刪除括號但保留CDATA不變

Question

是否可以刪除內部的括號但保留CDATA標記不變？怎麼樣？

<![CDATA[ 

This is some Text with [brackets inside] 

]]> 

編輯：我用PHP，對不起。

編輯二：我看到我可以使用lookaround斷言，但有點不知道如何做的AND連接器，可能是在CDATA之前或之後，以及如何連接最後兩個塊。

Answer 1

這裏有您需要的正則表達式：

$subject = 'your_input_text'; 
$matchPattern = '/(<!\[CDATA\[[^[]*)\[(.*?)\]([^\]]*\]\]>)/s'; 
$replacePattern = '$1$2$3'; 
$result = preg_replace($matchPattern, $replacePattern, $subject); 

你可以看到的結果here。

而這裏的正則表達式的解釋：

# (<!\[CDATA\[[^\[]*)\[(.*?)\]([^\]]*\]\]>) 
# 
# Options: dot matches newline 
# 
# Match the regular expression below and capture its match into backreference number 1 «(<!\[CDATA\[[^\[]*)» 
# Match the characters 「<!」 literally «<!» 
# Match the character 「[」 literally «\[» 
# Match the characters 「CDATA」 literally «CDATA» 
# Match the character 「[」 literally «\[» 
# Match any character that is NOT a [ character «[^\[]*» 
#  Between zero and unlimited times, as many times as possible, giving back as needed (greedy) «*» 
# Match the character 「[」 literally «\[» 
# Match the regular expression below and capture its match into backreference number 2 «(.*?)» 
# Match any single character «.*?» 
#  Between zero and unlimited times, as few times as possible, expanding as needed (lazy) «*?» 
# Match the character 「]」 literally «\]» 
# Match the regular expression below and capture its match into backreference number 3 «([^\]]*\]\]>)» 
# Match any character that is NOT a ] character «[^\]]*» 
#  Between zero and unlimited times, as many times as possible, giving back as needed (greedy) «*» 
# Match the character 「]」 literally «\]» 
# Match the character 「]」 literally «\]» 
# Match the character 「>」 literally «>» 

Answer 2

// uses MFC CString syntax but any string library will have the same essential functions 

CString myCDATA; 
CString workString; 
int iTagStart; 

iTagStart = String.Find("<![CDATA[") + 9 // 9 = length of "<![CDATA[" 
// get the string without the endpoints 
workString = CString.Mid(iTagStart,myCDATA.GetLength() - 9 - 3); // 3 = length of "]]>" 
workString.Replace("[",""); 
workString.Replace("]",""); 
// reassemble 
myCDATA = "<![CDATA[" + workString + "]]>";