In Octave, the string manipulation function strtok() can be very handy for scanning through words in a long sentence.
In the following example, we have a sentence:
'hello world how are you'
Assuming all words are separated by a white space, we can repeat this command to extract (1) the word string tok and the remaining sentence s.
Concretely, run the following in an octave command line interface (CLI):
octave:93> s = 'hello world how are you'
s = hello world how are you
octave:94> [tok, s] = strtok(s)
tok = hello
s = world how are you
octave:95> [tok, s] = strtok(s)
tok = world
s = how are you
octave:96> [tok, s] = strtok(s)
tok = how
s = are you
octave:97> [tok, s] = strtok(s)
tok = are
s = you
octave:98> [tok, s] = strtok(s)
tok = you
s =
octave:99> [tok, s] = strtok(s)
tok =
s =
octave:100>
We can easily do a while loop like this to scan through the whole thing:
s = 'hello world how are you';
while ~isempty(s),
[tok, s] = strtok(s);
fprintf('\n======\n');
disp(tok);
disp(s);
end;
output:
======
hello
world how are you
======
world
how are you
======
how
are you
======
are
you
======
you
octave:115>