--- /dev/null
+package be.nikiroo.utils.resources;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Internal class used to convert data to/from {@link String}s in the context of
+ * {@link Bundle}s.
+ *
+ * @author niki
+ */
+class BundleHelper {
+ /**
+ * Convert the given {@link String} into a {@link Boolean} if it represents
+ * a {@link Boolean}, or NULL if it doesn't.
+ * <p>
+ * Note: null, "strange text", ""... will all be converted to NULL.
+ *
+ * @param str
+ * the input {@link String}
+ * @param item
+ * the item number to use for an array of values, or -1 for
+ * non-arrays
+ *
+ * @return the converted {@link Boolean} or NULL
+ */
+ static public Boolean parseBoolean(String str, int item) {
+ str = getItem(str, item);
+ if (str == null) {
+ return null;
+ }
+
+ if (str.equalsIgnoreCase("true") || str.equalsIgnoreCase("on")
+ || str.equalsIgnoreCase("yes"))
+ return true;
+ if (str.equalsIgnoreCase("false") || str.equalsIgnoreCase("off")
+ || str.equalsIgnoreCase("no"))
+ return false;
+
+ return null;
+ }
+
+ /**
+ * Return a {@link String} representation of the given {@link Boolean}.
+ *
+ * @param value
+ * the input value
+ *
+ * @return the raw {@link String} value that correspond to it
+ */
+ static public String fromBoolean(boolean value) {
+ return Boolean.toString(value);
+ }
+
+ /**
+ * Convert the given {@link String} into a {@link Integer} if it represents
+ * a {@link Integer}, or NULL if it doesn't.
+ * <p>
+ * Note: null, "strange text", ""... will all be converted to NULL.
+ *
+ * @param str
+ * the input {@link String}
+ * @param item
+ * the item number to use for an array of values, or -1 for
+ * non-arrays
+ *
+ * @return the converted {@link Integer} or NULL
+ */
+ static public Integer parseInteger(String str, int item) {
+ str = getItem(str, item);
+ if (str == null) {
+ return null;
+ }
+
+ try {
+ return Integer.parseInt(str);
+ } catch (Exception e) {
+ }
+
+ return null;
+ }
+
+ /**
+ * Return a {@link String} representation of the given {@link Integer}.
+ *
+ * @param value
+ * the input value
+ *
+ * @return the raw {@link String} value that correspond to it
+ */
+ static public String fromInteger(int value) {
+ return Integer.toString(value);
+ }
+
+ /**
+ * Convert the given {@link String} into a {@link Character} if it
+ * represents a {@link Character}, or NULL if it doesn't.
+ * <p>
+ * Note: null, "strange text", ""... will all be converted to NULL
+ * (remember: any {@link String} whose length is not 1 is <b>not</b> a
+ * {@link Character}).
+ *
+ * @param str
+ * the input {@link String}
+ * @param item
+ * the item number to use for an array of values, or -1 for
+ * non-arrays
+ *
+ * @return the converted {@link Character} or NULL
+ */
+ static public Character parseCharacter(String str, int item) {
+ str = getItem(str, item);
+ if (str == null) {
+ return null;
+ }
+
+ String s = str.trim();
+ if (s.length() == 1) {
+ return s.charAt(0);
+ }
+
+ return null;
+ }
+
+ /**
+ * Return a {@link String} representation of the given {@link Boolean}.
+ *
+ * @param value
+ * the input value
+ *
+ * @return the raw {@link String} value that correspond to it
+ */
+ static public String fromCharacter(char value) {
+ return Character.toString(value);
+ }
+
+ /**
+ * Convert the given {@link String} into a colour (represented here as an
+ * {@link Integer}) if it represents a colour, or NULL if it doesn't.
+ * <p>
+ * The returned colour value is an ARGB value.
+ *
+ * @param str
+ * the input {@link String}
+ * @param item
+ * the item number to use for an array of values, or -1 for
+ * non-arrays
+ *
+ * @return the converted colour as an {@link Integer} value or NULL
+ */
+ static Integer parseColor(String str, int item) {
+ str = getItem(str, item);
+ if (str == null) {
+ return null;
+ }
+
+ Integer rep = null;
+
+ str = str.trim();
+ int r = 0, g = 0, b = 0, a = -1;
+ if (str.startsWith("#") && (str.length() == 7 || str.length() == 9)) {
+ try {
+ r = Integer.parseInt(str.substring(1, 3), 16);
+ g = Integer.parseInt(str.substring(3, 5), 16);
+ b = Integer.parseInt(str.substring(5, 7), 16);
+ if (str.length() == 9) {
+ a = Integer.parseInt(str.substring(7, 9), 16);
+ } else {
+ a = 255;
+ }
+
+ } catch (NumberFormatException e) {
+ // no changes
+ }
+ }
+
+ // Try by name if still not found
+ if (a == -1) {
+ if ("black".equalsIgnoreCase(str)) {
+ a = 255;
+ r = 0;
+ g = 0;
+ b = 0;
+ } else if ("white".equalsIgnoreCase(str)) {
+ a = 255;
+ r = 255;
+ g = 255;
+ b = 255;
+ } else if ("red".equalsIgnoreCase(str)) {
+ a = 255;
+ r = 255;
+ g = 0;
+ b = 0;
+ } else if ("green".equalsIgnoreCase(str)) {
+ a = 255;
+ r = 0;
+ g = 255;
+ b = 0;
+ } else if ("blue".equalsIgnoreCase(str)) {
+ a = 255;
+ r = 0;
+ g = 0;
+ b = 255;
+ } else if ("grey".equalsIgnoreCase(str)
+ || "gray".equalsIgnoreCase(str)) {
+ a = 255;
+ r = 128;
+ g = 128;
+ b = 128;
+ } else if ("cyan".equalsIgnoreCase(str)) {
+ a = 255;
+ r = 0;
+ g = 255;
+ b = 255;
+ } else if ("magenta".equalsIgnoreCase(str)) {
+ a = 255;
+ r = 255;
+ g = 0;
+ b = 255;
+ } else if ("yellow".equalsIgnoreCase(str)) {
+ a = 255;
+ r = 255;
+ g = 255;
+ b = 0;
+ }
+ }
+
+ if (a != -1) {
+ rep = ((a & 0xFF) << 24) //
+ | ((r & 0xFF) << 16) //
+ | ((g & 0xFF) << 8) //
+ | ((b & 0xFF) << 0);
+ }
+
+ return rep;
+ }
+
+ /**
+ * Return a {@link String} representation of the given colour.
+ * <p>
+ * The colour value is interpreted as an ARGB value.
+ *
+ * @param color
+ * the ARGB colour value
+ * @return the raw {@link String} value that correspond to it
+ */
+ static public String fromColor(int color) {
+ int a = (color >> 24) & 0xFF;
+ int r = (color >> 16) & 0xFF;
+ int g = (color >> 8) & 0xFF;
+ int b = (color >> 0) & 0xFF;
+
+ String rs = Integer.toString(r, 16);
+ String gs = Integer.toString(g, 16);
+ String bs = Integer.toString(b, 16);
+ String as = "";
+ if (a < 255) {
+ as = Integer.toString(a, 16);
+ }
+
+ return "#" + rs + gs + bs + as;
+ }
+
+ /**
+ * The size of this raw list (note than a NULL list is of size 0).
+ *
+ * @param raw
+ * the raw list
+ *
+ * @return its size if it is a list (NULL is an empty list), -1 if it is not
+ * a list
+ */
+ static public int getListSize(String raw) {
+ if (raw == null) {
+ return 0;
+ }
+
+ List<String> list = parseList(raw, -1);
+ if (list == null) {
+ return -1;
+ }
+
+ return list.size();
+ }
+
+ /**
+ * Return a {@link String} representation of the given list of values.
+ * <p>
+ * The list of values is comma-separated and each value is surrounded by
+ * double-quotes; caret (^) and double-quotes (") are escaped by a caret.
+ *
+ * @param str
+ * the input value
+ * @param item
+ * the item number to use for an array of values, or -1 for
+ * non-arrays
+ *
+ * @return the raw {@link String} value that correspond to it
+ */
+ static public List<String> parseList(String str, int item) {
+ if (str == null) {
+ return null;
+ }
+
+ if (item >= 0) {
+ str = getItem(str, item);
+ }
+
+ List<String> list = new ArrayList<String>();
+ try {
+ boolean inQuote = false;
+ boolean prevIsBackSlash = false;
+ StringBuilder builder = new StringBuilder();
+ for (int i = 0; i < str.length(); i++) {
+ char car = str.charAt(i);
+
+ if (prevIsBackSlash) {
+ // We don't process it here
+ builder.append(car);
+ prevIsBackSlash = false;
+ } else {
+ switch (car) {
+ case '"':
+ // We don't process it here
+ builder.append(car);
+
+ if (inQuote) {
+ list.add(unescape(builder.toString()));
+ builder.setLength(0);
+ }
+
+ inQuote = !inQuote;
+ break;
+ case '^':
+ // We don't process it here
+ builder.append(car);
+ prevIsBackSlash = true;
+ break;
+ case ' ':
+ case '\n':
+ case '\r':
+ if (inQuote) {
+ builder.append(car);
+ }
+ break;
+
+ case ',':
+ if (!inQuote) {
+ break;
+ }
+ // continue to default
+ default:
+ if (!inQuote) {
+ // Bad format!
+ return null;
+ }
+
+ builder.append(car);
+ break;
+ }
+ }
+ }
+
+ if (inQuote || prevIsBackSlash) {
+ // Bad format!
+ return null;
+ }
+
+ } catch (Exception e) {
+ return null;
+ }
+
+ return list;
+ }
+
+ /**
+ * Return a {@link String} representation of the given list of values.
+ * <p>
+ * NULL will be assimilated to an empty {@link String} if later non-null
+ * values exist, or just ignored if not.
+ * <p>
+ * Example:
+ * <ul>
+ * <li><tt>1</tt>,<tt>NULL</tt>, <tt>3</tt> will become <tt>1</tt>,
+ * <tt>""</tt>, <tt>3</tt></li>
+ * <li><tt>1</tt>,<tt>NULL</tt>, <tt>NULL</tt> will become <tt>1</tt></li>
+ * <li><tt>NULL</tt>, <tt>NULL</tt>, <tt>NULL</tt> will become an empty list
+ * </li>
+ * </ul>
+ *
+ * @param list
+ * the input value
+ *
+ * @return the raw {@link String} value that correspond to it
+ */
+ static public String fromList(List<String> list) {
+ if (list == null) {
+ list = new ArrayList<String>();
+ }
+
+ int last = list.size() - 1;
+ for (int i = 0; i < list.size(); i++) {
+ if (list.get(i) != null) {
+ last = i;
+ }
+ }
+
+ StringBuilder builder = new StringBuilder();
+ for (int i = 0; i <= last; i++) {
+ String item = list.get(i);
+ if (item == null) {
+ item = "";
+ }
+
+ if (builder.length() > 0) {
+ builder.append(", ");
+ }
+ builder.append(escape(item));
+ }
+
+ return builder.toString();
+ }
+
+ /**
+ * Return a {@link String} representation of the given list of values.
+ * <p>
+ * NULL will be assimilated to an empty {@link String} if later non-null
+ * values exist, or just ignored if not.
+ * <p>
+ * Example:
+ * <ul>
+ * <li><tt>1</tt>,<tt>NULL</tt>, <tt>3</tt> will become <tt>1</tt>,
+ * <tt>""</tt>, <tt>3</tt></li>
+ * <li><tt>1</tt>,<tt>NULL</tt>, <tt>NULL</tt> will become <tt>1</tt></li>
+ * <li><tt>NULL</tt>, <tt>NULL</tt>, <tt>NULL</tt> will become an empty list
+ * </li>
+ * </ul>
+ *
+ * @param list
+ * the input value
+ * @param value
+ * the value to insert
+ * @param item
+ * the position to insert it at
+ *
+ * @return the raw {@link String} value that correspond to it
+ */
+ static public String fromList(List<String> list, String value, int item) {
+ if (list == null) {
+ list = new ArrayList<String>();
+ }
+
+ while (item >= list.size()) {
+ list.add(null);
+ }
+ list.set(item, value);
+
+ return fromList(list);
+ }
+
+ /**
+ * Return a {@link String} representation of the given list of values.
+ * <p>
+ * NULL will be assimilated to an empty {@link String} if later non-null
+ * values exist, or just ignored if not.
+ * <p>
+ * Example:
+ * <ul>
+ * <li><tt>1</tt>,<tt>NULL</tt>, <tt>3</tt> will become <tt>1</tt>,
+ * <tt>""</tt>, <tt>3</tt></li>
+ * <li><tt>1</tt>,<tt>NULL</tt>, <tt>NULL</tt> will become <tt>1</tt></li>
+ * <li><tt>NULL</tt>, <tt>NULL</tt>, <tt>NULL</tt> will become an empty list
+ * </li>
+ * </ul>
+ *
+ * @param list
+ * the input value
+ * @param value
+ * the value to insert
+ * @param item
+ * the position to insert it at
+ *
+ * @return the raw {@link String} value that correspond to it
+ */
+ static public String fromList(String list, String value, int item) {
+ return fromList(parseList(list, -1), value, item);
+ }
+
+ /**
+ * Escape the given value for list formating (no carets, no NEWLINES...).
+ * <p>
+ * You can unescape it with {@link BundleHelper#unescape(String)}
+ *
+ * @param value
+ * the value to escape
+ *
+ * @return an escaped value that can unquoted by the reverse operation
+ * {@link BundleHelper#unescape(String)}
+ */
+ static public String escape(String value) {
+ return '"' + value//
+ .replace("^", "^^") //
+ .replace("\"", "^\"") //
+ .replace("\n", "^\n") //
+ .replace("\r", "^\r") //
+ + '"';
+ }
+
+ /**
+ * Unescape the given value for list formating (change ^n into NEWLINE and
+ * so on).
+ * <p>
+ * You can escape it with {@link BundleHelper#escape(String)}
+ *
+ * @param value
+ * the value to escape
+ *
+ * @return an unescaped value that can reverted by the reverse operation
+ * {@link BundleHelper#escape(String)}, or NULL if it was badly
+ * formated
+ */
+ static public String unescape(String value) {
+ if (value.length() < 2 || !value.startsWith("\"")
+ || !value.endsWith("\"")) {
+ // Bad format
+ return null;
+ }
+
+ value = value.substring(1, value.length() - 1);
+
+ boolean prevIsBackslash = false;
+ StringBuilder builder = new StringBuilder();
+ for (char car : value.toCharArray()) {
+ if (prevIsBackslash) {
+ switch (car) {
+ case 'n':
+ case 'N':
+ builder.append('\n');
+ break;
+ case 'r':
+ case 'R':
+ builder.append('\r');
+ break;
+ default: // includes ^ and "
+ builder.append(car);
+ break;
+ }
+ prevIsBackslash = false;
+ } else {
+ if (car == '^') {
+ prevIsBackslash = true;
+ } else {
+ builder.append(car);
+ }
+ }
+ }
+
+ if (prevIsBackslash) {
+ // Bad format
+ return null;
+ }
+
+ return builder.toString();
+ }
+
+ /**
+ * Retrieve the specific item in the given value, assuming it is an array.
+ *
+ * @param value
+ * the value to look into
+ * @param item
+ * the item number to get for an array of values, or -1 for
+ * non-arrays (in that case, simply return the value as-is)
+ *
+ * @return the value as-is for non arrays, the item <tt>item</tt> if found,
+ * NULL if not
+ */
+ static private String getItem(String value, int item) {
+ if (item >= 0) {
+ value = null;
+ List<String> values = parseList(value, -1);
+ if (values != null && item < values.size()) {
+ value = values.get(item);
+ }
+ }
+
+ return value;
+ }
+}
git://git.nikiroo.be / fanfix.git / blobdiff