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commons-lang-2.6.jar - Apache Commons Lang
commons-lang-2.6.jar is the JAR file for Apache Commons Lang 2.6, which provides a host of helper utilities for the java.lang API.
JAR File Size and Download Location:
File name: commons-lang-2.6.jar File size: 284220 bytes Date modified: 01/13/2011 Download: Apache Commons Lang Website
✍: FYIcenter
⏎ org/apache/commons/lang/Entities.java
/* * 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.commons.lang; import java.io.IOException; import java.io.StringWriter; import java.io.Writer; import java.util.HashMap; import java.util.Map; import java.util.TreeMap; /** * <p> * Provides HTML and XML entity utilities. * </p> * * @see <a href="http://hotwired.lycos.com/webmonkey/reference/special_characters/">ISO Entities</a> * @see <a href="http://www.w3.org/TR/REC-html32#latin1">HTML 3.2 Character Entities for ISO Latin-1</a> * @see <a href="http://www.w3.org/TR/REC-html40/sgml/entities.html">HTML 4.0 Character entity references</a> * @see <a href="http://www.w3.org/TR/html401/charset.html#h-5.3">HTML 4.01 Character References</a> * @see <a href="http://www.w3.org/TR/html401/charset.html#code-position">HTML 4.01 Code positions</a> * * @author <a href="mailto:alex@purpletech.com">Alexander Day Chaffee</a> * @author <a href="mailto:ggregory@seagullsw.com">Gary Gregory</a> * @since 2.0 * @version $Id: Entities.java 1057037 2011-01-09 21:35:32Z niallp $ */ class Entities { private static final String[][] BASIC_ARRAY = {{"quot", "34"}, // " - double-quote {"amp", "38"}, // & - ampersand {"lt", "60"}, // < - less-than {"gt", "62"}, // > - greater-than }; private static final String[][] APOS_ARRAY = {{"apos", "39"}, // XML apostrophe }; // package scoped for testing static final String[][] ISO8859_1_ARRAY = {{"nbsp", "160"}, // non-breaking space {"iexcl", "161"}, // inverted exclamation mark {"cent", "162"}, // cent sign {"pound", "163"}, // pound sign {"curren", "164"}, // currency sign {"yen", "165"}, // yen sign = yuan sign {"brvbar", "166"}, // broken bar = broken vertical bar {"sect", "167"}, // section sign {"uml", "168"}, // diaeresis = spacing diaeresis {"copy", "169"}, // � - copyright sign {"ordf", "170"}, // feminine ordinal indicator {"laquo", "171"}, // left-pointing double angle quotation mark = left pointing guillemet {"not", "172"}, // not sign {"shy", "173"}, // soft hyphen = discretionary hyphen {"reg", "174"}, // � - registered trademark sign {"macr", "175"}, // macron = spacing macron = overline = APL overbar {"deg", "176"}, // degree sign {"plusmn", "177"}, // plus-minus sign = plus-or-minus sign {"sup2", "178"}, // superscript two = superscript digit two = squared {"sup3", "179"}, // superscript three = superscript digit three = cubed {"acute", "180"}, // acute accent = spacing acute {"micro", "181"}, // micro sign {"para", "182"}, // pilcrow sign = paragraph sign {"middot", "183"}, // middle dot = Georgian comma = Greek middle dot {"cedil", "184"}, // cedilla = spacing cedilla {"sup1", "185"}, // superscript one = superscript digit one {"ordm", "186"}, // masculine ordinal indicator {"raquo", "187"}, // right-pointing double angle quotation mark = right pointing guillemet {"frac14", "188"}, // vulgar fraction one quarter = fraction one quarter {"frac12", "189"}, // vulgar fraction one half = fraction one half {"frac34", "190"}, // vulgar fraction three quarters = fraction three quarters {"iquest", "191"}, // inverted question mark = turned question mark {"Agrave", "192"}, // � - uppercase A, grave accent {"Aacute", "193"}, // � - uppercase A, acute accent {"Acirc", "194"}, // � - uppercase A, circumflex accent {"Atilde", "195"}, // � - uppercase A, tilde {"Auml", "196"}, // � - uppercase A, umlaut {"Aring", "197"}, // � - uppercase A, ring {"AElig", "198"}, // � - uppercase AE {"Ccedil", "199"}, // � - uppercase C, cedilla {"Egrave", "200"}, // � - uppercase E, grave accent {"Eacute", "201"}, // � - uppercase E, acute accent {"Ecirc", "202"}, // � - uppercase E, circumflex accent {"Euml", "203"}, // � - uppercase E, umlaut {"Igrave", "204"}, // � - uppercase I, grave accent {"Iacute", "205"}, // � - uppercase I, acute accent {"Icirc", "206"}, // � - uppercase I, circumflex accent {"Iuml", "207"}, // � - uppercase I, umlaut {"ETH", "208"}, // � - uppercase Eth, Icelandic {"Ntilde", "209"}, // � - uppercase N, tilde {"Ograve", "210"}, // � - uppercase O, grave accent {"Oacute", "211"}, // � - uppercase O, acute accent {"Ocirc", "212"}, // � - uppercase O, circumflex accent {"Otilde", "213"}, // � - uppercase O, tilde {"Ouml", "214"}, // � - uppercase O, umlaut {"times", "215"}, // multiplication sign {"Oslash", "216"}, // � - uppercase O, slash {"Ugrave", "217"}, // � - uppercase U, grave accent {"Uacute", "218"}, // � - uppercase U, acute accent {"Ucirc", "219"}, // � - uppercase U, circumflex accent {"Uuml", "220"}, // � - uppercase U, umlaut {"Yacute", "221"}, // � - uppercase Y, acute accent {"THORN", "222"}, // � - uppercase THORN, Icelandic {"szlig", "223"}, // � - lowercase sharps, German {"agrave", "224"}, // � - lowercase a, grave accent {"aacute", "225"}, // � - lowercase a, acute accent {"acirc", "226"}, // � - lowercase a, circumflex accent {"atilde", "227"}, // � - lowercase a, tilde {"auml", "228"}, // � - lowercase a, umlaut {"aring", "229"}, // � - lowercase a, ring {"aelig", "230"}, // � - lowercase ae {"ccedil", "231"}, // � - lowercase c, cedilla {"egrave", "232"}, // � - lowercase e, grave accent {"eacute", "233"}, // � - lowercase e, acute accent {"ecirc", "234"}, // � - lowercase e, circumflex accent {"euml", "235"}, // � - lowercase e, umlaut {"igrave", "236"}, // � - lowercase i, grave accent {"iacute", "237"}, // � - lowercase i, acute accent {"icirc", "238"}, // � - lowercase i, circumflex accent {"iuml", "239"}, // � - lowercase i, umlaut {"eth", "240"}, // � - lowercase eth, Icelandic {"ntilde", "241"}, // � - lowercase n, tilde {"ograve", "242"}, // � - lowercase o, grave accent {"oacute", "243"}, // � - lowercase o, acute accent {"ocirc", "244"}, // � - lowercase o, circumflex accent {"otilde", "245"}, // � - lowercase o, tilde {"ouml", "246"}, // � - lowercase o, umlaut {"divide", "247"}, // division sign {"oslash", "248"}, // � - lowercase o, slash {"ugrave", "249"}, // � - lowercase u, grave accent {"uacute", "250"}, // � - lowercase u, acute accent {"ucirc", "251"}, // � - lowercase u, circumflex accent {"uuml", "252"}, // � - lowercase u, umlaut {"yacute", "253"}, // � - lowercase y, acute accent {"thorn", "254"}, // � - lowercase thorn, Icelandic {"yuml", "255"}, // � - lowercase y, umlaut }; // http://www.w3.org/TR/REC-html40/sgml/entities.html // package scoped for testing static final String[][] HTML40_ARRAY = { // <!-- Latin Extended-B --> {"fnof", "402"}, // latin small f with hook = function= florin, U+0192 ISOtech --> // <!-- Greek --> {"Alpha", "913"}, // greek capital letter alpha, U+0391 --> {"Beta", "914"}, // greek capital letter beta, U+0392 --> {"Gamma", "915"}, // greek capital letter gamma,U+0393 ISOgrk3 --> {"Delta", "916"}, // greek capital letter delta,U+0394 ISOgrk3 --> {"Epsilon", "917"}, // greek capital letter epsilon, U+0395 --> {"Zeta", "918"}, // greek capital letter zeta, U+0396 --> {"Eta", "919"}, // greek capital letter eta, U+0397 --> {"Theta", "920"}, // greek capital letter theta,U+0398 ISOgrk3 --> {"Iota", "921"}, // greek capital letter iota, U+0399 --> {"Kappa", "922"}, // greek capital letter kappa, U+039A --> {"Lambda", "923"}, // greek capital letter lambda,U+039B ISOgrk3 --> {"Mu", "924"}, // greek capital letter mu, U+039C --> {"Nu", "925"}, // greek capital letter nu, U+039D --> {"Xi", "926"}, // greek capital letter xi, U+039E ISOgrk3 --> {"Omicron", "927"}, // greek capital letter omicron, U+039F --> {"Pi", "928"}, // greek capital letter pi, U+03A0 ISOgrk3 --> {"Rho", "929"}, // greek capital letter rho, U+03A1 --> // <!-- there is no Sigmaf, and no U+03A2 character either --> {"Sigma", "931"}, // greek capital letter sigma,U+03A3 ISOgrk3 --> {"Tau", "932"}, // greek capital letter tau, U+03A4 --> {"Upsilon", "933"}, // greek capital letter upsilon,U+03A5 ISOgrk3 --> {"Phi", "934"}, // greek capital letter phi,U+03A6 ISOgrk3 --> {"Chi", "935"}, // greek capital letter chi, U+03A7 --> {"Psi", "936"}, // greek capital letter psi,U+03A8 ISOgrk3 --> {"Omega", "937"}, // greek capital letter omega,U+03A9 ISOgrk3 --> {"alpha", "945"}, // greek small letter alpha,U+03B1 ISOgrk3 --> {"beta", "946"}, // greek small letter beta, U+03B2 ISOgrk3 --> {"gamma", "947"}, // greek small letter gamma,U+03B3 ISOgrk3 --> {"delta", "948"}, // greek small letter delta,U+03B4 ISOgrk3 --> {"epsilon", "949"}, // greek small letter epsilon,U+03B5 ISOgrk3 --> {"zeta", "950"}, // greek small letter zeta, U+03B6 ISOgrk3 --> {"eta", "951"}, // greek small letter eta, U+03B7 ISOgrk3 --> {"theta", "952"}, // greek small letter theta,U+03B8 ISOgrk3 --> {"iota", "953"}, // greek small letter iota, U+03B9 ISOgrk3 --> {"kappa", "954"}, // greek small letter kappa,U+03BA ISOgrk3 --> {"lambda", "955"}, // greek small letter lambda,U+03BB ISOgrk3 --> {"mu", "956"}, // greek small letter mu, U+03BC ISOgrk3 --> {"nu", "957"}, // greek small letter nu, U+03BD ISOgrk3 --> {"xi", "958"}, // greek small letter xi, U+03BE ISOgrk3 --> {"omicron", "959"}, // greek small letter omicron, U+03BF NEW --> {"pi", "960"}, // greek small letter pi, U+03C0 ISOgrk3 --> {"rho", "961"}, // greek small letter rho, U+03C1 ISOgrk3 --> {"sigmaf", "962"}, // greek small letter final sigma,U+03C2 ISOgrk3 --> {"sigma", "963"}, // greek small letter sigma,U+03C3 ISOgrk3 --> {"tau", "964"}, // greek small letter tau, U+03C4 ISOgrk3 --> {"upsilon", "965"}, // greek small letter upsilon,U+03C5 ISOgrk3 --> {"phi", "966"}, // greek small letter phi, U+03C6 ISOgrk3 --> {"chi", "967"}, // greek small letter chi, U+03C7 ISOgrk3 --> {"psi", "968"}, // greek small letter psi, U+03C8 ISOgrk3 --> {"omega", "969"}, // greek small letter omega,U+03C9 ISOgrk3 --> {"thetasym", "977"}, // greek small letter theta symbol,U+03D1 NEW --> {"upsih", "978"}, // greek upsilon with hook symbol,U+03D2 NEW --> {"piv", "982"}, // greek pi symbol, U+03D6 ISOgrk3 --> // <!-- General Punctuation --> {"bull", "8226"}, // bullet = black small circle,U+2022 ISOpub --> // <!-- bullet is NOT the same as bullet operator, U+2219 --> {"hellip", "8230"}, // horizontal ellipsis = three dot leader,U+2026 ISOpub --> {"prime", "8242"}, // prime = minutes = feet, U+2032 ISOtech --> {"Prime", "8243"}, // double prime = seconds = inches,U+2033 ISOtech --> {"oline", "8254"}, // overline = spacing overscore,U+203E NEW --> {"frasl", "8260"}, // fraction slash, U+2044 NEW --> // <!-- Letterlike Symbols --> {"weierp", "8472"}, // script capital P = power set= Weierstrass p, U+2118 ISOamso --> {"image", "8465"}, // blackletter capital I = imaginary part,U+2111 ISOamso --> {"real", "8476"}, // blackletter capital R = real part symbol,U+211C ISOamso --> {"trade", "8482"}, // trade mark sign, U+2122 ISOnum --> {"alefsym", "8501"}, // alef symbol = first transfinite cardinal,U+2135 NEW --> // <!-- alef symbol is NOT the same as hebrew letter alef,U+05D0 although the // same glyph could be used to depict both characters --> // <!-- Arrows --> {"larr", "8592"}, // leftwards arrow, U+2190 ISOnum --> {"uarr", "8593"}, // upwards arrow, U+2191 ISOnum--> {"rarr", "8594"}, // rightwards arrow, U+2192 ISOnum --> {"darr", "8595"}, // downwards arrow, U+2193 ISOnum --> {"harr", "8596"}, // left right arrow, U+2194 ISOamsa --> {"crarr", "8629"}, // downwards arrow with corner leftwards= carriage return, U+21B5 NEW --> {"lArr", "8656"}, // leftwards double arrow, U+21D0 ISOtech --> // <!-- ISO 10646 does not say that lArr is the same as the 'is implied by' // arrow but also does not have any other character for that function. // So ? lArr canbe used for 'is implied by' as ISOtech suggests --> {"uArr", "8657"}, // upwards double arrow, U+21D1 ISOamsa --> {"rArr", "8658"}, // rightwards double arrow,U+21D2 ISOtech --> // <!-- ISO 10646 does not say this is the 'implies' character but does not // have another character with this function so ?rArr can be used for // 'implies' as ISOtech suggests --> {"dArr", "8659"}, // downwards double arrow, U+21D3 ISOamsa --> {"hArr", "8660"}, // left right double arrow,U+21D4 ISOamsa --> // <!-- Mathematical Operators --> {"forall", "8704"}, // for all, U+2200 ISOtech --> {"part", "8706"}, // partial differential, U+2202 ISOtech --> {"exist", "8707"}, // there exists, U+2203 ISOtech --> {"empty", "8709"}, // empty set = null set = diameter,U+2205 ISOamso --> {"nabla", "8711"}, // nabla = backward difference,U+2207 ISOtech --> {"isin", "8712"}, // element of, U+2208 ISOtech --> {"notin", "8713"}, // not an element of, U+2209 ISOtech --> {"ni", "8715"}, // contains as member, U+220B ISOtech --> // <!-- should there be a more memorable name than 'ni'? --> {"prod", "8719"}, // n-ary product = product sign,U+220F ISOamsb --> // <!-- prod is NOT the same character as U+03A0 'greek capital letter pi' // though the same glyph might be used for both --> {"sum", "8721"}, // n-ary summation, U+2211 ISOamsb --> // <!-- sum is NOT the same character as U+03A3 'greek capital letter sigma' // though the same glyph might be used for both --> {"minus", "8722"}, // minus sign, U+2212 ISOtech --> {"lowast", "8727"}, // asterisk operator, U+2217 ISOtech --> {"radic", "8730"}, // square root = radical sign,U+221A ISOtech --> {"prop", "8733"}, // proportional to, U+221D ISOtech --> {"infin", "8734"}, // infinity, U+221E ISOtech --> {"ang", "8736"}, // angle, U+2220 ISOamso --> {"and", "8743"}, // logical and = wedge, U+2227 ISOtech --> {"or", "8744"}, // logical or = vee, U+2228 ISOtech --> {"cap", "8745"}, // intersection = cap, U+2229 ISOtech --> {"cup", "8746"}, // union = cup, U+222A ISOtech --> {"int", "8747"}, // integral, U+222B ISOtech --> {"there4", "8756"}, // therefore, U+2234 ISOtech --> {"sim", "8764"}, // tilde operator = varies with = similar to,U+223C ISOtech --> // <!-- tilde operator is NOT the same character as the tilde, U+007E,although // the same glyph might be used to represent both --> {"cong", "8773"}, // approximately equal to, U+2245 ISOtech --> {"asymp", "8776"}, // almost equal to = asymptotic to,U+2248 ISOamsr --> {"ne", "8800"}, // not equal to, U+2260 ISOtech --> {"equiv", "8801"}, // identical to, U+2261 ISOtech --> {"le", "8804"}, // less-than or equal to, U+2264 ISOtech --> {"ge", "8805"}, // greater-than or equal to,U+2265 ISOtech --> {"sub", "8834"}, // subset of, U+2282 ISOtech --> {"sup", "8835"}, // superset of, U+2283 ISOtech --> // <!-- note that nsup, 'not a superset of, U+2283' is not covered by the // Symbol font encoding and is not included. Should it be, for symmetry? // It is in ISOamsn --> <!ENTITY nsub", "8836"}, // not a subset of, U+2284 ISOamsn --> {"sube", "8838"}, // subset of or equal to, U+2286 ISOtech --> {"supe", "8839"}, // superset of or equal to,U+2287 ISOtech --> {"oplus", "8853"}, // circled plus = direct sum,U+2295 ISOamsb --> {"otimes", "8855"}, // circled times = vector product,U+2297 ISOamsb --> {"perp", "8869"}, // up tack = orthogonal to = perpendicular,U+22A5 ISOtech --> {"sdot", "8901"}, // dot operator, U+22C5 ISOamsb --> // <!-- dot operator is NOT the same character as U+00B7 middle dot --> // <!-- Miscellaneous Technical --> {"lceil", "8968"}, // left ceiling = apl upstile,U+2308 ISOamsc --> {"rceil", "8969"}, // right ceiling, U+2309 ISOamsc --> {"lfloor", "8970"}, // left floor = apl downstile,U+230A ISOamsc --> {"rfloor", "8971"}, // right floor, U+230B ISOamsc --> {"lang", "9001"}, // left-pointing angle bracket = bra,U+2329 ISOtech --> // <!-- lang is NOT the same character as U+003C 'less than' or U+2039 'single left-pointing angle quotation // mark' --> {"rang", "9002"}, // right-pointing angle bracket = ket,U+232A ISOtech --> // <!-- rang is NOT the same character as U+003E 'greater than' or U+203A // 'single right-pointing angle quotation mark' --> // <!-- Geometric Shapes --> {"loz", "9674"}, // lozenge, U+25CA ISOpub --> // <!-- Miscellaneous Symbols --> {"spades", "9824"}, // black spade suit, U+2660 ISOpub --> // <!-- black here seems to mean filled as opposed to hollow --> {"clubs", "9827"}, // black club suit = shamrock,U+2663 ISOpub --> {"hearts", "9829"}, // black heart suit = valentine,U+2665 ISOpub --> {"diams", "9830"}, // black diamond suit, U+2666 ISOpub --> // <!-- Latin Extended-A --> {"OElig", "338"}, // -- latin capital ligature OE,U+0152 ISOlat2 --> {"oelig", "339"}, // -- latin small ligature oe, U+0153 ISOlat2 --> // <!-- ligature is a misnomer, this is a separate character in some languages --> {"Scaron", "352"}, // -- latin capital letter S with caron,U+0160 ISOlat2 --> {"scaron", "353"}, // -- latin small letter s with caron,U+0161 ISOlat2 --> {"Yuml", "376"}, // -- latin capital letter Y with diaeresis,U+0178 ISOlat2 --> // <!-- Spacing Modifier Letters --> {"circ", "710"}, // -- modifier letter circumflex accent,U+02C6 ISOpub --> {"tilde", "732"}, // small tilde, U+02DC ISOdia --> // <!-- General Punctuation --> {"ensp", "8194"}, // en space, U+2002 ISOpub --> {"emsp", "8195"}, // em space, U+2003 ISOpub --> {"thinsp", "8201"}, // thin space, U+2009 ISOpub --> {"zwnj", "8204"}, // zero width non-joiner,U+200C NEW RFC 2070 --> {"zwj", "8205"}, // zero width joiner, U+200D NEW RFC 2070 --> {"lrm", "8206"}, // left-to-right mark, U+200E NEW RFC 2070 --> {"rlm", "8207"}, // right-to-left mark, U+200F NEW RFC 2070 --> {"ndash", "8211"}, // en dash, U+2013 ISOpub --> {"mdash", "8212"}, // em dash, U+2014 ISOpub --> {"lsquo", "8216"}, // left single quotation mark,U+2018 ISOnum --> {"rsquo", "8217"}, // right single quotation mark,U+2019 ISOnum --> {"sbquo", "8218"}, // single low-9 quotation mark, U+201A NEW --> {"ldquo", "8220"}, // left double quotation mark,U+201C ISOnum --> {"rdquo", "8221"}, // right double quotation mark,U+201D ISOnum --> {"bdquo", "8222"}, // double low-9 quotation mark, U+201E NEW --> {"dagger", "8224"}, // dagger, U+2020 ISOpub --> {"Dagger", "8225"}, // double dagger, U+2021 ISOpub --> {"permil", "8240"}, // per mille sign, U+2030 ISOtech --> {"lsaquo", "8249"}, // single left-pointing angle quotation mark,U+2039 ISO proposed --> // <!-- lsaquo is proposed but not yet ISO standardized --> {"rsaquo", "8250"}, // single right-pointing angle quotation mark,U+203A ISO proposed --> // <!-- rsaquo is proposed but not yet ISO standardized --> {"euro", "8364"}, // -- euro sign, U+20AC NEW --> }; /** * <p> * The set of entities supported by standard XML. * </p> */ public static final Entities XML; /** * <p> * The set of entities supported by HTML 3.2. * </p> */ public static final Entities HTML32; /** * <p> * The set of entities supported by HTML 4.0. * </p> */ public static final Entities HTML40; static { Entities xml = new Entities(); xml.addEntities(BASIC_ARRAY); xml.addEntities(APOS_ARRAY); XML = xml; } static { Entities html32 = new Entities(); html32.addEntities(BASIC_ARRAY); html32.addEntities(ISO8859_1_ARRAY); HTML32 = html32; } static { Entities html40 = new Entities(); fillWithHtml40Entities(html40); HTML40 = html40; } /** * <p> * Fills the specified entities instance with HTML 40 entities. * </p> * * @param entities * the instance to be filled. */ static void fillWithHtml40Entities(Entities entities) { entities.addEntities(BASIC_ARRAY); entities.addEntities(ISO8859_1_ARRAY); entities.addEntities(HTML40_ARRAY); } static interface EntityMap { /** * <p> * Add an entry to this entity map. * </p> * * @param name * the entity name * @param value * the entity value */ void add(String name, int value); /** * <p> * Returns the name of the entity identified by the specified value. * </p> * * @param value * the value to locate * @return entity name associated with the specified value */ String name(int value); /** * <p> * Returns the value of the entity identified by the specified name. * </p> * * @param name * the name to locate * @return entity value associated with the specified name */ int value(String name); } static class PrimitiveEntityMap implements EntityMap { private final Map mapNameToValue = new HashMap(); private final IntHashMap mapValueToName = new IntHashMap(); /** * {@inheritDoc} */ // TODO not thread-safe as there is a window between changing the two maps public void add(String name, int value) { mapNameToValue.put(name, new Integer(value)); mapValueToName.put(value, name); } /** * {@inheritDoc} */ public String name(int value) { return (String) mapValueToName.get(value); } /** * {@inheritDoc} */ public int value(String name) { Object value = mapNameToValue.get(name); if (value == null) { return -1; } return ((Integer) value).intValue(); } } static abstract class MapIntMap implements Entities.EntityMap { protected final Map mapNameToValue; protected final Map mapValueToName; /** * Construct a new instance with specified maps. * * @param nameToValue name to value map * @param valueToName value to namee map */ MapIntMap(Map nameToValue, Map valueToName){ mapNameToValue = nameToValue; mapValueToName = valueToName; } /** * {@inheritDoc} */ public void add(String name, int value) { mapNameToValue.put(name, new Integer(value)); mapValueToName.put(new Integer(value), name); } /** * {@inheritDoc} */ public String name(int value) { return (String) mapValueToName.get(new Integer(value)); } /** * {@inheritDoc} */ public int value(String name) { Object value = mapNameToValue.get(name); if (value == null) { return -1; } return ((Integer) value).intValue(); } } static class HashEntityMap extends MapIntMap { /** * Constructs a new instance of <code>HashEntityMap</code>. */ public HashEntityMap() { super(new HashMap(), new HashMap()); } } static class TreeEntityMap extends MapIntMap { /** * Constructs a new instance of <code>TreeEntityMap</code>. */ public TreeEntityMap() { super(new TreeMap(), new TreeMap()); } } static class LookupEntityMap extends PrimitiveEntityMap { // TODO this class is not thread-safe private String[] lookupTable; private static final int LOOKUP_TABLE_SIZE = 256; /** * {@inheritDoc} */ public String name(int value) { if (value < LOOKUP_TABLE_SIZE) { return lookupTable()[value]; } return super.name(value); } /** * <p> * Returns the lookup table for this entity map. The lookup table is created if it has not been previously. * </p> * * @return the lookup table */ private String[] lookupTable() { if (lookupTable == null) { createLookupTable(); } return lookupTable; } /** * <p> * Creates an entity lookup table of LOOKUP_TABLE_SIZE elements, initialized with entity names. * </p> */ private void createLookupTable() { lookupTable = new String[LOOKUP_TABLE_SIZE]; for (int i = 0; i < LOOKUP_TABLE_SIZE; ++i) { lookupTable[i] = super.name(i); } } } static class ArrayEntityMap implements EntityMap { // TODO this class is not thread-safe protected final int growBy; protected int size = 0; protected String[] names; protected int[] values; /** * Constructs a new instance of <code>ArrayEntityMap</code>. */ public ArrayEntityMap() { this.growBy = 100; names = new String[growBy]; values = new int[growBy]; } /** * Constructs a new instance of <code>ArrayEntityMap</code> specifying the size by which the array should * grow. * * @param growBy * array will be initialized to and will grow by this amount */ public ArrayEntityMap(int growBy) { this.growBy = growBy; names = new String[growBy]; values = new int[growBy]; } /** * {@inheritDoc} */ public void add(String name, int value) { ensureCapacity(size + 1); names[size] = name; values[size] = value; size++; } /** * Verifies the capacity of the entity array, adjusting the size if necessary. * * @param capacity * size the array should be */ protected void ensureCapacity(int capacity) { if (capacity > names.length) { int newSize = Math.max(capacity, size + growBy); String[] newNames = new String[newSize]; System.arraycopy(names, 0, newNames, 0, size); names = newNames; int[] newValues = new int[newSize]; System.arraycopy(values, 0, newValues, 0, size); values = newValues; } } /** * {@inheritDoc} */ public String name(int value) { for (int i = 0; i < size; ++i) { if (values[i] == value) { return names[i]; } } return null; } /** * {@inheritDoc} */ public int value(String name) { for (int i = 0; i < size; ++i) { if (names[i].equals(name)) { return values[i]; } } return -1; } } static class BinaryEntityMap extends ArrayEntityMap { // TODO - not thread-safe, because parent is not. Also references size. /** * Constructs a new instance of <code>BinaryEntityMap</code>. */ public BinaryEntityMap() { super(); } /** * Constructs a new instance of <code>ArrayEntityMap</code> specifying the size by which the underlying array * should grow. * * @param growBy * array will be initialized to and will grow by this amount */ public BinaryEntityMap(int growBy) { super(growBy); } /** * Performs a binary search of the entity array for the specified key. This method is based on code in * {@link java.util.Arrays}. * * @param key * the key to be found * @return the index of the entity array matching the specified key */ private int binarySearch(int key) { int low = 0; int high = size - 1; while (low <= high) { int mid = (low + high) >>> 1; int midVal = values[mid]; if (midVal < key) { low = mid + 1; } else if (midVal > key) { high = mid - 1; } else { return mid; // key found } } return -(low + 1); // key not found. } /** * {@inheritDoc} */ public void add(String name, int value) { ensureCapacity(size + 1); int insertAt = binarySearch(value); if (insertAt > 0) { return; // note: this means you can't insert the same value twice } insertAt = -(insertAt + 1); // binarySearch returns it negative and off-by-one System.arraycopy(values, insertAt, values, insertAt + 1, size - insertAt); values[insertAt] = value; System.arraycopy(names, insertAt, names, insertAt + 1, size - insertAt); names[insertAt] = name; size++; } /** * {@inheritDoc} */ public String name(int value) { int index = binarySearch(value); if (index < 0) { return null; } return names[index]; } } private final EntityMap map; /** * Default constructor. */ public Entities(){ map = new Entities.LookupEntityMap(); } /** * package scoped constructor for testing. * * @param emap entity map. */ Entities(EntityMap emap){ map = emap; } /** * <p> * Adds entities to this entity. * </p> * * @param entityArray * array of entities to be added */ public void addEntities(String[][] entityArray) { for (int i = 0; i < entityArray.length; ++i) { addEntity(entityArray[i][0], Integer.parseInt(entityArray[i][1])); } } /** * <p> * Add an entity to this entity. * </p> * * @param name * name of the entity * @param value * vale of the entity */ public void addEntity(String name, int value) { map.add(name, value); } /** * <p> * Returns the name of the entity identified by the specified value. * </p> * * @param value * the value to locate * @return entity name associated with the specified value */ public String entityName(int value) { return map.name(value); } /** * <p> * Returns the value of the entity identified by the specified name. * </p> * * @param name * the name to locate * @return entity value associated with the specified name */ public int entityValue(String name) { return map.value(name); } /** * <p> * Escapes the characters in a <code>String</code>. * </p> * * <p> * For example, if you have called addEntity("foo", 0xA1), escape("\u00A1") will return * "&foo;" * </p> * * @param str * The <code>String</code> to escape. * @return A new escaped <code>String</code>. */ public String escape(String str) { StringWriter stringWriter = createStringWriter(str); try { this.escape(stringWriter, str); } catch (IOException e) { // This should never happen because ALL the StringWriter methods called by #escape(Writer, String) do not // throw IOExceptions. throw new UnhandledException(e); } return stringWriter.toString(); } /** * <p> * Escapes the characters in the <code>String</code> passed and writes the result to the <code>Writer</code> * passed. * </p> * * @param writer * The <code>Writer</code> to write the results of the escaping to. Assumed to be a non-null value. * @param str * The <code>String</code> to escape. Assumed to be a non-null value. * @throws IOException * when <code>Writer</code> passed throws the exception from calls to the {@link Writer#write(int)} * methods. * * @see #escape(String) * @see Writer */ public void escape(Writer writer, String str) throws IOException { int len = str.length(); for (int i = 0; i < len; i++) { char c = str.charAt(i); String entityName = this.entityName(c); if (entityName == null) { if (c > 0x7F) { writer.write("&#"); writer.write(Integer.toString(c, 10)); writer.write(';'); } else { writer.write(c); } } else { writer.write('&'); writer.write(entityName); writer.write(';'); } } } /** * <p> * Unescapes the entities in a <code>String</code>. * </p> * * <p> * For example, if you have called addEntity("foo", 0xA1), unescape("&foo;") will return * "\u00A1" * </p> * * @param str * The <code>String</code> to escape. * @return A new escaped <code>String</code>. */ public String unescape(String str) { int firstAmp = str.indexOf('&'); if (firstAmp < 0) { return str; } else { StringWriter stringWriter = createStringWriter(str); try { this.doUnescape(stringWriter, str, firstAmp); } catch (IOException e) { // This should never happen because ALL the StringWriter methods called by #escape(Writer, String) // do not throw IOExceptions. throw new UnhandledException(e); } return stringWriter.toString(); } } /** * Make the StringWriter 10% larger than the source String to avoid growing the writer * * @param str The source string * @return A newly created StringWriter */ private StringWriter createStringWriter(String str) { return new StringWriter((int) (str.length() + (str.length() * 0.1))); } /** * <p> * Unescapes the escaped entities in the <code>String</code> passed and writes the result to the * <code>Writer</code> passed. * </p> * * @param writer * The <code>Writer</code> to write the results to; assumed to be non-null. * @param str * The source <code>String</code> to unescape; assumed to be non-null. * @throws IOException * when <code>Writer</code> passed throws the exception from calls to the {@link Writer#write(int)} * methods. * * @see #escape(String) * @see Writer */ public void unescape(Writer writer, String str) throws IOException { int firstAmp = str.indexOf('&'); if (firstAmp < 0) { writer.write(str); return; } else { doUnescape(writer, str, firstAmp); } } /** * Underlying unescape method that allows the optimisation of not starting from the 0 index again. * * @param writer * The <code>Writer</code> to write the results to; assumed to be non-null. * @param str * The source <code>String</code> to unescape; assumed to be non-null. * @param firstAmp * The <code>int</code> index of the first ampersand in the source String. * @throws IOException * when <code>Writer</code> passed throws the exception from calls to the {@link Writer#write(int)} * methods. */ private void doUnescape(Writer writer, String str, int firstAmp) throws IOException { writer.write(str, 0, firstAmp); int len = str.length(); for (int i = firstAmp; i < len; i++) { char c = str.charAt(i); if (c == '&') { int nextIdx = i + 1; int semiColonIdx = str.indexOf(';', nextIdx); if (semiColonIdx == -1) { writer.write(c); continue; } int amphersandIdx = str.indexOf('&', i + 1); if (amphersandIdx != -1 && amphersandIdx < semiColonIdx) { // Then the text looks like &...&...; writer.write(c); continue; } String entityContent = str.substring(nextIdx, semiColonIdx); int entityValue = -1; int entityContentLen = entityContent.length(); if (entityContentLen > 0) { if (entityContent.charAt(0) == '#') { // escaped value content is an integer (decimal or // hexidecimal) if (entityContentLen > 1) { char isHexChar = entityContent.charAt(1); try { switch (isHexChar) { case 'X' : case 'x' : { entityValue = Integer.parseInt(entityContent.substring(2), 16); break; } default : { entityValue = Integer.parseInt(entityContent.substring(1), 10); } } if (entityValue > 0xFFFF) { entityValue = -1; } } catch (NumberFormatException e) { entityValue = -1; } } } else { // escaped value content is an entity name entityValue = this.entityValue(entityContent); } } if (entityValue == -1) { writer.write('&'); writer.write(entityContent); writer.write(';'); } else { writer.write(entityValue); } i = semiColonIdx; // move index up to the semi-colon } else { writer.write(c); } } } }
⏎ org/apache/commons/lang/Entities.java
⇒ commons-lang-1.0.1.jar - Apache Commons Lang
⇐ What Is commons-lang3-3.1.jar
2009-12-24, 80064👍, 0💬
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