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-rw-r--r--lib/libiconv_modules/VIQR/citrus_viqr.c494
1 files changed, 494 insertions, 0 deletions
diff --git a/lib/libiconv_modules/VIQR/citrus_viqr.c b/lib/libiconv_modules/VIQR/citrus_viqr.c
new file mode 100644
index 0000000..bd26749
--- /dev/null
+++ b/lib/libiconv_modules/VIQR/citrus_viqr.c
@@ -0,0 +1,494 @@
+/* $FreeBSD$ */
+/* $NetBSD: citrus_viqr.c,v 1.4 2008/06/14 16:01:08 tnozaki Exp $ */
+
+/*-
+ * Copyright (c)2006 Citrus Project,
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+
+#include <sys/cdefs.h>
+#include <sys/queue.h>
+#include <sys/types.h>
+
+#include <assert.h>
+#include <errno.h>
+#include <limits.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <wchar.h>
+
+#include "citrus_namespace.h"
+#include "citrus_types.h"
+#include "citrus_bcs.h"
+#include "citrus_module.h"
+#include "citrus_stdenc.h"
+#include "citrus_viqr.h"
+
+#define ESCAPE '\\'
+
+/*
+ * this table generated from RFC 1456.
+ */
+static const char *mnemonic_rfc1456[0x100] = {
+ NULL , NULL , "A(?", NULL , NULL , "A(~", "A^~", NULL ,
+ NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL ,
+ NULL , NULL , NULL , NULL , "Y?" , NULL , NULL , NULL ,
+ NULL , "Y~" , NULL , NULL , NULL , NULL , "Y." , NULL ,
+ NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL ,
+ NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL ,
+ NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL ,
+ NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL ,
+ NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL ,
+ NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL ,
+ NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL ,
+ NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL ,
+ NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL ,
+ NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL ,
+ NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL ,
+ NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL ,
+ "A." , "A('", "A(`", "A(.", "A^'", "A^`", "A^?", "A^.",
+ "E~" , "E." , "E^'", "E^`", "E^?", "E^~", "E^.", "O^'",
+ "O^`", "O^?", "O^~", "O^.", "O+.", "O+'", "O+`", "O+?",
+ "I." , "O?" , "O." , "I?" , "U?" , "U~" , "U." , "Y`" ,
+ "O~" , "a('", "a(`", "a(.", "a^'", "a^`", "a^?", "a^.",
+ "e~" , "e." , "e^'", "e^`", "e^?", "e^~", "e^.", "o^'",
+ "o^`", "o^?", "o^~", "O+~", "O+" , "o^.", "o+`", "o+?",
+ "i." , "U+.", "U+'", "U+`", "U+?", "o+" , "o+'", "U+" ,
+ "A`" , "A'" , "A^" , "A~" , "A?" , "A(" , "a(?", "a(~",
+ "E`" , "E'" , "E^" , "E?" , "I`" , "I'" , "I~" , "y`" ,
+ "DD" , "u+'", "O`" , "O'" , "O^" , "a." , "y?" , "u+`",
+ "u+?", "U`" , "U'" , "y~" , "y." , "Y'" , "o+~", "u+" ,
+ "a`" , "a'" , "a^" , "a~" , "a?" , "a(" , "u+~", "a^~",
+ "e`" , "e'" , "e^" , "e?" , "i`" , "i'" , "i~" , "i?" ,
+ "dd" , "u+.", "o`" , "o'" , "o^" , "o~" , "o?" , "o." ,
+ "u." , "u`" , "u'" , "u~" , "u?" , "y'" , "o+.", "U+~",
+};
+
+typedef struct {
+ const char *name;
+ wchar_t value;
+} mnemonic_def_t;
+
+static const mnemonic_def_t mnemonic_ext[] = {
+/* add extra mnemonic here (should be sorted by wchar_t order). */
+};
+static const size_t mnemonic_ext_size =
+ sizeof(mnemonic_ext) / sizeof(mnemonic_def_t);
+
+static const char *
+mnemonic_ext_find(wchar_t wc, const mnemonic_def_t *head, size_t n)
+{
+ const mnemonic_def_t *mid;
+
+ for (; n > 0; n >>= 1) {
+ mid = head + (n >> 1);
+ if (mid->value == wc)
+ return (mid->name);
+ else if (mid->value < wc) {
+ head = mid + 1;
+ --n;
+ }
+ }
+ return (NULL);
+}
+
+struct mnemonic_t;
+typedef TAILQ_HEAD(mnemonic_list_t, mnemonic_t) mnemonic_list_t;
+typedef struct mnemonic_t {
+ TAILQ_ENTRY(mnemonic_t) entry;
+ struct mnemonic_t *parent;
+ mnemonic_list_t child;
+ wchar_t value;
+ int ascii;
+} mnemonic_t;
+
+static mnemonic_t *
+mnemonic_list_find(mnemonic_list_t *ml, int ch)
+{
+ mnemonic_t *m;
+
+ TAILQ_FOREACH(m, ml, entry) {
+ if (m->ascii == ch)
+ return (m);
+ }
+
+ return (NULL);
+}
+
+static mnemonic_t *
+mnemonic_create(mnemonic_t *parent, int ascii, wchar_t value)
+{
+ mnemonic_t *m;
+
+ m = malloc(sizeof(*m));
+ if (m != NULL) {
+ m->parent = parent;
+ m->ascii = ascii;
+ m->value = value;
+ TAILQ_INIT(&m->child);
+ }
+
+ return (m);
+}
+
+static int
+mnemonic_append_child(mnemonic_t *m, const char *s,
+ wchar_t value, wchar_t invalid)
+{
+ mnemonic_t *m0;
+ int ch;
+
+ ch = (unsigned char)*s++;
+ if (ch == '\0')
+ return (EINVAL);
+ m0 = mnemonic_list_find(&m->child, ch);
+ if (m0 == NULL) {
+ m0 = mnemonic_create(m, ch, (wchar_t)ch);
+ if (m0 == NULL)
+ return (ENOMEM);
+ TAILQ_INSERT_TAIL(&m->child, m0, entry);
+ }
+ m = m0;
+ for (m0 = NULL; (ch = (unsigned char)*s) != '\0'; ++s) {
+ m0 = mnemonic_list_find(&m->child, ch);
+ if (m0 == NULL) {
+ m0 = mnemonic_create(m, ch, invalid);
+ if (m0 == NULL)
+ return (ENOMEM);
+ TAILQ_INSERT_TAIL(&m->child, m0, entry);
+ }
+ m = m0;
+ }
+ if (m0 == NULL)
+ return (EINVAL);
+ m0->value = value;
+
+ return (0);
+}
+
+static void
+mnemonic_destroy(mnemonic_t *m)
+{
+ mnemonic_t *m0;
+
+ TAILQ_FOREACH(m0, &m->child, entry)
+ mnemonic_destroy(m0);
+ free(m);
+}
+
+typedef struct {
+ mnemonic_t *mroot;
+ wchar_t invalid;
+ size_t mb_cur_max;
+} _VIQREncodingInfo;
+
+typedef struct {
+ int chlen;
+ char ch[MB_LEN_MAX];
+} _VIQRState;
+
+#define _CEI_TO_EI(_cei_) (&(_cei_)->ei)
+#define _CEI_TO_STATE(_cei_, _func_) (_cei_)->states.s_##_func_
+
+#define _FUNCNAME(m) _citrus_VIQR_##m
+#define _ENCODING_INFO _VIQREncodingInfo
+#define _ENCODING_STATE _VIQRState
+#define _ENCODING_MB_CUR_MAX(_ei_) (_ei_)->mb_cur_max
+#define _ENCODING_IS_STATE_DEPENDENT 1
+#define _STATE_NEEDS_EXPLICIT_INIT(_ps_) 0
+
+static __inline void
+/*ARGSUSED*/
+_citrus_VIQR_init_state(_VIQREncodingInfo * __restrict ei __unused,
+ _VIQRState * __restrict psenc)
+{
+
+ psenc->chlen = 0;
+}
+
+static __inline void
+/*ARGSUSED*/
+_citrus_VIQR_pack_state(_VIQREncodingInfo * __restrict ei __unused,
+ void *__restrict pspriv, const _VIQRState * __restrict psenc)
+{
+
+ memcpy(pspriv, (const void *)psenc, sizeof(*psenc));
+}
+
+static __inline void
+/*ARGSUSED*/
+_citrus_VIQR_unpack_state(_VIQREncodingInfo * __restrict ei __unused,
+ _VIQRState * __restrict psenc, const void * __restrict pspriv)
+{
+
+ memcpy((void *)psenc, pspriv, sizeof(*psenc));
+}
+
+static int
+_citrus_VIQR_mbrtowc_priv(_VIQREncodingInfo * __restrict ei,
+ wchar_t * __restrict pwc, char ** __restrict s, size_t n,
+ _VIQRState * __restrict psenc, size_t * __restrict nresult)
+{
+ mnemonic_t *m, *m0;
+ char *s0;
+ wchar_t wc;
+ ssize_t i;
+ int ch, escape;
+
+ if (*s == NULL) {
+ _citrus_VIQR_init_state(ei, psenc);
+ *nresult = (size_t)_ENCODING_IS_STATE_DEPENDENT;
+ return (0);
+ }
+ s0 = *s;
+
+ i = 0;
+ m = ei->mroot;
+ for (escape = 0;;) {
+ if (psenc->chlen == i) {
+ if (n-- < 1) {
+ *s = s0;
+ *nresult = (size_t)-2;
+ return (0);
+ }
+ psenc->ch[psenc->chlen++] = *s0++;
+ }
+ ch = (unsigned char)psenc->ch[i++];
+ if (ch == ESCAPE) {
+ if (m != ei->mroot)
+ break;
+ escape = 1;
+ continue;
+ }
+ if (escape != 0)
+ break;
+ m0 = mnemonic_list_find(&m->child, ch);
+ if (m0 == NULL)
+ break;
+ m = m0;
+ }
+ while (m != ei->mroot) {
+ --i;
+ if (m->value != ei->invalid)
+ break;
+ m = m->parent;
+ }
+ if (ch == ESCAPE && m != ei->mroot)
+ ++i;
+ psenc->chlen -= i;
+ memmove(&psenc->ch[0], &psenc->ch[i], psenc->chlen);
+ wc = (m == ei->mroot) ? (wchar_t)ch : m->value;
+ if (pwc != NULL)
+ *pwc = wc;
+ *nresult = (size_t)(wc == 0 ? 0 : s0 - *s);
+ *s = s0;
+
+ return (0);
+}
+
+static int
+_citrus_VIQR_wcrtomb_priv(_VIQREncodingInfo * __restrict ei,
+ char * __restrict s, size_t n, wchar_t wc,
+ _VIQRState * __restrict psenc, size_t * __restrict nresult)
+{
+ mnemonic_t *m;
+ const char *p;
+ int ch = 0;
+
+ switch (psenc->chlen) {
+ case 0: case 1:
+ break;
+ default:
+ return (EINVAL);
+ }
+ m = NULL;
+ if ((uint32_t)wc <= 0xFF) {
+ p = mnemonic_rfc1456[wc & 0xFF];
+ if (p != NULL)
+ goto mnemonic_found;
+ if (n-- < 1)
+ goto e2big;
+ ch = (unsigned int)wc;
+ m = ei->mroot;
+ if (psenc->chlen > 0) {
+ m = mnemonic_list_find(&m->child, psenc->ch[0]);
+ if (m == NULL)
+ return (EINVAL);
+ psenc->ch[0] = ESCAPE;
+ }
+ if (mnemonic_list_find(&m->child, ch) == NULL) {
+ psenc->chlen = 0;
+ m = NULL;
+ }
+ psenc->ch[psenc->chlen++] = ch;
+ } else {
+ p = mnemonic_ext_find(wc, &mnemonic_ext[0], mnemonic_ext_size);
+ if (p == NULL) {
+ *nresult = (size_t)-1;
+ return (EILSEQ);
+ } else {
+mnemonic_found:
+ psenc->chlen = 0;
+ while (*p != '\0') {
+ if (n-- < 1)
+ goto e2big;
+ psenc->ch[psenc->chlen++] = *p++;
+ }
+ }
+ }
+ memcpy(s, psenc->ch, psenc->chlen);
+ *nresult = psenc->chlen;
+ if (m == ei->mroot) {
+ psenc->ch[0] = ch;
+ psenc->chlen = 1;
+ } else
+ psenc->chlen = 0;
+
+ return (0);
+
+e2big:
+ *nresult = (size_t)-1;
+ return (E2BIG);
+}
+
+static int
+/* ARGSUSED */
+_citrus_VIQR_put_state_reset(_VIQREncodingInfo * __restrict ei __unused,
+ char * __restrict s __unused, size_t n __unused,
+ _VIQRState * __restrict psenc, size_t * __restrict nresult)
+{
+
+ switch (psenc->chlen) {
+ case 0: case 1:
+ break;
+ default:
+ return (EINVAL);
+ }
+ *nresult = 0;
+ psenc->chlen = 0;
+
+ return (0);
+}
+
+static __inline int
+/*ARGSUSED*/
+_citrus_VIQR_stdenc_wctocs(_VIQREncodingInfo * __restrict ei __unused,
+ _csid_t * __restrict csid, _index_t * __restrict idx, wchar_t wc)
+{
+
+ *csid = 0;
+ *idx = (_index_t)wc;
+
+ return (0);
+}
+
+static __inline int
+/*ARGSUSED*/
+_citrus_VIQR_stdenc_cstowc(_VIQREncodingInfo * __restrict ei __unused,
+ wchar_t * __restrict pwc, _csid_t csid, _index_t idx)
+{
+
+ if (csid != 0)
+ return (EILSEQ);
+ *pwc = (wchar_t)idx;
+
+ return (0);
+}
+
+static void
+_citrus_VIQR_encoding_module_uninit(_VIQREncodingInfo *ei)
+{
+
+ mnemonic_destroy(ei->mroot);
+}
+
+static int
+/*ARGSUSED*/
+_citrus_VIQR_encoding_module_init(_VIQREncodingInfo * __restrict ei,
+ const void * __restrict var __unused, size_t lenvar __unused)
+{
+ const mnemonic_def_t *p;
+ const char *s;
+ size_t i, n;
+ int errnum;
+
+ ei->mb_cur_max = 1;
+ ei->invalid = (wchar_t)-1;
+ ei->mroot = mnemonic_create(NULL, '\0', ei->invalid);
+ if (ei->mroot == NULL)
+ return (ENOMEM);
+ for (i = 0; i < sizeof(mnemonic_rfc1456) / sizeof(const char *); ++i) {
+ s = mnemonic_rfc1456[i];
+ if (s == NULL)
+ continue;
+ n = strlen(s);
+ if (ei->mb_cur_max < n)
+ ei->mb_cur_max = n;
+ errnum = mnemonic_append_child(ei->mroot,
+ s, (wchar_t)i, ei->invalid);
+ if (errnum != 0) {
+ _citrus_VIQR_encoding_module_uninit(ei);
+ return (errnum);
+ }
+ }
+ for (i = 0;; ++i) {
+ p = &mnemonic_ext[i];
+ n = strlen(p->name);
+ if (ei->mb_cur_max < n)
+ ei->mb_cur_max = n;
+ errnum = mnemonic_append_child(ei->mroot,
+ p->name, p->value, ei->invalid);
+ if (errnum != 0) {
+ _citrus_VIQR_encoding_module_uninit(ei);
+ return (errnum);
+ }
+ }
+
+ return (0);
+}
+
+static __inline int
+/*ARGSUSED*/
+_citrus_VIQR_stdenc_get_state_desc_generic(_VIQREncodingInfo * __restrict ei __unused,
+ _VIQRState * __restrict psenc, int * __restrict rstate)
+{
+
+ *rstate = (psenc->chlen == 0) ?
+ _STDENC_SDGEN_INITIAL :
+ _STDENC_SDGEN_INCOMPLETE_CHAR;
+
+ return (0);
+}
+
+/* ----------------------------------------------------------------------
+ * public interface for stdenc
+ */
+
+_CITRUS_STDENC_DECLS(VIQR);
+_CITRUS_STDENC_DEF_OPS(VIQR);
+
+#include "citrus_stdenc_template.h"
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