+++ /dev/null
-/*
-** Copyright 2000-2002 Double Precision, Inc.
-** See COPYING for distribution information.
-**
-** $Id: big5.c,v 1.14 2004/05/23 14:28:24 mrsam Exp $
-*/
-
-#include "big5.h"
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#define BIG5_HKSCS_EXTENSION 1
-
-static const unicode_char * const big5fwdlo[]= {
- NULL,
- NULL,
- NULL,
- NULL,
- NULL,
- NULL,
- NULL,
- big5_88_lo,
- big5_89_lo,
- big5_8a_lo,
- big5_8b_lo,
- big5_8c_lo,
- big5_8d_lo,
- big5_8e_lo,
- big5_8f_lo,
- big5_90_lo,
- big5_91_lo,
- big5_92_lo,
- big5_93_lo,
- big5_94_lo,
- big5_95_lo,
- big5_96_lo,
- big5_97_lo,
- big5_98_lo,
- big5_99_lo,
- big5_9a_lo,
- big5_9b_lo,
- big5_9c_lo,
- big5_9d_lo,
- big5_9e_lo,
- big5_9f_lo,
- big5_a0_lo,
- big5_a1_lo,
- big5_a2_lo,
- big5_a3_lo,
- big5_a4_lo,
- big5_a5_lo,
- big5_a6_lo,
- big5_a7_lo,
- big5_a8_lo,
- big5_a9_lo,
- big5_aa_lo,
- big5_ab_lo,
- big5_ac_lo,
- big5_ad_lo,
- big5_ae_lo,
- big5_af_lo,
- big5_b0_lo,
- big5_b1_lo,
- big5_b2_lo,
- big5_b3_lo,
- big5_b4_lo,
- big5_b5_lo,
- big5_b6_lo,
- big5_b7_lo,
- big5_b8_lo,
- big5_b9_lo,
- big5_ba_lo,
- big5_bb_lo,
- big5_bc_lo,
- big5_bd_lo,
- big5_be_lo,
- big5_bf_lo,
- big5_c0_lo,
- big5_c1_lo,
- big5_c2_lo,
- big5_c3_lo,
- big5_c4_lo,
- big5_c5_lo,
- big5_c6_lo,
- big5_c7_lo,
- big5_c8_lo,
- big5_c9_lo,
- big5_ca_lo,
- big5_cb_lo,
- big5_cc_lo,
- big5_cd_lo,
- big5_ce_lo,
- big5_cf_lo,
- big5_d0_lo,
- big5_d1_lo,
- big5_d2_lo,
- big5_d3_lo,
- big5_d4_lo,
- big5_d5_lo,
- big5_d6_lo,
- big5_d7_lo,
- big5_d8_lo,
- big5_d9_lo,
- big5_da_lo,
- big5_db_lo,
- big5_dc_lo,
- big5_dd_lo,
- big5_de_lo,
- big5_df_lo,
- big5_e0_lo,
- big5_e1_lo,
- big5_e2_lo,
- big5_e3_lo,
- big5_e4_lo,
- big5_e5_lo,
- big5_e6_lo,
- big5_e7_lo,
- big5_e8_lo,
- big5_e9_lo,
- big5_ea_lo,
- big5_eb_lo,
- big5_ec_lo,
- big5_ed_lo,
- big5_ee_lo,
- big5_ef_lo,
- big5_f0_lo,
- big5_f1_lo,
- big5_f2_lo,
- big5_f3_lo,
- big5_f4_lo,
- big5_f5_lo,
- big5_f6_lo,
- big5_f7_lo,
- big5_f8_lo,
- big5_f9_lo,
- big5_fa_lo,
- big5_fb_lo,
- big5_fc_lo,
- big5_fd_lo,
- big5_fe_lo};
-
-static const unicode_char * const big5fwdhi[]= {
- NULL,
- NULL,
- NULL,
- NULL,
- NULL,
- NULL,
- NULL,
- big5_88_hi,
- big5_89_hi,
- big5_8a_hi,
- big5_8b_hi,
- big5_8c_hi,
- big5_8d_hi,
- big5_8e_hi,
- big5_8f_hi,
- big5_90_hi,
- big5_91_hi,
- big5_92_hi,
- big5_93_hi,
- big5_94_hi,
- big5_95_hi,
- big5_96_hi,
- big5_97_hi,
- big5_98_hi,
- big5_99_hi,
- big5_9a_hi,
- big5_9b_hi,
- big5_9c_hi,
- big5_9d_hi,
- big5_9e_hi,
- big5_9f_hi,
- big5_a0_hi,
- big5_a1_hi,
- big5_a2_hi,
- big5_a3_hi,
- big5_a4_hi,
- big5_a5_hi,
- big5_a6_hi,
- big5_a7_hi,
- big5_a8_hi,
- big5_a9_hi,
- big5_aa_hi,
- big5_ab_hi,
- big5_ac_hi,
- big5_ad_hi,
- big5_ae_hi,
- big5_af_hi,
- big5_b0_hi,
- big5_b1_hi,
- big5_b2_hi,
- big5_b3_hi,
- big5_b4_hi,
- big5_b5_hi,
- big5_b6_hi,
- big5_b7_hi,
- big5_b8_hi,
- big5_b9_hi,
- big5_ba_hi,
- big5_bb_hi,
- big5_bc_hi,
- big5_bd_hi,
- big5_be_hi,
- big5_bf_hi,
- big5_c0_hi,
- big5_c1_hi,
- big5_c2_hi,
- big5_c3_hi,
- big5_c4_hi,
- big5_c5_hi,
- big5_c6_hi,
- big5_c7_hi,
- big5_c8_hi,
- big5_c9_hi,
- big5_ca_hi,
- big5_cb_hi,
- big5_cc_hi,
- big5_cd_hi,
- big5_ce_hi,
- big5_cf_hi,
- big5_d0_hi,
- big5_d1_hi,
- big5_d2_hi,
- big5_d3_hi,
- big5_d4_hi,
- big5_d5_hi,
- big5_d6_hi,
- big5_d7_hi,
- big5_d8_hi,
- big5_d9_hi,
- big5_da_hi,
- big5_db_hi,
- big5_dc_hi,
- big5_dd_hi,
- big5_de_hi,
- big5_df_hi,
- big5_e0_hi,
- big5_e1_hi,
- big5_e2_hi,
- big5_e3_hi,
- big5_e4_hi,
- big5_e5_hi,
- big5_e6_hi,
- big5_e7_hi,
- big5_e8_hi,
- big5_e9_hi,
- big5_ea_hi,
- big5_eb_hi,
- big5_ec_hi,
- big5_ed_hi,
- big5_ee_hi,
- big5_ef_hi,
- big5_f0_hi,
- big5_f1_hi,
- big5_f2_hi,
- big5_f3_hi,
- big5_f4_hi,
- big5_f5_hi,
- big5_f6_hi,
- big5_f7_hi,
- big5_f8_hi,
- big5_f9_hi,
- big5_fa_hi,
- big5_fb_hi,
- big5_fc_hi,
- big5_fd_hi,
- big5_fe_hi};
-
-static unicode_char *c2u_doconv(const struct unicode_info *u,
- const char *cp, int *err, int compat)
-{
- size_t i, cnt;
- unicode_char *uc;
-
- if (err)
- *err= -1;
-
- /*
- ** Count the number of potential unicode characters first.
- */
-
- for (i=cnt=0; cp[i]; i++)
- {
- if ((int)(unsigned char)cp[i] < 0x88 ||
- (int)(unsigned char)cp[i] > 0xFE ||
- cp[i+1] == 0)
- {
- ++cnt;
- continue;
- }
-
- ++i;
- ++cnt;
- }
-
- uc=malloc((cnt+1)*sizeof(unicode_char));
- if (!uc)
- return (NULL);
-
- i=cnt=0;
- while (cp[i])
- {
- unsigned int a=(int)(unsigned char)cp[i], b;
-
- /* 2-byte Character */
- if ((unsigned)0x88 <= a && a <= (unsigned)0xFE && cp[i+1])
- {
- unicode_char ucv;
- b=(int)(unsigned char)cp[i+1];
-
- /* ranges extended by HKSCS */
- if (!(compat & BIG5_HKSCS_EXTENSION)
- && (a < (unsigned)0xA1
- || (a == (unsigned)0xC6
- && (unsigned)0xBF <= b && b <= (unsigned)0xD7)))
- ucv = (unicode_char)0xFFFD;
- /* 0xXX40-0xXX7E */
- else if (0x40 <= b && b <= 0x7E
- && big5fwdlo[a-0x81]
- && (ucv=big5fwdlo[a-0x81][b-0x40]))
- ;
- /* 0xXXA1-0xXXFE */
- else if ((unsigned)0xA1 <= b && b <= (unsigned)0xFE
- && big5fwdhi[a-0x81]
- && (ucv=big5fwdhi[a-0x81][b-0xA1]))
- ;
- /* Not found */
- else
- ucv = (unicode_char)0xFFFD;
-
- /* mapped to PUA by HKSCS extension */
- if (!(compat & BIG5_HKSCS_EXTENSION)
- && (unicode_char)0xE000 <= ucv
- && ucv <= (unicode_char)0xF8FF)
- ucv = (unicode_char)0xFFFD;
-
- if (ucv == (unicode_char)0xFFFD && err)
- {
- *err = i;
- free(uc);
- return NULL;
- }
- uc[cnt++] = ucv;
- i += 2;
- }
- /* US-ASCII */
- else if (a < (unsigned)0x80)
- {
- uc[cnt++]=a;
- i += 1;
- }
- /* Not Found */
- else if (err)
- {
- *err=i;
- free(uc);
- return (NULL);
- }
- else
- {
- uc[cnt++] = (unicode_char)0xFFFD;
- i += 1;
- }
- }
- uc[cnt]=0;
-
- return (uc);
-}
-
-static unicode_char *c2u_eten(const struct unicode_info *u,
- const char *cp, int *err)
-{
- return c2u_doconv(u, cp, err, 0);
-}
-
-static unicode_char *c2u_hkscs(const struct unicode_info *u,
- const char *cp, int *err)
-{
- return c2u_doconv(u, cp, err, BIG5_HKSCS_EXTENSION);
-}
-
-static unsigned revlookup(unicode_char c)
-{
- unsigned j;
- unsigned bucket;
- unsigned uc;
-
- bucket=c % big5_revhash_size;
- uc=0;
-
- for (j=big5_revtable_index[ bucket ];
- j < sizeof(big5_revtable_uc)/sizeof(big5_revtable_uc[0]);
- ++j)
- {
- unicode_char uuc=big5_revtable_uc[j];
-
- if (uuc == c)
- return (big5_revtable_octets[j]);
-
- if ((uuc % big5_revhash_size) != bucket)
- break;
- }
- return (0);
-}
-
-static char *u2c_doconv(const struct unicode_info *u,
- const unicode_char *cp, int *err, int compat)
-{
- size_t cnt, i;
- char *s;
-
- if (err)
- *err= -1;
- /*
- ** Figure out the size of the octet string. Unicodes < 0x7f will
- ** map to a single byte, unicodes >= 0x80 will map to two bytes.
- */
-
- for (i=cnt=0; cp[i]; i++)
- {
- if (cp[i] > 0x7f)
- ++cnt;
- ++cnt;
- }
-
- s=malloc(cnt+1);
- if (!s)
- return (NULL);
- cnt=0;
-
- for (i=0; cp[i]; i++)
- {
- unsigned uc;
-
- /* US-ASCII */
- if (cp[i] < (unicode_char)0x0080)
- {
- s[cnt++]= (char)cp[i];
- continue;
- }
- /* PUA by HKSCS */
- if (!(compat & BIG5_HKSCS_EXTENSION)
- && (unicode_char)0xE000 <= cp[i]
- && cp[i] <= (unicode_char)0xF8FF)
- {
- if (err)
- {
- *err=i;
- free(s);
- return (NULL);
- }
- s[cnt++] = '?';
- continue;
- }
-
- uc=revlookup(cp[i]);
-
- if (!uc
- || (!(compat & BIG5_HKSCS_EXTENSION)
- && (uc < (unsigned)0xA140
- || ((unsigned)0xC6BF <= uc && uc <= (unsigned)0xC6D7))))
- {
- if (err)
- {
- *err=i;
- free(s);
- return (NULL);
- }
- s[cnt++] = '?';
- }
- else
- {
- s[cnt++]= (char)(uc >> 8);
- s[cnt++]= (char)(uc & 0x00FF);
- }
- }
- s[cnt]=0;
- return (s);
-}
-
-static char *u2c_eten(const struct unicode_info *u,
- const unicode_char *cp, int *err)
-{
- return u2c_doconv(u, cp, err, 0);
-}
-
-static char *u2c_hkscs(const struct unicode_info *u,
- const unicode_char *cp, int *err)
-{
- return u2c_doconv(u, cp, err, BIG5_HKSCS_EXTENSION);
-}
-
-static char *toupper_func(const struct unicode_info *u,
- const char *cp, int *ip)
-{
- unicode_char *uc=(*u->c2u)(u, cp, ip);
- char *s;
-
- unsigned i;
-
- if (!uc)
- return (NULL);
-
- for (i=0; uc[i]; i++)
- {
- unicode_char c=unicode_uc(uc[i]);
-
- if (revlookup(c))
- uc[i]=c;
- }
-
- s=(*u->u2c)(u, uc, NULL);
- free(uc);
- return (s);
-}
-
-static char *tolower_func(const struct unicode_info *u,
- const char *cp, int *ip)
-{
- unicode_char *uc=(*u->c2u)(u, cp, ip);
- char *s;
-
- unsigned i;
-
- if (!uc)
- return (NULL);
-
- for (i=0; uc[i]; i++)
- {
- unicode_char c=unicode_lc(uc[i]);
-
- if (revlookup(c))
- uc[i]=c;
- }
-
- s=(*u->u2c)(u, uc, NULL);
- free(uc);
- return (s);
-}
-
-static char *totitle_func(const struct unicode_info *u,
- const char *cp, int *ip)
-{
- unicode_char *uc=(*u->c2u)(u, cp, ip);
- char *s;
-
- unsigned i;
-
- if (!uc)
- return (NULL);
-
- for (i=0; uc[i]; i++)
- {
- unicode_char c=unicode_tc(uc[i]);
-
- if (revlookup(c))
- uc[i]=c;
- }
-
- s=(*u->u2c)(u, uc, NULL);
- free(uc);
- return (s);
-}
-
-const struct unicode_info unicode_BIG5_ETEN = {
- "BIG5",
- UNICODE_MB | UNICODE_REPLACEABLE | UNICODE_USASCII |
- UNICODE_HEADER_BASE64 | UNICODE_BODY_BASE64,
- c2u_eten,
- u2c_eten,
- toupper_func,
- tolower_func,
- totitle_func};
-
-const struct unicode_info unicode_BIG5_HKSCS = {
- "BIG5-HKSCS",
- UNICODE_MB | UNICODE_REPLACEABLE | UNICODE_USASCII |
- UNICODE_HEADER_BASE64 | UNICODE_BODY_BASE64,
- c2u_hkscs,
- u2c_hkscs,
- toupper_func,
- tolower_func,
- totitle_func};
-
-#if 0
-
-int main()
-{
- FILE *fp=popen("gunzip -cd <Unihan-3.2.0.txt.gz", "r");
- char buf[4000];
- unicode_char *uc;
- char *s, *p;
- int dummyi;
-
- if (!fp)
- return (0);
-
- while (fgets(buf, sizeof(buf), fp))
- {
- unsigned a, b, c;
- int dummy;
-
- if (sscanf(buf, "U+%4x kBigFive %4x", &b, &a) != 2)
- continue;
- printf("0x%04x 0x%04x: ", a, b);
-
- buf[0]= a / 256;
- buf[1]= a % 256;
- buf[2]=0;
-
- uc=c2u(buf, &dummy);
- if (!uc)
- {
- printf("c2u failure: %d\n", dummy);
- return (1);
- }
- if (uc[0] != b || uc[1])
- {
- printf("c2u failure: got 0x%04x, expected 0x%04x\n",
- (unsigned)uc[0], (unsigned)b);
- return (1);
- }
- s=u2c(uc, &dummy);
- if (s == NULL && uc[0] == 0xfffd)
- {
- free(uc);
- printf("Ok\n");
- continue; /* Unmapped */
- }
- free(uc);
- if (!s)
- {
- printf("u2c failure: %d\n", dummy);
- return (1);
- }
-
- c=0;
- if (!s[0] || !s[1] || s[2] ||
- (c=(int)(unsigned char)s[0] * 256 +
- (unsigned char)s[1]) != a)
- {
- printf("u2c failure: got 0x%04x, expected 0x%04x\n",
- c, a);
- return (1);
- }
-
- p=toupper_func(s, NULL);
- if (!p)
- {
- printf("toupper failure\n");
- return (1);
- }
- if (strcmp(p, s))
- printf("toupper ");
- free(p);
-
- p=tolower_func(s, NULL);
- if (!p)
- {
- printf("tolower failure\n");
- return (1);
- }
- if (strcmp(p, s))
- printf("tolower ");
- free(p);
-
- p=totitle_func(s, NULL);
- if (!p)
- {
- printf("totitle failure\n");
- return (1);
- }
- if (strcmp(p, s))
- printf("totitle ");
- free(p);
-
- free(s);
- printf("ok\n");
- }
- fclose(fp);
-
- buf[0]=0x40;
- buf[1]=0;
- uc=c2u(buf, NULL);
-
- if (!uc)
- {
- printf("us-ascii c2u failure\n");
- return (1);
- }
- s=u2c(uc, NULL);
- free(uc);
- if (!s)
- {
- printf("us-ascii u2c failure\n");
- return (1);
- }
- free(s);
-
- buf[0]=0xA2;
- buf[1]=0x40;
- buf[2]=0;
-
- uc=c2u(buf, NULL);
- if (!uc)
- {
- printf("fallback failed\n");
- return (1);
- }
- printf("fallback: %04x %04x\n", (unsigned)uc[0],
- (unsigned)uc[1]);
-
- s=u2c(uc, NULL);
- free(uc);
-
- if (!s)
- {
- printf("fallback-reverse failed\n");
- return (1);
- }
- printf("fallback: %02x %02x\n", (int)(unsigned char)s[0],
- (int)(unsigned char)s[1]);
- free(s);
-
- buf[0]=0xA2;
- buf[1]=0x40;
- buf[2]=0;
-
- uc=c2u(buf, &dummyi);
-
- if (uc)
- {
- printf("abort failed\n");
- return (1);
- }
-
- printf("aborted at index %d\n", dummyi);
-
- {
- static unicode_char testing[]={0x0040, 0x1000, 0};
-
- uc=testing;
-
- s=u2c(uc, NULL);
-
- if (!s)
- {
- printf("abort-fallback failed\n");
- return (1);
- }
- printf("abort-fallback: %02x %02x\n", (int)(unsigned char)s[0],
- (int)(unsigned char)s[1]);
- free(s);
-
- uc=testing;
- }
-
- s=u2c(uc, &dummyi);
-
- if (s)
- {
- printf("abort-abort failed\n");
- return (1);
- }
-
- printf("abort-aborted: index %d\n", dummyi);
- return (0);
-}
-#endif
HCoop / hcoop / debian / courier-authlib.git / blobdiff