Parsing quoted text in java

Question

Is there an easy way to parse quoted text as a string in java? I have lines like this for parsing:

author="Tolkien, J.R.R." title="The Lord of the Rings"
publisher="George Allen & Unwin" year=1954 

and all I want is Tolkien, JRR, The Lord of the Rings, George Allen and Unwin, 1954 as strings.

Answer 1

You can use regex like

"(.+)"

It will match any character between quotation marks. In Java:

Pattern p = Pattern.compile("\\"(.+)\\"";
Matcher m = p.matcher("author=\"Tolkien, J.R.R.\"");
while(matcher.find()){
  System.out.println(m.group(1));      
}

Note that group (1) is used, this is the second match, the first, group (0), is a full string with quotes

You can also use a substring to select everything except the first and last char:

String quoted = "author=\"Tolkien, J.R.R.\"";
String unquoted;    
if(quoted.indexOf("\"") == 0 && quoted.lastIndexOf("\"")==quoted.length()-1){
    unquoted = quoted.substring(1, quoted.lenght()-1);
}else{
  unquoted = quoted;
}

Answer 2

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