lltextvalidate.cpp
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- /**
- * @file lltextvalidate.cpp
- * @brief Text validation helper functions
- *
- * $LicenseInfo:firstyear=2001&license=viewergpl$
- *
- * Copyright (c) 2001-2010, Linden Research, Inc.
- *
- * Second Life Viewer Source Code
- * The source code in this file ("Source Code") is provided by Linden Lab
- * to you under the terms of the GNU General Public License, version 2.0
- * ("GPL"), unless you have obtained a separate licensing agreement
- * ("Other License"), formally executed by you and Linden Lab. Terms of
- * the GPL can be found in doc/GPL-license.txt in this distribution, or
- * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
- *
- * There are special exceptions to the terms and conditions of the GPL as
- * it is applied to this Source Code. View the full text of the exception
- * in the file doc/FLOSS-exception.txt in this software distribution, or
- * online at
- * http://secondlifegrid.net/programs/open_source/licensing/flossexception
- *
- * By copying, modifying or distributing this software, you acknowledge
- * that you have read and understood your obligations described above,
- * and agree to abide by those obligations.
- *
- * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
- * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
- * COMPLETENESS OR PERFORMANCE.
- * $/LicenseInfo$
- */
- // 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);
- }
- // 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 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;
- }
- }