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82 lines
2.3 KiB
82 lines
2.3 KiB
package jode.util;
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/**
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* This is a simple class to quote a string or a char. It puts it in
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* quotes (" resp. ') and prints special chars with the same syntax as
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* strings and chars in java source codes.
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*/
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public class StringQuoter {
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/**
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* This is the static method, that quotes a string.
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*/
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public static String quote(String str) {
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StringBuffer result = new StringBuffer("\"");
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for (int i=0; i< str.length(); i++) {
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char c;
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switch (c = str.charAt(i)) {
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case '\0':
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result.append("\\0");
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break;
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case '\t':
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result.append("\\t");
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break;
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case '\n':
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result.append("\\n");
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break;
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case '\r':
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result.append("\\r");
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break;
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case '\\':
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result.append("\\\\");
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break;
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case '\"':
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result.append("\\\"");
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break;
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default:
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if (c < 32) {
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String oct = Integer.toOctalString(c);
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result.append("\\000".substring(0, 4-oct.length()))
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.append(oct);
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} else if (c >= 32 && c < 127)
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result.append(str.charAt(i));
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else {
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String hex = Integer.toHexString(c);
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result.append("\\u0000".substring(0, 6-hex.length()))
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.append(hex);
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}
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}
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}
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return result.append("\"").toString();
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}
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/**
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* This is the static method, that quotes a char.
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*/
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public static String quote(char c) {
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switch (c) {
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case '\0':
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return "\'\\0\'";
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case '\t':
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return "\'\\t\'";
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case '\n':
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return "\'\\n\'";
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case '\r':
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return "\'\\r\'";
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case '\\':
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return "\'\\\\\'";
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case '\"':
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return "\'\\\"\'";
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case '\'':
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return "\'\\\'\'";
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}
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if (c < 32) {
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String oct = Integer.toOctalString(c);
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return "\'\\000".substring(0, 5-oct.length())+oct+"\'";
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}
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if (c >= 32 && c < 127)
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return "\'"+c+"\'";
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else {
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String hex = Integer.toHexString(c);
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return "\'\\u0000".substring(0, 7-hex.length())+hex+"\'";
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}
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}
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}
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