2番目の位置にドットの後にbrタグを置く方法

Question

.の発見後に<br>を2番目の位置に配置したいと思っています。

str = "Lorem ipsum amet. consectetur adipisicing elit. sed do eiusmod magna aliqua. Ut enim ad minim veniam. Lorem ipsum amet. consectetur adipisicing elit. sed do eiusmod magna aliqua. Ut enim ad minim veniam." 

期待される結果：私はこのスクリプトを使用しようと

str = "Lorem ipsum amet. consectetur adipisicing elit. <br> sed do eiusmod magna aliqua. Ut enim ad minim veniam. Lorem ipsum amet. <br> consectetur adipisicing elit. sed do eiusmod magna aliqua. <br> Ut enim ad minim veniam." 

：

s = "During a November 2014 trip to Los Angeles. Boston-based Snapchat creator. Mike Platco stopped by Snap's Venice. CA offices to say hello." 
index = [i for i,c in enumerate(s) if c=='.'] 
data = [] 
for x in index: 
    text = s[:x*2].replace('. ', '. <br>') 
    data.append(text) 

print data 

結果：

['During a November 2014 trip to Los Angeles. <br>Boston-based Snapchat creator. <br>Mike Plat', "During a November 2014 trip to Los Angeles. <br>Boston-based Snapchat creator. <br>Mike Platco stopped by Snap's Venice. <br>CA offices to say hello.", "During a November 2014 trip to Los Angeles. <br>Boston-based Snapchat creator. <br>Mike Platco stopped by Snap's Venice. <br>CA offices to say hello.", "During a November 2014 trip to Los Angeles. <br>Boston-based Snapchat creator. <br>Mike Platco stopped by Snap's Venice. <br>CA offices to say hello."] 

Answer 1

正規表現の心にスプリングが、あなたも使用することができます良い古い結合と分割。

source = "Lorem ipsum amet. consectetur adipisicing elit. sed do eiusmod magna aliqua. Ut enim ad minim veniam. Lorem ipsum amet. consectetur adipisicing elit. sed do eiusmod magna aliqua. Ut enim ad minim veniam." 
#break it up into a list separated by dots 
split_src = source.split(".") 
#loop through the list modifying every second one 
for i in range(2, len(split_src)-1, 2): 
    split_src[i] = "<br>" + split_src[i] 
#join the lines up again with a dot 
result = ".".join(split_src) 

確かに、何のチェックはあなたのアイデアを得る必要があります（ソースはわずか2つのフレーズを持っていた場合は、[2]インデックス作成が失敗することを意味する）2つの以上の句があるかどうかを確認するには、上記はありません。