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
|
// Copyright 2014 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
#ifndef XFA_FXFA_FM2JS_XFA_LEXER_H_
#define XFA_FXFA_FM2JS_XFA_LEXER_H_
#include <memory>
#include "core/fxcrt/include/fx_string.h"
#include "xfa/fxfa/fm2js/xfa_error.h"
enum XFA_FM_TOKEN {
TOKand,
TOKlparen,
TOKrparen,
TOKmul,
TOKplus,
TOKcomma,
TOKminus,
TOKdot,
TOKdiv,
TOKlt,
TOKassign,
TOKgt,
TOKlbracket,
TOKrbracket,
TOKor,
TOKdotscream,
TOKdotstar,
TOKdotdot,
TOKle,
TOKne,
TOKeq,
TOKge,
TOKdo,
TOKkseq,
TOKksge,
TOKksgt,
TOKif,
TOKin,
TOKksle,
TOKkslt,
TOKksne,
TOKksor,
TOKnull,
TOKbreak,
TOKksand,
TOKend,
TOKeof,
TOKfor,
TOKnan,
TOKksnot,
TOKvar,
TOKthen,
TOKelse,
TOKexit,
TOKdownto,
TOKreturn,
TOKinfinity,
TOKendwhile,
TOKforeach,
TOKendfunc,
TOKelseif,
TOKwhile,
TOKendfor,
TOKthrow,
TOKstep,
TOKupto,
TOKcontinue,
TOKfunc,
TOKendif,
TOKstar,
TOKidentifier,
TOKunderscore,
TOKdollar,
TOKexclamation,
TOKcall,
TOKstring,
TOKnumber,
TOKreserver
};
struct XFA_FMKeyword {
XFA_FM_TOKEN m_type;
uint32_t m_uHash;
const FX_WCHAR* m_keyword;
};
const FX_WCHAR* XFA_FM_KeywordToString(XFA_FM_TOKEN op);
class CXFA_FMToken {
public:
CXFA_FMToken();
explicit CXFA_FMToken(uint32_t uLineNum);
CFX_WideStringC m_wstring;
XFA_FM_TOKEN m_type;
uint32_t m_uLinenum;
};
class CXFA_FMLexer {
public:
CXFA_FMLexer(const CFX_WideStringC& wsFormcalc, CXFA_FMErrorInfo* pErrorInfo);
CXFA_FMToken* NextToken();
uint32_t Number(CXFA_FMToken* t, const FX_WCHAR* p, const FX_WCHAR*& pEnd);
uint32_t String(CXFA_FMToken* t, const FX_WCHAR* p, const FX_WCHAR*& pEnd);
uint32_t Identifiers(CXFA_FMToken* t,
const FX_WCHAR* p,
const FX_WCHAR*& pEnd);
void Comment(const FX_WCHAR* p, const FX_WCHAR*& pEnd);
XFA_FM_TOKEN IsKeyword(const CFX_WideStringC& p);
void SetCurrentLine(uint32_t line) { m_uCurrentLine = line; }
void SetToken(CXFA_FMToken* pToken) {
if (m_pToken.get() != pToken)
m_pToken.reset(pToken);
}
const FX_WCHAR* SavePos() { return m_ptr; }
void RestorePos(const FX_WCHAR* pPos) { m_ptr = pPos; }
void Error(XFA_FM_ERRMSG msg, ...);
FX_BOOL HasError() const;
protected:
CXFA_FMToken* Scan();
const FX_WCHAR* m_ptr;
uint32_t m_uCurrentLine;
std::unique_ptr<CXFA_FMToken> m_pToken;
CXFA_FMErrorInfo* m_pErrorInfo;
};
#endif // XFA_FXFA_FM2JS_XFA_LEXER_H_
|
