argv_winmain.cpp File Reference

#include <corecrt_internal.h>
#include <mbstring.h>

Include dependency graph for argv_winmain.cpp:

Go to the source code of this file.

Functions
static void	do_locale_initialization (unsigned char) throw ()
static unsigned char *	get_command_line (unsigned char) throw ()
static wchar_t *	get_command_line (wchar_t) throw ()
static bool __cdecl	should_copy_another_character (unsigned char const c) throw ()
static bool __cdecl	should_copy_another_character (wchar_t) throw ()
template<typename Character >
static Character *__cdecl	common_wincmdln () throw ()
char *__cdecl	_get_narrow_winmain_command_line ()
wchar_t *__cdecl	_get_wide_winmain_command_line ()

Variables
static void	do_locale_initialization (wchar_t)

Function Documentation

_get_narrow_winmain_command_line()

char *__cdecl _get_narrow_winmain_command_line

(

void

)

Definition at line 102 of file argv_winmain.cpp.

{   // Need to use unsigned char so that we correctly handle ASCII characters
    // above 127, in particular the comparison to ' ' (space - 0x20).
    return reinterpret_cast<char *>(common_wincmdln<unsigned char>());
}

Referenced by test__get_narrow_winmain_command_line().

_get_wide_winmain_command_line()

wchar_t *__cdecl _get_wide_winmain_command_line

(

void

)

Definition at line 108 of file argv_winmain.cpp.

{
    return common_wincmdln<wchar_t>();
}

common_wincmdln()

template<typename Character >

static Character *__cdecl common_wincmdln ( ) throw ( )

static

Definition at line 68 of file argv_winmain.cpp.

{
    do_locale_initialization(Character());
 
    static Character empty_string[] = { '\0' };
 
    Character* command_line = get_command_line(Character()) == nullptr
        ? empty_string
        : get_command_line(Character());
 
    // Skip past the program name (the first token in the command line) and
    // check for and handle a quoted program name:
    bool in_double_quotes = false;
    while (*command_line > ' ' || (*command_line != '\0' && in_double_quotes))
    {
        // Toggle the in_double_quotes flag if the current character is '"'
        if (*command_line == '"')
            in_double_quotes = !in_double_quotes;
 
        if (should_copy_another_character(*command_line))
            ++command_line;
 
        ++command_line;
    }
 
    // Skip past any whitespace preceding the next token:
    while (*command_line != '\0' && *command_line <= ' ')
        ++command_line;
 
    return command_line;
}

do_locale_initialization()

static void do_locale_initialization ( unsigned char  ) throw ( )

static

Definition at line 18 of file argv_winmain.cpp.

{ __acrt_initialize_multibyte(); }

get_command_line() [1/2]

static unsigned char * get_command_line ( unsigned char  ) throw ( )

static

Definition at line 21 of file argv_winmain.cpp.

{
    return reinterpret_cast<unsigned char *>(_acmdln);
}

Referenced by common_wincmdln().

get_command_line() [2/2]

static wchar_t * get_command_line ( wchar_t  ) throw ( )

static

Definition at line 26 of file argv_winmain.cpp.

{ return _wcmdln; }

should_copy_another_character() [1/2]

static bool __cdecl should_copy_another_character ( unsigned char const  c ) throw ( )

static

Definition at line 32 of file argv_winmain.cpp.

{
    // This is OK for UTF-8 as a quote is never a trail byte.
    return _ismbblead(c) != 0;
}

Referenced by common_wincmdln().

should_copy_another_character() [2/2]

static bool __cdecl should_copy_another_character ( wchar_t  ) throw ( )

static

Definition at line 38 of file argv_winmain.cpp.

{
    // This is OK for UTF-16 as a quote is never part of a surrogate pair.
    return false;
}

Variable Documentation

do_locale_initialization

void do_locale_initialization(wchar_t) ( wchar_t  )

static

Definition at line 19 of file argv_winmain.cpp.

{ /* no-op */                    }

Referenced by common_wincmdln().