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+/**
+ * @file lltextvalidate.cpp
+ * @brief Text validation helper functions
+ *
+ * $LicenseInfo:firstyear=2001&license=viewergpl$
+ *
+ * Copyright (c) 2001-2009, 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;
+ }
+} \ No newline at end of file
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