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Edit File : encoding.h \| Size : 13.79 KB
/******************************************************************** encoding.h - $Author: matz $ created at: Thu May 24 11:49:41 JST 2007 Copyright (C) 2007 Yukihiro Matsumoto *******************************************************************/ #ifndef RUBY_ENCODING_H #define RUBY_ENCODING_H 1 #if defined(__cplusplus) extern "C" { #if 0 } / satisfy cc-mode / #endif #endif #include <stdarg.h> #include "ruby/oniguruma.h" #if defined __GNUC__ && __GNUC__ >= 4 #pragma GCC visibility push(default) #endif #define ENCODING_INLINE_MAX 1023 #define ENCODING_SHIFT (FL_USHIFT+10) #define ENCODING_MASK (((VALUE)ENCODING_INLINE_MAX)<<ENCODING_SHIFT) #define ENCODING_SET_INLINED(obj,i) do {\ RBASIC(obj)->flags &= ~ENCODING_MASK;\ RBASIC(obj)->flags \|= (VALUE)(i) << ENCODING_SHIFT;\ } while (0) #define ENCODING_SET(obj,i) do {\ VALUE rb_encoding_set_obj = (obj); \ int encoding_set_enc_index = (i); \ if (encoding_set_enc_index < ENCODING_INLINE_MAX) \ ENCODING_SET_INLINED(rb_encoding_set_obj, encoding_set_enc_index); \ else \ rb_enc_set_index(rb_encoding_set_obj, encoding_set_enc_index); \ } while (0) #define ENCODING_GET_INLINED(obj) (int)((RBASIC(obj)->flags & ENCODING_MASK)>>ENCODING_SHIFT) #define ENCODING_GET(obj) \ (ENCODING_GET_INLINED(obj) != ENCODING_INLINE_MAX ? \ ENCODING_GET_INLINED(obj) : \ rb_enc_get_index(obj)) #define ENCODING_IS_ASCII8BIT(obj) (ENCODING_GET_INLINED(obj) == 0) #define ENCODING_MAXNAMELEN 42 #define ENC_CODERANGE_MASK ((int)(FL_USER8\|FL_USER9)) #define ENC_CODERANGE_UNKNOWN 0 #define ENC_CODERANGE_7BIT ((int)FL_USER8) #define ENC_CODERANGE_VALID ((int)FL_USER9) #define ENC_CODERANGE_BROKEN ((int)(FL_USER8\|FL_USER9)) #define ENC_CODERANGE(obj) ((int)RBASIC(obj)->flags & ENC_CODERANGE_MASK) #define ENC_CODERANGE_ASCIIONLY(obj) (ENC_CODERANGE(obj) == ENC_CODERANGE_7BIT) #define ENC_CODERANGE_SET(obj,cr) (RBASIC(obj)->flags = \ (RBASIC(obj)->flags & ~ENC_CODERANGE_MASK) \| (cr)) #define ENC_CODERANGE_CLEAR(obj) ENC_CODERANGE_SET((obj),0) / assumed ASCII compatibility / #define ENC_CODERANGE_AND(a, b) \ ((a) == ENC_CODERANGE_7BIT ? (b) : \ (a) == ENC_CODERANGE_VALID ? ((b) == ENC_CODERANGE_7BIT ? ENC_CODERANGE_VALID : (b)) : \ ENC_CODERANGE_UNKNOWN) #define ENCODING_CODERANGE_SET(obj, encindex, cr) \ do { \ VALUE rb_encoding_coderange_obj = (obj); \ ENCODING_SET(rb_encoding_coderange_obj, (encindex)); \ ENC_CODERANGE_SET(rb_encoding_coderange_obj, (cr)); \ } while (0) typedef OnigEncodingType rb_encoding; int rb_char_to_option_kcode(int c, int option, int kcode); int rb_enc_replicate(const char , rb_encoding ); int rb_define_dummy_encoding(const char ); #define rb_enc_to_index(enc) ((enc) ? ENC_TO_ENCINDEX(enc) : 0) int rb_enc_get_index(VALUE obj); void rb_enc_set_index(VALUE obj, int encindex); int rb_enc_find_index(const char name); int rb_to_encoding_index(VALUE); rb_encoding rb_to_encoding(VALUE); rb_encoding* rb_find_encoding(VALUE); rb_encoding* rb_enc_get(VALUE); rb_encoding* rb_enc_compatible(VALUE,VALUE); rb_encoding* rb_enc_check(VALUE,VALUE); VALUE rb_enc_associate_index(VALUE, int); VALUE rb_enc_associate(VALUE, rb_encoding); void rb_enc_copy(VALUE dst, VALUE src); VALUE rb_enc_str_new(const char, long, rb_encoding); VALUE rb_enc_reg_new(const char, long, rb_encoding, int); PRINTF_ARGS(VALUE rb_enc_sprintf(rb_encoding , const char, ...), 2, 3); VALUE rb_enc_vsprintf(rb_encoding , const char, va_list); long rb_enc_strlen(const char, const char, rb_encoding); char* rb_enc_nth(const char, const char, long, rb_encoding); VALUE rb_obj_encoding(VALUE); VALUE rb_enc_str_buf_cat(VALUE str, const char ptr, long len, rb_encoding enc); VALUE rb_enc_uint_chr(unsigned int code, rb_encoding enc); VALUE rb_external_str_new_with_enc(const char ptr, long len, rb_encoding ); VALUE rb_str_export_to_enc(VALUE, rb_encoding ); VALUE rb_str_conv_enc(VALUE str, rb_encoding from, rb_encoding to); VALUE rb_str_conv_enc_opts(VALUE str, rb_encoding from, rb_encoding to, int ecflags, VALUE ecopts); PRINTF_ARGS(NORETURN(void rb_enc_raise(rb_encoding , VALUE, const char, ...)), 3, 4); / index -> rb_encoding / rb_encoding rb_enc_from_index(int idx); /* name -> rb_encoding / rb_encoding rb_enc_find(const char name); / rb_encoding * -> name / #define rb_enc_name(enc) (enc)->name / rb_encoding * -> minlen/maxlen / #define rb_enc_mbminlen(enc) (enc)->min_enc_len #define rb_enc_mbmaxlen(enc) (enc)->max_enc_len / -> mbclen (no error notification: 0 < ret <= e-p, no exception) / int rb_enc_mbclen(const char p, const char e, rb_encoding enc); /* -> mbclen (only for valid encoding) / int rb_enc_fast_mbclen(const char p, const char e, rb_encoding enc); /* -> chlen, invalid or needmore / int rb_enc_precise_mbclen(const char p, const char e, rb_encoding enc); #define MBCLEN_CHARFOUND_P(ret) ONIGENC_MBCLEN_CHARFOUND_P(ret) #define MBCLEN_CHARFOUND_LEN(ret) ONIGENC_MBCLEN_CHARFOUND_LEN(ret) #define MBCLEN_INVALID_P(ret) ONIGENC_MBCLEN_INVALID_P(ret) #define MBCLEN_NEEDMORE_P(ret) ONIGENC_MBCLEN_NEEDMORE_P(ret) #define MBCLEN_NEEDMORE_LEN(ret) ONIGENC_MBCLEN_NEEDMORE_LEN(ret) /* -> 0x00..0x7f, -1 / int rb_enc_ascget(const char p, const char e, int len, rb_encoding enc); / -> code (and len) or raise exception / unsigned int rb_enc_codepoint_len(const char p, const char e, int len, rb_encoding enc); / prototype for obsolete function / unsigned int rb_enc_codepoint(const char p, const char e, rb_encoding enc); /* overriding macro / #define rb_enc_codepoint(p,e,enc) rb_enc_codepoint_len((p),(e),0,(enc)) #define rb_enc_mbc_to_codepoint(p, e, enc) ONIGENC_MBC_TO_CODE((enc),(UChar)(p),(UChar)(e)) / -> codelen>0 or raise exception / int rb_enc_codelen(int code, rb_encoding enc); /* code,ptr,encoding -> write buf / #define rb_enc_mbcput(c,buf,enc) ONIGENC_CODE_TO_MBC((enc),(c),(UChar)(buf)) /* start, ptr, end, encoding -> prev_char / #define rb_enc_prev_char(s,p,e,enc) ((char )onigenc_get_prev_char_head((enc),(UChar)(s),(UChar)(p),(UChar)(e))) / start, ptr, end, encoding -> next_char / #define rb_enc_left_char_head(s,p,e,enc) ((char )onigenc_get_left_adjust_char_head((enc),(UChar)(s),(UChar)(p),(UChar)(e))) #define rb_enc_right_char_head(s,p,e,enc) ((char )onigenc_get_right_adjust_char_head((enc),(UChar)(s),(UChar)(p),(UChar)(e))) #define rb_enc_step_back(s,p,e,n,enc) ((char )onigenc_step_back((enc),(UChar)(s),(UChar)(p),(UChar)(e),(int)(n))) / ptr, ptr, encoding -> newline_or_not / #define rb_enc_is_newline(p,end,enc) ONIGENC_IS_MBC_NEWLINE((enc),(UChar)(p),(UChar)(end)) #define rb_enc_isctype(c,t,enc) ONIGENC_IS_CODE_CTYPE((enc),(c),(t)) #define rb_enc_isascii(c,enc) ONIGENC_IS_CODE_ASCII(c) #define rb_enc_isalpha(c,enc) ONIGENC_IS_CODE_ALPHA((enc),(c)) #define rb_enc_islower(c,enc) ONIGENC_IS_CODE_LOWER((enc),(c)) #define rb_enc_isupper(c,enc) ONIGENC_IS_CODE_UPPER((enc),(c)) #define rb_enc_ispunct(c,enc) ONIGENC_IS_CODE_PUNCT((enc),(c)) #define rb_enc_isalnum(c,enc) ONIGENC_IS_CODE_ALNUM((enc),(c)) #define rb_enc_isprint(c,enc) ONIGENC_IS_CODE_PRINT((enc),(c)) #define rb_enc_isspace(c,enc) ONIGENC_IS_CODE_SPACE((enc),(c)) #define rb_enc_isdigit(c,enc) ONIGENC_IS_CODE_DIGIT((enc),(c)) #define rb_enc_asciicompat(enc) (rb_enc_mbminlen(enc)==1 && !rb_enc_dummy_p(enc)) int rb_enc_casefold(char to, const char p, const char e, rb_encoding enc); int rb_enc_toupper(int c, rb_encoding enc); int rb_enc_tolower(int c, rb_encoding enc); ID rb_intern3(const char, long, rb_encoding); ID rb_interned_id_p(const char , long, rb_encoding ); int rb_enc_symname_p(const char, rb_encoding); int rb_enc_symname2_p(const char, long, rb_encoding); int rb_enc_str_coderange(VALUE); long rb_str_coderange_scan_restartable(const char, const char, rb_encoding, int); int rb_enc_str_asciionly_p(VALUE); #define rb_enc_str_asciicompat_p(str) rb_enc_asciicompat(rb_enc_get(str)) VALUE rb_enc_from_encoding(rb_encoding enc); int rb_enc_unicode_p(rb_encoding enc); rb_encoding rb_ascii8bit_encoding(void); rb_encoding rb_utf8_encoding(void); rb_encoding rb_usascii_encoding(void); rb_encoding rb_locale_encoding(void); rb_encoding rb_filesystem_encoding(void); rb_encoding rb_default_external_encoding(void); rb_encoding rb_default_internal_encoding(void); int rb_ascii8bit_encindex(void); int rb_utf8_encindex(void); int rb_usascii_encindex(void); int rb_locale_encindex(void); int rb_filesystem_encindex(void); VALUE rb_enc_default_external(void); VALUE rb_enc_default_internal(void); void rb_enc_set_default_external(VALUE encoding); void rb_enc_set_default_internal(VALUE encoding); VALUE rb_locale_charmap(VALUE klass); long rb_memsearch(const void,long,const void,long,rb_encoding); char rb_enc_path_next(const char ,const char ,rb_encoding); char rb_enc_path_skip_prefix(const char ,const char ,rb_encoding); char rb_enc_path_last_separator(const char ,const char ,rb_encoding); char rb_enc_path_end(const char ,const char ,rb_encoding); const char ruby_enc_find_basename(const char name, long baselen, long alllen, rb_encoding enc); const char ruby_enc_find_extname(const char name, long len, rb_encoding enc); ID rb_check_id_cstr(const char ptr, long len, rb_encoding enc); RUBY_EXTERN VALUE rb_cEncoding; #define ENC_DUMMY_FLAG (1<<24) #define ENC_INDEX_MASK (~(~0U<<24)) #define ENC_TO_ENCINDEX(enc) (int)((enc)->ruby_encoding_index & ENC_INDEX_MASK) #define ENC_DUMMY_P(enc) ((enc)->ruby_encoding_index & ENC_DUMMY_FLAG) #define ENC_SET_DUMMY(enc) ((enc)->ruby_encoding_index \|= ENC_DUMMY_FLAG) static inline int rb_enc_dummy_p(rb_encoding enc) { return ENC_DUMMY_P(enc) != 0; } / econv stuff / typedef enum { econv_invalid_byte_sequence, econv_undefined_conversion, econv_destination_buffer_full, econv_source_buffer_empty, econv_finished, econv_after_output, econv_incomplete_input } rb_econv_result_t; typedef struct rb_econv_t rb_econv_t; VALUE rb_str_encode(VALUE str, VALUE to, int ecflags, VALUE ecopts); int rb_econv_has_convpath_p(const char from_encoding, const char* to_encoding); int rb_econv_prepare_options(VALUE opthash, VALUE ecopts, int ecflags); int rb_econv_prepare_opts(VALUE opthash, VALUE ecopts); rb_econv_t rb_econv_open(const char source_encoding, const char destination_encoding, int ecflags); rb_econv_t rb_econv_open_opts(const char source_encoding, const char destination_encoding, int ecflags, VALUE ecopts); rb_econv_result_t rb_econv_convert(rb_econv_t ec, const unsigned char source_buffer_ptr, const unsigned char source_buffer_end, unsigned char *destination_buffer_ptr, unsigned char destination_buffer_end, int flags); void rb_econv_close(rb_econv_t ec); / result: 0:success -1:failure / int rb_econv_set_replacement(rb_econv_t ec, const unsigned char str, size_t len, const char encname); /* result: 0:success -1:failure / int rb_econv_decorate_at_first(rb_econv_t ec, const char decorator_name); int rb_econv_decorate_at_last(rb_econv_t ec, const char decorator_name); VALUE rb_econv_open_exc(const char senc, const char denc, int ecflags); / result: 0:success -1:failure / int rb_econv_insert_output(rb_econv_t ec, const unsigned char str, size_t len, const char str_encoding); /* encoding that rb_econv_insert_output doesn't need conversion / const char rb_econv_encoding_to_insert_output(rb_econv_t ec); / raise an error if the last rb_econv_convert is error / void rb_econv_check_error(rb_econv_t ec); /* returns an exception object or nil / VALUE rb_econv_make_exception(rb_econv_t ec); int rb_econv_putbackable(rb_econv_t ec); void rb_econv_putback(rb_econv_t ec, unsigned char p, int n); / returns the corresponding ASCII compatible encoding for encname, * or NULL if encname is not ASCII incompatible encoding. / const char rb_econv_asciicompat_encoding(const char encname); VALUE rb_econv_str_convert(rb_econv_t ec, VALUE src, int flags); VALUE rb_econv_substr_convert(rb_econv_t ec, VALUE src, long byteoff, long bytesize, int flags); VALUE rb_econv_str_append(rb_econv_t ec, VALUE src, VALUE dst, int flags); VALUE rb_econv_substr_append(rb_econv_t ec, VALUE src, long byteoff, long bytesize, VALUE dst, int flags); void rb_econv_binmode(rb_econv_t ec); /* flags for rb_econv_open / #define ECONV_ERROR_HANDLER_MASK 0x000000ff #define ECONV_INVALID_MASK 0x0000000f #define ECONV_INVALID_REPLACE 0x00000002 #define ECONV_UNDEF_MASK 0x000000f0 #define ECONV_UNDEF_REPLACE 0x00000020 #define ECONV_UNDEF_HEX_CHARREF 0x00000030 #define ECONV_DECORATOR_MASK 0x0000ff00 #define ECONV_NEWLINE_DECORATOR_MASK 0x00003f00 #define ECONV_NEWLINE_DECORATOR_READ_MASK 0x00000f00 #define ECONV_NEWLINE_DECORATOR_WRITE_MASK 0x00003000 #define ECONV_UNIVERSAL_NEWLINE_DECORATOR 0x00000100 #define ECONV_CRLF_NEWLINE_DECORATOR 0x00001000 #define ECONV_CR_NEWLINE_DECORATOR 0x00002000 #define ECONV_XML_TEXT_DECORATOR 0x00004000 #define ECONV_XML_ATTR_CONTENT_DECORATOR 0x00008000 #define ECONV_STATEFUL_DECORATOR_MASK 0x00f00000 #define ECONV_XML_ATTR_QUOTE_DECORATOR 0x00100000 #if defined(RUBY_TEST_CRLF_ENVIRONMENT) \|\| defined(_WIN32) #define ECONV_DEFAULT_NEWLINE_DECORATOR ECONV_CRLF_NEWLINE_DECORATOR #else #define ECONV_DEFAULT_NEWLINE_DECORATOR 0 #endif / end of flags for rb_econv_open / / flags for rb_econv_convert / #define ECONV_PARTIAL_INPUT 0x00010000 #define ECONV_AFTER_OUTPUT 0x00020000 / end of flags for rb_econv_convert / #if defined __GNUC__ && __GNUC__ >= 4 #pragma GCC visibility pop #endif #if defined(__cplusplus) #if 0 { / satisfy cc-mode / #endif } / extern "C" { / #endif #endif / RUBY_ENCODING_H */ Back

Edit File : encoding.h | Size : 13.79 KB

/**********************************************************************

encoding.h -

$Author: matz $
  created at: Thu May 24 11:49:41 JST 2007

**********************************************************************/

#ifndef RUBY_ENCODING_H
#define RUBY_ENCODING_H 1

#if defined(__cplusplus)
extern "C" {
#if 0
} /* satisfy cc-mode */
#endif
#endif

#include <stdarg.h>
#include "ruby/oniguruma.h"

#if defined __GNUC__ && __GNUC__ >= 4
#pragma GCC visibility push(default)
#endif

#define ENCODING_INLINE_MAX 1023
#define ENCODING_SHIFT (FL_USHIFT+10)
#define ENCODING_MASK (((VALUE)ENCODING_INLINE_MAX)<<ENCODING_SHIFT)

#define ENCODING_SET_INLINED(obj,i) do {\
    RBASIC(obj)->flags &= ~ENCODING_MASK;\
    RBASIC(obj)->flags |= (VALUE)(i) << ENCODING_SHIFT;\
} while (0)
#define ENCODING_SET(obj,i) do {\
    VALUE rb_encoding_set_obj = (obj); \
    int encoding_set_enc_index = (i); \
    if (encoding_set_enc_index < ENCODING_INLINE_MAX) \
        ENCODING_SET_INLINED(rb_encoding_set_obj, encoding_set_enc_index); \
    else \
        rb_enc_set_index(rb_encoding_set_obj, encoding_set_enc_index); \
} while (0)

#define ENCODING_GET_INLINED(obj) (int)((RBASIC(obj)->flags & ENCODING_MASK)>>ENCODING_SHIFT)
#define ENCODING_GET(obj) \
    (ENCODING_GET_INLINED(obj) != ENCODING_INLINE_MAX ? \
     ENCODING_GET_INLINED(obj) : \
     rb_enc_get_index(obj))

#define ENCODING_IS_ASCII8BIT(obj) (ENCODING_GET_INLINED(obj) == 0)

#define ENCODING_MAXNAMELEN 42

#define ENC_CODERANGE_MASK	((int)(FL_USER8|FL_USER9))
#define ENC_CODERANGE_UNKNOWN	0
#define ENC_CODERANGE_7BIT	((int)FL_USER8)
#define ENC_CODERANGE_VALID	((int)FL_USER9)
#define ENC_CODERANGE_BROKEN	((int)(FL_USER8|FL_USER9))
#define ENC_CODERANGE(obj) ((int)RBASIC(obj)->flags & ENC_CODERANGE_MASK)
#define ENC_CODERANGE_ASCIIONLY(obj) (ENC_CODERANGE(obj) == ENC_CODERANGE_7BIT)
#define ENC_CODERANGE_SET(obj,cr) (RBASIC(obj)->flags = \
				   (RBASIC(obj)->flags & ~ENC_CODERANGE_MASK) | (cr))
#define ENC_CODERANGE_CLEAR(obj) ENC_CODERANGE_SET((obj),0)

/* assumed ASCII compatibility */
#define ENC_CODERANGE_AND(a, b) \
    ((a) == ENC_CODERANGE_7BIT ? (b) : \
     (a) == ENC_CODERANGE_VALID ? ((b) == ENC_CODERANGE_7BIT ? ENC_CODERANGE_VALID : (b)) : \
     ENC_CODERANGE_UNKNOWN)

#define ENCODING_CODERANGE_SET(obj, encindex, cr) \
    do { \
        VALUE rb_encoding_coderange_obj = (obj); \
        ENCODING_SET(rb_encoding_coderange_obj, (encindex)); \
        ENC_CODERANGE_SET(rb_encoding_coderange_obj, (cr)); \
    } while (0)

typedef OnigEncodingType rb_encoding;

int rb_char_to_option_kcode(int c, int *option, int *kcode);

int rb_enc_replicate(const char *, rb_encoding *);
int rb_define_dummy_encoding(const char *);
#define rb_enc_to_index(enc) ((enc) ? ENC_TO_ENCINDEX(enc) : 0)
int rb_enc_get_index(VALUE obj);
void rb_enc_set_index(VALUE obj, int encindex);
int rb_enc_find_index(const char *name);
int rb_to_encoding_index(VALUE);
rb_encoding* rb_to_encoding(VALUE);
rb_encoding* rb_find_encoding(VALUE);
rb_encoding* rb_enc_get(VALUE);
rb_encoding* rb_enc_compatible(VALUE,VALUE);
rb_encoding* rb_enc_check(VALUE,VALUE);
VALUE rb_enc_associate_index(VALUE, int);
VALUE rb_enc_associate(VALUE, rb_encoding*);
void rb_enc_copy(VALUE dst, VALUE src);

VALUE rb_enc_str_new(const char*, long, rb_encoding*);
VALUE rb_enc_reg_new(const char*, long, rb_encoding*, int);
PRINTF_ARGS(VALUE rb_enc_sprintf(rb_encoding *, const char*, ...), 2, 3);
VALUE rb_enc_vsprintf(rb_encoding *, const char*, va_list);
long rb_enc_strlen(const char*, const char*, rb_encoding*);
char* rb_enc_nth(const char*, const char*, long, rb_encoding*);
VALUE rb_obj_encoding(VALUE);
VALUE rb_enc_str_buf_cat(VALUE str, const char *ptr, long len, rb_encoding *enc);
VALUE rb_enc_uint_chr(unsigned int code, rb_encoding *enc);

VALUE rb_external_str_new_with_enc(const char *ptr, long len, rb_encoding *);
VALUE rb_str_export_to_enc(VALUE, rb_encoding *);
VALUE rb_str_conv_enc(VALUE str, rb_encoding *from, rb_encoding *to);
VALUE rb_str_conv_enc_opts(VALUE str, rb_encoding *from, rb_encoding *to, int ecflags, VALUE ecopts);

PRINTF_ARGS(NORETURN(void rb_enc_raise(rb_encoding *, VALUE, const char*, ...)), 3, 4);

/* index -> rb_encoding */
rb_encoding* rb_enc_from_index(int idx);

/* name -> rb_encoding */
rb_encoding * rb_enc_find(const char *name);

/* rb_encoding * -> name */
#define rb_enc_name(enc) (enc)->name

/* rb_encoding * -> minlen/maxlen */
#define rb_enc_mbminlen(enc) (enc)->min_enc_len
#define rb_enc_mbmaxlen(enc) (enc)->max_enc_len

/* -> mbclen (no error notification: 0 < ret <= e-p, no exception) */
int rb_enc_mbclen(const char *p, const char *e, rb_encoding *enc);

/* -> mbclen (only for valid encoding) */
int rb_enc_fast_mbclen(const char *p, const char *e, rb_encoding *enc);

/* -> chlen, invalid or needmore */
int rb_enc_precise_mbclen(const char *p, const char *e, rb_encoding *enc);
#define MBCLEN_CHARFOUND_P(ret)     ONIGENC_MBCLEN_CHARFOUND_P(ret)
#define MBCLEN_CHARFOUND_LEN(ret)     ONIGENC_MBCLEN_CHARFOUND_LEN(ret)
#define MBCLEN_INVALID_P(ret)       ONIGENC_MBCLEN_INVALID_P(ret)
#define MBCLEN_NEEDMORE_P(ret)      ONIGENC_MBCLEN_NEEDMORE_P(ret)
#define MBCLEN_NEEDMORE_LEN(ret)      ONIGENC_MBCLEN_NEEDMORE_LEN(ret)

/* -> 0x00..0x7f, -1 */
int rb_enc_ascget(const char *p, const char *e, int *len, rb_encoding *enc);

/* -> code (and len) or raise exception */
unsigned int rb_enc_codepoint_len(const char *p, const char *e, int *len, rb_encoding *enc);

/* prototype for obsolete function */
unsigned int rb_enc_codepoint(const char *p, const char *e, rb_encoding *enc);
/* overriding macro */
#define rb_enc_codepoint(p,e,enc) rb_enc_codepoint_len((p),(e),0,(enc))
#define rb_enc_mbc_to_codepoint(p, e, enc) ONIGENC_MBC_TO_CODE((enc),(UChar*)(p),(UChar*)(e))

/* -> codelen>0 or raise exception */
int rb_enc_codelen(int code, rb_encoding *enc);

/* code,ptr,encoding -> write buf */
#define rb_enc_mbcput(c,buf,enc) ONIGENC_CODE_TO_MBC((enc),(c),(UChar*)(buf))

/* start, ptr, end, encoding -> prev_char */
#define rb_enc_prev_char(s,p,e,enc) ((char *)onigenc_get_prev_char_head((enc),(UChar*)(s),(UChar*)(p),(UChar*)(e)))
/* start, ptr, end, encoding -> next_char */
#define rb_enc_left_char_head(s,p,e,enc) ((char *)onigenc_get_left_adjust_char_head((enc),(UChar*)(s),(UChar*)(p),(UChar*)(e)))
#define rb_enc_right_char_head(s,p,e,enc) ((char *)onigenc_get_right_adjust_char_head((enc),(UChar*)(s),(UChar*)(p),(UChar*)(e)))
#define rb_enc_step_back(s,p,e,n,enc) ((char *)onigenc_step_back((enc),(UChar*)(s),(UChar*)(p),(UChar*)(e),(int)(n)))

/* ptr, ptr, encoding -> newline_or_not */
#define rb_enc_is_newline(p,end,enc)  ONIGENC_IS_MBC_NEWLINE((enc),(UChar*)(p),(UChar*)(end))

#define rb_enc_isctype(c,t,enc) ONIGENC_IS_CODE_CTYPE((enc),(c),(t))
#define rb_enc_isascii(c,enc) ONIGENC_IS_CODE_ASCII(c)
#define rb_enc_isalpha(c,enc) ONIGENC_IS_CODE_ALPHA((enc),(c))
#define rb_enc_islower(c,enc) ONIGENC_IS_CODE_LOWER((enc),(c))
#define rb_enc_isupper(c,enc) ONIGENC_IS_CODE_UPPER((enc),(c))
#define rb_enc_ispunct(c,enc) ONIGENC_IS_CODE_PUNCT((enc),(c))
#define rb_enc_isalnum(c,enc) ONIGENC_IS_CODE_ALNUM((enc),(c))
#define rb_enc_isprint(c,enc) ONIGENC_IS_CODE_PRINT((enc),(c))
#define rb_enc_isspace(c,enc) ONIGENC_IS_CODE_SPACE((enc),(c))
#define rb_enc_isdigit(c,enc) ONIGENC_IS_CODE_DIGIT((enc),(c))

#define rb_enc_asciicompat(enc) (rb_enc_mbminlen(enc)==1 && !rb_enc_dummy_p(enc))

int rb_enc_casefold(char *to, const char *p, const char *e, rb_encoding *enc);
int rb_enc_toupper(int c, rb_encoding *enc);
int rb_enc_tolower(int c, rb_encoding *enc);
ID rb_intern3(const char*, long, rb_encoding*);
ID rb_interned_id_p(const char *, long, rb_encoding *);
int rb_enc_symname_p(const char*, rb_encoding*);
int rb_enc_symname2_p(const char*, long, rb_encoding*);
int rb_enc_str_coderange(VALUE);
long rb_str_coderange_scan_restartable(const char*, const char*, rb_encoding*, int*);
int rb_enc_str_asciionly_p(VALUE);
#define rb_enc_str_asciicompat_p(str) rb_enc_asciicompat(rb_enc_get(str))
VALUE rb_enc_from_encoding(rb_encoding *enc);
int rb_enc_unicode_p(rb_encoding *enc);
rb_encoding *rb_ascii8bit_encoding(void);
rb_encoding *rb_utf8_encoding(void);
rb_encoding *rb_usascii_encoding(void);
rb_encoding *rb_locale_encoding(void);
rb_encoding *rb_filesystem_encoding(void);
rb_encoding *rb_default_external_encoding(void);
rb_encoding *rb_default_internal_encoding(void);
int rb_ascii8bit_encindex(void);
int rb_utf8_encindex(void);
int rb_usascii_encindex(void);
int rb_locale_encindex(void);
int rb_filesystem_encindex(void);
VALUE rb_enc_default_external(void);
VALUE rb_enc_default_internal(void);
void rb_enc_set_default_external(VALUE encoding);
void rb_enc_set_default_internal(VALUE encoding);
VALUE rb_locale_charmap(VALUE klass);
long rb_memsearch(const void*,long,const void*,long,rb_encoding*);
char *rb_enc_path_next(const char *,const char *,rb_encoding*);
char *rb_enc_path_skip_prefix(const char *,const char *,rb_encoding*);
char *rb_enc_path_last_separator(const char *,const char *,rb_encoding*);
char *rb_enc_path_end(const char *,const char *,rb_encoding*);
const char *ruby_enc_find_basename(const char *name, long *baselen, long *alllen, rb_encoding *enc);
const char *ruby_enc_find_extname(const char *name, long *len, rb_encoding *enc);
ID rb_check_id_cstr(const char *ptr, long len, rb_encoding *enc);

RUBY_EXTERN VALUE rb_cEncoding;
#define ENC_DUMMY_FLAG (1<<24)
#define ENC_INDEX_MASK (~(~0U<<24))

#define ENC_TO_ENCINDEX(enc) (int)((enc)->ruby_encoding_index & ENC_INDEX_MASK)

#define ENC_DUMMY_P(enc) ((enc)->ruby_encoding_index & ENC_DUMMY_FLAG)
#define ENC_SET_DUMMY(enc) ((enc)->ruby_encoding_index |= ENC_DUMMY_FLAG)

static inline int
rb_enc_dummy_p(rb_encoding *enc)
{
    return ENC_DUMMY_P(enc) != 0;
}

/* econv stuff */

typedef enum {
    econv_invalid_byte_sequence,
    econv_undefined_conversion,
    econv_destination_buffer_full,
    econv_source_buffer_empty,
    econv_finished,
    econv_after_output,
    econv_incomplete_input
} rb_econv_result_t;

typedef struct rb_econv_t rb_econv_t;

VALUE rb_str_encode(VALUE str, VALUE to, int ecflags, VALUE ecopts);
int rb_econv_has_convpath_p(const char* from_encoding, const char* to_encoding);

int rb_econv_prepare_options(VALUE opthash, VALUE *ecopts, int ecflags);
int rb_econv_prepare_opts(VALUE opthash, VALUE *ecopts);

rb_econv_t *rb_econv_open(const char *source_encoding, const char *destination_encoding, int ecflags);
rb_econv_t *rb_econv_open_opts(const char *source_encoding, const char *destination_encoding, int ecflags, VALUE ecopts);

rb_econv_result_t rb_econv_convert(rb_econv_t *ec,
    const unsigned char **source_buffer_ptr, const unsigned char *source_buffer_end,
    unsigned char **destination_buffer_ptr, unsigned char *destination_buffer_end,
    int flags);
void rb_econv_close(rb_econv_t *ec);

/* result: 0:success -1:failure */
int rb_econv_set_replacement(rb_econv_t *ec, const unsigned char *str, size_t len, const char *encname);

/* result: 0:success -1:failure */
int rb_econv_decorate_at_first(rb_econv_t *ec, const char *decorator_name);
int rb_econv_decorate_at_last(rb_econv_t *ec, const char *decorator_name);

VALUE rb_econv_open_exc(const char *senc, const char *denc, int ecflags);

/* result: 0:success -1:failure */
int rb_econv_insert_output(rb_econv_t *ec,
    const unsigned char *str, size_t len, const char *str_encoding);

/* encoding that rb_econv_insert_output doesn't need conversion */
const char *rb_econv_encoding_to_insert_output(rb_econv_t *ec);

/* raise an error if the last rb_econv_convert is error */
void rb_econv_check_error(rb_econv_t *ec);

/* returns an exception object or nil */
VALUE rb_econv_make_exception(rb_econv_t *ec);

int rb_econv_putbackable(rb_econv_t *ec);
void rb_econv_putback(rb_econv_t *ec, unsigned char *p, int n);

/* returns the corresponding ASCII compatible encoding for encname,
 * or NULL if encname is not ASCII incompatible encoding. */
const char *rb_econv_asciicompat_encoding(const char *encname);

VALUE rb_econv_str_convert(rb_econv_t *ec, VALUE src, int flags);
VALUE rb_econv_substr_convert(rb_econv_t *ec, VALUE src, long byteoff, long bytesize, int flags);
VALUE rb_econv_str_append(rb_econv_t *ec, VALUE src, VALUE dst, int flags);
VALUE rb_econv_substr_append(rb_econv_t *ec, VALUE src, long byteoff, long bytesize, VALUE dst, int flags);

void rb_econv_binmode(rb_econv_t *ec);

/* flags for rb_econv_open */

#define ECONV_ERROR_HANDLER_MASK                0x000000ff

#define ECONV_INVALID_MASK                      0x0000000f
#define ECONV_INVALID_REPLACE                   0x00000002

#define ECONV_UNDEF_MASK                        0x000000f0
#define ECONV_UNDEF_REPLACE                     0x00000020
#define ECONV_UNDEF_HEX_CHARREF                 0x00000030

#define ECONV_DECORATOR_MASK                    0x0000ff00
#define ECONV_NEWLINE_DECORATOR_MASK            0x00003f00
#define ECONV_NEWLINE_DECORATOR_READ_MASK       0x00000f00
#define ECONV_NEWLINE_DECORATOR_WRITE_MASK      0x00003000

#define ECONV_UNIVERSAL_NEWLINE_DECORATOR       0x00000100
#define ECONV_CRLF_NEWLINE_DECORATOR            0x00001000
#define ECONV_CR_NEWLINE_DECORATOR              0x00002000
#define ECONV_XML_TEXT_DECORATOR                0x00004000
#define ECONV_XML_ATTR_CONTENT_DECORATOR        0x00008000

#define ECONV_STATEFUL_DECORATOR_MASK           0x00f00000
#define ECONV_XML_ATTR_QUOTE_DECORATOR          0x00100000

#if defined(RUBY_TEST_CRLF_ENVIRONMENT) || defined(_WIN32)
#define ECONV_DEFAULT_NEWLINE_DECORATOR ECONV_CRLF_NEWLINE_DECORATOR
#else
#define ECONV_DEFAULT_NEWLINE_DECORATOR 0
#endif

/* end of flags for rb_econv_open */

/* flags for rb_econv_convert */
#define ECONV_PARTIAL_INPUT                     0x00010000
#define ECONV_AFTER_OUTPUT                      0x00020000
/* end of flags for rb_econv_convert */

#if defined __GNUC__ && __GNUC__ >= 4
#pragma GCC visibility pop
#endif

#if defined(__cplusplus)
#if 0
{ /* satisfy cc-mode */
#endif
}  /* extern "C" { */
#endif

#endif /* RUBY_ENCODING_H */

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