Why am I unable to insert new line/tabs in code using TLC string?

I am writing a TLC file to inline an s-function when generating code. In the TLC file, I do a lot of string parsing to generate desirable code for the s-function. While doing so, I am unable to insert newlines and tabs in the generated code in a controlled manner.

The TLC file consists of the following code:

%assign output2_if_else_string = "Start_String : \t"

%assign output2_if_else_string  = FEVAL ("strcat", output2_if_else_string, "My name is")

%assign output2_if_else_string  = FEVAL ("strcat", output2_if_else_string, "\n")

%assign output2_if_else_string  = FEVAL ("strcat", output2_if_else_string, "Anuj Gupta")

I expect the output in my generated c code to contain the following strings:

 ************************************************

 Start_String:My name is

 Anuj Gupta

 ************************************************

Instead the output appears as follows:

 ************************************************

 Start_String :My name isAnuj Gupta

 ************************************************

Answer 1

[MathWorks Support Team]

This behavior is due to TLC string parsing in Simulink 6.4 (Release R2006a).

To work around the issue in this specific example, append /t and /n characters at the beginning of strings when using strcat.

For example, the string parsing code in the user defined TLC file is:

%assign output2_if_else_string = "Start_String : "

%assign output2_if_else_string  = FEVAL ("strcat", output2_if_else_string, "\tMy     name is")

%assign output2_if_else_string  = FEVAL ("strcat", output2_if_else_string, 

"\nAnuj Gupta")