comparison: tokenizer.h
tokenizer.h
- changeset 58
- 789df543d0c3
- child 62
- aae5facf9fc5
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| 57:de75d868bc0b | 58:789df543d0c3 |
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| 1 /* | |
| 2 * libtu/tokenizer.h | |
| 3 * | |
| 4 * Copyright (c) Tuomo Valkonen 1999-2002. | |
| 5 * | |
| 6 * You may distribute and modify this library under the terms of either | |
| 7 * the Clarified Artistic License or the GNU LGPL, version 2.1 or later. | |
| 8 */ | |
| 9 | |
| 10 #ifndef LIBTU_TOKENIZER_H | |
| 11 #define LIBTU_TOKENIZER_H | |
| 12 | |
| 13 #include <stdio.h> | |
| 14 #include "types.h" | |
| 15 | |
| 16 | |
| 17 #define TOK_SET_BOOL(TOK, VAL) {(TOK)->type=TOK_BOOL; (TOK)->u.bval=VAL;} | |
| 18 #define TOK_SET_LONG(TOK, VAL) {(TOK)->type=TOK_LONG; (TOK)->u.lval=VAL;} | |
| 19 #define TOK_SET_DOUBLE(TOK, VAL) {(TOK)->type=TOK_DOUBLE; (TOK)->u.dval=VAL;} | |
| 20 #define TOK_SET_CHAR(TOK, VAL) {(TOK)->type=TOK_CHAR; (TOK)->u.cval=VAL;} | |
| 21 #define TOK_SET_STRING(TOK, VAL) {(TOK)->type=TOK_STRING; (TOK)->u.sval=VAL;} | |
| 22 #define TOK_SET_IDENT(TOK, VAL) {(TOK)->type=TOK_IDENT; (TOK)->u.sval=VAL;} | |
| 23 #define TOK_SET_COMMENT(TOK, VAL) {(TOK)->type=TOK_COMMENT; (TOK)->u.sval=VAL;} | |
| 24 #define TOK_SET_OP(TOK, VAL) {(TOK)->type=TOK_OP; (TOK)->u.opval=VAL;} | |
| 25 | |
| 26 #define TOK_TYPE(TOK) ((TOK)->type) | |
| 27 #define TOK_BOOL_VAL(TOK) ((TOK)->u.bval) | |
| 28 #define TOK_LONG_VAL(TOK) ((TOK)->u.lval) | |
| 29 #define TOK_DOUBLE_VAL(TOK) ((TOK)->u.dval) | |
| 30 #define TOK_CHAR_VAL(TOK) ((TOK)->u.cval) | |
| 31 #define TOK_STRING_VAL(TOK) ((TOK)->u.sval) | |
| 32 #define TOK_IDENT_VAL(TOK) ((TOK)->u.sval) | |
| 33 #define TOK_COMMENT_VAL(TOK) ((TOK)->u.sval) | |
| 34 #define TOK_OP_VAL(TOK) ((TOK)->u.opval) | |
| 35 | |
| 36 #define TOK_IS_INVALID(TOK) ((TOK)->type==TOK_INVALID) | |
| 37 #define TOK_IS_BOOL(TOK) ((TOK)->type==TOK_BOOL) | |
| 38 #define TOK_IS_LONG(TOK) ((TOK)->type==TOK_LONG) | |
| 39 #define TOK_IS_DOUBLE(TOK) ((TOK)->type==TOK_DOUBLE) | |
| 40 #define TOK_IS_CHAR(TOK) ((TOK)->type==TOK_CHAR) | |
| 41 #define TOK_IS_STRING(TOK) ((TOK)->type==TOK_STRING) | |
| 42 #define TOK_IS_IDENT(TOK) ((TOK)->type==TOK_IDENT) | |
| 43 #define TOK_IS_COMMENT(TOK) ((TOK)->type==TOK_COMMENT) | |
| 44 #define TOK_IS_OP(TOK) ((TOK)->type==TOK_OP) | |
| 45 | |
| 46 #define TOK_OP_IS(TOK, OP) ((TOK)->type==TOK_OP && (TOK)->u.opval==(OP)) | |
| 47 | |
| 48 #define TOK_TAKE_STRING_VAL(TOK) ((TOK)->type=TOK_INVALID, (TOK)->u.sval) | |
| 49 #define TOK_TAKE_IDENT_VAL(TOK) ((TOK)->type=TOK_INVALID, (TOK)->u.sval) | |
| 50 #define TOK_TAKE_COMMENT_VAL(TOK) ((TOK)->type=TOK_INVALID, (TOK)->u.sval) | |
| 51 | |
| 52 | |
| 53 enum{ | |
| 54 TOK_INVALID=0, | |
| 55 TOK_LONG='l', | |
| 56 TOK_DOUBLE='d', | |
| 57 TOK_CHAR='c', | |
| 58 TOK_STRING='s', | |
| 59 TOK_IDENT='i', | |
| 60 TOK_BOOL='b', | |
| 61 TOK_COMMENT='#', | |
| 62 TOK_OP='+' | |
| 63 }; | |
| 64 | |
| 65 | |
| 66 enum{ | |
| 67 #define OP2(X,Y) ((X)|((Y)<<8)) | |
| 68 #define OP3(X,Y,Z) ((X)|((Y)<<8)|((Z)<<16)) | |
| 69 | |
| 70 OP_L_PAR= '(', OP_R_PAR= ')', OP_L_BRK= '[', OP_R_BRK= ']', | |
| 71 OP_L_BRC= '{', OP_R_BRC= '}', OP_COMMA= ',', OP_SCOLON= ';', | |
| 72 | |
| 73 OP_PLUS= '+', OP_MINUS= '-', OP_MUL= '*', OP_DIV= '/', | |
| 74 OP_MOD= '%', OP_POW= '^', OP_OR= '|', OP_AND= '&', | |
| 75 /*OP_NOT= '~',*/ OP_NOT= '!', OP_ASGN= '=', OP_LT= '<', | |
| 76 OP_GT= '>', OP_DOT= '.', OP_COLON= ':', OP_QMARK= '?', | |
| 77 OP_AT= '@', | |
| 78 OP_NEXTLINE='\n',OP_EOF= -1, | |
| 79 | |
| 80 OP_INC= OP2('+','+'), OP_DEC= OP2('-','-'), | |
| 81 OP_LSHIFT= OP2('<','<'), OP_RSHIFT= OP2('>','>'), | |
| 82 OP_AS_INC= OP2('+','='), OP_AS_DEC= OP2('-','='), | |
| 83 OP_AS_MUL= OP2('*','='), OP_AS_DIV= OP2('/','='), | |
| 84 OP_AS_MOD= OP2('%','='), OP_AS_POW= OP2('^','='), | |
| 85 | |
| 86 /* AS_OR= OP2('|','='), AS_AND= OP2('&','='), */ | |
| 87 OP_EQ= OP2('=','='), OP_NE= OP2('!','='), | |
| 88 OP_LE= OP2('<','='), OP_GE= OP2('>','=') | |
| 89 | |
| 90 /* L_AND= OP2('&','&'), L_OR= OP2('|','|'), | |
| 91 L_XOR= OP2('^','^'), */ | |
| 92 | |
| 93 /* AsLShift= OP3('<','<','='), | |
| 94 AsRShift= OP3('>','>','='), */ | |
| 95 | |
| 96 #undef OP2 | |
| 97 #undef OP3 | |
| 98 }; | |
| 99 | |
| 100 | |
| 101 typedef struct{ | |
| 102 int type; | |
| 103 int line; | |
| 104 union{ | |
| 105 bool bval; | |
| 106 long lval; | |
| 107 double dval; | |
| 108 char cval; | |
| 109 char *sval; | |
| 110 int opval; | |
| 111 } u; | |
| 112 } Token; | |
| 113 | |
| 114 #define TOK_INIT {0, 0, {0}} | |
| 115 | |
| 116 | |
| 117 extern void tok_free(Token*tok); | |
| 118 extern void tok_init(Token*tok); | |
| 119 | |
| 120 | |
| 121 /* */ | |
| 122 | |
| 123 | |
| 124 enum{ | |
| 125 TOKZ_IGNORE_NEXTLINE=0x1, | |
| 126 TOKZ_READ_COMMENTS=0x2, | |
| 127 TOKZ_PARSER_INDENT_MODE=0x04, | |
| 128 TOKZ_ERROR_TOLERANT=0x8, | |
| 129 TOKZ_READ_FROM_BUFFER=0x10, | |
| 130 TOKZ_DEFAULT_OPTION=0x20 | |
| 131 }; | |
| 132 | |
| 133 | |
| 134 enum{ | |
| 135 E_TOKZ_UNEXPECTED_EOF=1, | |
| 136 E_TOKZ_UNEXPECTED_EOL, | |
| 137 E_TOKZ_EOL_EXPECTED, | |
| 138 E_TOKZ_INVALID_CHAR, | |
| 139 E_TOKZ_TOOBIG, | |
| 140 E_TOKZ_NUMFMT, | |
| 141 E_TOKZ_NUM_JUNK, | |
| 142 E_TOKZ_NOTINT, | |
| 143 E_TOKZ_RANGE, | |
| 144 E_TOKZ_MULTICHAR, | |
| 145 | |
| 146 E_TOKZ_TOKEN_LIMIT, | |
| 147 E_TOKZ_UNKNOWN_OPTION, | |
| 148 E_TOKZ_SYNTAX, | |
| 149 E_TOKZ_INVALID_ARGUMENT, | |
| 150 E_TOKZ_EOS_EXPECTED, | |
| 151 E_TOKZ_TOO_FEW_ARGS, | |
| 152 E_TOKZ_TOO_MANY_ARGS, | |
| 153 E_TOKZ_MAX_NEST, | |
| 154 E_TOKZ_IDENTIFIER_EXPECTED, | |
| 155 | |
| 156 E_TOKZ_LBRACE_EXPECTED | |
| 157 }; | |
| 158 | |
| 159 | |
| 160 struct _ConfOpt; | |
| 161 | |
| 162 typedef struct _Tokenizer_FInfo{ | |
| 163 FILE *file; | |
| 164 char *name; | |
| 165 int line; | |
| 166 int ungetc; | |
| 167 Token ungettok; | |
| 168 } Tokenizer_FInfo; | |
| 169 | |
| 170 typedef struct _Tokenizer_Buffer{ | |
| 171 char *data; | |
| 172 int len; | |
| 173 int pos; | |
| 174 } Tokenizer_Buffer; | |
| 175 | |
| 176 typedef struct _Tokenizer{ | |
| 177 FILE *file; | |
| 178 char *name; | |
| 179 int line; | |
| 180 int ungetc; | |
| 181 Token ungettok; | |
| 182 | |
| 183 Tokenizer_Buffer buffer; | |
| 184 | |
| 185 int flags; | |
| 186 const struct _ConfOpt **optstack; | |
| 187 int nest_lvl; | |
| 188 void *user_data; | |
| 189 | |
| 190 int filestack_n; | |
| 191 Tokenizer_FInfo *filestack; | |
| 192 | |
| 193 char **includepaths; | |
| 194 } Tokenizer; | |
| 195 | |
| 196 | |
| 197 extern Tokenizer *tokz_open(const char *fname); | |
| 198 extern Tokenizer *tokz_open_file(FILE *file, const char *fname); | |
| 199 extern Tokenizer *tokz_prepare_buffer(char *buffer, int len); | |
| 200 extern void tokz_close(Tokenizer *tokz); | |
| 201 extern bool tokz_get_token(Tokenizer *tokz, Token *tok); | |
| 202 extern void tokz_unget_token(Tokenizer *tokz, Token *tok); | |
| 203 extern void tokz_warn_error(const Tokenizer *tokz, int line, int e); | |
| 204 extern void tokz_warn(const Tokenizer *tokz, int line, const char *fmt, ...); | |
| 205 | |
| 206 extern bool tokz_pushf(Tokenizer *tokz, const char *fname); | |
| 207 extern bool tokz_pushf_file(Tokenizer *tokz, FILE *file, const char *fname); | |
| 208 extern bool tokz_popf(Tokenizer *tokz); | |
| 209 | |
| 210 extern void tokz_set_includepaths(Tokenizer *tokz, char **paths); | |
| 211 | |
| 212 #endif /* LIBTU_TOKENIZER_H */ |
