Enjoy 3.2 release ^_^

2017-07-31 22:34:15 +08:00
parent 46a7c60813
commit b82af8e219
107 changed files with 12029 additions and 192 deletions
--- a/src/main/java/com/jfinal/template/stat/CharTable.java
+++ b/src/main/java/com/jfinal/template/stat/CharTable.java
@@ -0,0 +1,114 @@
+/**
+ * Copyright (c) 2011-2017, James Zhan 詹波 (jfinal@126.com).
+ *
+ * Licensed 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 com.jfinal.template.stat;
+
+/**
+ * CharTable 空间换时间优化字符判断性能
+ * 负值参数强转 char 会自动变正值，无需判断负值数组下标
+ * isLetter(EOF) 不会下标越界
+ */
+public class CharTable {
+	
+	private static final char[] letterChars = buildLetterChars();
+	private static final char[] letterOrDigitChars = buildLetterOrDigitChars();
+	private static final char[] exprChars = buildExprChars();
+	private static final char NULL = 0;
+	private static final char SIZE = 128;
+	private CharTable(){}
+	
+	private static char[] createCharArray() {
+		char[] ret = new char[SIZE];
+		for (char i=0; i<SIZE; i++) {
+			ret[i] = NULL;
+		}
+		return ret;
+	}
+	
+	private static char[] buildLetterChars() {
+		char[] ret = createCharArray();
+		for (char i='a'; i<='z'; i++) {
+			ret[i] = i;
+		}
+		for (char i='A'; i<='Z'; i++) {
+			ret[i] = i;
+		}
+		ret['_'] = '_';			// 包含下划线字符 '_'
+		return ret;
+	}
+	
+	private static char[] buildLetterOrDigitChars() {
+		char[] ret = buildLetterChars();
+		for (char i='0'; i<='9'; i++) {
+			ret[i] = i;
+		}
+		return ret;
+	}
+	
+	private static char[] buildExprChars() {
+		char[] ret = createCharArray();
+		ret['\t'] = '\t';
+		ret['\n'] = '\n';
+		ret['\r'] = '\r';
+		for (char i=' '; i<='}'; i++) {
+			ret[i] = i;
+		}
+		
+		ret['#'] = NULL;
+		ret['$'] = NULL;
+		ret['@'] = NULL;
+		ret['\\'] = NULL;
+		ret['^'] = NULL;
+		ret['`'] = NULL;
+		return ret;
+	}
+	
+	public static boolean isLetter(char c) {
+		return c < SIZE && letterChars[c] != NULL;
+	}
+	
+	public static boolean isLetterOrDigit(char c) {
+		return c < SIZE && letterOrDigitChars[c] != NULL;
+	}
+	
+	public static boolean isExprChar(char c) {
+		return c < SIZE && exprChars[c] != NULL;
+	}
+	
+	public static boolean isDigit(char c) {
+		return c >= '0' && c <= '9';
+	}
+	
+	public static boolean isBlank(char c) {
+		return c == ' ' || c == '\t';								// \t\r\u000C
+	}
+	
+	public static boolean isBlankOrLineFeed(char c) {
+		return c == ' ' || c == '\t' || c == '\r' || c == '\n';		// \t\r\n\u000C
+	}
+	
+	public static boolean isHexadecimalDigit(char c) {
+		return (c >= '0' && c <= '9') || (c >= 'A' && c <= 'F') || (c >= 'a' && c <= 'f');
+	}
+	
+	public static boolean isOctalDigit(char c) {
+		return c >= '0' && c <= '7';
+	}
+}
+
+
+
+