String parsing with a delimiter
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Hello, I’m having a little problem parsing a string using a delimiter. It leave the delimiter attached to my string. Here’s my code:
str = ‘counter=10;count=7;’;
[token, remain] = strtok(str, '=');
switch token
case 'counter'
[token1, remain1] = strtok(remain, ';');
counter = str2double(token1);
end
token comes out right but remain has the value of “=10;count=7;” so when I do my next strtok my token1 has a value of “=10”’. Is there any way to parse to a delimiter and remove it from my string in matlab? Thanks.
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Matt Kindig
am 16 Mai 2012
To expand upon that, you can do something like this to loop through the entire string.
str = 'counter=10;count=7';
parts = regexp( str, '(?<arg>\w+)=(?<val>\d+);', 'names');
for k=1:length(parts),
arg = parts(k).arg;
switch arg,
case 'counter',
counter = str2double(parts(k).val);
case 'count',
%do something else.
%add additional cases as necessary.
end
end
1 Kommentar
Matt Kindig
am 16 Mai 2012
Glad I could be of assistance. Regular expressions are super-powerful once you learn them. I highly recommend looking them up in the Matlab help.
Weitere Antworten (1)
Matt Kindig
am 16 Mai 2012
What is your desired output? You might be able to do this easier with regular expressions.
doc regexp
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