--- /dev/null
+package be.nikiroo.jvcard.resources;
+
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+import java.text.Normalizer;
+import java.text.Normalizer.Form;
+import java.text.ParseException;
+import java.text.SimpleDateFormat;
+import java.util.Date;
+import java.util.regex.Pattern;
+
+import com.googlecode.lanterna.gui2.LinearLayout.Alignment;
+
+public class StringUtils {
+ static private Pattern marks = Pattern
+ .compile("[\\p{InCombiningDiacriticalMarks}\\p{IsLm}\\p{IsSk}]+");
+
+ /**
+ * Fix the size of the given {@link String} either with space-padding or by
+ * shortening it.
+ *
+ * @param text
+ * the {@link String} to fix
+ * @param width
+ * the size of the resulting {@link String} if the text fits or
+ * if cut is TRUE
+ *
+ * @return the resulting {@link String} of size <i>size</i>
+ */
+ static public String padString(String text, int width) {
+ return padString(text, width, true, Alignment.Beginning);
+ }
+
+ /**
+ * Fix the size of the given {@link String} either with space-padding or by
+ * optionally shortening it.
+ *
+ * @param text
+ * the {@link String} to fix
+ * @param width
+ * the size of the resulting {@link String} if the text fits or
+ * if cut is TRUE
+ * @param cut
+ * cut the {@link String} shorter if needed
+ * @param align
+ * align the {@link String} in this position if we have enough
+ * space
+ *
+ * @return the resulting {@link String} of size <i>size</i> minimum
+ */
+ static public String padString(String text, int width, boolean cut,
+ Alignment align) {
+
+ if (width >= 0) {
+ if (text == null)
+ text = "";
+
+ int diff = width - text.length();
+
+ if (diff < 0) {
+ if (cut)
+ text = text.substring(0, width);
+ } else if (diff > 0) {
+ if (diff < 2 && align != Alignment.End)
+ align = Alignment.Beginning;
+
+ switch (align) {
+ case Beginning:
+ text = text + new String(new char[diff]).replace('\0', ' ');
+ break;
+ case End:
+ text = new String(new char[diff]).replace('\0', ' ') + text;
+ break;
+ case Center:
+ case Fill:
+ default:
+ int pad1 = (diff) / 2;
+ int pad2 = (diff + 1) / 2;
+ text = new String(new char[pad1]).replace('\0', ' ') + text
+ + new String(new char[pad2]).replace('\0', ' ');
+ break;
+ }
+ }
+ }
+
+ return text;
+ }
+
+ /**
+ * Sanitise the given input to make it more Terminal-friendly by removing
+ * combining characters.
+ *
+ * @param input
+ * the input to sanitise
+ * @param allowUnicode
+ * allow Unicode or only allow ASCII Latin characters
+ *
+ * @return the sanitised {@link String}
+ */
+ static public String sanitize(String input, boolean allowUnicode) {
+ return sanitize(input, allowUnicode, !allowUnicode);
+ }
+
+ /**
+ * Sanitise the given input to make it more Terminal-friendly by removing
+ * combining characters.
+ *
+ * @param input
+ * the input to sanitise
+ * @param allowUnicode
+ * allow Unicode or only allow ASCII Latin characters
+ * @param removeAllAccents
+ * TRUE to replace all accentuated characters by their non
+ * accentuated counter-parts
+ *
+ * @return the sanitised {@link String}
+ */
+ static public String sanitize(String input, boolean allowUnicode,
+ boolean removeAllAccents) {
+
+ if (removeAllAccents) {
+ input = Normalizer.normalize(input, Form.NFKD);
+ input = marks.matcher(input).replaceAll("");
+ }
+
+ input = Normalizer.normalize(input, Form.NFKC);
+
+ if (!allowUnicode) {
+ StringBuilder builder = new StringBuilder();
+ for (int index = 0; index < input.length(); index++) {
+ char car = input.charAt(index);
+ // displayable chars in ASCII are in the range 32<->255,
+ // except DEL (127)
+ if (car >= 32 && car <= 255 && car != 127) {
+ builder.append(car);
+ }
+ }
+ input = builder.toString();
+ }
+
+ return input;
+ }
+
+ /**
+ * Convert between time in milliseconds to {@link String} in a "static" way
+ * (to exchange data over the wire, for instance).
+ *
+ * @param time
+ * the time in milliseconds
+ *
+ * @return the time as a {@link String}
+ */
+ static public String fromTime(long time) {
+ SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
+ return sdf.format(new Date(time));
+ }
+
+ /**
+ * Convert between time as a {@link String} to milliseconds in a "static"
+ * way (to exchange data over the wire, for instance).
+ *
+ * @param time
+ * the time as a {@link String}
+ *
+ * @return the time in milliseconds
+ */
+ static public long toTime(String display) {
+ SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
+ try {
+ return sdf.parse(display).getTime();
+ } catch (ParseException e) {
+ return -1;
+ }
+ }
+
+ /**
+ * Return a hash of the given {@link String}.
+ *
+ * @param input
+ * the input data
+ *
+ * @return the hash
+ */
+ static public String getHash(String input) {
+ try {
+ MessageDigest md = MessageDigest.getInstance("MD5");
+ md.update(input.getBytes());
+ byte byteData[] = md.digest();
+
+ StringBuffer hexString = new StringBuffer();
+ for (int i = 0; i < byteData.length; i++) {
+ String hex = Integer.toHexString(0xff & byteData[i]);
+ if (hex.length() == 1)
+ hexString.append('0');
+ hexString.append(hex);
+ }
+
+ return hexString.toString();
+ } catch (NoSuchAlgorithmException e) {
+ // all JVM most probably have an MD5 implementation, but even if
+ // not, returning the input is "correct", if inefficient and
+ // unsecure
+ return input;
+ }
+ }
+}
git://git.nikiroo.be / jvcard.git / blobdiff