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* transcode_data.h (rb_transcoding): remove stateful field. 

add state field.
  (TRANSCODING_STATE): defined.
  (rb_transcoder): add fields: state_size, state_init_func,
  state_fini_func.
  change rb_transcoding* argument to void*.

* transcode.c (transcode_restartable0): use TRANSCODING_STATE for
  first arguments of transcoder functions.
  (rb_transcoding_open_by_transcoder): initialize state field.
  (rb_transcoding_close): finalize state field.

* tool/transcode-tblgen.rb: provide state size/init/fini.

* enc/trans/newline.trans (universal_newline_init): defined.
  (fun_so_universal_newline): take void* as a state pointer.
  (rb_universal_newline): provide state size/init/fini.
  (rb_crlf_newline): ditto.
  (rb_cr_newline): ditto.

* enc/trans/iso2022.trans (iso2022jp_init): defined.
  (fun_si_iso2022jp_to_eucjp): take void* as a state pointer.
  (fun_so_iso2022jp_to_eucjp): ditto.
  (fun_so_eucjp_to_iso2022jp): ditto.
  (iso2022jp_reset_sequence_size): ditto.
  (finish_eucjp_to_iso2022jp): ditto.
  (rb_ISO_2022_JP_to_EUC_JP): provide state size/init/fini.
  (rb_EUC_JP_to_ISO_2022_JP): ditto.

* enc/trans/utf_16_32.trans (fun_so_from_utf_16be): take void* as a
  state pointer.
  (fun_so_to_utf_16be): ditto.
  (fun_so_from_utf_16le): ditto.
  (fun_so_to_utf_16le): ditto.
  (fun_so_from_utf_32be): ditto.
  (fun_so_to_utf_32be): ditto.
  (fun_so_from_utf_32le): ditto.
  (fun_so_to_utf_32le): ditto.
  (rb_from_UTF_16BE): provide state size/init/fini.
  (rb_to_UTF_16BE): ditto.
  (rb_from_UTF_16LE): ditto.
  (rb_to_UTF_16LE): ditto.
  (rb_from_UTF_32BE): ditto.
  (rb_to_UTF_32BE): ditto.
  (rb_from_UTF_32LE): ditto.
  (rb_to_UTF_32LE): ditto.

* enc/trans/japanese.trans (fun_so_eucjp2sjis): take void* as a state
  pointer.
  (fun_so_sjis2eucjp): ditto.
  (rb_eucjp2sjis): provide state size/init/fini.
  (rb_sjis2eucjp): provide state size/init/fini.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@19096 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
akr 2008-09-03 14:12:06 +00:00
Родитель fce093432e
Коммит f6441bf61c
8 изменённых файлов: 168 добавлений и 63 удалений
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55
ChangeLog
Просмотреть файл

@ -1,3 +1,58 @@
Wed Sep 3 23:03:37 2008 Tanaka Akira <akr@fsij.org>
* transcode_data.h (rb_transcoding): remove stateful field.
add state field.
(TRANSCODING_STATE): defined.
(rb_transcoder): add fields: state_size, state_init_func,
state_fini_func.
change rb_transcoding* argument to void*.
* transcode.c (transcode_restartable0): use TRANSCODING_STATE for
first arguments of transcoder functions.
(rb_transcoding_open_by_transcoder): initialize state field.
(rb_transcoding_close): finalize state field.
* tool/transcode-tblgen.rb: provide state size/init/fini.
* enc/trans/newline.trans (universal_newline_init): defined.
(fun_so_universal_newline): take void* as a state pointer.
(rb_universal_newline): provide state size/init/fini.
(rb_crlf_newline): ditto.
(rb_cr_newline): ditto.
* enc/trans/iso2022.trans (iso2022jp_init): defined.
(fun_si_iso2022jp_to_eucjp): take void* as a state pointer.
(fun_so_iso2022jp_to_eucjp): ditto.
(fun_so_eucjp_to_iso2022jp): ditto.
(iso2022jp_reset_sequence_size): ditto.
(finish_eucjp_to_iso2022jp): ditto.
(rb_ISO_2022_JP_to_EUC_JP): provide state size/init/fini.
(rb_EUC_JP_to_ISO_2022_JP): ditto.
* enc/trans/utf_16_32.trans (fun_so_from_utf_16be): take void* as a
state pointer.
(fun_so_to_utf_16be): ditto.
(fun_so_from_utf_16le): ditto.
(fun_so_to_utf_16le): ditto.
(fun_so_from_utf_32be): ditto.
(fun_so_to_utf_32be): ditto.
(fun_so_from_utf_32le): ditto.
(fun_so_to_utf_32le): ditto.
(rb_from_UTF_16BE): provide state size/init/fini.
(rb_to_UTF_16BE): ditto.
(rb_from_UTF_16LE): ditto.
(rb_to_UTF_16LE): ditto.
(rb_from_UTF_32BE): ditto.
(rb_to_UTF_32BE): ditto.
(rb_from_UTF_32LE): ditto.
(rb_to_UTF_32LE): ditto.
* enc/trans/japanese.trans (fun_so_eucjp2sjis): take void* as a state
pointer.
(fun_so_sjis2eucjp): ditto.
(rb_eucjp2sjis): provide state size/init/fini.
(rb_sjis2eucjp): provide state size/init/fini.
Wed Sep 3 22:31:11 2008 Yuki Sonoda (Yugui) <yugui@yugui.jp>
* lib/mathn.rb (Integer): moved into prime.rb.

61
enc/trans/iso2022.trans
Просмотреть файл

@ -27,10 +27,22 @@
<%= transcode_generated_code %>
static VALUE
fun_si_iso2022jp_to_eucjp(rb_transcoding* t, const unsigned char* s, size_t l)
#define G0_ASCII 0
#define G0_JISX0208 1
static int
iso2022jp_init(void *statep)
{
if (t->stateful[0] == 0)
unsigned char *sp = statep;
*sp = G0_ASCII;
return 0;
}
static VALUE
fun_si_iso2022jp_to_eucjp(void *statep, const unsigned char *s, size_t l)
{
unsigned char *sp = statep;
if (*sp == G0_ASCII)
return (VALUE)NOMAP;
else if (0x21 <= s[0] && s[0] <= 0x7e)
return (VALUE)iso2022jp_to_eucjp_jisx0208_rest;
@ -39,14 +51,15 @@ fun_si_iso2022jp_to_eucjp(rb_transcoding* t, const unsigned char* s, size_t l)
}
static int
fun_so_iso2022jp_to_eucjp(rb_transcoding* t, const unsigned char* s, size_t l, unsigned char* o)
fun_so_iso2022jp_to_eucjp(void *statep, const unsigned char *s, size_t l, unsigned char* o)
{
unsigned char *sp = statep;
if (s[0] == 0x1b) {
if (s[1] == '(') {
switch (s[l-1]) {
case 'B':
case 'J':
t->stateful[0] = 0;
*sp = G0_ASCII;
break;
}
}
@ -54,7 +67,7 @@ fun_so_iso2022jp_to_eucjp(rb_transcoding* t, const unsigned char* s, size_t l, u
switch (s[l-1]) {
case '@':
case 'B':
t->stateful[0] = 1;
*sp = G0_JISX0208;
break;
}
}
@ -75,31 +88,28 @@ rb_ISO_2022_JP_to_EUC_JP = {
3, /* max_input */
3, /* max_output */
stateful_decoder, /* stateful_type */
1, iso2022jp_init, iso2022jp_init, /* state_size, state_init, state_fini */
NULL, fun_si_iso2022jp_to_eucjp, NULL, fun_so_iso2022jp_to_eucjp
};
static int
fun_so_eucjp_to_iso2022jp(rb_transcoding *t, const unsigned char *s, size_t l, unsigned char *o)
fun_so_eucjp_to_iso2022jp(void *statep, const unsigned char *s, size_t l, unsigned char *o)
{
unsigned char *sp = statep;
unsigned char *output0 = o;
if (t->stateful[0] == 0) {
t->stateful[0] = 1; /* initialized flag */
t->stateful[1] = 1; /* G0 = ASCII */
}
if (l != t->stateful[1]) {
if (*sp != (l == 1 ? G0_ASCII : G0_JISX0208)) {
if (l == 1) {
*o++ = 0x1b;
*o++ = '(';
*o++ = 'B';
t->stateful[1] = 1; /* G0 = ASCII */
*sp = G0_ASCII;
}
else {
*o++ = 0x1b;
*o++ = '$';
*o++ = 'B';
t->stateful[1] = 2; /* G0 = JIS X 0208 1983 */
*sp = G0_JISX0208; /* JIS X 0208 1983 */
}
}
@ -115,27 +125,27 @@ fun_so_eucjp_to_iso2022jp(rb_transcoding *t, const unsigned char *s, size_t l, u
}
static int
iso2022jp_reset_sequence_size(rb_transcoding *t)
iso2022jp_reset_sequence_size(void *statep)
{
if (t->stateful[1] == 2)
unsigned char *sp = statep;
if (*sp == G0_JISX0208)
return 3;
return 0;
}
static int
finish_eucjp_to_iso2022jp(rb_transcoding *t, unsigned char *o)
finish_eucjp_to_iso2022jp(void *statep, unsigned char *o)
{
unsigned char *sp = statep;
unsigned char *output0 = o;
if (t->stateful[0] == 0)
if (*sp == G0_ASCII)
return 0;
if (t->stateful[1] != 1) {
*o++ = 0x1b;
*o++ = '(';
*o++ = 'B';
t->stateful[1] = 1;
}
*o++ = 0x1b;
*o++ = '(';
*o++ = 'B';
*sp = G0_ASCII;
return o - output0;
}
@ -148,6 +158,7 @@ rb_EUC_JP_to_ISO_2022_JP = {
3, /* max_input */
5, /* max_output */
stateful_encoder, /* stateful_type */
1, iso2022jp_init, iso2022jp_init, /* state_size, state_init, state_fini */
NULL, NULL, NULL, fun_so_eucjp_to_iso2022jp,
finish_eucjp_to_iso2022jp,
iso2022jp_reset_sequence_size, finish_eucjp_to_iso2022jp

8
enc/trans/japanese.trans
Просмотреть файл

@ -20,7 +20,7 @@
<%= transcode_generated_code %>
static int
fun_so_eucjp2sjis(rb_transcoding *t, const unsigned char *s, size_t l, unsigned char* o)
fun_so_eucjp2sjis(void *statep, const unsigned char *s, size_t l, unsigned char *o)
{
if (s[0] == 0x8e) {
o[0] = s[1];
@ -41,7 +41,7 @@ fun_so_eucjp2sjis(rb_transcoding *t, const unsigned char *s, size_t l, unsigned
}
static int
fun_so_sjis2eucjp(rb_transcoding *t, const unsigned char *s, size_t l, unsigned char* o)
fun_so_sjis2eucjp(void *statep, const unsigned char *s, size_t l, unsigned char *o)
{
if (l == 1) {
o[0] = '\x8e';
@ -49,7 +49,7 @@ fun_so_sjis2eucjp(rb_transcoding *t, const unsigned char *s, size_t l, unsigned
return 2;
}
else {
int h, m, l;
int h, l;
h = s[0];
l = s[1];
if (0xe0 <= h)
@ -74,6 +74,7 @@ rb_eucjp2sjis = {
3, /* max_input */
2, /* max_output */
stateless_converter, /* stateful_type */
0, NULL, NULL, /* state_size, state_init, state_fini */
NULL, NULL, NULL, fun_so_eucjp2sjis
};
@ -85,6 +86,7 @@ rb_sjis2eucjp = {
2, /* max_input */
2, /* max_output */
stateless_converter, /* stateful_type */
0, NULL, NULL, /* state_size, state_init, state_fini */
NULL, NULL, NULL, fun_so_sjis2eucjp
};

31
enc/trans/newline.trans
Просмотреть файл

@ -21,33 +21,41 @@
<%= transcode_generated_code %>
#define NORMAL 0
#define JUST_AFTER_CR 1
static int
fun_so_universal_newline(rb_transcoding* t, const unsigned char* s, size_t l, unsigned char* o)
universal_newline_init(void *statep)
{
unsigned char *sp = statep;
*sp = NORMAL;
return 0;
}
static int
fun_so_universal_newline(void *statep, const unsigned char* s, size_t l, unsigned char* o)
{
unsigned char *sp = statep;
int len;
/*
t->stateful[0] == 0 : normal
t->stateful[0] == 1 : just after '\r'
*/
if (s[0] == '\n') {
if (t->stateful[0] == 0) {
if (*sp == NORMAL) {
o[0] = '\n';
len = 1;
}
else {
else { /* JUST_AFTER_CR */
len = 0;
}
t->stateful[0] = 0;
*sp = NORMAL;
}
else if (s[0] == '\r') {
o[0] = '\n';
len = 1;
t->stateful[0] = 1;
*sp = JUST_AFTER_CR;
}
else {
o[0] = s[0];
len = 1;
t->stateful[0] = 0;
*sp = NORMAL;
}
return len;
}
@ -60,6 +68,7 @@ rb_universal_newline = {
1, /* max_input */
1, /* max_output */
stateful_decoder, /* stateful_type */
1, universal_newline_init, universal_newline_init, /* state_size, state_init, state_fini */
NULL, NULL, NULL, fun_so_universal_newline
};
@ -71,6 +80,7 @@ rb_crlf_newline = {
1, /* max_input */
2, /* max_output */
stateless_converter, /* stateful_type */
0, NULL, NULL, /* state_size, state_init, state_fini */
NULL, NULL, NULL, NULL
};
@ -82,6 +92,7 @@ rb_cr_newline = {
1, /* max_input */
1, /* max_output */
stateless_converter, /* stateful_type */
0, NULL, NULL, /* state_size, state_init, state_fini */
NULL, NULL, NULL, NULL
};

24
enc/trans/utf_16_32.trans
Просмотреть файл

@ -38,7 +38,7 @@
<%= transcode_generated_code %>
static int
fun_so_from_utf_16be(rb_transcoding* t, const unsigned char* s, size_t l, unsigned char* o)
fun_so_from_utf_16be(void *statep, const unsigned char *s, size_t l, unsigned char *o)
{
if (!s[0] && s[1]<0x80) {
o[0] = s[1];
@ -66,7 +66,7 @@ fun_so_from_utf_16be(rb_transcoding* t, const unsigned char* s, size_t l, unsign
}
static int
fun_so_to_utf_16be(rb_transcoding* t, const unsigned char* s, size_t l, unsigned char* o)
fun_so_to_utf_16be(void *statep, const unsigned char *s, size_t l, unsigned char *o)
{
if (!(s[0]&0x80)) {
o[0] = 0x00;
@ -94,7 +94,7 @@ fun_so_to_utf_16be(rb_transcoding* t, const unsigned char* s, size_t l, unsigned
}
static int
fun_so_from_utf_16le(rb_transcoding* t, const unsigned char* s, size_t l, unsigned char* o)
fun_so_from_utf_16le(void *statep, const unsigned char *s, size_t l, unsigned char *o)
{
if (!s[1] && s[0]<0x80) {
o[0] = s[0];
@ -122,7 +122,7 @@ fun_so_from_utf_16le(rb_transcoding* t, const unsigned char* s, size_t l, unsign
}
static int
fun_so_to_utf_16le(rb_transcoding* t, const unsigned char* s, size_t l, unsigned char* o)
fun_so_to_utf_16le(void *statep, const unsigned char *s, size_t l, unsigned char *o)
{
if (!(s[0]&0x80)) {
o[1] = 0x00;
@ -150,7 +150,7 @@ fun_so_to_utf_16le(rb_transcoding* t, const unsigned char* s, size_t l, unsigned
}
static int
fun_so_from_utf_32be(rb_transcoding* t, const unsigned char* s, size_t l, unsigned char* o)
fun_so_from_utf_32be(void *statep, const unsigned char *s, size_t l, unsigned char *o)
{
if (!s[1]) {
if (s[2]==0 && s[3]<0x80) {
@ -179,7 +179,7 @@ fun_so_from_utf_32be(rb_transcoding* t, const unsigned char* s, size_t l, unsign
}
static int
fun_so_to_utf_32be(rb_transcoding* t, const unsigned char* s, size_t l, unsigned char* o)
fun_so_to_utf_32be(void *statep, const unsigned char *s, size_t l, unsigned char *o)
{
o[0] = 0;
if (!(s[0]&0x80)) {
@ -205,7 +205,7 @@ fun_so_to_utf_32be(rb_transcoding* t, const unsigned char* s, size_t l, unsigned
}
static int
fun_so_from_utf_32le(rb_transcoding* t, const unsigned char* s, size_t l, unsigned char* o)
fun_so_from_utf_32le(void *statep, const unsigned char *s, size_t l, unsigned char *o)
{
if (!s[2]) {
if (s[1]==0 && s[0]<0x80) {
@ -234,7 +234,7 @@ fun_so_from_utf_32le(rb_transcoding* t, const unsigned char* s, size_t l, unsign
}
static int
fun_so_to_utf_32le(rb_transcoding* t, const unsigned char* s, size_t l, unsigned char* o)
fun_so_to_utf_32le(void *statep, const unsigned char *s, size_t l, unsigned char *o)
{
o[3] = 0;
if (!(s[0]&0x80)) {
@ -267,6 +267,7 @@ rb_from_UTF_16BE = {
4, /* max_input */
4, /* max_output */
stateless_converter, /* stateful_type */
0, NULL, NULL, /* state_size, state_init, state_fini */
NULL, NULL, NULL, fun_so_from_utf_16be
};
@ -278,6 +279,7 @@ rb_to_UTF_16BE = {
4, /* max_input */
4, /* max_output */
stateless_converter, /* stateful_type */
0, NULL, NULL, /* state_size, state_init, state_fini */
NULL, NULL, NULL, fun_so_to_utf_16be
};
@ -289,6 +291,7 @@ rb_from_UTF_16LE = {
4, /* max_input */
4, /* max_output */
stateless_converter, /* stateful_type */
0, NULL, NULL, /* state_size, state_init, state_fini */
NULL, NULL, NULL, fun_so_from_utf_16le
};
@ -300,6 +303,7 @@ rb_to_UTF_16LE = {
4, /* max_input */
4, /* max_output */
stateless_converter, /* stateful_type */
0, NULL, NULL, /* state_size, state_init, state_fini */
NULL, NULL, NULL, fun_so_to_utf_16le
};
@ -311,6 +315,7 @@ rb_from_UTF_32BE = {
4, /* max_input */
4, /* max_output */
stateless_converter, /* stateful_type */
0, NULL, NULL, /* state_size, state_init, state_fini */
NULL, NULL, NULL, fun_so_from_utf_32be
};
@ -322,6 +327,7 @@ rb_to_UTF_32BE = {
4, /* max_input */
4, /* max_output */
stateless_converter, /* stateful_type */
0, NULL, NULL, /* state_size, state_init, state_fini */
NULL, NULL, NULL, fun_so_to_utf_32be
};
@ -333,6 +339,7 @@ rb_from_UTF_32LE = {
4, /* max_input */
4, /* max_output */
stateless_converter, /* stateful_type */
0, NULL, NULL, /* state_size, state_init, state_fini */
NULL, NULL, NULL, fun_so_from_utf_32le
};
@ -344,6 +351,7 @@ rb_to_UTF_32LE = {
4, /* max_input */
4, /* max_output */
stateless_converter, /* stateful_type */
0, NULL, NULL, /* state_size, state_init, state_fini */
NULL, NULL, NULL, fun_so_to_utf_32le
};

1
tool/transcode-tblgen.rb
Просмотреть файл

@ -590,6 +590,7 @@ static const rb_transcoder
#{max_input}, /* max_input */
#{max_output}, /* max_output */
stateless_converter, /* stateful_type */
0, NULL, NULL, /* state_size, state_init, state_fini */
NULL, NULL, NULL, NULL,
NULL, NULL, NULL
};

27
transcode.c
Просмотреть файл

@ -544,22 +544,22 @@ transcode_restartable0(const unsigned char **in_pos, unsigned char **out_pos,
SUSPEND_OBUF(19); *out_p++ = getBT3(next_info);
continue;
case FUNii:
next_info = (VALUE)(*tr->func_ii)(tc, next_info);
next_info = (VALUE)(*tr->func_ii)(TRANSCODING_STATE(tc), next_info);
goto follow_info;
case FUNsi:
{
const unsigned char *char_start;
size_t char_len;
char_start = transcode_char_start(tc, *in_pos, inchar_start, in_p, &char_len);
next_info = (VALUE)(*tr->func_si)(tc, char_start, (size_t)char_len);
next_info = (VALUE)(*tr->func_si)(TRANSCODING_STATE(tc), char_start, (size_t)char_len);
goto follow_info;
}
case FUNio:
SUSPEND_OBUF(13);
if (tr->max_output <= out_stop - out_p)
out_p += (VALUE)(*tr->func_io)(tc, next_info, out_p);
out_p += (VALUE)(*tr->func_io)(TRANSCODING_STATE(tc), next_info, out_p);
else {
writebuf_len = (VALUE)(*tr->func_io)(tc, next_info, TRANSCODING_WRITEBUF(tc));
writebuf_len = (VALUE)(*tr->func_io)(TRANSCODING_STATE(tc), next_info, TRANSCODING_WRITEBUF(tc));
writebuf_off = 0;
while (writebuf_off < writebuf_len) {
SUSPEND_OBUF(20);
@ -574,11 +574,11 @@ transcode_restartable0(const unsigned char **in_pos, unsigned char **out_pos,
SUSPEND_OBUF(14);
if (tr->max_output <= out_stop - out_p) {
char_start = transcode_char_start(tc, *in_pos, inchar_start, in_p, &char_len);
out_p += (VALUE)(*tr->func_so)(tc, char_start, (size_t)char_len, out_p);
out_p += (VALUE)(*tr->func_so)(TRANSCODING_STATE(tc), char_start, (size_t)char_len, out_p);
}
else {
char_start = transcode_char_start(tc, *in_pos, inchar_start, in_p, &char_len);
writebuf_len = (VALUE)(*tr->func_so)(tc, char_start, (size_t)char_len, TRANSCODING_WRITEBUF(tc));
writebuf_len = (VALUE)(*tr->func_so)(TRANSCODING_STATE(tc), char_start, (size_t)char_len, TRANSCODING_WRITEBUF(tc));
writebuf_off = 0;
while (writebuf_off < writebuf_len) {
SUSPEND_OBUF(22);
@ -632,10 +632,10 @@ transcode_restartable0(const unsigned char **in_pos, unsigned char **out_pos,
if (tr->finish_func) {
SUSPEND_OBUF(4);
if (tr->max_output <= out_stop - out_p) {
out_p += tr->finish_func(tc, out_p);
out_p += tr->finish_func(TRANSCODING_STATE(tc), out_p);
}
else {
writebuf_len = tr->finish_func(tc, TRANSCODING_WRITEBUF(tc));
writebuf_len = tr->finish_func(TRANSCODING_STATE(tc), TRANSCODING_WRITEBUF(tc));
writebuf_off = 0;
while (writebuf_off < writebuf_len) {
SUSPEND_OBUF(23);
@ -687,7 +687,11 @@ rb_transcoding_open_by_transcoder(const rb_transcoder *tr, int flags)
tc = ALLOC(rb_transcoding);
tc->transcoder = tr;
tc->flags = flags;
memset(tc->stateful, 0, sizeof(tc->stateful));
if (TRANSCODING_STATE_EMBED_MAX < tr->state_size)
tc->state = xmalloc(tr->state_size);
if (tr->state_init_func) {
(tr->state_init_func)(TRANSCODING_STATE(tc)); /* xxx: check return value */
}
tc->resume_position = 0;
tc->recognized_len = 0;
tc->readagain_len = 0;
@ -718,6 +722,11 @@ static void
rb_transcoding_close(rb_transcoding *tc)
{
const rb_transcoder *tr = tc->transcoder;
if (tr->state_fini_func) {
(tr->state_fini_func)(TRANSCODING_STATE(tc)); /* check return value? */
}
if (TRANSCODING_STATE_EMBED_MAX < tr->state_size)
xfree(tc->state);
if (sizeof(tc->readbuf.ary) < tr->max_input)
xfree(tc->readbuf.ptr);
if (sizeof(tc->writebuf.ary) < tr->max_output)

24
transcode_data.h
Просмотреть файл

@ -90,7 +90,7 @@ typedef struct rb_transcoding {
unsigned char *ptr; /* length: max_output */
} writebuf;
unsigned char stateful[256]; /* opaque data for stateful encoding */
void *state; /* opaque data for stateful encoding */
} rb_transcoding;
#define TRANSCODING_READBUF(tc) \
((tc)->transcoder->max_input <= sizeof((tc)->readbuf.ary) ? \
@ -100,6 +100,11 @@ typedef struct rb_transcoding {
((tc)->transcoder->max_output <= sizeof((tc)->writebuf.ary) ? \
(tc)->writebuf.ary : \
(tc)->writebuf.ptr)
#define TRANSCODING_STATE_EMBED_MAX sizeof(void *)
#define TRANSCODING_STATE(tc) \
((tc)->transcoder->state_size <= sizeof((tc)->state) ? \
(void *)&(tc)->state : \
(tc)->state)
/* static structure, one per supported encoding pair */
struct rb_transcoder {
@ -115,13 +120,16 @@ struct rb_transcoder {
int max_input;
int max_output;
rb_transcoder_stateful_type_t stateful_type;
VALUE (*func_ii)(rb_transcoding*, VALUE); /* info -> info */
VALUE (*func_si)(rb_transcoding*, const unsigned char*, size_t); /* start -> info */
int (*func_io)(rb_transcoding*, VALUE, const unsigned char*); /* info -> output */
int (*func_so)(rb_transcoding*, const unsigned char*, size_t, unsigned char*); /* start -> output */
int (*finish_func)(rb_transcoding*, unsigned char*); /* -> output */
int (*resetsize_func)(rb_transcoding*); /* -> len */
int (*resetstate_func)(rb_transcoding*, unsigned char*); /* -> output */
size_t state_size;
int (*state_init_func)(void*); /* 0:success !=0:failure(errno) */
int (*state_fini_func)(void*); /* 0:success !=0:failure(errno) */
VALUE (*func_ii)(void*, VALUE); /* info -> info */
VALUE (*func_si)(void*, const unsigned char*, size_t); /* start -> info */
int (*func_io)(void*, VALUE, const unsigned char*); /* info -> output */
int (*func_so)(void*, const unsigned char*, size_t, unsigned char*); /* start -> output */
int (*finish_func)(void*, unsigned char*); /* -> output */
int (*resetsize_func)(void*); /* -> len */
int (*resetstate_func)(void*, unsigned char*); /* -> output */
};
void rb_declare_transcoder(const char *enc1, const char *enc2, const char *lib);