java - bbcode 中十六进制颜色代码的正则表达式？

Question

我目前正在尝试测试匹配以下内容的正则表达式模式:

[#123456]

[#aabc36]

然后转换成HTML代码:

<FONT COLOR="#123456">

但是如果模式像这样:

[/#123456]

然后被替换为

</FONT>

我尝试了以下模式:

\\[#[A-Fa-f0-9]{6}\\]|\\[[A-Fa-f0-9]{3}\\]

但它失败了。

而我想要的是将提取的颜色十六进制代码获取到 HTML 字体颜色以进行替换。

下面是我的正则表达式替换方法:

public String replaceColor(String text  , String imageLocation ){

    StringBuffer imageBuffer = new StringBuffer (""); 

    String bbcode = "\\[#[A-Fa-f0-9]{6}\\]|\\[[A-Fa-f0-9]{3}\\]";

    Pattern pattern = Pattern.compile(Pattern.quote(bbcode));
    Matcher matcher = pattern.matcher(text);

    //populate the replacements map ...
    StringBuilder builder = new StringBuilder();
    int i = 0;
    while (matcher.find()) {

        //String orginal = replacements.get(matcher.group(1));
        imageBuffer.append("<FONT COLOR=\"#123456\">");
        String replacement = imageBuffer.toString();
        builder.append(text.substring(i, matcher.start()));

        if (replacement == null) {
            builder.append(matcher.group(0));
        } else {
            builder.append(replacement);
        }
        i = matcher.end();
    }

    builder.append(text.substring(i, text.length()));
    return builder.toString();
}

Answer 1

试试这个

    s = s.replaceAll("\\[#(\\w{6}|\\w{3})]", "<FONT COLOR=\"#$1>\">")
             .replaceAll("\\[/#(\\w{6}|\\w{3})]", "</FONT>");