mirror of
https://github.com/dmolony/DiskBrowser.git
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68 lines
2.5 KiB
Java
68 lines
2.5 KiB
Java
package com.bytezone.diskbrowser.applefile;
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import com.bytezone.diskbrowser.gui.BasicPreferences;
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// -----------------------------------------------------------------------------------//
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public abstract class BasicProgram extends AbstractFile
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// -----------------------------------------------------------------------------------//
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{
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static final byte ASCII_QUOTE = 0x22;
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static final byte ASCII_DOLLAR = 0x24;
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static final byte ASCII_PERCENT = 0x25;
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static final byte ASCII_LEFT_BRACKET = 0x28;
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static final byte ASCII_COLON = 0x3A;
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static final byte ASCII_SEMI_COLON = 0x3B;
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static final byte ASCII_CARET = 0x5E;
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static BasicPreferences basicPreferences; // set by MenuHandler
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// ---------------------------------------------------------------------------------//
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public static void setBasicPreferences (BasicPreferences basicPreferences)
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// ---------------------------------------------------------------------------------//
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{
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BasicProgram.basicPreferences = basicPreferences;
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}
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// ---------------------------------------------------------------------------------//
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public BasicProgram (String name, byte[] buffer)
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// ---------------------------------------------------------------------------------//
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{
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super (name, buffer);
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}
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// ---------------------------------------------------------------------------------//
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boolean isHighBitSet (byte value)
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// ---------------------------------------------------------------------------------//
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{
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return (value & 0x80) != 0;
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}
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// ---------------------------------------------------------------------------------//
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boolean isControlCharacter (byte value)
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// ---------------------------------------------------------------------------------//
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{
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int val = value & 0xFF;
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return val > 0 && val < 32;
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}
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// ---------------------------------------------------------------------------------//
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boolean isDigit (byte value)
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// ---------------------------------------------------------------------------------//
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{
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return value >= 0x30 && value <= 0x39;
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}
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// ---------------------------------------------------------------------------------//
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boolean isLetter (byte value)
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// ---------------------------------------------------------------------------------//
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{
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return value >= 0x41 && value <= 0x5A;
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}
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boolean isPossibleVariable (byte value)
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{
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return isDigit (value) || isLetter (value) || value == ASCII_DOLLAR
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|| value == ASCII_PERCENT;
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}
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}
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