1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
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( std::u16string_view sKeyword );
};
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
