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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 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;
+ }
+
+ // 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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