python - Modifying a Regex Expression -


i have several strings match expressions want match , extract 2 words after prepositions along preps themselves.. , job . need modify regex such in case word "to" appears after preposition , regex extract preposition followed 3 words(instead of default 2 words..)
here's example elaborate:

str1 = " place near oberoi mall" str2 = " place next oberoi mall"

expected results:-
res1 = "near oberoi mall" #extract 2 words after prep along (default case)
res2 = "next oberoi mall" #extract prep along 3 words after (in case "to" comes after preposition)

what have done? 

def landmark(str):     preps = ['near','off','next','across','opposite','behind','above','ahead']     words = "|".join(re.escape(line.rstrip()) line in preps)     p1 = re.compile(r'(?:{})\s(\w+|\d+\w+)\s\w+'.format(words))     q =re.search(p1,str)     if q none:        return ""     else:         return q.group()

my preps in list called preps in returning 2 words 

res1 = "near oberoi mall"

res2 = "next oberoi" #this becomes incomplete

what did try?
here: 

p1 = re.compile(r'(?:{}(?:to)?)\s(\w+|\d+\w+)\s\w+'.format(words))

*notice optional (?:to)? added it. there's small problem.. please help.

this worked example:

>>> p1 = re.compile(r'(?:%s)\s((?:to\s)?(\w+|\d+\w+)\s\w+)' % words) >>> dd = re.search(p1,str1) >>> dd.group() 'near oberoi mall' >>> cc = re.search(p1,str2) >>> cc.group() 'next oberoi mall'

Comments

Post a Comment

Popular posts from this blog

get url and add instance to a model with prefilled foreign key :django admin -

Image
i have page in each contest shown in row. each row contains contest id , link other model names have foreign key contest. news model: class news(models.model): title = models.charfield(max_length=50, null=true) description = models.textfield() time = models.timefield( default= datetime.datetime.now().time()) contest = models.foreignkey(contest) i want use admin adding , changing these models. want when user clicks on 'news' has foreign key contest id=1, shows list of news value foreign key. use {% instance in instances %} <tr class="{% cycle 'row1' 'row2' %}"> <td>{{ instance.title }}</td> <td>{{ instance.starttime }}</td> <td>{{ instance.timespan }}</td> <td>{{ instance.date }}</td> <td><a href="/adm...
Read more

css - Make div keyboard-scrollable in jQuery Mobile? -

from can tell, although jquery-mobile-powered pages can contain divs overflow set scroll or auto, , these divs can scrolled one-screen bar or mouse wheel, cannot scrolled using arrow keys, page-up/page-down, or home/end. instead, official "page" div (with data-role="page") absorbs input. perhaps other divs can't acquire focus, i'm not sure. is there way around this? edit: jsfiddle of simple example: https://jsfiddle.net/qogz0shx/ <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.4/jquery.min.js"></script> <script src="https://ajax.googleapis.com/ajax/libs/jquerymobile/1.4.5/jquery.mobile.min.js"> </script> <link rel="stylesheet" href="https://code.jquery.com/mobile/1.4.5/jquery.mobile-1.4.5.css"/> <style> #outer { overflow:scroll; height: 50vh; width: 50vw; } #inner { height: 500vh; width: 500vw; } ...
Read more

android - Keyboard hides my half of edit-text and button below it even in scroll view -

i having trouble keyboard covers edit-text , half of button in scroll view. here's layout , please tell me how should resolve problem. many questions on topic none of them s working me. <?xml version="1.0" encoding="utf-8"?> <linearlayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:background="@drawable/bg" android:layout_height="match_parent"> <scrollview android:layout_width="match_parent" android:fillviewport="true" android:layout_height="match_parent"> <relativelayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical"> <linearlayout android:layout_width="match_parent" android:layout_height="w...
Read more