ubb2.java

java编写的简易留言本

package anni.tools;

import java.util.regex.Matcher;
import java.util.regex.Pattern;


/**
 * 为了比较性能，我写了这个UBB2.
 * 这里会根据自己的理解，实现相同的功能，但会进行相应的性能比较
 * 先以10000次转换为例
 * @since 2005-12-28 21:11
 * @author Lingo
 * @version 1.0
 */
public class UBB2 {
    /**
     * [img]匹配模式.
     */
    private Pattern imgPattern = Pattern.compile("(\\[img\\])(.+?)(\\[\\/img\\])",
            2);

    /**
     * [invert]匹配模式.
     */
    private Pattern invertPattern = Pattern.compile("(\\[invert\\])(.+?)(\\[\\/invert\\])",
            2);

    /**
     * [xray]匹配模式.
     */
    private Pattern xrayPattern = Pattern.compile("(\\[xray\\])(.+?)(\\[\\/xray\\])",
            2);

    /**
     * [url]匹配模式.
     */
    private Pattern urlPattern = Pattern.compile("(\\[url\\])(.+?)(\\[\\/url\\])",
            2);

    /**
     * [url=]匹配模式.
     */
    private Pattern txtUrlPattern = Pattern.compile("(\\[url=)([^\\]]+)(\\])(.+?)(\\[\\/url\\])",
            2);

    /**
     * [email]匹配模式.
     */
    private Pattern emailPattern = Pattern.compile("(\\[email\\])(.+?)(\\[\\/email\\])",
            2);

    /**
     * [email=]匹配模式.
     */
    private Pattern txtEmailPattern = Pattern.compile("(\\[email=)([^\\]]+)(\\])(.+?)(\\[\\/email\\])",
            2);

    /**
     * [align=]匹配模式.
     */
    private Pattern alignPattern = Pattern.compile("(\\[align=)([^\\]]+)(\\])(.+?)(\\[\\/align\\])",
            2);

    /**
     * [fly]匹配模式.
     */
    private Pattern flyPattern = Pattern.compile("(\\[fly\\])(.+?)(\\[\\/fly\\])",
            2);

    /**
     * [move]匹配模式.
     */
    private Pattern movePattern = Pattern.compile("(\\[move\\])(.+?)(\\[\\/move\\])",
            2);

    /**
     * [b]模式匹配.
     */
    private Pattern boldPattern = Pattern.compile("(\\[b\\])(.+?)(\\[\\/b\\])",
            2);

    /**
     * [i]匹配模式.
     */
    private Pattern slopePattern = Pattern.compile("(\\[i\\])(.+?)(\\[\\/i\\])",
            2);

    /**
     * [u]匹配模式.
     */
    private Pattern downLinePattern = Pattern.compile("(\\[u\\])(.+?)(\\[\\/u\\])",
            2);

    /**
     * [sup]匹配模式.
     */
    private Pattern supPattern = Pattern.compile("(\\[sup\\])(.+?)(\\[\\/sup\\])",
            2);

    /**
     * [sub]匹配模式.
     */
    private Pattern subPattern = Pattern.compile("(\\[sub\\])(.+?)(\\[\\/sub\\])",
            2);

    /**
     * [s]匹配模式.
     */
    private Pattern delLinePattern = Pattern.compile("(\\[s\\])(.+?)(\\[\\/s\\])",
            2);

    /**
     * [fliph]匹配模式.
     */
    private Pattern fliphPattern = Pattern.compile("(\\[fliph\\])(.+?)(\\[\\/fliph\\])",
            2);

    /**
     * [flipv]匹配模式.
     */
    private Pattern flipvPattern = Pattern.compile("(\\[flipv\\])(.+?)(\\[\\/flipv\\])",
            2);

    /**
     * [list=]匹配模式.
     */
    private Pattern olPattern = Pattern.compile("(\\[list=)([^\\]]+)(\\])(.+?)(\\[\\/list\\])",
            2);

    /**
     * [list]匹配模式.
     */
    private Pattern ulPattern = Pattern.compile("(\\[list\\])(.+?)(\\[\\/list\\])",
            2);

    /**
     * [shadow]匹配模式.
     */
    private Pattern shadowPattern = Pattern.compile("(\\[shadow=)"
            + "([0-9]+)([,])([^,]+)([,])([^\\]]+)(\\])(.+?)(\\[\\/shadow\\])",
            2);

    /**
     * [glow]匹配模式.
     */
    private Pattern glowPattern = Pattern.compile("(\\[glow=)"
            + "([0-9]+)([,])([^,]+)([,])([^\\]]+)(\\])(.+?)(\\[\\/glow\\])",
            2);

    /**
     * [blur]匹配模式.
     */
    private Pattern blurPattern = Pattern.compile("(\\[blur=)"
            + "([0-9]+)([,])([^,]+)([,])([^\\]]+)(\\])(.+?)(\\[\\/blur\\])",
            2);

    /**
     * [quote]匹配模式.
     */
    private Pattern quotePattern = Pattern.compile("(\\[quote\\])(.+?)(\\[\\/quote\\])",
            2);

    /**
     * [code]匹配模式.
     */
    private Pattern codePattern = Pattern.compile("(\\[code\\])(.+?)(\\[\\/code\\])",
            2);

    /**
     * [size]匹配模式.
     */
    private Pattern txtSizePattern = Pattern.compile("(\\[size=)([^\\]]+)(\\])(.+?)(\\[\\/size\\])",
            2);

    /**
     * [swf=]匹配模式.
     */
    private Pattern swfPattern = Pattern.compile("(\\[swf=)([0-9]+)([,])([0-9]+)(\\])(.+?)(\\[\\/swf\\])",
            2);

    /**
     * [sk=]匹配模式.
     */
    private Pattern skPattern = Pattern.compile("(\\[sk=)([0-9]+)([,])([0-9]+)(\\])(.+?)(\\[\\/sk\\])",
            2);

    /**
     * [rm=]匹配模式.
     */
    private Pattern rmPattern = Pattern.compile("(\\[rm=)([0-9]+)([,])([0-9]+)(\\])(.+?)(\\[\\/rm\\])",
            2);

    /**
     * [mp=]匹配模式.
     */
    private Pattern mpPattern = Pattern.compile("(\\[mp=)([0-9]+)([,])([0-9]+)(\\])(.+?)(\\[\\/mp\\])",
            2);

    /**
     * [qt=]匹配模式.
     */
    private Pattern qtPattern = Pattern.compile("(\\[qt=)([0-9]+)([,])([0-9]+)(\\])(.+?)(\\[\\/qt\\])",
            2);

    /**
     * [sound=]匹配模式.
     */
    private Pattern soundPattern = Pattern.compile("(\\[sound\\])(.+?)(\\[\\/sound\\])",
            2);

    /**
     * 运行所有的替换方法.
     * @since 2005-12-30 19:38
     * @author Lingo
     * @param sourceIn 输入
     * @return String 输出
     */
    public final String reAll(final String sourceIn) {
        String source = sourceIn;
        source = reImg(source);
        source = reUrl(source);
        source = reFly(source);
        source = reEmail(source);
        source = reBold(source);
        source = reSlope(source);
        source = reDownLine(source);
        source = reMove(source);
        source = reTxtUrl(source);
        source = reTxtEmail(source);
        source = reAlign(source);
        source = reTxtSize(source);
        source = reQuote(source);
        source = reCode(source);
        source = reSup(source);
        source = reSub(source);
        source = reDelLine(source);
        source = reFliph(source);
        source = reFlipv(source);
        source = reShadow(source);
        source = reGlow(source);
        source = reBlur(source);
        source = reSwf(source);
        source = reRm(source);
        source = reMp(source);
        source = reQt(source);
        source = reSk(source);
        source = reSound(source);
        source = reInvert(source);
        source = reXray(source);
        source = reOL(source);
        source = reUL(source);
        source = reLI(source);

        return source;
    }

    /**
     * 把source中，所有的src都替换成dest.
     * @since 2005-12-28 22:57
     * @author Lingo
     * @param sourceIn 输入
     * @param src 查找什么
     * @param dest 替换成什么
     * @return String 返回结果
     */
    public final String replace(final String sourceIn, final String src,
        final String dest) {
        String source = sourceIn;
        StringBuffer result = new StringBuffer();
        int length = src.length();
        int index;

        while ((index = source.indexOf(src)) != -1) {
            result.append(source.substring(0, index)).append(dest);
            source = source.substring(index + length);
        }

        result.append(source);

        return result.toString();
    }

    /**
     * 替换[img]标签.
     * @since 2005-12-29 20:29
     * @author Lingo
     * @param sourceIn 输入
     * @return String 输出
     */
    public final String reImg(final String sourceIn) {
        String source = sourceIn;
        Matcher imgMatcher = imgPattern.matcher(source);
        boolean result = imgMatcher.find();

        String group2 = null;

        if (result) {
            group2 = imgMatcher.group(2);
        }

        while (result) {
            source = replace(source, "[img]" + group2 + "[/img]",
                    "<a href=\"" + group2
                    + "\" target=\"_blank\" title=\"browse picture\"><img src=\""
                    + group2
                    + "\" border=\"0\" onload=\"javascript:if(this.width>screen.width-333)"
                    + "this.width=screen.width-333;\" style=\"cursor:hand\"></a>");
            result = imgMatcher.find();
        }

        return source;
    }

    /**
     * 替换[invert]标签.
     * @since 2005-12-29 21:03
     * @author Lingo
     * @param sourceIn 输入
     * @return String 输出
     */
    public final String reInvert(final String sourceIn) {
        String source = sourceIn;
        Matcher invertMatcher = invertPattern.matcher(source);
        boolean result = invertMatcher.find();

        String group2 = null;

        if (result) {
            group2 = invertMatcher.group(2);
        }

        while (result) {
            source = replace(source, "[invert]" + group2 + "[/invert]",
                    "<table style=\"filter:invert\"><img src=\"" + group2
                    + "\" border=\"0\"></table>");
            result = invertMatcher.find();
        }

        return source;
    }

    /**
     * 替换[xray]标签.
     * @since 2005-12-29 21:14
     * @author Lingo
     * @param sourceIn 输入
     * @return String 输出
     */
    public final String reXray(final String sourceIn) {
        String source = sourceIn;
        Matcher xrayMatcher = xrayPattern.matcher(source);
        boolean result = xrayMatcher.find();

        String group2 = null;

        if (result) {
            group2 = xrayMatcher.group(2);
        }

        while (result) {
            source = replace(source, "[xray]" + group2 + "[/xray]",
                    "<table style=\"filter:xray\"><img src=\"" + group2
                    + "\" border=\"0\"></table>");
            result = xrayMatcher.find();
        }

        return source;
    }

    /**
     * 替换[url]标签.
     * @since 2005-12-29 21:21
     * @author Lingo
     * @param sourceIn 输入
     * @return String 输出
     */
    public final String reUrl(final String sourceIn) {
        String source = sourceIn;
        Matcher urlMatcher = urlPattern.matcher(source);
        boolean result = urlMatcher.find();

        String group2 = null;

        if (result) {
            group2 = urlMatcher.group(2);
        }

        while (result) {
            source = replace(source, "[url]" + group2 + "[/url]",
                    "<a href=\"" + group2 + "\" target=\"_blank\">"
                    + group2 + "</a>");
            result = urlMatcher.find();
        }

        return source;
    }

    /**
     * 替换[url=]标签.
     * @since 2005-12-29 21:40
     * @author Lingo
     * @param sourceIn 输入
     * @return String 输出
     */
    public final String reTxtUrl(final String sourceIn) {
        String source = sourceIn;
        Matcher txtUrlMatcher = txtUrlPattern.matcher(source);
        boolean result = txtUrlMatcher.find();

        String group2 = null;
        String group4 = null;

        if (result) {
            group2 = txtUrlMatcher.group(2);
            group4 = txtUrlMatcher.group(4);
        }

        while (result) {
            source = replace(source,
                    "[url=" + group2 + "]" + group4 + "[/url]",
                    "<a href=\"" + group2
                    + "\" target=\"_blank\" title=\"" + group4 + "\">"
                    + group4 + "</a>");
            result = txtUrlMatcher.find();
        }

        return source;
    }

    /**
     * 替换[email]标签.