utils/tex2rtf/src/tex2any.cpp

/////////////////////////////////////////////////////////////////////////////
// Name:        tex2any.cpp
// Purpose:     Utilities for Latex conversion.
// Author:      Julian Smart
// Modified by:
// Created:     01/01/99
// RCS-ID:      $Id$
// Copyright:   (c) Julian Smart
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

#ifdef __GNUG__
#pragma implementation
#endif

// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"

#ifdef __BORLANDC__
#pragma hdrstop
#endif

#ifndef WX_PRECOMP
#include "wx/wx.h"
#endif

#include <ctype.h>
#include "tex2any.h"
#include <stdlib.h>
#include <time.h>

/*
 * Variables accessible from clients
 *
 */

TexChunk *      DocumentTitle = NULL;
TexChunk *      DocumentAuthor = NULL;
TexChunk *      DocumentDate = NULL;

// Header/footers/pagestyle
TexChunk *      LeftHeaderEven = NULL;
TexChunk *      LeftFooterEven = NULL;
TexChunk *      CentreHeaderEven = NULL;
TexChunk *      CentreFooterEven = NULL;
TexChunk *      RightHeaderEven = NULL;
TexChunk *      RightFooterEven = NULL;
TexChunk *      LeftHeaderOdd = NULL;
TexChunk *      LeftFooterOdd = NULL;
TexChunk *      CentreHeaderOdd = NULL;
TexChunk *      CentreFooterOdd = NULL;
TexChunk *      RightHeaderOdd = NULL;
TexChunk *      RightFooterOdd = NULL;
char *          PageStyle = copystring("plain");

int             DocumentStyle = LATEX_REPORT;
int             MinorDocumentStyle = 0;
wxPathList      TexPathList;
char *          BibliographyStyleString = copystring("plain");
char *          DocumentStyleString = copystring("report");
char *          MinorDocumentStyleString = NULL;
int             ParSkip = 0;
int             ParIndent = 0;

int             normalFont = 10;
int             smallFont = 8;
int             tinyFont = 6;
int             largeFont1 = 12;
int             LargeFont2 = 14;
int             LARGEFont3 = 18;
int             hugeFont1 = 20;
int             HugeFont2 = 24;
int             HUGEFont3 = 28;

/*
 * USER-ADJUSTABLE SETTINGS
 *
 */

// Section font sizes
int             chapterFont =    12; // LARGEFont3;
int             sectionFont =    12; // LargeFont2;
int             subsectionFont = 12; // largeFont1;
int             titleFont = LARGEFont3;
int             authorFont = LargeFont2;
int             mirrorMargins = TRUE;
bool            winHelp = FALSE;  // Output in Windows Help format if TRUE, linear otherwise
bool            isInteractive = FALSE;
bool            runTwice = FALSE;
int             convertMode = TEX_RTF;
bool            headerRule = FALSE;
bool            footerRule = FALSE;
bool            compatibilityMode = FALSE; // If TRUE, maximum Latex compatibility
                                // (Quality of RTF generation deteriorate)
bool            generateHPJ; // Generate WinHelp Help Project file
char            *winHelpTitle = NULL; // Windows Help title
int             defaultTableColumnWidth = 2000;

int             labelIndentTab = 18;  // From left indent to item label (points)
int             itemIndentTab = 40;   // From left indent to item (points)

bool            useUpButton = TRUE;
int             htmlBrowseButtons = HTML_BUTTONS_TEXT;

bool            truncateFilenames = FALSE; // Truncate for DOS
int             winHelpVersion = 3; // WinHelp Version (3 for Windows 3.1, 4 for Win95)
bool            winHelpContents = FALSE; // Generate .cnt file for WinHelp 4
bool            htmlIndex = FALSE; // Generate .htx file for HTML
bool            htmlFrameContents = FALSE; // Use frames for HTML contents page
bool            useHeadingStyles = TRUE; // Insert \s1, s2 etc.
bool            useWord = TRUE; // Insert proper Word table of contents, etc etc
int             contentsDepth = 4; // Depth of Word table of contents
bool            indexSubsections = TRUE; // Index subsections in linear RTF
// Linear RTF method of including bitmaps. Can be "includepicture", "hex"
char            *bitmapMethod = copystring("includepicture");
bool            upperCaseNames = FALSE;
// HTML background and text colours
char            *backgroundImageString = NULL;
char            *backgroundColourString = copystring("255;255;255");
char            *textColourString = NULL;
char            *linkColourString = NULL;
char            *followedLinkColourString = NULL;
bool            combineSubSections = FALSE;
bool            htmlWorkshopFiles = FALSE;

/*
 * International support
 */

// Names to help with internationalisation
char *ContentsNameString = copystring("Contents");
char *AbstractNameString = copystring("Abstract");
char *GlossaryNameString = copystring("Glossary");
char *ReferencesNameString = copystring("References");
char *FiguresNameString = copystring("List of Figures");
char *TablesNameString = copystring("List of Tables");
char *FigureNameString = copystring("Figure");
char *TableNameString = copystring("Table");
char *IndexNameString = copystring("Index");
char *ChapterNameString = copystring("chapter");
char *SectionNameString = copystring("section");
char *SubsectionNameString = copystring("subsection");
char *SubsubsectionNameString = copystring("subsubsection");
char *UpNameString = copystring("Up");

/*
 * Section numbering
 *
 */

int             chapterNo = 0;
int             sectionNo = 0;
int             subsectionNo = 0;
int             subsubsectionNo = 0;
int             figureNo = 0;
int             tableNo = 0;

/*
 * Other variables
 *
 */

FILE *CurrentOutput1 = NULL;
FILE *CurrentOutput2 = NULL;
FILE *Inputs[15];
int LineNumbers[15];
char *FileNames[15];
int CurrentInputIndex = 0;

char *TexFileRoot = NULL;
char *TexBibName = NULL;         // Bibliography output file name
char *TexTmpBibName = NULL;      // Temporary bibliography output file name
bool isSync = FALSE;             // If TRUE, should not yield to other processes.
bool stopRunning = FALSE;        // If TRUE, should abort.

static int currentColumn = 0;
char *currentArgData = NULL;
bool haveArgData = FALSE; // If TRUE, we're simulating the data.
TexChunk *currentArgument = NULL;
TexChunk *nextChunk = NULL;
bool isArgOptional = FALSE;
int noArgs = 0;

TexChunk *TopLevel = NULL;
// wxList MacroDefs(wxKEY_STRING);
wxHashTable MacroDefs(wxKEY_STRING);
wxStringList IgnorableInputFiles; // Ignorable \input files, e.g. psbox.tex
char *BigBuffer = NULL;  // For reading in large chunks of text
TexMacroDef *SoloBlockDef = NULL;
TexMacroDef *VerbatimMacroDef = NULL;

#define IncrementLineNumber() LineNumbers[CurrentInputIndex] ++

void TexOutput(char *s, bool ordinaryText)
{
  int len = strlen(s);

  // Update current column, but only if we're guaranteed to
  // be ordinary text (not mark-up stuff)
  int i;
  if (ordinaryText)
    for (i = 0; i < len; i++)
    {
      if (s[i] == 13 || s[i] == 10)
        currentColumn = 0;
      else
        currentColumn ++;
    }

  if (CurrentOutput1)
    fprintf(CurrentOutput1, "%s", s);
  if (CurrentOutput2)
    fprintf(CurrentOutput2, "%s", s);
}

/*
 * Try to find a Latex macro, in one of the following forms:
 * (1) \begin{} ... \end{}
 * (2) \macroname{arg1}...{argn}
 * (3) {\bf arg1}
 */

void ForbidWarning(TexMacroDef *def)
{
  char buf[100];
  switch (def->forbidden)
  {
    case FORBID_WARN:
    {
      sprintf(buf, "Warning: it is recommended that command %s is not used.", def->name);
      OnInform(buf);
      break;
    }
    case FORBID_ABSOLUTELY:
    {
      sprintf(buf, "Error: command %s cannot be used and will lead to errors.", def->name);
      OnInform(buf);
      break;
    }
    default:
      break;
  }
}

TexMacroDef *MatchMacro(char *buffer, int *pos, char **env, bool *parseToBrace)
{
  *parseToBrace = TRUE;
  int i = (*pos);
  TexMacroDef *def = NULL;
  char macroBuf[40];

  // First, try to find begin{thing}
  if (strncmp(buffer+i, "begin{", 6) == 0)
  {
    i += 6;

    int j = i;
    while ((isalpha(buffer[j]) || buffer[j] == '*') && ((j - i) < 39))
    {
      macroBuf[j-i] = buffer[j];
      j ++;
    }
    macroBuf[j-i] = 0;
    def = (TexMacroDef *)MacroDefs.Get(macroBuf);

    if (def)
    {
      *pos = j + 1;  // BUGBUG Should this be + 1???
      *env = def->name;
      ForbidWarning(def);
      return def;
    }
    else return NULL;
  }

  // Failed, so try to find macro from definition list
  int j = i;

  // First try getting a one-character macro, but ONLY
  // if these TWO characters are not both alphabetical (could
  // be a longer macro)
  if (!(isalpha(buffer[i]) && isalpha(buffer[i+1])))
  {
    macroBuf[0] = buffer[i];
    macroBuf[1] = 0;

    def = (TexMacroDef *)MacroDefs.Get(macroBuf);
    if (def) j ++;
  }

  if (!def)
  {
    while ((isalpha(buffer[j]) || buffer[j] == '*') && ((j - i) < 39))
    {
      macroBuf[j-i] = buffer[j];
      j ++;
    }
    macroBuf[j-i] = 0;
    def = (TexMacroDef *)MacroDefs.Get(macroBuf);
  }

  if (def)
  {
    i = j;

    // We want to check whether this is a space-consuming macro
    // (e.g. {\bf word})
    // No brace, e.g. \input thing.tex instead of \input{thing};
    // or a numeric argument, such as \parindent0pt
    if ((def->no_args > 0) && ((buffer[i] == 32) || (buffer[i] == '=') || (isdigit(buffer[i]))))
    {
      if ((buffer[i] == 32) || (buffer[i] == '='))
        i ++;

      *parseToBrace = FALSE;
    }
    *pos = i;
    ForbidWarning(def);
    return def;
  }
  return NULL;
}

void EatWhiteSpace(char *buffer, int *pos)
{
  int len = strlen(buffer);
  int j = *pos;
  bool keepGoing = TRUE;
  bool moreLines = TRUE;
  while ((j < len) && keepGoing &&
         (buffer[j] == 10 || buffer[j] == 13 || buffer[j] == ' ' || buffer[j] == 9))
  {
    j ++;
    if (j >= len)
    {
      if (moreLines)
      {
        moreLines = read_a_line(buffer);
        len = strlen(buffer);
        j = 0;
      }
      else
        keepGoing = FALSE;
    }
  }
  *pos = j;
}

bool FindEndEnvironment(char *buffer, int *pos, char *env)
{
  int i = (*pos);

  // Try to find end{thing}
  if ((strncmp(buffer+i, "end{", 4) == 0) &&
      (strncmp(buffer+i+4, env, strlen(env)) == 0))
  {
    *pos = i + 5 + strlen(env);
    return TRUE;
  }
  else return FALSE;
}

bool readingVerbatim = FALSE;
bool readInVerbatim = FALSE;  // Within a verbatim, but not nec. verbatiminput

bool read_a_line(char *buf)
{
  if (CurrentInputIndex < 0)
  {
    buf[0] = 0;
    return FALSE;
  }

  int ch = -2;
  int i = 0;
  buf[0] = 0;
  while (ch != EOF && ch != 10)
  {
    if (((i == 14) && (strncmp(buf, "\\end{verbatim}", 14) == 0)) ||
         ((i == 16) && (strncmp(buf, "\\end{toocomplex}", 16) == 0)))
      readInVerbatim = FALSE;

    ch = getc(Inputs[CurrentInputIndex]);
    if (ch != EOF)
    {
      // Check for 2 consecutive newlines and replace with \par
      if (ch == 10 && !readInVerbatim)
      {
        int ch1 = getc(Inputs[CurrentInputIndex]);
        if ((ch1 == 10) || (ch1 == 13))
        {
          // Eliminate newline (10) following DOS linefeed
          if (ch1 == 13) ch1 = getc(Inputs[CurrentInputIndex]);
          buf[i] = 0;
          IncrementLineNumber();
//          strcat(buf, "\\par\n");
//          i += 6;
          strcat(buf, "\\par");
          i += 5;
        }
        else
        {
          ungetc(ch1, Inputs[CurrentInputIndex]);
          buf[i] = ch;
          i ++;
        }
      }
      else
      {

        // Convert embedded characters to RTF equivalents
		switch(ch)
		{
Commit	Line	Data
	1	/////////////////////////////////////////////////////////////////////////////
	2	// Name: tex2any.cpp
	3	// Purpose: Utilities for Latex conversion.
	4	// Author: Julian Smart
	5	// Modified by:
	6	// Created: 01/01/99
	7	// RCS-ID: $Id$
	8	// Copyright: (c) Julian Smart
	9	// Licence: wxWindows licence
	10	/////////////////////////////////////////////////////////////////////////////
	11
	12	#ifdef __GNUG__
	13	#pragma implementation
	14	#endif
	15
	16	// For compilers that support precompilation, includes "wx.h".
	17	#include "wx/wxprec.h"
	18
	19	#ifdef __BORLANDC__
	20	#pragma hdrstop
	21	#endif
	22
	23	#ifndef WX_PRECOMP
	24	#include "wx/wx.h"
	25	#endif
	26
	27	#include <ctype.h>
	28	#include "tex2any.h"
	29	#include <stdlib.h>
	30	#include <time.h>
	31
	32	/*
	33	* Variables accessible from clients
	34	*
	35	*/
	36
	37	TexChunk * DocumentTitle = NULL;
	38	TexChunk * DocumentAuthor = NULL;
	39	TexChunk * DocumentDate = NULL;
	40
	41	// Header/footers/pagestyle
	42	TexChunk * LeftHeaderEven = NULL;
	43	TexChunk * LeftFooterEven = NULL;
	44	TexChunk * CentreHeaderEven = NULL;
	45	TexChunk * CentreFooterEven = NULL;
	46	TexChunk * RightHeaderEven = NULL;
	47	TexChunk * RightFooterEven = NULL;
	48	TexChunk * LeftHeaderOdd = NULL;
	49	TexChunk * LeftFooterOdd = NULL;
	50	TexChunk * CentreHeaderOdd = NULL;
	51	TexChunk * CentreFooterOdd = NULL;
	52	TexChunk * RightHeaderOdd = NULL;
	53	TexChunk * RightFooterOdd = NULL;
	54	char * PageStyle = copystring("plain");
	55
	56	int DocumentStyle = LATEX_REPORT;
	57	int MinorDocumentStyle = 0;
	58	wxPathList TexPathList;
	59	char * BibliographyStyleString = copystring("plain");
	60	char * DocumentStyleString = copystring("report");
	61	char * MinorDocumentStyleString = NULL;
	62	int ParSkip = 0;
	63	int ParIndent = 0;
	64
	65	int normalFont = 10;
	66	int smallFont = 8;
	67	int tinyFont = 6;
	68	int largeFont1 = 12;
	69	int LargeFont2 = 14;
	70	int LARGEFont3 = 18;
	71	int hugeFont1 = 20;
	72	int HugeFont2 = 24;
	73	int HUGEFont3 = 28;
	74
	75	/*
	76	* USER-ADJUSTABLE SETTINGS
	77	*
	78	*/
	79
	80	// Section font sizes
	81	int chapterFont = 12; // LARGEFont3;
	82	int sectionFont = 12; // LargeFont2;
	83	int subsectionFont = 12; // largeFont1;
	84	int titleFont = LARGEFont3;
	85	int authorFont = LargeFont2;
	86	int mirrorMargins = TRUE;
	87	bool winHelp = FALSE; // Output in Windows Help format if TRUE, linear otherwise
	88	bool isInteractive = FALSE;
	89	bool runTwice = FALSE;
	90	int convertMode = TEX_RTF;
	91	bool headerRule = FALSE;
	92	bool footerRule = FALSE;
	93	bool compatibilityMode = FALSE; // If TRUE, maximum Latex compatibility
	94	// (Quality of RTF generation deteriorate)
	95	bool generateHPJ; // Generate WinHelp Help Project file
	96	char *winHelpTitle = NULL; // Windows Help title
	97	int defaultTableColumnWidth = 2000;
	98
	99	int labelIndentTab = 18; // From left indent to item label (points)
	100	int itemIndentTab = 40; // From left indent to item (points)
	101
	102	bool useUpButton = TRUE;
	103	int htmlBrowseButtons = HTML_BUTTONS_TEXT;
	104
	105	bool truncateFilenames = FALSE; // Truncate for DOS
	106	int winHelpVersion = 3; // WinHelp Version (3 for Windows 3.1, 4 for Win95)
	107	bool winHelpContents = FALSE; // Generate .cnt file for WinHelp 4
	108	bool htmlIndex = FALSE; // Generate .htx file for HTML
	109	bool htmlFrameContents = FALSE; // Use frames for HTML contents page
	110	bool useHeadingStyles = TRUE; // Insert \s1, s2 etc.
	111	bool useWord = TRUE; // Insert proper Word table of contents, etc etc
	112	int contentsDepth = 4; // Depth of Word table of contents
	113	bool indexSubsections = TRUE; // Index subsections in linear RTF
	114	// Linear RTF method of including bitmaps. Can be "includepicture", "hex"
	115	char *bitmapMethod = copystring("includepicture");
	116	bool upperCaseNames = FALSE;
	117	// HTML background and text colours
	118	char *backgroundImageString = NULL;
	119	char *backgroundColourString = copystring("255;255;255");
	120	char *textColourString = NULL;
	121	char *linkColourString = NULL;
	122	char *followedLinkColourString = NULL;
	123	bool combineSubSections = FALSE;
	124	bool htmlWorkshopFiles = FALSE;
	125
	126	/*
	127	* International support
	128	*/
	129
	130	// Names to help with internationalisation
	131	char *ContentsNameString = copystring("Contents");
	132	char *AbstractNameString = copystring("Abstract");
	133	char *GlossaryNameString = copystring("Glossary");
	134	char *ReferencesNameString = copystring("References");
	135	char *FiguresNameString = copystring("List of Figures");
	136	char *TablesNameString = copystring("List of Tables");
	137	char *FigureNameString = copystring("Figure");
	138	char *TableNameString = copystring("Table");
	139	char *IndexNameString = copystring("Index");
	140	char *ChapterNameString = copystring("chapter");
	141	char *SectionNameString = copystring("section");
	142	char *SubsectionNameString = copystring("subsection");
	143	char *SubsubsectionNameString = copystring("subsubsection");
	144	char *UpNameString = copystring("Up");
	145
	146	/*
	147	* Section numbering
	148	*
	149	*/
	150
	151	int chapterNo = 0;
	152	int sectionNo = 0;
	153	int subsectionNo = 0;
	154	int subsubsectionNo = 0;
	155	int figureNo = 0;
	156	int tableNo = 0;
	157
	158	/*
	159	* Other variables
	160	*
	161	*/
	162
	163	FILE *CurrentOutput1 = NULL;
	164	FILE *CurrentOutput2 = NULL;
	165	FILE *Inputs[15];
	166	int LineNumbers[15];
	167	char *FileNames[15];
	168	int CurrentInputIndex = 0;
	169
	170	char *TexFileRoot = NULL;
	171	char *TexBibName = NULL; // Bibliography output file name
	172	char *TexTmpBibName = NULL; // Temporary bibliography output file name
	173	bool isSync = FALSE; // If TRUE, should not yield to other processes.
	174	bool stopRunning = FALSE; // If TRUE, should abort.
	175
	176	static int currentColumn = 0;
	177	char *currentArgData = NULL;
	178	bool haveArgData = FALSE; // If TRUE, we're simulating the data.
	179	TexChunk *currentArgument = NULL;
	180	TexChunk *nextChunk = NULL;
	181	bool isArgOptional = FALSE;
	182	int noArgs = 0;
	183
	184	TexChunk *TopLevel = NULL;
	185	// wxList MacroDefs(wxKEY_STRING);
	186	wxHashTable MacroDefs(wxKEY_STRING);
	187	wxStringList IgnorableInputFiles; // Ignorable \input files, e.g. psbox.tex
	188	char *BigBuffer = NULL; // For reading in large chunks of text
	189	TexMacroDef *SoloBlockDef = NULL;
	190	TexMacroDef *VerbatimMacroDef = NULL;
	191
	192	#define IncrementLineNumber() LineNumbers[CurrentInputIndex] ++
	193
	194	void TexOutput(char *s, bool ordinaryText)
	195	{
	196	int len = strlen(s);
	197
	198	// Update current column, but only if we're guaranteed to
	199	// be ordinary text (not mark-up stuff)
	200	int i;
	201	if (ordinaryText)
	202	for (i = 0; i < len; i++)
	203	{
	204	if (s[i] == 13 \|\| s[i] == 10)
	205	currentColumn = 0;
	206	else
	207	currentColumn ++;
	208	}
	209
	210	if (CurrentOutput1)
	211	fprintf(CurrentOutput1, "%s", s);
	212	if (CurrentOutput2)
	213	fprintf(CurrentOutput2, "%s", s);
	214	}
	215
	216	/*
	217	* Try to find a Latex macro, in one of the following forms:
	218	* (1) \begin{} ... \end{}
	219	* (2) \macroname{arg1}...{argn}
	220	* (3) {\bf arg1}
	221	*/
	222
	223	void ForbidWarning(TexMacroDef *def)
	224	{
	225	char buf[100];
	226	switch (def->forbidden)
	227	{
	228	case FORBID_WARN:
	229	{
	230	sprintf(buf, "Warning: it is recommended that command %s is not used.", def->name);
	231	OnInform(buf);
	232	break;
	233	}
	234	case FORBID_ABSOLUTELY:
	235	{
	236	sprintf(buf, "Error: command %s cannot be used and will lead to errors.", def->name);
	237	OnInform(buf);
	238	break;
	239	}
	240	default:
	241	break;
	242	}
	243	}
	244
	245	TexMacroDef MatchMacro(char buffer, int pos, char env, bool parseToBrace)
	246	{
	247	*parseToBrace = TRUE;
	248	int i = (*pos);
	249	TexMacroDef *def = NULL;
	250	char macroBuf[40];
	251
	252	// First, try to find begin{thing}
	253	if (strncmp(buffer+i, "begin{", 6) == 0)
	254	{
	255	i += 6;
	256
	257	int j = i;
	258	while ((isalpha(buffer[j]) \|\| buffer[j] == '*') && ((j - i) < 39))
	259	{
	260	macroBuf[j-i] = buffer[j];
	261	j ++;
	262	}
	263	macroBuf[j-i] = 0;
	264	def = (TexMacroDef *)MacroDefs.Get(macroBuf);
	265
	266	if (def)
	267	{
	268	*pos = j + 1; // BUGBUG Should this be + 1???
	269	*env = def->name;
	270	ForbidWarning(def);
	271	return def;
	272	}
	273	else return NULL;
	274	}
	275
	276	// Failed, so try to find macro from definition list
	277	int j = i;
	278
	279	// First try getting a one-character macro, but ONLY
	280	// if these TWO characters are not both alphabetical (could
	281	// be a longer macro)
	282	if (!(isalpha(buffer[i]) && isalpha(buffer[i+1])))
	283	{
	284	macroBuf[0] = buffer[i];
	285	macroBuf[1] = 0;
	286
	287	def = (TexMacroDef *)MacroDefs.Get(macroBuf);
	288	if (def) j ++;
	289	}
	290
	291	if (!def)
	292	{
	293	while ((isalpha(buffer[j]) \|\| buffer[j] == '*') && ((j - i) < 39))
	294	{
	295	macroBuf[j-i] = buffer[j];
	296	j ++;
	297	}
	298	macroBuf[j-i] = 0;
	299	def = (TexMacroDef *)MacroDefs.Get(macroBuf);
	300	}
	301
	302	if (def)
	303	{
	304	i = j;
	305
	306	// We want to check whether this is a space-consuming macro
	307	// (e.g. {\bf word})
	308	// No brace, e.g. \input thing.tex instead of \input{thing};
	309	// or a numeric argument, such as \parindent0pt
	310	if ((def->no_args > 0) && ((buffer[i] == 32) \|\| (buffer[i] == '=') \|\| (isdigit(buffer[i]))))
	311	{
	312	if ((buffer[i] == 32) \|\| (buffer[i] == '='))
	313	i ++;
	314
	315	*parseToBrace = FALSE;
	316	}
	317	*pos = i;
	318	ForbidWarning(def);
	319	return def;
	320	}
	321	return NULL;
	322	}
	323
	324	void EatWhiteSpace(char buffer, int pos)
	325	{
	326	int len = strlen(buffer);
	327	int j = *pos;
	328	bool keepGoing = TRUE;
	329	bool moreLines = TRUE;
	330	while ((j < len) && keepGoing &&
	331	(buffer[j] == 10 \|\| buffer[j] == 13 \|\| buffer[j] == ' ' \|\| buffer[j] == 9))
	332	{
	333	j ++;
	334	if (j >= len)
	335	{
	336	if (moreLines)
	337	{
	338	moreLines = read_a_line(buffer);
	339	len = strlen(buffer);
	340	j = 0;
	341	}
	342	else
	343	keepGoing = FALSE;
	344	}
	345	}
	346	*pos = j;
	347	}
	348
	349	bool FindEndEnvironment(char buffer, int pos, char *env)
	350	{
	351	int i = (*pos);
	352
	353	// Try to find end{thing}
	354	if ((strncmp(buffer+i, "end{", 4) == 0) &&
	355	(strncmp(buffer+i+4, env, strlen(env)) == 0))
	356	{
	357	*pos = i + 5 + strlen(env);
	358	return TRUE;
	359	}
	360	else return FALSE;
	361	}
	362
	363	bool readingVerbatim = FALSE;
	364	bool readInVerbatim = FALSE; // Within a verbatim, but not nec. verbatiminput
	365
	366	bool read_a_line(char *buf)
	367	{
	368	if (CurrentInputIndex < 0)
	369	{
	370	buf[0] = 0;
	371	return FALSE;
	372	}
	373
	374	int ch = -2;
	375	int i = 0;
	376	buf[0] = 0;
	377	while (ch != EOF && ch != 10)
	378	{
	379	if (((i == 14) && (strncmp(buf, "\\end{verbatim}", 14) == 0)) \|\|
	380	((i == 16) && (strncmp(buf, "\\end{toocomplex}", 16) == 0)))
	381	readInVerbatim = FALSE;
	382
	383	ch = getc(Inputs[CurrentInputIndex]);
	384	if (ch != EOF)
	385	{
	386	// Check for 2 consecutive newlines and replace with \par
	387	if (ch == 10 && !readInVerbatim)
	388	{
	389	int ch1 = getc(Inputs[CurrentInputIndex]);
	390	if ((ch1 == 10) \|\| (ch1 == 13))
	391	{
	392	// Eliminate newline (10) following DOS linefeed
	393	if (ch1 == 13) ch1 = getc(Inputs[CurrentInputIndex]);
	394	buf[i] = 0;
	395	IncrementLineNumber();
	396	// strcat(buf, "\\par\n");
	397	// i += 6;
	398	strcat(buf, "\\par");
	399	i += 5;
	400	}
	401	else
	402	{
	403	ungetc(ch1, Inputs[CurrentInputIndex]);
	404	buf[i] = ch;
	405	i ++;
	406	}
	407	}
	408	else
	409	{
	410
	411	// Convert embedded characters to RTF equivalents
	412	switch(ch)
	413	{
	414