Regular Expression for {

[scifluent]

String input = "DATA,{23.11,58.25},{23,33,43},{20070705,20070805}";

String[] splitLine = input.split(",{");

doesn't work. I've tried escaping the { by using

String[] splitLine = input.split(",\{");

but Eclipse tells me that { is not an escapable character.

Anybody have a suggestion???

Thanks!

 

[SadRed]

String input = "DATA,{23.11,58.25},{23,33,43},{20070705,20070805}";

String[] splitLine = input.split(",{");

doesn't work. I've tried escaping the { by using

String[] splitLine = input.split(",\{");

but Eclipse tells me that { is not an escapable character.

Anybody have a suggestion???

Thanks!

String[] splitLine = input.split(",\\{"); // regex engine gets ",\{"

 

[Daniel Pitts]

String input = "DATA,{23.11,58.25},{23,33,43},{20070705,20070805}";

String[] splitLine = input.split(",{");

doesn't work. I've tried escaping the { by using

String[] splitLine = input.split(",\{");

but Eclipse tells me that { is not an escapable character.

Anybody have a suggestion???

Thanks!

"\n" create a string with a newline, not a \ and then an n
"\\n" create a string with a single slash, and then an n.
The regex engine needs to parse a string, and it thinks that { is a
special charactor.
To tell the regex enginer that you want the literal {, you have to put
a \ before it in the string.
To get the \ before it in the string, you have to tell the Java
compiler to espace the \
Therefore what you want is "\\{".

Hope this verbose explaination helps cement the concept

Daniel.

 

[Lars Enderin]

Daniel Pitts skrev:

String input = "DATA,{23.11,58.25},{23,33,43},{20070705,20070805}";

String[] splitLine = input.split(",{");

doesn't work. I've tried escaping the { by using

String[] splitLine = input.split(",\{");

but Eclipse tells me that { is not an escapable character.

Anybody have a suggestion???

Thanks!

"\n" create a string with a newline, not a \ and then an n
"\\n" create a string with a single slash, and then an n.
The regex engine needs to parse a string, and it thinks that { is a
special charactor.
To tell the regex enginer that you want the literal {, you have to put
a \ before it in the string.
To get the \ before it in the string, you have to tell the Java
compiler to espace the \
Therefore what you want is "\\{".

Hope this verbose explaination helps cement the concept

You can often use [] to quote a special character: ",[{]".

 

[scifluent]

Thank you for all of your suggestions, both verbose and terse! I am
back on track!