ruby - How do I write a regex that eliminates the space between a number and a colon? -

-

i want replace space between 1 or 2 numbers , colon followed space, number, or end of line. if have string like,

line = "   0 : 28 : 37.02"

the result should be:

"   0: 28: 37.02"

i tried below:

line.gsub!(/(\a|[ \u00a0|\r|\n|\v|\f])(\d?\d)[ \u00a0|\r|\n|\v|\f]:(\d|[ \u00a0|\r|\n|\v|\f]|\z)/, '\2:\3') # => "  0: 28 : 37.02"

it seems match first ":", second ":" not matched. can't figure out why.

excluding third digit can done negative lookback, since other 1 or 2 digits of variable length, cannot use positive lookback part.

line.gsub(/(?<!\d)(\d{1,2}) (?=:[ \d\$])/, '\1') # => "   0: 28: 37.02"

Comments

Post a Comment

Popular posts from this blog

ios - MKAnnotationView layer is not of expected type: MKLayer -

-
Image
so code works fine logger riddled message. there way rid of or suppress it? postannotation.swift class postannotation: mkpointannotation { //mark: properties let post: post //mark: initialization init(post: post) { self.post = post super.init() self.coordinate = cllocationcoordinate2d(latitude: post.latitude, longitude: post.longitude) self.title = post.title self.subtitle = post.timestring() } } adding annotation let annotation = postannotation(post: post) self.map.addannotation(annotation) func mapview func mapview(_ mapview: mkmapview, viewfor annotation: mkannotation) -> mkannotationview? { if annotation mkuserlocation { return nil } var annotationview = mapview.dequeuereusableannotationview(withidentifier: "pin") as? mkpinannotationview if annotationview == nil { annotationview = mkpinannotationview(annotation: annotation, reuseidentifier: "pin")
Read more

ZeroMQ on Windows, with Qt Creator -

-
i have installed zmq link given below on windows 7. http://zeromq.org/distro:microsoft-windows 1) have c++ project in qt-creator , i'm using zmq c++ binding (zhelpers.hpp etc). 2) have added .lib installed zmq folder qtcreator 3) while compiling, compiler looks _imp__zmq_verion, in .dll files present in .lib have __imp_zmq_version. 4) causing undefined reference zmq_version. anyone else faced problem , has solution ?
Read more

unity3d - Unity SceneManager.LoadScene quits application -

-
i have 2 different scenes 1 named 'main' , other 'game' both added scenes in load. when use scenemanager.loadscene("game"); works no problem when tried return main scene code if (input.getkeydown (keycode.escape)) { scenemanager.loadscene("main"); } strangely game quits. thanks. sorry interruption. somewhere on other script found code. if (input.getkeydown (keycode.escape)) { application.quit (); } that's bad, know...
Read more