TB9.2 Example Applications: examples/PIPS/antiword/src/fmt

00001 /*
+00002  * fmt_text.c
+00003  * Copyright (C) 2004 A.J. van Os; Released under GNU GPL
+00004  *
+00005  * Description:
+00006  * Functions to deal with the Formatted Text format
+00007  *
+00008  * Based on patches send by: Ofir Reichenberg <ofir@qlusters.com>
+00009  *
+00010  * The credit should go to him, but all the bugs are mine.
+00011  */
+00012 
+00013 #include <string.h>
+00014 #include "antiword.h"
+00015 
+00016 /* The character set */
+00017 static encoding_type    eEncoding = encoding_neutral;
+00018 /* Current vertical position information */
+00019 static long             lYtopCurr = 0;
+00020 /* Local representation of the non-breaking space */
+00021 static UCHAR            ucNbsp = 0;
+00022 
+00023 
+00024 /*
+00025  * vPrologueFMT - set options and perform the Formatted Text initialization
+00026  */
+00027 void
+00028 vPrologueFMT(diagram_type *pDiag, const options_type *pOptions)
+00029 {
+00030         fail(pDiag == NULL);
+00031         fail(pOptions == NULL);
+00032 
+00033         eEncoding = pOptions->eEncoding;
+00034         pDiag->lXleft = 0;
+00035         pDiag->lYtop = 0;
+00036         lYtopCurr = 0;
+00037 } /* end of vPrologueFMT */
+00038 
+00039 /*
+00040  * vPrintFMT - print a Formatted Text string
+00041  */
+00042 static void
+00043 vPrintFMT(FILE *pFile,
+00044         const char *szString, size_t tStringLength, USHORT usFontstyle)
+00045 {
+00046         const UCHAR     *pucByte, *pucStart, *pucLast, *pucNonSpace;
+00047 
+00048         fail(szString == NULL);
+00049 
+00050         if (szString == NULL || szString[0] == '\0' || tStringLength == 0) {
+00051                 return;
+00052         }
+00053 
+00054         if (eEncoding == encoding_utf_8) {
+00055                 fprintf(pFile, "%.*s", (int)tStringLength, szString);
+00056                 return;
+00057         }
+00058 
+00059         if (ucNbsp == 0) {
+00060                 ucNbsp = ucGetNbspCharacter();
+00061                 DBG_HEX_C(ucNbsp != 0xa0, ucNbsp);
+00062         }
+00063 
+00064         pucStart = (UCHAR *)szString;
+00065         pucLast = pucStart + tStringLength - 1;
+00066         pucNonSpace = pucLast;
+00067         while ((*pucNonSpace == (UCHAR)' ' || *pucNonSpace == ucNbsp) &&
+00068                pucNonSpace > pucStart) {
+00069                 pucNonSpace--;
+00070         }
+00071 
+00072         /* 1: The spaces at the start */
+00073         pucByte = pucStart;
+00074         while ((*pucByte == (UCHAR)' ' || *pucByte == ucNbsp) &&
+00075                pucByte <= pucLast) {
+00076                 (void)putc(' ', pFile);
+00077                 pucByte++;
+00078         }
+00079 
+00080         if (pucByte > pucLast) {
+00081                 /* There is no text, just spaces */
+00082                 return;
+00083         }
+00084 
+00085         /* 2: Start the *bold*, /italic/ and _underline_ */
+00086         if (bIsBold(usFontstyle)) {
+00087                 (void)putc('*', pFile);
+00088         }
+00089         if (bIsItalic(usFontstyle)) {
+00090                 (void)putc('/', pFile);
+00091         }
+00092         if (bIsUnderline(usFontstyle)) {
+00093                 (void)putc('_', pFile);
+00094         }
+00095 
+00096         /* 3: The text itself */
+00097         while (pucByte <= pucNonSpace) {
+00098                 if (*pucByte == ucNbsp) {
+00099                         (void)putc(' ', pFile);
+00100                 } else {
+00101                         (void)putc((char)*pucByte, pFile);
+00102                 }
+00103                 pucByte++;
+00104         }
+00105 
+00106         /* 4: End the *bold*, /italic/ and _underline_ */
+00107         if (bIsUnderline(usFontstyle)) {
+00108                 (void)putc('_', pFile);
+00109         }
+00110         if (bIsItalic(usFontstyle)) {
+00111                 (void)putc('/', pFile);
+00112         }
+00113         if (bIsBold(usFontstyle)) {
+00114                 (void)putc('*', pFile);
+00115         }
+00116 
+00117         /* 5: The spaces at the end */
+00118         while (pucByte <= pucLast) {
+00119                 (void)putc(' ', pFile);
+00120                 pucByte++;
+00121         }
+00122 } /* end of vPrintFMT */
+00123 
+00124 /*
+00125  * vMoveTo - move to the given X,Y coordinates
+00126  *
+00127  * Move the current position of the given diagram to its X,Y coordinates,
+00128  * start on a new page if needed
+00129  */
+00130 static void
+00131 vMoveTo(diagram_type *pDiag)
+00132 {
+00133         int     iCount, iNbr;
+00134 
+00135         fail(pDiag == NULL);
+00136         fail(pDiag->pOutFile == NULL);
+00137 
+00138         if (pDiag->lYtop != lYtopCurr) {
+00139                 iNbr = iDrawUnits2Char(pDiag->lXleft);
+00140                 for (iCount = 0; iCount < iNbr; iCount++) {
+00141                         (void)putc(FILLER_CHAR, pDiag->pOutFile);
+00142                 }
+00143                 lYtopCurr = pDiag->lYtop;
+00144         }
+00145 } /* end of vMoveTo */
+00146 
+00147 /*
+00148  * vSubstringFMT - print a sub string
+00149  */
+00150 void
+00151 vSubstringFMT(diagram_type *pDiag,
+00152         const char *szString, size_t tStringLength, long lStringWidth,
+00153         USHORT usFontstyle)
+00154 {
+00155         fail(pDiag == NULL || szString == NULL);
+00156         fail(pDiag->pOutFile == NULL);
+00157         fail(pDiag->lXleft < 0);
+00158         fail(tStringLength != strlen(szString));
+00159 
+00160         if (szString[0] == '\0' || tStringLength == 0) {
+00161                 return;
+00162         }
+00163 
+00164         vMoveTo(pDiag);
+00165         vPrintFMT(pDiag->pOutFile, szString, tStringLength, usFontstyle);
+00166         pDiag->lXleft += lStringWidth;
+00167 } /* end of vSubstringFMT */
+
examples/PIPS/antiword/src/fmt_text.c
