| New file |
|---|
| 0,0 → 1,217 |
|---|
| package pt.estgp.estgweb.utils; |
| |
| import java.io.StringWriter; |
| import java.util.HashMap; |
| |
| /** |
| * Created by jorgemachado on 16/10/17. |
| */ |
| public class HtmlStringUtils { |
| |
| public static final String unescapeHtml3(final String input) { |
| StringWriter writer = null; |
| int len = input.length(); |
| int i = 1; |
| int st = 0; |
| while (true) { |
| // look for '&' |
| while (i < len && input.charAt(i-1) != '&') |
| i++; |
| if (i >= len) |
| break; |
| |
| // found '&', look for ';' |
| int j = i; |
| while (j < len && j < i + MAX_ESCAPE + 1 && input.charAt(j) != ';') |
| j++; |
| if (j == len || j < i + MIN_ESCAPE || j == i + MAX_ESCAPE + 1) { |
| i++; |
| continue; |
| } |
| |
| // found escape |
| if (input.charAt(i) == '#') { |
| // numeric escape |
| int k = i + 1; |
| int radix = 10; |
| |
| final char firstChar = input.charAt(k); |
| if (firstChar == 'x' || firstChar == 'X') { |
| k++; |
| radix = 16; |
| } |
| |
| try { |
| int entityValue = Integer.parseInt(input.substring(k, j), radix); |
| |
| if (writer == null) |
| writer = new StringWriter(input.length()); |
| writer.append(input.substring(st, i - 1)); |
| |
| if (entityValue > 0xFFFF) { |
| final char[] chrs = Character.toChars(entityValue); |
| writer.write(chrs[0]); |
| writer.write(chrs[1]); |
| } else { |
| writer.write(entityValue); |
| } |
| |
| } catch (NumberFormatException ex) { |
| i++; |
| continue; |
| } |
| } |
| else { |
| // named escape |
| CharSequence value = lookupMap.get(input.substring(i, j)); |
| if (value == null) { |
| i++; |
| continue; |
| } |
| |
| if (writer == null) |
| writer = new StringWriter(input.length()); |
| writer.append(input.substring(st, i - 1)); |
| |
| writer.append(value); |
| } |
| |
| // skip escape |
| st = j + 1; |
| i = st; |
| } |
| |
| if (writer != null) { |
| writer.append(input.substring(st, len)); |
| String inputStr = writer.toString(); |
| String strippedText = inputStr.replaceAll("\\<\\/p\\>", "\n"); |
| strippedText = strippedText.replaceAll("\\<.*?\\>", " "); |
| return strippedText; |
| } |
| String strippedText = input.replaceAll("\\<\\/p\\>", "\n"); |
| strippedText = strippedText.replaceAll("\\<.*?\\>", " "); |
| return strippedText; |
| } |
| |
| private static final String[][] ESCAPES = { |
| {"\"", "quot"}, // " - double-quote |
| {"&", "amp"}, // & - ampersand |
| {"<", "lt"}, // < - less-than |
| {">", "gt"}, // > - greater-than |
| |
| // Mapping to escape ISO-8859-1 characters to their named HTML 3.x equivalents. |
| {"\u00A0", "nbsp"}, // non-breaking space |
| {"\u00A1", "iexcl"}, // inverted exclamation mark |
| {"\u00A2", "cent"}, // cent sign |
| {"\u00A3", "pound"}, // pound sign |
| {"\u00A4", "curren"}, // currency sign |
| {"\u00A5", "yen"}, // yen sign = yuan sign |
| {"\u00A6", "brvbar"}, // broken bar = broken vertical bar |
| {"\u00A7", "sect"}, // section sign |
| {"\u00A8", "uml"}, // diaeresis = spacing diaeresis |
| {"\u00A9", "copy"}, // © - copyright sign |
| {"\u00AA", "ordf"}, // feminine ordinal indicator |
| {"\u00AB", "laquo"}, // left-pointing double angle quotation mark = left pointing guillemet |
| {"\u00AC", "not"}, // not sign |
| {"\u00AD", "shy"}, // soft hyphen = discretionary hyphen |
| {"\u00AE", "reg"}, // ® - registered trademark sign |
| {"\u00AF", "macr"}, // macron = spacing macron = overline = APL overbar |
| {"\u00B0", "deg"}, // degree sign |
| {"\u00B1", "plusmn"}, // plus-minus sign = plus-or-minus sign |
| {"\u00B2", "sup2"}, // superscript two = superscript digit two = squared |
| {"\u00B3", "sup3"}, // superscript three = superscript digit three = cubed |
| {"\u00B4", "acute"}, // acute accent = spacing acute |
| {"\u00B5", "micro"}, // micro sign |
| {"\u00B6", "para"}, // pilcrow sign = paragraph sign |
| {"\u00B7", "middot"}, // middle dot = Georgian comma = Greek middle dot |
| {"\u00B8", "cedil"}, // cedilla = spacing cedilla |
| {"\u00B9", "sup1"}, // superscript one = superscript digit one |
| {"\u00BA", "ordm"}, // masculine ordinal indicator |
| {"\u00BB", "raquo"}, // right-pointing double angle quotation mark = right pointing guillemet |
| {"\u00BC", "frac14"}, // vulgar fraction one quarter = fraction one quarter |
| {"\u00BD", "frac12"}, // vulgar fraction one half = fraction one half |
| {"\u00BE", "frac34"}, // vulgar fraction three quarters = fraction three quarters |
| {"\u00BF", "iquest"}, // inverted question mark = turned question mark |
| {"\u00C0", "Agrave"}, // А - uppercase A, grave accent |
| {"\u00C1", "Aacute"}, // Б - uppercase A, acute accent |
| {"\u00C2", "Acirc"}, // В - uppercase A, circumflex accent |
| {"\u00C3", "Atilde"}, // Г - uppercase A, tilde |
| {"\u00C4", "Auml"}, // Д - uppercase A, umlaut |
| {"\u00C5", "Aring"}, // Е - uppercase A, ring |
| {"\u00C6", "AElig"}, // Ж - uppercase AE |
| {"\u00C7", "Ccedil"}, // З - uppercase C, cedilla |
| {"\u00C8", "Egrave"}, // И - uppercase E, grave accent |
| {"\u00C9", "Eacute"}, // Й - uppercase E, acute accent |
| {"\u00CA", "Ecirc"}, // К - uppercase E, circumflex accent |
| {"\u00CB", "Euml"}, // Л - uppercase E, umlaut |
| {"\u00CC", "Igrave"}, // М - uppercase I, grave accent |
| {"\u00CD", "Iacute"}, // Н - uppercase I, acute accent |
| {"\u00CE", "Icirc"}, // О - uppercase I, circumflex accent |
| {"\u00CF", "Iuml"}, // П - uppercase I, umlaut |
| {"\u00D0", "ETH"}, // Р - uppercase Eth, Icelandic |
| {"\u00D1", "Ntilde"}, // С - uppercase N, tilde |
| {"\u00D2", "Ograve"}, // Т - uppercase O, grave accent |
| {"\u00D3", "Oacute"}, // У - uppercase O, acute accent |
| {"\u00D4", "Ocirc"}, // Ф - uppercase O, circumflex accent |
| {"\u00D5", "Otilde"}, // Х - uppercase O, tilde |
| {"\u00D6", "Ouml"}, // Ц - uppercase O, umlaut |
| {"\u00D7", "times"}, // multiplication sign |
| {"\u00D8", "Oslash"}, // Ш - uppercase O, slash |
| {"\u00D9", "Ugrave"}, // Щ - uppercase U, grave accent |
| {"\u00DA", "Uacute"}, // Ъ - uppercase U, acute accent |
| {"\u00DB", "Ucirc"}, // Ы - uppercase U, circumflex accent |
| {"\u00DC", "Uuml"}, // Ь - uppercase U, umlaut |
| {"\u00DD", "Yacute"}, // Э - uppercase Y, acute accent |
| {"\u00DE", "THORN"}, // Ю - uppercase THORN, Icelandic |
| {"\u00DF", "szlig"}, // Я - lowercase sharps, German |
| {"\u00E0", "agrave"}, // а - lowercase a, grave accent |
| {"\u00E1", "aacute"}, // б - lowercase a, acute accent |
| {"\u00E2", "acirc"}, // в - lowercase a, circumflex accent |
| {"\u00E3", "atilde"}, // г - lowercase a, tilde |
| {"\u00E4", "auml"}, // д - lowercase a, umlaut |
| {"\u00E5", "aring"}, // е - lowercase a, ring |
| {"\u00E6", "aelig"}, // ж - lowercase ae |
| {"\u00E7", "ccedil"}, // з - lowercase c, cedilla |
| {"\u00E8", "egrave"}, // и - lowercase e, grave accent |
| {"\u00E9", "eacute"}, // й - lowercase e, acute accent |
| {"\u00EA", "ecirc"}, // к - lowercase e, circumflex accent |
| {"\u00EB", "euml"}, // л - lowercase e, umlaut |
| {"\u00EC", "igrave"}, // м - lowercase i, grave accent |
| {"\u00ED", "iacute"}, // н - lowercase i, acute accent |
| {"\u00EE", "icirc"}, // о - lowercase i, circumflex accent |
| {"\u00EF", "iuml"}, // п - lowercase i, umlaut |
| {"\u00F0", "eth"}, // р - lowercase eth, Icelandic |
| {"\u00F1", "ntilde"}, // с - lowercase n, tilde |
| {"\u00F2", "ograve"}, // т - lowercase o, grave accent |
| {"\u00F3", "oacute"}, // у - lowercase o, acute accent |
| {"\u00F4", "ocirc"}, // ф - lowercase o, circumflex accent |
| {"\u00F5", "otilde"}, // х - lowercase o, tilde |
| {"\u00F6", "ouml"}, // ц - lowercase o, umlaut |
| {"\u00F7", "divide"}, // division sign |
| {"\u00F8", "oslash"}, // ш - lowercase o, slash |
| {"\u00F9", "ugrave"}, // щ - lowercase u, grave accent |
| {"\u00FA", "uacute"}, // ъ - lowercase u, acute accent |
| {"\u00FB", "ucirc"}, // ы - lowercase u, circumflex accent |
| {"\u00FC", "uuml"}, // ь - lowercase u, umlaut |
| {"\u00FD", "yacute"}, // э - lowercase y, acute accent |
| {"\u00FE", "thorn"}, // ю - lowercase thorn, Icelandic |
| {"\u00FF", "yuml"}, // я - lowercase y, umlaut |
| }; |
| |
| private static final int MIN_ESCAPE = 2; |
| private static final int MAX_ESCAPE = 6; |
| |
| private static final HashMap<String, CharSequence> lookupMap; |
| static { |
| lookupMap = new HashMap<String, CharSequence>(); |
| for (final CharSequence[] seq : ESCAPES) |
| lookupMap.put(seq[1].toString(), seq[0]); |
| } |
| |
| public static void main(String[] args) |
| { |
| System.out.println(unescapeHtml3("<p>Motivação para a unidade curricular</p>")); |
| |
| } |
| |
| } |