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637 lines
18 KiB
637 lines
18 KiB
/* This file is part of the KDE project
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Copyright (C) 1998-2002 The KSpread Team
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www.koffice.org/kspread
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Copyright (C) 2005 Tomas Mecir <mecirt@gmail.com>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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// built-in text functions
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// please keep it in alphabetical order
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#include <tqregexp.h>
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#include <kdebug.h>
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#include <klocale.h>
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#include <math.h>
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#include "functions.h"
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#include "valuecalc.h"
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#include "valueconverter.h"
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using namespace KSpread;
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// Functions DOLLAR and FIXED convert data to double, hence they will not
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// support arbitrary precision, when it will be introduced.
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// prototypes
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Value func_char (valVector args, ValueCalc *calc, FuncExtra *);
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Value func_clean (valVector args, ValueCalc *calc, FuncExtra *);
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Value func_code (valVector args, ValueCalc *calc, FuncExtra *);
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Value func_compare (valVector args, ValueCalc *calc, FuncExtra *);
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Value func_concatenate (valVector args, ValueCalc *calc, FuncExtra *);
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Value func_dollar (valVector args, ValueCalc *calc, FuncExtra *);
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Value func_exact (valVector args, ValueCalc *calc, FuncExtra *);
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Value func_find (valVector args, ValueCalc *calc, FuncExtra *);
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Value func_fixed (valVector args, ValueCalc *calc, FuncExtra *);
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Value func_left (valVector args, ValueCalc *calc, FuncExtra *);
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Value func_len (valVector args, ValueCalc *calc, FuncExtra *);
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Value func_lower (valVector args, ValueCalc *calc, FuncExtra *);
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Value func_mid (valVector args, ValueCalc *calc, FuncExtra *);
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Value func_proper (valVector args, ValueCalc *calc, FuncExtra *);
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Value func_regexp (valVector args, ValueCalc *calc, FuncExtra *);
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Value func_regexpre (valVector args, ValueCalc *calc, FuncExtra *);
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Value func_replace (valVector args, ValueCalc *calc, FuncExtra *);
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Value func_rept (valVector args, ValueCalc *calc, FuncExtra *);
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Value func_rot (valVector args, ValueCalc *calc, FuncExtra *);
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Value func_right (valVector args, ValueCalc *calc, FuncExtra *);
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Value func_search (valVector args, ValueCalc *calc, FuncExtra *);
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Value func_sleek (valVector args, ValueCalc *calc, FuncExtra *);
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Value func_substitute (valVector args, ValueCalc *calc, FuncExtra *);
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Value func_t (valVector args, ValueCalc *calc, FuncExtra *);
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Value func_text (valVector args, ValueCalc *calc, FuncExtra *);
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Value func_toggle (valVector args, ValueCalc *calc, FuncExtra *);
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Value func_trim (valVector args, ValueCalc *calc, FuncExtra *);
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Value func_upper (valVector args, ValueCalc *calc, FuncExtra *);
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Value func_value (valVector args, ValueCalc *calc, FuncExtra *);
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// registers all text functions
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void RegisterTextFunctions()
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{
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FunctionRepository* repo = FunctionRepository::self();
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Function *f;
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// one-parameter functions
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f = new Function ("CHAR", func_char);
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repo->add (f);
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f = new Function ("CLEAN", func_clean);
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repo->add (f);
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f = new Function ("CODE", func_code);
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repo->add (f);
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f = new Function ("LEN", func_len);
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repo->add (f);
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f = new Function ("LOWER", func_lower);
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repo->add (f);
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f = new Function ("PROPER", func_proper);
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repo->add (f);
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f = new Function ("ROT", func_rot);
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repo->add (f);
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f = new Function ("SLEEK", func_sleek);
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repo->add (f);
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f = new Function ("T", func_t);
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repo->add (f);
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f = new Function ("TOGGLE", func_toggle);
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repo->add (f);
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f = new Function ("TRIM", func_trim);
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repo->add (f);
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f = new Function ("UPPER", func_upper);
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repo->add (f);
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f = new Function ("VALUE", func_value);
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repo->add (f);
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// other functions
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f = new Function ("COMPARE", func_compare);
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f->setParamCount (3);
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repo->add (f);
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f = new Function ("CONCATENATE", func_concatenate);
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f->setParamCount (1, -1);
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f->setAcceptArray ();
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repo->add (f);
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f = new Function ("DOLLAR", func_dollar);
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f->setParamCount (1, 2);
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repo->add (f);
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f = new Function ("EXACT", func_exact);
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f->setParamCount (2);
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repo->add (f);
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f = new Function ("FIND", func_find);
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f->setParamCount (2, 3);
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repo->add (f);
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f = new Function ("FIXED", func_fixed);
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f->setParamCount (1, 3);
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repo->add (f);
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f = new Function ("LEFT", func_left);
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f->setParamCount (2);
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repo->add (f);
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f = new Function ("MID", func_mid);
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f->setParamCount (2, 3);
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repo->add (f);
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f = new Function ("REGEXP", func_regexp);
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f->setParamCount (2, 4);
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repo->add (f);
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f = new Function ("REGEXPRE", func_regexpre);
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f->setParamCount (3);
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repo->add (f);
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f = new Function ("REPLACE", func_replace);
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f->setParamCount (4);
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repo->add (f);
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f = new Function ("REPT", func_rept);
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f->setParamCount (2);
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repo->add (f);
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f = new Function ("RIGHT", func_right);
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f->setParamCount (2);
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repo->add (f);
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f = new Function ("SEARCH", func_search);
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f->setParamCount (2, 3);
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repo->add (f);
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f = new Function ("SUBSTITUTE", func_substitute);
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f->setParamCount (3, 4);
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repo->add (f);
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f = new Function ("TEXT", func_text);
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f->setParamCount (1, 2);
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repo->add (f);
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}
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// Function: CHAR
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Value func_char (valVector args, ValueCalc *calc, FuncExtra *)
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{
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int val = calc->conv()->asInteger (args[0]).asInteger ();
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return Value (TQString (TQChar (val)));
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}
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// Function: CLEAN
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Value func_clean (valVector args, ValueCalc *calc, FuncExtra *)
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{
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TQString str (calc->conv()->asString (args[0]).asString());
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TQString result;
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TQChar c;
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int i;
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int l = str.length();
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for (i = 0; i < l; ++i)
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{
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c = str[i];
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if (c.isPrint())
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result += c;
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}
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return Value (result);
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}
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// Function: CODE
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Value func_code (valVector args, ValueCalc *calc, FuncExtra *)
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{
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TQString str (calc->conv()->asString (args[0]).asString());
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if (str.length() <= 0)
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return Value::errorVALUE();
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return Value (str[0].unicode());
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}
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// Function: COMPARE
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Value func_compare (valVector args, ValueCalc *calc, FuncExtra *)
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{
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int result = 0;
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bool exact = calc->conv()->asBoolean (args[2]).asBoolean();
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TQString s1 = calc->conv()->asString (args[0]).asString();
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TQString s2 = calc->conv()->asString (args[1]).asString();
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if (!exact)
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result = s1.lower().localeAwareCompare(s2.lower());
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else
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result = s1.localeAwareCompare(s2);
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if (result < 0)
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result = -1;
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else if (result > 0)
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result = 1;
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return Value (result);
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}
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void func_concatenate_helper (Value val, ValueCalc *calc,
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TQString& tmp)
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{
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if (val.isArray()) {
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for (unsigned int row = 0; row < val.rows(); ++row)
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for (unsigned int col = 0; col < val.columns(); ++col)
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func_concatenate_helper (val.element (col, row), calc, tmp);
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} else
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tmp += calc->conv()->asString (val).asString();
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}
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// Function: CONCATENATE
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Value func_concatenate (valVector args, ValueCalc *calc, FuncExtra *)
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{
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TQString tmp;
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for (unsigned int i = 0; i < args.count(); ++i)
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func_concatenate_helper (args[i], calc, tmp);
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return Value (tmp);
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}
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// Function: DOLLAR
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Value func_dollar (valVector args, ValueCalc *calc, FuncExtra *)
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{
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// ValueConverter doesn't support money directly, hence we need to
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// use the locale. This code has the same effect as the output
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// of ValueFormatter for money format.
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// This function converts data to double/int, hence it won't support
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// larger precision.
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double value = calc->conv()->asFloat (args[0]).asFloat();
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int precision = 2;
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if (args.count() == 2)
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precision = calc->conv()->asInteger (args[1]).asInteger();
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// do round, because formatMoney doesn't
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value = floor (value * pow (10.0, precision) + 0.5) / pow (10.0, precision);
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TDELocale *locale = calc->conv()->locale();
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TQString s = locale->formatMoney (value, locale->currencySymbol(), precision);
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return Value (s);
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}
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// Function: EXACT
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Value func_exact (valVector args, ValueCalc *calc, FuncExtra *)
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{
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TQString s1 = calc->conv()->asString (args[0]).asString();
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TQString s2 = calc->conv()->asString (args[1]).asString();
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bool exact = (s1 == s2);
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return Value (exact);
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}
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// Function: FIND
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Value func_find (valVector args, ValueCalc *calc, FuncExtra *)
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{
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TQString find_text, within_text;
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int start_num = 1;
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find_text = calc->conv()->asString (args[0]).asString();
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within_text = calc->conv()->asString (args[1]).asString();
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if (args.count() == 3)
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start_num = calc->conv()->asInteger (args[2]).asInteger();
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// conforms to Excel behaviour
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if (start_num <= 0) return Value::errorVALUE();
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if (start_num > (int)within_text.length()) return Value::errorVALUE();
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int pos = within_text.find (find_text, start_num - 1);
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if( pos < 0 ) return Value::errorNA();
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return Value (pos + 1);
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}
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// Function: FIXED
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Value func_fixed (valVector args, ValueCalc *calc, FuncExtra *)
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{
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// uses double, hence won't support big precision
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int decimals = 2;
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bool no_commas = false;
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double number = calc->conv()->asFloat (args[0]).asFloat();
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if (args.count() > 1)
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decimals = calc->conv()->asInteger (args[1]).asInteger();
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if (args.count() == 3)
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no_commas = calc->conv()->asBoolean (args[2]).asBoolean();
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TQString result;
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TDELocale *locale = calc->conv()->locale();
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// unfortunately, we can't just use TDELocale::formatNumber because
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// * if decimals < 0, number is rounded
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// * if no_commas is true, thousand separators shouldn't show up
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if( decimals < 0 )
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{
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decimals = -decimals;
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number = floor( number/pow(10.0,decimals)+0.5 ) * pow(10.0,decimals);
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decimals = 0;
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}
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bool neg = number < 0;
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result = TQString::number( neg ? -number:number, 'f', decimals );
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int pos = result.find('.');
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if (pos == -1) pos = result.length();
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else result.replace(pos, 1, locale->decimalSymbol());
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if( !no_commas )
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while (0 < (pos -= 3))
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result.insert(pos, locale->thousandsSeparator());
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result.prepend( neg ? locale->negativeSign():
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locale->positiveSign() );
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return Value (result);
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}
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// Function: LEFT
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Value func_left (valVector args, ValueCalc *calc, FuncExtra *)
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{
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TQString str = calc->conv()->asString (args[0]).asString();
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int nb = 1;
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if (args.count() == 2)
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nb = calc->conv()->asInteger (args[1]).asInteger();
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return Value (str.left (nb));
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}
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// Function: LEN
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Value func_len (valVector args, ValueCalc *calc, FuncExtra *)
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{
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int nb = calc->conv()->asString (args[0]).asString().length();
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return Value (nb);
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}
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// Function: LOWER
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Value func_lower (valVector args, ValueCalc *calc, FuncExtra *)
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{
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return Value (calc->conv()->asString (args[0]).asString().lower());
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}
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// Function: MID
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Value func_mid (valVector args, ValueCalc *calc, FuncExtra *)
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{
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TQString str = calc->conv()->asString (args[0]).asString();
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int pos = calc->conv()->asInteger (args[1]).asInteger();
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uint len = 0xffffffff;
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if (args.count() == 3)
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len = (uint) calc->conv()->asInteger (args[2]).asInteger();
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// Excel compatible
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pos--;
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return Value (str.mid (pos, len));
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}
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// Function: PROPER
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Value func_proper (valVector args, ValueCalc *calc, FuncExtra *)
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{
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TQString str = calc->conv()->asString (args[0]).asString().lower();
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TQChar f;
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bool first = true;
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for (unsigned int i = 0; i < str.length(); ++i)
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{
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if (first)
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{
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f = str[i];
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if (f.isNumber())
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continue;
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f = f.upper();
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str[i] = f;
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first = false;
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continue;
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}
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if (str[i] == ' ' || str[i] == '-')
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first = true;
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}
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return Value (str);
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}
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// Function: REGEXP
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Value func_regexp (valVector args, ValueCalc *calc, FuncExtra *)
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{
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// ensure that we got a valid regular expression
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TQRegExp exp (calc->conv()->asString (args[1]).asString());
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if (!exp.isValid ())
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return Value::errorVALUE();
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TQString s = calc->conv()->asString (args[0]).asString();
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TQString defText;
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if (args.count() > 2)
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defText = calc->conv()->asString (args[2]).asString();
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int bkref = 0;
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if (args.count() == 4)
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bkref = calc->conv()->asInteger (args[3]).asInteger();
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if (bkref < 0) // strange back-reference
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return Value::errorVALUE();
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TQString returnValue;
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int pos = exp.search (s);
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if (pos == -1)
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returnValue = defText;
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else
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returnValue = exp.cap (bkref);
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return Value (returnValue);
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}
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// Function: REGEXPRE
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Value func_regexpre (valVector args, ValueCalc *calc, FuncExtra *)
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{
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// ensure that we got a valid regular expression
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TQRegExp exp (calc->conv()->asString (args[1]).asString());
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if (!exp.isValid ())
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return Value::errorVALUE();
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TQString s = calc->conv()->asString (args[0]).asString();
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TQString str = calc->conv()->asString (args[2]).asString();
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int pos = 0;
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while ((pos = exp.search (s, pos)) != -1)
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{
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int i = exp.matchedLength();
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s = s.replace (pos, i, str);
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pos += str.length();
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}
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return Value (s);
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}
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// Function: REPLACE
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Value func_replace (valVector args, ValueCalc *calc, FuncExtra *)
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{
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TQString text = calc->conv()->asString (args[0]).asString();
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int pos = calc->conv()->asInteger (args[1]).asInteger();
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int len = calc->conv()->asInteger (args[2]).asInteger();
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TQString new_text = calc->conv()->asString (args[3]).asString();
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if (pos < 0) pos = 0;
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TQString result = text.replace (pos-1, len, new_text);
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return Value (result);
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}
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// Function: REPT
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Value func_rept (valVector args, ValueCalc *calc, FuncExtra *)
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{
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TQString s = calc->conv()->asString (args[0]).asString();
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int nb = calc->conv()->asInteger (args[1]).asInteger();
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TQString result;
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for (int i = 0; i < nb; i++) result += s;
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return Value (result);
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}
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// Function: RIGHT
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Value func_right (valVector args, ValueCalc *calc, FuncExtra *)
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{
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TQString str = calc->conv()->asString (args[0]).asString();
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int nb = 1;
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if (args.count() == 2)
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nb = calc->conv()->asInteger (args[1]).asInteger();
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return Value (str.right (nb));
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}
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// Function: ROT
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Value func_rot (valVector args, ValueCalc *calc, FuncExtra *)
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{
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TQString text = calc->conv()->asString (args[0]).asString();
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for( unsigned i=0; i<text.length(); i++ )
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{
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unsigned c = text[i].upper().unicode();
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if( ( c >= 'A' ) && ( c <= 'M' ) )
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text[i] = TQChar( text[i].unicode() + 13);
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if( ( c >= 'N' ) && ( c <= 'Z' ) )
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text[i] = TQChar( text[i].unicode() - 13);
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}
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return Value (text);
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}
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// Function: SEARCH
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Value func_search (valVector args, ValueCalc *calc, FuncExtra *)
|
|
{
|
|
TQString find_text = calc->conv()->asString (args[0]).asString();
|
|
TQString within_text = calc->conv()->asString (args[1]).asString();
|
|
int start_num = 1;
|
|
if (args.count() == 3)
|
|
start_num = calc->conv()->asInteger (args[2]).asInteger();
|
|
|
|
// conforms to Excel behaviour
|
|
if (start_num <= 0) return Value::errorVALUE();
|
|
if (start_num > (int)within_text.length()) return Value::errorVALUE();
|
|
|
|
// use globbing feature of TQRegExp
|
|
TQRegExp regex( find_text, false, true );
|
|
int pos = within_text.find( regex, start_num-1 );
|
|
if( pos < 0 ) return Value::errorNA();
|
|
|
|
return Value (pos + 1);
|
|
}
|
|
|
|
// Function: SLEEK
|
|
Value func_sleek (valVector args, ValueCalc *calc, FuncExtra *)
|
|
{
|
|
TQString str = calc->conv()->asString (args[0]).asString();
|
|
TQString result;
|
|
TQChar c;
|
|
int i;
|
|
int l = str.length();
|
|
|
|
for (i = 0; i < l; ++i)
|
|
{
|
|
c = str[i];
|
|
if (!c.isSpace())
|
|
result += c;
|
|
}
|
|
|
|
return Value (result);
|
|
}
|
|
|
|
// Function: SUBSTITUTE
|
|
Value func_substitute (valVector args, ValueCalc *calc, FuncExtra *)
|
|
{
|
|
int num = 1;
|
|
bool all = true;
|
|
|
|
if (args.count() == 4)
|
|
{
|
|
num = calc->conv()->asInteger (args[3]).asInteger();
|
|
all = false;
|
|
}
|
|
|
|
TQString text = calc->conv()->asString (args[0]).asString();
|
|
TQString old_text = calc->conv()->asString (args[1]).asString();
|
|
TQString new_text = calc->conv()->asString (args[2]).asString();
|
|
|
|
if( num <= 0 ) return Value::errorVALUE();
|
|
if (old_text.length() == 0) return Value (text);
|
|
|
|
TQString result = text;
|
|
|
|
int p = result.find (old_text);
|
|
while ((p != -1) && (num > 0))
|
|
{
|
|
result.replace( p, old_text.length(), new_text );
|
|
// find another location, starting straight after the replaced text
|
|
p = result.find (old_text, p + new_text.length());
|
|
if( !all ) num--;
|
|
}
|
|
|
|
return Value (result);
|
|
}
|
|
|
|
// Function: T
|
|
Value func_t (valVector args, ValueCalc *calc, FuncExtra *)
|
|
{
|
|
return calc->conv()->asString (args[0]);
|
|
}
|
|
|
|
// Function: TEXT
|
|
Value func_text (valVector args, ValueCalc *calc, FuncExtra *)
|
|
{
|
|
//Currently the same as the T function ...
|
|
//Second parameter is format_text. It is currently ignored.
|
|
return calc->conv()->asString (args[0]);
|
|
}
|
|
|
|
// Function: TOGGLE
|
|
Value func_toggle (valVector args, ValueCalc *calc, FuncExtra *)
|
|
{
|
|
TQString str = calc->conv()->asString (args[0]).asString();
|
|
int i;
|
|
int l = str.length();
|
|
|
|
for (i = 0; i < l; ++i)
|
|
{
|
|
TQChar c = str[i];
|
|
TQChar lc = c.lower();
|
|
TQChar uc = c.upper();
|
|
|
|
if (c == lc) // it is in lowercase
|
|
str[i] = c.upper();
|
|
else if (c == uc) // it is in uppercase
|
|
str[i] = c.lower();
|
|
}
|
|
|
|
return Value (str);
|
|
}
|
|
|
|
// Function: TRIM
|
|
Value func_trim (valVector args, ValueCalc *calc, FuncExtra *)
|
|
{
|
|
return Value (
|
|
calc->conv()->asString (args[0]).asString().simplifyWhiteSpace());
|
|
}
|
|
|
|
// Function: UPPER
|
|
Value func_upper (valVector args, ValueCalc *calc, FuncExtra *)
|
|
{
|
|
return Value (calc->conv()->asString (args[0]).asString().upper());
|
|
}
|
|
|
|
// Function: VALUE
|
|
Value func_value (valVector args, ValueCalc *calc, FuncExtra *)
|
|
{
|
|
// same as the N function
|
|
return calc->conv()->asFloat (args[0]);
|
|
}
|