The Tor Browser: other-licenses/7zstub/src/Common/StdInStream.cpp@b8a032363ba2

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

     1 // Common/StdInStream.cpp

     3 #include "StdAfx.h"

     5 #include <tchar.h>

     6 #include "StdInStream.h"

     8 static const char kIllegalChar = '\0';

     9 static const char kNewLineChar = '\n';

    11 static const char *kEOFMessage = "Unexpected end of input stream";

    12 static const char *kReadErrorMessage  ="Error reading input stream";

    13 static const char *kIllegalCharMessage = "Illegal character in input stream";

    15 static LPCTSTR kFileOpenMode = TEXT("r");

    17 CStdInStream g_StdIn(stdin);

    19 bool CStdInStream::Open(LPCTSTR fileName)

    20 {

    21   Close();

    22   _stream = _tfopen(fileName, kFileOpenMode);

    23   _streamIsOpen = (_stream != 0);

    24   return _streamIsOpen;

    25 }

    27 bool CStdInStream::Close()

    28 {

    29   if(!_streamIsOpen)

    30     return true;

    31   _streamIsOpen = (fclose(_stream) != 0);

    32   return !_streamIsOpen;

    33 }

    35 CStdInStream::~CStdInStream()

    36 {

    37   Close();

    38 }

    40 AString CStdInStream::ScanStringUntilNewLine()

    41 {

    42   AString s;

    43   while(true)

    44   {

    45     int intChar = GetChar();

    46     if(intChar == EOF)

    47       throw kEOFMessage;

    48     char c = char(intChar);

    49     if (c == kIllegalChar)

    50       throw kIllegalCharMessage;

    51     if(c == kNewLineChar)

    52       return s;

    53     s += c;

    54   }

    55 }

    57 void CStdInStream::ReadToString(AString &resultString)

    58 {

    59   resultString.Empty();

    60   int c;

    61   while((c = GetChar()) != EOF)

    62     resultString += char(c);

    63 }

    65 bool CStdInStream::Eof()

    66 {

    67   return (feof(_stream) != 0);

    68 }

    70 int CStdInStream::GetChar()

    71 {

    72   int c = getc(_stream);

    73   if(c == EOF && !Eof())

    74     throw kReadErrorMessage;

    75   return c;

    76 }

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