使用CFML正则移除带任意属性的<FONT>及闭合标签

Got it, let's sort out your regex problem! Your current attempt only catches the start of opening <FONT> tags, but misses the full tag (including attributes and closing >) and all the </FONT> closing tags entirely. Here's how to fix it:

The Correct Regex #

We need to match two distinct patterns to cover all cases:

1. Any opening <FONT> tag with any attributes and values (no matter how complex)
2. Any closing </FONT> tag

Since HTML tags are case-insensitive (e.g., <font> or <Font> should also be removed), we'll add a case-insensitive modifier to make the regex robust.

Regex Pattern: #

(?i)<FONT[^>]*>|</FONT>

Breakdown of the Pattern: #

• (?i): Enables case-insensitive matching (catches <font>, <Font>, <FONT>, etc.)
• <FONT[^>]*>: Matches the full opening tag:
  • <FONT: Starts with the opening tag name
  • [^>]*: Matches any character except > (this covers all attributes and their values, no matter how long or complex)
  • >: Ends the opening tag
• |: Acts as an OR operator to match either the opening tag or the closing tag
• </FONT>: Matches the exact closing tag (the (?i) modifier makes this case-insensitive too)

ColdFusion Code Implementation #

Since you're using ColdFusion's rereplace function, here's the working code:

loc.result = rereplace(arguments.htmlString, "(?i)<FONT[^*\\&gt;]", "", "ALL");

• The "ALL" flag ensures all occurrences are replaced (not just the first one)
• The (?i) modifier inside the regex handles case insensitivity for tag names, so it works regardless of how the tags are capitalized

Testing With Your Example Input #

Let's apply this to your sample HTML snippet:

Original Input: #

<LI><FONT size=2 face=Verdana><FONT size=2 face=Verdana><STRONG>random text</STRONG></FONT></LI>

After Replacement: #

<LI><STRONG>random text</STRONG></LI>

This correctly removes both nested opening <FONT> tags and the closing </FONT> tag, matching your desired output perfectly.

Why Your Original Regex Failed #

Your original pattern \\<FONT[^*\\&gt; had two critical issues:

1. The character set [^*\\> was incorrectly defined — you meant to match everything up to the closing >, which should be [^>]* (match any character except > zero or more times)
2. It didn't include a pattern to match the closing </FONT> tags at all

内容的提问来源于stack exchange，提问作者Phillip Pantaleano