* MIME type detection configuration. It reads extension-to-MIME-type override
 * mappings from FessConfig to handle cases where content-based detection
 * produces incorrect results (e.g., SQL files starting with REM comments
 * being misdetected as batch files).
 */
public class FessMimeTypeHelper extends MimeTypeHelperImpl {

    private static final Logger logger = LogManager.getLogger(FessMimeTypeHelper.class);

    /**

	rec, nl, rem := rest[:n-1], rest[n-1:n], rest[n:]
	if nl != "\n" {
		return "", "", s, ErrHeader
	}

	// The first equals separates the key from the value.
	k, v, ok = strings.Cut(rec, "=")
	if !ok {
		return "", "", s, ErrHeader
	}

	if !validPAXRecord(k, v) {
		return "", "", s, ErrHeader
	}
	return k, v, rem, nil
}

    checkNotNull(mode);
    if (q == 0) {
      throw new ArithmeticException("/ by zero"); // for GWT
    }
    int div = p / q;
    int rem = p - q * div; // equal to p % q

    if (rem == 0) {
      return div;
    }

    /*
     * Normal Java division rounds towards 0, consistently with RoundingMode.DOWN. We just have to

            // size8(10, 2): rem = 10%8 - 2 = 2 - 2 = 0, returns 10
            assertEquals(10, ServerMessageBlock2.size8(10, 2));
            // size8(18, 2): rem = 18%8 - 2 = 2 - 2 = 0, returns 18
            assertEquals(18, ServerMessageBlock2.size8(18, 2));
            // size8(17, 2): rem = 17%8 - 2 = 1 - 2 = -1, rem = 8 + (-1) = 7, returns 17 + 8 - 7 = 18

/**
* @preserve HTML5 Shiv 3.7.3 | @afarkas @jdalton @jon_neal @rem | MIT/GPL2 Licensed
*/

  @SuppressWarnings("fallthrough")
  public static long divide(long p, long q, RoundingMode mode) {
    checkNotNull(mode);
    long div = p / q; // throws if q == 0
    long rem = p - q * div; // equals p % q

    if (rem == 0) {
      return div;
    }

    /*
     * Normal Java division rounds towards 0, consistently with RoundingMode.DOWN. We just have to

import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.TestInfo;

public class FessMimeTypeHelperTest extends UnitFessTestCase {

    private static final String SQL_REM_CONTENT = "rem utldtree.sql\nrem\nCREATE TABLE test (id NUMBER);\n";

    private FessMimeTypeHelper mimeTypeHelper;

    @Override
    protected void setUp(TestInfo testInfo) throws Exception {
        super.setUp(testInfo);

//	}
	DIV	R18, R22	// 02d2001a
	DIVU	R14, R9		// 012e001b
	DIVV	R8, R13		// 01a8001e
	DIVVU	R16, R19	// 0270001f

//	LREM rreg ',' rreg
//	{
//		outcode(int($1), &$2, 0, &$4);
//	}
	REM	R18, R22	// 02d2001a
	REMU	R14, R9		// 012e001b
	REMV	R8, R13		// 01a8001e
	REMVU	R16, R19	// 0270001f

//	LSHW rreg ',' sreg ',' rreg
//	{
//		outcode(int($1), &$2, int($4), &$6);
//	}

	MOVHU	y+8(FP), R4		// 6440402a
	MOVHU	1(R5), R4		// a404402a
	MULH	R4, R5	   		// a5901c00
	MULH	R4, R5, R6	   	// a6901c00
	MULHU	R4, R5			// a5101d00
	MULHU	R4, R5, R6		// a6101d00
	REM	R4, R5	  		// a5902000
	REM	R4, R5, R6	  	// a6902000
	REMW	R4, R5	  		// a5902000
	REMW	R4, R5, R6	  	// a6902000
	REMU	R4, R5	   		// a5902100
	REMU	R4, R5, R6	   	// a6902100
	REMWU	R4, R5	   		// a5902100

	DIVDE R3, R4, R5                // 7ca41b52
	DIVDECC R3, R4, R5              // 7ca41b53
	DIVDEU R3, R4, R5               // 7ca41b12
	DIVDEUCC R3, R4, R5             // 7ca41b13

	REM R3, R4, R5                  // 7fe41bd67fff19d67cbf2050
	REMU R3, R4, R5                 // 7fe41b967fff19d67bff00287cbf2050
	REMD R3, R4, R5                 // 7fe41bd27fff19d27cbf2050