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Amateras

amateras: Commit

HTMLのエスケープ処理をS2Functionsからコピー。

--- functions/trunk/functions/src/main/java/jp/sf/amateras/functions/utils/StringUtils.java (revision 13)

+++ functions/trunk/functions/src/main/java/jp/sf/amateras/functions/utils/StringUtils.java (revision 14)

		@@ -10,6 +10,22 @@
10	10	*/
11	11	public class StringUtils {
12	12
	13	+ private static final int HIGHEST_SPECIAL = '>';
	14	+
	15	+ private static String BR = "<br />";
	16	+
	17	+ private static String NBSP = " ";
	18	+
	19	+ private static char[][] specialCharactersRepresentation = new char[HIGHEST_SPECIAL + 1][];
	20	+
	21	+ static {
	22	+ specialCharactersRepresentation['&'] = "&".toCharArray();
	23	+ specialCharactersRepresentation['<'] = "<".toCharArray();
	24	+ specialCharactersRepresentation['>'] = ">".toCharArray();
	25	+ specialCharactersRepresentation['"'] = """.toCharArray();
	26	+ specialCharactersRepresentation['\''] = "'".toCharArray();
	27	+ }
	28	+
13	29	private static String defaultEncode = "UTF-8";
14	30
15	31	public static void setDefaultEncode(String defaultEncode){

		@@ -22,18 +38,40 @@
22	38	* @param value 変換対象の文字列
23	39	* @return 変換後の文字列。引数<code>value</code>が<code>null</code>の場合は空文字列
24	40	*/
25		- public static String escapeHtml(String value){
26		- if(value == null){
	41	+ public static String escapeHtml(String buffer){
	42	+ if(buffer == null){
27	43	return "";
28	44	}
29	45
30		- value = value.replace("&", "&");
31		- value = value.replace("<", "<");
32		- value = value.replace(">", ">");
33		- value = value.replace("\"", """);
34		-
35		- return value;
36		- }
	46	+ int start = 0;
	47	+ int length = buffer.length();
	48	+ char[] arrayBuffer = buffer.toCharArray();
	49	+ StringBuilder escapedBuffer = null;
	50	+
	51	+ for (int i = 0; i < length; i++) {
	52	+ char c = arrayBuffer[i];
	53	+ if (c <= HIGHEST_SPECIAL) {
	54	+ char[] escaped = specialCharactersRepresentation[c];
	55	+ if (escaped != null) {
	56	+ if (start == 0) {
	57	+ escapedBuffer = new StringBuilder(length + 5);
	58	+ }
	59	+ if (start < i) {
	60	+ escapedBuffer.append(arrayBuffer, start, i - start);
	61	+ }
	62	+ start = i + 1;
	63	+ escapedBuffer.append(escaped);
	64	+ }
	65	+ }
	66	+ }
	67	+ if (start == 0) {
	68	+ return buffer;
	69	+ }
	70	+ if (start < length) {
	71	+ escapedBuffer.append(arrayBuffer, start, length - start);
	72	+ }
	73	+ return escapedBuffer.toString();
	74	+ }
37	75
38	76	/**
39	77	* デフォルトのエンコーディングでURLエンコードを行います。