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OS/2 Shareware BBS: 5 Edit
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05-Edit.zip
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anwor032.zip
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antiword.0.32
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fonts.c
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2001-07-21
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/*
* fonts.c
* Copyright (C) 1998-2000 A.J. van Os; Released under GPL
*
* Description:
* Functions to deal with fonts (generic)
*/
#include <ctype.h>
#include <string.h>
#include "antiword.h"
/* Font Translation Table */
static size_t tFontTableRecords = 0;
static font_table_type *pFontTable = NULL;
/*
* Find the given font in the font table
*
* returns the index into the FontTable, -1 if not found
*/
int
iGetFontByNumber(int iWordFontnumber, unsigned char ucFontstyle)
{
int iIndex;
for (iIndex = 0; iIndex < (int)tFontTableRecords; iIndex++) {
if (iWordFontnumber ==
(int)pFontTable[iIndex].ucWordFontnumber &&
ucFontstyle == pFontTable[iIndex].ucFontstyle &&
pFontTable[iIndex].szOurFontname[0] != '\0') {
return iIndex;
}
}
return -1;
} /* end of iGetFontByNumber */
/*
* szGetOurFontName - Get our font name
*
* return our font name from the given index, NULL if not found
*/
const char *
szGetOurFontname(int iIndex)
{
if (iIndex < 0 || iIndex >= (int)tFontTableRecords) {
return NULL;
}
return pFontTable[iIndex].szOurFontname;
} /* end of szGetOurFontname */
/*
* Find the given font in the font table
*
* returns the Word font number, -1 if not found
*/
int
iFontname2Fontnumber(const char *szOurFontname, unsigned char ucFontstyle)
{
int iIndex;
for (iIndex = 0; iIndex < (int)tFontTableRecords; iIndex++) {
if (pFontTable[iIndex].ucFontstyle == ucFontstyle &&
STREQ(pFontTable[iIndex].szOurFontname, szOurFontname)) {
return (int)pFontTable[iIndex].ucWordFontnumber;
}
}
return -1;
} /* end of iGetFontByName */
/*
* See if the fontname from the Word file matches the fontname from the
* font translation file.
* If iBytesPerChar is one than szWord is in ISO-8859-x (Word 6/7),
* if iBytesPerChar is two than szWord is in Unicode (Word 8/97).
*/
static BOOL
bFontEqual(const char *szWord, const char *szTable, int iBytesPerChar)
{
const char *pcTmp1, *pcTmp2;
fail(szWord == NULL || szTable == NULL);
fail(iBytesPerChar != 1 && iBytesPerChar != 2);
for (pcTmp1 = szWord, pcTmp2 = szTable;
*pcTmp1 != '\0';
pcTmp1 += iBytesPerChar, pcTmp2++) {
if (ulToUpper((unsigned long)*pcTmp1) !=
ulToUpper((unsigned long)*pcTmp2)) {
return FALSE;
}
}
return *pcTmp2 == '\0';
} /* end of bFontEqual */
/*
* vCreateFontTable - Create and initialize the internal font table
*/
static void
vCreateFontTable(void)
{
font_table_type *pTmp;
size_t tSize;
int iNbr;
if (tFontTableRecords == 0) {
pFontTable = NULL;
return;
}
/* Create the font table */
tSize = tFontTableRecords * sizeof(*pFontTable);
pFontTable = xmalloc(tSize);
/* Initialize the font table */
(void)memset(pFontTable, 0, tSize);
for (iNbr = 0, pTmp = pFontTable;
pTmp < pFontTable + tFontTableRecords;
iNbr++, pTmp++) {
pTmp->ucWordFontnumber = (unsigned char)(iNbr / 4);
switch (iNbr % 4) {
case 0:
pTmp->ucFontstyle = FONT_REGULAR;
break;
case 1:
pTmp->ucFontstyle = FONT_BOLD;
break;
case 2:
pTmp->ucFontstyle = FONT_ITALIC;
break;
case 3:
pTmp->ucFontstyle = FONT_BOLD|FONT_ITALIC;
break;
default:
DBG_DEC(iNbr);
break;
}
}
} /* end of vCreateFontTable */
/*
* vMinimizeFontTable - make the font table as small as possible
*/
static void
vMinimizeFontTable(void)
{
const font_block_type *pFont;
font_table_type *pTmp;
int iUnUsed;
BOOL bMustAddTableFont;
NO_DBG_MSG("vMinimizeFontTable");
if (pFontTable == NULL || tFontTableRecords == 0) {
return;
}
#if 0
DBG_MSG("Before");
DBG_DEC(tFontTableRecords);
for (pTmp = pFontTable;
pTmp < pFontTable + tFontTableRecords;
pTmp++) {
DBG_DEC(pTmp->ucWordFontnumber);
DBG_HEX(pTmp->ucFontstyle);
DBG_MSG(pTmp->szWordFontname);
DBG_MSG(pTmp->szOurFontname);
}
#endif /* DEBUG */
/* Default font/style is by definition in use */
pFontTable[0].ucInUse = 1;
/* See which fonts/styles are really being used */
bMustAddTableFont = TRUE;
pFont = NULL;
while((pFont = pGetNextFontInfoListItem(pFont)) != NULL) {
pTmp = pFontTable + 4 * (int)pFont->ucFontnumber;
if (bIsBold(pFont->ucFontstyle)) {
pTmp++;
}
if (bIsItalic(pFont->ucFontstyle)) {
pTmp += 2;
}
if (pTmp >= pFontTable + tFontTableRecords) {
continue;
}
if (STREQ(pTmp->szOurFontname, TABLE_FONT)) {
/* The table font is already present */
bMustAddTableFont = FALSE;
}
pTmp->ucInUse = 1;
}
/* Remove the unused font entries from the font table */
iUnUsed = 0;
for (pTmp = pFontTable;
pTmp < pFontTable + tFontTableRecords;
pTmp++) {
if (pTmp->ucInUse == 0) {
iUnUsed++;
continue;
}
if (iUnUsed > 0) {
fail(pTmp - iUnUsed <= pFontTable);
*(pTmp - iUnUsed) = *pTmp;
}
}
tFontTableRecords -= (size_t)iUnUsed;
if (bMustAddTableFont) {
pTmp = pFontTable + tFontTableRecords;
pTmp->ucWordFontnumber = (pTmp - 1)->ucWordFontnumber + 1;
pTmp->ucFontstyle = FONT_REGULAR;
pTmp->ucInUse = 1;
strcpy(pTmp->szWordFontname, "Extra Table Font");
strcpy(pTmp->szOurFontname, TABLE_FONT);
tFontTableRecords++;
iUnUsed--;
}
if (iUnUsed > 0) {
/* Resize the font table */
pFontTable = xrealloc(pFontTable,
tFontTableRecords * sizeof(*pFontTable));
}
#if 0
/* Report the used but untranslated fontnames */
for (pTmp = pFontTable;
pTmp < pFontTable + tFontTableRecords;
pTmp++) {
if (pTmp->szOurFontname[0] == '\0') {
DBG_MSG(pTmp->szWordFontname);
werr(0, "%s is not in the FontNames file",
pTmp->szWordFontname);
}
}
#endif /* 0 */
#if defined(DEBUG)
DBG_MSG("After");
DBG_DEC(tFontTableRecords);
for (pTmp = pFontTable;
pTmp < pFontTable + tFontTableRecords;
pTmp++) {
DBG_DEC(pTmp->ucWordFontnumber);
DBG_HEX(pTmp->ucFontstyle);
DBG_MSG(pTmp->szWordFontname);
DBG_MSG(pTmp->szOurFontname);
}
#endif /* DEBUG */
} /* end of vMinimizeFontTable */
/*
* bReadFontFile - read and check a line from the font translation file
*
* returns TRUE when a correct line has been read, otherwise FALSE
*/
static BOOL
bReadFontFile(FILE *pFontTableFile, char *szWordFont,
int *piItalic, int *piBold, char *szOurFont, int *piSpecial)
{
char *pcTmp;
int iFields;
char szLine[81];
fail(szWordFont == NULL || szOurFont == NULL);
fail(piItalic == NULL || piBold == NULL || piSpecial == NULL);
while (fgets(szLine, (int)sizeof(szLine), pFontTableFile) != NULL) {
if (szLine[0] == '#' ||
szLine[0] == '\n' ||
szLine[0] == '\r') {
continue;
}
iFields = sscanf(szLine, "%[^,],%d,%d,%1s%[^,],%d",
szWordFont, piItalic, piBold,
&szOurFont[0], &szOurFont[1], piSpecial);
if (iFields != 6) {
pcTmp = strchr(szLine, '\r');
if (pcTmp != NULL) {
*pcTmp = '\0';
}
pcTmp = strchr(szLine, '\n');
if (pcTmp != NULL) {
*pcTmp = '\0';
}
DBG_DEC(iFields);
werr(0, "Syntax error in: '%s'", szLine);
continue;
}
if (strlen(szWordFont) >=
sizeof(pFontTable[0].szWordFontname) ||
strlen(szOurFont) >=
sizeof(pFontTable[0].szOurFontname)) {
continue;
}
/* The current line passed all the tests */
return TRUE;
}
return FALSE;
} /* end of bReadFontFile */
/*
* vCreate6FontTable - create a font table from Word 6/7
*/
void
vCreate6FontTable(FILE *pFile, long lStartBlock,
const long *alBBD, size_t tBBDLen,
const unsigned char *aucHeader)
{
FILE *pFontTableFile;
font_table_type *pTmp;
char *szFont, *szAltFont;
unsigned char *aucBuffer;
long lBeginFontInfo;
size_t tFontInfoLen;
int iPos, iRecLen, iOffsetAltName;
int iBold, iItalic, iSpecial;
char szWordFont[81], szOurFont[81];
fail(pFile == NULL || aucHeader == NULL);
fail(lStartBlock < 0);
fail(alBBD == NULL);
pFontTableFile = pOpenFontTableFile();
if (pFontTableFile == NULL) {
/* No translation table file, no translation table */
return;
}
lBeginFontInfo = (long)ulGetLong(0xd0, aucHeader);
DBG_HEX(lBeginFontInfo);
tFontInfoLen = (size_t)ulGetLong(0xd4, aucHeader);
DBG_DEC(tFontInfoLen);
fail(tFontInfoLen < 9);
aucBuffer = xmalloc(tFontInfoLen);
if (!bReadBuffer(pFile, lStartBlock,
alBBD, tBBDLen, BIG_BLOCK_SIZE,
aucBuffer, lBeginFontInfo, tFontInfoLen)) {
aucBuffer = xfree(aucBuffer);
(void)fclose(pFontTableFile);
return;
}
DBG_DEC(usGetWord(0, aucBuffer));
/* Compute the maximum number of entries in the font table */
tFontTableRecords = 0;
iPos = 2;
while (iPos + 6 < (int)tFontInfoLen) {
iRecLen = (int)ucGetByte(iPos, aucBuffer);
NO_DBG_DEC(iRecLen);
iOffsetAltName = (int)ucGetByte(iPos + 5, aucBuffer);
NO_DBG_MSG(aucBuffer + iPos + 6);
NO_DBG_MSG_C(iOffsetAltName > 0,
aucBuffer + iPos + 6 + iOffsetAltName);
iPos += iRecLen + 1;
tFontTableRecords++;
}
tFontTableRecords *= 4; /* Regular, Bold, Italic and Bold/italic */
tFontTableRecords++; /* One extra for the table-font */
vCreateFontTable();
/* Read the font translation file */
while (bReadFontFile(pFontTableFile, szWordFont,
&iItalic, &iBold, szOurFont, &iSpecial)) {
pTmp = pFontTable;
if (iBold != 0) {
pTmp++;
}
if (iItalic != 0) {
pTmp += 2;
}
iPos = 2;
while (iPos + 6 < (int)tFontInfoLen) {
iRecLen = (int)ucGetByte(iPos, aucBuffer);
szFont = (char *)aucBuffer + iPos + 6;
iOffsetAltName = (int)ucGetByte(iPos + 5, aucBuffer);
if (iOffsetAltName <= 0) {
szAltFont = NULL;
} else {
szAltFont = szFont + iOffsetAltName;
NO_DBG_MSG(szFont);
NO_DBG_MSG(szAltFont);
}
if (bFontEqual(szFont, szWordFont, 1) ||
(szAltFont != NULL &&
bFontEqual(szAltFont, szWordFont, 1)) ||
(pTmp->szWordFontname[0] == '\0' &&
szWordFont[0] == '*' &&
szWordFont[1] == '\0')) {
strncpy(pTmp->szWordFontname, szFont,
sizeof(pTmp->szWordFontname) - 1);
pTmp->szWordFontname[sizeof(
pTmp->szWordFontname) - 1] = '\0';
strcpy(pTmp->szOurFontname, szOurFont);
}
pTmp += 4;
iPos += iRecLen + 1;
}
}
vMinimizeFontTable();
aucBuffer = xfree(aucBuffer);
(void)fclose(pFontTableFile);
} /* end of vCreate6FontTable */
/*
* vCreate8FontTable - create a font table from Word 8/97
*/
void
vCreate8FontTable(FILE *pFile, const pps_info_type *pPPS,
const long *alBBD, size_t tBBDLen, const long *alSBD, size_t tSBDLen,
const unsigned char *aucHeader)
{
FILE *pFontTableFile;
font_table_type *pTmp;
const long *alBlockDepot;
char *szFont, *szAltFont;
unsigned char *aucBuffer;
long lTableSize, lTableStartBlock, lBeginFontInfo;
size_t tFontInfoLen, tBlockDepotLen, tBlockSize;
int iPos, iRecLen, iOffsetAltName;
int iBold, iItalic, iSpecial;
unsigned short usDocStatus;
char szWordFont[81], szOurFont[81];
fail(pFile == NULL || pPPS == NULL || aucHeader == NULL);
fail(alBBD == NULL || alSBD == NULL);
pFontTableFile = pOpenFontTableFile();
if (pFontTableFile == NULL) {
/* No translation table file, no translation table */
return;
}
lBeginFontInfo = (long)ulGetLong(0x112, aucHeader);
DBG_HEX(lBeginFontInfo);
tFontInfoLen = (size_t)ulGetLong(0x116, aucHeader);
DBG_DEC(tFontInfoLen);
fail(tFontInfoLen < 46);
/* Use 0Table or 1Table? */
usDocStatus = usGetWord(0x0a, aucHeader);
if (usDocStatus & BIT(9)) {
lTableStartBlock = pPPS->t1Table.lSb;
lTableSize = pPPS->t1Table.lSize;
} else {
lTableStartBlock = pPPS->t0Table.lSb;
lTableSize = pPPS->t0Table.lSize;
}
DBG_DEC(lTableStartBlock);
if (lTableStartBlock < 0) {
DBG_DEC(lTableStartBlock);
DBG_MSG("No fontname table");
return;
}
DBG_HEX(lTableSize);
if (lTableSize < MIN_SIZE_FOR_BBD_USE) {
/* Use the Small Block Depot */
alBlockDepot = alSBD;
tBlockDepotLen = tSBDLen;
tBlockSize = SMALL_BLOCK_SIZE;
} else {
/* Use the Big Block Depot */
alBlockDepot = alBBD;
tBlockDepotLen = tBBDLen;
tBlockSize = BIG_BLOCK_SIZE;
}
aucBuffer = xmalloc(tFontInfoLen);
if (!bReadBuffer(pFile, lTableStartBlock,
alBlockDepot, tBlockDepotLen, tBlockSize,
aucBuffer, lBeginFontInfo, tFontInfoLen)) {
aucBuffer = xfree(aucBuffer);
(void)fclose(pFontTableFile);
return;
}
NO_DBG_PRINT_BLOCK(aucBuffer, tFontInfoLen);
/* Get the maximum number of entries in the font table */
tFontTableRecords = (size_t)usGetWord(0, aucBuffer);
tFontTableRecords *= 4; /* Regular, Bold, Italic and Bold/italic */
tFontTableRecords++; /* One extra for the table-font */
vCreateFontTable();
/* Read the font translation file */
while (bReadFontFile(pFontTableFile, szWordFont,
&iItalic, &iBold, szOurFont, &iSpecial)) {
pTmp = pFontTable;
if (iBold != 0) {
pTmp++;
}
if (iItalic != 0) {
pTmp += 2;
}
iPos = 4;
while (iPos + 40 < (int)tFontInfoLen) {
iRecLen = (int)ucGetByte(iPos, aucBuffer);
szFont = (char *)aucBuffer + iPos + 40;
iOffsetAltName = (int)unilen(szFont);
if (iPos + 40 + iOffsetAltName + 4 >= iRecLen) {
szAltFont = NULL;
} else {
szAltFont = szFont + iOffsetAltName + 2;
NO_DBG_UNICODE(szFont);
NO_DBG_UNICODE(szAltFont);
}
if (bFontEqual(szFont, szWordFont, 2) ||
(szAltFont != NULL &&
bFontEqual(szAltFont, szWordFont, 2)) ||
(pTmp->szWordFontname[0] == '\0' &&
szWordFont[0] == '*' &&
szWordFont[1] == '\0')) {
(void)unincpy(pTmp->szWordFontname, szFont,
sizeof(pTmp->szWordFontname) - 1);
pTmp->szWordFontname[sizeof(
pTmp->szWordFontname) - 1] = '\0';
(void)strcpy(pTmp->szOurFontname, szOurFont);
}
pTmp += 4;
iPos += iRecLen + 1;
}
}
vMinimizeFontTable();
aucBuffer = xfree(aucBuffer);
(void)fclose(pFontTableFile);
} /* end of vCreate8FontTable */
void
vDestroyFontTable(void)
{
DBG_MSG("vDestroyFontTable");
pFontTable = xfree(pFontTable);
tFontTableRecords = 0;
} /* end of vDestroyFontTable */
/*
* pGetNextFontTableRecord
*
* returns the next record in the table or NULL if there is no next record
*/
const font_table_type *
pGetNextFontTableRecord(const font_table_type *pRecordCurr)
{
int iIndexCurr;
if (pRecordCurr == NULL) {
/* No current record, so start with the first */
return &pFontTable[0];
}
iIndexCurr = pRecordCurr - pFontTable;
if (iIndexCurr + 1 < (int)tFontTableRecords) {
/* There is a next record */
return &pFontTable[iIndexCurr + 1];
}
return NULL;
} /* end of pGetNextFontTableRecord */
/*
* tGetFontTableLength
*
* returns the number of records in the font table
*/
size_t
tGetFontTableLength(void)
{
return tFontTableRecords;
} /* end of tGetFontTableLength */