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/*
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 * fmt_text.c
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 * Copyright (C) 2004 A.J. van Os; Released under GNU GPL
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 *
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 * Description:
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 * Functions to deal with the Formatted Text format
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 *
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 * Based on patches send by: Ofir Reichenberg <ofir@qlusters.com>
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 *
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 * The credit should go to him, but all the bugs are mine.
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 */
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#include <string.h>
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#include "antiword.h"
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/* The character set */
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static encoding_type	eEncoding = encoding_neutral;
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/* Current vertical position information */
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static long		lYtopCurr = 0;
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/* Local representation of the non-breaking space */
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static UCHAR		ucNbsp = 0;
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/*
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 * vPrologueFMT - set options and perform the Formatted Text initialization
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 */
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void
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vPrologueFMT(diagram_type *pDiag, const options_type *pOptions)
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{
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	fail(pDiag == NULL);
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	fail(pOptions == NULL);
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	eEncoding = pOptions->eEncoding;
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	pDiag->lXleft = 0;
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	pDiag->lYtop = 0;
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	lYtopCurr = 0;
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} /* end of vPrologueFMT */
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/*
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 * vPrintFMT - print a Formatted Text string
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 */
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static void
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vPrintFMT(FILE *pFile,
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	const char *szString, size_t tStringLength, USHORT usFontstyle)
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{
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	const UCHAR	*pucByte, *pucStart, *pucLast, *pucNonSpace;
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	fail(szString == NULL);
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	if (szString == NULL || szString[0] == '\0' || tStringLength == 0) {
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		return;
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	}
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	if (eEncoding == encoding_utf_8) {
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		fprintf(pFile, "%.*s", (int)tStringLength, szString);
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		return;
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	}
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	if (ucNbsp == 0) {
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		ucNbsp = ucGetNbspCharacter();
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		DBG_HEX_C(ucNbsp != 0xa0, ucNbsp);
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	}
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	pucStart = (UCHAR *)szString;
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	pucLast = pucStart + tStringLength - 1;
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	pucNonSpace = pucLast;
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	while ((*pucNonSpace == (UCHAR)' ' || *pucNonSpace == ucNbsp) &&
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	       pucNonSpace > pucStart) {
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		pucNonSpace--;
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	}
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	/* 1: The spaces at the start */
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	pucByte = pucStart;
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	while ((*pucByte == (UCHAR)' ' || *pucByte == ucNbsp) &&
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	       pucByte <= pucLast) {
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		(void)putc(' ', pFile);
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		pucByte++;
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	}
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	if (pucByte > pucLast) {
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		/* There is no text, just spaces */
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		return;
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	}
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	/* 2: Start the *bold*, /italic/ and _underline_ */
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	if (bIsBold(usFontstyle)) {
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		(void)putc('*', pFile);
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	}
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	if (bIsItalic(usFontstyle)) {
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		(void)putc('/', pFile);
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	}
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	if (bIsUnderline(usFontstyle)) {
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		(void)putc('_', pFile);
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	}
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	/* 3: The text itself */
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	while (pucByte <= pucNonSpace) {
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		if (*pucByte == ucNbsp) {
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			(void)putc(' ', pFile);
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		} else {
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			(void)putc((char)*pucByte, pFile);
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		}
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		pucByte++;
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	}
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	/* 4: End the *bold*, /italic/ and _underline_ */
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	if (bIsUnderline(usFontstyle)) {
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		(void)putc('_', pFile);
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	}
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	if (bIsItalic(usFontstyle)) {
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		(void)putc('/', pFile);
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	}
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	if (bIsBold(usFontstyle)) {
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		(void)putc('*', pFile);
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	}
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	/* 5: The spaces at the end */
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	while (pucByte <= pucLast) {
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		(void)putc(' ', pFile);
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		pucByte++;
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	}
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} /* end of vPrintFMT */
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/*
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 * vMoveTo - move to the given X,Y coordinates
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 *
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 * Move the current position of the given diagram to its X,Y coordinates,
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 * start on a new page if needed
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 */
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static void
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vMoveTo(diagram_type *pDiag)
132 
{
133 
	int	iCount, iNbr;
134 
 
135 
	fail(pDiag == NULL);
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	fail(pDiag->pOutFile == NULL);
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138 
	if (pDiag->lYtop != lYtopCurr) {
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		iNbr = iDrawUnits2Char(pDiag->lXleft);
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		for (iCount = 0; iCount < iNbr; iCount++) {
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			(void)putc(FILLER_CHAR, pDiag->pOutFile);
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		}
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		lYtopCurr = pDiag->lYtop;
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	}
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} /* end of vMoveTo */
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/*
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 * vSubstringFMT - print a sub string
149 
 */
150 
void
151 
vSubstringFMT(diagram_type *pDiag,
152 
	const char *szString, size_t tStringLength, long lStringWidth,
153 
	USHORT usFontstyle)
154 
{
155 
	fail(pDiag == NULL || szString == NULL);
156 
	fail(pDiag->pOutFile == NULL);
157 
	fail(pDiag->lXleft < 0);
158 
	fail(tStringLength != strlen(szString));
159 
 
160 
	if (szString[0] == '\0' || tStringLength == 0) {
161 
		return;
162 
	}
163 
 
164 
	vMoveTo(pDiag);
165 
	vPrintFMT(pDiag->pOutFile, szString, tStringLength, usFontstyle);
166 
	pDiag->lXleft += lStringWidth;
167 
} /* end of vSubstringFMT */