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Adding support for GS/OS mixed case names. #84
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@ -24,6 +24,7 @@ import java.text.SimpleDateFormat;
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import java.util.ArrayList;
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import java.util.ArrayList;
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import java.util.Date;
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import java.util.Date;
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import java.util.List;
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import java.util.List;
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import java.util.function.Function;
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import com.webcodepro.applecommander.storage.DiskFullException;
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import com.webcodepro.applecommander.storage.DiskFullException;
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import com.webcodepro.applecommander.storage.FileEntry;
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import com.webcodepro.applecommander.storage.FileEntry;
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@ -61,13 +62,14 @@ public class ProdosFileEntry extends ProdosCommonEntry implements FileEntry {
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/**
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/**
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* Return the name of this file.
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* Return the name of this file.
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* This handles normal files, deleted files, and AppleWorks files - which use
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* This handles normal files, deleted files, AppleWorks files - which use
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* the AUXTYPE attribute to indicate upper/lowercase in the filename.
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* the AUXTYPE attribute to indicate upper/lowercase in the filename, and
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* GS/OS casing which is in the ProDOS version flags.
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* Note that we don't do mixed case for deleted files.
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*/
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*/
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public String getFilename() {
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public String getFilename() {
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String fileName;
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if (isDeleted()) {
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if (isDeleted()) {
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fileName = AppleUtil.getString(readFileEntry(), 1, 15);
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String fileName = AppleUtil.getString(readFileEntry(), 1, 15);
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StringBuffer buf = new StringBuffer();
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StringBuffer buf = new StringBuffer();
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for (int i=0; i<fileName.length(); i++) {
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for (int i=0; i<fileName.length(); i++) {
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char ch = fileName.charAt(i);
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char ch = fileName.charAt(i);
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@ -77,43 +79,44 @@ public class ProdosFileEntry extends ProdosCommonEntry implements FileEntry {
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break;
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break;
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}
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}
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}
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}
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fileName = buf.toString();
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return buf.toString();
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} else {
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fileName = AppleUtil.getProdosString(readFileEntry(), 0);
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}
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}
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else {
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String fileName = AppleUtil.getProdosString(readFileEntry(), 0);
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if (isAppleWorksFile()) {
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if (isAppleWorksFile()) {
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int auxtype = getAuxiliaryType();
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int auxtype = getAuxiliaryType();
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StringBuffer mixedCase = new StringBuffer(fileName);
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fileName = getMixedCaseName(fileName, auxtype, ProdosFileEntry::calculateAppleWorksBit);
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// the highest bit of the least significant byte is the first
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// character through the 2nd bit of the most significant byte
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// being the 15th character. Bit is on indicates lower-case or
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// a space if a "." is present.
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for (int i=0; i<16 && i<fileName.length(); i++) {
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boolean lowerCase;
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if (i < 8) {
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lowerCase = AppleUtil.isBitSet((byte)auxtype, 7-i);
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} else {
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lowerCase = AppleUtil.isBitSet((byte)(auxtype >> 8), 7-(i%8));
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}
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if (lowerCase) {
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char ch = mixedCase.charAt(i);
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if (ch == '.') {
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mixedCase.setCharAt(i, ' ');
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} else {
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mixedCase.setCharAt(i, Character.toLowerCase(ch));
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}
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}
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}
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fileName = mixedCase.toString();
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}
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}
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// GS/OS upper/lower case mix
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// GS/OS upper/lower case mix
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if ((getMinimumProdosVersion() & 0x80) != 0) {
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else if ((getMinimumProdosVersion() & 0x80) != 0) {
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int flags = getMinimumProdosVersion() << 8 | getProdosVersion();
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int flags = getMinimumProdosVersion() << 8 | getProdosVersion();
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int bit = 1 << 14; // 1st bit in 16 bit number is enablement flag, so skipping it
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fileName = getMixedCaseName(fileName, flags, ProdosFileEntry::calculateGSOSBit);
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StringBuffer mixedCase = new StringBuffer(fileName);
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}
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for (int i=0; i<16 && i<fileName.length(); i++) {
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return fileName;
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boolean lowerCase = (flags & bit) != 0;
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}
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if (lowerCase) {
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}
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/**
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* the highest bit of the least significant byte is the first
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* character through the 2nd bit of the most significant byte
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* being the 15th character. Bit is on indicates lower-case or
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* a space if a "." is present.
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*/
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static int calculateAppleWorksBit(int pos) {
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final int[] bitTest = { 7, 6, 5, 4, 3, 2, 1, 0, 15, 14, 13, 12, 11, 10, 9 };
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return 1 << bitTest[pos];
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}
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/**
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* 1st bit in 16 bit number is enablement flag, so skipping it
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* flags = e01234567 89ABCDEF (e = enablement flag; hex digits = character index)
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*/
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static int calculateGSOSBit(int pos) {
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return 1 << (14-pos);
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}
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static String getMixedCaseName(final String original, final int bits,
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final Function<Integer,Integer> bitPosition) {
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StringBuffer mixedCase = new StringBuffer(original);
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for (int i=0; i<mixedCase.length(); i++) {
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if ((bits & bitPosition.apply(i)) != 0) {
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char ch = mixedCase.charAt(i);
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char ch = mixedCase.charAt(i);
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if (ch == '.') {
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if (ch == '.') {
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mixedCase.setCharAt(i, ' ');
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mixedCase.setCharAt(i, ' ');
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@ -121,11 +124,8 @@ public class ProdosFileEntry extends ProdosCommonEntry implements FileEntry {
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mixedCase.setCharAt(i, Character.toLowerCase(ch));
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mixedCase.setCharAt(i, Character.toLowerCase(ch));
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}
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}
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}
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}
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bit >>= 1;
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}
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}
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fileName = mixedCase.toString();
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return mixedCase.toString();
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}
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return fileName;
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}
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}
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/**
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/**
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@ -137,30 +137,50 @@ public class ProdosFileEntry extends ProdosCommonEntry implements FileEntry {
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/**
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/**
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* Set the name of this file.
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* Set the name of this file.
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* This handles normal files, deleted files, AppleWorks files - which use
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* the AUXTYPE attribute to indicate upper/lowercase in the filename, and
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* GS/OS casing which is in the ProDOS version flags.
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*/
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*/
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public void setFilename(String filename) {
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public void setFilename(String filename) {
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// 1. Set the upper/lowercase flags
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if (isAppleWorksFile()) {
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// Since we are ALWAYS doing the GSOS filename, we just have a temp holder here.
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StringBuilder tempFilename = new StringBuilder(filename);
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int auxtype = setMixedCaseFlags(tempFilename, ProdosFileEntry::calculateAppleWorksBit);
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setAuxiliaryType(auxtype);
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}
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StringBuilder alternateFilename = new StringBuilder(filename);
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int flags = setMixedCaseFlags(alternateFilename, ProdosFileEntry::calculateGSOSBit);
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if (flags != 0) {
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// high bit signals mixed case
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flags |= 0x8000;
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}
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filename = alternateFilename.toString();
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setMinimumProdosVersion(flags >> 8);
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setProdosVersion(flags);
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// 2. Set the filename details as the result should be all uppercase.
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byte[] fileEntry = readFileEntry();
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byte[] fileEntry = readFileEntry();
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if (isDeleted()) {
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if (isDeleted()) {
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AppleUtil.setString(fileEntry, 1, filename.toUpperCase(), 15);
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AppleUtil.setString(fileEntry, 1, filename.toUpperCase(), 15);
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} else {
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} else {
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AppleUtil.setProdosString(fileEntry, 0, filename.toUpperCase(), 15);
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AppleUtil.setProdosString(fileEntry, 0, filename.toUpperCase(), 15);
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}
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}
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if (isAppleWorksFile()) {
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byte lowByte = 0;
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byte highByte = 0;
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for (int i=0; i<filename.length(); i++) {
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if (Character.isLowerCase(filename.charAt(i))) {
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if (i < 8) {
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lowByte = AppleUtil.setBit(lowByte, 7-i);
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} else if (i < 16) {
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highByte = AppleUtil.setBit(highByte, 7-(i%8));
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}
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}
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}
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setAuxiliaryType(fileEntry, lowByte, highByte);
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}
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writeFileEntry(fileEntry);
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writeFileEntry(fileEntry);
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}
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}
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static int setMixedCaseFlags(StringBuilder filename, Function<Integer,Integer> bitPosition) {
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int flags = 0;
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for (int i=0; i<filename.length(); i++) {
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char ch = filename.charAt(i);
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if (Character.isLowerCase(ch) || ch == ' ') {
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flags |= bitPosition.apply(i);
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if (ch == ' ') ch = '.';
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filename.setCharAt(i, Character.toUpperCase(ch));
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}
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}
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return flags;
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}
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/**
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/**
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* Copy GEOS-specific metadata to the directory entry verbatim:
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* Copy GEOS-specific metadata to the directory entry verbatim:
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@ -0,0 +1,69 @@
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/*
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* AppleCommander - An Apple ][ image utility.
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* Copyright (C) 2002-2022 by Robert Greene and others
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* robgreene at users.sourceforge.net
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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package com.webcodepro.applecommander.storage.os.prodos;
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import org.junit.Test;
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import static org.junit.Assert.*;
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public class ProdosFileEntryTest {
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@Test
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public void testGetMixedCaseName_GSOS() {
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final String originalName = "DESK.ACCS";
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final int flags = 0xb9c0;
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final String expectedName = "Desk.Accs";
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assertEquals(expectedName, ProdosFileEntry.getMixedCaseName(originalName, flags,
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ProdosFileEntry::calculateGSOSBit));
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}
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@Test
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public void testSetMixedCaseName_GSOS() {
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final String originalName = "Desk.Accs";
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final int expectedFlags = 0xb9c0 & 0x7fff; // the flag is set outside this method
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final String expectedName = "DESK.ACCS";
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StringBuilder sb = new StringBuilder(originalName);
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int actualFlags = ProdosFileEntry.setMixedCaseFlags(sb, ProdosFileEntry::calculateGSOSBit);
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assertEquals(expectedName, sb.toString());
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assertEquals(expectedFlags, actualFlags);
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}
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@Test
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public void testGetMixedCaseName_AppleWorks() {
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final String originalName = "MOUSEFIXER.DOCS";
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final int auxtype = 0xee7b;
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final String expectedName = "MouseFixer Docs";
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assertEquals(expectedName, ProdosFileEntry.getMixedCaseName(originalName, auxtype,
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ProdosFileEntry::calculateAppleWorksBit));
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}
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@Test
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public void testSetMixedCaseName_AppleWorks() {
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final String originalName = "MouseFixer Docs";
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final int expectedFlags = 0xee7b;
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final String expectedName = "MOUSEFIXER.DOCS";
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StringBuilder sb = new StringBuilder(originalName);
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int actualFlags = ProdosFileEntry.setMixedCaseFlags(sb, ProdosFileEntry::calculateAppleWorksBit);
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assertEquals(expectedName, sb.toString());
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assertEquals(expectedFlags, actualFlags);
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}
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}
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