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
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
|
/*
===========================================================================
Copyright (C) 1999-2005 Id Software, Inc.
This file is part of Quake III Arena source code.
Quake III Arena source code is free software; you can redistribute it
and/or modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the License,
or (at your option) any later version.
Quake III Arena source code 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with Quake III Arena source code; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
===========================================================================
*/
/*****************************************************************************
* name: l_script.h
*
* desc: lexicographical parser
*
* $Archive: /source/code/botlib/l_script.h $
*
*****************************************************************************/
//undef if binary numbers of the form 0b... or 0B... are not allowed
#define BINARYNUMBERS
//undef if not using the token.intvalue and token.floatvalue
#define NUMBERVALUE
//use dollar sign also as punctuation
#define DOLLAR
//maximum token length
#define MAX_TOKEN 1024
#if defined(BSPC) && !defined(QDECL)
#define QDECL
#endif
//script flags
#define SCFL_NOERRORS 0x0001
#define SCFL_NOWARNINGS 0x0002
#define SCFL_NOSTRINGWHITESPACES 0x0004
#define SCFL_NOSTRINGESCAPECHARS 0x0008
#define SCFL_PRIMITIVE 0x0010
#define SCFL_NOBINARYNUMBERS 0x0020
#define SCFL_NONUMBERVALUES 0x0040
//token types
#define TT_STRING 1 // string
#define TT_LITERAL 2 // literal
#define TT_NUMBER 3 // number
#define TT_NAME 4 // name
#define TT_PUNCTUATION 5 // punctuation
//string sub type
//---------------
// the length of the string
//literal sub type
//----------------
// the ASCII code of the literal
//number sub type
//---------------
#define TT_DECIMAL 0x0008 // decimal number
#define TT_HEX 0x0100 // hexadecimal number
#define TT_OCTAL 0x0200 // octal number
#ifdef BINARYNUMBERS
#define TT_BINARY 0x0400 // binary number
#endif //BINARYNUMBERS
#define TT_FLOAT 0x0800 // floating point number
#define TT_INTEGER 0x1000 // integer number
#define TT_LONG 0x2000 // long number
#define TT_UNSIGNED 0x4000 // unsigned number
//punctuation sub type
//--------------------
#define P_RSHIFT_ASSIGN 1
#define P_LSHIFT_ASSIGN 2
#define P_PARMS 3
#define P_PRECOMPMERGE 4
#define P_LOGIC_AND 5
#define P_LOGIC_OR 6
#define P_LOGIC_GEQ 7
#define P_LOGIC_LEQ 8
#define P_LOGIC_EQ 9
#define P_LOGIC_UNEQ 10
#define P_MUL_ASSIGN 11
#define P_DIV_ASSIGN 12
#define P_MOD_ASSIGN 13
#define P_ADD_ASSIGN 14
#define P_SUB_ASSIGN 15
#define P_INC 16
#define P_DEC 17
#define P_BIN_AND_ASSIGN 18
#define P_BIN_OR_ASSIGN 19
#define P_BIN_XOR_ASSIGN 20
#define P_RSHIFT 21
#define P_LSHIFT 22
#define P_POINTERREF 23
#define P_CPP1 24
#define P_CPP2 25
#define P_MUL 26
#define P_DIV 27
#define P_MOD 28
#define P_ADD 29
#define P_SUB 30
#define P_ASSIGN 31
#define P_BIN_AND 32
#define P_BIN_OR 33
#define P_BIN_XOR 34
#define P_BIN_NOT 35
#define P_LOGIC_NOT 36
#define P_LOGIC_GREATER 37
#define P_LOGIC_LESS 38
#define P_REF 39
#define P_COMMA 40
#define P_SEMICOLON 41
#define P_COLON 42
#define P_QUESTIONMARK 43
#define P_PARENTHESESOPEN 44
#define P_PARENTHESESCLOSE 45
#define P_BRACEOPEN 46
#define P_BRACECLOSE 47
#define P_SQBRACKETOPEN 48
#define P_SQBRACKETCLOSE 49
#define P_BACKSLASH 50
#define P_PRECOMP 51
#define P_DOLLAR 52
//name sub type
//-------------
// the length of the name
//punctuation
typedef struct punctuation_s
{
char *p; //punctuation character(s)
int n; //punctuation indication
struct punctuation_s *next; //next punctuation
} punctuation_t;
//token
typedef struct token_s
{
char string[MAX_TOKEN]; //available token
int type; //last read token type
int subtype; //last read token sub type
#ifdef NUMBERVALUE
unsigned long int intvalue; //integer value
long double floatvalue; //floating point value
#endif //NUMBERVALUE
char *whitespace_p; //start of white space before token
char *endwhitespace_p; //start of white space before token
int line; //line the token was on
int linescrossed; //lines crossed in white space
struct token_s *next; //next token in chain
} token_t;
//script file
typedef struct script_s
{
char filename[1024]; //file name of the script
char *buffer; //buffer containing the script
char *script_p; //current pointer in the script
char *end_p; //pointer to the end of the script
char *lastscript_p; //script pointer before reading token
char *whitespace_p; //begin of the white space
char *endwhitespace_p; //end of the white space
int length; //length of the script in bytes
int line; //current line in script
int lastline; //line before reading token
int tokenavailable; //set by UnreadLastToken
int flags; //several script flags
punctuation_t *punctuations; //the punctuations used in the script
punctuation_t **punctuationtable;
token_t token; //available token
struct script_s *next; //next script in a chain
} script_t;
//read a token from the script
int PS_ReadToken(script_t *script, token_t *token);
//expect a certain token
int PS_ExpectTokenString(script_t *script, char *string);
//expect a certain token type
int PS_ExpectTokenType(script_t *script, int type, int subtype, token_t *token);
//expect a token
int PS_ExpectAnyToken(script_t *script, token_t *token);
//returns true when the token is available
int PS_CheckTokenString(script_t *script, char *string);
//returns true an reads the token when a token with the given type is available
int PS_CheckTokenType(script_t *script, int type, int subtype, token_t *token);
//skip tokens until the given token string is read
int PS_SkipUntilString(script_t *script, char *string);
//unread the last token read from the script
void PS_UnreadLastToken(script_t *script);
//unread the given token
void PS_UnreadToken(script_t *script, token_t *token);
//returns the next character of the read white space, returns NULL if none
char PS_NextWhiteSpaceChar(script_t *script);
//remove any leading and trailing double quotes from the token
void StripDoubleQuotes(char *string);
//remove any leading and trailing single quotes from the token
void StripSingleQuotes(char *string);
//read a possible signed integer
signed long int ReadSignedInt(script_t *script);
//read a possible signed floating point number
long double ReadSignedFloat(script_t *script);
//set an array with punctuations, NULL restores default C/C++ set
void SetScriptPunctuations(script_t *script, punctuation_t *p);
//set script flags
void SetScriptFlags(script_t *script, int flags);
//get script flags
int GetScriptFlags(script_t *script);
//reset a script
void ResetScript(script_t *script);
//returns true if at the end of the script
int EndOfScript(script_t *script);
//returns a pointer to the punctuation with the given number
char *PunctuationFromNum(script_t *script, int num);
//load a script from the given file at the given offset with the given length
script_t *LoadScriptFile(const char *filename);
//load a script from the given memory with the given length
script_t *LoadScriptMemory(char *ptr, int length, char *name);
//free a script
void FreeScript(script_t *script);
//set the base folder to load files from
void PS_SetBaseFolder(char *path);
//print a script error with filename and line number
void QDECL ScriptError(script_t *script, char *str, ...);
//print a script warning with filename and line number
void QDECL ScriptWarning(script_t *script, char *str, ...);
|
