70 lines
2.1 KiB
Java
70 lines
2.1 KiB
Java
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package com.darkprograms.speech.util;
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/**
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* A string utility class for commonly used methods.
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* These methods are particularly useful for parsing.
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* @author Skylion
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*/
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public class StringUtil {
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private StringUtil() {};//Prevents instantiation
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/**
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* Removes quotation marks from beginning and end of string.
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* @param s The string you want to remove the quotation marks from.
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* @return The modified String.
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*/
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public static String stripQuotes(String s) {
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int start = 0;
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if( s.startsWith("\"") ) {
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start = 1;
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}
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int end = s.length();
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if( s.endsWith("\"") ) {
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end = s.length() - 1;
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}
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return s.substring(start, end);
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}
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/**
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* Returns the first instance of String found exclusively between part1 and part2.
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* @param s The String you want to substring.
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* @param part1 The beginning of the String you want to search for.
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* @param part2 The end of the String you want to search for.
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* @return The String between part1 and part2.
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* If the s does not contain part1 or part2, the method returns null.
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*/
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public static String substringBetween(String s, String part1, String part2) {
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String sub = null;
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int i = s.indexOf(part1);
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int j = s.indexOf(part2, i + part1.length());
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if (i != -1 && j != -1) {
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int nStart = i + part1.length();
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sub = s.substring(nStart, j);
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}
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return sub;
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}
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/**
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* Gets the string exclusively between the first instance of part1 and the last instance of part2.
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* @param s The string you want to trim.
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* @param part1 The term to trim after first instance.
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* @param part2 The term to before last instance of.
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* @return The trimmed String
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*/
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public static String trimString(String s, String part1, String part2){
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if(!s.contains(part1) || !s.contains(part2)){
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return null;
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}
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int first = s.indexOf(part1) + part1.length() + 1;
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String tmp = s.substring(first);
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int last = tmp.lastIndexOf(part2);
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tmp = tmp.substring(0, last);
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return tmp;
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}
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}
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