Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

public class Main {
    /*** Removes HTML tags from a string
     * @param s The string to remove HTML tags from
     */
    public static String removeHTML(final String text, boolean replaceNewlines) {

        if (null == text)
            return null;

        String s = text;

        // If we have an opener and no closer, then
        // it ain't HTML and we shouldn't break it
        int opener = s.indexOf("<");
        int closer = s.indexOf(">");
        if (opener != -1 && closer == -1)
            return s;

        int i = opener;
        while (i != -1) {
            // Find end pos
            int e = s.indexOf(">", i);
            if (e == -1)
                e = s.length();
            String tag = s.substring(i + 1, e);
            // Strip from the string
            s = s.substring(0, i) + (replaceNewlines && tag.equals("br") ? "\n" : "")
                    + (e < s.length() ? s.substring(e + 1, s.length()) : "");

            // Find again
            i = s.indexOf("<");
        }

        // Replace known sequences with characters
        s = replace(s, "&nbsp;", " ");
        s = replace(s, "&nbsp", " ");
        s = replace(s, "&amp;", " ");
        s = replace(s, "&lt;", "<");
        s = replace(s, "&gt;", ">");

        // Only compress whitespace if HTML was found
        if (text.equals(s))
            return s;

        // Compress whitespace
        s = s.trim();
        StringBuffer o = new StringBuffer();
        boolean lastWasSpace = false;
        for (i = 0; i < s.length(); i++) {
            if (s.charAt(i) == ' ') {
                if (!lastWasSpace) {
                    lastWasSpace = true;
                    o.append(" ");
                }
            } else {
                o.append(s.substring(i, i + 1));
                lastWasSpace = false;
            }
        }
        s = o.toString();

        return s;
    }

    public static String removeHTML(String s) {
        return removeHTML(s, false);
    }

    /** Looks in findin for all occurrences of find and replaces them with replacewith 
     * @param findin The string to find occurrences in
     * @param find The string to find
     * @param replacewith The string to replace found occurrences with
     * @return A string with all occurrences of find replaced.
     */
    public static String replace(String findin, String find, String replacewith) {

        StringBuffer sb = new StringBuffer(findin);
        int i = 0;
        try {
            while (i <= sb.length() - find.length()) {
                if (sb.substring(i, i + find.length()).equalsIgnoreCase(find)) {
                    sb.replace(i, i + find.length(), replacewith);
                }
                i++;
            }
        } catch (StringIndexOutOfBoundsException e) {
            // We hit the end of the string - do nothing and carry on
        }

        return sb.toString();
    }
}