diff options
Diffstat (limited to 'java/sca/modules/common-xml/src/main/java/org/apache/tuscany/sca/common/xml/xpath/XMLCharHelper.java')
| -rw-r--r-- | java/sca/modules/common-xml/src/main/java/org/apache/tuscany/sca/common/xml/xpath/XMLCharHelper.java | 613 |
1 files changed, 0 insertions, 613 deletions
diff --git a/java/sca/modules/common-xml/src/main/java/org/apache/tuscany/sca/common/xml/xpath/XMLCharHelper.java b/java/sca/modules/common-xml/src/main/java/org/apache/tuscany/sca/common/xml/xpath/XMLCharHelper.java deleted file mode 100644 index ea659ce344..0000000000 --- a/java/sca/modules/common-xml/src/main/java/org/apache/tuscany/sca/common/xml/xpath/XMLCharHelper.java +++ /dev/null @@ -1,613 +0,0 @@ -/* - * Licensed to the Apache Software Foundation (ASF) under one - * or more contributor license agreements. See the NOTICE file - * distributed with this work for additional information - * regarding copyright ownership. The ASF licenses this file - * to you under the Apache License, Version 2.0 (the - * "License"); you may not use this file except in compliance - * with the License. You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, - * software distributed under the License is distributed on an - * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY - * KIND, either express or implied. See the License for the - * specific language governing permissions and limitations - * under the License. - */ - -package org.apache.tuscany.sca.common.xml.xpath; - -/** - * This class defines the basic XML character properties. The data - * in this class can be used to verify that a character is a valid - * XML character or if the character is a space, name start, or name - * character. - * <p/> - * A series of convenience methods are supplied to ease the burden - * of the developer. Because inlining the checks can improve per - * character performance, the tables of character properties are - * public. Using the character as an index into the <code>CHARS</code> - * array and applying the appropriate mask flag (e.g. - * <code>MASK_VALID</code>), yields the same results as calling the - * convenience methods. There is one exception: check the comments - * for the <code>isValid</code> method for details. - */ -public class XMLCharHelper { - - // - // Constants - // - - /** - * Character flags. - */ - private static final byte[] CHARS = new byte[1 << 16]; - - /** - * Valid character mask. - */ - public static final int MASK_VALID = 0x01; - - /** - * Space character mask. - */ - public static final int MASK_SPACE = 0x02; - - /** - * Name start character mask. - */ - public static final int MASK_NAME_START = 0x04; - - /** - * Name character mask. - */ - public static final int MASK_NAME = 0x08; - - /** - * Pubid character mask. - */ - public static final int MASK_PUBID = 0x10; - - /** - * Content character mask. Special characters are those that can - * be considered the start of markup, such as '<' and '&'. - * The various newline characters are considered special as well. - * All other valid XML characters can be considered content. - * <p/> - * This is an optimization for the inner loop of character scanning. - */ - public static final int MASK_CONTENT = 0x20; - - /** - * NCName start character mask. - */ - public static final int MASK_NCNAME_START = 0x40; - - /** - * NCName character mask. - */ - public static final int MASK_NCNAME = 0x80; - - // - // Static initialization - // - - static { - - // - // [2] Char ::= #x9 | #xA | #xD | [#x20-#xD7FF] | - // [#xE000-#xFFFD] | [#x10000-#x10FFFF] - // - - int charRange[] = {0x0009, 0x000A, 0x000D, 0x000D, 0x0020, 0xD7FF, 0xE000, 0xFFFD,}; - - // - // [3] S ::= (#x20 | #x9 | #xD | #xA)+ - // - - int spaceChar[] = {0x0020, 0x0009, 0x000D, 0x000A,}; - - // - // [4] NameChar ::= Letter | Digit | '.' | '-' | '_' | ':' | - // CombiningChar | Extender - // - - int nameChar[] = {0x002D, 0x002E, // '-' and '.' - }; - - // - // [5] Name ::= (Letter | '_' | ':') (NameChar)* - // - - int nameStartChar[] = {0x003A, 0x005F, // ':' and '_' - }; - - // - // [13] PubidChar ::= #x20 | 0xD | 0xA | [a-zA-Z0-9] | [-'()+,./:=?;!*#@$_%] - // - - int pubidChar[] = {0x000A, 0x000D, 0x0020, 0x0021, 0x0023, 0x0024, 0x0025, 0x003D, 0x005F}; - - int pubidRange[] = {0x0027, 0x003B, 0x003F, 0x005A, 0x0061, 0x007A}; - - // - // [84] Letter ::= BaseChar | Ideographic - // - - int letterRange[] = - { - // BaseChar - 0x0041, 0x005A, 0x0061, 0x007A, 0x00C0, 0x00D6, 0x00D8, 0x00F6, 0x00F8, 0x0131, 0x0134, 0x013E, 0x0141, - 0x0148, 0x014A, 0x017E, 0x0180, 0x01C3, 0x01CD, 0x01F0, 0x01F4, 0x01F5, 0x01FA, 0x0217, 0x0250, 0x02A8, - 0x02BB, 0x02C1, 0x0388, 0x038A, 0x038E, 0x03A1, 0x03A3, 0x03CE, 0x03D0, 0x03D6, 0x03E2, 0x03F3, 0x0401, - 0x040C, 0x040E, 0x044F, 0x0451, 0x045C, 0x045E, 0x0481, 0x0490, 0x04C4, 0x04C7, 0x04C8, 0x04CB, 0x04CC, - 0x04D0, 0x04EB, 0x04EE, 0x04F5, 0x04F8, 0x04F9, 0x0531, 0x0556, 0x0561, 0x0586, 0x05D0, 0x05EA, 0x05F0, - 0x05F2, 0x0621, 0x063A, 0x0641, 0x064A, 0x0671, 0x06B7, 0x06BA, 0x06BE, 0x06C0, 0x06CE, 0x06D0, 0x06D3, - 0x06E5, 0x06E6, 0x0905, 0x0939, 0x0958, 0x0961, 0x0985, 0x098C, 0x098F, 0x0990, 0x0993, 0x09A8, 0x09AA, - 0x09B0, 0x09B6, 0x09B9, 0x09DC, 0x09DD, 0x09DF, 0x09E1, 0x09F0, 0x09F1, 0x0A05, 0x0A0A, 0x0A0F, 0x0A10, - 0x0A13, 0x0A28, 0x0A2A, 0x0A30, 0x0A32, 0x0A33, 0x0A35, 0x0A36, 0x0A38, 0x0A39, 0x0A59, 0x0A5C, 0x0A72, - 0x0A74, 0x0A85, 0x0A8B, 0x0A8F, 0x0A91, 0x0A93, 0x0AA8, 0x0AAA, 0x0AB0, 0x0AB2, 0x0AB3, 0x0AB5, 0x0AB9, - 0x0B05, 0x0B0C, 0x0B0F, 0x0B10, 0x0B13, 0x0B28, 0x0B2A, 0x0B30, 0x0B32, 0x0B33, 0x0B36, 0x0B39, 0x0B5C, - 0x0B5D, 0x0B5F, 0x0B61, 0x0B85, 0x0B8A, 0x0B8E, 0x0B90, 0x0B92, 0x0B95, 0x0B99, 0x0B9A, 0x0B9E, 0x0B9F, - 0x0BA3, 0x0BA4, 0x0BA8, 0x0BAA, 0x0BAE, 0x0BB5, 0x0BB7, 0x0BB9, 0x0C05, 0x0C0C, 0x0C0E, 0x0C10, 0x0C12, - 0x0C28, 0x0C2A, 0x0C33, 0x0C35, 0x0C39, 0x0C60, 0x0C61, 0x0C85, 0x0C8C, 0x0C8E, 0x0C90, 0x0C92, 0x0CA8, - 0x0CAA, 0x0CB3, 0x0CB5, 0x0CB9, 0x0CE0, 0x0CE1, 0x0D05, 0x0D0C, 0x0D0E, 0x0D10, 0x0D12, 0x0D28, 0x0D2A, - 0x0D39, 0x0D60, 0x0D61, 0x0E01, 0x0E2E, 0x0E32, 0x0E33, 0x0E40, 0x0E45, 0x0E81, 0x0E82, 0x0E87, 0x0E88, - 0x0E94, 0x0E97, 0x0E99, 0x0E9F, 0x0EA1, 0x0EA3, 0x0EAA, 0x0EAB, 0x0EAD, 0x0EAE, 0x0EB2, 0x0EB3, 0x0EC0, - 0x0EC4, 0x0F40, 0x0F47, 0x0F49, 0x0F69, 0x10A0, 0x10C5, 0x10D0, 0x10F6, 0x1102, 0x1103, 0x1105, 0x1107, - 0x110B, 0x110C, 0x110E, 0x1112, 0x1154, 0x1155, 0x115F, 0x1161, 0x116D, 0x116E, 0x1172, 0x1173, 0x11AE, - 0x11AF, 0x11B7, 0x11B8, 0x11BC, 0x11C2, 0x1E00, 0x1E9B, 0x1EA0, 0x1EF9, 0x1F00, 0x1F15, 0x1F18, 0x1F1D, - 0x1F20, 0x1F45, 0x1F48, 0x1F4D, 0x1F50, 0x1F57, 0x1F5F, 0x1F7D, 0x1F80, 0x1FB4, 0x1FB6, 0x1FBC, 0x1FC2, - 0x1FC4, 0x1FC6, 0x1FCC, 0x1FD0, 0x1FD3, 0x1FD6, 0x1FDB, 0x1FE0, 0x1FEC, 0x1FF2, 0x1FF4, 0x1FF6, 0x1FFC, - 0x212A, 0x212B, 0x2180, 0x2182, 0x3041, 0x3094, 0x30A1, 0x30FA, 0x3105, 0x312C, 0xAC00, 0xD7A3, - // Ideographic - 0x3021, 0x3029, 0x4E00, 0x9FA5,}; - int letterChar[] = - { - // BaseChar - 0x0386, 0x038C, 0x03DA, 0x03DC, 0x03DE, 0x03E0, 0x0559, 0x06D5, 0x093D, 0x09B2, 0x0A5E, 0x0A8D, 0x0ABD, - 0x0AE0, 0x0B3D, 0x0B9C, 0x0CDE, 0x0E30, 0x0E84, 0x0E8A, 0x0E8D, 0x0EA5, 0x0EA7, 0x0EB0, 0x0EBD, 0x1100, - 0x1109, 0x113C, 0x113E, 0x1140, 0x114C, 0x114E, 0x1150, 0x1159, 0x1163, 0x1165, 0x1167, 0x1169, 0x1175, - 0x119E, 0x11A8, 0x11AB, 0x11BA, 0x11EB, 0x11F0, 0x11F9, 0x1F59, 0x1F5B, 0x1F5D, 0x1FBE, 0x2126, 0x212E, - // Ideographic - 0x3007,}; - - // - // [87] CombiningChar ::= ... - // - - int combiningCharRange[] = - {0x0300, 0x0345, 0x0360, 0x0361, 0x0483, 0x0486, 0x0591, 0x05A1, 0x05A3, 0x05B9, 0x05BB, 0x05BD, 0x05C1, - 0x05C2, 0x064B, 0x0652, 0x06D6, 0x06DC, 0x06DD, 0x06DF, 0x06E0, 0x06E4, 0x06E7, 0x06E8, 0x06EA, 0x06ED, - 0x0901, 0x0903, 0x093E, 0x094C, 0x0951, 0x0954, 0x0962, 0x0963, 0x0981, 0x0983, 0x09C0, 0x09C4, 0x09C7, - 0x09C8, 0x09CB, 0x09CD, 0x09E2, 0x09E3, 0x0A40, 0x0A42, 0x0A47, 0x0A48, 0x0A4B, 0x0A4D, 0x0A70, 0x0A71, - 0x0A81, 0x0A83, 0x0ABE, 0x0AC5, 0x0AC7, 0x0AC9, 0x0ACB, 0x0ACD, 0x0B01, 0x0B03, 0x0B3E, 0x0B43, 0x0B47, - 0x0B48, 0x0B4B, 0x0B4D, 0x0B56, 0x0B57, 0x0B82, 0x0B83, 0x0BBE, 0x0BC2, 0x0BC6, 0x0BC8, 0x0BCA, 0x0BCD, - 0x0C01, 0x0C03, 0x0C3E, 0x0C44, 0x0C46, 0x0C48, 0x0C4A, 0x0C4D, 0x0C55, 0x0C56, 0x0C82, 0x0C83, 0x0CBE, - 0x0CC4, 0x0CC6, 0x0CC8, 0x0CCA, 0x0CCD, 0x0CD5, 0x0CD6, 0x0D02, 0x0D03, 0x0D3E, 0x0D43, 0x0D46, 0x0D48, - 0x0D4A, 0x0D4D, 0x0E34, 0x0E3A, 0x0E47, 0x0E4E, 0x0EB4, 0x0EB9, 0x0EBB, 0x0EBC, 0x0EC8, 0x0ECD, 0x0F18, - 0x0F19, 0x0F71, 0x0F84, 0x0F86, 0x0F8B, 0x0F90, 0x0F95, 0x0F99, 0x0FAD, 0x0FB1, 0x0FB7, 0x20D0, 0x20DC, - 0x302A, 0x302F,}; - - int combiningCharChar[] = - {0x05BF, 0x05C4, 0x0670, 0x093C, 0x094D, 0x09BC, 0x09BE, 0x09BF, 0x09D7, 0x0A02, 0x0A3C, 0x0A3E, 0x0A3F, - 0x0ABC, 0x0B3C, 0x0BD7, 0x0D57, 0x0E31, 0x0EB1, 0x0F35, 0x0F37, 0x0F39, 0x0F3E, 0x0F3F, 0x0F97, 0x0FB9, - 0x20E1, 0x3099, 0x309A,}; - - // - // [88] Digit ::= ... - // - - int digitRange[] = - {0x0030, 0x0039, 0x0660, 0x0669, 0x06F0, 0x06F9, 0x0966, 0x096F, 0x09E6, 0x09EF, 0x0A66, 0x0A6F, 0x0AE6, - 0x0AEF, 0x0B66, 0x0B6F, 0x0BE7, 0x0BEF, 0x0C66, 0x0C6F, 0x0CE6, 0x0CEF, 0x0D66, 0x0D6F, 0x0E50, 0x0E59, - 0x0ED0, 0x0ED9, 0x0F20, 0x0F29,}; - - // - // [89] Extender ::= ... - // - - int extenderRange[] = {0x3031, 0x3035, 0x309D, 0x309E, 0x30FC, 0x30FE,}; - - int extenderChar[] = {0x00B7, 0x02D0, 0x02D1, 0x0387, 0x0640, 0x0E46, 0x0EC6, 0x3005,}; - - // - // SpecialChar ::= '<', '&', '\n', '\r', ']' - // - - int specialChar[] = {'<', '&', '\n', '\r', ']',}; - - // - // Initialize - // - - // set valid characters - for (int i = 0; i < charRange.length; i += 2) { - for (int j = charRange[i]; j <= charRange[i + 1]; j++) { - CHARS[j] |= MASK_VALID | MASK_CONTENT; - } - } - - // remove special characters - for (int i = 0; i < specialChar.length; i++) { - CHARS[specialChar[i]] = (byte)(CHARS[specialChar[i]] & ~MASK_CONTENT); - } - - // set space characters - for (int i = 0; i < spaceChar.length; i++) { - CHARS[spaceChar[i]] |= MASK_SPACE; - } - - // set name start characters - for (int i = 0; i < nameStartChar.length; i++) { - CHARS[nameStartChar[i]] |= MASK_NAME_START | MASK_NAME | MASK_NCNAME_START | MASK_NCNAME; - } - for (int i = 0; i < letterRange.length; i += 2) { - for (int j = letterRange[i]; j <= letterRange[i + 1]; j++) { - CHARS[j] |= MASK_NAME_START | MASK_NAME | MASK_NCNAME_START | MASK_NCNAME; - } - } - for (int i = 0; i < letterChar.length; i++) { - CHARS[letterChar[i]] |= MASK_NAME_START | MASK_NAME | MASK_NCNAME_START | MASK_NCNAME; - } - - // set name characters - for (int i = 0; i < nameChar.length; i++) { - CHARS[nameChar[i]] |= MASK_NAME | MASK_NCNAME; - } - for (int i = 0; i < digitRange.length; i += 2) { - for (int j = digitRange[i]; j <= digitRange[i + 1]; j++) { - CHARS[j] |= MASK_NAME | MASK_NCNAME; - } - } - for (int i = 0; i < combiningCharRange.length; i += 2) { - for (int j = combiningCharRange[i]; j <= combiningCharRange[i + 1]; j++) { - CHARS[j] |= MASK_NAME | MASK_NCNAME; - } - } - for (int i = 0; i < combiningCharChar.length; i++) { - CHARS[combiningCharChar[i]] |= MASK_NAME | MASK_NCNAME; - } - for (int i = 0; i < extenderRange.length; i += 2) { - for (int j = extenderRange[i]; j <= extenderRange[i + 1]; j++) { - CHARS[j] |= MASK_NAME | MASK_NCNAME; - } - } - for (int i = 0; i < extenderChar.length; i++) { - CHARS[extenderChar[i]] |= MASK_NAME | MASK_NCNAME; - } - - // remove ':' from allowable MASK_NCNAME_START and MASK_NCNAME chars - CHARS[':'] &= ~(MASK_NCNAME_START | MASK_NCNAME); - - // set Pubid characters - for (int i = 0; i < pubidChar.length; i++) { - CHARS[pubidChar[i]] |= MASK_PUBID; - } - for (int i = 0; i < pubidRange.length; i += 2) { - for (int j = pubidRange[i]; j <= pubidRange[i + 1]; j++) { - CHARS[j] |= MASK_PUBID; - } - } - - } // <clinit>() - - // - // Public static methods - // - - /** - * Returns true if the specified character is a supplemental character. - * - * @param c The character to check. - */ - public static boolean isSupplemental(int c) { - return (c >= 0x10000 && c <= 0x10FFFF); - } - - /** - * Returns true the supplemental character corresponding to the given - * surrogates. - * - * @param h The high surrogate. - * @param l The low surrogate. - */ - public static int supplemental(char h, char l) { - return (h - 0xD800) * 0x400 + (l - 0xDC00) + 0x10000; - } - - /** - * Returns the high surrogate of a supplemental character - * - * @param c The supplemental character to "split". - */ - public static char highSurrogate(int c) { - return (char)(((c - 0x00010000) >> 10) + 0xD800); - } - - /** - * Returns the low surrogate of a supplemental character - * - * @param c The supplemental character to "split". - */ - public static char lowSurrogate(int c) { - return (char)(((c - 0x00010000) & 0x3FF) + 0xDC00); - } - - /** - * Returns whether the given character is a high surrogate - * - * @param c The character to check. - */ - public static boolean isHighSurrogate(int c) { - return (0xD800 <= c && c <= 0xDBFF); - } - - /** - * Returns whether the given character is a low surrogate - * - * @param c The character to check. - */ - public static boolean isLowSurrogate(int c) { - return (0xDC00 <= c && c <= 0xDFFF); - } - - /** - * Returns true if the specified character is valid. This method - * also checks the surrogate character range from 0x10000 to 0x10FFFF. - * <p/> - * If the program chooses to apply the mask directly to the - * <code>CHARS</code> array, then they are responsible for checking - * the surrogate character range. - * - * @param c The character to check. - */ - public static boolean isValid(int c) { - return (c < 0x10000 && (CHARS[c] & MASK_VALID) != 0) || (0x10000 <= c && c <= 0x10FFFF); - } // isValid(int):boolean - - /** - * Returns true if the specified character is invalid. - * - * @param c The character to check. - */ - public static boolean isInvalid(int c) { - return !isValid(c); - } // isInvalid(int):boolean - - /** - * Returns true if the specified character can be considered content. - * - * @param c The character to check. - */ - public static boolean isContent(int c) { - return (c < 0x10000 && (CHARS[c] & MASK_CONTENT) != 0) || (0x10000 <= c && c <= 0x10FFFF); - } // isContent(int):boolean - - /** - * Returns true if the specified character can be considered markup. - * Markup characters include '<', '&', and '%'. - * - * @param c The character to check. - */ - public static boolean isMarkup(int c) { - return c == '<' || c == '&' || c == '%'; - } // isMarkup(int):boolean - - /** - * Returns true if the specified character is a space character - * as defined by production [3] in the XML 1.0 specification. - * - * @param c The character to check. - */ - public static boolean isSpace(int c) { - return c < 0x10000 && (CHARS[c] & MASK_SPACE) != 0; - } // isSpace(int):boolean - - /** - * Returns true if the specified character is a space character - * as amdended in the XML 1.1 specification. - * - * @param c The character to check. - */ - public static boolean isXML11Space(int c) { - return (c < 0x10000 && (CHARS[c] & MASK_SPACE) != 0) || c == 0x85 || c == 0x2028; - } // isXML11Space(int):boolean - - /** - * Returns true if the specified character is a valid name start - * character as defined by production [5] in the XML 1.0 - * specification. - * - * @param c The character to check. - */ - public static boolean isNameStart(int c) { - return c < 0x10000 && (CHARS[c] & MASK_NAME_START) != 0; - } // isNameStart(int):boolean - - /** - * Returns true if the specified character is a valid name - * character as defined by production [4] in the XML 1.0 - * specification. - * - * @param c The character to check. - */ - public static boolean isName(int c) { - return c < 0x10000 && (CHARS[c] & MASK_NAME) != 0; - } // isName(int):boolean - - /** - * Returns true if the specified character is a valid NCName start - * character as defined by production [4] in Namespaces in XML - * recommendation. - * - * @param c The character to check. - */ - public static boolean isNCNameStart(int c) { - return c < 0x10000 && (CHARS[c] & MASK_NCNAME_START) != 0; - } // isNCNameStart(int):boolean - - /** - * Returns true if the specified character is a valid NCName - * character as defined by production [5] in Namespaces in XML - * recommendation. - * - * @param c The character to check. - */ - public static boolean isNCName(int c) { - return c < 0x10000 && (CHARS[c] & MASK_NCNAME) != 0; - } // isNCName(int):boolean - - /** - * Returns true if the specified character is a valid Pubid - * character as defined by production [13] in the XML 1.0 - * specification. - * - * @param c The character to check. - */ - public static boolean isPubid(int c) { - return c < 0x10000 && (CHARS[c] & MASK_PUBID) != 0; - } // isPubid(int):boolean - - /* - * [5] Name ::= (Letter | '_' | ':') (NameChar)* - */ - /** - * Check to see if a string is a valid Name according to [5] - * in the XML 1.0 Recommendation - * - * @param name string to check - * @return true if name is a valid Name - */ - public static boolean isValidName(String name) { - if (name.length() == 0) { - return false; - } - char ch = name.charAt(0); - if (!isNameStart(ch)) { - return false; - } - for (int i = 1; i < name.length(); i++) { - ch = name.charAt(i); - if (!isName(ch)) { - return false; - } - } - return true; - } // isValidName(String):boolean - - /* - * from the namespace rec - * [4] NCName ::= (Letter | '_') (NCNameChar)* - */ - /** - * Check to see if a string is a valid NCName according to [4] - * from the XML Namespaces 1.0 Recommendation - * - * @param ncName string to check - * @return true if name is a valid NCName - */ - public static boolean isValidNCName(String ncName) { - if (ncName.length() == 0) { - return false; - } - char ch = ncName.charAt(0); - if (!isNCNameStart(ch)) { - return false; - } - for (int i = 1; i < ncName.length(); i++) { - ch = ncName.charAt(i); - if (!isNCName(ch)) { - return false; - } - } - return true; - } // isValidNCName(String):boolean - - /* - * [7] Nmtoken ::= (NameChar)+ - */ - /** - * Check to see if a string is a valid Nmtoken according to [7] - * in the XML 1.0 Recommendation - * - * @param nmtoken string to check - * @return true if nmtoken is a valid Nmtoken - */ - public static boolean isValidNmtoken(String nmtoken) { - if (nmtoken.length() == 0) { - return false; - } - for (int i = 0; i < nmtoken.length(); i++) { - char ch = nmtoken.charAt(i); - if (!isName(ch)) { - return false; - } - } - return true; - } // isValidName(String):boolean - - // encodings - - /** - * Returns true if the encoding name is a valid IANA encoding. - * This method does not verify that there is a decoder available - * for this encoding, only that the characters are valid for an - * IANA encoding name. - * - * @param ianaEncoding The IANA encoding name. - */ - public static boolean isValidIANAEncoding(String ianaEncoding) { - if (ianaEncoding != null) { - int length = ianaEncoding.length(); - if (length > 0) { - char c = ianaEncoding.charAt(0); - if ((c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z')) { - for (int i = 1; i < length; i++) { - c = ianaEncoding.charAt(i); - if ((c < 'A' || c > 'Z') && (c < 'a' || c > 'z') - && (c < '0' || c > '9') - && c != '.' - && c != '_' - && c != '-') { - return false; - } - } - return true; - } - } - } - return false; - } // isValidIANAEncoding(String):boolean - - /** - * Returns true if the encoding name is a valid Java encoding. - * This method does not verify that there is a decoder available - * for this encoding, only that the characters are valid for an - * Java encoding name. - * - * @param javaEncoding The Java encoding name. - */ - public static boolean isValidJavaEncoding(String javaEncoding) { - if (javaEncoding != null) { - int length = javaEncoding.length(); - if (length > 0) { - for (int i = 1; i < length; i++) { - char c = javaEncoding.charAt(i); - if ((c < 'A' || c > 'Z') && (c < 'a' || c > 'z') - && (c < '0' || c > '9') - && c != '.' - && c != '_' - && c != '-') { - return false; - } - } - return true; - } - } - return false; - } // isValidIANAEncoding(String):boolean - -} // class XMLChar |