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String parsing

 
Greenhorn
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Hi all,

I need a extract a substring from a given string

For example,

"\"LT-1-1-1:EVLT-F,EVLT-F:SWOVERRULE=NOOVERRULE,LSMPWR=UP,EQPTPROFNAME=VC8DEFAULT,,RSTCAUSE=POWERON,RSTTIME=70-01-01,00:03:45,RSTNUM=0,OAMIPADDR=0-0-0-0,PAIRNUMBER=0,DUALHOSTIPADDR=0-0-0-0,DUALHOSTLSMLOC=0-0:IS-NR,\""

Note the entire string comes in one single line and i need to take out the substring

SWOVERRULE=NOOVERRULE,LSMPWR=UP,EQPTPROFNAME=VC8DEFAULT,,RSTCAUSE=POWERON,RSTTIME=70-01-01,00:03:45,RSTNUM=0,OAMIPADDR=0-0-0-0,PAIRNUMBER=0,DUALHOSTIPADDR=0-0-0-0,DUALHOSTLSMLOC=0-0




Can anyone please help.
 
Ranch Hand
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If the delimiters always stay the same you could simply work with substring and indexOf ...
 
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It appears you need the string between the two colons. The methods Sebastian suggested can help you out.
 
lowercase baba
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There are several ways to do it, depending on what exactly you need to get.

As Sebastian said, if you know you always need characters x through y, you'd go about it one way.

if you know you need everything after "F:" and everything before ":IS-NR", you'd do something else.

It really all depends on HOW you can determine what you need. define the problem better, and you'll get better suggestions here.
 
Raja Mirrah
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I need everything between those two colons. but the problem here is may get a colon in between but i should take the string from second colon from starting till the last colon in the string.

Hope the above explanation is clear.

Note i do not know what string is coming all i have to do is extract from second colon from starting till last colon at the end of string.

Thanks all your quick response.
 
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Raja Mirrah wrote:I need everything between those two colons. but the problem here is may get a colon in between but i should take the string from second colon from starting till the last colon in the string.

Hope the above explanation is clear.



As already mentioned, with the indexOf() and / or lastIndexOf() methods, you should be able to find the two colons, and using substring(), you should be able to extract the string that you need.

Henry
 
Raja Mirrah
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Henry,

How to take the indexOf for second colon, i aware that the last colon can be taken using lastindexof method.
 
Henry Wong
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Raja Mirrah wrote:Henry,

How to take the indexOf for second colon, i aware that the last colon can be taken using lastindexof method.




Although not elegant, the easiest way is to call the indexOf() method twice -- the second time using an starting index that is after the index found in the first call.

Henry
 
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