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/*
* libtu/tokenizer.h
*
* Copyright (c) Tuomo Valkonen 1999-2002.
*
* You may distribute and modify this library under the terms of either
* the Clarified Artistic License or the GNU LGPL, version 2.1 or later.
*/
#ifndef LIBTU_TOKENIZER_H
#define LIBTU_TOKENIZER_H
#include <stdio.h>
#include "types.h"
#define TOK_SET_BOOL(TOK, VAL) {(TOK)->type=TOK_BOOL; (TOK)->u.bval=VAL;} ((void)0)
#define TOK_SET_LONG(TOK, VAL) {(TOK)->type=TOK_LONG; (TOK)->u.lval=VAL;} ((void)0)
#define TOK_SET_DOUBLE(TOK, VAL) {(TOK)->type=TOK_DOUBLE; (TOK)->u.dval=VAL;} ((void)0)
#define TOK_SET_CHAR(TOK, VAL) {(TOK)->type=TOK_CHAR; (TOK)->u.cval=VAL;} ((void)0)
#define TOK_SET_STRING(TOK, VAL) {(TOK)->type=TOK_STRING; (TOK)->u.sval=VAL;} ((void)0)
#define TOK_SET_IDENT(TOK, VAL) {(TOK)->type=TOK_IDENT; (TOK)->u.sval=VAL;} ((void)0)
#define TOK_SET_COMMENT(TOK, VAL) {(TOK)->type=TOK_COMMENT; (TOK)->u.sval=VAL;} ((void)0)
#define TOK_SET_OP(TOK, VAL) {(TOK)->type=TOK_OP; (TOK)->u.opval=VAL;} ((void)0)
#define TOK_TYPE(TOK) ((TOK)->type)
#define TOK_BOOL_VAL(TOK) ((TOK)->u.bval)
#define TOK_LONG_VAL(TOK) ((TOK)->u.lval)
#define TOK_DOUBLE_VAL(TOK) ((TOK)->u.dval)
#define TOK_CHAR_VAL(TOK) ((TOK)->u.cval)
#define TOK_STRING_VAL(TOK) ((TOK)->u.sval)
#define TOK_IDENT_VAL(TOK) ((TOK)->u.sval)
#define TOK_COMMENT_VAL(TOK) ((TOK)->u.sval)
#define TOK_OP_VAL(TOK) ((TOK)->u.opval)
#define TOK_IS_INVALID(TOK) ((TOK)->type==TOK_INVALID)
#define TOK_IS_BOOL(TOK) ((TOK)->type==TOK_BOOL)
#define TOK_IS_LONG(TOK) ((TOK)->type==TOK_LONG)
#define TOK_IS_DOUBLE(TOK) ((TOK)->type==TOK_DOUBLE)
#define TOK_IS_CHAR(TOK) ((TOK)->type==TOK_CHAR)
#define TOK_IS_STRING(TOK) ((TOK)->type==TOK_STRING)
#define TOK_IS_IDENT(TOK) ((TOK)->type==TOK_IDENT)
#define TOK_IS_COMMENT(TOK) ((TOK)->type==TOK_COMMENT)
#define TOK_IS_OP(TOK) ((TOK)->type==TOK_OP)
#define TOK_OP_IS(TOK, OP) ((TOK)->type==TOK_OP && (TOK)->u.opval==(OP))
#define TOK_TAKE_STRING_VAL(TOK) ((TOK)->type=TOK_INVALID, (TOK)->u.sval)
#define TOK_TAKE_IDENT_VAL(TOK) ((TOK)->type=TOK_INVALID, (TOK)->u.sval)
#define TOK_TAKE_COMMENT_VAL(TOK) ((TOK)->type=TOK_INVALID, (TOK)->u.sval)
enum{
TOK_INVALID=0,
TOK_LONG='l',
TOK_DOUBLE='d',
TOK_CHAR='c',
TOK_STRING='s',
TOK_IDENT='i',
TOK_BOOL='b',
TOK_COMMENT='#',
TOK_OP='+'
};
enum{
#define OP2(X,Y) ((X)|((Y)<<8))
#define OP3(X,Y,Z) ((X)|((Y)<<8)|((Z)<<16))
OP_L_PAR= '(', OP_R_PAR= ')', OP_L_BRK= '[', OP_R_BRK= ']',
OP_L_BRC= '{', OP_R_BRC= '}', OP_COMMA= ',', OP_SCOLON= ';',
OP_PLUS= '+', OP_MINUS= '-', OP_MUL= '*', OP_DIV= '/',
OP_MOD= '%', OP_POW= '^', OP_OR= '|', OP_AND= '&',
/*OP_NOT= '~',*/ OP_NOT= '!', OP_ASGN= '=', OP_LT= '<',
OP_GT= '>', OP_DOT= '.', OP_COLON= ':', OP_QMARK= '?',
OP_AT= '@',
OP_NEXTLINE='\n',OP_EOF= -1,
OP_INC= OP2('+','+'), OP_DEC= OP2('-','-'),
OP_LSHIFT= OP2('<','<'), OP_RSHIFT= OP2('>','>'),
OP_AS_INC= OP2('+','='), OP_AS_DEC= OP2('-','='),
OP_AS_MUL= OP2('*','='), OP_AS_DIV= OP2('/','='),
OP_AS_MOD= OP2('%','='), OP_AS_POW= OP2('^','='),
/* AS_OR= OP2('|','='), AS_AND= OP2('&','='), */
OP_EQ= OP2('=','='), OP_NE= OP2('!','='),
OP_LE= OP2('<','='), OP_GE= OP2('>','=')
/* L_AND= OP2('&','&'), L_OR= OP2('|','|'),
L_XOR= OP2('^','^'), */
/* AsLShift= OP3('<','<','='),
AsRShift= OP3('>','>','='), */
#undef OP2
#undef OP3
};
typedef struct{
int type;
int line;
union{
bool bval;
long lval;
double dval;
char cval;
char *sval;
int opval;
} u;
} Token;
#define TOK_INIT {0, 0, {0}}
extern void tok_free(Token*tok);
extern void tok_init(Token*tok);
/* */
enum{
TOKZ_IGNORE_NEXTLINE=0x1,
TOKZ_READ_COMMENTS=0x2,
TOKZ_PARSER_INDENT_MODE=0x04,
TOKZ_ERROR_TOLERANT=0x8,
TOKZ_READ_FROM_BUFFER=0x10,
TOKZ_DEFAULT_OPTION=0x20
};
enum{
E_TOKZ_UNEXPECTED_EOF=1,
E_TOKZ_UNEXPECTED_EOL,
E_TOKZ_EOL_EXPECTED,
E_TOKZ_INVALID_CHAR,
E_TOKZ_TOOBIG,
E_TOKZ_NUMFMT,
E_TOKZ_NUM_JUNK,
E_TOKZ_NOTINT,
E_TOKZ_RANGE,
E_TOKZ_MULTICHAR,
E_TOKZ_TOKEN_LIMIT,
E_TOKZ_UNKNOWN_OPTION,
E_TOKZ_SYNTAX,
E_TOKZ_INVALID_ARGUMENT,
E_TOKZ_EOS_EXPECTED,
E_TOKZ_TOO_FEW_ARGS,
E_TOKZ_TOO_MANY_ARGS,
E_TOKZ_MAX_NEST,
E_TOKZ_IDENTIFIER_EXPECTED,
E_TOKZ_LBRACE_EXPECTED
};
struct _ConfOpt;
typedef struct _Tokenizer_FInfo{
FILE *file;
char *name;
int line;
int ungetc;
Token ungettok;
} Tokenizer_FInfo;
typedef struct _Tokenizer_Buffer{
char *data;
int len;
int pos;
} Tokenizer_Buffer;
typedef struct _Tokenizer{
FILE *file;
char *name;
int line;
int ungetc;
Token ungettok;
Tokenizer_Buffer buffer;
int flags;
const struct _ConfOpt **optstack;
int nest_lvl;
void *user_data;
int filestack_n;
Tokenizer_FInfo *filestack;
char **includepaths;
} Tokenizer;
extern Tokenizer *tokz_open(const char *fname);
extern Tokenizer *tokz_open_file(FILE *file, const char *fname);
extern Tokenizer *tokz_prepare_buffer(char *buffer, int len);
extern void tokz_close(Tokenizer *tokz);
extern bool tokz_get_token(Tokenizer *tokz, Token *tok);
extern void tokz_unget_token(Tokenizer *tokz, Token *tok);
extern void tokz_warn_error(const Tokenizer *tokz, int line, int e);
extern void tokz_warn(const Tokenizer *tokz, int line, const char *fmt, ...);
extern bool tokz_pushf(Tokenizer *tokz, const char *fname);
extern bool tokz_pushf_file(Tokenizer *tokz, FILE *file, const char *fname);
extern bool tokz_popf(Tokenizer *tokz);
extern void tokz_set_includepaths(Tokenizer *tokz, char **paths);
#endif /* LIBTU_TOKENIZER_H */
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