Index: src/encodings/codepage_437.m
==================================================================
--- src/encodings/codepage_437.m
+++ src/encodings/codepage_437.m
@@ -15,10 +15,12 @@
  */
 
 #include "config.h"
 
 #import "OFString.h"
+
+#import "common.h"
 
 const of_char16_t of_codepage_437_table[] = {
 	0x00C7, 0x00FC, 0x00E9, 0x00E2, 0x00E4, 0x00E0, 0x00E5, 0x00E7,
 	0x00EA, 0x00EB, 0x00E8, 0x00EF, 0x00EE, 0x00EC, 0x00C4, 0x00C5,
 	0x00C9, 0x00E6, 0x00C6, 0x00F4, 0x00F6, 0x00F2, 0x00FB, 0x00F9,
@@ -37,420 +39,139 @@
 	0x00B0, 0x2219, 0x00B7, 0x221A, 0x207F, 0x00B2, 0x25A0, 0x00A0
 };
 const size_t of_codepage_437_table_offset =
     256 - (sizeof(of_codepage_437_table) / sizeof(*of_codepage_437_table));
 
+static const char page0[] = {
+	0xFF, 0xAD, 0x9B, 0x9C, 0x00, 0x9D, 0x00, 0x00,
+	0x00, 0x00, 0xA6, 0xAE, 0xAA, 0x00, 0x00, 0x00,
+	0xF8, 0xF1, 0xFD, 0x00, 0x00, 0xE6, 0x00, 0xFA,
+	0x00, 0x00, 0xA7, 0xAF, 0xAC, 0xAB, 0x00, 0xA8,
+	0x00, 0x00, 0x00, 0x00, 0x8E, 0x8F, 0x92, 0x80,
+	0x00, 0x90, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0xA5, 0x00, 0x00, 0x00, 0x00, 0x99, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x9A, 0x00, 0x00, 0xE1,
+	0x85, 0xA0, 0x83, 0x00, 0x84, 0x86, 0x91, 0x87,
+	0x8A, 0x82, 0x88, 0x89, 0x8D, 0xA1, 0x8C, 0x8B,
+	0x00, 0xA4, 0x95, 0xA2, 0x93, 0x00, 0x94, 0xF6,
+	0x00, 0x97, 0xA3, 0x96, 0x81, 0x00, 0x00, 0x98
+};
+static const uint8_t page0Start = 0xA0;
+static const uint16_t page0Size = sizeof(page0) / sizeof(*page0);
+
+static const char page1[] = {
+	0x9F
+};
+static const uint8_t page1Start = 0x92;
+static const uint16_t page1Size = sizeof(page1) / sizeof(*page1);
+
+static const char page3[] = {
+	0xE2, 0x00, 0x00, 0x00, 0x00, 0xE9, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0xE4, 0x00, 0x00, 0xE8, 0x00, 0x00, 0xEA, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE0, 0x00,
+	0x00, 0xEB, 0xEE, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0xE3, 0x00, 0x00,
+	0xE5, 0xE7, 0x00, 0xED
+};
+static const uint8_t page3Start = 0x93;
+static const uint16_t page3Size = sizeof(page3) / sizeof(*page3);
+
+static const char page20[] = {
+	0xFC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x9E
+};
+static const uint8_t page20Start = 0x7F;
+static const uint16_t page20Size = sizeof(page20) / sizeof(*page20);
+
+static const char page22[] = {
+	0xF9, 0xFB, 0x00, 0x00, 0x00, 0xEC, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0xEF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF7,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0xF0, 0x00, 0x00, 0xF3, 0xF2
+};
+static const uint8_t page22Start = 0x19;
+static const uint16_t page22Size = sizeof(page22) / sizeof(*page22);
+
+static const char page23[] = {
+	0xA9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0xF4, 0xF5
+};
+static const uint8_t page23Start = 0x10;
+static const uint16_t page23Size = sizeof(page23) / sizeof(*page23);
+
+static const char page25[] = {
+	0xC4, 0x00, 0xB3, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0xDA, 0x00, 0x00, 0x00,
+	0xBF, 0x00, 0x00, 0x00, 0xC0, 0x00, 0x00, 0x00,
+	0xD9, 0x00, 0x00, 0x00, 0xC3, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0xB4, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0xC2, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0xC1, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0xC5, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0xCD, 0xBA, 0xD5, 0xD6, 0xC9, 0xB8, 0xB7, 0xBB,
+	0xD4, 0xD3, 0xC8, 0xBE, 0xBD, 0xBC, 0xC6, 0xC7,
+	0xCC, 0xB5, 0xB6, 0xB9, 0xD1, 0xD2, 0xCB, 0xCF,
+	0xD0, 0xCA, 0xD8, 0xD7, 0xCE, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0xDF, 0x00, 0x00, 0x00, 0xDC, 0x00, 0x00, 0x00,
+	0xDB, 0x00, 0x00, 0x00, 0xDD, 0x00, 0x00, 0x00,
+	0xDE, 0xB0, 0xB1, 0xB2, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0xFE
+};
+static const uint8_t page25Start = 0x00;
+static const uint16_t page25Size = sizeof(page25) / sizeof(*page25);
+
 bool
 of_unicode_to_codepage_437(const of_unichar_t *input, unsigned char *output,
     size_t length, bool lossy)
 {
 	for (size_t i = 0; i < length; i++) {
 		of_unichar_t c = input[i];
 
 		if OF_UNLIKELY (c > 0x7F) {
+			uint8_t index;
+
 			if OF_UNLIKELY (c > 0xFFFF) {
 				if (lossy) {
 					output[i] = '?';
 					continue;
 				} else
 					return false;
 			}
 
-			switch ((of_char16_t)c) {
-			case 0xC7:
-				output[i] = 0x80;
-				break;
-			case 0xFC:
-				output[i] = 0x81;
-				break;
-			case 0xE9:
-				output[i] = 0x82;
-				break;
-			case 0xE2:
-				output[i] = 0x83;
-				break;
-			case 0xE4:
-				output[i] = 0x84;
-				break;
-			case 0xE0:
-				output[i] = 0x85;
-				break;
-			case 0xE5:
-				output[i] = 0x86;
-				break;
-			case 0xE7:
-				output[i] = 0x87;
-				break;
-			case 0xEA:
-				output[i] = 0x88;
-				break;
-			case 0xEB:
-				output[i] = 0x89;
-				break;
-			case 0xE8:
-				output[i] = 0x8A;
-				break;
-			case 0xEF:
-				output[i] = 0x8B;
-				break;
-			case 0xEE:
-				output[i] = 0x8C;
-				break;
-			case 0xEC:
-				output[i] = 0x8D;
-				break;
-			case 0xC4:
-				output[i] = 0x8E;
-				break;
-			case 0xC5:
-				output[i] = 0x8F;
-				break;
-			case 0xC9:
-				output[i] = 0x90;
-				break;
-			case 0xE6:
-				output[i] = 0x91;
-				break;
-			case 0xC6:
-				output[i] = 0x92;
-				break;
-			case 0xF4:
-				output[i] = 0x93;
-				break;
-			case 0xF6:
-				output[i] = 0x94;
-				break;
-			case 0xF2:
-				output[i] = 0x95;
-				break;
-			case 0xFB:
-				output[i] = 0x96;
-				break;
-			case 0xF9:
-				output[i] = 0x97;
-				break;
-			case 0xFF:
-				output[i] = 0x98;
-				break;
-			case 0xD6:
-				output[i] = 0x99;
-				break;
-			case 0xDC:
-				output[i] = 0x9A;
-				break;
-			case 0xA2:
-				output[i] = 0x9B;
-				break;
-			case 0xA3:
-				output[i] = 0x9C;
-				break;
-			case 0xA5:
-				output[i] = 0x9D;
-				break;
-			case 0x20A7:
-				output[i] = 0x9E;
-				break;
-			case 0x192:
-				output[i] = 0x9F;
-				break;
-			case 0xE1:
-				output[i] = 0xA0;
-				break;
-			case 0xED:
-				output[i] = 0xA1;
-				break;
-			case 0xF3:
-				output[i] = 0xA2;
-				break;
-			case 0xFA:
-				output[i] = 0xA3;
-				break;
-			case 0xF1:
-				output[i] = 0xA4;
-				break;
-			case 0xD1:
-				output[i] = 0xA5;
-				break;
-			case 0xAA:
-				output[i] = 0xA6;
-				break;
-			case 0xBA:
-				output[i] = 0xA7;
-				break;
-			case 0xBF:
-				output[i] = 0xA8;
-				break;
-			case 0x2310:
-				output[i] = 0xA9;
-				break;
-			case 0xAC:
-				output[i] = 0xAA;
-				break;
-			case 0xBD:
-				output[i] = 0xAB;
-				break;
-			case 0xBC:
-				output[i] = 0xAC;
-				break;
-			case 0xA1:
-				output[i] = 0xAD;
-				break;
-			case 0xAB:
-				output[i] = 0xAE;
-				break;
-			case 0xBB:
-				output[i] = 0xAF;
-				break;
-			case 0x2591:
-				output[i] = 0xB0;
-				break;
-			case 0x2592:
-				output[i] = 0xB1;
-				break;
-			case 0x2593:
-				output[i] = 0xB2;
-				break;
-			case 0x2502:
-				output[i] = 0xB3;
-				break;
-			case 0x2524:
-				output[i] = 0xB4;
-				break;
-			case 0x2561:
-				output[i] = 0xB5;
-				break;
-			case 0x2562:
-				output[i] = 0xB6;
-				break;
-			case 0x2556:
-				output[i] = 0xB7;
-				break;
-			case 0x2555:
-				output[i] = 0xB8;
-				break;
-			case 0x2563:
-				output[i] = 0xB9;
-				break;
-			case 0x2551:
-				output[i] = 0xBA;
-				break;
-			case 0x2557:
-				output[i] = 0xBB;
-				break;
-			case 0x255D:
-				output[i] = 0xBC;
-				break;
-			case 0x255C:
-				output[i] = 0xBD;
-				break;
-			case 0x255B:
-				output[i] = 0xBE;
-				break;
-			case 0x2510:
-				output[i] = 0xBF;
-				break;
-			case 0x2514:
-				output[i] = 0xC0;
-				break;
-			case 0x2534:
-				output[i] = 0xC1;
-				break;
-			case 0x252C:
-				output[i] = 0xC2;
-				break;
-			case 0x251C:
-				output[i] = 0xC3;
-				break;
-			case 0x2500:
-				output[i] = 0xC4;
-				break;
-			case 0x253C:
-				output[i] = 0xC5;
-				break;
-			case 0x255E:
-				output[i] = 0xC6;
-				break;
-			case 0x255F:
-				output[i] = 0xC7;
-				break;
-			case 0x255A:
-				output[i] = 0xC8;
-				break;
-			case 0x2554:
-				output[i] = 0xC9;
-				break;
-			case 0x2569:
-				output[i] = 0xCA;
-				break;
-			case 0x2566:
-				output[i] = 0xCB;
-				break;
-			case 0x2560:
-				output[i] = 0xCC;
-				break;
-			case 0x2550:
-				output[i] = 0xCD;
-				break;
-			case 0x256C:
-				output[i] = 0xCE;
-				break;
-			case 0x2567:
-				output[i] = 0xCF;
-				break;
-			case 0x2568:
-				output[i] = 0xD0;
-				break;
-			case 0x2564:
-				output[i] = 0xD1;
-				break;
-			case 0x2565:
-				output[i] = 0xD2;
-				break;
-			case 0x2559:
-				output[i] = 0xD3;
-				break;
-			case 0x2558:
-				output[i] = 0xD4;
-				break;
-			case 0x2552:
-				output[i] = 0xD5;
-				break;
-			case 0x2553:
-				output[i] = 0xD6;
-				break;
-			case 0x256B:
-				output[i] = 0xD7;
-				break;
-			case 0x256A:
-				output[i] = 0xD8;
-				break;
-			case 0x2518:
-				output[i] = 0xD9;
-				break;
-			case 0x250C:
-				output[i] = 0xDA;
-				break;
-			case 0x2588:
-				output[i] = 0xDB;
-				break;
-			case 0x2584:
-				output[i] = 0xDC;
-				break;
-			case 0x258C:
-				output[i] = 0xDD;
-				break;
-			case 0x2590:
-				output[i] = 0xDE;
-				break;
-			case 0x2580:
-				output[i] = 0xDF;
-				break;
-			case 0x3B1:
-				output[i] = 0xE0;
-				break;
-			case 0xDF:
-				output[i] = 0xE1;
-				break;
-			case 0x393:
-				output[i] = 0xE2;
-				break;
-			case 0x3C0:
-				output[i] = 0xE3;
-				break;
-			case 0x3A3:
-				output[i] = 0xE4;
-				break;
-			case 0x3C3:
-				output[i] = 0xE5;
-				break;
-			case 0xB5:
-				output[i] = 0xE6;
-				break;
-			case 0x3C4:
-				output[i] = 0xE7;
-				break;
-			case 0x3A6:
-				output[i] = 0xE8;
-				break;
-			case 0x398:
-				output[i] = 0xE9;
-				break;
-			case 0x3A9:
-				output[i] = 0xEA;
-				break;
-			case 0x3B4:
-				output[i] = 0xEB;
-				break;
-			case 0x221E:
-				output[i] = 0xEC;
-				break;
-			case 0x3C6:
-				output[i] = 0xED;
-				break;
-			case 0x3B5:
-				output[i] = 0xEE;
-				break;
-			case 0x2229:
-				output[i] = 0xEF;
-				break;
-			case 0x2261:
-				output[i] = 0xF0;
-				break;
-			case 0xB1:
-				output[i] = 0xF1;
-				break;
-			case 0x2265:
-				output[i] = 0xF2;
-				break;
-			case 0x2264:
-				output[i] = 0xF3;
-				break;
-			case 0x2320:
-				output[i] = 0xF4;
-				break;
-			case 0x2321:
-				output[i] = 0xF5;
-				break;
-			case 0xF7:
-				output[i] = 0xF6;
-				break;
-			case 0x2248:
-				output[i] = 0xF7;
-				break;
-			case 0xB0:
-				output[i] = 0xF8;
-				break;
-			case 0x2219:
-				output[i] = 0xF9;
-				break;
-			case 0xB7:
-				output[i] = 0xFA;
-				break;
-			case 0x221A:
-				output[i] = 0xFB;
-				break;
-			case 0x207F:
-				output[i] = 0xFC;
-				break;
-			case 0xB2:
-				output[i] = 0xFD;
-				break;
-			case 0x25A0:
-				output[i] = 0xFE;
-				break;
-			case 0xA0:
-				output[i] = 0xFF;
-				break;
+			switch (c >> 8) {
+			CASE_MISSING_IS_ERROR(0)
+			CASE_MISSING_IS_ERROR(1)
+			CASE_MISSING_IS_ERROR(3)
+			CASE_MISSING_IS_ERROR(20)
+			CASE_MISSING_IS_ERROR(22)
+			CASE_MISSING_IS_ERROR(23)
+			CASE_MISSING_IS_ERROR(25)
 			default:
-				if (lossy)
+				if (lossy) {
 					output[i] = '?';
-				else
+					continue;
+				} else
 					return false;
-
-				break;
 			}
 		} else
 			output[i] = (unsigned char)c;
 	}
 
 	return true;
 }