regex - How do I make vim substitute repeat until there are no more matches? -

-

i have file text looks 

{\o h}{\o e}{\o l}{\o l}{\o o} {\o w}{\o o}{\o r}{\o l}{\o d}

i want make text this

{\o hello} {\o world}

there multiple tools can use solve problem, trying use vim substitutions. far, have

:%s/{\\o \(.\{-}\)}{\\o \(.\{-}\)}/{\\o \1\2}/g

the patterns here are

.\{-} match characters, non-greedy

{\\o .\{-}} match regex string {\o .*} being non-greedy .*

and \( ... \) creates capture groups backreferencing.

when run substitution once, 

{\o he}{\o ll}{\o o} {\o wo}{\o rl}{\o d}

i could run command 2 more times get

{\o hell}{\o o} {\o worl}{\o d}

and then

{\o hello} {\o world}

but love if there way 1 command, i.e., tell vim substitution keep passing on file until there no more matches. seems me ought possible.

does know magic need add achieve this? doesn't there's flag achieves this. maybe trick don't know labels?

sub-replace expression method

you can use sub-replace-expression, \=, execute second substitution inside replacement part of :s

:%s/\({\\o \s}\)\+/\='{\o '.substitute(submatch(0), '{\\o \(\s\)}', '\1', 'g').'}'/g

the basic idea capture "word", e.g. {\o h}{\o e}{\o l}{\o l}{\o o}, , second substitution on captured "word", submatch(0). second substitution remove starting {\o , trailing } via substitute(submatch(0), '{\\o \(\s\)}', '\1', 'g'). leaves letters, hello in example. once every letter extracted word add in starting {\o , trailing }.

for more see:

:h :s :h sub-replace-expresion :h substitute( :h submatch( :h literal-string :h /\s

two substitutions

you can use 2 separate substitutions. 1 remove {\o , }. other substitution add them in, word-wise time.

:%s/{\\o \(.\)}/\1/g :%s/\s+/{\\o &}/g

this arguably easier method assuming not have text mixed in other text should not in format.

you can in 1 command using |:

:%s/{\\o \(.\)}/\1/g|%s/\s+/{\\o &}/g

Comments

Post a Comment

Popular posts from this blog

mysql - Dreamhost PyCharm Django Python 3 Launching a Site -

-
i'm new python/django , created simple django website using pycharm. site works fine running on computer, i'm lost when comes taking site onto host (dreamhost). i'm able upload files correct directories fine, , believe made correct changes database on mysql. i'm not sure go there though. right now, page shows files rather site. direction appreciated. much! you should not run django application using python manage.py runserver on production. how run application on django depends on server (apache, nginx) want use for apache - https://docs.djangoproject.com/en/1.10/howto/deployment/wsgi/modwsgi/ for nginx - https://www.digitalocean.com/community/tutorials/how-to-serve-django-applications-with-uwsgi-and-nginx-on-ubuntu-14-04 the mysql database should, of course, exist , have correct credentials. or, if choose use sqlite, file should accessible, readable , writable www-user (may different depending on linux distributive)
Read more

java - Sending SMS with SMSLib and Web Services -

-
i have made rest web service send smss using hsdpa usb modem. using smslib in java send smss. every time web service invoked, create gateway start service, send message, stop service , remove gateway. takes 20 seconds each message. found starting service takes lot of time. part of code use send smss service.getinstance().addgateway(gateway); service.getinstance().startservice(); outboundmessage msg = new outboundmessage(phonenumber, message); if (service.getinstance().sendmessage(msg)) { result = "message sent successfully!!"; } else { result = "could not send message."; } service.getinstance().stopservice(); service.getinstance().removegateway(gateway);//remove gateway is there way can start service once if not started , use send message when ever web service invoked? why dont group messages , send in 1 go? service.getinstance().sendmessages(messa...
Read more

java - How to resolve The method toString() in the type Object is not applicable for the arguments (InputStream) -

-
i'm trying read json file local machine. @path("/") public class jsonparsing { file f = new file("file.json"); if (f.exists()){ inputstream = new fileinputstream("file.json"); string jsontxt = ioutils.tostring(is); system.out.println(jsontxt); jsonobject json = new jsonobject(jsontxt); string = json.getstring("1000"); system.out.println(a); } } but i'm getting error in tostring() method. possible read .txt file containing json object local machine? if possible, how done? firstly: whenever ask question- add imports well. secondly: yes possible read .txt file containing json object. steps: 1. add maven dependency in pom.xml - <dependency> <groupid>com.googlecode.json-simple</groupid> <artifactid>json-simple</artifactid> <version>1.1.1</version> </dependency> or add jar of dependency. 2.import...
Read more