d4708
/
source-engine
mirror of https://github.com/nillerusr/source-engine.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity
Modified source engine (2017) developed by valve and leaked in 2020. Not for commercial purporses
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
551 Commits
25 Branches
6 Tags
221 MiB
 
 
 
 
 
 
Tree: 29985681a1
Branches Tags
${ item.name }
Create tag ${ searchTerm }
Create branch ${ searchTerm }
from '29985681a1'
${ noResults }
source-engine/tier1/strtools.cpp

4342 lines
111 KiB
Raw Blame History

//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose: String Tools
//
//===========================================================================//
// These are redefined in the project settings to prevent anyone from using them.
// We in this module are of a higher caste and thus are privileged in their use.
#ifdef strncpy
#undef strncpy
#endif
#ifdef _snprintf
#undef _snprintf
#endif
#if defined( sprintf )
#undef sprintf
#endif
#if defined( vsprintf )
#undef vsprintf
#endif
#ifdef _vsnprintf
#ifdef _WIN32
#undef _vsnprintf
#endif
#endif
#ifdef vsnprintf
#ifndef _WIN32
#undef vsnprintf
#endif
#endif
#if defined( strcat )
#undef strcat
#endif
#ifdef strncat
#undef strncat
#endif
// NOTE: I have to include stdio + stdarg first so vsnprintf gets compiled in
#include <stdio.h>
#include <stdarg.h>
#ifdef POSIX
#include <ctype.h>
#include <unistd.h>
#include <stdlib.h>
#define _getcwd getcwd
#elif _WIN32
#include <direct.h>
#if !defined( _X360 )
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#endif
#endif
#ifdef _WIN32
#ifndef CP_UTF8
#define CP_UTF8 65001
#endif
#endif
#include "tier0/dbg.h"
#include "tier1/strtools.h"
#include <string.h>
#include <stdlib.h>
#include <time.h>
#include "tier0/basetypes.h"
#include "tier1/utldict.h"
#include "tier1/utlbuffer.h"
#include "tier1/utlstring.h"
#include "tier1/fmtstr.h"
#if defined( _X360 )
#include "xbox/xbox_win32stubs.h"
#endif
#include "tier0/memdbgon.h"
#ifdef ANDROID
#include "common/android/iconv.h"
#elif POSIX
#include <iconv.h>
#endif
static int FastToLower( char c )
{
int i = (unsigned char) c;
if ( i < 0x80 )
{
// Brutally fast branchless ASCII tolower():
i += (((('A'-1) - i) & (i - ('Z'+1))) >> 26) & 0x20;
}
else
{
i += isupper( i ) ? 0x20 : 0;
}
return i;
}
void _V_memset (const char* file, int line, void *dest, int fill, int count)
{
Assert( count >= 0 );
AssertValidWritePtr( dest, count );
memset(dest,fill,count);
}
void _V_memcpy (const char* file, int line, void *dest, const void *src, int count)
{
Assert( count >= 0 );
AssertValidReadPtr( src, count );
AssertValidWritePtr( dest, count );
memcpy( dest, src, count );
}
void _V_memmove(const char* file, int line, void *dest, const void *src, int count)
{
Assert( count >= 0 );
AssertValidReadPtr( src, count );
AssertValidWritePtr( dest, count );
memmove( dest, src, count );
}
int _V_memcmp (const char* file, int line, const void *m1, const void *m2, int count)
{
Assert( count >= 0 );
AssertValidReadPtr( m1, count );
AssertValidReadPtr( m2, count );
return memcmp( m1, m2, count );
}
int _V_strlen(const char* file, int line, const char *str)
{
AssertValidStringPtr(str);
return strlen( str );
}
void _V_strcpy (const char* file, int line, char *dest, const char *src)
{
AssertValidWritePtr(dest);
AssertValidStringPtr(src);
strcpy( dest, src );
}
int _V_wcslen(const char* file, int line, const wchar_t *pwch)
{
return wcslen( pwch );
}
char *_V_strrchr(const char* file, int line, const char *s, char c)
{
AssertValidStringPtr( s );
int len = V_strlen(s);
s += len;
while (len--)
if (*--s == c) return (char *)s;
return 0;
}
int _V_strcmp (const char* file, int line, const char *s1, const char *s2)
{
AssertValidStringPtr( s1 );
AssertValidStringPtr( s2 );
return strcmp( s1, s2 );
}
int _V_wcscmp (const char* file, int line, const wchar_t *s1, const wchar_t *s2)
{
AssertValidReadPtr( s1 );
AssertValidReadPtr( s2 );
while ( *s1 == *s2 )
{
if ( !*s1 )
return 0; // strings are equal
s1++;
s2++;
}
return *s1 > *s2 ? 1 : -1; // strings not equal
}
char *_V_strstr(const char* file, int line, const char *s1, const char *search )
{
AssertValidStringPtr( s1 );
AssertValidStringPtr( search );
#if defined( _X360 )
return (char *)strstr( (char *)s1, search );
#else
return (char *)strstr( s1, search );
#endif
}
wchar_t *_V_wcsupr (const char* file, int line, wchar_t *start)
{
return _wcsupr( start );
}
wchar_t *_V_wcslower (const char* file, int line, wchar_t *start)
{
return _wcslwr(start);
}
char *V_strupr( char *start )
{
unsigned char *str = (unsigned char*)start;
while( *str )
{
if ( (unsigned char)(*str - 'a') <= ('z' - 'a') )
*str -= 'a' - 'A';
else if ( (unsigned char)*str >= 0x80 ) // non-ascii, fall back to CRT
*str = toupper( *str );
str++;
}
return start;
}
char *V_strlower( char *start )
{
unsigned char *str = (unsigned char*)start;
while( *str )
{
if ( (unsigned char)(*str - 'A') <= ('Z' - 'A') )
*str += 'a' - 'A';
else if ( (unsigned char)*str >= 0x80 ) // non-ascii, fall back to CRT
*str = tolower( *str );
str++;
}
return start;
}
char *V_strnlwr(char *s, size_t count)
{
// Assert( count >= 0 ); tautology since size_t is unsigned
AssertValidStringPtr( s, count );
char* pRet = s;
if ( !s || !count )
return s;
while ( -- count > 0 )
{
if ( !*s )
return pRet; // reached end of string
*s = tolower( *s );
++s;
}
*s = 0; // null-terminate original string at "count-1"
return pRet;
}
int V_stricmp( const char *str1, const char *str2 )
{
// It is not uncommon to compare a string to itself. See
// VPanelWrapper::GetPanel which does this a lot. Since stricmp
// is expensive and pointer comparison is cheap, this simple test
// can save a lot of cycles, and cache pollution.
if ( str1 == str2 )
{
return 0;
}
const unsigned char *s1 = (const unsigned char*)str1;
const unsigned char *s2 = (const unsigned char*)str2;
for ( ; *s1; ++s1, ++s2 )
{
if ( *s1 != *s2 )
{
// in ascii char set, lowercase = uppercase | 0x20
unsigned char c1 = *s1 | 0x20;
unsigned char c2 = *s2 | 0x20;
if ( c1 != c2 || (unsigned char)(c1 - 'a') > ('z' - 'a') )
{
// if non-ascii mismatch, fall back to CRT for locale
if ( (c1 | c2) >= 0x80 ) return stricmp( (const char*)s1, (const char*)s2 );
// ascii mismatch. only use the | 0x20 value if alphabetic.
if ((unsigned char)(c1 - 'a') > ('z' - 'a')) c1 = *s1;
if ((unsigned char)(c2 - 'a') > ('z' - 'a')) c2 = *s2;
return c1 > c2 ? 1 : -1;
}
}
}
return *s2 ? -1 : 0;
}
int V_strnicmp( const char *str1, const char *str2, int n )
{
const unsigned char *s1 = (const unsigned char*)str1;
const unsigned char *s2 = (const unsigned char*)str2;
for ( ; n > 0 && *s1; --n, ++s1, ++s2 )
{
if ( *s1 != *s2 )
{
// in ascii char set, lowercase = uppercase | 0x20
unsigned char c1 = *s1 | 0x20;
unsigned char c2 = *s2 | 0x20;
if ( c1 != c2 || (unsigned char)(c1 - 'a') > ('z' - 'a') )
{
// if non-ascii mismatch, fall back to CRT for locale
if ( (c1 | c2) >= 0x80 ) return strnicmp( (const char*)s1, (const char*)s2, n );
// ascii mismatch. only use the | 0x20 value if alphabetic.
if ((unsigned char)(c1 - 'a') > ('z' - 'a')) c1 = *s1;
if ((unsigned char)(c2 - 'a') > ('z' - 'a')) c2 = *s2;
return c1 > c2 ? 1 : -1;
}
}
}
return (n > 0 && *s2) ? -1 : 0;
}
int V_strncmp( const char *s1, const char *s2, int count )
{
Assert( count >= 0 );
AssertValidStringPtr( s1, count );
AssertValidStringPtr( s2, count );
while ( count > 0 )
{
if ( *s1 != *s2 )
return (unsigned char)*s1 < (unsigned char)*s2 ? -1 : 1; // string different
if ( *s1 == '\0' )
return 0; // null terminator hit - strings the same
s1++;
s2++;
count--;
}
return 0; // count characters compared the same
}
const char *StringAfterPrefix( const char *str, const char *prefix )
{
AssertValidStringPtr( str );
AssertValidStringPtr( prefix );
do
{
if ( !*prefix )
return str;
}
while ( FastToLower( *str++ ) == FastToLower( *prefix++ ) );
return NULL;
}
const char *StringAfterPrefixCaseSensitive( const char *str, const char *prefix )
{
AssertValidStringPtr( str );
AssertValidStringPtr( prefix );
do
{
if ( !*prefix )
return str;
}
while ( *str++ == *prefix++ );
return NULL;
}
int64 V_atoi64( const char *str )
{
AssertValidStringPtr( str );
int64 val;
int64 sign;
int64 c;
Assert( str );
if (*str == '-')
{
sign = -1;
str++;
}
else if (*str == '+')
{
sign = 1;
str++;
}
else
{
sign = 1;
}
val = 0;
//
// check for hex
//
if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X') )
{
str += 2;
while (1)
{
c = *str++;
if (c >= '0' && c <= '9')
val = (val<<4) + c - '0';
else if (c >= 'a' && c <= 'f')
val = (val<<4) + c - 'a' + 10;
else if (c >= 'A' && c <= 'F')
val = (val<<4) + c - 'A' + 10;
else
return val*sign;
}
}
//
// check for character
//
if (str[0] == '\'')
{
return sign * str[1];
}
//
// assume decimal
//
while (1)
{
c = *str++;
if (c <'0' || c > '9')
return val*sign;
val = val*10 + c - '0';
}
return 0;
}
uint64 V_atoui64( const char *str )
{
AssertValidStringPtr( str );
uint64 val;
uint64 c;
Assert( str );
val = 0;
//
// check for hex
//
if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X') )
{
str += 2;
while (1)
{
c = *str++;
if (c >= '0' && c <= '9')
val = (val<<4) + c - '0';
else if (c >= 'a' && c <= 'f')
val = (val<<4) + c - 'a' + 10;
else if (c >= 'A' && c <= 'F')
val = (val<<4) + c - 'A' + 10;
else
return val;
}
}
//
// check for character
//
if (str[0] == '\'')
{
return str[1];
}
//
// assume decimal
//
while (1)
{
c = *str++;
if (c <'0' || c > '9')
return val;
val = val*10 + c - '0';
}
return 0;
}
int V_atoi( const char *str )
{
return (int)V_atoi64( str );
}
float V_atof (const char *str)
{
AssertValidStringPtr( str );
double val;
int sign;
int c;
int decimal, total;
if (*str == '-')
{
sign = -1;
str++;
}
else if (*str == '+')
{
sign = 1;
str++;
}
else
{
sign = 1;
}
val = 0;
//
// check for hex
//
if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X') )
{
str += 2;
while (1)
{
c = *str++;
if (c >= '0' && c <= '9')
val = (val*16) + c - '0';
else if (c >= 'a' && c <= 'f')
val = (val*16) + c - 'a' + 10;
else if (c >= 'A' && c <= 'F')
val = (val*16) + c - 'A' + 10;
else
return val*sign;
}
}
//
// check for character
//
if (str[0] == '\'')
{
return sign * str[1];
}
//
// assume decimal
//
decimal = -1;
total = 0;
int exponent = 0;
while (1)
{
c = *str++;
if (c == '.')
{
if ( decimal != -1 )
{
break;
}
decimal = total;
continue;
}
if (c <'0' || c > '9')
{
if ( c == 'e' || c == 'E' )
{
exponent = V_atoi(str);
}
break;
}
val = val*10 + c - '0';
total++;
}
if ( exponent != 0 )
{
val *= pow( 10.0, exponent );
}
if (decimal == -1)
return val*sign;
while (total > decimal)
{
val /= 10;
total--;
}
return val*sign;
}
//-----------------------------------------------------------------------------
// Normalizes a float string in place.
//
// (removes leading zeros, trailing zeros after the decimal point, and the decimal point itself where possible)
//-----------------------------------------------------------------------------
void V_normalizeFloatString( char* pFloat )
{
// If we have a decimal point, remove trailing zeroes:
if( strchr( pFloat,'.' ) )
{
int len = V_strlen(pFloat);
while( len > 1 && pFloat[len - 1] == '0' )
{
pFloat[len - 1] = '\0';
len--;
}
if( len > 1 && pFloat[ len - 1 ] == '.' )
{
pFloat[len - 1] = '\0';
len--;
}
}
// TODO: Strip leading zeros
}
//-----------------------------------------------------------------------------
// Finds a string in another string with a case insensitive test
//-----------------------------------------------------------------------------
char const* V_stristr( char const* pStr, char const* pSearch )
{
AssertValidStringPtr(pStr);
AssertValidStringPtr(pSearch);
if (!pStr || !pSearch)
return 0;
char const* pLetter = pStr;
// Check the entire string
while (*pLetter != 0)
{
// Skip over non-matches
if (FastToLower((unsigned char)*pLetter) == FastToLower((unsigned char)*pSearch))
{
// Check for match
char const* pMatch = pLetter + 1;
char const* pTest = pSearch + 1;
while (*pTest != 0)
{
// We've run off the end; don't bother.
if (*pMatch == 0)
return 0;
if (FastToLower((unsigned char)*pMatch) != FastToLower((unsigned char)*pTest))
break;
++pMatch;
++pTest;
}
// Found a match!
if (*pTest == 0)
return pLetter;
}
++pLetter;
}
return 0;
}
char* V_stristr( char* pStr, char const* pSearch )
{
AssertValidStringPtr( pStr );
AssertValidStringPtr( pSearch );
return (char*)V_stristr( (char const*)pStr, pSearch );
}
//-----------------------------------------------------------------------------
// Finds a string in another string with a case insensitive test w/ length validation
//-----------------------------------------------------------------------------
char const* V_strnistr( char const* pStr, char const* pSearch, int n )
{
AssertValidStringPtr(pStr);
AssertValidStringPtr(pSearch);
if (!pStr || !pSearch)
return 0;
char const* pLetter = pStr;
// Check the entire string
while (*pLetter != 0)
{
if ( n <= 0 )
return 0;
// Skip over non-matches
if (FastToLower(*pLetter) == FastToLower(*pSearch))
{
int n1 = n - 1;
// Check for match
char const* pMatch = pLetter + 1;
char const* pTest = pSearch + 1;
while (*pTest != 0)
{
if ( n1 <= 0 )
return 0;
// We've run off the end; don't bother.
if (*pMatch == 0)
return 0;
if (FastToLower(*pMatch) != FastToLower(*pTest))
break;
++pMatch;
++pTest;
--n1;
}
// Found a match!
if (*pTest == 0)
return pLetter;
}
++pLetter;
--n;
}
return 0;
}
const char* V_strnchr( const char* pStr, char c, int n )
{
char const* pLetter = pStr;
char const* pLast = pStr + n;
// Check the entire string
while ( (pLetter < pLast) && (*pLetter != 0) )
{
if (*pLetter == c)
return pLetter;
++pLetter;
}
return NULL;
}
void V_strncpy( char *pDest, char const *pSrc, int maxLen )
{
Assert( maxLen >= sizeof( *pDest ) );
AssertValidWritePtr( pDest, maxLen );
AssertValidStringPtr( pSrc );
strncpy( pDest, pSrc, maxLen );
if ( maxLen > 0 )
{
pDest[maxLen-1] = 0;
}
}
// warning C6053: Call to 'wcsncpy' might not zero-terminate string 'pDest'
// warning C6059: Incorrect length parameter in call to 'strncat'. Pass the number of remaining characters, not the buffer size of 'argument 1'
// warning C6386: Buffer overrun: accessing 'argument 1', the writable size is 'destBufferSize' bytes, but '1000' bytes might be written
// These warnings were investigated through code inspection and writing of tests and they are
// believed to all be spurious.
#ifdef _PREFAST_
#pragma warning( push )
#pragma warning( disable : 6053 6059 6386 )
#endif
void V_wcsncpy( wchar_t *pDest, wchar_t const *pSrc, int maxLenInBytes )
{
Assert( maxLenInBytes >= sizeof( *pDest ) );
AssertValidWritePtr( pDest, maxLenInBytes );
AssertValidReadPtr( pSrc );
int maxLen = maxLenInBytes / sizeof(wchar_t);
wcsncpy( pDest, pSrc, maxLen );
if( maxLen )
{
pDest[maxLen-1] = 0;
}
}
int V_snwprintf( wchar_t *pDest, int maxLen, const wchar_t *pFormat, ... )
{
Assert( maxLen > 0 );
AssertValidWritePtr( pDest, maxLen );
AssertValidReadPtr( pFormat );
va_list marker;
va_start( marker, pFormat );
#ifdef _WIN32
int len = _vsnwprintf( pDest, maxLen, pFormat, marker );
#elif POSIX
int len = vswprintf( pDest, maxLen, pFormat, marker );
#else
#error "define vsnwprintf type."
#endif
va_end( marker );
// Len > maxLen represents an overflow on POSIX, < 0 is an overflow on windows
if( len < 0 || len >= maxLen )
{
len = maxLen;
pDest[maxLen-1] = 0;
}
return len;
}
int V_vsnwprintf( wchar_t *pDest, int maxLen, const wchar_t *pFormat, va_list params )
{
Assert( maxLen > 0 );
#ifdef _WIN32
int len = _vsnwprintf( pDest, maxLen, pFormat, params );
#elif POSIX
int len = vswprintf( pDest, maxLen, pFormat, params );
#else
#error "define vsnwprintf type."
#endif
// Len < 0 represents an overflow
// Len == maxLen represents exactly fitting with no NULL termination
// Len >= maxLen represents overflow on POSIX
if ( len < 0 || len >= maxLen )
{
len = maxLen;
pDest[maxLen-1] = 0;
}
return len;
}
int V_snprintf( char *pDest, int maxLen, char const *pFormat, ... )
{
Assert( maxLen > 0 );
AssertValidWritePtr( pDest, maxLen );
AssertValidStringPtr( pFormat );
va_list marker;
va_start( marker, pFormat );
#ifdef _WIN32
int len = _vsnprintf( pDest, maxLen, pFormat, marker );
#elif POSIX
int len = vsnprintf( pDest, maxLen, pFormat, marker );
#else
#error "define vsnprintf type."
#endif
va_end( marker );
// Len > maxLen represents an overflow on POSIX, < 0 is an overflow on windows
if( len < 0 || len >= maxLen )
{
len = maxLen;
pDest[maxLen-1] = 0;
}
return len;
}
int V_vsnprintf( char *pDest, int maxLen, char const *pFormat, va_list params )
{
Assert( maxLen > 0 );
AssertValidWritePtr( pDest, maxLen );
AssertValidStringPtr( pFormat );
int len = _vsnprintf( pDest, maxLen, pFormat, params );
// Len > maxLen represents an overflow on POSIX, < 0 is an overflow on windows
if( len < 0 || len >= maxLen )
{
len = maxLen;
pDest[maxLen-1] = 0;
}
return len;
}
int V_vsnprintfRet( char *pDest, int maxLen, const char *pFormat, va_list params, bool *pbTruncated )
{
Assert( maxLen > 0 );
AssertValidWritePtr( pDest, maxLen );
AssertValidStringPtr( pFormat );
int len = _vsnprintf( pDest, maxLen, pFormat, params );
if ( pbTruncated )
{
*pbTruncated = ( len < 0 || len >= maxLen );
}
if ( len < 0 || len >= maxLen )
{
len = maxLen;
pDest[maxLen-1] = 0;
}
return len;
}
//-----------------------------------------------------------------------------
// Purpose: If COPY_ALL_CHARACTERS == max_chars_to_copy then we try to add the whole pSrc to the end of pDest, otherwise
// we copy only as many characters as are specified in max_chars_to_copy (or the # of characters in pSrc if thats's less).
// Input : *pDest - destination buffer
// *pSrc - string to append
// destBufferSize - sizeof the buffer pointed to by pDest
// max_chars_to_copy - COPY_ALL_CHARACTERS in pSrc or max # to copy
// Output : char * the copied buffer
//-----------------------------------------------------------------------------
char *V_strncat(char *pDest, const char *pSrc, size_t destBufferSize, int max_chars_to_copy )
{
size_t charstocopy = (size_t)0;
Assert( (ptrdiff_t)destBufferSize >= 0 );
AssertValidStringPtr( pDest);
AssertValidStringPtr( pSrc );
size_t len = strlen(pDest);
size_t srclen = strlen( pSrc );
if ( max_chars_to_copy <= COPY_ALL_CHARACTERS )
{
charstocopy = srclen;
}
else
{
charstocopy = (size_t)min( max_chars_to_copy, (int)srclen );
}
if ( len + charstocopy >= destBufferSize )
{
charstocopy = destBufferSize - len - 1;
}
if ( (int)charstocopy <= 0 )
{
return pDest;
}
ANALYZE_SUPPRESS( 6059 ); // warning C6059: : Incorrect length parameter in call to 'strncat'. Pass the number of remaining characters, not the buffer size of 'argument 1'
char *pOut = strncat( pDest, pSrc, charstocopy );
return pOut;
}
wchar_t *V_wcsncat( INOUT_Z_CAP(cchDest) wchar_t *pDest, const wchar_t *pSrc, size_t cchDest, int max_chars_to_copy )
{
size_t charstocopy = (size_t)0;
Assert( (ptrdiff_t)cchDest >= 0 );
size_t len = wcslen(pDest);
size_t srclen = wcslen( pSrc );
if ( max_chars_to_copy <= COPY_ALL_CHARACTERS )
{
charstocopy = srclen;
}
else
{
charstocopy = (size_t)min( max_chars_to_copy, (int)srclen );
}
if ( len + charstocopy >= cchDest )
{
charstocopy = cchDest - len - 1;
}
if ( (int)charstocopy <= 0 )
{
return pDest;
}
ANALYZE_SUPPRESS( 6059 ); // warning C6059: : Incorrect length parameter in call to 'strncat'. Pass the number of remaining characters, not the buffer size of 'argument 1'
wchar_t *pOut = wcsncat( pDest, pSrc, charstocopy );
return pOut;
}
//-----------------------------------------------------------------------------
// Purpose: Converts value into x.xx MB/ x.xx KB, x.xx bytes format, including commas
// Input : value -
// 2 -
// false -
// Output : char
//-----------------------------------------------------------------------------
#define NUM_PRETIFYMEM_BUFFERS 8
char *V_pretifymem( float value, int digitsafterdecimal /*= 2*/, bool usebinaryonek /*= false*/ )
{
static char output[ NUM_PRETIFYMEM_BUFFERS ][ 32 ];
static int current;
float onekb = usebinaryonek ? 1024.0f : 1000.0f;
float onemb = onekb * onekb;
char *out = output[ current ];
current = ( current + 1 ) & ( NUM_PRETIFYMEM_BUFFERS -1 );
char suffix[ 8 ];
// First figure out which bin to use
if ( value > onemb )
{
value /= onemb;
V_snprintf( suffix, sizeof( suffix ), " MB" );
}
else if ( value > onekb )
{
value /= onekb;
V_snprintf( suffix, sizeof( suffix ), " KB" );
}
else
{
V_snprintf( suffix, sizeof( suffix ), " bytes" );
}
char val[ 32 ];
// Clamp to >= 0
digitsafterdecimal = max( digitsafterdecimal, 0 );
// If it's basically integral, don't do any decimals
if ( FloatMakePositive( value - (int)value ) < 0.00001 )
{
V_snprintf( val, sizeof( val ), "%i%s", (int)value, suffix );
}
else
{
char fmt[ 32 ];
// Otherwise, create a format string for the decimals
V_snprintf( fmt, sizeof( fmt ), "%%.%if%s", digitsafterdecimal, suffix );
V_snprintf( val, sizeof( val ), fmt, value );
}
// Copy from in to out
char *i = val;
char *o = out;
// Search for decimal or if it was integral, find the space after the raw number
char *dot = strstr( i, "." );
if ( !dot )
{
dot = strstr( i, " " );
}
// Compute position of dot
int pos = dot - i;
// Don't put a comma if it's <= 3 long
pos -= 3;
while ( *i )
{
// If pos is still valid then insert a comma every third digit, except if we would be
// putting one in the first spot
if ( pos >= 0 && !( pos % 3 ) )
{
// Never in first spot
if ( o != out )
{
*o++ = ',';
}
}
// Count down comma position
pos--;
// Copy rest of data as normal
*o++ = *i++;
}
// Terminate
*o = 0;
return out;
}
//-----------------------------------------------------------------------------
// Purpose: Returns a string representation of an integer with commas
// separating the 1000s (ie, 37,426,421)
// Input : value - Value to convert
// Output : Pointer to a static buffer containing the output
//-----------------------------------------------------------------------------
#define NUM_PRETIFYNUM_BUFFERS 8 // Must be a power of two
char *V_pretifynum( int64 inputValue )
{
static char output[ NUM_PRETIFYMEM_BUFFERS ][ 32 ];
static int current;
// Point to the output buffer.
char * const out = output[ current ];
// Track the output buffer end for easy calculation of bytes-remaining.
const char* const outEnd = out + sizeof( output[ current ] );
// Point to the current output location in the output buffer.
char *pchRender = out;
// Move to the next output pointer.
current = ( current + 1 ) & ( NUM_PRETIFYMEM_BUFFERS -1 );
*out = 0;
// In order to handle the most-negative int64 we need to negate it
// into a uint64.
uint64 value;
// Render the leading minus sign, if necessary
if ( inputValue < 0 )
{
V_snprintf( pchRender, 32, "-" );
value = (uint64)-inputValue;
// Advance our output pointer.
pchRender += V_strlen( pchRender );
}
else
{
value = (uint64)inputValue;
}
// Now let's find out how big our number is. The largest number we can fit
// into 63 bits is about 9.2e18. So, there could potentially be six
// three-digit groups.
// We need the initial value of 'divisor' to be big enough to divide our
// number down to 1-999 range.
uint64 divisor = 1;
// Loop more than six times to avoid integer overflow.
for ( int i = 0; i < 6; ++i )
{
// If our divisor is already big enough then stop.
if ( value < divisor * 1000 )
break;
divisor *= 1000;
}
// Print the leading batch of one to three digits.
int toPrint = value / divisor;
V_snprintf( pchRender, outEnd - pchRender, "%d", toPrint );
for (;;)
{
// Advance our output pointer.
pchRender += V_strlen( pchRender );
// Adjust our value to be printed and our divisor.
value -= toPrint * divisor;
divisor /= 1000;
if ( !divisor )
break;
// The remaining blocks of digits always include a comma and three digits.
toPrint = value / divisor;
V_snprintf( pchRender, outEnd - pchRender, ",%03d", toPrint );
}
return out;
}
//-----------------------------------------------------------------------------
// Purpose: returns true if a wide character is a "mean" space; that is,
// if it is technically a space or punctuation, but causes disruptive
// behavior when used in names, web pages, chat windows, etc.
//
// characters in this set are removed from the beginning and/or end of strings
// by Q_AggressiveStripPrecedingAndTrailingWhitespaceW()
//-----------------------------------------------------------------------------
bool Q_IsMeanSpaceW( wchar_t wch )
{
bool bIsMean = false;
switch ( wch )
{
case L'\x0082': // BREAK PERMITTED HERE
case L'\x0083': // NO BREAK PERMITTED HERE
case L'\x00A0': // NO-BREAK SPACE
case L'\x034F': // COMBINING GRAPHEME JOINER
case L'\x2000': // EN QUAD
case L'\x2001': // EM QUAD
case L'\x2002': // EN SPACE
case L'\x2003': // EM SPACE
case L'\x2004': // THICK SPACE
case L'\x2005': // MID SPACE
case L'\x2006': // SIX SPACE
case L'\x2007': // figure space
case L'\x2008': // PUNCTUATION SPACE
case L'\x2009': // THIN SPACE
case L'\x200A': // HAIR SPACE
case L'\x200B': // ZERO-WIDTH SPACE
case L'\x200C': // ZERO-WIDTH NON-JOINER
case L'\x200D': // ZERO WIDTH JOINER
case L'\x200E': // LEFT-TO-RIGHT MARK
case L'\x2028': // LINE SEPARATOR
case L'\x2029': // PARAGRAPH SEPARATOR
case L'\x202F': // NARROW NO-BREAK SPACE
case L'\x2060': // word joiner
case L'\xFEFF': // ZERO-WIDTH NO BREAK SPACE
case L'\xFFFC': // OBJECT REPLACEMENT CHARACTER
bIsMean = true;
break;
}
return bIsMean;
}
//-----------------------------------------------------------------------------
// Purpose: strips trailing whitespace; returns pointer inside string just past
// any leading whitespace.
//
// bAggresive = true causes this function to also check for "mean" spaces,
// which we don't want in persona names or chat strings as they're disruptive
// to the user experience.
//-----------------------------------------------------------------------------
static wchar_t *StripWhitespaceWorker( int cchLength, wchar_t *pwch, bool *pbStrippedWhitespace, bool bAggressive )
{
// walk backwards from the end of the string, killing any whitespace
*pbStrippedWhitespace = false;
wchar_t *pwchEnd = pwch + cchLength;
while ( --pwchEnd >= pwch )
{
if ( !iswspace( *pwchEnd ) && ( !bAggressive || !Q_IsMeanSpaceW( *pwchEnd ) ) )
break;
*pwchEnd = 0;
*pbStrippedWhitespace = true;
}
// walk forward in the string
while ( pwch < pwchEnd )
{
if ( !iswspace( *pwch ) )
break;
*pbStrippedWhitespace = true;
pwch++;
}
return pwch;
}
//-----------------------------------------------------------------------------
// Purpose: Strips all evil characters (ie. zero-width no-break space)
// from a string.
//-----------------------------------------------------------------------------
bool Q_RemoveAllEvilCharacters( char *pch )
{
// convert to unicode
int cch = Q_strlen( pch );
int cubDest = (cch + 1 ) * sizeof( wchar_t );
wchar_t *pwch = (wchar_t *)stackalloc( cubDest );
int cwch = Q_UTF8ToUnicode( pch, pwch, cubDest ) / sizeof( wchar_t );
bool bStrippedWhitespace = false;
// Walk through and skip over evil characters
int nWalk = 0;
for( int i=0; i<cwch; ++i )
{
if( !Q_IsMeanSpaceW( pwch[i] ) )
{
pwch[nWalk] = pwch[i];
++nWalk;
}
else
{
bStrippedWhitespace = true;
}
}
// Null terminate
pwch[nWalk-1] = L'\0';
// copy back, if necessary
if ( bStrippedWhitespace )
{
Q_UnicodeToUTF8( pwch, pch, cch );
}
return bStrippedWhitespace;
}
//-----------------------------------------------------------------------------
// Purpose: strips leading and trailing whitespace
//-----------------------------------------------------------------------------
bool Q_StripPrecedingAndTrailingWhitespaceW( wchar_t *pwch )
{
int cch = Q_wcslen( pwch );
// Early out and don't convert if we don't have any chars or leading/trailing ws.
if ( ( cch < 1 ) || ( !iswspace( pwch[ 0 ] ) && !iswspace( pwch[ cch - 1 ] ) ) )
return false;
// duplicate on stack
int cubDest = ( cch + 1 ) * sizeof( wchar_t );
wchar_t *pwchT = (wchar_t *)stackalloc( cubDest );
Q_wcsncpy( pwchT, pwch, cubDest );
bool bStrippedWhitespace = false;
pwchT = StripWhitespaceWorker( cch, pwch, &bStrippedWhitespace, false /* not aggressive */ );
// copy back, if necessary
if ( bStrippedWhitespace )
{
Q_wcsncpy( pwch, pwchT, cubDest );
}
return bStrippedWhitespace;
}
//-----------------------------------------------------------------------------
// Purpose: strips leading and trailing whitespace,
// and also strips punctuation and formatting characters with "clear"
// representations.
//-----------------------------------------------------------------------------
bool Q_AggressiveStripPrecedingAndTrailingWhitespaceW( wchar_t *pwch )
{
// duplicate on stack
int cch = Q_wcslen( pwch );
int cubDest = ( cch + 1 ) * sizeof( wchar_t );
wchar_t *pwchT = (wchar_t *)stackalloc( cubDest );
Q_wcsncpy( pwchT, pwch, cubDest );
bool bStrippedWhitespace = false;
pwchT = StripWhitespaceWorker( cch, pwch, &bStrippedWhitespace, true /* is aggressive */ );
// copy back, if necessary
if ( bStrippedWhitespace )
{
Q_wcsncpy( pwch, pwchT, cubDest );
}
return bStrippedWhitespace;
}
//-----------------------------------------------------------------------------
// Purpose: strips leading and trailing whitespace
//-----------------------------------------------------------------------------
bool Q_StripPrecedingAndTrailingWhitespace( char *pch )
{
int cch = Q_strlen( pch );
// Early out and don't convert if we don't have any chars or leading/trailing ws.
if ( ( cch < 1 ) || ( !isspace( (unsigned char)pch[ 0 ] ) && !isspace( (unsigned char)pch[ cch - 1 ] ) ) )
return false;
// convert to unicode
int cubDest = (cch + 1 ) * sizeof( wchar_t );
wchar_t *pwch = (wchar_t *)stackalloc( cubDest );
int cwch = Q_UTF8ToUnicode( pch, pwch, cubDest ) / sizeof( wchar_t );
bool bStrippedWhitespace = false;
pwch = StripWhitespaceWorker( cwch-1, pwch, &bStrippedWhitespace, false /* not aggressive */ );
// copy back, if necessary
if ( bStrippedWhitespace )
{
Q_UnicodeToUTF8( pwch, pch, cch );
}
return bStrippedWhitespace;
}
//-----------------------------------------------------------------------------
// Purpose: strips leading and trailing whitespace
//-----------------------------------------------------------------------------
bool Q_AggressiveStripPrecedingAndTrailingWhitespace( char *pch )
{
// convert to unicode
int cch = Q_strlen( pch );
int cubDest = (cch + 1 ) * sizeof( wchar_t );
wchar_t *pwch = (wchar_t *)stackalloc( cubDest );
int cwch = Q_UTF8ToUnicode( pch, pwch, cubDest ) / sizeof( wchar_t );
bool bStrippedWhitespace = false;
pwch = StripWhitespaceWorker( cwch-1, pwch, &bStrippedWhitespace, true /* is aggressive */ );
// copy back, if necessary
if ( bStrippedWhitespace )
{
Q_UnicodeToUTF8( pwch, pch, cch );
}
return bStrippedWhitespace;
}
//-----------------------------------------------------------------------------
// Purpose: Converts a ucs2 string to a unicode (wchar_t) one, no-op on win32
//-----------------------------------------------------------------------------
int _V_UCS2ToUnicode( const ucs2 *pUCS2, wchar_t *pUnicode, int cubDestSizeInBytes )
{
Assert( cubDestSizeInBytes >= sizeof( *pUnicode ) );
AssertValidWritePtr(pUnicode);
AssertValidReadPtr(pUCS2);
pUnicode[0] = 0;
#ifdef _WIN32
int cchResult = V_wcslen( pUCS2 );
V_memcpy( pUnicode, pUCS2, cubDestSizeInBytes );
#else
iconv_t conv_t = iconv_open( "UCS-4LE", "UCS-2LE" );
int cchResult = -1;
size_t nLenUnicde = cubDestSizeInBytes;
size_t nMaxUTF8 = cubDestSizeInBytes;
char *pIn = (char *)pUCS2;
char *pOut = (char *)pUnicode;
if ( conv_t > (void*)0 )
{
cchResult = iconv( conv_t, &pIn, &nLenUnicde, &pOut, &nMaxUTF8 );
iconv_close( conv_t );
if ( (int)cchResult < 0 )
cchResult = 0;
else
cchResult = nMaxUTF8;
}
#endif
pUnicode[(cubDestSizeInBytes / sizeof(wchar_t)) - 1] = 0;
return cchResult;
}
#ifdef _PREFAST_
#pragma warning( pop ) // Restore the /analyze warnings
#endif
//-----------------------------------------------------------------------------
// Purpose: Converts a wchar_t string into a UCS2 string -noop on windows
//-----------------------------------------------------------------------------
int _V_UnicodeToUCS2( const wchar_t *pUnicode, int cubSrcInBytes, char *pUCS2, int cubDestSizeInBytes )
{
#ifdef _WIN32
// Figure out which buffer is smaller and convert from bytes to character
// counts.
int cchResult = min( (size_t)cubSrcInBytes/sizeof(wchar_t), cubDestSizeInBytes/sizeof(wchar_t) );
wchar_t *pDest = (wchar_t*)pUCS2;
wcsncpy( pDest, pUnicode, cchResult );
// Make sure we NULL-terminate.
pDest[ cchResult - 1 ] = 0;
#elif defined (POSIX)
iconv_t conv_t = iconv_open( "UCS-2LE", "UTF-32LE" );
size_t cchResult = -1;
size_t nLenUnicde = cubSrcInBytes;
size_t nMaxUCS2 = cubDestSizeInBytes;
char *pIn = (char*)pUnicode;
char *pOut = pUCS2;
if ( conv_t > (void*)0 )
{
cchResult = iconv( conv_t, &pIn, &nLenUnicde, &pOut, &nMaxUCS2 );
iconv_close( conv_t );
if ( (int)cchResult < 0 )
cchResult = 0;
else
cchResult = cubSrcInBytes / sizeof( wchar_t );
}
#else
#error Must be implemented for this platform
#endif
return cchResult;
}
//-----------------------------------------------------------------------------
// Purpose: Converts a ucs-2 (windows wchar_t) string into a UTF8 (standard) string
//-----------------------------------------------------------------------------
int _V_UCS2ToUTF8( const ucs2 *pUCS2, char *pUTF8, int cubDestSizeInBytes )
{
AssertValidStringPtr(pUTF8, cubDestSizeInBytes);
AssertValidReadPtr(pUCS2);
pUTF8[0] = 0;
#ifdef _WIN32
// under win32 wchar_t == ucs2, sigh
int cchResult = WideCharToMultiByte( CP_UTF8, 0, pUCS2, -1, pUTF8, cubDestSizeInBytes, NULL, NULL );
#elif defined(POSIX)
iconv_t conv_t = iconv_open( "UTF-8", "UCS-2LE" );
size_t cchResult = -1;
// pUCS2 will be null-terminated so use that to work out the input
// buffer size. Note that we shouldn't assume iconv will stop when it
// finds a zero, and nLenUnicde should be given in bytes, so we multiply
// it by sizeof( ucs2 ) at the end.
size_t nLenUnicde = 0;
while ( pUCS2[nLenUnicde] )
{
++nLenUnicde;
}
nLenUnicde *= sizeof( ucs2 );
// Calculate number of bytes we want iconv to write, leaving space
// for the null-terminator
size_t nMaxUTF8 = cubDestSizeInBytes - 1;
char *pIn = (char *)pUCS2;
char *pOut = (char *)pUTF8;
if ( conv_t > (void*)0 )
{
const size_t nBytesToWrite = nMaxUTF8;
cchResult = iconv( conv_t, &pIn, &nLenUnicde, &pOut, &nMaxUTF8 );
// Calculate how many bytes were actually written and use that to
// null-terminate our output string.
const size_t nBytesWritten = nBytesToWrite - nMaxUTF8;
pUTF8[nBytesWritten] = 0;
iconv_close( conv_t );
if ( (int)cchResult < 0 )
cchResult = 0;
else
cchResult = nMaxUTF8;
}
#endif
pUTF8[cubDestSizeInBytes - 1] = 0;
return cchResult;
}
//-----------------------------------------------------------------------------
// Purpose: Converts a UTF8 to ucs-2 (windows wchar_t)
//-----------------------------------------------------------------------------
int _V_UTF8ToUCS2( const char *pUTF8, int cubSrcInBytes, ucs2 *pUCS2, int cubDestSizeInBytes )
{
Assert( cubDestSizeInBytes >= sizeof(pUCS2[0]) );
AssertValidStringPtr(pUTF8, cubDestSizeInBytes);
AssertValidReadPtr(pUCS2);
pUCS2[0] = 0;
#ifdef _WIN32
// under win32 wchar_t == ucs2, sigh
int cchResult = MultiByteToWideChar( CP_UTF8, 0, pUTF8, -1, pUCS2, cubDestSizeInBytes / sizeof(wchar_t) );
#elif defined( _PS3 ) // bugbug JLB
int cchResult = 0;
Assert( 0 );
#elif defined(POSIX)
iconv_t conv_t = iconv_open( "UCS-2LE", "UTF-8" );
size_t cchResult = -1;
size_t nLenUnicde = cubSrcInBytes;
size_t nMaxUTF8 = cubDestSizeInBytes;
char *pIn = (char *)pUTF8;
char *pOut = (char *)pUCS2;
if ( conv_t > (void*)0 )
{
cchResult = iconv( conv_t, &pIn, &nLenUnicde, &pOut, &nMaxUTF8 );
iconv_close( conv_t );
if ( (int)cchResult < 0 )
cchResult = 0;
else
cchResult = cubSrcInBytes;
}
#endif
pUCS2[ (cubDestSizeInBytes/sizeof(ucs2)) - 1] = 0;
return cchResult;
}
//-----------------------------------------------------------------------------
// Purpose: Returns the 4 bit nibble for a hex character
// Input : c -
// Output : unsigned char
//-----------------------------------------------------------------------------
unsigned char V_nibble( char c )
{
if ( ( c >= '0' ) &&
( c <= '9' ) )
{
return (unsigned char)(c - '0');
}
if ( ( c >= 'A' ) &&
( c <= 'F' ) )
{
return (unsigned char)(c - 'A' + 0x0a);
}
if ( ( c >= 'a' ) &&
( c <= 'f' ) )
{
return (unsigned char)(c - 'a' + 0x0a);
}
return '0';
}
//-----------------------------------------------------------------------------
// Purpose:
// Input : *in -
// numchars -
// *out -
// maxoutputbytes -
//-----------------------------------------------------------------------------
void V_hextobinary( char const *in, int numchars, byte *out, int maxoutputbytes )
{
int len = V_strlen( in );
numchars = min( len, numchars );
// Make sure it's even
numchars = ( numchars ) & ~0x1;
// Must be an even # of input characters (two chars per output byte)
Assert( numchars >= 2 );
memset( out, 0x00, maxoutputbytes );
byte *p;
int i;
p = out;
for ( i = 0;
( i < numchars ) && ( ( p - out ) < maxoutputbytes );
i+=2, p++ )
{
*p = ( V_nibble( in[i] ) << 4 ) | V_nibble( in[i+1] );
}
}
//-----------------------------------------------------------------------------
// Purpose:
// Input : *in -
// inputbytes -
// *out -
// outsize -
//-----------------------------------------------------------------------------
void V_binarytohex( const byte *in, int inputbytes, char *out, int outsize )
{
Assert( outsize >= 1 );
char doublet[10];
int i;
out[0]=0;
for ( i = 0; i < inputbytes; i++ )
{
unsigned char c = in[i];
V_snprintf( doublet, sizeof( doublet ), "%02x", c );
V_strncat( out, doublet, outsize, COPY_ALL_CHARACTERS );
}
}
// Even though \ on Posix (Linux&Mac) isn't techincally a path separator we are
// now counting it as one even Posix since so many times our filepaths aren't actual
// paths but rather text strings passed in from data files, treating \ as a pathseparator
// covers the full range of cases
bool PATHSEPARATOR( char c )
{
return c == '\\' || c == '/';
}
//-----------------------------------------------------------------------------
// Purpose: Extracts the base name of a file (no path, no extension, assumes '/' or '\' as path separator)
// Input : *in -
// *out -
// maxlen -
//-----------------------------------------------------------------------------
void V_FileBase( const char *in, char *out, int maxlen )
{
Assert( maxlen >= 1 );
Assert( in );
Assert( out );
if ( !in || !in[ 0 ] )
{
*out = 0;
return;
}
int len, start, end;
len = V_strlen( in );
// scan backward for '.'
end = len - 1;
while ( end&& in[end] != '.' && !PATHSEPARATOR( in[end] ) )
{
end--;
}
if ( in[end] != '.' ) // no '.', copy to end
{
end = len-1;
}
else
{
end--; // Found ',', copy to left of '.'
}
// Scan backward for '/'
start = len-1;
while ( start >= 0 && !PATHSEPARATOR( in[start] ) )
{
start--;
}
if ( start < 0 || !PATHSEPARATOR( in[start] ) )
{
start = 0;
}
else
{
start++;
}
// Length of new sting
len = end - start + 1;
int maxcopy = min( len + 1, maxlen );
// Copy partial string
V_strncpy( out, &in[start], maxcopy );
}
//-----------------------------------------------------------------------------
// Purpose:
// Input : *ppath -
//-----------------------------------------------------------------------------
void V_StripTrailingSlash( char *ppath )
{
Assert( ppath );
int len = V_strlen( ppath );
if ( len > 0 )
{
if ( PATHSEPARATOR( ppath[ len - 1 ] ) )
{
ppath[ len - 1 ] = 0;
}
}
}
//-----------------------------------------------------------------------------
// Purpose:
// Input : *ppline -
//-----------------------------------------------------------------------------
void V_StripTrailingWhitespace( char *ppline )
{
Assert( ppline );
int len = V_strlen( ppline );
while ( len > 0 )
{
if ( !V_isspace( ppline[ len - 1 ] ) )
break;
ppline[ len - 1 ] = 0;
len--;
}
}
//-----------------------------------------------------------------------------
// Purpose:
// Input : *ppline -
//-----------------------------------------------------------------------------
void V_StripLeadingWhitespace( char *ppline )
{
Assert( ppline );
// Skip past initial whitespace
int skip = 0;
while( V_isspace( ppline[ skip ] ) )
skip++;
// Shuffle the rest of the string back (including the NULL-terminator)
if ( skip )
{
while( ( ppline[0] = ppline[skip] ) != 0 )
ppline++;
}
}
//-----------------------------------------------------------------------------
// Purpose:
// Input : *ppline -
//-----------------------------------------------------------------------------
void V_StripSurroundingQuotes( char *ppline )
{
Assert( ppline );
int len = V_strlen( ppline ) - 2;
if ( ( ppline[0] == '"' ) && ( len >= 0 ) && ( ppline[len+1] == '"' ) )
{
for ( int i = 0; i < len; i++ )
ppline[i] = ppline[i+1];
ppline[len] = 0;
}
}
//-----------------------------------------------------------------------------
// Purpose:
// Input : *in -
// *out -
// outSize -
//-----------------------------------------------------------------------------
void V_StripExtension( const char *in, char *out, int outSize )
{
// Find the last dot. If it's followed by a dot or a slash, then it's part of a
// directory specifier like ../../somedir/./blah.
// scan backward for '.'
int end = V_strlen( in ) - 1;
while ( end > 0 && in[end] != '.' && !PATHSEPARATOR( in[end] ) )
{
--end;
}
if (end > 0 && !PATHSEPARATOR( in[end] ) && end < outSize)
{
int nChars = min( end, outSize-1 );
if ( out != in )
{
memcpy( out, in, nChars );
}
out[nChars] = 0;
}
else
{
// nothing found
if ( out != in )
{
V_strncpy( out, in, outSize );
}
}
}
//-----------------------------------------------------------------------------
// Purpose:
// Input : *path -
// *extension -
// pathStringLength -
//-----------------------------------------------------------------------------
void V_DefaultExtension( char *path, const char *extension, int pathStringLength )
{
Assert( path );
Assert( pathStringLength >= 1 );
Assert( extension );
Assert( extension[0] == '.' );
char *src;
// if path doesn't have a .EXT, append extension
// (extension should include the .)
src = path + V_strlen(path) - 1;
while ( !PATHSEPARATOR( *src ) && ( src > path ) )
{
if (*src == '.')
{
// it has an extension
return;
}
src--;
}
// Concatenate the desired extension
V_strncat( path, extension, pathStringLength, COPY_ALL_CHARACTERS );
}
//-----------------------------------------------------------------------------
// Purpose: Force extension...
// Input : *path -
// *extension -
// pathStringLength -
//-----------------------------------------------------------------------------
void V_SetExtension( char *path, const char *extension, int pathStringLength )
{
V_StripExtension( path, path, pathStringLength );
// We either had an extension and stripped it, or didn't have an extension
// at all. Either way, we need to concatenate our extension now.
// extension is not required to start with '.', so if it's not there,
// then append that first.
if ( extension[0] != '.' )
{
V_strncat( path, ".", pathStringLength, COPY_ALL_CHARACTERS );
}
V_strncat( path, extension, pathStringLength, COPY_ALL_CHARACTERS );
}
//-----------------------------------------------------------------------------
// Purpose: Remove final filename from string
// Input : *path -
// Output : void V_StripFilename
//-----------------------------------------------------------------------------
void V_StripFilename (char *path)
{
int length;
length = V_strlen( path )-1;
if ( length <= 0 )
return;
while ( length > 0 &&
!PATHSEPARATOR( path[length] ) )
{
length--;
}
path[ length ] = 0;
}
#ifdef _WIN32
#define CORRECT_PATH_SEPARATOR '\\'
#define INCORRECT_PATH_SEPARATOR '/'
#elif POSIX
#define CORRECT_PATH_SEPARATOR '/'
#define INCORRECT_PATH_SEPARATOR '\\'
#endif
//-----------------------------------------------------------------------------
// Purpose: Changes all '/' or '\' characters into separator
// Input : *pname -
// separator -
//-----------------------------------------------------------------------------
void V_FixSlashes( char *pname, char separator /* = CORRECT_PATH_SEPARATOR */ )
{
while ( *pname )
{
if ( *pname == INCORRECT_PATH_SEPARATOR || *pname == CORRECT_PATH_SEPARATOR )
{
*pname = separator;
}
pname++;
}
}
//-----------------------------------------------------------------------------
// Purpose: This function fixes cases of filenames like materials\\blah.vmt or somepath\otherpath\\ and removes the extra double slash.
//-----------------------------------------------------------------------------
void V_FixDoubleSlashes( char *pStr )
{
int len = V_strlen( pStr );
for ( int i=1; i < len-1; i++ )
{
if ( (pStr[i] == '/' || pStr[i] == '\\') && (pStr[i+1] == '/' || pStr[i+1] == '\\') )
{
// This means there's a double slash somewhere past the start of the filename. That
// can happen in Hammer if they use a material in the root directory. You'll get a filename
// that looks like 'materials\\blah.vmt'
V_memmove( &pStr[i], &pStr[i+1], len - i );
--len;
}
}
}
//-----------------------------------------------------------------------------
// Purpose: Strip off the last directory from dirName
// Input : *dirName -
// maxlen -
// Output : Returns true on success, false on failure.
//-----------------------------------------------------------------------------
bool V_StripLastDir( char *dirName, int maxlen )
{
if( dirName[0] == 0 ||
!V_stricmp( dirName, "./" ) ||
!V_stricmp( dirName, ".\\" ) )
return false;
int len = V_strlen( dirName );
Assert( len < maxlen );
// skip trailing slash
if ( PATHSEPARATOR( dirName[len-1] ) )
{
len--;
}
while ( len > 0 )
{
if ( PATHSEPARATOR( dirName[len-1] ) )
{
dirName[len] = 0;
V_FixSlashes( dirName, CORRECT_PATH_SEPARATOR );
return true;
}
len--;
}
// Allow it to return an empty string and true. This can happen if something like "tf2/" is passed in.
// The correct behavior is to strip off the last directory ("tf2") and return true.
if( len == 0 )
{
V_snprintf( dirName, maxlen, ".%c", CORRECT_PATH_SEPARATOR );
return true;
}
return true;
}
//-----------------------------------------------------------------------------
// Purpose: Returns a pointer to the beginning of the unqualified file name
// (no path information)
// Input: in - file name (may be unqualified, relative or absolute path)
// Output: pointer to unqualified file name
//-----------------------------------------------------------------------------
const char * V_UnqualifiedFileName( const char * in )
{
if( !in || !in[0] )
return in;
// back up until the character after the first path separator we find,
// or the beginning of the string
const char * out = in + strlen( in ) - 1;
while ( ( out > in ) && ( !PATHSEPARATOR( *( out-1 ) ) ) )
out--;
return out;
}
//-----------------------------------------------------------------------------
// Purpose: Composes a path and filename together, inserting a path separator
// if need be
// Input: path - path to use
// filename - filename to use
// dest - buffer to compose result in
// destSize - size of destination buffer
//-----------------------------------------------------------------------------
void V_ComposeFileName( const char *path, const char *filename, char *dest, int destSize )
{
V_strncpy( dest, path, destSize );
V_FixSlashes( dest );
V_AppendSlash( dest, destSize );
V_strncat( dest, filename, destSize, COPY_ALL_CHARACTERS );
V_FixSlashes( dest );
}
//-----------------------------------------------------------------------------
// Purpose:
// Input : *path -
// *dest -
// destSize -
// Output : void V_ExtractFilePath
//-----------------------------------------------------------------------------
bool V_ExtractFilePath (const char *path, char *dest, int destSize )
{
Assert( destSize >= 1 );
if ( destSize < 1 )
{
return false;
}
// Last char
int len = V_strlen(path);
const char *src = path + (len ? len-1 : 0);
// back up until a \ or the start
while ( src != path && !PATHSEPARATOR( *(src-1) ) )
{
src--;
}
int copysize = min( (int)((ptrdiff_t)src - (ptrdiff_t)path), destSize - 1 );
memcpy( dest, path, copysize );
dest[copysize] = 0;
return copysize != 0 ? true : false;
}
//-----------------------------------------------------------------------------
// Purpose:
// Input : *path -
// *dest -
// destSize -
// Output : void V_ExtractFileExtension
//-----------------------------------------------------------------------------
void V_ExtractFileExtension( const char *path, char *dest, int destSize )
{
*dest = NULL;
const char * extension = V_GetFileExtension( path );
if ( NULL != extension )
V_strncpy( dest, extension, destSize );
}
//-----------------------------------------------------------------------------
// Purpose: Returns a pointer to the file extension within a file name string
// Input: in - file name
// Output: pointer to beginning of extension (after the "."), or NULL
// if there is no extension
//-----------------------------------------------------------------------------
const char * V_GetFileExtension( const char * path )
{
const char *src;
src = path + strlen(path) - 1;
//
// back up until a . or the start
//
while (src != path && *(src-1) != '.' )
src--;
// check to see if the '.' is part of a pathname
if (src == path || PATHSEPARATOR( *src ) )
{
return NULL; // no extension
}
return src;
}
//-----------------------------------------------------------------------------
// Purpose: Returns a pointer to the filename part of a path string
// Input: in - file name
// Output: pointer to beginning of filename (after the "/"). If there were no /,
// output is identical to input
//-----------------------------------------------------------------------------
const char * V_GetFileName( const char * path )
{
return V_UnqualifiedFileName( path );
}
bool V_RemoveDotSlashes( char *pFilename, char separator, bool bRemoveDoubleSlashes /* = true */ )
{
char *pIn = pFilename;
char *pOut = pFilename;
bool bRetVal = true;
bool bBoundary = true;
while ( *pIn )
{
if ( bBoundary && pIn[0] == '.' && pIn[1] == '.' && ( PATHSEPARATOR( pIn[2] ) || !pIn[2] ) )
{
// Get rid of /../ or trailing /.. by backing pOut up to previous separator
// Eat the last separator (or repeated separators) we wrote out
while ( pOut != pFilename && pOut[-1] == separator )
{
--pOut;
}
while ( true )
{
if ( pOut == pFilename )
{
bRetVal = false; // backwards compat. return value, even though we continue handling
break;
}
--pOut;
if ( *pOut == separator )
{
break;
}
}
// Skip the '..' but not the slash, next loop iteration will handle separator
pIn += 2;
bBoundary = ( pOut == pFilename );
}
else if ( bBoundary && pIn[0] == '.' && ( PATHSEPARATOR( pIn[1] ) || !pIn[1] ) )
{
// Handle "./" by simply skipping this sequence. bBoundary is unchanged.
if ( PATHSEPARATOR( pIn[1] ) )
{
pIn += 2;
}
else
{
// Special case: if trailing "." is preceded by separator, eg "path/.",
// then the final separator should also be stripped. bBoundary may then
// be in an incorrect state, but we are at the end of processing anyway
// so we don't really care (the processing loop is about to terminate).
if ( pOut != pFilename && pOut[-1] == separator )
{
--pOut;
}
pIn += 1;
}
}
else if ( PATHSEPARATOR( pIn[0] ) )
{
*pOut = separator;
pOut += 1 - (bBoundary & bRemoveDoubleSlashes & (pOut != pFilename));
pIn += 1;
bBoundary = true;
}
else
{
if ( pOut != pIn )
{
*pOut = *pIn;
}
pOut += 1;
pIn += 1;
bBoundary = false;
}
}
*pOut = 0;
return bRetVal;
}
void V_AppendSlash( char *pStr, int strSize )
{
int len = V_strlen( pStr );
if ( len > 0 && !PATHSEPARATOR(pStr[len-1]) )
{
if ( len+1 >= strSize )
Error( "V_AppendSlash: ran out of space on %s.", pStr );
pStr[len] = CORRECT_PATH_SEPARATOR;
pStr[len+1] = 0;
}
}
void V_MakeAbsolutePath( char *pOut, int outLen, const char *pPath, const char *pStartingDir )
{
if ( V_IsAbsolutePath( pPath ) )
{
// pPath is not relative.. just copy it.
V_strncpy( pOut, pPath, outLen );
}
else
{
// Make sure the starting directory is absolute..
if ( pStartingDir && V_IsAbsolutePath( pStartingDir ) )
{
V_strncpy( pOut, pStartingDir, outLen );
}
else
{
if ( !_getcwd( pOut, outLen ) )
Error( "V_MakeAbsolutePath: _getcwd failed." );
if ( pStartingDir )
{
V_AppendSlash( pOut, outLen );
V_strncat( pOut, pStartingDir, outLen, COPY_ALL_CHARACTERS );
}
}
// Concatenate the paths.
V_AppendSlash( pOut, outLen );
V_strncat( pOut, pPath, outLen, COPY_ALL_CHARACTERS );
}
if ( !V_RemoveDotSlashes( pOut ) )
Error( "V_MakeAbsolutePath: tried to \"..\" past the root." );
//V_FixSlashes( pOut ); - handled by V_RemoveDotSlashes
}
//-----------------------------------------------------------------------------
// Makes a relative path
//-----------------------------------------------------------------------------
bool V_MakeRelativePath( const char *pFullPath, const char *pDirectory, char *pRelativePath, int nBufLen )
{
pRelativePath[0] = 0;
const char *pPath = pFullPath;
const char *pDir = pDirectory;
// Strip out common parts of the path
const char *pLastCommonPath = NULL;
const char *pLastCommonDir = NULL;
while ( *pPath && ( FastToLower( *pPath ) == FastToLower( *pDir ) ||
( PATHSEPARATOR( *pPath ) && ( PATHSEPARATOR( *pDir ) || (*pDir == 0) ) ) ) )
{
if ( PATHSEPARATOR( *pPath ) )
{
pLastCommonPath = pPath + 1;
pLastCommonDir = pDir + 1;
}
if ( *pDir == 0 )
{
--pLastCommonDir;
break;
}
++pDir; ++pPath;
}
// Nothing in common
if ( !pLastCommonPath )
return false;
// For each path separator remaining in the dir, need a ../
int nOutLen = 0;
bool bLastCharWasSeparator = true;
for ( ; *pLastCommonDir; ++pLastCommonDir )
{
if ( PATHSEPARATOR( *pLastCommonDir ) )
{
pRelativePath[nOutLen++] = '.';
pRelativePath[nOutLen++] = '.';
pRelativePath[nOutLen++] = CORRECT_PATH_SEPARATOR;
bLastCharWasSeparator = true;
}
else
{
bLastCharWasSeparator = false;
}
}
// Deal with relative paths not specified with a trailing slash
if ( !bLastCharWasSeparator )
{
pRelativePath[nOutLen++] = '.';
pRelativePath[nOutLen++] = '.';
pRelativePath[nOutLen++] = CORRECT_PATH_SEPARATOR;
}
// Copy the remaining part of the relative path over, fixing the path separators
for ( ; *pLastCommonPath; ++pLastCommonPath )
{
if ( PATHSEPARATOR( *pLastCommonPath ) )
{
pRelativePath[nOutLen++] = CORRECT_PATH_SEPARATOR;
}
else
{
pRelativePath[nOutLen++] = *pLastCommonPath;
}
// Check for overflow
if ( nOutLen == nBufLen - 1 )
break;
}
pRelativePath[nOutLen] = 0;
return true;
}
//-----------------------------------------------------------------------------
// small helper function shared by lots of modules
//-----------------------------------------------------------------------------
bool V_IsAbsolutePath( const char *pStr )
{
bool bIsAbsolute = ( pStr[0] && pStr[1] == ':' ) || pStr[0] == '/' || pStr[0] == '\\';
if ( IsX360() && !bIsAbsolute )
{
bIsAbsolute = ( V_stristr( pStr, ":" ) != NULL );
}
return bIsAbsolute;
}
// Copies at most nCharsToCopy bytes from pIn into pOut.
// Returns false if it would have overflowed pOut's buffer.
static bool CopyToMaxChars( char *pOut, int outSize, const char *pIn, int nCharsToCopy )
{
if ( outSize == 0 )
return false;
int iOut = 0;
while ( *pIn && nCharsToCopy > 0 )
{
if ( iOut == (outSize-1) )
{
pOut[iOut] = 0;
return false;
}
pOut[iOut] = *pIn;
++iOut;
++pIn;
--nCharsToCopy;
}
pOut[iOut] = 0;
return true;
}
//-----------------------------------------------------------------------------
// Fixes up a file name, removing dot slashes, fixing slashes, converting to lowercase, etc.
//-----------------------------------------------------------------------------
void V_FixupPathName( char *pOut, size_t nOutLen, const char *pPath )
{
V_strncpy( pOut, pPath, nOutLen );
V_RemoveDotSlashes( pOut, CORRECT_PATH_SEPARATOR, true );
#ifdef WIN32
V_strlower( pOut );
#endif
}
// Returns true if it completed successfully.
// If it would overflow pOut, it fills as much as it can and returns false.
bool V_StrSubst(
const char *pIn,
const char *pMatch,
const char *pReplaceWith,
char *pOut,
int outLen,
bool bCaseSensitive
)
{
int replaceFromLen = strlen( pMatch );
int replaceToLen = strlen( pReplaceWith );
const char *pInStart = pIn;
char *pOutPos = pOut;
pOutPos[0] = 0;
while ( 1 )
{
int nRemainingOut = outLen - (pOutPos - pOut);
const char *pTestPos = ( bCaseSensitive ? strstr( pInStart, pMatch ) : V_stristr( pInStart, pMatch ) );
if ( pTestPos )
{
// Found an occurence of pMatch. First, copy whatever leads up to the string.
int copyLen = pTestPos - pInStart;
if ( !CopyToMaxChars( pOutPos, nRemainingOut, pInStart, copyLen ) )
return false;
// Did we hit the end of the output string?
if ( copyLen > nRemainingOut-1 )
return false;
pOutPos += strlen( pOutPos );
nRemainingOut = outLen - (pOutPos - pOut);
// Now add the replacement string.
if ( !CopyToMaxChars( pOutPos, nRemainingOut, pReplaceWith, replaceToLen ) )
return false;
pInStart += copyLen + replaceFromLen;
pOutPos += replaceToLen;
}
else
{
// We're at the end of pIn. Copy whatever remains and get out.
int copyLen = strlen( pInStart );
V_strncpy( pOutPos, pInStart, nRemainingOut );
return ( copyLen <= nRemainingOut-1 );
}
}
}
char* AllocString( const char *pStr, int nMaxChars )
{
int allocLen;
if ( nMaxChars == -1 )
allocLen = strlen( pStr ) + 1;
else
allocLen = min( (int)strlen(pStr), nMaxChars ) + 1;
char *pOut = new char[allocLen];
V_strncpy( pOut, pStr, allocLen );
return pOut;
}
void V_SplitString2( const char *pString, const char **pSeparators, int nSeparators, CUtlVector<char*> &outStrings )
{
outStrings.Purge();
const char *pCurPos = pString;
while ( 1 )
{
int iFirstSeparator = -1;
const char *pFirstSeparator = 0;
for ( int i=0; i < nSeparators; i++ )
{
const char *pTest = V_stristr( pCurPos, pSeparators[i] );
if ( pTest && (!pFirstSeparator || pTest < pFirstSeparator) )
{
iFirstSeparator = i;
pFirstSeparator = pTest;
}
}
if ( pFirstSeparator )
{
// Split on this separator and continue on.
int separatorLen = strlen( pSeparators[iFirstSeparator] );
if ( pFirstSeparator > pCurPos )
{
outStrings.AddToTail( AllocString( pCurPos, pFirstSeparator-pCurPos ) );
}
pCurPos = pFirstSeparator + separatorLen;
}
else
{
// Copy the rest of the string
if ( strlen( pCurPos ) )
{
outStrings.AddToTail( AllocString( pCurPos, -1 ) );
}
return;
}
}
}
void V_SplitString( const char *pString, const char *pSeparator, CUtlVector<char*> &outStrings )
{
V_SplitString2( pString, &pSeparator, 1, outStrings );
}
bool V_GetCurrentDirectory( char *pOut, int maxLen )
{
return _getcwd( pOut, maxLen ) == pOut;
}
bool V_SetCurrentDirectory( const char *pDirName )
{
return _chdir( pDirName ) == 0;
}
// This function takes a slice out of pStr and stores it in pOut.
// It follows the Python slice convention:
// Negative numbers wrap around the string (-1 references the last character).
// Numbers are clamped to the end of the string.
void V_StrSlice( const char *pStr, int firstChar, int lastCharNonInclusive, char *pOut, int outSize )
{
if ( outSize == 0 )
return;
int length = strlen( pStr );
// Fixup the string indices.
if ( firstChar < 0 )
{
firstChar = length - (-firstChar % length);
}
else if ( firstChar >= length )
{
pOut[0] = 0;
return;
}
if ( lastCharNonInclusive < 0 )
{
lastCharNonInclusive = length - (-lastCharNonInclusive % length);
}
else if ( lastCharNonInclusive > length )
{
lastCharNonInclusive %= length;
}
if ( lastCharNonInclusive <= firstChar )
{
pOut[0] = 0;
return;
}
int copyLen = lastCharNonInclusive - firstChar;
if ( copyLen <= (outSize-1) )
{
memcpy( pOut, &pStr[firstChar], copyLen );
pOut[copyLen] = 0;
}
else
{
memcpy( pOut, &pStr[firstChar], outSize-1 );
pOut[outSize-1] = 0;
}
}
void V_StrLeft( const char *pStr, int nChars, char *pOut, int outSize )
{
if ( nChars == 0 )
{
if ( outSize != 0 )
pOut[0] = 0;
return;
}
V_StrSlice( pStr, 0, nChars, pOut, outSize );
}
void V_StrRight( const char *pStr, int nChars, char *pOut, int outSize )
{
int len = strlen( pStr );
if ( nChars >= len )
{
V_strncpy( pOut, pStr, outSize );
}
else
{
V_StrSlice( pStr, -nChars, strlen( pStr ), pOut, outSize );
}
}
//-----------------------------------------------------------------------------
// Convert multibyte to wchar + back
//-----------------------------------------------------------------------------
void V_strtowcs( const char *pString, int nInSize, wchar_t *pWString, int nOutSizeInBytes )
{
Assert( nOutSizeInBytes >= sizeof(pWString[0]) );
#ifdef _WIN32
int nOutSizeInChars = nOutSizeInBytes / sizeof(pWString[0]);
int result = MultiByteToWideChar( CP_UTF8, 0, pString, nInSize, pWString, nOutSizeInChars );
// If the string completely fails to fit then MultiByteToWideChar will return 0.
// If the string exactly fits but with no room for a null-terminator then MultiByteToWideChar
// will happily fill the buffer and omit the null-terminator, returning nOutSizeInChars.
// Either way we need to return an empty string rather than a bogus and possibly not
// null-terminated result.
if ( result <= 0 || result >= nOutSizeInChars )
{
// If nInSize includes the null-terminator then a result of nOutSizeInChars is
// legal. We check this by seeing if the last character in the output buffer is
// a zero.
if ( result == nOutSizeInChars && pWString[ nOutSizeInChars - 1 ] == 0)
{
// We're okay! Do nothing.
}
else
{
// The string completely to fit. Null-terminate the buffer.
*pWString = L'\0';
}
}
else
{
// We have successfully converted our string. Now we need to null-terminate it, because
// MultiByteToWideChar will only do that if nInSize includes the source null-terminator!
pWString[ result ] = 0;
}
#elif POSIX
if ( mbstowcs( pWString, pString, nOutSizeInBytes / sizeof(pWString[0]) ) <= 0 )
{
*pWString = 0;
}
#endif
}
void V_wcstostr( const wchar_t *pWString, int nInSize, char *pString, int nOutSizeInChars )
{
#ifdef _WIN32
int result = WideCharToMultiByte( CP_UTF8, 0, pWString, nInSize, pString, nOutSizeInChars, NULL, NULL );
// If the string completely fails to fit then MultiByteToWideChar will return 0.
// If the string exactly fits but with no room for a null-terminator then MultiByteToWideChar
// will happily fill the buffer and omit the null-terminator, returning nOutSizeInChars.
// Either way we need to return an empty string rather than a bogus and possibly not
// null-terminated result.
if ( result <= 0 || result >= nOutSizeInChars )
{
// If nInSize includes the null-terminator then a result of nOutSizeInChars is
// legal. We check this by seeing if the last character in the output buffer is
// a zero.
if ( result == nOutSizeInChars && pWString[ nOutSizeInChars - 1 ] == 0)
{
// We're okay! Do nothing.
}
else
{
*pString = '\0';
}
}
else
{
// We have successfully converted our string. Now we need to null-terminate it, because
// MultiByteToWideChar will only do that if nInSize includes the source null-terminator!
pString[ result ] = '\0';
}
#elif POSIX
if ( wcstombs( pString, pWString, nOutSizeInChars ) <= 0 )
{
*pString = '\0';
}
#endif
}
//--------------------------------------------------------------------------------
// backslashification
//--------------------------------------------------------------------------------
static char s_BackSlashMap[]="\tt\nn\rr\"\"\\\\";
char *V_AddBackSlashesToSpecialChars( char const *pSrc )
{
// first, count how much space we are going to need
int nSpaceNeeded = 0;
for( char const *pScan = pSrc; *pScan; pScan++ )
{
nSpaceNeeded++;
for(char const *pCharSet=s_BackSlashMap; *pCharSet; pCharSet += 2 )
{
if ( *pCharSet == *pScan )
nSpaceNeeded++; // we need to store a bakslash
}
}
char *pRet = new char[ nSpaceNeeded + 1 ]; // +1 for null
char *pOut = pRet;
for( char const *pScan = pSrc; *pScan; pScan++ )
{
bool bIsSpecial = false;
for(char const *pCharSet=s_BackSlashMap; *pCharSet; pCharSet += 2 )
{
if ( *pCharSet == *pScan )
{
*( pOut++ ) = '\\';
*( pOut++ ) = pCharSet[1];
bIsSpecial = true;
break;
}
}
if (! bIsSpecial )
{
*( pOut++ ) = *pScan;
}
}
*( pOut++ ) = 0;
return pRet;
}
//-----------------------------------------------------------------------------
// Purpose: Helper for converting a numeric value to a hex digit, value should be 0-15.
//-----------------------------------------------------------------------------
char cIntToHexDigit( int nValue )
{
Assert( nValue >= 0 && nValue <= 15 );
return "0123456789ABCDEF"[ nValue & 15 ];
}
//-----------------------------------------------------------------------------
// Purpose: Helper for converting a hex char value to numeric, return -1 if the char
// is not a valid hex digit.
//-----------------------------------------------------------------------------
int iHexCharToInt( char cValue )
{
int32 iValue = cValue;
if ( (uint32)( iValue - '0' ) < 10 )
return iValue - '0';
iValue |= 0x20;
if ( (uint32)( iValue - 'a' ) < 6 )
return iValue - 'a' + 10;
return -1;
}
//-----------------------------------------------------------------------------
// Purpose: Internal implementation of encode, works in the strict RFC manner, or
// with spaces turned to + like HTML form encoding.
//-----------------------------------------------------------------------------
void Q_URLEncodeInternal( char *pchDest, int nDestLen, const char *pchSource, int nSourceLen, bool bUsePlusForSpace )
{
if ( nDestLen < 3*nSourceLen )
{
pchDest[0] = '\0';
AssertMsg( false, "Target buffer for Q_URLEncode needs to be 3 times larger than source to guarantee enough space\n" );
return;
}
int iDestPos = 0;
for ( int i=0; i < nSourceLen; ++i )
{
// We allow only a-z, A-Z, 0-9, period, underscore, and hyphen to pass through unescaped.
// These are the characters allowed by both the original RFC 1738 and the latest RFC 3986.
// Current specs also allow '~', but that is forbidden under original RFC 1738.
if ( !( pchSource[i] >= 'a' && pchSource[i] <= 'z' ) && !( pchSource[i] >= 'A' && pchSource[i] <= 'Z' ) && !(pchSource[i] >= '0' && pchSource[i] <= '9' )
&& pchSource[i] != '-' && pchSource[i] != '_' && pchSource[i] != '.'
)
{
if ( bUsePlusForSpace && pchSource[i] == ' ' )
{
pchDest[iDestPos++] = '+';
}
else
{
pchDest[iDestPos++] = '%';
uint8 iValue = pchSource[i];
if ( iValue == 0 )
{
pchDest[iDestPos++] = '0';
pchDest[iDestPos++] = '0';
}
else
{
char cHexDigit1 = cIntToHexDigit( iValue % 16 );
iValue /= 16;
char cHexDigit2 = cIntToHexDigit( iValue );
pchDest[iDestPos++] = cHexDigit2;
pchDest[iDestPos++] = cHexDigit1;
}
}
}
else
{
pchDest[iDestPos++] = pchSource[i];
}
}
// Null terminate
pchDest[iDestPos++] = 0;
}
//-----------------------------------------------------------------------------
// Purpose: Internal implementation of decode, works in the strict RFC manner, or
// with spaces turned to + like HTML form encoding.
//
// Returns the amount of space used in the output buffer.
//-----------------------------------------------------------------------------
size_t Q_URLDecodeInternal( char *pchDecodeDest, int nDecodeDestLen, const char *pchEncodedSource, int nEncodedSourceLen, bool bUsePlusForSpace )
{
if ( nDecodeDestLen < nEncodedSourceLen )
{
AssertMsg( false, "Q_URLDecode needs a dest buffer at least as large as the source" );
return 0;
}
int iDestPos = 0;
for( int i=0; i < nEncodedSourceLen; ++i )
{
if ( bUsePlusForSpace && pchEncodedSource[i] == '+' )
{
pchDecodeDest[ iDestPos++ ] = ' ';
}
else if ( pchEncodedSource[i] == '%' )
{
// Percent signifies an encoded value, look ahead for the hex code, convert to numeric, and use that
// First make sure we have 2 more chars
if ( i < nEncodedSourceLen - 2 )
{
char cHexDigit1 = pchEncodedSource[i+1];
char cHexDigit2 = pchEncodedSource[i+2];
// Turn the chars into a hex value, if they are not valid, then we'll
// just place the % and the following two chars direct into the string,
// even though this really shouldn't happen, who knows what bad clients
// may do with encoding.
bool bValid = false;
int iValue = iHexCharToInt( cHexDigit1 );
if ( iValue != -1 )
{
iValue *= 16;
int iValue2 = iHexCharToInt( cHexDigit2 );
if ( iValue2 != -1 )
{
iValue += iValue2;
pchDecodeDest[ iDestPos++ ] = iValue;
bValid = true;
}
}
if ( !bValid )
{
pchDecodeDest[ iDestPos++ ] = '%';
pchDecodeDest[ iDestPos++ ] = cHexDigit1;
pchDecodeDest[ iDestPos++ ] = cHexDigit2;
}
}
// Skip ahead
i += 2;
}
else
{
pchDecodeDest[ iDestPos++ ] = pchEncodedSource[i];
}
}
// We may not have extra room to NULL terminate, since this can be used on raw data, but if we do
// go ahead and do it as this can avoid bugs.
if ( iDestPos < nDecodeDestLen )
{
pchDecodeDest[iDestPos] = 0;
}
return (size_t)iDestPos;
}
//-----------------------------------------------------------------------------
// Purpose: Encodes a string (or binary data) from URL encoding format, see rfc1738 section 2.2.
// This version of the call isn't a strict RFC implementation, but uses + for space as is
// the standard in HTML form encoding, despite it not being part of the RFC.
//
// Dest buffer should be at least as large as source buffer to guarantee room for decode.
//-----------------------------------------------------------------------------
void Q_URLEncode( char *pchDest, int nDestLen, const char *pchSource, int nSourceLen )
{
return Q_URLEncodeInternal( pchDest, nDestLen, pchSource, nSourceLen, true );
}
//-----------------------------------------------------------------------------
// Purpose: Decodes a string (or binary data) from URL encoding format, see rfc1738 section 2.2.
// This version of the call isn't a strict RFC implementation, but uses + for space as is
// the standard in HTML form encoding, despite it not being part of the RFC.
//
// Dest buffer should be at least as large as source buffer to guarantee room for decode.
// Dest buffer being the same as the source buffer (decode in-place) is explicitly allowed.
//-----------------------------------------------------------------------------
size_t Q_URLDecode( char *pchDecodeDest, int nDecodeDestLen, const char *pchEncodedSource, int nEncodedSourceLen )
{
return Q_URLDecodeInternal( pchDecodeDest, nDecodeDestLen, pchEncodedSource, nEncodedSourceLen, true );
}
//-----------------------------------------------------------------------------
// Purpose: Encodes a string (or binary data) from URL encoding format, see rfc1738 section 2.2.
// This version will not encode space as + (which HTML form encoding uses despite not being part of the RFC)
//
// Dest buffer should be at least as large as source buffer to guarantee room for decode.
//-----------------------------------------------------------------------------
void Q_URLEncodeRaw( char *pchDest, int nDestLen, const char *pchSource, int nSourceLen )
{
return Q_URLEncodeInternal( pchDest, nDestLen, pchSource, nSourceLen, false );
}
//-----------------------------------------------------------------------------
// Purpose: Decodes a string (or binary data) from URL encoding format, see rfc1738 section 2.2.
// This version will not recognize + as a space (which HTML form encoding uses despite not being part of the RFC)
//
// Dest buffer should be at least as large as source buffer to guarantee room for decode.
// Dest buffer being the same as the source buffer (decode in-place) is explicitly allowed.
//-----------------------------------------------------------------------------
size_t Q_URLDecodeRaw( char *pchDecodeDest, int nDecodeDestLen, const char *pchEncodedSource, int nEncodedSourceLen )
{
return Q_URLDecodeInternal( pchDecodeDest, nDecodeDestLen, pchEncodedSource, nEncodedSourceLen, false );
}
#if defined( LINUX ) || defined( _PS3 )
extern "C" void qsort_s( void *base, size_t num, size_t width, int (*compare )(void *, const void *, const void *), void * context );
#endif
void V_qsort_s( void *base, size_t num, size_t width, int ( __cdecl *compare )(void *, const void *, const void *), void * context )
{
#if defined(OSX) || defined(PLATFORM_BSD)
// the arguments are swapped 'round on the mac - awesome, huh?
return qsort_r( base, num, width, context, compare );
#else
return qsort_s( base, num, width, compare, context );
#endif
}
//-----------------------------------------------------------------------------
// Purpose: format the time and/or date with the user's current locale
// If timeVal is 0, gets the current time
//
// This is generally for use with chatroom dialogs, etc. which need to be
// able to say "Last message received: %date% at %time%"
//
// Note that this uses time_t because RTime32 is not hooked-up on the client
//-----------------------------------------------------------------------------
bool BGetLocalFormattedDateAndTime( time_t timeVal, char *pchDate, int cubDate, char *pchTime, int cubTime )
{
if ( 0 == timeVal || timeVal < 0 )
{
// get the current time
time( &timeVal );
}
if ( timeVal )
{
// Convert it to our local time
struct tm tmStruct;
struct tm tmToDisplay = *( Plat_localtime( ( const time_t* )&timeVal, &tmStruct ) );
#ifdef POSIX
if ( pchDate != NULL )
{
pchDate[ 0 ] = 0;
if ( 0 == strftime( pchDate, cubDate, "%A %b %d", &tmToDisplay ) )
return false;
}
if ( pchTime != NULL )
{
pchTime[ 0 ] = 0;
if ( 0 == strftime( pchTime, cubTime - 6, "%I:%M ", &tmToDisplay ) )
return false;
// append am/pm in lower case (since strftime doesn't have a lowercase formatting option)
if (tmToDisplay.tm_hour >= 12)
{
Q_strcat( pchTime, "p.m.", cubTime );
}
else
{
Q_strcat( pchTime, "a.m.", cubTime );
}
}
#else // WINDOWS
// convert time_t to a SYSTEMTIME
SYSTEMTIME st;
st.wHour = tmToDisplay.tm_hour;
st.wMinute = tmToDisplay.tm_min;
st.wSecond = tmToDisplay.tm_sec;
st.wDay = tmToDisplay.tm_mday;
st.wMonth = tmToDisplay.tm_mon + 1;
st.wYear = tmToDisplay.tm_year + 1900;
st.wDayOfWeek = tmToDisplay.tm_wday;
st.wMilliseconds = 0;
WCHAR rgwch[ MAX_PATH ];
if ( pchDate != NULL )
{
pchDate[ 0 ] = 0;
if ( !GetDateFormatW( LOCALE_USER_DEFAULT, DATE_LONGDATE, &st, NULL, rgwch, MAX_PATH ) )
return false;
Q_strncpy( pchDate, CStrAutoEncode( rgwch ).ToString(), cubDate );
}
if ( pchTime != NULL )
{
pchTime[ 0 ] = 0;
if ( !GetTimeFormatW( LOCALE_USER_DEFAULT, TIME_NOSECONDS, &st, NULL, rgwch, MAX_PATH ) )
return false;
Q_strncpy( pchTime, CStrAutoEncode( rgwch ).ToString(), cubTime );
}
#endif
return true;
}
return false;
}
// And a couple of helpers so people don't have to remember the order of the parameters in the above function
bool BGetLocalFormattedDate( time_t timeVal, char *pchDate, int cubDate )
{
return BGetLocalFormattedDateAndTime( timeVal, pchDate, cubDate, NULL, 0 );
}
bool BGetLocalFormattedTime( time_t timeVal, char *pchTime, int cubTime )
{
return BGetLocalFormattedDateAndTime( timeVal, NULL, 0, pchTime, cubTime );
}
// Prints out a memory dump where stuff that's ascii is human readable, etc.
void V_LogMultiline( bool input, char const *label, const char *data, size_t len, CUtlString &output )
{
static const char HEX[] = "0123456789abcdef";
const char * direction = (input ? " << " : " >> ");
const size_t LINE_SIZE = 24;
char hex_line[LINE_SIZE * 9 / 4 + 2], asc_line[LINE_SIZE + 1];
while (len > 0)
{
V_memset(asc_line, ' ', sizeof(asc_line));
V_memset(hex_line, ' ', sizeof(hex_line));
size_t line_len = MIN(len, LINE_SIZE);
for (size_t i=0; i<line_len; ++i) {
unsigned char ch = static_cast<unsigned char>(data[i]);
asc_line[i] = ( V_isprint(ch) && !V_iscntrl(ch) ) ? data[i] : '.';
hex_line[i*2 + i/4] = HEX[ch >> 4];
hex_line[i*2 + i/4 + 1] = HEX[ch & 0xf];
}
asc_line[sizeof(asc_line)-1] = 0;
hex_line[sizeof(hex_line)-1] = 0;
output += CFmtStr( "%s %s %s %s\n", label, direction, asc_line, hex_line );
data += line_len;
len -= line_len;
}
}
#ifdef WIN32
// Win32 CRT doesn't support the full range of UChar32, has no extended planes
inline int V_iswspace( int c ) { return ( c <= 0xFFFF ) ? iswspace( (wint_t)c ) : 0; }
#else
#define V_iswspace(x) iswspace(x)
#endif
//-----------------------------------------------------------------------------
// Purpose: Slightly modified strtok. Does not modify the input string. Does
// not skip over more than one separator at a time. This allows parsing
// strings where tokens between separators may or may not be present:
//
// Door01,,,0 would be parsed as "Door01" "" "" "0"
// Door01,Open,,0 would be parsed as "Door01" "Open" "" "0"
//
// Input : token - Returns with a token, or zero length if the token was missing.
// str - String to parse.
// sep - Character to use as separator. UNDONE: allow multiple separator chars
// Output : Returns a pointer to the next token to be parsed.
//-----------------------------------------------------------------------------
const char *nexttoken(char *token, size_t nMaxTokenLen, const char *str, char sep)
{
if (nMaxTokenLen < 1)
{
Assert(nMaxTokenLen > 0);
return NULL;
}
if ((str == NULL) || (*str == '\0'))
{
*token = '\0';
return(NULL);
}
char *pTokenLast = token + nMaxTokenLen - 1;
//
// Copy everything up to the first separator into the return buffer.
// Do not include separators in the return buffer.
//
while ((*str != sep) && (*str != '\0') && (token < pTokenLast))
{
*token++ = *str++;
}
*token = '\0';
//
// Advance the pointer unless we hit the end of the input string.
//
if (*str == '\0')
{
return(str);
}
return(++str);
}
int V_StrTrim( char *pStr )
{
char *pSource = pStr;
char *pDest = pStr;
// skip white space at the beginning
while ( *pSource != 0 && V_isspace( *pSource ) )
{
pSource++;
}
// copy everything else
char *pLastWhiteBlock = NULL;
char *pStart = pDest;
while ( *pSource != 0 )
{
*pDest = *pSource++;
if ( V_isspace( *pDest ) )
{
if ( pLastWhiteBlock == NULL )
pLastWhiteBlock = pDest;
}
else
{
pLastWhiteBlock = NULL;
}
pDest++;
}
*pDest = 0;
// did we end in a whitespace block?
if ( pLastWhiteBlock != NULL )
{
// yep; shorten the string
pDest = pLastWhiteBlock;
*pLastWhiteBlock = 0;
}
return pDest - pStart;
}
#ifdef _WIN32
int64 V_strtoi64( const char *nptr, char **endptr, int base )
{
return _strtoi64( nptr, endptr, base );
}
uint64 V_strtoui64( const char *nptr, char **endptr, int base )
{
return _strtoui64( nptr, endptr, base );
}
#elif POSIX
int64 V_strtoi64( const char *nptr, char **endptr, int base )
{
return strtoll( nptr, endptr, base );
}
uint64 V_strtoui64( const char *nptr, char **endptr, int base )
{
return strtoull( nptr, endptr, base );
}
#endif
struct HtmlEntity_t
{
unsigned short uCharCode;
const char *pchEntity;
int nEntityLength;
};
const static HtmlEntity_t g_BasicHTMLEntities[] = {
{ '"', "&quot;", 6 },
{ '\'', "&#039;", 6 },
{ '<', "&lt;", 4 },
{ '>', "&gt;", 4 },
{ '&', "&amp;", 5 },
{ 0, NULL, 0 } // sentinel for end of array
};
const static HtmlEntity_t g_WhitespaceEntities[] = {
{ ' ', "&nbsp;", 6 },
{ '\n', "<br>", 4 },
{ 0, NULL, 0 } // sentinel for end of array
};
struct Tier1FullHTMLEntity_t
{
uchar32 uCharCode;
const char *pchEntity;
int nEntityLength;
};
#pragma warning( push )
#pragma warning( disable : 4428 ) // universal-character-name encountered in source
const Tier1FullHTMLEntity_t g_Tier1_FullHTMLEntities[] =
{
{ L'"', "&quot;", 6 },
{ L'\'', "&apos;", 6 },
{ L'&', "&amp;", 5 },
{ L'<', "&lt;", 4 },
{ L'>', "&gt;", 4 },
{ L' ', "&nbsp;", 6 },
{ L'\u2122', "&trade;", 7 },
{ L'\u00A9', "&copy;", 6 },
{ L'\u00AE', "&reg;", 5 },
{ L'\u2013', "&ndash;", 7 },
{ L'\u2014', "&mdash;", 7 },
{ L'\u20AC', "&euro;", 6 },
{ L'\u00A1', "&iexcl;", 7 },
{ L'\u00A2', "&cent;", 6 },
{ L'\u00A3', "&pound;", 7 },
{ L'\u00A4', "&curren;", 8 },
{ L'\u00A5', "&yen;", 5 },
{ L'\u00A6', "&brvbar;", 8 },
{ L'\u00A7', "&sect;", 6 },
{ L'\u00A8', "&uml;", 5 },
{ L'\u00AA', "&ordf;", 6 },
{ L'\u00AB', "&laquo;", 7 },
{ L'\u00AC', "&not;", 8 },
{ L'\u00AD', "&shy;", 5 },
{ L'\u00AF', "&macr;", 6 },
{ L'\u00B0', "&deg;", 5 },
{ L'\u00B1', "&plusmn;", 8 },
{ L'\u00B2', "&sup2;", 6 },
{ L'\u00B3', "&sup3;", 6 },
{ L'\u00B4', "&acute;", 7 },
{ L'\u00B5', "&micro;", 7 },
{ L'\u00B6', "&para;", 6 },
{ L'\u00B7', "&middot;", 8 },
{ L'\u00B8', "&cedil;", 7 },
{ L'\u00B9', "&sup1;", 6 },
{ L'\u00BA', "&ordm;", 6 },
{ L'\u00BB', "&raquo;", 7 },
{ L'\u00BC', "&frac14;", 8 },
{ L'\u00BD', "&frac12;", 8 },
{ L'\u00BE', "&frac34;", 8 },
{ L'\u00BF', "&iquest;", 8 },
{ L'\u00D7', "&times;", 7 },
{ L'\u00F7', "&divide;", 8 },
{ L'\u00C0', "&Agrave;", 8 },
{ L'\u00C1', "&Aacute;", 8 },
{ L'\u00C2', "&Acirc;", 7 },
{ L'\u00C3', "&Atilde;", 8 },
{ L'\u00C4', "&Auml;", 6 },
{ L'\u00C5', "&Aring;", 7 },
{ L'\u00C6', "&AElig;", 7 },
{ L'\u00C7', "&Ccedil;", 8 },
{ L'\u00C8', "&Egrave;", 8 },
{ L'\u00C9', "&Eacute;", 8 },
{ L'\u00CA', "&Ecirc;", 7 },
{ L'\u00CB', "&Euml;", 6 },
{ L'\u00CC', "&Igrave;", 8 },
{ L'\u00CD', "&Iacute;", 8 },
{ L'\u00CE', "&Icirc;", 7 },
{ L'\u00CF', "&Iuml;", 6 },
{ L'\u00D0', "&ETH;", 5 },
{ L'\u00D1', "&Ntilde;", 8 },
{ L'\u00D2', "&Ograve;", 8 },
{ L'\u00D3', "&Oacute;", 8 },
{ L'\u00D4', "&Ocirc;", 7 },
{ L'\u00D5', "&Otilde;", 8 },
{ L'\u00D6', "&Ouml;", 6 },
{ L'\u00D8', "&Oslash;", 8 },
{ L'\u00D9', "&Ugrave;", 8 },
{ L'\u00DA', "&Uacute;", 8 },
{ L'\u00DB', "&Ucirc;", 7 },
{ L'\u00DC', "&Uuml;", 6 },
{ L'\u00DD', "&Yacute;", 8 },
{ L'\u00DE', "&THORN;", 7 },
{ L'\u00DF', "&szlig;", 7 },
{ L'\u00E0', "&agrave;", 8 },
{ L'\u00E1', "&aacute;", 8 },
{ L'\u00E2', "&acirc;", 7 },
{ L'\u00E3', "&atilde;", 8 },
{ L'\u00E4', "&auml;", 6 },
{ L'\u00E5', "&aring;", 7 },
{ L'\u00E6', "&aelig;", 7 },
{ L'\u00E7', "&ccedil;", 8 },
{ L'\u00E8', "&egrave;", 8 },
{ L'\u00E9', "&eacute;", 8 },
{ L'\u00EA', "&ecirc;", 7 },
{ L'\u00EB', "&euml;", 6 },
{ L'\u00EC', "&igrave;", 8 },
{ L'\u00ED', "&iacute;", 8 },
{ L'\u00EE', "&icirc;", 7 },
{ L'\u00EF', "&iuml;", 6 },
{ L'\u00F0', "&eth;", 5 },
{ L'\u00F1', "&ntilde;", 8 },
{ L'\u00F2', "&ograve;", 8 },
{ L'\u00F3', "&oacute;", 8 },
{ L'\u00F4', "&ocirc;", 7 },
{ L'\u00F5', "&otilde;", 8 },
{ L'\u00F6', "&ouml;", 6 },
{ L'\u00F8', "&oslash;", 8 },
{ L'\u00F9', "&ugrave;", 8 },
{ L'\u00FA', "&uacute;", 8 },
{ L'\u00FB', "&ucirc;", 7 },
{ L'\u00FC', "&uuml;", 6 },
{ L'\u00FD', "&yacute;", 8 },
{ L'\u00FE', "&thorn;", 7 },
{ L'\u00FF', "&yuml;", 6 },
{ 0, NULL, 0 } // sentinel for end of array
};
#ifdef _WIN32
#pragma warning( pop )
#endif
bool V_BasicHtmlEntityEncode( char *pDest, const int nDestSize, char const *pIn, const int nInSize, bool bPreserveWhitespace /*= false*/ )
{
Assert( nDestSize == 0 || pDest != NULL );
int iOutput = 0;
for ( int iInput = 0; iInput < nInSize; ++iInput )
{
bool bReplacementDone = false;
// See if the current char matches any of the basic entities
for ( int i = 0; g_BasicHTMLEntities[ i ].uCharCode != 0; ++i )
{
if ( pIn[ iInput ] == g_BasicHTMLEntities[ i ].uCharCode )
{
bReplacementDone = true;
for ( int j = 0; j < g_BasicHTMLEntities[ i ].nEntityLength; ++j )
{
if ( iOutput >= nDestSize - 1 )
{
pDest[ nDestSize - 1 ] = 0;
return false;
}
pDest[ iOutput++ ] = g_BasicHTMLEntities[ i ].pchEntity[ j ];
}
}
}
if ( bPreserveWhitespace && !bReplacementDone )
{
// See if the current char matches any of the basic entities
for ( int i = 0; g_WhitespaceEntities[ i ].uCharCode != 0; ++i )
{
if ( pIn[ iInput ] == g_WhitespaceEntities[ i ].uCharCode )
{
bReplacementDone = true;
for ( int j = 0; j < g_WhitespaceEntities[ i ].nEntityLength; ++j )
{
if ( iOutput >= nDestSize - 1 )
{
pDest[ nDestSize - 1 ] = 0;
return false;
}
pDest[ iOutput++ ] = g_WhitespaceEntities[ i ].pchEntity[ j ];
}
}
}
}
if ( !bReplacementDone )
{
pDest[ iOutput++ ] = pIn[ iInput ];
}
}
// Null terminate the output
pDest[ iOutput ] = 0;
return true;
}
bool V_HtmlEntityDecodeToUTF8( char *pDest, const int nDestSize, char const *pIn, const int nInSize )
{
Assert( nDestSize == 0 || pDest != NULL );
int iOutput = 0;
for ( int iInput = 0; iInput < nInSize && iOutput < nDestSize; ++iInput )
{
bool bReplacementDone = false;
if ( pIn[ iInput ] == '&' )
{
bReplacementDone = true;
uchar32 wrgchReplacement[ 2 ] = { 0, 0 };
char rgchReplacement[ 8 ];
rgchReplacement[ 0 ] = 0;
const char *pchEnd = Q_strstr( pIn + iInput + 1, ";" );
if ( pchEnd )
{
if ( iInput + 1 < nInSize && pIn[ iInput + 1 ] == '#' )
{
// Numeric
int iBase = 10;
int iOffset = 2;
if ( iInput + 3 < nInSize && pIn[ iInput + 2 ] == 'x' )
{
iBase = 16;
iOffset = 3;
}
wrgchReplacement[ 0 ] = (uchar32)V_strtoi64( pIn + iInput + iOffset, NULL, iBase );
if ( !Q_UTF32ToUTF8( wrgchReplacement, rgchReplacement, sizeof( rgchReplacement ) ) )
{
rgchReplacement[ 0 ] = 0;
}
}
else
{
// Lookup in map
const Tier1FullHTMLEntity_t *pFullEntities = g_Tier1_FullHTMLEntities;
for ( int i = 0; pFullEntities[ i ].uCharCode != 0; ++i )
{
if ( nInSize - iInput - 1 >= pFullEntities[ i ].nEntityLength )
{
if ( Q_memcmp( pIn + iInput, pFullEntities[ i ].pchEntity, pFullEntities[ i ].nEntityLength ) == 0 )
{
wrgchReplacement[ 0 ] = pFullEntities[ i ].uCharCode;
if ( !Q_UTF32ToUTF8( wrgchReplacement, rgchReplacement, sizeof( rgchReplacement ) ) )
{
rgchReplacement[ 0 ] = 0;
}
break;
}
}
}
}
// make sure we found a replacement. If not, skip
int cchReplacement = V_strlen( rgchReplacement );
if ( cchReplacement > 0 )
{
if ( (int)cchReplacement + iOutput < nDestSize )
{
for ( int i = 0; rgchReplacement[ i ] != 0; ++i )
{
pDest[ iOutput++ ] = rgchReplacement[ i ];
}
}
// Skip extra space that we passed
iInput += pchEnd - ( pIn + iInput );
}
else
{
bReplacementDone = false;
}
}
}
if ( !bReplacementDone )
{
pDest[ iOutput++ ] = pIn[ iInput ];
}
}
// Null terminate the output
if ( iOutput < nDestSize )
{
pDest[ iOutput ] = 0;
}
else
{
pDest[ nDestSize - 1 ] = 0;
}
return true;
}
static const char *g_pszSimpleBBCodeReplacements[] = {
"[b]", "<b>",
"[/b]", "</b>",
"[i]", "<i>",
"[/i]", "</i>",
"[u]", "<u>",
"[/u]", "</u>",
"[s]", "<s>",
"[/s]", "</s>",
"[code]", "<pre>",
"[/code]", "</pre>",
"[h1]", "<h1>",
"[/h1]", "</h1>",
"[list]", "<ul>",
"[/list]", "</ul>",
"[*]", "<li>",
"[/url]", "</a>",
"[img]", "<img src=\"",
"[/img]", "\"></img>",
};
// Converts BBCode tags to HTML tags
bool V_BBCodeToHTML( OUT_Z_CAP( nDestSize ) char *pDest, const int nDestSize, char const *pIn, const int nInSize )
{
Assert( nDestSize == 0 || pDest != NULL );
int iOutput = 0;
for ( int iInput = 0; iInput < nInSize && iOutput < nDestSize && pIn[ iInput ]; ++iInput )
{
if ( pIn[ iInput ] == '[' )
{
// check simple replacements
bool bFoundReplacement = false;
for ( int r = 0; r < ARRAYSIZE( g_pszSimpleBBCodeReplacements ); r += 2 )
{
int nBBCodeLength = V_strlen( g_pszSimpleBBCodeReplacements[ r ] );
if ( !V_strnicmp( &pIn[ iInput ], g_pszSimpleBBCodeReplacements[ r ], nBBCodeLength ) )
{
int nHTMLReplacementLength = V_strlen( g_pszSimpleBBCodeReplacements[ r + 1 ] );
for ( int c = 0; c < nHTMLReplacementLength && iOutput < nDestSize; c++ )
{
pDest[ iOutput ] = g_pszSimpleBBCodeReplacements[ r + 1 ][ c ];
iOutput++;
}
iInput += nBBCodeLength - 1;
bFoundReplacement = true;
break;
}
}
// check URL replacement
if ( !bFoundReplacement && !V_strnicmp( &pIn[ iInput ], "[url=", 5 ) && nDestSize - iOutput > 9 )
{
iInput += 5;
pDest[ iOutput++ ] = '<';
pDest[ iOutput++ ] = 'a';
pDest[ iOutput++ ] = ' ';
pDest[ iOutput++ ] = 'h';
pDest[ iOutput++ ] = 'r';
pDest[ iOutput++ ] = 'e';
pDest[ iOutput++ ] = 'f';
pDest[ iOutput++ ] = '=';
pDest[ iOutput++ ] = '\"';
// copy all characters up to the closing square bracket
while ( pIn[ iInput ] != ']' && iInput < nInSize && iOutput < nDestSize )
{
pDest[ iOutput++ ] = pIn[ iInput++ ];
}
if ( pIn[ iInput ] == ']' && nDestSize - iOutput > 2 )
{
pDest[ iOutput++ ] = '\"';
pDest[ iOutput++ ] = '>';
}
bFoundReplacement = true;
}
// otherwise, skip over everything up to the closing square bracket
if ( !bFoundReplacement )
{
while ( pIn[ iInput ] != ']' && iInput < nInSize )
{
iInput++;
}
}
}
else if ( pIn[ iInput ] == '\r' && pIn[ iInput + 1 ] == '\n' )
{
// convert carriage return and newline to a <br>
if ( nDestSize - iOutput > 4 )
{
pDest[ iOutput++ ] = '<';
pDest[ iOutput++ ] = 'b';
pDest[ iOutput++ ] = 'r';
pDest[ iOutput++ ] = '>';
}
iInput++;
}
else if ( pIn[ iInput ] == '\n' )
{
// convert newline to a <br>
if ( nDestSize - iOutput > 4 )
{
pDest[ iOutput++ ] = '<';
pDest[ iOutput++ ] = 'b';
pDest[ iOutput++ ] = 'r';
pDest[ iOutput++ ] = '>';
}
}
else
{
// copy character to destination
pDest[ iOutput++ ] = pIn[ iInput ];
}
}
// always terminate string
if ( iOutput >= nDestSize )
{
iOutput = nDestSize - 1;
}
pDest[ iOutput ] = 0;
return true;
}
//-----------------------------------------------------------------------------
// Purpose: returns true if a wide character is a "mean" space; that is,
// if it is technically a space or punctuation, but causes disruptive
// behavior when used in names, web pages, chat windows, etc.
//
// characters in this set are removed from the beginning and/or end of strings
// by Q_AggressiveStripPrecedingAndTrailingWhitespaceW()
//-----------------------------------------------------------------------------
bool V_IsMeanUnderscoreW( wchar_t wch )
{
bool bIsMean = false;
switch ( wch )
{
case L'\x005f': // low line (normal underscore)
case L'\xff3f': // fullwidth low line
case L'\x0332': // combining low line
bIsMean = true;
break;
default:
break;
}
return bIsMean;
}
//-----------------------------------------------------------------------------
// Purpose: returns true if a wide character is a "mean" space; that is,
// if it is technically a space or punctuation, but causes disruptive
// behavior when used in names, web pages, chat windows, etc.
//
// characters in this set are removed from the beginning and/or end of strings
// by Q_AggressiveStripPrecedingAndTrailingWhitespaceW()
//-----------------------------------------------------------------------------
bool V_IsMeanSpaceW( wchar_t wch )
{
bool bIsMean = false;
switch ( wch )
{
case L'\x0080': // PADDING CHARACTER
case L'\x0081': // HIGH OCTET PRESET
case L'\x0082': // BREAK PERMITTED HERE
case L'\x0083': // NO BREAK PERMITTED HERE
case L'\x0084': // INDEX
case L'\x0085': // NEXT LINE
case L'\x0086': // START OF SELECTED AREA
case L'\x0087': // END OF SELECTED AREA
case L'\x0088': // CHARACTER TABULATION SET
case L'\x0089': // CHARACTER TABULATION WITH JUSTIFICATION
case L'\x008A': // LINE TABULATION SET
case L'\x008B': // PARTIAL LINE FORWARD
case L'\x008C': // PARTIAL LINE BACKWARD
case L'\x008D': // REVERSE LINE FEED
case L'\x008E': // SINGLE SHIFT 2
case L'\x008F': // SINGLE SHIFT 3
case L'\x0090': // DEVICE CONTROL STRING
case L'\x0091': // PRIVATE USE
case L'\x0092': // PRIVATE USE
case L'\x0093': // SET TRANSMIT STATE
case L'\x0094': // CANCEL CHARACTER
case L'\x0095': // MESSAGE WAITING
case L'\x0096': // START OF PROTECTED AREA
case L'\x0097': // END OF PROTECED AREA
case L'\x0098': // START OF STRING
case L'\x0099': // SINGLE GRAPHIC CHARACTER INTRODUCER
case L'\x009A': // SINGLE CHARACTER INTRODUCER
case L'\x009B': // CONTROL SEQUENCE INTRODUCER
case L'\x009C': // STRING TERMINATOR
case L'\x009D': // OPERATING SYSTEM COMMAND
case L'\x009E': // PRIVACY MESSAGE
case L'\x009F': // APPLICATION PROGRAM COMMAND
case L'\x00A0': // NO-BREAK SPACE
case L'\x034F': // COMBINING GRAPHEME JOINER
case L'\x2000': // EN QUAD
case L'\x2001': // EM QUAD
case L'\x2002': // EN SPACE
case L'\x2003': // EM SPACE
case L'\x2004': // THICK SPACE
case L'\x2005': // MID SPACE
case L'\x2006': // SIX SPACE
case L'\x2007': // figure space
case L'\x2008': // PUNCTUATION SPACE
case L'\x2009': // THIN SPACE
case L'\x200A': // HAIR SPACE
case L'\x200B': // ZERO-WIDTH SPACE
case L'\x200C': // ZERO-WIDTH NON-JOINER
case L'\x200D': // ZERO WIDTH JOINER
case L'\x2028': // LINE SEPARATOR
case L'\x2029': // PARAGRAPH SEPARATOR
case L'\x202F': // NARROW NO-BREAK SPACE
case L'\x2060': // word joiner
case L'\xFEFF': // ZERO-WIDTH NO BREAK SPACE
case L'\xFFFC': // OBJECT REPLACEMENT CHARACTER
bIsMean = true;
break;
}
return bIsMean;
}
//-----------------------------------------------------------------------------
// Purpose: tell us if a Unicode character is deprecated
//
// See Unicode Technical Report #20: http://www.unicode.org/reports/tr20/
//
// Some characters are difficult or unreliably rendered. These characters eventually
// fell out of the Unicode standard, but are abusable by users. For example,
// setting "RIGHT-TO-LEFT OVERRIDE" without popping or undoing the action causes
// the layout instruction to bleed into following characters in HTML renderings,
// or upset layout calculations in vgui panels.
//
// Many games don't cope with these characters well, and end up providing opportunities
// for griefing others. For example, a user might join a game with a malformed player
// name and it turns out that player name can't be selected or typed into the admin
// console or UI to mute, kick, or ban the disruptive player.
//
// Ideally, we'd perfectly support these end-to-end but we never realistically will.
// The benefit of doing so far outweighs the cost, anyway.
//-----------------------------------------------------------------------------
bool V_IsDeprecatedW( wchar_t wch )
{
bool bIsDeprecated = false;
switch ( wch )
{
case L'\x202A': // LEFT-TO-RIGHT EMBEDDING
case L'\x202B': // RIGHT-TO-LEFT EMBEDDING
case L'\x202C': // POP DIRECTIONAL FORMATTING
case L'\x202D': // LEFT-TO-RIGHT OVERRIDE
case L'\x202E': // RIGHT-TO-LEFT OVERRIDE
case L'\x206A': // INHIBIT SYMMETRIC SWAPPING
case L'\x206B': // ACTIVATE SYMMETRIC SWAPPING
case L'\x206C': // INHIBIT ARABIC FORM SHAPING
case L'\x206D': // ACTIVATE ARABIC FORM SHAPING
case L'\x206E': // NATIONAL DIGIT SHAPES
case L'\x206F': // NOMINAL DIGIT SHAPES
bIsDeprecated = true;
}
return bIsDeprecated;
}
//-----------------------------------------------------------------------------
// returns true if the character is allowed in a DNS doman name, false otherwise
//-----------------------------------------------------------------------------
bool V_IsValidDomainNameCharacter( const char *pch, int *pAdvanceBytes )
{
if ( pAdvanceBytes )
*pAdvanceBytes = 0;
// We allow unicode in Domain Names without the an encoding unless it corresponds to
// a whitespace or control sequence or something we think is an underscore looking thing.
// If this character is the start of a UTF-8 sequence, try decoding it.
unsigned char ch = (unsigned char)*pch;
if ( ( ch & 0xC0 ) == 0xC0 )
{
uchar32 rgch32Buf;
bool bError = false;
int iAdvance = Q_UTF8ToUChar32( pch, rgch32Buf, bError );
if ( bError || iAdvance == 0 )
{
// Invalid UTF8 sequence, lets consider that invalid
return false;
}
if ( pAdvanceBytes )
*pAdvanceBytes = iAdvance;
if ( iAdvance )
{
// Ick. Want uchar32 versions of unicode character classification functions.
// Really would like Q_IsWhitespace32 and Q_IsNonPrintable32, but this is OK.
if ( rgch32Buf < 0x10000 && ( V_IsMeanSpaceW( (wchar_t)rgch32Buf ) || V_IsDeprecatedW( (wchar_t)rgch32Buf ) || V_IsMeanUnderscoreW( (wchar_t)rgch32Buf ) ) )
{
return false;
}
return true;
}
else
{
// Unreachable but would be invalid utf8
return false;
}
}
else
{
// Was not unicode
if ( pAdvanceBytes )
*pAdvanceBytes = 1;
// The only allowable non-unicode chars are a-z A-Z 0-9 and -
if ( ( ch >= 'a' && ch <= 'z' ) || ( ch >= 'A' && ch <= 'Z' ) || ( ch >= '0' && ch <= '9' ) || ch == '-' || ch == '.' )
return true;
return false;
}
}
//-----------------------------------------------------------------------------
// returns true if the character is allowed in a URL, false otherwise
//-----------------------------------------------------------------------------
bool V_IsValidURLCharacter( const char *pch, int *pAdvanceBytes )
{
if ( pAdvanceBytes )
*pAdvanceBytes = 0;
// We allow unicode in URLs unless it corresponds to a whitespace or control sequence.
// If this character is the start of a UTF-8 sequence, try decoding it.
unsigned char ch = (unsigned char)*pch;
if ( ( ch & 0xC0 ) == 0xC0 )
{
uchar32 rgch32Buf;
bool bError = false;
int iAdvance = Q_UTF8ToUChar32( pch, rgch32Buf, bError );
if ( bError || iAdvance == 0 )
{
// Invalid UTF8 sequence, lets consider that invalid
return false;
}
if ( pAdvanceBytes )
*pAdvanceBytes = iAdvance;
if ( iAdvance )
{
// Ick. Want uchar32 versions of unicode character classification functions.
// Really would like Q_IsWhitespace32 and Q_IsNonPrintable32, but this is OK.
if ( rgch32Buf < 0x10000 && ( V_IsMeanSpaceW( (wchar_t)rgch32Buf ) || V_IsDeprecatedW( (wchar_t)rgch32Buf ) ) )
{
return false;
}
return true;
}
else
{
// Unreachable but would be invalid utf8
return false;
}
}
else
{
// Was not unicode
if ( pAdvanceBytes )
*pAdvanceBytes = 1;
// Spaces, control characters, quotes, and angle brackets are not legal URL characters.
if ( ch <= 32 || ch == 127 || ch == '"' || ch == '<' || ch == '>' )
return false;
return true;
}
}
//-----------------------------------------------------------------------------
// Purpose: helper function to get a domain from a url
// Checks both standard url and steam://openurl/<url>
//-----------------------------------------------------------------------------
bool V_ExtractDomainFromURL( const char *pchURL, char *pchDomain, int cchDomain )
{
pchDomain[ 0 ] = 0;
static const char *k_pchSteamOpenUrl = "steam://openurl/";
static const char *k_pchSteamOpenUrlExt = "steam://openurl_external/";
const char *pchOpenUrlSuffix = StringAfterPrefix( pchURL, k_pchSteamOpenUrl );
if ( pchOpenUrlSuffix == NULL )
pchOpenUrlSuffix = StringAfterPrefix( pchURL, k_pchSteamOpenUrlExt );
if ( pchOpenUrlSuffix )
pchURL = pchOpenUrlSuffix;
if ( !pchURL || pchURL[ 0 ] == '\0' )
return false;
const char *pchDoubleSlash = strstr( pchURL, "//" );
// Put the domain and everything after into pchDomain.
// We'll find where to terminate it later.
if ( pchDoubleSlash )
{
// Skip the slashes
pchDoubleSlash += 2;
// If that's all there was, then there's no domain here. Bail.
if ( *pchDoubleSlash == '\0' )
{
return false;
}
// Skip any extra slashes
// ex: http:///steamcommunity.com/
while ( *pchDoubleSlash == '/' )
{
pchDoubleSlash++;
}
Q_strncpy( pchDomain, pchDoubleSlash, cchDomain );
}
else
{
// No double slash, so pchURL has no protocol.
Q_strncpy( pchDomain, pchURL, cchDomain );
}
// First character has to be valid
if ( *pchDomain == '?' || *pchDomain == '\0' )
{
return false;
}
// terminate the domain after the first non domain char
int iAdvance = 0;
int iStrLen = 0;
char cLast = 0;
while ( pchDomain[ iStrLen ] )
{
if ( !V_IsValidDomainNameCharacter( pchDomain + iStrLen, &iAdvance ) || ( pchDomain[ iStrLen ] == '.' && cLast == '.' ) )
{
pchDomain[ iStrLen ] = 0;
break;
}
cLast = pchDomain[ iStrLen ];
iStrLen += iAdvance;
}
return ( pchDomain[ 0 ] != 0 );
}
//-----------------------------------------------------------------------------
// Purpose: helper function to get a domain from a url
//-----------------------------------------------------------------------------
bool V_URLContainsDomain( const char *pchURL, const char *pchDomain )
{
char rgchExtractedDomain[ 2048 ];
if ( V_ExtractDomainFromURL( pchURL, rgchExtractedDomain, sizeof( rgchExtractedDomain ) ) )
{
// see if the last part of the domain matches what we extracted
int cchExtractedDomain = V_strlen( rgchExtractedDomain );
if ( pchDomain[ 0 ] == '.' )
{
++pchDomain; // If the domain has a leading '.', skip it. The test below assumes there is none.
}
int cchDomain = V_strlen( pchDomain );
if ( cchDomain > cchExtractedDomain )
{
return false;
}
else if ( cchExtractedDomain >= cchDomain )
{
// If the actual domain is longer than what we're searching for, the character previous
// to the domain we're searching for must be a period
if ( cchExtractedDomain > cchDomain && rgchExtractedDomain[ cchExtractedDomain - cchDomain - 1 ] != '.' )
return false;
if ( 0 == V_stricmp( rgchExtractedDomain + cchExtractedDomain - cchDomain, pchDomain ) )
return true;
}
}
return false;
}
//-----------------------------------------------------------------------------
// Purpose: Strips all HTML tags not specified in rgszPreserveTags
// Does some additional formatting, like turning <li> into * when not preserving that tag,
// and auto-closing unclosed tags if they aren't specified in rgszNoCloseTags
//-----------------------------------------------------------------------------
void V_StripAndPreserveHTMLCore( CUtlBuffer *pbuffer, const char *pchHTML, const char **rgszPreserveTags, uint cPreserveTags, const char **rgszNoCloseTags, uint cNoCloseTags, uint cMaxResultSize )
{
uint cHTMLCur = 0;
bool bStripNewLines = true;
if ( cPreserveTags > 0 )
{
for ( uint i = 0; i < cPreserveTags; ++i )
{
if ( !Q_stricmp( rgszPreserveTags[ i ], "\n" ) )
bStripNewLines = false;
}
}
//state-
bool bInStrippedTag = false;
bool bInStrippedContentTag = false;
bool bInPreservedTag = false;
bool bInListItemTag = false;
bool bLastCharWasWhitespace = true; //set to true to strip leading whitespace
bool bInComment = false;
bool bInDoubleQuote = false;
bool bInSingleQuote = false;
int nPreTagDepth = 0;
CUtlVector< const char* > vecTagStack;
for ( int iContents = 0; pchHTML[ iContents ] != '\0' && cHTMLCur < cMaxResultSize; iContents++ )
{
char c = pchHTML[ iContents ];
// If we are entering a comment, flag as such and skip past the begin comment tag
const char *pchCur = &pchHTML[ iContents ];
if ( !Q_strnicmp( pchCur, "<!--", 4 ) )
{
bInComment = true;
iContents += 3;
continue;
}
// If we are in a comment, check if we are exiting
if ( bInComment )
{
if ( !Q_strnicmp( pchCur, "-->", 3 ) )
{
bInComment = false;
iContents += 2;
continue;
}
else
{
continue;
}
}
if ( bInStrippedTag || bInPreservedTag )
{
// we're inside a tag, keep stripping/preserving until we get to a >
if ( bInPreservedTag )
pbuffer->PutChar( c );
// While inside a tag, ignore ending > properties if they are inside a property value in "" or ''
if ( c == '"' )
{
if ( bInDoubleQuote )
bInDoubleQuote = false;
else
bInDoubleQuote = true;
}
if ( c == '\'' )
{
if ( bInSingleQuote )
bInSingleQuote = false;
else
bInSingleQuote = true;
}
if ( !bInDoubleQuote && !bInSingleQuote && c == '>' )
{
if ( bInPreservedTag )
bLastCharWasWhitespace = false;
bInPreservedTag = false;
bInStrippedTag = false;
}
}
else if ( bInStrippedContentTag )
{
if ( c == '<' && !Q_strnicmp( pchCur, "</script>", 9 ) )
{
bInStrippedContentTag = false;
iContents += 8;
continue;
}
else
{
continue;
}
}
else if ( c & 0x80 && !bInStrippedContentTag )
{
// start/continuation of a multibyte sequence, copy to output.
int nMultibyteRemaining = 0;
if ( ( c & 0xF8 ) == 0xF0 ) // first 5 bits are 11110
nMultibyteRemaining = 3;
else if ( ( c & 0xF0 ) == 0xE0 ) // first 4 bits are 1110
nMultibyteRemaining = 2;
else if ( ( c & 0xE0 ) == 0xC0 ) // first 3 bits are 110
nMultibyteRemaining = 1;
// cHTMLCur is in characters, so just +1
cHTMLCur++;
pbuffer->Put( pchCur, 1 + nMultibyteRemaining );
iContents += nMultibyteRemaining;
// Need to determine if we just added whitespace or not
wchar_t rgwch[ 3 ] = { 0 };
Q_UTF8CharsToWString( pchCur, 1, rgwch, sizeof( rgwch ) );
if ( !V_iswspace( rgwch[ 0 ] ) )
bLastCharWasWhitespace = false;
else
bLastCharWasWhitespace = true;
}
else
{
//not in a multibyte sequence- do our parsing/stripping
if ( c == '<' )
{
if ( !rgszPreserveTags || cPreserveTags == 0 )
{
//not preserving any tags, just strip it
bInStrippedTag = true;
}
else
{
//look ahead, is this our kind of tag?
bool bPreserve = false;
bool bEndTag = false;
const char *szTagStart = &pchHTML[ iContents + 1 ];
// if it's a close tag, skip the /
if ( *szTagStart == '/' )
{
bEndTag = true;
szTagStart++;
}
if ( Q_strnicmp( "script", szTagStart, 6 ) == 0 )
{
bInStrippedTag = true;
bInStrippedContentTag = true;
}
else
{
//see if this tag is one we want to preserve
for ( uint iTag = 0; iTag < cPreserveTags; iTag++ )
{
const char *szTag = rgszPreserveTags[ iTag ];
int cchTag = Q_strlen( szTag );
//make sure characters match, and are followed by some non-alnum char
// so "i" can match <i> or <i class=...>, but not <img>
if ( Q_strnicmp( szTag, szTagStart, cchTag ) == 0 && !V_isalnum( szTagStart[ cchTag ] ) )
{
bPreserve = true;
if ( bEndTag )
{
// ending a paragraph tag is optional. If we were expecting to find one, and didn't, skip
if ( Q_stricmp( szTag, "p" ) != 0 )
{
while ( vecTagStack.Count() > 0 && Q_stricmp( vecTagStack[ vecTagStack.Count() - 1 ], "p" ) == 0 )
{
vecTagStack.Remove( vecTagStack.Count() - 1 );
}
}
if ( vecTagStack.Count() > 0 && vecTagStack[ vecTagStack.Count() - 1 ] == szTag )
{
vecTagStack.Remove( vecTagStack.Count() - 1 );
if ( Q_stricmp( szTag, "pre" ) == 0 )
{
nPreTagDepth--;
if ( nPreTagDepth < 0 )
{
nPreTagDepth = 0;
}
}
}
else
{
// don't preserve this unbalanced tag. All open tags will be closed at the end of the blurb
bPreserve = false;
}
}
else
{
bool bNoCloseTag = false;
for ( uint iNoClose = 0; iNoClose < cNoCloseTags; iNoClose++ )
{
if ( Q_stricmp( szTag, rgszNoCloseTags[ iNoClose ] ) == 0 )
{
bNoCloseTag = true;
break;
}
}
if ( !bNoCloseTag )
{
vecTagStack.AddToTail( szTag );
if ( Q_stricmp( szTag, "pre" ) == 0 )
{
nPreTagDepth++;
}
}
}
break;
}
}
if ( !bPreserve )
{
bInStrippedTag = true;
}
else
{
bInPreservedTag = true;
pbuffer->PutChar( c );
}
}
}
if ( bInStrippedTag )
{
const char *szTagStart = &pchHTML[ iContents ];
if ( Q_strnicmp( szTagStart, "<li>", Q_strlen( "<li>" ) ) == 0 )
{
if ( bInListItemTag )
{
pbuffer->PutChar( ';' );
cHTMLCur++;
bInListItemTag = false;
}
if ( !bLastCharWasWhitespace )
{
pbuffer->PutChar( ' ' );
cHTMLCur++;
}
pbuffer->PutChar( '*' );
pbuffer->PutChar( ' ' );
cHTMLCur += 2;
bInListItemTag = true;
}
else if ( !bLastCharWasWhitespace )
{
if ( bInListItemTag )
{
char cLastChar = ' ';
if ( pbuffer->TellPut() > 0 )
{
cLastChar = ( ( (char*)pbuffer->Base() ) + pbuffer->TellPut() - 1 )[ 0 ];
}
if ( cLastChar != '.' && cLastChar != '?' && cLastChar != '!' )
{
pbuffer->PutChar( ';' );
cHTMLCur++;
}
bInListItemTag = false;
}
//we're decided to remove a tag, simulate a space in the original text
pbuffer->PutChar( ' ' );
cHTMLCur++;
}
bLastCharWasWhitespace = true;
}
}
else
{
//just a normal character, nothin' special.
if ( nPreTagDepth == 0 && V_isspace( c ) && ( bStripNewLines || c != '\n' ) )
{
if ( !bLastCharWasWhitespace )
{
//replace any block of whitespace with a single space
cHTMLCur++;
pbuffer->PutChar( ' ' );
bLastCharWasWhitespace = true;
}
// don't put anything for whitespace if the previous character was whitespace
// (effectively trimming all blocks of whitespace down to a single ' ')
}
else
{
cHTMLCur++;
pbuffer->PutChar( c );
bLastCharWasWhitespace = false;
}
}
}
}
if ( cHTMLCur >= cMaxResultSize )
{
// we terminated because the blurb was full. Add a '...' to the end
pbuffer->Put( "...", 3 );
}
//close any preserved tags that were open at the end.
FOR_EACH_VEC_BACK( vecTagStack, iTagStack )
{
pbuffer->PutChar( '<' );
pbuffer->PutChar( '/' );
pbuffer->Put( vecTagStack[ iTagStack ], Q_strlen( vecTagStack[ iTagStack ] ) );
pbuffer->PutChar( '>' );
}
// Null terminate
pbuffer->PutChar( '\0' );
}
//-----------------------------------------------------------------------------
// Purpose: Strips all HTML tags not specified in rgszPreserveTags
// Does some additional formatting, like turning <li> into * when not preserving that tag
//-----------------------------------------------------------------------------
void V_StripAndPreserveHTML( CUtlBuffer *pbuffer, const char *pchHTML, const char **rgszPreserveTags, uint cPreserveTags, uint cMaxResultSize )
{
const char *rgszNoCloseTags[] = { "br", "img" };
V_StripAndPreserveHTMLCore( pbuffer, pchHTML, rgszPreserveTags, cPreserveTags, rgszNoCloseTags, V_ARRAYSIZE( rgszNoCloseTags ), cMaxResultSize );
}