java - Regex with -, ::, ( and ) -

-

i need split string

(age-is-25::or::last_name-is-qa6)::and::(age-is-20::or::first_name-contains-test)

into

string[0] = (age-is-25::or::last_name-is-qa6)

string[1] = and

string[2] = (age-is-20::or::first_name-contains-test)

i tried writing many regex expressions, nothing works expected.

using following regex, matcher.groupcount() returns 2 assigning results arraylist returns null elements.

pattern pattern = pattern.compile("(\\)::)?|(::\\()?");

i tried split using ):: or ::(.

i know regex looks stupid, being beginner best write.

you can use positive lookahead , lookbehind match first , last parentheses.

string str = "(age-is-25::or::last_name-is-qa6)::and::(age-is-20::or::first_name-contains-test)";  (string s : str.split("(?<=\\))::|::(?=\\()"))     system.out.println(s);

outputs:

(age-is-25::or::last_name-is-qa6) , (age-is-20::or::first_name-contains-test)

just note however: seems parsing kind of recursive language. regular expressions not @ doing this. if doing advanced parsing recommend @ other parsing methods.


Comments

Post a Comment

Popular posts from this blog

django - How can I change user group without delete record -

-
on website user have 1 group. , user can change group. it's made user.groups.clear() and user.groups.add(new_group) but it's not efficient, because there 2 sql query: delete, insert. how can change group update query? user , group related each other using manytomanyfield . means intersection table exists relating both entities, , if don't specify model map (using through attribute) django creates 1 you. looking @ sources django.contrib.auth.models see that's case. fortunatly, can access intermediary model using through attribute of manager (in case, user.groups.through ). can use regular model. example: >>> alice = user.objects.create_user('alice', 'alice@example.com', 'alicepw') >>> employee = group.objects.create(name='employee') >>> manager = group.objects.create(name='manager') >>> alice.groups.add(employee) >>> alice.groups.all() [<group: employee...
Read more

java - Need to add SOAP security token -

-
i need set custom soap header attribute on jax-ws generated webservice client. case webservice calls must go through proxy server requiring specific token (recieved web request header) present in soap request header. e.g.: 1 carserviceservice service = null; 2 service = new carserviceservice(new url(url), new qname(qname); 3 carserviceendpoint port = service.getcarserviceport(); it seems in line 3 wsdl retrieved , call fails due missing security token. 1 point direction on how done? a detailed example has been mentioned here: creating , deploying jax-ws web service on tomcat 6 this article shows how create , use security token .
Read more

java - EclipseLink JPA Object is not a known entity type -

-
i have strange problem eclipselink , object want persist. have 1 object (keypointlistimpl) stores object keypointimpl in list. persisting keypointimpl objects works great if try persist keypointlistimpl object java.lang.illegalargumentexception says object keypointimpl isn't known entity type. here keypointimpl code: @entity @table(name="keypoints") public class keypointimpl implements keypoint { @id @generatedvalue(strategy = generationtype.identity) private int id; @enumerated(enumtype.string) private detectortype keypointtype; private float x; private float y; private float size; private float angle; private float response; private int octave; private int classid; ... } here keypointlistimpl code: @entity @table(name="keypointlists") public class keypointlistimpl implements keypointlist { @id @generatedvalue(strategy = generationtype.identity) private int id; @onetoone(cascade={ca...
Read more