examples/PIPS/antiword/src/chartrans.c

/*
 * chartrans.c
 * Copyright (C) 1999-2004 A.J. van Os; Released under GNU GPL
 *
 * Description:
 * Translate Word characters to local representation
 */

#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#if defined(__STDC_ISO_10646__)
#include <wctype.h>
#endif /* __STDC_ISO_10646__ */
#include "antiword.h"

static const USHORT usCp850[] = {       /* DOS implementation of Latin1 */
        0x00c7, 0x00fc, 0x00e9, 0x00e2, 0x00e4, 0x00e0, 0x00e5, 0x00e7,
        0x00ea, 0x00eb, 0x00e8, 0x00ef, 0x00ee, 0x00ec, 0x00c4, 0x00c5,
        0x00c9, 0x00e6, 0x00c6, 0x00f4, 0x00f6, 0x00f2, 0x00fb, 0x00f9,
        0x00ff, 0x00d6, 0x00dc, 0x00f8, 0x00a3, 0x00d8, 0x00d7, 0x0192,
        0x00e1, 0x00ed, 0x00f3, 0x00fa, 0x00f1, 0x00d1, 0x00aa, 0x00ba,
        0x00bf, 0x00ae, 0x00ac, 0x00bd, 0x00bc, 0x00a1, 0x00ab, 0x00bb,
        0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x00c1, 0x00c2, 0x00c0,
        0x00a9, 0x2563, 0x2551, 0x2557, 0x255d, 0x00a2, 0x00a5, 0x2510,
        0x2514, 0x2534, 0x252c, 0x251c, 0x2500, 0x253c, 0x00e3, 0x00c3,
        0x255a, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256c, 0x00a4,
        0x00f0, 0x00d0, 0x00ca, 0x00cb, 0x00c8, 0x0131, 0x00cd, 0x00ce,
        0x00cf, 0x2518, 0x250c, 0x2588, 0x2584, 0x00a6, 0x00cc, 0x2580,
        0x00d3, 0x00df, 0x00d4, 0x00d2, 0x00f5, 0x00d5, 0x00b5, 0x00fe,
        0x00de, 0x00da, 0x00db, 0x00d9, 0x00fd, 0x00dd, 0x00af, 0x00b4,
        0x00ad, 0x00b1, 0x2017, 0x00be, 0x00b6, 0x00a7, 0x00f7, 0x00b8,
        0x00b0, 0x00a8, 0x00b7, 0x00b9, 0x00b3, 0x00b2, 0x25a0, 0x00a0,
};

static const USHORT usCp1250[] = {      /* Windows implementation of Latin2 */
        0x20ac, 0x003f, 0x201a, 0x003f, 0x201e, 0x2026, 0x2020, 0x2021,
        0x003f, 0x2030, 0x0160, 0x2039, 0x015a, 0x0164, 0x017d, 0x0179,
        0x003f, 0x2018, 0x2019, 0x201c, 0x201d, 0x2022, 0x2013, 0x2014,
        0x003f, 0x2122, 0x0161, 0x203a, 0x015b, 0x0165, 0x017e, 0x017a,
        0x00a0, 0x02c7, 0x02d8, 0x0141, 0x00a4, 0x0104, 0x00a6, 0x00a7,
        0x00a8, 0x00a9, 0x015e, 0x00ab, 0x00ac, 0x00ad, 0x00ae, 0x017b,
        0x00b0, 0x00b1, 0x02db, 0x0142, 0x00b4, 0x00b5, 0x00b6, 0x00b7,
        0x00b8, 0x0105, 0x015f, 0x00bb, 0x013d, 0x02dd, 0x013e, 0x017c,
        0x0154, 0x00c1, 0x00c2, 0x0102, 0x00c4, 0x0139, 0x0106, 0x00c7,
        0x010c, 0x00c9, 0x0118, 0x00cb, 0x011a, 0x00cd, 0x00ce, 0x010e,
        0x0110, 0x0143, 0x0147, 0x00d3, 0x00d4, 0x0150, 0x00d6, 0x00d7,
        0x0158, 0x016e, 0x00da, 0x0170, 0x00dc, 0x00dd, 0x0162, 0x00df,
        0x0155, 0x00e1, 0x00e2, 0x0103, 0x00e4, 0x013a, 0x0107, 0x00e7,
        0x010d, 0x00e9, 0x0119, 0x00eb, 0x011b, 0x00ed, 0x00ee, 0x010f,
        0x0111, 0x0144, 0x0148, 0x00f3, 0x00f4, 0x0151, 0x00f6, 0x00f7,
        0x0159, 0x016f, 0x00fa, 0x0171, 0x00fc, 0x00fd, 0x0163, 0x02d9,
};

static const USHORT usCp1251[] = {      /* Windows implementation of Cyrillic */
        0x0402, 0x0403, 0x201a, 0x0453, 0x201e, 0x2026, 0x2020, 0x2021,
        0x20ac, 0x2030, 0x0409, 0x2039, 0x040a, 0x040c, 0x040b, 0x040f,
        0x0452, 0x2018, 0x2019, 0x201c, 0x201d, 0x2022, 0x2013, 0x2014,
        0x00f3, 0x2122, 0x0459, 0x203a, 0x045a, 0x045c, 0x045b, 0x045f,
        0x00a0, 0x040e, 0x045e, 0x0408, 0x00a4, 0x0490, 0x00a6, 0x00a7,
        0x0401, 0x00a9, 0x0404, 0x00ab, 0x00ac, 0x00ad, 0x00ae, 0x0407,
        0x00b0, 0x00b1, 0x0406, 0x0456, 0x0491, 0x00b5, 0x00b6, 0x00b7,
        0x0451, 0x2116, 0x0454, 0x00bb, 0x0458, 0x0405, 0x0455, 0x0457,
        0x0410, 0x0411, 0x0412, 0x0413, 0x0414, 0x0415, 0x0416, 0x0417,
        0x0418, 0x0419, 0x041a, 0x041b, 0x041c, 0x041d, 0x041e, 0x041f,
        0x0420, 0x0421, 0x0422, 0x0423, 0x0424, 0x0425, 0x0426, 0x0427,
        0x0428, 0x0429, 0x042a, 0x042b, 0x042c, 0x042d, 0x042e, 0x042f,
        0x0430, 0x0431, 0x0432, 0x0433, 0x0434, 0x0435, 0x0436, 0x0437,
        0x0438, 0x0439, 0x043a, 0x043b, 0x043c, 0x043d, 0x043e, 0x043f,
        0x0440, 0x0441, 0x0442, 0x0443, 0x0444, 0x0445, 0x0446, 0x0447,
        0x0448, 0x0449, 0x044a, 0x044b, 0x044c, 0x044d, 0x044e, 0x044f,
};

static const USHORT usCp1252[] = {      /* Windows implementation of Latin1 */
        0x20ac, 0x003f, 0x201a, 0x0192, 0x201e, 0x2026, 0x2020, 0x2021,
        0x02c6, 0x2030, 0x0160, 0x2039, 0x0152, 0x003f, 0x017d, 0x003f,
        0x003f, 0x2018, 0x2019, 0x201c, 0x201d, 0x2022, 0x2013, 0x2014,
        0x02dc, 0x2122, 0x0161, 0x203a, 0x0153, 0x003f, 0x017e, 0x0178,
        0x00a0, 0x00a1, 0x00a2, 0x00a3, 0x00a4, 0x00a5, 0x00a6, 0x00a7,
        0x00a8, 0x00a9, 0x00aa, 0x00ab, 0x00ac, 0x00ad, 0x00ae, 0x00af,
        0x00b0, 0x00b1, 0x00b2, 0x00b3, 0x00b4, 0x00b5, 0x00b6, 0x00b7,
        0x00b8, 0x00b9, 0x00ba, 0x00bb, 0x00bc, 0x00bd, 0x00be, 0x00bf,
        0x00c0, 0x00c1, 0x00c2, 0x00c3, 0x00c4, 0x00c5, 0x00c6, 0x00c7,
        0x00c8, 0x00c9, 0x00ca, 0x00cb, 0x00cc, 0x00cd, 0x00ce, 0x00cf,
        0x00d0, 0x00d1, 0x00d2, 0x00d3, 0x00d4, 0x00d5, 0x00d6, 0x00d7,
        0x00d8, 0x00d9, 0x00da, 0x00db, 0x00dc, 0x00dd, 0x00de, 0x00df,
        0x00e0, 0x00e1, 0x00e2, 0x00e3, 0x00e4, 0x00e5, 0x00e6, 0x00e7,
        0x00e8, 0x00e9, 0x00ea, 0x00eb, 0x00ec, 0x00ed, 0x00ee, 0x00ef,
        0x00f0, 0x00f1, 0x00f2, 0x00f3, 0x00f4, 0x00f5, 0x00f6, 0x00f7,
        0x00f8, 0x00f9, 0x00fa, 0x00fb, 0x00fc, 0x00fd, 0x00fe, 0x00ff,
};

static const USHORT usMacRoman[] = {    /* Apple implementation of Latin1 */
        0x00c4, 0x00c5, 0x00c7, 0x00c9, 0x00d1, 0x00d6, 0x00dc, 0x00e1,
        0x00e0, 0x00e2, 0x00e4, 0x00e3, 0x00e5, 0x00e7, 0x00e9, 0x00e8,
        0x00ea, 0x00eb, 0x00ed, 0x00ec, 0x00ee, 0x00ef, 0x00f1, 0x00f3,
        0x00f2, 0x00f4, 0x00f6, 0x00f5, 0x00fa, 0x00f9, 0x00fb, 0x00fc,
        0x2020, 0x00b0, 0x00a2, 0x00a3, 0x00a7, 0x2022, 0x00b6, 0x00df,
        0x00ae, 0x00a9, 0x2122, 0x00b4, 0x00a8, 0x2260, 0x00c6, 0x00d8,
        0x221e, 0x00b1, 0x2264, 0x2265, 0x00a5, 0x00b5, 0x2202, 0x2211,
        0x220f, 0x03c0, 0x222b, 0x00aa, 0x00ba, 0x2126, 0x00e6, 0x00f8,
        0x00bf, 0x00a1, 0x00ac, 0x221a, 0x0192, 0x2248, 0x2206, 0x00ab,
        0x00bb, 0x2026, 0x00a0, 0x00c0, 0x00c3, 0x00d5, 0x0152, 0x0153,
        0x2013, 0x2014, 0x201c, 0x201d, 0x2018, 0x2019, 0x00f7, 0x25ca,
        0x00ff, 0x0178, 0x2044, 0x00a4, 0x2039, 0x203a, 0xfb01, 0xfb02,
        0x2021, 0x00b7, 0x201a, 0x201e, 0x2030, 0x00c2, 0x00ca, 0x00c1,
        0x00cb, 0x00c8, 0x00cd, 0x00ce, 0x00cf, 0x00cc, 0x00d3, 0x00d4,
        0x003f, 0x00d2, 0x00da, 0x00db, 0x00d9, 0x0131, 0x02c6, 0x02dc,
        0x00af, 0x02d8, 0x02d9, 0x02da, 0x00b8, 0x02dd, 0x02db, 0x02c7,
};

static const USHORT usPrivateArea[] = {
        0x0020, 0x0021, 0x2200, 0x0023, 0x2203, 0x0025, 0x0026, 0x220d,
        0x0028, 0x0029, 0x2217, 0x002b, 0x002c, 0x2212, 0x002e, 0x002f,
        0x0030, 0x0031, 0x0032, 0x0033, 0x0034, 0x0035, 0x0036, 0x0037,
        0x0038, 0x0039, 0x003a, 0x003b, 0x003c, 0x2019, 0x003e, 0x003f,
        0x201d, 0x201c, 0x0392, 0x03a7, 0x0394, 0x0395, 0x03a6, 0x0393,
        0x0397, 0x0399, 0x03d1, 0x039a, 0x039b, 0x039c, 0x039d, 0x039f,
        0x03a0, 0x0398, 0x03a1, 0x03a3, 0x03a4, 0x03a5, 0x03c2, 0x03a9,
        0x039e, 0x03a8, 0x0396, 0x005b, 0x2234, 0x005d, 0x22a5, 0x005f,
        0x003f, 0x03b1, 0x03b2, 0x03c7, 0x03b4, 0x03b5, 0x03c6, 0x03b3,
        0x03b7, 0x03b9, 0x03d5, 0x03ba, 0x03bb, 0x03bc, 0x03bd, 0x03bf,
        0x03c0, 0x03b8, 0x03c1, 0x03c3, 0x03c4, 0x03c5, 0x03d6, 0x03c9,
        0x03be, 0x03c8, 0x03b6, 0x007b, 0x007c, 0x007d, 0x223c, 0x003f,
        0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f,
        0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f,
        0x003f, 0x003f, 0x003f, 0x2022, 0x003f, 0x003f, 0x003f, 0x003f,
        0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f,
        0x20ac, 0x03d2, 0x2032, 0x2264, 0x2044, 0x221e, 0x0192, 0x2663,
        0x2666, 0x2665, 0x2660, 0x2194, 0x2190, 0x2191, 0x2192, 0x2193,
        0x00b0, 0x00b1, 0x2033, 0x2265, 0x00d7, 0x221d, 0x2202, 0x2022,
        0x00f7, 0x2260, 0x2261, 0x2248, 0x2026, 0x007c, 0x23af, 0x21b5,
        0x2135, 0x2111, 0x211c, 0x2118, 0x2297, 0x2295, 0x2205, 0x2229,
        0x222a, 0x2283, 0x2287, 0x2284, 0x2282, 0x2286, 0x2208, 0x2209,
        0x2220, 0x2207, 0x00ae, 0x00a9, 0x2122, 0x220f, 0x221a, 0x22c5,
        0x00ac, 0x2227, 0x2228, 0x21d4, 0x21d0, 0x21d1, 0x21d2, 0x21d3,
        0x22c4, 0x3008, 0x00ae, 0x00a9, 0x2122, 0x2211, 0x239b, 0x239c,
        0x239d, 0x23a1, 0x23a2, 0x23a3, 0x23a7, 0x23a8, 0x23a9, 0x23aa,
        0x003f, 0x3009, 0x222b, 0x2320, 0x23ae, 0x2321, 0x239e, 0x239f,
        0x23a0, 0x23a4, 0x23a5, 0x23a6, 0x23ab, 0x23ac, 0x23ad, 0x003f,
};

typedef struct char_table_tag {
        UCHAR   ucLocal;
        USHORT  usUnicode;
} char_table_type;

static char_table_type  atCharTable[256];
static size_t           tNextPosFree = 0;


/*
 * iCompare - compare two records
 *
 * Compares two records. For use by qsort(3C) and bsearch(3C).
 *
 * returns -1 if rec1 < rec2, 0 if rec1 == rec2, 1 if rec1 > rec2
 */
static int
iCompare(const void *pvRecord1, const void *pvRecord2)
{
        USHORT  usUnicode1, usUnicode2;

        usUnicode1 = ((char_table_type *)pvRecord1)->usUnicode;
        usUnicode2 = ((char_table_type *)pvRecord2)->usUnicode;

        if (usUnicode1 < usUnicode2) {
                return -1;
        }
        if (usUnicode1 > usUnicode2) {
                return 1;
        }
        return 0;
} /* end of iCompare */

/*
 * pGetCharTableRecord - get the character table record
 *
 * returns a pointer to the record when found, otherwise NULL
 */
static const char_table_type *
pGetCharTableRecord(USHORT usUnicode)
{
        char_table_type tKey;

        if (tNextPosFree == 0) {
                return NULL;
        }
        tKey.usUnicode = usUnicode;
        tKey.ucLocal = 0;
        return (char_table_type *)bsearch(&tKey,
                        atCharTable,
                        tNextPosFree, sizeof(atCharTable[0]),
                        iCompare);
} /* end of pGetCharTableRecord */

/*
 * ucGetBulletCharacter - get the local representation of the bullet
 */
UCHAR
ucGetBulletCharacter(conversion_type eConversionType, encoding_type eEncoding)
{
#if defined(__riscos)
        return 0x8f;
#else
        const char_table_type   *pRec;

        fail(eEncoding == encoding_utf_8);

        if (eEncoding == encoding_latin_1 &&
            (eConversionType == conversion_ps ||
             eConversionType == conversion_pdf)) {
                /* Ugly, but it makes the PostScript and PDF look better */
                return (UCHAR)143;
        }
        if (eConversionType != conversion_text &&
            eConversionType != conversion_fmt_text) {
                pRec = pGetCharTableRecord(UNICODE_BULLET);
                if (pRec != NULL) {
                        return pRec->ucLocal;
                }
                pRec = pGetCharTableRecord(UNICODE_BULLET_OPERATOR);
                if (pRec != NULL) {
                        return pRec->ucLocal;
                }
                pRec = pGetCharTableRecord(UNICODE_MIDDLE_DOT);
                if (pRec != NULL) {
                        return pRec->ucLocal;
                }
        }
        return (UCHAR)'.';
#endif /* __riscos */
} /* end of ucGetBulletCharacter */

/*
 * ucGetNbspCharacter - get the local representation of the non-breaking space
 */
UCHAR
ucGetNbspCharacter(void)
{
        const char_table_type   *pRec;

        pRec = pGetCharTableRecord(0x00a0);     /* Unicode non-breaking space */
        if (pRec == NULL) {
                DBG_MSG("Non-breaking space record not found");
                /* No value found, use the best guess */
                return (UCHAR)0xa0;
        }
        return pRec->ucLocal;
} /* end of ucGetNbspCharacter */

/*
 * bReadCharacterMappingTable - read the mapping table
 *
 * Read the character mapping table from file and have the contents sorted
 *
 * returns TRUE if successful, otherwise FALSE
 */
BOOL
bReadCharacterMappingTable(FILE *pFile)
{
        char    *pcTmp;
        ULONG   ulUnicode;
        UINT    uiLocal;
        int     iFields;
        char    szLine[81];

        if (pFile == NULL) {
                return FALSE;
        }

        /* Clean the table first */
        (void)memset(atCharTable, 0, sizeof(atCharTable));

        /* Fill the table */
        while (fgets(szLine, (int)sizeof(szLine), pFile)) {
                if (szLine[0] == '#' ||
                    szLine[0] == '\r' ||
                    szLine[0] == '\n') {
                        /* Comment or empty line */
                        continue;
                }
                iFields = sscanf(szLine, "%x %lx %*s", &uiLocal, &ulUnicode);
                if (iFields != 2) {
                        pcTmp = strchr(szLine, '\r');
                        if (pcTmp != NULL) {
                                *pcTmp = '\0';
                        }
                        pcTmp = strchr(szLine, '\n');
                        if (pcTmp != NULL) {
                                *pcTmp = '\0';
                        }
                        werr(0, "Syntax error in: '%s'", szLine);
                        continue;
                }
                if (uiLocal > 0xff || ulUnicode > 0xffff) {
                        werr(0, "Syntax error in: '%02x %04lx'",
                                        uiLocal, ulUnicode);
                        continue;
                }
                /* Store only the relevant entries */
                if (uiLocal != ulUnicode || uiLocal >= 0x80) {
                        atCharTable[tNextPosFree].ucLocal = (UCHAR)uiLocal;
                        atCharTable[tNextPosFree].usUnicode = (USHORT)ulUnicode;
                        tNextPosFree++;
                }
                if (tNextPosFree >= elementsof(atCharTable)) {
                        werr(0, "Too many entries in the character mapping "
                                "file. Ignoring the rest.");
                        break;
                }
        }

        if (tNextPosFree != 0) {
                DBG_HEX(atCharTable[0].usUnicode);
                DBG_HEX(atCharTable[tNextPosFree - 1].usUnicode);

                qsort(atCharTable,
                        tNextPosFree, sizeof(atCharTable[0]),
                        iCompare);

                DBG_HEX(atCharTable[0].usUnicode);
                DBG_HEX(atCharTable[tNextPosFree - 1].usUnicode);
        }

        return TRUE;
} /* end of bReadCharacterMappingTable */

/*
 * ulTranslateCharacters - Translate characters to local representation
 *
 * Translate all characters to local representation
 *
 * returns the translated character
 */
ULONG
ulTranslateCharacters(USHORT usChar, ULONG ulFileOffset, int iWordVersion,
        conversion_type eConversionType, encoding_type eEncoding,
        BOOL bUseMacCharSet)
{
        const char_table_type   *pTmp;
        const USHORT    *usCharSet;

        usCharSet = NULL;
        if (bUseMacCharSet) {
                /* Macintosh character set */
                usCharSet = usMacRoman;
        } else if (iWordVersion == 0) {
                /* DOS character set */
                usCharSet = usCp850;
        } else {
                /* Windows character set */
                switch (eEncoding) {
                case encoding_latin_2:
                        usCharSet = usCp1250;
                        break;
                case encoding_cyrillic:
                        usCharSet = usCp1251;
                        break;
                case encoding_latin_1:
                default:
                        usCharSet = usCp1252;
                        break;
                }
        }
        fail(usCharSet == NULL);
        if (usChar >= 0x80 && usChar <= 0x9f) {
                /* Translate implementation defined characters */
                usChar = usCharSet[usChar - 0x80];
        } else if (iWordVersion < 8 && usChar >= 0xa0 && usChar <= 0xff) {
                /* Translate old character set to Unixcode */
                usChar = usCharSet[usChar - 0x80];
        }

        /* Microsoft Unicode to real Unicode */
        if (usChar >= 0xf020 && usChar <= 0xf0ff) {
                DBG_HEX_C(usPrivateArea[usChar - 0xf020] == 0x003f, usChar);
                usChar = usPrivateArea[usChar - 0xf020];
        }

        /* Characters with a special meaning in Word */
        switch (usChar) {
        case IGNORE_CHARACTER:
        case FOOTNOTE_SEPARATOR:
        case FOOTNOTE_CONTINUATION:
        case ANNOTATION:
        case FRAME:
        case LINE_FEED:
        case WORD_SOFT_HYPHEN:
        case UNICODE_HYPHENATION_POINT:
                return IGNORE_CHARACTER;
        case PICTURE:
        case TABLE_SEPARATOR:
        case TAB:
        case HARD_RETURN:
        case PAGE_BREAK:
        case PAR_END:
        case COLUMN_FEED:
                return (ULONG)usChar;
        case FOOTNOTE_OR_ENDNOTE:
                NO_DBG_HEX(ulFileOffset);
                switch (eGetNotetype(ulFileOffset)) {
                case notetype_is_footnote:
                        return FOOTNOTE_CHAR;
                case notetype_is_endnote:
                        return ENDNOTE_CHAR;
                default:
                        return UNKNOWN_NOTE_CHAR;
                }
        case WORD_UNBREAKABLE_JOIN:
                return (ULONG)OUR_UNBREAKABLE_JOIN;
        default:
                break;
        }

        if (eEncoding != encoding_utf_8) {
                /* Latin characters in an oriental text */
                if (usChar >= 0xff01 && usChar <= 0xff5e) {
                        usChar -= 0xfee0;
                }
        }

        if (eEncoding == encoding_latin_1 &&
            (eConversionType == conversion_ps ||
             eConversionType == conversion_pdf)) {
                /* Ugly, but it makes the PostScript and PDF look better */
                switch (usChar) {
                case UNICODE_ELLIPSIS:
                        return 140;
                case UNICODE_TRADEMARK_SIGN:
                        return 141;
                case UNICODE_PER_MILLE_SIGN:
                        return 142;
                case UNICODE_BULLET:
                case UNICODE_BULLET_OPERATOR:
                case UNICODE_BLACK_CLUB_SUIT:
                        return 143;
                case UNICODE_LEFT_SINGLE_QMARK:
                        return 144;
                case UNICODE_RIGHT_SINGLE_QMARK:
                        return 145;
                case UNICODE_SINGLE_LEFT_ANGLE_QMARK:
                        return 146;
                case UNICODE_SINGLE_RIGHT_ANGLE_QMARK:
                        return 147;
                case UNICODE_LEFT_DOUBLE_QMARK:
                        return 148;
                case UNICODE_RIGHT_DOUBLE_QMARK:
                        return 149;
                case UNICODE_DOUBLE_LOW_9_QMARK:
                        return 150;
                case UNICODE_EN_DASH:
                        return 151;
                case UNICODE_EM_DASH:
                        return 152;
                case UNICODE_MINUS_SIGN:
                        return 153;
                case UNICODE_CAPITAL_LIGATURE_OE:
                        return 154;
                case UNICODE_SMALL_LIGATURE_OE:
                        return 155;
                case UNICODE_DAGGER:
                        return 156;
                case UNICODE_DOUBLE_DAGGER:
                        return 157;
                case UNICODE_SMALL_LIGATURE_FI:
                        return 158;
                case UNICODE_SMALL_LIGATURE_FL:
                        return 159;
                default:
                        break;
                }
        }

        if (eConversionType == conversion_pdf) {
                if (eEncoding == encoding_latin_1) {
                        switch (usChar) {
                        case UNICODE_EURO_SIGN:
                                return 128;
                        default:
                                break;
                        }
                } else if (eEncoding == encoding_latin_2) {
                        switch (usChar) {
                        case UNICODE_CAPITAL_D_WITH_STROKE:
                        case UNICODE_SMALL_D_WITH_STROKE:
                                return 0x3f;
                        default:
                                break;
                        }
                }
        }

        if (usChar < 0x80) {
                /* US ASCII */
                if (usChar < 0x20 || usChar == 0x7f) {
                        /* Ignore control characters */
                        DBG_HEX(usChar);
                        DBG_FIXME();
                        return IGNORE_CHARACTER;
                }
                return (ULONG)usChar;
        }

        if (eEncoding == encoding_utf_8) {
                /* No need to convert Unicode characters */
                return (ULONG)usChar;
        }

        /* Unicode to local representation */
        pTmp = pGetCharTableRecord(usChar);
        if (pTmp != NULL) {
                DBG_HEX_C(usChar >= 0x7f && usChar <= 0x9f, usChar);
                return (ULONG)pTmp->ucLocal;
        }

        /* Fancy characters to simple US ASCII */
        switch (usChar) {
        case UNICODE_SMALL_F_HOOK:
                return (ULONG)'f';
        case UNICODE_GREEK_CAPITAL_CHI:
                return (ULONG)'X';
        case UNICODE_GREEK_SMALL_UPSILON:
                return (ULONG)'v';
        case UNICODE_MODIFIER_CIRCUMFLEX:
        case UNICODE_UPWARDS_ARROW:
                return (ULONG)'^';
        case UNICODE_SMALL_TILDE:
        case UNICODE_TILDE_OPERATOR:
                return (ULONG)'~';
        case UNICODE_EN_QUAD:
        case UNICODE_EM_QUAD:
        case UNICODE_EN_SPACE:
        case UNICODE_EM_SPACE:
        case UNICODE_THREE_PER_EM_SPACE:
        case UNICODE_FOUR_PER_EM_SPACE:
        case UNICODE_SIX_PER_EM_SPACE:
        case UNICODE_FIGURE_SPACE:
        case UNICODE_PUNCTUATION_SPACE:
        case UNICODE_THIN_SPACE:
        case UNICODE_NARROW_NO_BREAK_SPACE:
        case UNICODE_LIGHT_SHADE:
        case UNICODE_MEDIUM_SHADE:
        case UNICODE_DARK_SHADE:
                return (ULONG)' ';
        case UNICODE_LEFT_DOUBLE_QMARK:
        case UNICODE_RIGHT_DOUBLE_QMARK:
        case UNICODE_DOUBLE_LOW_9_QMARK:
        case UNICODE_DOUBLE_HIGH_REV_9_QMARK:
        case UNICODE_DOUBLE_PRIME:
                return (ULONG)'"';
        case UNICODE_LEFT_SINGLE_QMARK:
        case UNICODE_RIGHT_SINGLE_QMARK:
        case UNICODE_SINGLE_LOW_9_QMARK:
        case UNICODE_SINGLE_HIGH_REV_9_QMARK:
        case UNICODE_PRIME:
                return (ULONG)'\'';
        case UNICODE_HYPHEN:
        case UNICODE_NON_BREAKING_HYPHEN:
        case UNICODE_FIGURE_DASH:
        case UNICODE_EN_DASH:
        case UNICODE_EM_DASH:
        case UNICODE_HORIZONTAL_BAR:
        case UNICODE_MINUS_SIGN:
        case UNICODE_BD_LIGHT_HORIZONTAL:
        case UNICODE_BD_DOUBLE_HORIZONTAL:
                return (ULONG)'-';
        case UNICODE_DOUBLE_VERTICAL_LINE:
        case UNICODE_BD_LIGHT_VERTICAL:
        case UNICODE_BD_DOUBLE_VERTICAL:
                return (ULONG)'|';
        case UNICODE_DOUBLE_LOW_LINE:
                return (ULONG)'_';
        case UNICODE_DAGGER:
                return (ULONG)'+';
        case UNICODE_DOUBLE_DAGGER:
                return (ULONG)'#';
        case UNICODE_BULLET:
        case UNICODE_BULLET_OPERATOR:
        case UNICODE_BLACK_CLUB_SUIT:
                return (ULONG)ucGetBulletCharacter(eConversionType, eEncoding);
        case UNICODE_ONE_DOT_LEADER:
        case UNICODE_TWO_DOT_LEADER:
                return (ULONG)'.';
        case UNICODE_ELLIPSIS:
#if defined(__riscos)
                return (ULONG)OUR_ELLIPSIS;
#else
                if (ulFileOffset == 0) {
                        return (ULONG)OUR_ELLIPSIS;
                }
                return UNICODE_ELLIPSIS;
#endif /* __riscos */
        case UNICODE_DOUBLE_LEFT_ANGLE_QMARK:
        case UNICODE_TRIANGULAR_BULLET:
        case UNICODE_SINGLE_LEFT_ANGLE_QMARK:
        case UNICODE_LEFTWARDS_ARROW:
                return (ULONG)'<';
        case UNICODE_DOUBLE_RIGHT_ANGLE_QMARK:
        case UNICODE_SINGLE_RIGHT_ANGLE_QMARK:
        case UNICODE_RIGHTWARDS_ARROW:
                return (ULONG)'>';
        case UNICODE_UNDERTIE:
                return (ULONG)'-';
        case UNICODE_N_ARY_SUMMATION:
                return (ULONG)'S';
        case UNICODE_EURO_SIGN:
                return (ULONG)'E';
        case UNICODE_CIRCLE:
        case UNICODE_SQUARE:
                return (ULONG)'O';
        case UNICODE_DIAMOND:
                return (ULONG)OUR_DIAMOND;
        case UNICODE_NUMERO_SIGN:
                return (ULONG)'N';
        case UNICODE_KELVIN_SIGN:
                return (ULONG)'K';
        case UNICODE_DOWNWARDS_ARROW:
                return (ULONG)'v';
        case UNICODE_FRACTION_SLASH:
        case UNICODE_DIVISION_SLASH:
                return (ULONG)'/';
        case UNICODE_ASTERISK_OPERATOR:
                return (ULONG)'*';
        case UNICODE_RATIO:
                return (ULONG)':';
        case UNICODE_BD_LIGHT_DOWN_RIGHT:
        case UNICODE_BD_LIGHT_DOWN_AND_LEFT:
        case UNICODE_BD_LIGHT_UP_AND_RIGHT:
        case UNICODE_BD_LIGHT_UP_AND_LEFT:
        case UNICODE_BD_LIGHT_VERTICAL_AND_RIGHT:
        case UNICODE_BD_LIGHT_VERTICAL_AND_LEFT:
        case UNICODE_BD_LIGHT_DOWN_AND_HORIZONTAL:
        case UNICODE_BD_LIGHT_UP_AND_HORIZONTAL:
        case UNICODE_BD_LIGHT_VERTICAL_AND_HORIZONTAL:
        case UNICODE_BD_DOUBLE_DOWN_AND_RIGHT:
        case UNICODE_BD_DOUBLE_DOWN_AND_LEFT:
        case UNICODE_BD_DOUBLE_UP_AND_RIGHT:
        case UNICODE_BD_DOUBLE_UP_AND_LEFT:
        case UNICODE_BD_DOUBLE_VERTICAL_AND_RIGHT:
        case UNICODE_BD_DOUBLE_VERTICAL_AND_LEFT:
        case UNICODE_BD_DOUBLE_DOWN_AND_HORIZONTAL:
        case UNICODE_BD_DOUBLE_UP_AND_HORIZONTAL:
        case UNICODE_BD_DOUBLE_VERTICAL_AND_HORIZONTAL:
        case UNICODE_BLACK_SQUARE:
                return (ULONG)'+';
        case UNICODE_HAIR_SPACE:
        case UNICODE_ZERO_WIDTH_SPACE:
        case UNICODE_ZERO_WIDTH_NON_JOINER:
        case UNICODE_ZERO_WIDTH_JOINER:
        case UNICODE_LEFT_TO_RIGHT_MARK:
        case UNICODE_RIGHT_TO_LEFT_MARK:
        case UNICODE_LEFT_TO_RIGHT_EMBEDDING:
        case UNICODE_RIGHT_TO_LEFT_EMBEDDING:
        case UNICODE_POP_DIRECTIONAL_FORMATTING:
        case UNICODE_LEFT_TO_RIGHT_OVERRIDE:
        case UNICODE_RIGHT_TO_LEFT_OVERRIDE:
        case UNICODE_ZERO_WIDTH_NO_BREAK_SPACE:
                return IGNORE_CHARACTER;
        default:
                break;
        }

        if (usChar == UNICODE_TRADEMARK_SIGN) {
                /*
                 * No local representation, it doesn't look like anything in
                 * US-ASCII and a question mark does more harm than good.
                 */
                return IGNORE_CHARACTER;
        }

        if (usChar >= 0xa0 && usChar <= 0xff) {
                /* Before Word 97, Word did't use Unicode */
                return (ULONG)usChar;
        }

        DBG_HEX_C(usChar < 0x3000 || usChar >= 0xd800, ulFileOffset);
        DBG_HEX_C(usChar < 0x3000 || usChar >= 0xd800, usChar);
        DBG_MSG_C(usChar >= 0xe000 && usChar < 0xf900, "Private Use Area");

        /* Untranslated Unicode character */
        return 0x3f;
} /* end of ulTranslateCharacters */

/*
 * ulToUpper - convert letter to upper case
 *
 * This function converts a letter to upper case. Unlike toupper(3) this
 * function is independent from the settings of locale. This comes in handy
 * for people who have to read Word documents in more than one language or
 * contain more than one language.
 *
 * returns the converted letter, or ulChar if the conversion was not possible.
 */
ULONG
ulToUpper(ULONG ulChar)
{
        if (ulChar < 0x80) {
                /* US ASCII: use standard function */
                return (ULONG)toupper((int)ulChar);
        }
        if (ulChar >= 0xe0 && ulChar <= 0xfe && ulChar != 0xf7) {
                /*
                 * Lower case accented characters
                 * 0xf7 is Division sign; 0xd7 is Multiplication sign
                 * 0xff is y with diaeresis; 0xdf is Sharp s
                 */
                return ulChar & ~0x20;
        }
#if defined(__STDC_ISO_10646__)
        /*
         * If this is ISO C99 and all locales have wchar_t = ISO 10646
         * (e.g., glibc 2.2 or newer), then use standard function
         */
        if (ulChar > 0xff) {
                return (ULONG)towupper((wint_t)ulChar);
        }
#endif /* __STDC_ISO_10646__ */
        return ulChar;
} /* end of ulToUpper */

---