regexp find next char

I have the following string:

A = p:\A to B\Mat Lab\Ques Tion\

And I'm trying to extract the B = 'Mat Lab' and C = 'Ques Tion'.

The '\A to B\' has always the same structure, namely '\o{134}[A-Z]\sto\s[A-Z]\o{134} in regexp (\o{134} is '\')

I want to find B and C. They can be one word and multiple words. Does anybody know, why below isn't working? (it is working when B='Matlab' and C='Question' though)

[start_id,end_id] = regexp(A,'\o{134}[A-Z]\sto\s[A-Z]\o{134}\w*(?=\o{134})\o{134}\w*\w*(?=\o{134})');

B = char(extractBefore(dirname(start_id+8:end_id),'\'));

C = char(extractAfter(dirname(start_id+8:end_id),'\'));

Answer 1

[jonas]

No real benefit in using regexp here

strs = strsplit(A,'\')
id = find(strcmp(strs,'A to B')==true)
B = strs{id+1}
C = strs{id+2}

[Mjan88]

Great! Thanks alot!

Answer 2

[Sean de Wolski]

Use string arrays!

>> a = string('A = p:\A to B\Mat Lab\Ques Tion\')
a = 
    "A = p:\A to B\Mat Lab\Ques Tion\"
>> as = split(a, "\")
as = 
  5×1 string array
    "A = p:"
    "A to B"
    "Mat Lab"
    "Ques Tion"
    ""
>> a2b = find(contains(as, "A to B"))
a2b =
     2
>> ccdd = as(a2b+[1 2])
ccdd = 
  2×1 string array
    "Mat Lab"
    "Ques Tion"