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/**
* @file lltextvalidate.cpp
* @brief Text validation helper functions
*
* $LicenseInfo:firstyear=2001&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2010, Linden Research, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License only.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
// Text editor widget to let users enter a single line.
#include "linden_common.h"
#include "lltextvalidate.h"
#include "llresmgr.h" // for LLLocale
namespace LLTextValidate
{
void ValidateTextNamedFuncs::declareValues()
{
declare("ascii", validateASCII);
declare("float", validateFloat);
declare("int", validateInt);
declare("positive_s32", validatePositiveS32);
declare("non_negative_s32", validateNonNegativeS32);
declare("alpha_num", validateAlphaNum);
declare("alpha_num_space", validateAlphaNumSpace);
declare("ascii_printable_no_pipe", validateASCIIPrintableNoPipe);
declare("ascii_printable_no_space", validateASCIIPrintableNoSpace);
declare("ascii_with_newline", validateASCIIWithNewLine);
}
// Limits what characters can be used to [1234567890.-] with [-] only valid in the first position.
// Does NOT ensure that the string is a well-formed number--that's the job of post-validation--for
// the simple reasons that intermediate states may be invalid even if the final result is valid.
//
bool validateFloat(const LLWString &str)
{
LLLocale locale(LLLocale::USER_LOCALE);
bool success = TRUE;
LLWString trimmed = str;
LLWStringUtil::trim(trimmed);
S32 len = trimmed.length();
if( 0 < len )
{
// May be a comma or period, depending on the locale
llwchar decimal_point = (llwchar)LLResMgr::getInstance()->getDecimalPoint();
S32 i = 0;
// First character can be a negative sign
if( '-' == trimmed[0] )
{
i++;
}
for( ; i < len; i++ )
{
if( (decimal_point != trimmed[i] ) && !LLStringOps::isDigit( trimmed[i] ) )
{
success = FALSE;
break;
}
}
}
return success;
}
// Limits what characters can be used to [1234567890-] with [-] only valid in the first position.
// Does NOT ensure that the string is a well-formed number--that's the job of post-validation--for
// the simple reasons that intermediate states may be invalid even if the final result is valid.
//
bool validateInt(const LLWString &str)
{
LLLocale locale(LLLocale::USER_LOCALE);
bool success = TRUE;
LLWString trimmed = str;
LLWStringUtil::trim(trimmed);
S32 len = trimmed.length();
if( 0 < len )
{
S32 i = 0;
// First character can be a negative sign
if( '-' == trimmed[0] )
{
i++;
}
for( ; i < len; i++ )
{
if( !LLStringOps::isDigit( trimmed[i] ) )
{
success = FALSE;
break;
}
}
}
return success;
}
bool validatePositiveS32(const LLWString &str)
{
LLLocale locale(LLLocale::USER_LOCALE);
LLWString trimmed = str;
LLWStringUtil::trim(trimmed);
S32 len = trimmed.length();
bool success = TRUE;
if(0 < len)
{
if(('-' == trimmed[0]) || ('0' == trimmed[0]))
{
success = FALSE;
}
S32 i = 0;
while(success && (i < len))
{
if(!LLStringOps::isDigit(trimmed[i++]))
{
success = FALSE;
}
}
}
if (success)
{
S32 val = strtol(wstring_to_utf8str(trimmed).c_str(), NULL, 10);
if (val <= 0)
{
success = FALSE;
}
}
return success;
}
bool validateNonNegativeS32(const LLWString &str)
{
LLLocale locale(LLLocale::USER_LOCALE);
LLWString trimmed = str;
LLWStringUtil::trim(trimmed);
S32 len = trimmed.length();
bool success = TRUE;
if(0 < len)
{
if('-' == trimmed[0])
{
success = FALSE;
}
S32 i = 0;
while(success && (i < len))
{
if(!LLStringOps::isDigit(trimmed[i++]))
{
success = FALSE;
}
}
}
if (success)
{
S32 val = strtol(wstring_to_utf8str(trimmed).c_str(), NULL, 10);
if (val < 0)
{
success = FALSE;
}
}
return success;
}
bool validateNonNegativeS32NoSpace(const LLWString &str)
{
LLLocale locale(LLLocale::USER_LOCALE);
LLWString test_str = str;
S32 len = test_str.length();
bool success = TRUE;
if(0 < len)
{
if('-' == test_str[0])
{
success = FALSE;
}
S32 i = 0;
while(success && (i < len))
{
if(!LLStringOps::isDigit(test_str[i]) || LLStringOps::isSpace(test_str[i++]))
{
success = FALSE;
}
}
}
if (success)
{
S32 val = strtol(wstring_to_utf8str(test_str).c_str(), NULL, 10);
if (val < 0)
{
success = FALSE;
}
}
return success;
}
bool validateAlphaNum(const LLWString &str)
{
LLLocale locale(LLLocale::USER_LOCALE);
bool rv = TRUE;
S32 len = str.length();
if(len == 0) return rv;
while(len--)
{
if( !LLStringOps::isAlnum((char)str[len]) )
{
rv = FALSE;
break;
}
}
return rv;
}
bool validateAlphaNumSpace(const LLWString &str)
{
LLLocale locale(LLLocale::USER_LOCALE);
bool rv = TRUE;
S32 len = str.length();
if(len == 0) return rv;
while(len--)
{
if(!(LLStringOps::isAlnum((char)str[len]) || (' ' == str[len])))
{
rv = FALSE;
break;
}
}
return rv;
}
// Used for most names of things stored on the server, due to old file-formats
// that used the pipe (|) for multiline text storage. Examples include
// inventory item names, parcel names, object names, etc.
bool validateASCIIPrintableNoPipe(const LLWString &str)
{
bool rv = TRUE;
S32 len = str.length();
if(len == 0) return rv;
while(len--)
{
llwchar wc = str[len];
if (wc < 0x20
|| wc > 0x7f
|| wc == '|')
{
rv = FALSE;
break;
}
if(!(wc == ' '
|| LLStringOps::isAlnum((char)wc)
|| LLStringOps::isPunct((char)wc) ) )
{
rv = FALSE;
break;
}
}
return rv;
}
// Used for avatar names
bool validateASCIIPrintableNoSpace(const LLWString &str)
{
bool rv = TRUE;
S32 len = str.length();
if(len == 0) return rv;
while(len--)
{
llwchar wc = str[len];
if (wc < 0x20
|| wc > 0x7f
|| LLStringOps::isSpace(wc))
{
rv = FALSE;
break;
}
if( !(LLStringOps::isAlnum((char)str[len]) ||
LLStringOps::isPunct((char)str[len]) ) )
{
rv = FALSE;
break;
}
}
return rv;
}
bool validateASCII(const LLWString &str)
{
bool rv = TRUE;
S32 len = str.length();
while(len--)
{
if (str[len] < 0x20 || str[len] > 0x7f)
{
rv = FALSE;
break;
}
}
return rv;
}
bool validateASCIINoLeadingSpace(const LLWString &str)
{
if (LLStringOps::isSpace(str[0]))
{
return FALSE;
}
return validateASCII(str);
}
// Used for multiline text stored on the server.
// Example is landmark description in Places SP.
bool validateASCIIWithNewLine(const LLWString &str)
{
bool rv = TRUE;
S32 len = str.length();
while(len--)
{
if ((str[len] < 0x20 && str[len] != 0xA) || str[len] > 0x7f)
{
rv = FALSE;
break;
}
}
return rv;
}
}
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