#include "qcc.h"
#include "gui.h"

#ifndef _WIN32
#include <unistd.h>
#endif

#if defined(_WIN32) || defined(__DJGPP__)
#include <malloc.h>
#else
#include <alloca.h>
#endif

//common gui things

pbool fl_nondfltopts;
pbool fl_hexen2;
pbool fl_ftetarg;
pbool fl_compileonstart;
pbool fl_showall;
pbool fl_log;
pbool fl_extramargins;
int fl_tabsize;

char parameters[16384];
char progssrcname[256];
char progssrcdir[256];
char enginebinary[MAX_OSPATH];
char enginebasedir[MAX_OSPATH];
char enginecommandline[8192];

pbool qcc_vfiles_changed;
vfile_t *qcc_vfiles;

//for finding symbol keywords
extern QCC_def_t *sourcefilesdefs[];
extern int sourcefilesnumdefs;

int Grep(const char *filename, const char *string)
{
	int foundcount = 0;
	char *last, *found, *linestart;
	int line = 1;
	size_t sz;
	char *raw, *buf;
	pbool dofree;
	int origfmt;
	if (!filename)
		return foundcount;

	raw = GUIReadFile(filename, NULL, NULL, &sz, false);
	if (!raw)
		return foundcount;
	if (raw[sz] != 0)
		return foundcount;	//error....

	buf = QCC_SanitizeCharSet(raw, &sz, &dofree, &origfmt);

	linestart = last = found = buf;
	while ((found = QC_strcasestr(found, string)))
	{
		while (last < found)
		{
			if (*last++ == '\n')
			{
				line++;
				linestart = last;
			}
		}

		while (*found && *found != '\n')
			found++;
		if (*found)
			*found++ = '\0';

		GUIprintf("%s:%i: %s\n", filename, line, linestart);
		line++;
		linestart = found;
		foundcount++;
	}
	if (dofree)
		free(buf);
	free(raw);

	return foundcount;
}
void GoToDefinition(const char *name)
{
	#define MAXSOURCEFILESLIST 8
	extern QCC_def_t *sourcefilesdefs[MAXSOURCEFILESLIST];
	extern int sourcefilesnumdefs;
	int fno;

	QCC_def_t *def, *guess;
	QCC_function_t *fnc;

	const char *strip;	//trim whitespace (for convieniance).
	while (*name <= ' ' && *name)
		name++;
	for (strip = name + strlen(name)-1; strip > name; strip--)
	{
		if (*strip <= ' ')
			continue;
		else	//got some part of a word
			break;
	}
	if (*strip <= ' ')
	{
		char *t = alloca(strip-name+1);
		memcpy(t, name, strip-t);
		t[strip-t] = 0;
		name = t;
	}

	if (!globalstable.numbuckets)
	{
		GUI_DialogPrint("Not found", "You need to compile first.");
		return;
	}


	def = QCC_PR_GetDef(NULL, name, NULL, false, 0, false);

	//no exact match, see if we can get a case-insensitive match
	if (!def && *name)
	{
		for (fno = 0; fno < sourcefilesnumdefs; fno++)
		{
			for (def = sourcefilesdefs[fno]; def; def = def->next)
			{
				if (def->scope)
					continue;	//ignore locals, because we don't know where we are, and they're probably irrelevent.
				if (!QC_strcasecmp(def->name, name))
				{
					fno = sourcefilesnumdefs;
					break;
				}
			}
		}
	}

	//no exact match, see if we can get a partial
	if (!def && *name)
	{
		int prefixlen = strlen(name);
		for (fno = 0; fno < sourcefilesnumdefs; fno++)
		{
			for (guess = sourcefilesdefs[fno]; guess; guess = guess->next)
			{
				if (guess->scope)
					continue;	//ignore locals, because we don't know where we are, and they're probably irrelevent.

				//make sure it has the right prefix
				if (!QC_strncasecmp(guess->name, name, prefixlen))
				{
					if (guess->type->type == ev_function && guess->constant && !guess->arraysize)
					{	//if we found a function, use that one above all others.
						def = guess;
						fno = sourcefilesnumdefs;
						break;
					}
					else if (!def)
						def = guess;
				}
			}
		}
	}

	if (def)
	{
		//with functions, the def is the prototype.
		//we want the body, so zoom to the first statement of the function instead
		if (def->type->type == ev_function && def->constant && !def->arraysize)
		{
			int fnum = def->symboldata[0].function;
			if (fnum > 0 && fnum < numfunctions)
			{
				fnc = &functions[fnum];
				if (fnc->code>=0 && fnc->filen)
				{
					EditFile(fnc->filen, fnc->line, false);
					return;
				}
			}
		}
		if (!def->filen)
		{
			char msgbuffer[2048];
			QC_snprintfz(msgbuffer, sizeof(msgbuffer), "Global definition of \"%s\" was not specified.", name);		
			GUI_DialogPrint("Not found", msgbuffer);
		}
		else
			EditFile(def->filen, def->s_line-1, false);
	}
	else
	{
		char msgbuffer[2048];
		QC_snprintfz(msgbuffer, sizeof(msgbuffer), "Global instance of \"%s\" was not found.", name); 
		GUI_DialogPrint("Not found", msgbuffer);
	}
}

pbool GenAutoCompleteList(char *prefix, char *buffer, int buffersize)
{
	QCC_def_t *def;
	int prefixlen = strlen(prefix);
	int usedbuffer = 0;
	int l;
	int fno;
	for (fno = 0; fno < sourcefilesnumdefs; fno++)
	{
		for (def = sourcefilesdefs[fno]; def; def = def->next)
		{
			if (def->scope)
				continue;	//ignore locals, because we don't know where we are, and they're probably irrelevent.

			//make sure it has the right prefix
			if (!strncmp(def->name, prefix, prefixlen))
			//but ignore it if its one of those special things that you're not meant to know about.
			if (strcmp(def->name, "IMMEDIATE") && !strchr(def->name, ':') && !strchr(def->name, '.') && !strchr(def->name, '*') && !strchr(def->name, '['))
			{
				l = strlen(def->name);
				if (l && usedbuffer+2+l < buffersize)
				{
					if (usedbuffer)
						buffer[usedbuffer++] = ' ';
					memcpy(buffer+usedbuffer, def->name, l);
					usedbuffer += l;
				}
			}
		}
	}
	buffer[usedbuffer] = 0;
	return usedbuffer>0;
}

static pbool GUI_NeedsQuotes(const char *str)
{
	//true if an empty string.
	if (!*str)
		return true;
	for(; *str; str++)
	{	//true if any char is not alpha-numeric
		if (*str >= 'a' && *str <= 'z')
			;
		else if (*str >= 'A' && *str <= 'Z')
			;
		else if (*str >= '0' && *str <= '9')
			;
		else if (*str == '_')
			;
		else
			return true;
	}
	return false;
}

static void GUI_WriteConfigLine(FILE *file, char *part1, char *part2, char *part3, char *desc)
{
	int align = 0;
	if (part1)
	{
		if (GUI_NeedsQuotes(part1))
			align += fprintf(file, "\"%s\" ", part1);
		else
			align += fprintf(file, "%s ", part1);
		for (; align < 14; align++)
			fputc(' ', file);
	}
	if (part2)
	{
		if (GUI_NeedsQuotes(part2))
			align += fprintf(file, "\"%s\" ", part2);
		else
			align += fprintf(file, "%s ", part2);
		for (; align < 28; align++)
			fputc(' ', file);
	}
	if (part3)
	{
		if (GUI_NeedsQuotes(part3))
			align += fprintf(file, "\"%s\" ", part3);
		else
			align += fprintf(file, "%s ", part3);
		for (; align < 40; align++)
			fputc(' ', file);
	}

	if (desc)
	{
		if (align > 40)
		{
			fputc('\n', file);
			align = 0;
		}
		for (; align < 40; align++)
			fputc(' ', file);
		fputs("# ", file);
		align -= 40;
		if (align < 0)
			align = 0;
		while(*desc)
		{
			if (*desc == '\n' || (*desc == ' ' && align > 60))
			{
				fputs("\n", file);
				for (align = 0; align < 40; align++)
					fputc(' ', file);
				fputs("# ", file);
				align = 0;
			}
			else
			{
				fputc(*desc, file);
				align++;
			}
			desc++;
		}
	}
	fputs("\n", file);
}
static void GUI_WriteConfigInt(FILE *file, char *part1, int part2, char *desc)
{
	char buf[64];
	QC_snprintfz(buf, sizeof(buf), "%i", part2);
	GUI_WriteConfigLine(file, part1, buf, NULL, desc);
}
void GUI_SaveConfig(void)
{
	FILE *file = fopen("fteqcc.ini", "wt");
	int p;
	if (!file)
		return;
	for (p = 0; optimisations[p].enabled; p++)
	{
		if ((!(optimisations[p].flags&FLAG_SETINGUI)) == (!(optimisations[p].flags&FLAG_ASDEFAULT)))
			GUI_WriteConfigLine(file, "optimisation",	optimisations[p].abbrev,	"default",		optimisations[p].description);
		else
			GUI_WriteConfigLine(file, "optimisation",	optimisations[p].abbrev,	(optimisations[p].flags&FLAG_SETINGUI)?"on":"off",		optimisations[p].description);
	}

	for (p = 0; compiler_flag[p].enabled; p++)
	{
		if (p>0 && compiler_flag[p].enabled == compiler_flag[p-1].enabled)
			continue;	//don't list dupe names.
		if (!strncmp(compiler_flag[p].fullname, "Keyword: ", 9))
			GUI_WriteConfigLine(file, "keyword",	compiler_flag[p].abbrev,	(compiler_flag[p].flags&FLAG_SETINGUI)?"true":"false",	compiler_flag[p].description);
		else
			GUI_WriteConfigLine(file, "flag",		compiler_flag[p].abbrev,	(compiler_flag[p].flags&FLAG_SETINGUI)?"true":"false",	compiler_flag[p].description);
	}

	GUI_WriteConfigLine(file, "showall",			fl_showall?"on":"off",			NULL, "Show all keyword options in the gui");
	GUI_WriteConfigLine(file, "compileonstart",		fl_compileonstart?"on":"off",	NULL, "Recompile on GUI startup");
	GUI_WriteConfigLine(file, "log",				fl_log?"on":"off",				NULL, "Write out a compile log");

	GUI_WriteConfigLine(file, "enginebinary",		enginebinary,					NULL, "Location of the engine binary to run. Change this to something else to run a different engine, but not all support debugging.");
	GUI_WriteConfigLine(file, "basedir",			enginebasedir,					NULL, "The base directory of the game that contains your sub directory");
	GUI_WriteConfigLine(file, "engineargs",			enginecommandline,				NULL, "The engine commandline to use when debugging. You'll likely want to ensure this contains -window as well as the appropriate -game argument.");
	GUI_WriteConfigLine(file, "srcfile",			progssrcname,					NULL, "The progs.src file to load to find ordering of other qc files.");
	GUI_WriteConfigLine(file, "src",				progssrcdir,					NULL, "Additional subdir to read qc files from. Typically blank (ie: the working directory).");

	GUI_WriteConfigInt (file, "tabsize",			fl_tabsize,							  "Specifies the size of tabs in scintilla windows.");
	GUI_WriteConfigLine(file, "extramargins",		fl_extramargins?"on":"off",		NULL, "Enables line number and folding margins.");
	GUI_WriteConfigLine(file, "hexen2",				fl_hexen2?"on":"off",			NULL, "Enable the extra tweaks needed for compatibility with hexen2 engines.");
	GUI_WriteConfigLine(file, "extendedopcodes",	fl_ftetarg?"on":"off",			NULL, "Utilise an extended instruction set, providing support for pointers and faster arrays and other speedups.");

	GUI_WriteConfigLine(file, "parameters",			parameters,						NULL, "Other additional parameters that are not supported by the gui. Likely including -DFOO");

	fclose(file);
}
//grabs a token. modifies original string.
static char *GUI_ParseInPlace(char **state)
{
	char *str = *state, *end;
	while(*str == ' ' || *str == '\t' || *str == '\r' || *str == '\n')
		str++;
	if (*str == '\"')
	{
		char *fmt;
		str++;
		for (end = str, fmt = str; *end; )
		{
			if (*end == '\"')
			{
				*end++ = 0;
				break;
			}
			else if (*end == '\'' && end[1] == '\\')
				*fmt = '\\';
			else if (*end == '\'' && end[1] == '\"')
				*fmt = '\"';
			else if (*end == '\'' && end[1] == '\n')
				*fmt = '\n';
			else if (*end == '\'' && end[1] == '\r')
				*fmt = '\r';
			else if (*end == '\'' && end[1] == '\t')
				*fmt = '\t';
			else
			{
				*fmt++ = *end++;
				continue;
			}
			fmt+=1;
			end+=2;
		}
	}
	else
	{
		for (end = str; *end; end++)
		{
			if (*end == '#')
			{
				*end = 0;
				while (*end && *end != '\n')
					end++;
				break;
			}
			if (*end==' ' || *end =='\t' || *end == '\n' || *end == '\r')
				break;
		}
	}
	if (end && *end)
	{
		*end = 0;
		*state = end+1;
	}
	else *state = end;
	return str;
}
static int GUI_ParseIntInPlace(char **state, int defaultval)
{
	char *token = GUI_ParseInPlace(state);
	if (!stricmp(token, "default"))
		return defaultval;
	else if (!stricmp(token, "on") || !stricmp(token, "true") || !stricmp(token, "yes"))
		return 1;
	else if (!stricmp(token, "off") || !stricmp(token, "false") || !stricmp(token, "no"))
		return 0;
	else
		return atoi(token);
}
static int GUI_ParseBooleanInPlace(char **state, int defaultval)
{
	char *token = GUI_ParseInPlace(state);
	if (!stricmp(token, "default"))
		return defaultval;
	else if (!stricmp(token, "on") || !stricmp(token, "true") || !stricmp(token, "yes"))
		return 1;
	else if (!stricmp(token, "off") || !stricmp(token, "false") || !stricmp(token, "no"))
		return 0;
	else
		return !!atoi(token);
}
void GUI_LoadConfig(void)
{
	char buf[2048];
	char *token, *str;
	FILE *file = fopen("fteqcc.ini", "rb");
	int p;
	//initialise gui-only stuff.
	fl_compileonstart = false;
	fl_extramargins = false;
	fl_tabsize = 8;
	if (!file)
		return;
	fl_nondfltopts = false;
	while (fgets(buf, sizeof(buf), file))
	{
		str = buf;

		token = GUI_ParseInPlace(&str);
		if (!stricmp(token, "optimisation") || !stricmp(token, "opt"))
		{
			char *item = GUI_ParseInPlace(&str);
			int value = GUI_ParseBooleanInPlace(&str, -1);
			for (p = 0; optimisations[p].enabled; p++)
				if (!stricmp(item, optimisations[p].abbrev))
				{
					if (value == -1)
						value = !!(optimisations[p].flags & FLAG_ASDEFAULT);
					else
						fl_nondfltopts = true;
					if (value)
						optimisations[p].flags |= FLAG_SETINGUI;
					else
						optimisations[p].flags &= ~FLAG_SETINGUI;
					break;
				}
			//don't worry too much if its not known
			if (!optimisations[p].enabled)
				printf("Unknown flag: \"%s\"\n", item);
		}
		else if (!stricmp(token, "flag") || !stricmp(token, "fl") || !stricmp(token, "keyword"))
		{
			char *item = GUI_ParseInPlace(&str);
			int value = GUI_ParseBooleanInPlace(&str, -1);
			for (p = 0; compiler_flag[p].enabled; p++)
				if (!stricmp(item, compiler_flag[p].abbrev))
				{
					if (value == -1)
						value = !!(compiler_flag[p].flags & FLAG_ASDEFAULT);
					if (value)
						compiler_flag[p].flags |= FLAG_SETINGUI;
					else
						compiler_flag[p].flags &= ~FLAG_SETINGUI;
					break;
				}
			if (!compiler_flag[p].enabled)
				printf("Unknown flag/keyword: \"%s\"\n", item);
			//don't worry if its not known
		}
		else if (!stricmp(token, "enginebinary"))
			QC_strlcpy(enginebinary, GUI_ParseInPlace(&str), sizeof(enginebinary));
		else if (!stricmp(token, "basedir"))
			QC_strlcpy(enginebasedir, GUI_ParseInPlace(&str), sizeof(enginebasedir));
		else if (!stricmp(token, "engineargs"))
			QC_strlcpy(enginecommandline, GUI_ParseInPlace(&str), sizeof(enginecommandline));
		else if (!stricmp(token, "srcfile"))
			QC_strlcpy(progssrcname, GUI_ParseInPlace(&str), sizeof(progssrcname));
		else if (!stricmp(token, "src"))
			QC_strlcpy(progssrcdir, GUI_ParseInPlace(&str), sizeof(progssrcdir));
		else if (!stricmp(token, "parameters"))
			QC_strlcpy(parameters, GUI_ParseInPlace(&str), sizeof(parameters));

		else if (!stricmp(token, "log"))
			fl_log = GUI_ParseBooleanInPlace(&str, false);
		else if (!stricmp(token, "compileonstart"))
			fl_compileonstart = GUI_ParseBooleanInPlace(&str, false);
		else if (!stricmp(token, "showall"))
			fl_showall = GUI_ParseBooleanInPlace(&str, false);

		else if (!stricmp(token, "tabsize"))
			fl_tabsize = GUI_ParseIntInPlace(&str, false);
		else if (!stricmp(token, "extramargins"))
			fl_extramargins = GUI_ParseBooleanInPlace(&str, false);
		else if (!stricmp(token, "hexen2"))
			fl_hexen2 = GUI_ParseBooleanInPlace(&str, false);
		else if (!stricmp(token, "extendedopcodes"))
			fl_ftetarg = GUI_ParseBooleanInPlace(&str, false);
		else if (*token)
		{
			printf("Unknown setting: \"%s\"\n", token);
		}
	}
	fclose(file);
}


//this function takes the windows specified commandline and strips out all the options menu items.
int GUI_ParseCommandLine(const char *args, pbool keepsrcanddir)
{
	int paramlen=0;
	int l, p;
	const char *next;
	int mode = 0;
	extern int qccpersisthunk;

	if (!*args)
	{
		int len;
		FILE *f;
		char *s;

		f = fopen("fteqcc.arg", "rb");
		if (f)
		{
			fseek(f, 0, SEEK_END);
			len = ftell(f);
			fseek(f, 0, SEEK_SET);
			args = alloca(len+1);
			fread((char*)args, 1, len, f);
			((char*)args)[len] = '\0';
			fclose(f);

			while((s = strchr(args, '\r')))
				*s = ' ';
			while((s = strchr(args, '\n')))
				*s = ' ';
		}
	}

	//find the first argument
	while (*args == ' ' || *args == '\t')
		args++;
	for (next = args; *next&&*next!=' '&&*next !='\t'; next++)
		;


	if (*args != '-')
	{
		pbool qt = *args == '\"';
		l = 0;
		if (qt)
			args++;
		while ((*args != ' ' || qt) && *args)
		{
			if (qt && *args == '\"')
			{
				args++;
				break;
			}
			if (!keepsrcanddir)
				progssrcname[l++] = *args;
			args++;
		}
		if (!keepsrcanddir)
			progssrcname[l] = 0;

		next = args;

		if (!keepsrcanddir)
		{
			args = strrchr(progssrcname, '\\');
			while(args && strchr(args, '/'))
				args = strchr(args, '/');
			if (args)
			{
				memcpy(progssrcdir, progssrcname, args-progssrcname);
				progssrcdir[args-progssrcname] = 0;
				args++;
				memmove(progssrcname, args, strlen(args)+1);

#ifdef _WIN32
				SetCurrentDirectoryA(progssrcdir);
#else
				chdir(progssrcdir);
#endif
				*progssrcdir = 0;
			}
		}
		args = next;
	}

	GUI_LoadConfig();

	paramlen = strlen(parameters);
	if (paramlen)
		parameters[paramlen++] = ' ';
	while(*args)
	{
		while (*args == ' ' || *args == '\t')
			args++;
		for (next = args; *next&&*next!=' '&&*next !='\t'; next++)
			;

		strncpy(parameters+paramlen, args, next-args);
		parameters[paramlen+next-args] = '\0';
		l = strlen(parameters+paramlen)+1;

		if (!strnicmp(parameters+paramlen, "-stdout", 7) || !strnicmp(parameters+paramlen, "--version", 9))
		{
			mode = 1;
		}
		/*else if (!strnicmp(parameters+paramlen, "-zippatch", 9))
		{
			mode = 2;
		}*/
		else if (!strnicmp(parameters+paramlen, "-O", 2) || !strnicmp(parameters+paramlen, "/O", 2))
		{	//strip out all -O
			fl_nondfltopts = true;
			if (parameters[paramlen+2])
			{
				if (parameters[paramlen+2] >= '0' && parameters[paramlen+2] <= '3')
				{
					p = parameters[paramlen+2]-'0';
					for (l = 0; optimisations[l].enabled; l++)
					{
						if (optimisations[l].optimisationlevel<=p)
							optimisations[l].flags |= FLAG_SETINGUI;
						else
							optimisations[l].flags &= ~FLAG_SETINGUI;
					}
				}
				else if (!strncmp(parameters+paramlen+2, "no-", 3))
				{
					if (parameters[paramlen+5])
					{
						for (p = 0; optimisations[p].enabled; p++)
							if ((*optimisations[p].abbrev && !strcmp(parameters+paramlen+5, optimisations[p].abbrev)) || !strcmp(parameters+paramlen+5, optimisations[p].fullname))
							{
								optimisations[p].flags &= ~FLAG_SETINGUI;
								break;
							}

						if (!optimisations[p].enabled)
						{
							parameters[paramlen+next-args] = ' ';
							paramlen += l;
						}
					}
				}
				else
				{
					for (p = 0; optimisations[p].enabled; p++)
						if ((*optimisations[p].abbrev && !strcmp(parameters+paramlen+2, optimisations[p].abbrev)) || !strcmp(parameters+paramlen+2, optimisations[p].fullname))
						{
							optimisations[p].flags |= FLAG_SETINGUI;
							break;
						}

					if (!optimisations[p].enabled)
					{
						parameters[paramlen+next-args] = ' ';
						paramlen += l;
					}
				}
			}
		}
		else if (!strnicmp(parameters+paramlen, "-F", 2) || !strnicmp(parameters+paramlen, "/F", 2) || !strnicmp(parameters+paramlen, "-K", 2) || !strnicmp(parameters+paramlen, "/K", 2))
		{
			if (parameters[paramlen+2])
			{
				if (!strncmp(parameters+paramlen+2, "no-", 3))
				{
					if (parameters[paramlen+5])
					{
						for (p = 0; compiler_flag[p].enabled; p++)
							if ((*compiler_flag[p].abbrev && !strcmp(parameters+paramlen+5, compiler_flag[p].abbrev)) || !strcmp(parameters+paramlen+5, compiler_flag[p].fullname))
							{
								compiler_flag[p].flags &= ~FLAG_SETINGUI;
								break;
							}

						if (!compiler_flag[p].enabled)
						{
							parameters[paramlen+next-args] = ' ';
							paramlen += l;
						}
					}
				}
				else
				{
					for (p = 0; compiler_flag[p].enabled; p++)
						if ((*compiler_flag[p].abbrev && !strcmp(parameters+paramlen+2, compiler_flag[p].abbrev)) || !strcmp(parameters+paramlen+2, compiler_flag[p].fullname))
						{
							compiler_flag[p].flags |= FLAG_SETINGUI;
							break;
						}

					if (!compiler_flag[p].enabled)
					{
						parameters[paramlen+next-args] = ' ';
						paramlen += l;
					}
				}
			}
		}

/*
		else if (!strnicmp(parameters+paramlen, "-Fno-kce", 8) || !strnicmp(parameters+paramlen, "/Fno-kce", 8))	//keywords stuph
		{
			fl_nokeywords_coexist = true;
		}
		else if (!strnicmp(parameters+paramlen, "-Fkce", 5) || !strnicmp(parameters+paramlen, "/Fkce", 5))
		{
			fl_nokeywords_coexist = false;
		}
		else if (!strnicmp(parameters+paramlen, "-Facc", 5) || !strnicmp(parameters+paramlen, "/Facc", 5))
		{
			fl_acc = true;
		}
		else if (!strnicmp(parameters+paramlen, "-autoproto", 10) || !strnicmp(parameters+paramlen, "/autoproto", 10))
		{
			fl_autoprototype = true;
		}
*/
		else if (!strnicmp(parameters+paramlen, "-showall", 8) || !strnicmp(parameters+paramlen, "/showall", 8))
		{
			fl_showall = true;
		}
		else if (!strnicmp(parameters+paramlen, "-ac", 3) || !strnicmp(parameters+paramlen, "/ac", 3))
		{
			fl_compileonstart = true;
		}
		else if (!strnicmp(parameters+paramlen, "-log", 4) || !strnicmp(parameters+paramlen, "/log", 4))
		{
			fl_log = true;
		}
		else if (!strnicmp(parameters+paramlen, "-nolog", 4) || !strnicmp(parameters+paramlen, "/nolog", 4))
		{
			fl_log = false;
		}
		else if (!strnicmp(parameters+paramlen, "-engine", 7) || !strnicmp(parameters+paramlen, "/engine", 7))
		{
			while (*next == ' ')
				next++;
			
			l = 0;
			while (*next != ' ' && *next)
				enginebinary[l++] = *next++;
			enginebinary[l] = 0;
		}
		else if (!strnicmp(parameters+paramlen, "-basedir", 8) || !strnicmp(parameters+paramlen, "/basedir", 8))
		{
			while (*next == ' ')
				next++;
			
			l = 0;
			while (*next != ' ' && *next)
				enginebasedir[l++] = *next++;
			enginebasedir[l] = 0;
		}
		//strcpy(enginecommandline, "-window +map start -nohome");
		else if (!strnicmp(parameters+paramlen, "-srcfile", 8) || !strnicmp(parameters+paramlen, "/srcfile", 8))
		{
			while (*next == ' ')
				next++;
			
			if (keepsrcanddir)
			{	//ignore it
				while (*next != ' ' && *next)
					next++;
			}
			else
			{
				l = 0;
				while (*next != ' ' && *next)
					progssrcname[l++] = *next++;
				progssrcname[l] = 0;
			}
		}
		else if (!strnicmp(parameters+paramlen, "-src ", 5) || !strnicmp(parameters+paramlen, "/src ", 5))
		{
			while (*next == ' ')
				next++;

			if (keepsrcanddir)
			{	//ignore it
				while (*next != ' ' && *next)
					next++;
			}
			else
			{
				l = 0;
				while (*next != ' ' && *next)
					progssrcdir[l++] = *next++;
				progssrcdir[l] = 0;
			}
		}
		else if (!strnicmp(parameters+paramlen, "-T", 2) || !strnicmp(parameters+paramlen, "/T", 2))	//the target
		{
			if (!strnicmp(parameters+paramlen+2, "h2", 2))
			{
				fl_hexen2 = true;
			}
			else
			{
				fl_hexen2 = false;
				parameters[paramlen+next-args] = ' ';
				paramlen += l;
			}
		}
		/*
		else if (isfirst && *args != '-' && *args != '/')
		{
			pbool qt = *args == '\"';
			l = 0;
			if (qt)
				args++;
			while (*args != ' ' && *args)
			{
				if (qt && *args == '\"')
				{
					args++;
					break;
				}
				progssrcname[l++] = *args++;
			}
			progssrcname[l] = 0;

			args = strrchr(progssrcname, '\\');
			while(args && strchr(args, '/'))
				args = strchr(args, '/');
			if (args)
			{
				memcpy(progssrcdir, progssrcname, args-progssrcname);
				progssrcdir[args-progssrcname] = 0;
				args++;
				memmove(progssrcname, args, strlen(args)+1);

				SetCurrentDirectoryA(progssrcdir);
				*progssrcdir = 0;
			}
		}
		*/
		else
		{
			parameters[paramlen+next-args] = ' ';
			paramlen += l;
		}

		args=next;
	}
	if (paramlen)
		parameters[paramlen-1] = '\0';
	else
		*parameters = '\0';

	qccpersisthunk = (mode!=1);
	return mode;
}

void GUI_SetDefaultOpts(void)
{
	int i;
	for (i = 0; compiler_flag[i].enabled; i++)	//enabled is a pointer
	{
		if (compiler_flag[i].flags & FLAG_ASDEFAULT)
			compiler_flag[i].flags |= FLAG_SETINGUI;
		else
			compiler_flag[i].flags &= ~FLAG_SETINGUI;
	}
	for (i = 0; optimisations[i].enabled; i++)	//enabled is a pointer
	{
		if (optimisations[i].flags & FLAG_ASDEFAULT)
			optimisations[i].flags |= FLAG_SETINGUI;
		else
			optimisations[i].flags &= ~FLAG_SETINGUI;
	}
}

void GUI_RevealOptions(void)
{
	int i;
	for (i = 0; compiler_flag[i].enabled; i++)	//enabled is a pointer
	{
		if (fl_showall && compiler_flag[i].flags & FLAG_HIDDENINGUI)
			compiler_flag[i].flags &= ~FLAG_HIDDENINGUI;
	}
	for (i = 0; optimisations[i].enabled; i++)	//enabled is a pointer
	{
		if (fl_showall && optimisations[i].flags & FLAG_HIDDENINGUI)
			optimisations[i].flags &= ~FLAG_HIDDENINGUI;

		if (optimisations[i].flags & FLAG_HIDDENINGUI)	//hidden optimisations are disabled as default
			optimisations[i].optimisationlevel = 4;
	}
}




int GUI_BuildParms(const char *args, const char **argv, pbool quick)//, char *forceoutputfile)
{
	static char param[2048];
	int paramlen = 0;
	int argc;
	const char *next;
	int i;
	int targ;
	char *targs[] = {"", "-Th2", "-Tfte", "-Tfteh2"};


	argc = 1;
	argv[0] = "fteqcc";

	if (quick)
	{
		strcpy(param+paramlen, "-Tparse");
		argv[argc++] = param+paramlen;
		paramlen += strlen(param+paramlen)+1;
	}

	targ = 0;
	targ |= fl_hexen2?1:0;
	targ |= fl_ftetarg?2:0;
	if (*targs[targ])
	{
		strcpy(param+paramlen, targs[targ]);
		argv[argc++] = param+paramlen;
		paramlen += strlen(param+paramlen)+1;
	}

	if (fl_nondfltopts)
	{
		for (i = 0; optimisations[i].enabled; i++)	//enabled is a pointer
		{
			if (optimisations[i].flags & FLAG_SETINGUI)
				sprintf(param+paramlen, "-O%s", optimisations[i].abbrev);
			else
				sprintf(param+paramlen, "-Ono-%s", optimisations[i].abbrev);
			argv[argc++] = param+paramlen;
			paramlen += strlen(param+paramlen)+1;
		}
	}

	for (i = 0; compiler_flag[i].enabled; i++)	//enabled is a pointer
	{
		if (compiler_flag[i].flags & FLAG_SETINGUI)
			sprintf(param+paramlen, "-F%s", compiler_flag[i].abbrev);
		else
			sprintf(param+paramlen, "-Fno-%s", compiler_flag[i].abbrev);
		argv[argc++] = param+paramlen;
		paramlen += strlen(param+paramlen)+1;
	}


/*	while(*args)
	{
		while (*args <= ' '&& *args)
			args++;

		for (next = args; *next>' '; next++)
			;
		strncpy(param+paramlen, args, next-args);
		param[paramlen+next-args] = '\0';
		argv[argc++] = param+paramlen;
		paramlen += strlen(param+paramlen)+1;
		args=next;
	}*/

//	if (*forceoutputfile)
//	{
//		argv[argc++] = "-destfile";
//		argv[argc++] = forceoutputfile;
//	}

	if (*progssrcname)
	{
		argv[argc++] = "-srcfile";
		argv[argc++] = progssrcname;
	}
	if (*progssrcdir)
	{
		argv[argc++] = "-src";
		argv[argc++] = progssrcdir;
	}

	while(*args)
	{
		while (*args <= ' '&& *args)
			args++;

		for (next = args; *next>' '; next++)
			;
		strncpy(param+paramlen, args, next-args);
		param[paramlen+next-args] = '\0';
		argv[argc++] = param+paramlen;
		paramlen += strlen(param+paramlen)+1;

		args=next;
	}

	return argc;
}

pbool GenBuiltinsList(char *buffer, int buffersize)
{
	QCC_def_t *def;
	int usedbuffer = 0;
	int l;
	int fno;
	for (fno = 0; fno < sourcefilesnumdefs; fno++)
	{
		for (def = sourcefilesdefs[fno]; def; def = def->next)
		{
			if (def->scope)
				continue;   //ignore locals, because we don't know where we are, and they're probably irrelevent.

			//if its a builtin function...
			if (def->type->type == ev_function && def->symboldata->function && functions[def->symboldata->function].code<0)
				;
			else if (def->filen && strstr(def->filen, "extensions"))
				;
			else
				continue;

			//but ignore it if its one of those special things that you're not meant to know about.
			if (strcmp(def->name, "IMMEDIATE") && !strchr(def->name, ':') && !strchr(def->name, '.') && !strchr(def->name, '*') && !strchr(def->name, '['))
			{
				l = strlen(def->name);
				if (l && usedbuffer+2+l < buffersize)
				{
					if (usedbuffer)
						buffer[usedbuffer++] = ' ';
					memcpy(buffer+usedbuffer, def->name, l);
					usedbuffer += l;
				}
			}
		}
	}
	buffer[usedbuffer] = 0;
	return usedbuffer>0;
}

void QCC_CloseAllVFiles(void)
{
	vfile_t *f;

	while(qcc_vfiles)
	{
		f = qcc_vfiles;
		qcc_vfiles = f->next;

		free(f->file);
		free(f);
	}
	qcc_vfiles_changed = false;
}
vfile_t *QCC_FindVFile(const char *name)
{
	vfile_t *f;
	for (f = qcc_vfiles; f; f = f->next)
	{
		if (!strcmp(f->filename, name))
			return f;
	}
	//give it another go, for case
	for (f = qcc_vfiles; f; f = f->next)
	{
		if (!QC_strcasecmp(f->filename, name))
			return f;
	}
	return NULL;
}
vfile_t *QCC_AddVFile(const char *name, void *data, size_t size)
{
	vfile_t *f = QCC_FindVFile(name);
	if (!f)
	{
		f = malloc(sizeof(vfile_t) + strlen(name));
		f->next = qcc_vfiles;
		strcpy(f->filename, name);
		qcc_vfiles = f;
	}
	else
		free(f->file);
	f->file = malloc(size);
	f->type = FT_CODE;
	memcpy(f->file, data, size);
	f->size = f->bufsize = size;

	qcc_vfiles_changed = true;
	return f;
}
void QCC_CatVFile(vfile_t *f, const char *fmt, ...)
{
	va_list argptr;
	char msg[65536];
	size_t n;

	va_start (argptr,fmt);
	QC_vsnprintf (msg,sizeof(msg)-1, fmt, argptr);
	va_end (argptr);

	n = strlen(msg);
	if (f->size+n > f->bufsize)
	{
		size_t msize = f->bufsize + n + 8192;
		f->file = realloc(f->file, msize);
		f->bufsize = msize;
	}
	memcpy((char*)f->file+f->size, msg, n);
	f->size += n;
}
void QCC_InsertVFile(vfile_t *f, size_t pos, const char *fmt, ...)
{
	va_list argptr;
	char msg[65536];
	size_t n;
	va_start (argptr,fmt);
	QC_vsnprintf (msg,sizeof(msg)-1, fmt, argptr);
	va_end (argptr);

	n = strlen(msg);
	if (f->size+n > f->bufsize)
	{
		size_t msize = f->bufsize + n + 8192;
		f->file = realloc(f->file, msize);
		f->bufsize = msize;
	}
	memmove((char*)f->file+pos+n, (char*)f->file+pos, f->size-pos);
	f->size += n;
	memcpy((char*)f->file+pos, msg, n);
}