571 lines
18 KiB
C
571 lines
18 KiB
C
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/*
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* Copyright (c) Microsoft Corporation
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*
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* Module Name :
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* parser.c
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*
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* This is the file containing the client code for parsing vt100 escape sequences
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* into console mode output.
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*
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*
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* Sadagopan Rajaram -- Nov 3, 1999
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*
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*/
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#include "tcclnt.h"
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CHAR FinalCharacters[] = "mHJKr";
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HANDLE hConsoleOutput;
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BOOLEAN InEscape=FALSE;
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BOOLEAN lastCharM = FALSE;
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CHAR EscapeBuffer[MAX_TERMINAL_WIDTH];
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int index=0;
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SHORT ScrollTop = 0;
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SHORT ScrollBottom = MAX_TERMINAL_HEIGHT -1;
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#ifdef UNICODE
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int DBCSIndex = 0;
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CHAR DBCSArray[MB_CUR_MAX+1];
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#endif
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VOID (*AttributeFunction)(PCHAR, int);
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VOID
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PrintChar(
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CHAR c
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)
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{
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// A boolean variable to check if we are processing an escape sequence
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if(c == '\033'){
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InEscape = TRUE;
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EscapeBuffer[0] = c;
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index = 1;
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return;
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}
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if(InEscape == TRUE){
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if(index == MAX_TERMINAL_WIDTH){
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// vague escape sequence,give up processing
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InEscape = FALSE;
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index=0;
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return;
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}
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EscapeBuffer[index]=c;
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index++;
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if(FinalCharacter(c)){
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if(c=='m'){
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// maybe getting \017
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lastCharM = TRUE;
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}
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ProcessEscapeSequence(EscapeBuffer, index);
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InEscape = FALSE;
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index=0;
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}
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return;
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}
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if(lastCharM && c == '\017'){
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lastCharM = FALSE;
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return;
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}
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OutputConsole(c);
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return;
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}
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BOOLEAN
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FinalCharacter(
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CHAR c
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)
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{
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if(strchr(FinalCharacters,c)){
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return TRUE;
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}
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return FALSE;
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}
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VOID
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ProcessEscapeSequence(
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PCHAR Buffer,
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int length
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)
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{
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// BUGBUG - Function too big, can optimize code size by having
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// an action variable which is initialized when the strings are
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// compared, so that cut and paste code can be eliminated.
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CONSOLE_SCREEN_BUFFER_INFO csbInfo;
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ULONG charsToWrite;
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ULONG charsWritten;
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PCHAR pTemp;
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int RetVal;
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if (length == 3) {
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// One of the home cursor or clear to end of display
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if (strncmp(Buffer,"\033[H",length)==0) {
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// Home the cursor
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csbInfo.dwCursorPosition.X = 0;
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csbInfo.dwCursorPosition.Y = 0;
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SetConsoleCursorPosition(hConsoleOutput,
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csbInfo.dwCursorPosition
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);
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return;
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}
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if(strncmp(Buffer,"\033[J", length) == 0){
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// clear to end of display assuming 80 X 24 size
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RetVal = GetConsoleScreenBufferInfo(hConsoleOutput,
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&csbInfo
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);
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if (RetVal == FALSE) {
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return;
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}
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SetConsoleMode(hConsoleOutput,
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ENABLE_WRAP_AT_EOL_OUTPUT|ENABLE_PROCESSED_OUTPUT
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);
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charsToWrite = (MAX_TERMINAL_HEIGHT -
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csbInfo.dwCursorPosition.Y)*MAX_TERMINAL_WIDTH -
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csbInfo.dwCursorPosition.X;
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RetVal = FillConsoleOutputAttribute(hConsoleOutput,
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csbInfo.wAttributes,
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charsToWrite,
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csbInfo.dwCursorPosition,
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&charsWritten
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);
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RetVal = FillConsoleOutputCharacter(hConsoleOutput,
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0,
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charsToWrite,
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csbInfo.dwCursorPosition,
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&charsWritten
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);
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SetConsoleMode(hConsoleOutput,
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ENABLE_PROCESSED_OUTPUT
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);
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SetConsoleCursorPosition(hConsoleOutput,
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csbInfo.dwCursorPosition
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);
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return;
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}
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if(strncmp(Buffer,"\033[K", length) == 0){
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// clear to end of line assuming 80 X 24 size
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RetVal = GetConsoleScreenBufferInfo(hConsoleOutput,
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&csbInfo
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);
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if (RetVal == FALSE) {
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return;
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}
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charsToWrite = (MAX_TERMINAL_WIDTH - csbInfo.dwCursorPosition.X);
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RetVal = FillConsoleOutputAttribute(hConsoleOutput,
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csbInfo.wAttributes,
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charsToWrite,
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csbInfo.dwCursorPosition,
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&charsWritten
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);
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RetVal = FillConsoleOutputCharacter(hConsoleOutput,
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0,
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charsToWrite,
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csbInfo.dwCursorPosition,
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&charsWritten
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);
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SetConsoleCursorPosition(hConsoleOutput,
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csbInfo.dwCursorPosition
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);
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return;
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}
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if (strncmp(Buffer,"\033[r", length) == 0) {
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ScrollTop = 0;
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ScrollBottom = MAX_TERMINAL_HEIGHT -1;
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}
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}
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if (length == 4) {
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// One of the home cursor or clear to end of display
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if (strncmp(Buffer,"\033[0H",length)==0) {
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// Home the cursor
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csbInfo.dwCursorPosition.X = 0;
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csbInfo.dwCursorPosition.Y = 0;
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SetConsoleCursorPosition(hConsoleOutput,
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csbInfo.dwCursorPosition
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);
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return;
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}
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if(strncmp(Buffer,"\033[2J",length) == 0){
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// Home the cursor
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csbInfo.dwCursorPosition.X = 0;
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csbInfo.dwCursorPosition.Y = 0;
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SetConsoleCursorPosition(hConsoleOutput,
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csbInfo.dwCursorPosition
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);
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sprintf(Buffer, "\033[0J");
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}
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if(strncmp(Buffer,"\033[0J", length) == 0){
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// clear to end of display assuming 80 X 24 size
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RetVal = GetConsoleScreenBufferInfo(hConsoleOutput,
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&csbInfo
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);
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if (RetVal == FALSE) {
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return;
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}
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SetConsoleMode(hConsoleOutput,
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ENABLE_WRAP_AT_EOL_OUTPUT|ENABLE_PROCESSED_OUTPUT
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);
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charsToWrite = (MAX_TERMINAL_HEIGHT -
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csbInfo.dwCursorPosition.Y)*MAX_TERMINAL_WIDTH -
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csbInfo.dwCursorPosition.X;
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RetVal = FillConsoleOutputAttribute(hConsoleOutput,
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csbInfo.wAttributes,
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charsToWrite,
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csbInfo.dwCursorPosition,
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&charsWritten
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);
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RetVal = FillConsoleOutputCharacter(hConsoleOutput,
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0,
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charsToWrite,
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csbInfo.dwCursorPosition,
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&charsWritten
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);
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SetConsoleMode(hConsoleOutput,
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ENABLE_PROCESSED_OUTPUT
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);
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SetConsoleCursorPosition(hConsoleOutput,
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csbInfo.dwCursorPosition
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);
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return;
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}
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if((strncmp(Buffer,"\033[0K", length) == 0) ||
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(strncmp(Buffer,"\033[2K",length) == 0)){
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// clear to end of line assuming 80 X 24 size
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RetVal = GetConsoleScreenBufferInfo(hConsoleOutput,
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&csbInfo
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);
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if (RetVal == FALSE) {
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return;
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}
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charsToWrite = (MAX_TERMINAL_WIDTH - csbInfo.dwCursorPosition.X);
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RetVal = FillConsoleOutputAttribute(hConsoleOutput,
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csbInfo.wAttributes,
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charsToWrite,
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csbInfo.dwCursorPosition,
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&charsWritten
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);
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RetVal = FillConsoleOutputCharacter(hConsoleOutput,
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0,
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charsToWrite,
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csbInfo.dwCursorPosition,
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&charsWritten
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);
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SetConsoleCursorPosition(hConsoleOutput,
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csbInfo.dwCursorPosition
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);
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return;
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}
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if((strncmp(Buffer,"\033[0m", length) == 0)||
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(strncmp(Buffer,"\033[m\017", length) == 0)){
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// clear all attributes and set Text attributes to black on white
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SetConsoleTextAttribute(hConsoleOutput,
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FOREGROUND_RED |FOREGROUND_BLUE |FOREGROUND_GREEN
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);
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return;
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}
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}
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if(Buffer[length-1] == 'm'){
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//set the text attributes
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// clear all attributes and set Text attributes to white on black
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SetConsoleTextAttribute(hConsoleOutput,
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FOREGROUND_RED |FOREGROUND_BLUE |FOREGROUND_GREEN
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);
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AttributeFunction(Buffer, length);
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return;
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}
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if(Buffer[length -1] == 'H'){
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// Set cursor position
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if (sscanf(Buffer,"\033[%d;%d", &charsToWrite, &charsWritten) == 2) {
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csbInfo.dwCursorPosition.Y = (SHORT)(charsToWrite -1);
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csbInfo.dwCursorPosition.X = (SHORT)(charsWritten -1);
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SetConsoleCursorPosition(hConsoleOutput,
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csbInfo.dwCursorPosition
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);
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}
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return;
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}
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if(Buffer[length -1] == 'r'){
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// Set scroll region
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sscanf(Buffer,"\033[%d;%d", &charsToWrite,&charsWritten);
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if ((charsToWrite < 1)
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|| (charsToWrite > MAX_TERMINAL_HEIGHT)
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|| (charsWritten < charsToWrite)) {
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return;
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}
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ScrollTop = (SHORT)(charsToWrite -1);
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ScrollBottom = (SHORT)(charsWritten -1);
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}
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return;
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}
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VOID
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ProcessTextAttributes(
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PCHAR Buffer,
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int length
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)
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{
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PCHAR CurrLoc = Buffer;
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ULONG Attribute;
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WORD TextAttribute = 0;
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BOOLEAN Reverse = FALSE;
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PCHAR pTemp;
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while(*CurrLoc != 'm'){
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if((*CurrLoc < '0') || (*CurrLoc >'9' )){
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CurrLoc ++;
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}else{
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if (sscanf(CurrLoc,"%d", &Attribute) != 1) {
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return;
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}
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switch(Attribute){
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case 1:
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TextAttribute = TextAttribute | FOREGROUND_INTENSITY;
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break;
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case 37:
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TextAttribute = TextAttribute|FOREGROUND_RED |FOREGROUND_BLUE |FOREGROUND_GREEN;
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break;
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case 47:
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TextAttribute = TextAttribute|BACKGROUND_RED |BACKGROUND_BLUE |BACKGROUND_GREEN;
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break;
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case 34:
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TextAttribute = TextAttribute|FOREGROUND_BLUE;
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break;
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case 44:
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TextAttribute = TextAttribute|BACKGROUND_BLUE;
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break;
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case 31:
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TextAttribute = TextAttribute|FOREGROUND_RED;
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break;
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case 41:
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TextAttribute = TextAttribute|BACKGROUND_RED;
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break;
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case 33:
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TextAttribute = TextAttribute|FOREGROUND_GREEN|FOREGROUND_BLUE;
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break;
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case 43:
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TextAttribute = TextAttribute|BACKGROUND_GREEN|BACKGROUND_BLUE;
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break;
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case 7:
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// Reverse the background and foreground colors
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Reverse=TRUE;
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default:
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break;
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}
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pTemp = strchr(CurrLoc, ';');
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if(pTemp == NULL){
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pTemp = strchr(CurrLoc, 'm');
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}
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if(pTemp == NULL) {
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break;
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}
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CurrLoc = pTemp;
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}
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}
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if (Reverse) {
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if ((!TextAttribute) ||
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(TextAttribute == FOREGROUND_INTENSITY)) {
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// Reverse vt100 escape sequence.
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TextAttribute = TextAttribute |
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BACKGROUND_RED |BACKGROUND_BLUE |BACKGROUND_GREEN;
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}
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}
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if(TextAttribute){
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SetConsoleTextAttribute(hConsoleOutput,
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TextAttribute
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);
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}
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return;
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}
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VOID
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vt100Attributes(
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|
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PCHAR Buffer,
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int length
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|
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)
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||
|
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{
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|
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PCHAR CurrLoc = Buffer;
|
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|
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ULONG Attribute;
|
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|
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WORD TextAttribute = 0;
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PCHAR pTemp;
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|
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while(*CurrLoc != 'm'){
|
||
|
|
if((*CurrLoc < '0') || (*CurrLoc >'9' )){
|
||
|
|
CurrLoc ++;
|
||
|
|
}else{
|
||
|
|
if (sscanf(CurrLoc,"%d", &Attribute) != 1) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
switch(Attribute){
|
||
|
|
case 1:
|
||
|
|
TextAttribute = TextAttribute | FOREGROUND_INTENSITY;
|
||
|
|
break;
|
||
|
|
case 5:
|
||
|
|
TextAttribute = TextAttribute | BACKGROUND_INTENSITY;
|
||
|
|
break;
|
||
|
|
case 7:
|
||
|
|
TextAttribute = TextAttribute |
|
||
|
|
BACKGROUND_RED |BACKGROUND_BLUE |BACKGROUND_GREEN;
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
pTemp = strchr(CurrLoc, ';');
|
||
|
|
if(pTemp == NULL){
|
||
|
|
pTemp = strchr(CurrLoc, 'm');
|
||
|
|
}
|
||
|
|
if(pTemp == NULL) {
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
CurrLoc = pTemp;
|
||
|
|
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if(TextAttribute){
|
||
|
|
SetConsoleTextAttribute(hConsoleOutput,
|
||
|
|
TextAttribute
|
||
|
|
);
|
||
|
|
}
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
VOID
|
||
|
|
OutputConsole(
|
||
|
|
CHAR byte
|
||
|
|
)
|
||
|
|
{
|
||
|
|
|
||
|
|
CONSOLE_SCREEN_BUFFER_INFO csbInfo;
|
||
|
|
COORD dwBufferCoord;
|
||
|
|
SMALL_RECT sRect;
|
||
|
|
BOOL RetVal;
|
||
|
|
TCHAR Char;
|
||
|
|
SHORT ypos;
|
||
|
|
CHAR_INFO Fill;
|
||
|
|
DWORD charsWritten;
|
||
|
|
|
||
|
|
|
||
|
|
if (byte == '\n'){
|
||
|
|
RetVal = GetConsoleScreenBufferInfo(hConsoleOutput,
|
||
|
|
&csbInfo
|
||
|
|
);
|
||
|
|
if (RetVal == FALSE) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
ypos = csbInfo.dwCursorPosition.Y;
|
||
|
|
if ((ypos == ScrollBottom ) || (ypos == MAX_TERMINAL_HEIGHT -1 )) {
|
||
|
|
// Do the scrolling
|
||
|
|
dwBufferCoord.X = 0;
|
||
|
|
dwBufferCoord.Y = ScrollBottom;
|
||
|
|
Fill.Char.UnicodeChar = (WCHAR) 0;
|
||
|
|
Fill.Attributes = FOREGROUND_RED |FOREGROUND_BLUE |FOREGROUND_GREEN;
|
||
|
|
if ((ypos == ScrollBottom)
|
||
|
|
&& (ScrollTop != ScrollBottom)) {
|
||
|
|
sRect.Left = 0;
|
||
|
|
sRect.Top = ScrollTop + 1;
|
||
|
|
sRect.Right = MAX_TERMINAL_WIDTH-1;
|
||
|
|
sRect.Bottom = ScrollBottom;
|
||
|
|
dwBufferCoord.Y = ScrollTop;
|
||
|
|
dwBufferCoord.X = 0;
|
||
|
|
RetVal = ScrollConsoleScreenBuffer(hConsoleOutput,
|
||
|
|
&sRect,
|
||
|
|
NULL,
|
||
|
|
dwBufferCoord,
|
||
|
|
&Fill
|
||
|
|
);
|
||
|
|
dwBufferCoord.Y = ScrollBottom;
|
||
|
|
|
||
|
|
} else {
|
||
|
|
if (ypos == MAX_TERMINAL_HEIGHT -1){
|
||
|
|
sRect.Left = 0;
|
||
|
|
sRect.Top = 1;
|
||
|
|
sRect.Right = MAX_TERMINAL_WIDTH-1;
|
||
|
|
sRect.Bottom = MAX_TERMINAL_HEIGHT - 1;
|
||
|
|
dwBufferCoord.Y = 0;
|
||
|
|
dwBufferCoord.X = 0;
|
||
|
|
RetVal = ScrollConsoleScreenBuffer(hConsoleOutput,
|
||
|
|
&sRect,
|
||
|
|
NULL,
|
||
|
|
dwBufferCoord,
|
||
|
|
&Fill
|
||
|
|
);
|
||
|
|
dwBufferCoord.Y = MAX_TERMINAL_HEIGHT -1;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
RetVal = FillConsoleOutputCharacter(hConsoleOutput,
|
||
|
|
(TCHAR) 0,
|
||
|
|
MAX_TERMINAL_WIDTH,
|
||
|
|
dwBufferCoord,
|
||
|
|
&charsWritten
|
||
|
|
);
|
||
|
|
return;
|
||
|
|
|
||
|
|
} else {
|
||
|
|
|
||
|
|
csbInfo.dwCursorPosition.Y = ypos + 1;
|
||
|
|
|
||
|
|
SetConsoleCursorPosition(hConsoleOutput,
|
||
|
|
csbInfo.dwCursorPosition
|
||
|
|
);
|
||
|
|
}
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
if (byte == '\r'){
|
||
|
|
RetVal = GetConsoleScreenBufferInfo(hConsoleOutput,
|
||
|
|
&csbInfo
|
||
|
|
);
|
||
|
|
if (RetVal == FALSE) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
csbInfo.dwCursorPosition.X = 0;
|
||
|
|
|
||
|
|
SetConsoleCursorPosition(hConsoleOutput,
|
||
|
|
csbInfo.dwCursorPosition
|
||
|
|
);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
Char = (TCHAR) byte;
|
||
|
|
|
||
|
|
#ifdef UNICODE
|
||
|
|
DBCSArray[DBCSIndex] = byte;
|
||
|
|
if(DBCSIndex ==0){
|
||
|
|
if(isleadbyte(byte)){
|
||
|
|
DBCSIndex ++;
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else{
|
||
|
|
mbtowc(&Char, DBCSArray, 2);
|
||
|
|
DBCSIndex = 0;
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
_tprintf(_T("%c"),Char);
|
||
|
|
return;
|
||
|
|
}
|