| /* |
| * Copyright 2006 Sun Microsystems, Inc. All Rights Reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Sun designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Sun in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| * CA 95054 USA or visit www.sun.com if you need additional information or |
| * have any questions. |
| */ |
| |
| package com.sun.tools.internal.txw2; |
| |
| import com.sun.codemodel.JJavaName; |
| |
| import java.util.ArrayList; |
| |
| /** |
| * @author Kohsuke Kawaguchi |
| */ |
| public class NameUtil { |
| |
| protected static boolean isPunct(char c) { |
| return (c == '-' || c == '.' || c == ':' || c == '_' || c == '\u00b7' |
| || c == '\u0387' || c == '\u06dd' || c == '\u06de'); |
| } |
| |
| protected static boolean isDigit(char c) { |
| return ((c >= '0' && c <= '9') || Character.isDigit(c)); |
| } |
| |
| protected static boolean isUpper(char c) { |
| return ((c >= 'A' && c <= 'Z') || Character.isUpperCase(c)); |
| } |
| |
| protected static boolean isLower(char c) { |
| return ((c >= 'a' && c <= 'z') || Character.isLowerCase(c)); |
| } |
| |
| protected static boolean isLetter(char c) { |
| return ((c >= 'A' && c <= 'Z') |
| || (c >= 'a' && c <= 'z') |
| || Character.isLetter(c)); |
| } |
| |
| /** |
| * Capitalizes the first character of the specified string, |
| * and de-capitalize the rest of characters. |
| */ |
| public static String capitalize(String s) { |
| if (!isLower(s.charAt(0))) |
| return s; |
| StringBuffer sb = new StringBuffer(s.length()); |
| sb.append(Character.toUpperCase(s.charAt(0))); |
| sb.append(s.substring(1).toLowerCase()); |
| return sb.toString(); |
| } |
| |
| // Precondition: s[start] is not punctuation |
| protected static int nextBreak(String s, int start) { |
| int n = s.length(); |
| for (int i = start; i < n; i++) { |
| char c0 = s.charAt(i); |
| if (i < n - 1) { |
| char c1 = s.charAt(i + 1); |
| if (isPunct(c1)) return i + 1; |
| if (isDigit(c0) && !isDigit(c1)) return i + 1; |
| if (!isDigit(c0) && isDigit(c1)) return i + 1; |
| if (isLower(c0) && !isLower(c1)) return i + 1; |
| if (isLetter(c0) && !isLetter(c1)) return i + 1; |
| if (!isLetter(c0) && isLetter(c1)) return i + 1; |
| if (i < n - 2) { |
| char c2 = s.charAt(i + 2); |
| if (isUpper(c0) && isUpper(c1) && isLower(c2)) |
| return i + 1; |
| } |
| } |
| } |
| return -1; |
| } |
| |
| |
| /** |
| * Tokenizes a string into words and capitalizes the first |
| * character of each word. |
| * |
| * <p> |
| * This method uses a change in character type as a splitter |
| * of two words. For example, "abc100ghi" will be splitted into |
| * {"Abc", "100","Ghi"}. |
| */ |
| public static String[] toWordList(String s) { |
| ArrayList ss = new ArrayList(); |
| int n = s.length(); |
| for (int i = 0; i < n;) { |
| |
| // Skip punctuation |
| while (i < n) { |
| if (!isPunct(s.charAt(i))) |
| break; |
| i++; |
| } |
| if (i >= n) break; |
| |
| // Find next break and collect word |
| int b = nextBreak(s, i); |
| String w = (b == -1) ? s.substring(i) : s.substring(i, b); |
| ss.add(escape(capitalize(w))); |
| if (b == -1) break; |
| i = b; |
| } |
| |
| // we can't guarantee a valid Java identifier anyway, |
| // so there's not much point in rejecting things in this way. |
| // if (ss.size() == 0) |
| // throw new IllegalArgumentException("Zero-length identifier"); |
| return (String[])(ss.toArray(new String[0])); |
| } |
| |
| protected static String toMixedCaseName(String[] ss, boolean startUpper) { |
| StringBuffer sb = new StringBuffer(); |
| if(ss.length>0) { |
| sb.append(startUpper ? ss[0] : ss[0].toLowerCase()); |
| for (int i = 1; i < ss.length; i++) |
| sb.append(ss[i]); |
| } |
| return sb.toString(); |
| } |
| |
| protected static String toMixedCaseVariableName(String[] ss, |
| boolean startUpper, |
| boolean cdrUpper) { |
| if (cdrUpper) |
| for (int i = 1; i < ss.length; i++) |
| ss[i] = capitalize(ss[i]); |
| StringBuffer sb = new StringBuffer(); |
| if( ss.length>0 ) { |
| sb.append(startUpper ? ss[0] : ss[0].toLowerCase()); |
| for (int i = 1; i < ss.length; i++) |
| sb.append(ss[i]); |
| } |
| return sb.toString(); |
| } |
| |
| |
| /** |
| * Formats a string into "THIS_KIND_OF_FORMAT_ABC_DEF". |
| * |
| * @return |
| * Always return a string but there's no guarantee that |
| * the generated code is a valid Java identifier. |
| */ |
| public static String toConstantName(String s) { |
| return toConstantName(toWordList(s)); |
| } |
| |
| /** |
| * Formats a string into "THIS_KIND_OF_FORMAT_ABC_DEF". |
| * |
| * @return |
| * Always return a string but there's no guarantee that |
| * the generated code is a valid Java identifier. |
| */ |
| public static String toConstantName(String[] ss) { |
| StringBuffer sb = new StringBuffer(); |
| if( ss.length>0 ) { |
| sb.append(ss[0].toUpperCase()); |
| for (int i = 1; i < ss.length; i++) { |
| sb.append('_'); |
| sb.append(ss[i].toUpperCase()); |
| } |
| } |
| return sb.toString(); |
| } |
| |
| |
| |
| /** |
| * Escapes characters is the given string so that they can be |
| * printed by only using US-ASCII characters. |
| * |
| * The escaped characters will be appended to the given |
| * StringBuffer. |
| * |
| * @param sb |
| * StringBuffer that receives escaped string. |
| * @param s |
| * String to be escaped. <code>s.substring(start)</code> |
| * will be escaped and copied to the string buffer. |
| */ |
| public static void escape(StringBuffer sb, String s, int start) { |
| int n = s.length(); |
| for (int i = start; i < n; i++) { |
| char c = s.charAt(i); |
| if (Character.isJavaIdentifierPart(c)) |
| sb.append(c); |
| else { |
| sb.append("_"); |
| if (c <= '\u000f') sb.append("000"); |
| else if (c <= '\u00ff') sb.append("00"); |
| else if (c <= '\u0fff') sb.append("0"); |
| sb.append(Integer.toString(c, 16)); |
| } |
| } |
| } |
| |
| /** |
| * Escapes characters that are unusable as Java identifiers |
| * by replacing unsafe characters with safe characters. |
| */ |
| private static String escape(String s) { |
| int n = s.length(); |
| for (int i = 0; i < n; i++) |
| if (!Character.isJavaIdentifierPart(s.charAt(i))) { |
| StringBuffer sb = new StringBuffer(s.substring(0, i)); |
| escape(sb, s, i); |
| return sb.toString(); |
| } |
| return s; |
| } |
| |
| /** |
| * Escape any characters that would cause the single arg constructor |
| * of java.net.URI to complain about illegal chars. |
| * |
| * @param s source string to be escaped |
| */ |
| public static String escapeURI(String s) { |
| StringBuffer sb = new StringBuffer(); |
| for( int i = 0; i < s.length(); i++ ) { |
| char c = s.charAt(i); |
| if(Character.isSpaceChar(c)) { |
| sb.append("%20"); |
| } else { |
| sb.append(c); |
| } |
| } |
| return sb.toString(); |
| } |
| |
| /** |
| * Calculate the parent URI path of the given URI path. |
| * |
| * @param uriPath the uriPath (as returned by java.net.URI#getPath() |
| * @return the parent URI path of the given URI path |
| */ |
| public static String getParentUriPath(String uriPath) { |
| int idx = uriPath.lastIndexOf('/'); |
| |
| if (uriPath.endsWith("/")) { |
| uriPath = uriPath.substring(0,idx); // trim trailing slash |
| idx = uriPath.lastIndexOf('/'); // move idx to parent context |
| } |
| |
| return uriPath.substring(0, idx)+"/"; |
| } |
| |
| /** |
| * Calculate the normalized form of the given uriPath. |
| * |
| * For example: |
| * /a/b/c/ -> /a/b/c/ |
| * /a/b/c -> /a/b/ |
| * /a/ -> /a/ |
| * /a -> / |
| * |
| * @param uriPath path of a URI (as returned by java.net.URI#getPath() |
| * @return the normalized uri path |
| */ |
| public static String normalizeUriPath(String uriPath) { |
| if (uriPath.endsWith("/")) |
| return uriPath; |
| |
| // the uri path should always have at least a leading slash, |
| // so no need to make sure that ( idx == -1 ) |
| int idx = uriPath.lastIndexOf('/'); |
| return uriPath.substring(0, idx+1); |
| } |
| |
| /** |
| * determine if two Strings are equal ignoring case allowing null values |
| * |
| * @param s string 1 |
| * @param t string 2 |
| * @return true iff the given strings are equal ignoring case, false if they aren't |
| * equal or either of them are null. |
| */ |
| public static boolean equalsIgnoreCase(String s, String t) { |
| if (s == t) return true; |
| if ((s != null) && (t != null)) { |
| return s.equalsIgnoreCase(t); |
| } |
| return false; |
| } |
| |
| /** |
| * determine if two Strings are iqual allowing null values |
| * |
| * @param s string 1 |
| * @param t string 2 |
| * @return true iff the strings are equal, false if they aren't equal or either of |
| * them are null. |
| */ |
| public static boolean equal(String s, String t) { |
| if (s == t) return true; |
| if ((s != null) && (t != null)) { |
| return s.equals(t); |
| } |
| return false; |
| } |
| |
| public static String toClassName(String s) { |
| return toMixedCaseName(toWordList(s), true); |
| } |
| public static String toVariableName(String s) { |
| return toMixedCaseName(toWordList(s), false); |
| } |
| public static String toMethodName(String s) { |
| String m = toMixedCaseName(toWordList(s), false); |
| if(JJavaName.isJavaIdentifier(m)) |
| return m; |
| else |
| return '_'+m; |
| } |
| public static String toInterfaceName( String token ) { |
| return toClassName(token); |
| } |
| public static String toPropertyName(String s) { |
| return toClassName(s); |
| } |
| public static String toPackageName( String s ) { |
| return toMixedCaseName(toWordList(s), false ); |
| } |
| } |