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abac848564
* string.c (rb_str_new_static): create string object with static
buffer. incorporated from mruby.
* string.c (rb_{usascii,utf8,enc}_str_new_static): ditto with
encodings.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47639 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
359 lines
14 KiB
C
359 lines
14 KiB
C
/**********************************************************************
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encoding.h -
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$Author: matz $
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created at: Thu May 24 11:49:41 JST 2007
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Copyright (C) 2007 Yukihiro Matsumoto
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**********************************************************************/
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#ifndef RUBY_ENCODING_H
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#define RUBY_ENCODING_H 1
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#if defined(__cplusplus)
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extern "C" {
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#if 0
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} /* satisfy cc-mode */
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#endif
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#endif
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#include <stdarg.h>
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#include "ruby/oniguruma.h"
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RUBY_SYMBOL_EXPORT_BEGIN
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#define ENCODING_INLINE_MAX 127
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#define ENCODING_SHIFT (FL_USHIFT+10)
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#define ENCODING_MASK (((VALUE)ENCODING_INLINE_MAX)<<ENCODING_SHIFT) /* FL_USER10|FL_USER11|FL_USER12|FL_USER13|FL_USER14|FL_USER15|FL_USER16 */
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#define ENCODING_SET_INLINED(obj,i) do {\
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RBASIC(obj)->flags &= ~ENCODING_MASK;\
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RBASIC(obj)->flags |= (VALUE)(i) << ENCODING_SHIFT;\
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} while (0)
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#define ENCODING_SET(obj,i) rb_enc_set_index((obj), (i))
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#define ENCODING_GET_INLINED(obj) (int)((RBASIC(obj)->flags & ENCODING_MASK)>>ENCODING_SHIFT)
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#define ENCODING_GET(obj) \
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(ENCODING_GET_INLINED(obj) != ENCODING_INLINE_MAX ? \
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ENCODING_GET_INLINED(obj) : \
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rb_enc_get_index(obj))
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#define ENCODING_IS_ASCII8BIT(obj) (ENCODING_GET_INLINED(obj) == 0)
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#define ENCODING_MAXNAMELEN 42
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#define ENC_CODERANGE_MASK ((int)(FL_USER8|FL_USER9))
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#define ENC_CODERANGE_UNKNOWN 0
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#define ENC_CODERANGE_7BIT ((int)FL_USER8)
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#define ENC_CODERANGE_VALID ((int)FL_USER9)
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#define ENC_CODERANGE_BROKEN ((int)(FL_USER8|FL_USER9))
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#define ENC_CODERANGE(obj) ((int)RBASIC(obj)->flags & ENC_CODERANGE_MASK)
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#define ENC_CODERANGE_ASCIIONLY(obj) (ENC_CODERANGE(obj) == ENC_CODERANGE_7BIT)
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#define ENC_CODERANGE_SET(obj,cr) (RBASIC(obj)->flags = \
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(RBASIC(obj)->flags & ~ENC_CODERANGE_MASK) | (cr))
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#define ENC_CODERANGE_CLEAR(obj) ENC_CODERANGE_SET((obj),0)
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/* assumed ASCII compatibility */
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#define ENC_CODERANGE_AND(a, b) \
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((a) == ENC_CODERANGE_7BIT ? (b) : \
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(a) == ENC_CODERANGE_VALID ? ((b) == ENC_CODERANGE_7BIT ? ENC_CODERANGE_VALID : (b)) : \
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ENC_CODERANGE_UNKNOWN)
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#define ENCODING_CODERANGE_SET(obj, encindex, cr) \
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do { \
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VALUE rb_encoding_coderange_obj = (obj); \
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ENCODING_SET(rb_encoding_coderange_obj, (encindex)); \
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ENC_CODERANGE_SET(rb_encoding_coderange_obj, (cr)); \
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} while (0)
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typedef const OnigEncodingType rb_encoding;
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int rb_char_to_option_kcode(int c, int *option, int *kcode);
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int rb_enc_replicate(const char *, rb_encoding *);
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int rb_define_dummy_encoding(const char *);
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int rb_enc_dummy_p(rb_encoding *enc);
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int rb_enc_to_index(rb_encoding *enc);
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int rb_enc_get_index(VALUE obj);
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void rb_enc_set_index(VALUE obj, int encindex);
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int rb_enc_find_index(const char *name);
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int rb_to_encoding_index(VALUE);
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rb_encoding *rb_to_encoding(VALUE);
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rb_encoding *rb_find_encoding(VALUE);
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rb_encoding *rb_enc_get(VALUE);
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rb_encoding *rb_enc_compatible(VALUE,VALUE);
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rb_encoding *rb_enc_check(VALUE,VALUE);
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VALUE rb_enc_associate_index(VALUE, int);
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VALUE rb_enc_associate(VALUE, rb_encoding*);
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void rb_enc_copy(VALUE dst, VALUE src);
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VALUE rb_enc_str_new(const char*, long, rb_encoding*);
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VALUE rb_enc_str_new_cstr(const char*, rb_encoding*);
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VALUE rb_enc_str_new_static(const char*, long, rb_encoding*);
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VALUE rb_enc_reg_new(const char*, long, rb_encoding*, int);
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PRINTF_ARGS(VALUE rb_enc_sprintf(rb_encoding *, const char*, ...), 2, 3);
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VALUE rb_enc_vsprintf(rb_encoding *, const char*, va_list);
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long rb_enc_strlen(const char*, const char*, rb_encoding*);
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char* rb_enc_nth(const char*, const char*, long, rb_encoding*);
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VALUE rb_obj_encoding(VALUE);
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VALUE rb_enc_str_buf_cat(VALUE str, const char *ptr, long len, rb_encoding *enc);
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VALUE rb_enc_uint_chr(unsigned int code, rb_encoding *enc);
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VALUE rb_external_str_new_with_enc(const char *ptr, long len, rb_encoding *);
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VALUE rb_str_export_to_enc(VALUE, rb_encoding *);
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VALUE rb_str_conv_enc(VALUE str, rb_encoding *from, rb_encoding *to);
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VALUE rb_str_conv_enc_opts(VALUE str, rb_encoding *from, rb_encoding *to, int ecflags, VALUE ecopts);
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#if defined(__GNUC__) && !defined(__PCC__)
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#define rb_enc_str_new(str, len, enc) __extension__ ( \
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{ \
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(__builtin_constant_p(str) && __builtin_constant_p(len)) ? \
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rb_enc_str_new_static((str), (len), (enc)) : \
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rb_enc_str_new((str), (len), (enc)); \
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})
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#define rb_enc_str_new_cstr(str, enc) __extension__ ( \
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{ \
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(__builtin_constant_p(str)) ? \
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rb_enc_str_new_static((str), (long)strlen(str), (enc)) : \
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rb_enc_str_new_cstr((str), (enc)); \
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})
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#endif
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PRINTF_ARGS(NORETURN(void rb_enc_raise(rb_encoding *, VALUE, const char*, ...)), 3, 4);
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/* index -> rb_encoding */
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rb_encoding *rb_enc_from_index(int idx);
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/* name -> rb_encoding */
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rb_encoding *rb_enc_find(const char *name);
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/* rb_encoding * -> name */
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#define rb_enc_name(enc) (enc)->name
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/* rb_encoding * -> minlen/maxlen */
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#define rb_enc_mbminlen(enc) (enc)->min_enc_len
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#define rb_enc_mbmaxlen(enc) (enc)->max_enc_len
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/* -> mbclen (no error notification: 0 < ret <= e-p, no exception) */
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int rb_enc_mbclen(const char *p, const char *e, rb_encoding *enc);
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/* -> mbclen (only for valid encoding) */
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int rb_enc_fast_mbclen(const char *p, const char *e, rb_encoding *enc);
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/* -> chlen, invalid or needmore */
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int rb_enc_precise_mbclen(const char *p, const char *e, rb_encoding *enc);
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#define MBCLEN_CHARFOUND_P(ret) ONIGENC_MBCLEN_CHARFOUND_P(ret)
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#define MBCLEN_CHARFOUND_LEN(ret) ONIGENC_MBCLEN_CHARFOUND_LEN(ret)
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#define MBCLEN_INVALID_P(ret) ONIGENC_MBCLEN_INVALID_P(ret)
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#define MBCLEN_NEEDMORE_P(ret) ONIGENC_MBCLEN_NEEDMORE_P(ret)
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#define MBCLEN_NEEDMORE_LEN(ret) ONIGENC_MBCLEN_NEEDMORE_LEN(ret)
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/* -> 0x00..0x7f, -1 */
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int rb_enc_ascget(const char *p, const char *e, int *len, rb_encoding *enc);
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/* -> code (and len) or raise exception */
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unsigned int rb_enc_codepoint_len(const char *p, const char *e, int *len, rb_encoding *enc);
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/* prototype for obsolete function */
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unsigned int rb_enc_codepoint(const char *p, const char *e, rb_encoding *enc);
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/* overriding macro */
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#define rb_enc_codepoint(p,e,enc) rb_enc_codepoint_len((p),(e),0,(enc))
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#define rb_enc_mbc_to_codepoint(p, e, enc) ONIGENC_MBC_TO_CODE((enc),(UChar*)(p),(UChar*)(e))
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/* -> codelen>0 or raise exception */
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int rb_enc_codelen(int code, rb_encoding *enc);
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/* -> 0 for invalid codepoint */
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int rb_enc_code_to_mbclen(int code, rb_encoding *enc);
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#define rb_enc_code_to_mbclen(c, enc) ONIGENC_CODE_TO_MBCLEN((enc), (c));
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/* code,ptr,encoding -> write buf */
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#define rb_enc_mbcput(c,buf,enc) ONIGENC_CODE_TO_MBC((enc),(c),(UChar*)(buf))
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/* start, ptr, end, encoding -> prev_char */
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#define rb_enc_prev_char(s,p,e,enc) ((char *)onigenc_get_prev_char_head((enc),(UChar*)(s),(UChar*)(p),(UChar*)(e)))
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/* start, ptr, end, encoding -> next_char */
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#define rb_enc_left_char_head(s,p,e,enc) ((char *)onigenc_get_left_adjust_char_head((enc),(UChar*)(s),(UChar*)(p),(UChar*)(e)))
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#define rb_enc_right_char_head(s,p,e,enc) ((char *)onigenc_get_right_adjust_char_head((enc),(UChar*)(s),(UChar*)(p),(UChar*)(e)))
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#define rb_enc_step_back(s,p,e,n,enc) ((char *)onigenc_step_back((enc),(UChar*)(s),(UChar*)(p),(UChar*)(e),(int)(n)))
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/* ptr, ptr, encoding -> newline_or_not */
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#define rb_enc_is_newline(p,end,enc) ONIGENC_IS_MBC_NEWLINE((enc),(UChar*)(p),(UChar*)(end))
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#define rb_enc_isctype(c,t,enc) ONIGENC_IS_CODE_CTYPE((enc),(c),(t))
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#define rb_enc_isascii(c,enc) ONIGENC_IS_CODE_ASCII(c)
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#define rb_enc_isalpha(c,enc) ONIGENC_IS_CODE_ALPHA((enc),(c))
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#define rb_enc_islower(c,enc) ONIGENC_IS_CODE_LOWER((enc),(c))
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#define rb_enc_isupper(c,enc) ONIGENC_IS_CODE_UPPER((enc),(c))
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#define rb_enc_ispunct(c,enc) ONIGENC_IS_CODE_PUNCT((enc),(c))
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#define rb_enc_isalnum(c,enc) ONIGENC_IS_CODE_ALNUM((enc),(c))
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#define rb_enc_isprint(c,enc) ONIGENC_IS_CODE_PRINT((enc),(c))
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#define rb_enc_isspace(c,enc) ONIGENC_IS_CODE_SPACE((enc),(c))
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#define rb_enc_isdigit(c,enc) ONIGENC_IS_CODE_DIGIT((enc),(c))
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#define rb_enc_asciicompat(enc) (rb_enc_mbminlen(enc)==1 && !rb_enc_dummy_p(enc))
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int rb_enc_casefold(char *to, const char *p, const char *e, rb_encoding *enc);
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int rb_enc_toupper(int c, rb_encoding *enc);
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int rb_enc_tolower(int c, rb_encoding *enc);
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ID rb_intern3(const char*, long, rb_encoding*);
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ID rb_interned_id_p(const char *, long, rb_encoding *);
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int rb_enc_symname_p(const char*, rb_encoding*);
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int rb_enc_symname2_p(const char*, long, rb_encoding*);
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int rb_enc_str_coderange(VALUE);
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long rb_str_coderange_scan_restartable(const char*, const char*, rb_encoding*, int*);
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int rb_enc_str_asciionly_p(VALUE);
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#define rb_enc_str_asciicompat_p(str) rb_enc_asciicompat(rb_enc_get(str))
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VALUE rb_enc_from_encoding(rb_encoding *enc);
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int rb_enc_unicode_p(rb_encoding *enc);
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rb_encoding *rb_ascii8bit_encoding(void);
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rb_encoding *rb_utf8_encoding(void);
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rb_encoding *rb_usascii_encoding(void);
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rb_encoding *rb_locale_encoding(void);
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rb_encoding *rb_filesystem_encoding(void);
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rb_encoding *rb_default_external_encoding(void);
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rb_encoding *rb_default_internal_encoding(void);
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#ifndef rb_ascii8bit_encindex
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int rb_ascii8bit_encindex(void);
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#endif
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#ifndef rb_utf8_encindex
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int rb_utf8_encindex(void);
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#endif
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#ifndef rb_usascii_encindex
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int rb_usascii_encindex(void);
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#endif
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int rb_locale_encindex(void);
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int rb_filesystem_encindex(void);
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VALUE rb_enc_default_external(void);
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VALUE rb_enc_default_internal(void);
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void rb_enc_set_default_external(VALUE encoding);
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void rb_enc_set_default_internal(VALUE encoding);
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VALUE rb_locale_charmap(VALUE klass);
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long rb_memsearch(const void*,long,const void*,long,rb_encoding*);
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char *rb_enc_path_next(const char *,const char *,rb_encoding*);
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char *rb_enc_path_skip_prefix(const char *,const char *,rb_encoding*);
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char *rb_enc_path_last_separator(const char *,const char *,rb_encoding*);
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char *rb_enc_path_end(const char *,const char *,rb_encoding*);
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const char *ruby_enc_find_basename(const char *name, long *baselen, long *alllen, rb_encoding *enc);
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const char *ruby_enc_find_extname(const char *name, long *len, rb_encoding *enc);
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ID rb_check_id_cstr(const char *ptr, long len, rb_encoding *enc);
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VALUE rb_check_symbol_cstr(const char *ptr, long len, rb_encoding *enc);
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RUBY_EXTERN VALUE rb_cEncoding;
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/* econv stuff */
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typedef enum {
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econv_invalid_byte_sequence,
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econv_undefined_conversion,
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econv_destination_buffer_full,
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econv_source_buffer_empty,
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econv_finished,
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econv_after_output,
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econv_incomplete_input
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} rb_econv_result_t;
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typedef struct rb_econv_t rb_econv_t;
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VALUE rb_str_encode(VALUE str, VALUE to, int ecflags, VALUE ecopts);
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int rb_econv_has_convpath_p(const char* from_encoding, const char* to_encoding);
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int rb_econv_prepare_options(VALUE opthash, VALUE *ecopts, int ecflags);
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int rb_econv_prepare_opts(VALUE opthash, VALUE *ecopts);
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rb_econv_t *rb_econv_open(const char *source_encoding, const char *destination_encoding, int ecflags);
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rb_econv_t *rb_econv_open_opts(const char *source_encoding, const char *destination_encoding, int ecflags, VALUE ecopts);
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rb_econv_result_t rb_econv_convert(rb_econv_t *ec,
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const unsigned char **source_buffer_ptr, const unsigned char *source_buffer_end,
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unsigned char **destination_buffer_ptr, unsigned char *destination_buffer_end,
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int flags);
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void rb_econv_close(rb_econv_t *ec);
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/* result: 0:success -1:failure */
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int rb_econv_set_replacement(rb_econv_t *ec, const unsigned char *str, size_t len, const char *encname);
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/* result: 0:success -1:failure */
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int rb_econv_decorate_at_first(rb_econv_t *ec, const char *decorator_name);
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int rb_econv_decorate_at_last(rb_econv_t *ec, const char *decorator_name);
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VALUE rb_econv_open_exc(const char *senc, const char *denc, int ecflags);
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/* result: 0:success -1:failure */
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int rb_econv_insert_output(rb_econv_t *ec,
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const unsigned char *str, size_t len, const char *str_encoding);
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/* encoding that rb_econv_insert_output doesn't need conversion */
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const char *rb_econv_encoding_to_insert_output(rb_econv_t *ec);
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/* raise an error if the last rb_econv_convert is error */
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void rb_econv_check_error(rb_econv_t *ec);
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/* returns an exception object or nil */
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VALUE rb_econv_make_exception(rb_econv_t *ec);
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int rb_econv_putbackable(rb_econv_t *ec);
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void rb_econv_putback(rb_econv_t *ec, unsigned char *p, int n);
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/* returns the corresponding ASCII compatible encoding for encname,
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* or NULL if encname is not ASCII incompatible encoding. */
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const char *rb_econv_asciicompat_encoding(const char *encname);
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VALUE rb_econv_str_convert(rb_econv_t *ec, VALUE src, int flags);
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VALUE rb_econv_substr_convert(rb_econv_t *ec, VALUE src, long byteoff, long bytesize, int flags);
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VALUE rb_econv_str_append(rb_econv_t *ec, VALUE src, VALUE dst, int flags);
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VALUE rb_econv_substr_append(rb_econv_t *ec, VALUE src, long byteoff, long bytesize, VALUE dst, int flags);
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VALUE rb_econv_append(rb_econv_t *ec, const char *bytesrc, long bytesize, VALUE dst, int flags);
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void rb_econv_binmode(rb_econv_t *ec);
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/* flags for rb_econv_open */
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#define ECONV_ERROR_HANDLER_MASK 0x000000ff
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#define ECONV_INVALID_MASK 0x0000000f
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#define ECONV_INVALID_REPLACE 0x00000002
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#define ECONV_UNDEF_MASK 0x000000f0
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#define ECONV_UNDEF_REPLACE 0x00000020
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#define ECONV_UNDEF_HEX_CHARREF 0x00000030
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#define ECONV_DECORATOR_MASK 0x0000ff00
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#define ECONV_NEWLINE_DECORATOR_MASK 0x00003f00
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#define ECONV_NEWLINE_DECORATOR_READ_MASK 0x00000f00
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#define ECONV_NEWLINE_DECORATOR_WRITE_MASK 0x00003000
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#define ECONV_UNIVERSAL_NEWLINE_DECORATOR 0x00000100
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#define ECONV_CRLF_NEWLINE_DECORATOR 0x00001000
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#define ECONV_CR_NEWLINE_DECORATOR 0x00002000
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#define ECONV_XML_TEXT_DECORATOR 0x00004000
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#define ECONV_XML_ATTR_CONTENT_DECORATOR 0x00008000
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#define ECONV_STATEFUL_DECORATOR_MASK 0x00f00000
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#define ECONV_XML_ATTR_QUOTE_DECORATOR 0x00100000
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#if defined(RUBY_TEST_CRLF_ENVIRONMENT) || defined(_WIN32)
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#define ECONV_DEFAULT_NEWLINE_DECORATOR ECONV_CRLF_NEWLINE_DECORATOR
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#else
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#define ECONV_DEFAULT_NEWLINE_DECORATOR 0
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#endif
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/* end of flags for rb_econv_open */
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/* flags for rb_econv_convert */
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#define ECONV_PARTIAL_INPUT 0x00010000
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#define ECONV_AFTER_OUTPUT 0x00020000
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/* end of flags for rb_econv_convert */
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RUBY_SYMBOL_EXPORT_END
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#if defined(__cplusplus)
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#if 0
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{ /* satisfy cc-mode */
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#endif
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} /* extern "C" { */
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#endif
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#endif /* RUBY_ENCODING_H */
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