garbled. Remember that the \ character is used as an indication that the next character has special meaning. E.g. in your code the \ is used in 2 scenarios:

• \" - means there's a double quote inside the sting. If it wasn't escaped with the back-slash, then there would be no way to add a " into a string.
• \n - means add a new line (␤) character to the string.

[Lee Mac]

...they do make the appearance of the code a bit garbled.

I've always loved the term 'Leaning Toothpick Syndrome (LTS)' 

[MeasureUp]

Thanks to Lee and irneb.
Now I've learned the meaning of "\".