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windows-xp/Source/XPSP1/NT/sdktools/vi/nt.c

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/* $Header: /nw/tony/src/stevie/src/RCS/os2.c,v 1.7 89/08/07 05:49:19 tony Exp $
*
* NT System-dependent routines.
*/
/*
* Revision history:
*
* 6/1/93 - Joe Mitchell
* Add support to create a new screen buffer. This fixes the
* problem of scrolling the number of lines that "screen buffer size
* height" is set to when a vertical scroll bar is present.
* Allow filenames longer than 8.3 for use with HPFS/NTFS.
*/
#include <nt.h>
#include <ntrtl.h>
#include <nturtl.h>
#include <windows.h>
#include <signal.h>
#include <conio.h>
#include <io.h>
#include <direct.h>
#undef max
#undef min
#include "stevie.h"
#define MAX_VK 0x7f
#define UCHR unsigned char // so table looks nice
UCHR RegularTable[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* 08 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* 10 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* 18 */ 0x00, 0x00, 0x00, 0x1b, 0x00, 0x00, 0x00, 0x00,
/* 20 */ 0x00, K_PU, K_PD, K_EN, K_HO, K_LE, K_UP, K_RI,
/* 28 */ K_DO, 0x00, 0x00, 0x00, 0x00, K_IN, K_DE, 0x00,
/* 30 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* 38 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* 40 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* 48 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* 50 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* 58 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* 60 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* 68 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* 70 */ K_F1, K_F2, K_F3, K_F4, K_F5, K_F6, K_F7, K_F8,
/* 78 */ K_F9, K_FA, K_FB, K_FC, 0x00, 0x00, 0x00, 0x00 };
UCHR ShiftedTable[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* 08 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* 10 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* 18 */ 0x00, 0x00, 0x00, 0x1b, 0x00, 0x00, 0x00, 0x00,
/* 20 */ 0x00, K_PU, K_PD, K_EN, K_HO, K_LE, K_UP, K_RI,
/* 28 */ K_DO, 0x00, 0x00, 0x00, 0x00, K_IN, K_DE, 0x00,
/* 30 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* 38 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* 40 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* 48 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* 50 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* 58 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* 60 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* 68 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* 70 */ K_S1, K_S2, K_S3, K_S4, K_S5, K_S6, K_S7, K_S8,
/* 78 */ K_S9, K_SA, K_SB, K_SC, 0x00, 0x00, 0x00, 0x00 };
UCHR ControlTable[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* 08 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* 10 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* 18 */ 0x00, 0x00, 0x00, 0x1b, 0x00, 0x00, K_CG, 0x00,
/* 20 */ 0x00, K_PU, K_PD, K_EN, K_HO, K_LE, K_UP, K_RI,
/* 28 */ K_DO, 0x00, 0x00, 0x00, 0x00, K_IN, K_DE, 0x00,
/* 30 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* 38 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* 40 */ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
/* 48 */ 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
/* 50 */ 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
/* 58 */ 0x18, 0x19, 0x1a, 0x00, 0x00, 0x00, 0x00, 0x00,
/* 60 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* 68 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* 70 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* 78 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
#define ALT_PRESSED (RIGHT_ALT_PRESSED | LEFT_ALT_PRESSED)
#define CTL_PRESSED (RIGHT_CTRL_PRESSED | LEFT_CTRL_PRESSED)
#define CONTROL_ALT (ALT_PRESSED | CTL_PRESSED)
#define OMODE (ENABLE_PROCESSED_OUTPUT | ENABLE_WRAP_AT_EOL_OUTPUT)
static HANDLE CurrConsole;
static HANDLE ViConsole,ConsoleIn;
static HANDLE PrevConsole; // [jrm 6/93] Save previous screen buffer
static DWORD OldConsoleMode;
static DWORD ViConsoleInputMode;
/*
* inchar() - get a character from the keyboard
*/
int
inchar()
{
INPUT_RECORD InputRec;
DWORD NumRead;
got_int = FALSE;
flushbuf(); /* flush any pending output */
while(1) { /* loop until we get a valid console event */
ReadConsoleInput(ConsoleIn,&InputRec,1,&NumRead);
if((InputRec.EventType == KEY_EVENT)
&& (InputRec.Event.KeyEvent.bKeyDown))
{
KEY_EVENT_RECORD *KE = &InputRec.Event.KeyEvent;
unsigned char *Table;
if(KE->dwControlKeyState & ALT_PRESSED) {
continue; // no ALT keys allowed.
} else if(KE->dwControlKeyState & CTL_PRESSED) {
Table = ControlTable;
} else if(KE->uChar.AsciiChar) { // no control, no alt
return(KE->uChar.AsciiChar);
} else if(KE->dwControlKeyState & SHIFT_PRESSED) {
Table = ShiftedTable;
} else {
Table = RegularTable;
}
if((KE->wVirtualKeyCode > MAX_VK) || !Table[KE->wVirtualKeyCode]) {
continue;
}
return(Table[KE->wVirtualKeyCode]);
}
}
}
#if 0
switch (c = _getch()) {
case 0x1e:
return K_CGRAVE;
case 0: /* special key */
if (State != NORMAL) {
c = _getch(); /* throw away next char */
continue; /* and loop for another char */
}
switch (c = _getch()) {
case 0x50:
return K_DARROW;
case 0x48:
return K_UARROW;
case 0x4b:
return K_LARROW;
case 0x4d:
return K_RARROW;
case 0x52:
return K_INSERT;
case 0x47:
stuffin("1G");
return -1;
case 0x4f:
stuffin("G");
return -1;
case 0x51:
stuffin(mkstr(CTRL('F')));
return -1;
case 0x49:
stuffin(mkstr(CTRL('B')));
return -1;
/*
* Hard-code some useful function key macros.
*/
case 0x3b: /* F1 */
stuffin(":N\n");
return -1;
case 0x54: /* SF1 */
stuffin(":N!\n");
return -1;
case 0x3c: /* F2 */
stuffin(":n\n");
return -1;
case 0x55: /* SF2 */
stuffin(":n!\n");
return -1;
case 0x3d: /* F3 */
stuffin(":e #\n");
return -1;
case 0x3e: /* F4 */
stuffin(":rew\n");
return -1;
case 0x57: /* SF4 */
stuffin(":rew!\n");
return -1;
case 0x3f: /* F5 */
stuffin("[[");
return -1;
case 0x40: /* F6 */
stuffin("]]");
return -1;
case 0x41: /* F7 - explain C declaration */
stuffin("yyp^iexplain \033!!cdecl\n");
return -1;
case 0x42: /* F8 - declare C variable */
stuffin("yyp!!cdecl\n");
return -1;
case 0x43: /* F9 */
stuffin(":x\n");
return -1;
case 0x44: /* F10 */
stuffin(":help\n");
return -1;
default:
break;
}
break;
default:
return c;
}
}
}
#endif
#define BSIZE 2048
static char outbuf[BSIZE];
static int bpos = 0;
DWORD CursorSize;
DWORD OrgCursorSize;
void
flushbuf()
{
BOOL st; // [jrm 6/93]
DWORD count; // [jrm 6/93]
//
// [jrm 6/93] Use WriteFile rather than "write" to take advantage of
// new screen buffer.
//
if (bpos != 0) {
//jrm write(1, outbuf, bpos);
st = WriteFile(CurrConsole, outbuf, bpos, &count, NULL);
if (!st) {
fprintf(stderr, "vi: Error calling WriteFile");
}
}
bpos = 0;
}
/*
* Macro to output a character. Used within this file for speed.
*/
#define outone(c) outbuf[bpos++] = c; if (bpos >= BSIZE) flushbuf()
/*
* Function version for use outside this file.
*/
void
outchar(c)
register char c;
{
outbuf[bpos++] = c;
if (bpos >= BSIZE)
flushbuf();
}
/*
* outstr(s) - write a string to the console
*/
void
outstr(s)
register char *s;
{
while (*s) {
outone(*s++);
}
}
void
beep()
{
Beep(500,50); // 500Hz for 1/4 sec
}
void sleep(n)
int n;
{
Sleep(1000L * n);
}
void
delay()
{
flushbuf();
Sleep(300L);
}
void
sig()
{
// signal(SIGINT, sig);
got_int = TRUE;
}
WORD Attribute;
WORD HighlightAttribute;
void
useviconsole()
{
flushbuf();
SetConsoleActiveScreenBuffer(CurrConsole = ViConsole);
CursorSize = P(P_CS);
VisibleCursor();
FlushConsoleInputBuffer(ConsoleIn);
SetConsoleMode(ConsoleIn,ViConsoleInputMode);
}
void
usecmdconsole()
{
flushbuf();
SetConsoleActiveScreenBuffer(CurrConsole = PrevConsole);
CursorSize = OrgCursorSize;
VisibleCursor();
FlushConsoleInputBuffer(ConsoleIn);
SetConsoleMode(ConsoleIn,OldConsoleMode);
}
void
windinit()
{
COORD coord;
CONSOLE_SCREEN_BUFFER_INFO Info;
CONSOLE_CURSOR_INFO Info2;
DWORD NumRead;
ConsoleIn=GetStdHandle(STD_INPUT_HANDLE);
//
// [jrm 6/93] Create a new screen buffer. This fixes the scroll problem
// when there is a vertical scroll bar.
//
PrevConsole = GetStdHandle(STD_OUTPUT_HANDLE);
CurrConsole =
ViConsole = CreateConsoleScreenBuffer(GENERIC_READ | GENERIC_WRITE,
FILE_SHARE_READ | FILE_SHARE_WRITE,
NULL,
CONSOLE_TEXTMODE_BUFFER,
NULL);
if (ViConsole == INVALID_HANDLE_VALUE) {
printf("CreateConsoleScreenBuffer failed in windinit\n");
printf("LastError = 0x%lx\n", GetLastError());
exit(0);
}
SetConsoleActiveScreenBuffer(ViConsole);
SetConsoleMode(ViConsole, OMODE);
GetConsoleScreenBufferInfo(ViConsole,&Info);
P(P_CO) = Columns = Info.dwSize.X;
P(P_LI) = Rows = Info.dwSize.Y;
P(P_SS) = Rows / 2;
GetConsoleCursorInfo(ViConsole,&Info2);
P(P_CS) = OrgCursorSize = CursorSize = Info2.dwSize;
coord.X = coord.Y = 0;
ReadConsoleOutputAttribute(ViConsole,
&Attribute,
sizeof(Attribute)/sizeof(WORD),
coord,
&NumRead);
GetConsoleMode(ConsoleIn,&OldConsoleMode);
ViConsoleInputMode = OldConsoleMode & ~(ENABLE_PROCESSED_INPUT |
ENABLE_LINE_INPUT |
ENABLE_ECHO_INPUT |
ENABLE_WINDOW_INPUT |
ENABLE_MOUSE_INPUT
);
SetConsoleMode(ConsoleIn,ViConsoleInputMode);
setviconsoletitle();
// signal(SIGINT, sig);
//
// Calculate a reasonable default search highlight
// by flipping colors for the current screen.
//
HighlightAttribute = ((Attribute & 0xff00) | ((Attribute & 0x00f0) >> 4) |
((Attribute & 0x000f) << 4));
}
void
setviconsoletitle()
{
char title[2000];
strcpy(title, Appname);
if (Filename) {
strcat(title, " ");
strcat(title, Filename);
}
SetConsoleTitle(title);
}
void
wchangescreen(NewRows, NewColumns)
int NewRows;
int NewColumns;
{
#if 0
CONSOLE_SCREEN_BUFFER_INFO info;
#endif
SMALL_RECT screenRect;
COORD screenSize;
#if 0
GetConsoleScreenBufferInfo(ViConsole,&info);
info.dwSize.X = NewRows;
info.dwSize.Y = NewColumns;
#endif
screenSize.X = (short)NewColumns;
screenSize.Y = (short)NewRows;
SetConsoleScreenBufferSize(ViConsole, screenSize);
screenRect.Top = 0;
screenRect.Left = 0;
screenRect.Right = NewColumns - 1;
screenRect.Bottom = NewRows - 1;
SetConsoleWindowInfo(ViConsole, TRUE, &screenRect);
}
void
windexit(r)
int r;
{
usecmdconsole();
exit(r);
}
void
windgoto(r, c)
register int r, c;
{
COORD coord;
flushbuf();
coord.X = (SHORT)c;
coord.Y = (SHORT)r;
SetConsoleCursorPosition(ViConsole,coord);
}
FILE *
fopenb(fname, mode)
char *fname;
char *mode;
{
char modestr[16];
sprintf(modestr, "%sb", mode);
return fopen(fname, modestr);
}
#define PSIZE 128
/*
* fixname(s) - fix up a dos name
*
* Takes a name like:
*
* d:\x\y\z\base.ext
*
* and trims 'base' to 8 characters, and 'ext' to 3.
*/
char *
fixname(s)
char *s;
{
static char f[PSIZE];
char base[32];
char ext[32];
char *p;
int d = 0;
int i;
strcpy(f, s);
if (f[1] == ':') {
if (('a' <= f[0] && f[0] <= 'z') ||
('A' <= f[0] && f[0] <= 'Z')) {
d = 2;
}
}
for (i=0; i < PSIZE ;i++)
if (f[d+i] == '/')
f[d+i] = '\\';
/*
* Split the name into directory, base, extension.
*/
if ((p = strrchr(f+d, '\\')) != NULL) {
strcpy(base, p+1);
p[1] = '\0';
} else {
strcpy(base, f+d);
f[d] = '\0';
}
if ((p = strchr(base, '.')) != NULL) {
strcpy(ext, p+1);
*p = '\0';
} else
ext[0] = '\0';
#if 0 /* [jrm 6/93] Allow longer filenames for HPFS/NTFS */
/*
* Trim the base name if necessary.
*/
if (strlen(base) > 8)
base[8] = '\0';
if (strlen(ext) > 3)
ext[3] = '\0';
#endif
/*
* Paste it all back together
*/
strcat(f, base);
strcat(f, ".");
strcat(f, ext);
return f;
}
LONG
mysystem(cmd, async)
char *cmd;
int async;
{
STARTUPINFO si;
PROCESS_INFORMATION pi;
BOOL ok;
DWORD status;
char *cmdline;
char title[200];
char *title2;
char *shell = getenv("SHELL");
if (!shell) {
shell = getenv("COMSPEC");
}
if (!shell) {
shell = "cmd.exe";
}
if (!cmd) {
return !_access(shell,0);
}
if (!*cmd) {
cmdline = _strdup(shell);
} else {
cmdline = malloc(strlen(shell) + strlen(cmd) + 5);
strcpy(cmdline, shell);
strcat(cmdline, " /c ");
strcat(cmdline, cmd);
}
memset(&si, 0, sizeof(si));
si.cb = sizeof(si);
if (async) {
si.dwFlags = STARTF_USESHOWWINDOW;
si.wShowWindow = SW_SHOWNA;
}
if (!async) {
GetConsoleTitle(title, sizeof(title));
title2 = malloc(strlen(title) + 4 + strlen(cmdline));
strcpy(title2, title);
strcat(title2, " - ");
strcat(title2, cmdline);
SetConsoleTitle(title2);
free(title2);
}
ok = CreateProcess(NULL,
cmdline,
NULL,
NULL,
FALSE,
CREATE_NEW_PROCESS_GROUP |
(async ? CREATE_NEW_CONSOLE : 0),
NULL,
NULL,
&si,
&pi
);
free(cmdline);
if (!ok) {
status = (DWORD)-1;
} else {
if (async) {
status = 0;
} else {
SetConsoleCtrlHandler(NULL, TRUE);
WaitForSingleObject(pi.hProcess, INFINITE);
SetConsoleCtrlHandler(NULL, FALSE);
GetExitCodeProcess(pi.hProcess, &status);
}
CloseHandle(pi.hProcess);
CloseHandle(pi.hThread);
}
if (!async) {
SetConsoleTitle(title);
}
return (LONG)status;
}
void
doshell(cmd, async)
char *cmd;
int async;
{
int c;
if (async) {
mysystem(cmd? cmd : "", async);
} else {
usecmdconsole();
if (!cmd) {
mysystem("", async);
} else {
outchar('!');
outstr(cmd);
outchar('\n');
flushbuf();
mysystem(cmd, async);
}
c = wait_return0();
outchar('\n');
useviconsole();
if (c == ':') {
outchar(NL);
docmdln(getcmdln(c));
} else {
screenclear();
}
updatescreen();
}
}
void
dochdir(arg)
char *arg;
{
if (_chdir(arg)) {
emsg("bad directory");
}
}
/*
NT console stuff
*/
static DWORD RowSave,ColSave;
void Scroll(int t,int l,int b,int r,int Row,int Col)
{
SMALL_RECT ScrollRect;
COORD Coord;
CHAR_INFO CharInfo;
ScrollRect.Left = (SHORT)l;
ScrollRect.Right = (SHORT)r;
ScrollRect.Top = (SHORT)t;
ScrollRect.Bottom = (SHORT)b;
Coord.X = (SHORT)Col;
Coord.Y = (SHORT)Row;
CharInfo.Char.AsciiChar = ' ';
CharInfo.Attributes = Attribute;
ScrollConsoleScreenBuffer(ViConsole,&ScrollRect,NULL,Coord,&CharInfo);
}
void EraseLine(void)
{
CONSOLE_SCREEN_BUFFER_INFO Info;
DWORD NumWritten;
flushbuf();
GetConsoleScreenBufferInfo(ViConsole,&Info);
Info.dwCursorPosition.X = 0;
SetConsoleCursorPosition(ViConsole,Info.dwCursorPosition);
FillConsoleOutputCharacter(ViConsole,' ',Columns,Info.dwCursorPosition, &NumWritten);
}
void EraseNLinesAtRow(int n,int row)
{
COORD coord;
DWORD NumWritten;
flushbuf();
coord.X = 0;
coord.Y = (short)row;
FillConsoleOutputCharacter(ViConsole,' ',n*Columns,coord, &NumWritten);
}
void ClearDisplay(void)
{
COORD c;
DWORD NumWritten;
flushbuf();
c.X = c.Y = 0;
SetConsoleCursorPosition(ViConsole,c);
FillConsoleOutputCharacter(ViConsole,' ',Rows*Columns,c, &NumWritten);
}
void SaveCursor(void)
{
CONSOLE_SCREEN_BUFFER_INFO Info;
flushbuf();
GetConsoleScreenBufferInfo(ViConsole,&Info);
ColSave = Info.dwCursorPosition.X;
RowSave = Info.dwCursorPosition.Y;
}
void RestoreCursor(void)
{
COORD c;
flushbuf();
c.X = (SHORT)ColSave;
c.Y = (SHORT)RowSave;
SetConsoleCursorPosition(ViConsole,c);
}
void InvisibleCursor(void)
{
CONSOLE_CURSOR_INFO Info;
flushbuf();
Info.dwSize = CursorSize;
Info.bVisible = FALSE;
SetConsoleCursorInfo(CurrConsole,&Info);
}
void VisibleCursor(void)
{
CONSOLE_CURSOR_INFO Info;
flushbuf();
Info.dwSize = CursorSize;
Info.bVisible = TRUE;
SetConsoleCursorInfo(CurrConsole,&Info);
}
int CurHighlightLine = -1;
int CurHighlightColumn = -1;
int CurHighlightLength = -1;
char CurHighlightString[512];
int
StrLength(char *cp)
{
int length = 0;
int diff;
while (*cp) {
if (*cp == '\t') {
diff = P(P_TS) - (length % P(P_TS));
length += diff;
} else {
length++;
}
cp++;
}
return length;
}
void HighlightLine( int col, unsigned long line, char *string )
{
COORD dwWriteCoord;
DWORD dwNumWritten;
int length;
if (P(P_HS) == FALSE)
return;
length = StrLength(string);
if (length > Columns) {
length = Columns;
}
if (col >= (Columns - 1)) {
col--;
}
dwWriteCoord.X = CurHighlightColumn = col;
dwWriteCoord.Y = CurHighlightLine = line;
FillConsoleOutputAttribute(ViConsole,
HighlightAttribute,
length,
dwWriteCoord,
&dwNumWritten);
updateline();
#if 0
WriteConsoleOutputCharacter(ViConsole,
string,
length,
dwWriteCoord,
&dwNumWritten);
#endif
strcpy(CurHighlightString, string);
CurHighlightLength = length;
}
#define FOREGROUND_WHITE (FOREGROUND_BLUE | \
FOREGROUND_GREEN | \
FOREGROUND_RED | \
FOREGROUND_INTENSITY)
void RemoveHighlight( int col, unsigned long line, int length, char *string )
{
COORD dwWriteCoord;
DWORD dwNumWritten;
length = StrLength(string);
if (length > Columns) {
length = Columns;
}
dwWriteCoord.X = (short)col;
dwWriteCoord.Y = (int)line;
FillConsoleOutputAttribute(ViConsole,
Attribute,
length,
dwWriteCoord,
&dwNumWritten);
updateline();
#if 0
WriteConsoleOutputCharacter(ViConsole,
string,
length,
dwWriteCoord,
&dwNumWritten);
#endif
}
void HighlightCheck()
{
if (P(P_HS) == FALSE)
return;
if (CurHighlightLine != -1) {
RemoveHighlight(CurHighlightColumn,
CurHighlightLine,
CurHighlightLength,
CurHighlightString);
CurHighlightLine = -1;
CurHighlightColumn = -1;
}
}