Line break other than \n in MATLAB - matlab

Question

The following b variable seems to have a last character corresponding to a line break but it is not the classical '\n' character. This is very embarrassing for print using this variable:
K>> b
b =
toto_titi
K>> fprintf('This strange variable (%s) is very strange !!!\n', b);
This strange variable (toto_titi
) is very strange !!!
Indeed, the needed print would be:
This strange variable (toto_titi) is very strange !!!
Below, few observed facts with this variable:
K>> class(b)
ans =
char
K>> [b 'end']
ans =
toto_titi
end
K>> b(end)
ans =
K>> regexp(b,'_', 'split')
ans =
'toto' 'titi…'
I confess that I do not exactely understand for the three dots in 'titi…' but I suppose that here is a part of the explanation !!!
A quick and dirty method will be to remove the last invisible character that cause the line break but if in other application the last caharacter in the b variable is a "real" character we will lost this last character (ex. toto_tit in place of toto_titi).
A MATLAB equivalent of the python strip() exist ?
What is this invisible character in the b variable ?
EDIT 1:
A good idea, from rahnema1, is to determine what is the ASCII code for this invisible character:
K>> double(b)
ans =
116 111 116 111 95 116 105 116 105 13
K>> for i = 1 : 60
str = [num2str(i) ' ' char(i) ' '...
num2str(i+32) ' ' char(i+32) ' '...
num2str(i+64) ' ' char(i+64)];
disp(str)
end
1 33 ! 65 A
2 34 " 66 B
3 35 # 67 C
4 36 $ 68 D
5 37 % 69 E
6 38 & 70 F
7 39 ' 71 G
8 40 ( 72 H
9 41 ) 73 I
10
42 * 74 J
11 43 + 75 K
12 44 , 76 L
13
45 - 77 M
14 46 . 78 N
15 47 / 79 O
16 48 0 80 P
17 49 1 81 Q
18 50 2 82 R
19 51 3 83 S
20 52 4 84 T
21 53 5 85 U
22 54 6 86 V
23 55 7 87 W
24 56 8 88 X
25 57 9 89 Y
26 58 : 90 Z
27 59 ; 91 [
28 60 < 92 \
29 61 = 93 ]
30 62 > 94 ^
31 63 ? 95 _
32 64 # 96 `
33 ! 65 A 97 a
34 " 66 B 98 b
35 # 67 C 99 c
36 $ 68 D 100 d
37 % 69 E 101 e
38 & 70 F 102 f
39 ' 71 G 103 g
40 ( 72 H 104 h
41 ) 73 I 105 i
42 * 74 J 106 j
43 + 75 K 107 k
44 , 76 L 108 l
45 - 77 M 109 m
46 . 78 N 110 n
47 / 79 O 111 o
48 0 80 P 112 p
49 1 81 Q 113 q
50 2 82 R 114 r
51 3 83 S 115 s
52 4 84 T 116 t
53 5 85 U 117 u
54 6 86 V 118 v
55 7 87 W 119 w
56 8 88 X 120 x
57 9 89 Y 121 y
58 : 90 Z 122 z
59 ; 91 [ 123 {
60 < 92 \ 124 |
EDIT 2:
Works around the idea of rahnema1 and excaza:
. If we know the ASCII code (by using strrep):
K>> fprintf('This strange variable (%s) is very stange !!!\n', strrep(b,char(13),''));
This strange variable (toto_titi) is very stange !!!
. For remove leading and trailing whitespace (by using strtrim):
fprintf('This strange variable (%s) is very stange !!!\n', strtrim(b));
This strange variable (toto_titi) is very stange !!!