Java正则表达式-不为JTextPane中的所有匹配单词着色

问题描述

我想给所有与赞词匹配的单词上色

I want coloring all word that matching with commment

public WarnaText(JTextPane source) throws BadLocationException
{
    source.setForeground(Color.BLACK);
    Matcher komen=Pattern.compile("//.+").matcher(source.getText());
    while(komen.find())
    {
        String getkomen=komen.group();
        StyleContext sc = StyleContext.getDefaultStyleContext();
        AttributeSet aset = sc.addAttribute(SimpleAttributeSet.EMPTY, StyleConstants.Foreground, Color.RED);
        aset = sc.addAttribute(aset, StyleConstants.FontFamily, "Concolas");

        int start = source.getText().indexOf(getkomen);
        source.select(start,start + getkomen.length());

        source.setCharacterAttributes(aset, false);
    }
}

但是，在包含很多注释的JTextPane上，有些单词没有上色

but, it some words are not colored at JTextPane which contains many comments

推荐答案

您的代码检索注释文本(getkomen=komen.group())，然后搜索该文本的 first 实例(...indexOf(getkomen)) .如果您有多个相同的注释，则仅第一个注释将被上色.

Your code retrieve the comment text (getkomen=komen.group()), then searches for the first instance of that text (...indexOf(getkomen)). If you have multiple identical comments, only the first one will be colored.

Matcher 将使用 start() 和 end() .您应该只使用那些.

The Matcher will give you the position of the found text using start() and end(). You should just use those.

Matcher komen=Pattern.compile("//.+").matcher(source.getText());
while(komen.find())
{
    StyleContext sc = StyleContext.getDefaultStyleContext();
    AttributeSet aset = sc.addAttribute(SimpleAttributeSet.EMPTY, StyleConstants.Foreground, Color.RED);
    aset = sc.addAttribute(aset, StyleConstants.FontFamily, "Concolas");

    source.select(komen.start(), komen.end());

    source.setCharacterAttributes(aset, false);
}

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