import java.util.Vector;
import javax.microedition.lcdui.Font;
import javax.microedition.lcdui.Graphics;
public final class TextUtil {
/**
*
* @param value
* @param regex
* @return
*/
public static String[] split(String value, String regex) {
if (value == null || value.equals("")) {
return null;
}
Vector split = new Vector();
while (true) { //
int index = value.indexOf(regex);
if (index == -1) {
if (value != null && !value.equals("")) {
split.addElement(value);
break;
}
}
split.addElement(value.substring(0, index));
value = value.substring(index + 1, value.length());
}
String[] s = new String[split.size()];
split.copyInto(s);
return s;
}
/**
*
* */
public static String[] split(String value, Font font, int width) {
String[] result = new String[1];
if (font.stringWidth(value) < width) {
result[0] = value;
return result;
} else {
char[] ch = value.toCharArray();
Vector lines = new Vector();
StringBuffer sb = new StringBuffer();
int w = 0;
for (int i = 0; i < ch.length; i++) {
w = w + font.charWidth(ch[i]);
sb.append(ch[i]);
if (w >= width - 12) {
lines.addElement(sb.toString());
sb.setLength(0);
w = 0;
}
}
lines.addElement(sb.toString());
result = new String[lines.size()];
lines.copyInto(result);
lines.removeAllElements();
lines = null;
return result;
}
}
/**
*
* sourceStr
* maxWidth
* split
*/
public static final Vector getSubsection(String sourceStr, int maxWidth, String split, Font font) {
Vector vector = new Vector();
String tmp = sourceStr;
int i, j;
int lastLength = 1;
int step = 0;
try {
while (!tmp.equals("")) {
i = tmp.indexOf("
");
if (i > 0) {
if (font.stringWidth(tmp.substring(0, i - 1)) > maxWidth) {
i = -1;
}
}
if (i == -1) {
if (lastLength > tmp.length()) {
i = tmp.length();
} else {
i = lastLength;
step = font.stringWidth(tmp.substring(0, i)) > maxWidth ? -1 : 1;
if (i < tmp.length()) {
while (!(font.stringWidth(tmp.substring(0, i)) <= maxWidth && font.stringWidth(tmp.substring(0, i + 1)) > maxWidth)) {
i = i + step;
if (i == tmp.length()) {
break;
}
}
}
}
if (!split.equals("")) {
j = i;
if (i < tmp.length()) {
while (split.indexOf(tmp.substring(i - 1, i)) == -1) {
i--;
if (i == 0) {
i = j;
break;
}
}
}
}
}
lastLength = i;
vector.addElement(tmp.substring(0, i));
if (i == tmp.length()) {
tmp = "";
} else {
tmp = tmp.substring(i);
if (tmp.substring(0, 1).equals("
")) {
tmp = tmp.substring(1);
}
}
}
} catch (Exception e) {
System.out.println("getSub:" + e);
}
return vector;
}
/**
*
* string
* x
* y
* width
* color
* font
*/
public static final void drawString(Graphics g, String string, int x, int y, int width, int color, Font font) {
g.setColor(color);
Vector vector = getSubsection(string, width, "", font);
for (int i = 0; i < vector.size(); i++) {
g.drawString((String) vector.elementAt(i), x, y + (font.getHeight() + 2) * i + 1, 20);
}
vector = null;
}
/**
* , , ^_^
* width "..."
*/
public static String devide(String value, Font font, int width) {
if (font.stringWidth(value) < width) {
return value;
}
char[] ch = value.toCharArray();
StringBuffer sb = new StringBuffer();
int w = 0;
for (int i = 0; i < ch.length; i++) {
w = w + font.charWidth(ch[i]);
sb.append(ch[i]);
if (w >= width) {
sb.append("..."); //
return sb.toString();
}
}
return sb.toString();
}
/**
*
* "+" , StringBuffer
*/
public final static String append(String one, String two) {
StringBuffer sb = new StringBuffer();
sb.append(one);
sb.append(two);
return sb.toString();
}
public static boolean wrongCardNumber(String inputCardNumber) {
int key = -1;
int len = inputCardNumber.length();
if (len < 16) {
return true;
}
String tmp = inputCardNumber.substring(0, len - 1);
int[] num = new int[tmp.length()];
for (int i = 0; i < len; i++) {
if (inputCardNumber.charAt(i) < '0' && inputCardNumber.charAt(i) > '9') {
return true;
}
}
for (int i = 0; i < num.length; i++) {
num[i] = Integer.parseInt(tmp.substring(i, i + 1));
}
int total = 0;
for (int i = num.length - 1; i >= 0; i -= 2) {
total += (2 * num[i] / 10 + 2 * num[i] % 10);
}
for (int i = num.length - 2; i >= 0; i -= 2) {
total += num[i];
}
if (total % 10 == 0) {
key = 0;
} else {
key = (total / 10 + 1) * 10 - total;
}
if (key == Integer.parseInt(inputCardNumber.substring(len - 1, len))) {
return false;
}
return true;
}
// 4 4 ， ：1111-1111-1111-1111
public static String formatNumber(String input) {
int length = input.length();
StringBuffer sb = new StringBuffer();
// int j=0;
for (int i = 0; i < length; i++) {
if (i % 4 == 0 && i != 0) {
sb.append('-');
sb.append(input.charAt(i));
} else {
sb.append(input.charAt(i));
}
}
return sb.toString();
}
}