Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 137 insertions, 0 deletions

diff --git a/basic/source/inc/token.hxx b/basic/source/inc/token.hxx
new file mode 100644
index 000000000..4230ff585
--- /dev/null
+++ b/basic/source/inc/token.hxx
@@ -0,0 +1,137 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#pragma once
+
+#include "scanner.hxx"
+
+// The tokenizer is stand-alone, i. e. he can be used from everywhere.
+// A BASIC-instance is necessary for error messages. Without BASIC the
+// errors are only counted. The BASIC is also necessary when an advanced
+// SBX-variable shall be used for recognition of data types etc.
+
+
+enum SbiToken {
+    NIL = 0,
+    // tokens between 0x20 and 0x3F are literals:
+    LPAREN = '(', RPAREN = ')', COMMA = ',', DOT = '.', EXCLAM = '!',
+    HASH = '#', SEMICOLON = ';',
+
+    // commands:
+    FIRSTKWD = 0x40,
+    AS = FIRSTKWD, ALIAS, ASSIGN,
+    CALL, CASE, CLOSE, COMPARE, CONST_,
+    DECLARE, DIM, DO,
+
+    // in the order of the data type enums!
+    DEFINT, DEFLNG, DEFSNG, DEFDBL, DEFCUR, DEFDATE, DEFSTR, DEFOBJ,
+    DEFERR, DEFBOOL, DEFVAR,
+    // in the order of the data type enums!
+    DATATYPE1,
+    TINTEGER = DATATYPE1,
+    TLONG, TSINGLE, TDOUBLE, TCURRENCY, TDATE, TSTRING, TOBJECT,
+    ERROR_, TBOOLEAN, TVARIANT, TBYTE,
+    DATATYPE2 = TBYTE,
+
+    EACH, ELSE, ELSEIF, END, ERASE, EXIT,
+    FOR, FUNCTION,
+    GET, GLOBAL, GOSUB, GOTO,
+    IF, IN_, INPUT,
+    LET, LINE, LINEINPUT, LOCAL, LOOP, LPRINT, LSET,
+    NAME, NEW, NEXT,
+    ON, OPEN, OPTION, ATTRIBUTE, IMPLEMENTS,
+    PRINT, PRIVATE, PROPERTY, PUBLIC,
+    REDIM, REM, RESUME, RETURN, RSET,
+    SELECT, SET, SHARED, STATIC, STEP, STOP, SUB,
+    TEXT, THEN, TO, TYPE, ENUM,
+    UNTIL,
+    WEND, WHILE, WITH, WRITE,
+    ENDENUM, ENDIF, ENDFUNC, ENDPROPERTY, ENDSUB, ENDTYPE, ENDSELECT, ENDWITH,
+    // end of all keywords
+    LASTKWD = ENDWITH,
+    // statement end
+    EOS, EOLN,
+    // operators:
+    EXPON, NEG, MUL,
+    DIV, IDIV, MOD, PLUS, MINUS,
+    EQ, NE, LT, GT, LE, GE,
+    NOT, AND, OR, XOR, EQV,
+    IMP, CAT, LIKE, IS, TYPEOF,
+    // miscellaneous:
+    FIRSTEXTRA,
+    NUMBER=FIRSTEXTRA, FIXSTRING, SYMBOL, CDECL_, BYVAL, BYREF,
+    OUTPUT, RANDOM, APPEND, BINARY, ACCESS,
+    LOCK, READ, PRESERVE, BASE, ANY, LIB, OPTIONAL_, PTRSAFE,
+    BASIC_EXPLICIT, COMPATIBLE, CLASSMODULE, PARAMARRAY, WITHEVENTS,
+
+    // from here there are JavaScript-tokens (same enum so that same type)
+    FIRSTJAVA,
+    JS_BREAK=FIRSTJAVA, JS_CONTINUE, JS_FOR, JS_FUNCTION, JS_IF, JS_NEW,
+    JS_RETURN, JS_THIS, JS_VAR, JS_WHILE, JS_WITH,
+
+    // JavaScript-operators
+    // _ASS_ = Assignment
+    JS_COMMA, JS_ASSIGNMENT, JS_ASS_PLUS, JS_ASS_MINUS, JS_ASS_MUL,
+    JS_ASS_DIV, JS_ASS_MOD, JS_ASS_LSHIFT, JS_ASS_RSHIFT, JS_ASS_RSHIFT_Z,
+    JS_ASS_AND, JS_ASS_XOR, JS_ASS_OR,
+    JS_COND_QUEST, JS_COND_SEL, JS_LOG_OR, JS_LOG_AND, JS_BIT_OR,
+    JS_BIT_XOR, JS_BIT_AND, JS_EQ, JS_NE, JS_LT, JS_LE,
+    JS_GT, JS_GE, JS_LSHIFT, JS_RSHIFT, JS_RSHIFT_Z,
+    JS_PLUS, JS_MINUS, JS_MUL, JS_DIV, JS_MOD, JS_LOG_NOT, JS_BIT_NOT,
+    JS_INC, JS_DEC, JS_LPAREN, JS_RPAREN, JS_LINDEX, JS_RINDEX
+    , VBASUPPORT
+};
+
+class SbiTokenizer : public SbiScanner {
+protected:
+    SbiToken eCurTok;
+    SbiToken ePush;
+    sal_uInt16  nPLine, nPCol1, nPCol2; // pushback location
+    bool bEof;
+    bool bEos;
+    bool bAs;                       // last keyword was AS
+    bool bErrorIsSymbol;            // Handle Error token as Symbol, not keyword
+public:
+    SbiTokenizer( const OUString&, StarBASIC* = nullptr );
+
+    bool IsEof() const         { return bEof; }
+    bool IsEos() const         { return bEos; }
+
+    void  Push( SbiToken );
+    const OUString& Symbol( SbiToken );   // reconversion
+
+    SbiToken Peek();                    // read the next token
+    SbiToken Next();                    // read a token
+    bool MayBeLabel( bool= false );
+
+    void Error( ErrCode c ) { GenError( c ); }
+    void Error( ErrCode, SbiToken );
+    void Error( ErrCode, const OUString &);
+
+    static bool IsEoln( SbiToken t )
+        { return t == EOS || t == EOLN || t == REM; }
+    static bool IsKwd( SbiToken t )
+        { return t >= FIRSTKWD && t <= LASTKWD; }
+    static bool IsExtra( SbiToken t )
+        { return t >= FIRSTEXTRA; }
+    static OUString GetKeywordCase( const OUString& sKeyword );
+};
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */