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[java] Parsing methods??

General and Gameplay Programming Programming

Started by sushi-one January 23, 2004 12:56 PM

5 comments, last by sushi-one 20 years, 2 months ago

sushi-one

100

Author

January 23, 2004 12:56 PM

any good advices on how I can make a really simple parsing engine?? just like searching in a file after a word and read its value: value = 21 value2 = "a fine string" value3 = 234.0 Hans-Petter

Hans-Petter Harveg

simb

168

January 24, 2004 01:54 AM

Well, assuming you have already read in the line to be parsed, then two ways that come to mind to get the value after the '=' are

a = "value=21"thenString [] b = a.split( "=", 2); // b[1] is everything after the '='orString b = a.substring( a.indexOf( '=') +1); // b is everything after the '='

[edited by - simb on January 24, 2004 2:54:53 AM]

sushi-one

100

Author

January 24, 2004 07:53 AM

thanks a lot, didn''t know about those methods!

but do java have any methods like atoi (array to int), atof or something? so I can convert the string to the value I want it to be..

Hans-Petter

Hans-Petter Harveg

simb

168

January 24, 2004 08:10 AM

Yep,
Integer.parseInt( "12345")
returns the integer 12345, and there are similar ones for Double, Float, Short, Long, Byte, Boolean and maybe some more (just look in the JavaDocs for those classes for the exact method names)