#include        <u.h>
#include        <libc.h>
#include        <bio.h>
#include        "cyrillic.h"
#include        "misc.h"
#include        "ms.h"
#include        "8859.h"
#include        "big5.h"
#include        "gb.h"
#include        "hdr.h"
#include        "conv.h"

void usage(void);
void list(void);
int squawk = 1;
int clean = 0;
int verbose = 0;
long ninput, noutput, nrunes, nerrors;
char *file = "stdin";
char *argv0;
Rune runes[N];
char obuf[UTFmax*N];    /* maximum bloat from N runes */
long tab[NRUNE];

void intable(int, long *, struct convert *);
void unicode_in(int, long *, struct convert *);
void unicode_out(Rune *, int, long *);

void
main(int argc, char **argv)
{
       char *from = "utf";
       char *to = "utf";
       int fd;
       int listem = 0;
       struct convert *t, *f;

       ARGBEGIN {
       case 'c':
               clean = 1;
               break;
       case 'f':
               from = EARGF(usage());
               break;
       case 'l':
               listem = 1;
               break;
       case 's':
               squawk = 0;
               break;
       case 't':
               to = EARGF(usage());
               break;
       case 'v':
               verbose = 1;
               break;
       default:
               usage();
               break;
       } ARGEND

       if(verbose)
               squawk = 1;
       if(listem){
               list();
               exits(nil);
       }
       if(!from || !to)
               usage();
       f = conv(from, 1);
       t = conv(to, 0);
#define PROC    {if(f->flags&Table)\
                       intable(fd, (long *)f->data, t);\
               else\
                       ((Infn)(f->fn))(fd, (long *)0, t);}
       if(*argv){
               while(*argv){
                       file = *argv;
                       if((fd = open(*argv, OREAD)) < 0){
                               sysfatal("%s: %r", *argv);
                       }
                       PROC
                       close(fd);
                       argv++;
               }
       } else {
               fd = 0;
               PROC
       }
       if(verbose)
               warn("%ld input bytes, %ld runes, %ld output bytes (%ld errors)",
                       ninput, nrunes, noutput, nerrors);
       exits((nerrors && squawk)? "conversion error":nil);
}

void
usage(void)
{
       fprint(2, "usage: %s [-slcv] [-f ics] [-t ocs] [file ...]\n", argv0);
       verbose = 1;
       list();
       exits("usage");
}

void
list(void)
{
       struct convert *c;
       char ch = verbose?'\t':' ';

       if(verbose)
               fprint(2, "character sets:\n");
       else
               fprint(2, "cs:");
       for(c = convert; c->name; c++){
               if((c->flags&From) && c[1].name && (strcmp(c[1].name, c->name) == 0)){
                       fprint(2, "%c%s", ch, c->name);
                       c++;
               } else if(c->flags&Table)
                       fprint(2, "%c%s", ch, c->name);
               else if(c->flags&From)
                       fprint(2, "%c%s(from)", ch, c->name);
               else
                       fprint(2, "%c%s(to)", ch, c->name);
               if(verbose)
                       fprint(2, "\t%s\n", c->chatter);
       }
       if(!verbose)
               fprint(2, "\n");
}

void
warn(char *fmt, ...)
{
       va_list arg;
       char buf[1024]; /* arbitrary */
       int n;

       if((n = snprint(buf, sizeof(buf), "%s: ", argv0)) < 0)
               sysfatal("snprint: %r");
       va_start(arg, fmt);
       vseprint(buf+n, buf+sizeof(buf), fmt, arg);
       va_end(arg);

       fprint(2, "%s\n", buf);
}

char*
aliasname(char *name)
{
       static struct {
               char *alias;
               char *name;
       } tab[] = {
#include "alias.h"
               /* not generated by the script */
               "utf8", "utf",
               "euc_jp", "jis",
               "euc_kr", "euc-k",
               "windows-874", "tis",
       };
       int i;
       for(i=0; i<nelem(tab); i++)
               if(cistrcmp(tab[i].alias, name) == 0)
                       return tab[i].name;
       return name;
}

struct convert *
conv(char *name, int from)
{
       struct convert *c;

       name = aliasname(name);
       for(c = convert; c->name; c++){
               if(cistrcmp(c->name, name) != 0)
                       continue;
               if(c->flags&Table)
                       return(c);
               if(((c->flags&From) == 0) == (from == 0))
                       return(c);
       }
       sysfatal("charset `%s' unknown", name);
       return(0);      /* just shut the compiler up */
}

static int
cread(int fd, void *buf, int len, int mod)
{
       char *off = buf;

       len -= (len % mod);
Again:
       len = read(fd, off, len);
       if(len <= 0)
               return len;
       off += len;
       len = off - (char*)buf;
       if((len % mod) != 0){
               len = mod - (len % mod);
               goto Again;
       }
       return len;
}

void
unicode_in_be(int fd, long *, struct convert *out)
{
       uchar buf[2*N], *p, *e;
       Rune *r, r2;
       int n;

       r2 = 0;
       while((n = cread(fd, (char*)buf, 2*N, 2)) > 0){
               ninput += n;
               p = buf;
               e = buf + n;
               r = runes;
               while(p < e){
                       *r = *p++ << 8;
                       *r |= *p++;
                       if(fixsurrogate(r, r2)){
                               r2 = *r;
                               continue;
                       }
                       r2 = 0;
                       r++;
               }
               if(r > runes){
                       OUT(out, runes, r-runes);
               }
       }
       OUT(out, runes, 0);
}

void
unicode_in_le(int fd, long *, struct convert *out)
{
       uchar buf[2*N], *p, *e;
       Rune *r, r2;
       int n;

       r2 = 0;
       while((n = cread(fd, (char*)buf, 2*N, 2)) > 0){
               ninput += n;
               p = buf;
               e = buf + n;
               r = runes;
               while(p < e){
                       *r = *p++;
                       *r |= *p++ << 8;
                       if(fixsurrogate(r, r2)){
                               r2 = *r;
                               continue;
                       }
                       r2 = 0;
                       r++;
               }
               if(r > runes){
                       OUT(out, runes, r-runes);
               }
       }
       OUT(out, runes, 0);
}

void
unicode_in(int fd, long *notused, struct convert *out)
{
       uchar bom[2];
       Rune r;

       if(cread(fd, (char *)bom, 2, 2) != 2)
               return;
       ninput += 2;
       r = bom[0];
       r |= bom[1]<<8;
       switch(r)
       {
       default:
               OUT(out, &r, 1);
       case 0xFEFF:
               unicode_in_le(fd, notused, out);
               break;
       case 0xFFFE:
               unicode_in_be(fd, notused, out);
               break;
       }
}

void
unicode_out_be(Rune *base, int n, long *)
{
       int i;
       uchar *p;
       unsigned long r;

       p = (uchar*)base;
       for(i=0; i<n; i++){
               r = base[i];
               if(r > 0xFFFF){
                       r -= 0x10000;
                       *p++ = ((r>>18)&3) + 0xD8;
                       *p++ = r>>10;
                       *p++ = ((r>>8)&3) + 0xDC;
                       *p++ = r;
               } else {
                       *p++ = r>>8;
                       *p++ = r;
               }
       }
       nrunes += n;
       n = p - (uchar*)base;
       noutput += n;
       if(n > 0)
               write(1, base, n);
}

void
unicode_out_le(Rune *base, int n, long *)
{
       int i;
       uchar *p;
       unsigned long r;

       p = (uchar*)base;
       for(i=0; i<n; i++){
               r = base[i];
               if(r > 0xFFFF){
                       r -= 0x10000;
                       *p++ = r>>10;
                       *p++ = ((r>>18)&3) + 0xD8;
                       *p++ = r;
                       *p++ = ((r>>8)&3) + 0xDC;
               } else {
                       *p++ = r;
                       *p++ = r>>8;
               }
       }
       nrunes += n;
       n = p - (uchar*)base;
       noutput += n;
       if(n > 0)
               write(1, (char *)base, n);
}

void
unicode_out(Rune *base, int n, long *notused)
{
       static Rune first = 0xFEFF;

       if(first){
               unicode_out_le(&first, 1, notused);
               first = 0;
       }
       unicode_out_le(base, n, notused);
}

void
intable(int fd, long *table, struct convert *out)
{
       uchar buf[N];
       uchar *p, *e;
       Rune *r;
       int n;
       long c;

       while((n = read(fd, (char *)buf, N)) > 0){
               ninput += n;
               r = runes;
               for(p = buf, e = buf+n; p < e; p++){
                       c = table[*p];
                       if(c < 0){
                               if(squawk)
                                       warn("bad char 0x%x near byte %zd in %s", *p, ninput+(p-e), file);
                               nerrors++;
                               if(clean)
                                       continue;
                               c = BADMAP;
                       }
                       *r++ = c;
               }
               OUT(out, runes, r-runes);
       }
       OUT(out, runes, 0);
       if(n < 0)
               sysfatal("input read: %r");
}

void
outtable(Rune *base, int n, long *map)
{
       long c;
       char *p;
       int i;

       nrunes += n;
       for(i = 0; i < NRUNE; i++)
               tab[i] = -1;
       for(i = 0; i < 256; i++)
               if(map[i] >= 0)
                       tab[map[i]] = i;
       for(i = 0, p = obuf; i < n; i++){
               c = base[i];
               if(c < NRUNE)
                       c = tab[c];
               else
                       c = -1;
               if(c < 0){
                       if(squawk)
                               warn("rune 0x%x not in output cs", base[i]);
                       nerrors++;
                       if(clean)
                               continue;
                       c = BADMAP;
               }
               *p++ = c;
       }
       noutput += p-obuf;
       if(p > obuf)
               write(1, obuf, p-obuf);
}

int
fixsurrogate(Rune *rp, Rune r2)
{
       Rune r1;

       r1 = *rp;
       if(r1 >= 0xD800 && r1 <= 0xDBFF){
               if(r2 >= 0xDC00 && r2 <= 0xDFFF){
                       *rp = 0x10000 + (((r1 - 0xD800)<<10) | (r2 - 0xDC00));
                       return 0;
               }
               return 1;
       } else
       if(r1 >= 0xDC00 && r1 <= 0xDFFF){
               if(r2 >= 0xD800 && r2 <= 0xDBFF){
                       *rp = 0x10000 + (((r2 - 0xD800)<<10) | (r1 - 0xDC00));
                       return 0;
               }
               return 1;
       }
       return 0;
}

long tabascii[256] =
{
0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0a,0x0b,0x0c,0x0d,0x0e,0x0f,
0x10,0x11,0x12,0x13,0x14,0x15,0x16,0x17,0x18,0x19,0x1a,0x1b,0x1c,0x1d,0x1e,0x1f,
0x20,0x21,0x22,0x23,0x24,0x25,0x26,0x27,0x28,0x29,0x2a,0x2b,0x2c,0x2d,0x2e,0x2f,
0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39,0x3a,0x3b,0x3c,0x3d,0x3e,0x3f,
0x40,0x41,0x42,0x43,0x44,0x45,0x46,0x47,0x48,0x49,0x4a,0x4b,0x4c,0x4d,0x4e,0x4f,
0x50,0x51,0x52,0x53,0x54,0x55,0x56,0x57,0x58,0x59,0x5a,0x5b,0x5c,0x5d,0x5e,0x5f,
0x60,0x61,0x62,0x63,0x64,0x65,0x66,0x67,0x68,0x69,0x6a,0x6b,0x6c,0x6d,0x6e,0x6f,
0x70,0x71,0x72,0x73,0x74,0x75,0x76,0x77,0x78,0x79,0x7a,0x7b,0x7c,0x7d,0x7e,0x7f,
 -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,
 -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,
 -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,
 -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,
 -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,
 -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,
 -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,
 -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,
};

long tabmsdos[256] =    /* from [email protected] (Jeroen Hellingman) */
{
0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0a,0x0b,0x0c,0x0d,0x0e,0x0f,
0x10,0x11,0x12,0x13,0x14,0x15,0x16,0x17,0x18,0x19,0x1a,0x1b,0x1c,0x1d,0x1e,0x1f,
0x20,0x21,0x22,0x23,0x24,0x25,0x26,0x27,0x28,0x29,0x2a,0x2b,0x2c,0x2d,0x2e,0x2f,
0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39,0x3a,0x3b,0x3c,0x3d,0x3e,0x3f,
0x40,0x41,0x42,0x43,0x44,0x45,0x46,0x47,0x48,0x49,0x4a,0x4b,0x4c,0x4d,0x4e,0x4f,
0x50,0x51,0x52,0x53,0x54,0x55,0x56,0x57,0x58,0x59,0x5a,0x5b,0x5c,0x5d,0x5e,0x5f,
0x60,0x61,0x62,0x63,0x64,0x65,0x66,0x67,0x68,0x69,0x6a,0x6b,0x6c,0x6d,0x6e,0x6f,
0x70,0x71,0x72,0x73,0x74,0x75,0x76,0x77,0x78,0x79,0x7a,0x7b,0x7c,0x7d,0x7e,0x7f,
0x00c7, 0x00fc, 0x00e9, 0x00e2, 0x00e4, 0x00e0, 0x00e5, 0x00e7, /* latin */
0x00ea, 0x00eb, 0x00e8, 0x00ef, 0x00ee, 0x00ec, 0x00c4, 0x00c5,
0x00c9, 0x00e6, 0x00c6, 0x00f4, 0x00f6, 0x00f2, 0x00fb, 0x00f9,
0x00ff, 0x00d6, 0x00dc, 0x00a2, 0x00a3, 0x00a5, 0x20a7, 0x0192,
0x00e1, 0x00ed, 0x00f3, 0x00fa, 0x00f1, 0x00d1, 0x00aa, 0x00ba,
0x00bf, 0x2310, 0x00ac, 0x00bd, 0x00bc, 0x00a1, 0x00ab, 0x00bb,
0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x2561, 0x2562, 0x2556, /* forms */
0x2555, 0x2563, 0x2551, 0x2557, 0x255d, 0x255c, 0x255b, 0x2510,
0x2514, 0x2534, 0x252c, 0x251c, 0x2500, 0x253c, 0x255e, 0x255f,
0x255a, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256c, 0x2567,
0x2568, 0x2564, 0x2565, 0x2559, 0x2558, 0x2552, 0x2553, 0x256b,
0x256a, 0x2518, 0x250c, 0x2588, 0x2584, 0x258c, 0x2590, 0x2580,
0x03b1, 0x00df, 0x0393, 0x03c0, 0x03a3, 0x03c3, 0x00b5, 0x03c4, /* greek */
0x03a6, 0x0398, 0x2126, 0x03b4, 0x221e, 0x2205, 0x2208, 0x2229,
0x2261, 0x00b1, 0x2265, 0x2264, 0x2320, 0x2321, 0x00f7, 0x2248, /* math */
0x00b0, 0x2022, 0x00b7, 0x221a, 0x207f, 0x00b2, 0x220e, 0x00a0,
};
long tabmsdos2[256] =   /* from [email protected] (Jeroen Hellingman) */
{
0x0000, 0x263a, 0x263b, 0x2665, 0x2666, 0x2663, 0x2660, 0x2022,
0x25d8, 0x25cb, 0x25d9, 0x2642, 0x2640, 0x266a, 0x266b, 0x263c,
0x25b6, 0x25c0, 0x2195, 0x203c, 0x00b6, 0x00a7, 0x2043, 0x21a8,
0x2191, 0x2193, 0x2192, 0x2190, 0x2319, 0x2194, 0x25b2, 0x25bc,
0x20,0x21,0x22,0x23,0x24,0x25,0x26,0x27,0x28,0x29,0x2a,0x2b,0x2c,0x2d,0x2e,0x2f,
0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39,0x3a,0x3b,0x3c,0x3d,0x3e,0x3f,
0x40,0x41,0x42,0x43,0x44,0x45,0x46,0x47,0x48,0x49,0x4a,0x4b,0x4c,0x4d,0x4e,0x4f,
0x50,0x51,0x52,0x53,0x54,0x55,0x56,0x57,0x58,0x59,0x5a,0x5b,0x5c,0x5d,0x5e,0x5f,
0x60,0x61,0x62,0x63,0x64,0x65,0x66,0x67,0x68,0x69,0x6a,0x6b,0x6c,0x6d,0x6e,0x6f,
0x70,0x71,0x72,0x73,0x74,0x75,0x76,0x77,0x78,0x79,0x7a,0x7b,0x7c,0x7d,0x7e,0x7f,
0x00c7, 0x00fc, 0x00e9, 0x00e2, 0x00e4, 0x00e0, 0x00e5, 0x00e7, /* latin */
0x00ea, 0x00eb, 0x00e8, 0x00ef, 0x00ee, 0x00ec, 0x00c4, 0x00c5,
0x00c9, 0x00e6, 0x00c6, 0x00f4, 0x00f6, 0x00f2, 0x00fb, 0x00f9,
0x00ff, 0x00d6, 0x00dc, 0x00a2, 0x00a3, 0x00a5, 0x20a7, 0x0192,
0x00e1, 0x00ed, 0x00f3, 0x00fa, 0x00f1, 0x00d1, 0x00aa, 0x00ba,
0x00bf, 0x2310, 0x00ac, 0x00bd, 0x00bc, 0x00a1, 0x00ab, 0x00bb,
0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x2561, 0x2562, 0x2556, /* forms */
0x2555, 0x2563, 0x2551, 0x2557, 0x255d, 0x255c, 0x255b, 0x2510,
0x2514, 0x2534, 0x252c, 0x251c, 0x2500, 0x253c, 0x255e, 0x255f,
0x255a, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256c, 0x2567,
0x2568, 0x2564, 0x2565, 0x2559, 0x2558, 0x2552, 0x2553, 0x256b,
0x256a, 0x2518, 0x250c, 0x2588, 0x2584, 0x258c, 0x2590, 0x2580,
0x03b1, 0x00df, 0x0393, 0x03c0, 0x03a3, 0x03c3, 0x00b5, 0x03c4, /* greek */
0x03a6, 0x0398, 0x2126, 0x03b4, 0x221e, 0x2205, 0x2208, 0x2229,
0x2261, 0x00b1, 0x2265, 0x2264, 0x2320, 0x2321, 0x00f7, 0x2248, /* math */
0x00b0, 0x2022, 0x00b7, 0x221a, 0x207f, 0x00b2, 0x220e, 0x00a0,
};
struct convert convert[] =
{       /* if two entries have the same name, put the from one first */
       { "8859-1", "Latin-1 (Western and Northern Europe including Italian)", Table, (void *)tab8859_1 },
       { "8859-2", "Latin-2 (Eastern Europe except Turkey and the Baltic countries)", Table, (void *)tab8859_2 },
       { "8859-3", "Latin-3 (Mediterranean, South Africa, Esperanto)", Table, (void *)tab8859_3 },
       { "8859-4", "Latin-4 (Scandinavia and the Baltic countries; obsolete)", Table, (void *)tab8859_4 },
       { "8859-5", "Part 5 (Cyrillic)", Table, (void *)tab8859_5 },
       { "8859-6", "Part 6 (Arabic)", Table, (void *)tab8859_6 },
       { "8859-7", "Part 7 (Greek)", Table, (void *)tab8859_7 },
       { "8859-8", "Part 8 (Hebrew)", Table, (void *)tab8859_8 },
       { "8859-9", "Latin-5 (Turkey, Western Europe except Icelandic and Faroese)", Table, (void *)tab8859_9 },
       { "8859-10", "Latin-6 (Northern Europe)", Table, (void *)tab8859_10 },
       { "8859-15", "Latin-9 (Western Europe)", Table, (void *)tab8859_15 },
       { "ascii", "7-bit ASCII", Table, (void *)tabascii },
       { "atari", "ATARI-ST character set", Table, (void *)tabatari },
       { "av", "Alternativnyj Variant", Table, (void *)tabav },
       { "big5", "Big 5 (HKU)", From|Func, 0, (Fnptr)big5_in },
       { "big5", "Big 5 (HKU)", Func, 0, (Fnptr)big5_out },
       { "ebcdic", "EBCDIC", Table, (void *)tabebcdic },       /* 6f is recommended bad map */
       { "euc-k", "Korean EUC: ASCII+KS C 5601 1987", From|Func, 0, (Fnptr)uksc_in },
       { "euc-k", "Korean EUC: ASCII+KS C 5601 1987", Func, 0, (Fnptr)uksc_out },
       { "gb2312", "GB2312-80 (Chinese)", From|Func, 0, (Fnptr)gb_in },
       { "gb2312", "GB2312-80 (Chinese)", Func, 0, (Fnptr)gb_out },
       { "gbk", "GBK (Chinese)", From|Func, 0, (Fnptr)gbk_in },
       { "gbk", "GBK (Chinese)", Func, 0, (Fnptr)gbk_out },
       { "html", "HTML", From|Func, 0, (Fnptr)html_in },
       { "html", "HTML", Func, 0, (Fnptr)html_out },
       { "ibm437", "IBM Code Page 437 (US)", Table, (void*)tabcp437 },
       { "ibm720", "IBM Code Page 720 (Arabic)", Table, (void*)tabcp720 },
       { "ibm737", "IBM Code Page 737 (Greek)", Table, (void*)tabcp737 },
       { "ibm775", "IBM Code Page 775 (Baltic)", Table, (void*)tabcp775 },
       { "ibm850", "IBM Code Page 850 (Multilingual Latin I)", Table, (void*)tabcp850 },
       { "ibm852", "IBM Code Page 852 (Latin II)", Table, (void*)tabcp852 },
       { "ibm855", "IBM Code Page 855 (Cyrillic)", Table, (void*)tabcp855 },
       { "ibm857", "IBM Code Page 857 (Turkish)", Table, (void*)tabcp857 },
       { "ibm858", "IBM Code Page 858 (Multilingual Latin I+Euro)", Table, (void*)tabcp858 },
       { "ibm862", "IBM Code Page 862 (Hebrew)", Table, (void*)tabcp862 },
       { "ibm866", "IBM Code Page 866 (Russian)", Table, (void*)tabcp866 },
       { "ibm874", "IBM Code Page 874 (Thai)", Table, (void*)tabcp874 },
       { "iso-2022-jp", "alias for jis-kanji (MIME)", From|Func, 0, (Fnptr)jisjis_in },
       { "iso-2022-jp", "alias for jis-kanji (MIME)", Func, 0, (Fnptr)jisjis_out },
       { "iso-8859-1", "alias for 8859-1 (MIME)", Table, (void *)tab8859_1 },
       { "iso-8859-2", "alias for 8859-2 (MIME)", Table, (void *)tab8859_2 },
       { "iso-8859-3", "alias for 8859-3 (MIME)", Table, (void *)tab8859_3 },
       { "iso-8859-4", "alias for 8859-4 (MIME)", Table, (void *)tab8859_4 },
       { "iso-8859-5", "alias for 8859-5 (MIME)", Table, (void *)tab8859_5 },
       { "iso-8859-6", "alias for 8859-6 (MIME)", Table, (void *)tab8859_6 },
       { "iso-8859-7", "alias for 8859-7 (MIME)", Table, (void *)tab8859_7 },
       { "iso-8859-8", "alias for 8859-8 (MIME)", Table, (void *)tab8859_8 },
       { "iso-8859-9", "alias for 8859-9 (MIME)", Table, (void *)tab8859_9 },
       { "iso-8859-10", "alias for 8859-10 (MIME)", Table, (void *)tab8859_10 },
       { "iso-8859-15", "alias for 8859-15 (MIME)", Table, (void *)tab8859_15 },
       { "jis", "guesses at the JIS encoding", From|Func, 0, (Fnptr)jis_in },
       { "jis-kanji", "ISO 2022-JP (Japanese)", From|Func, 0, (Fnptr)jisjis_in },
       { "jis-kanji", "ISO 2022-JP (Japanese)", Func, 0, (Fnptr)jisjis_out },
       { "koi8", "KOI-8 (GOST 19769-74)", Table, (void *)tabkoi8 },
       { "koi8-r", "alias for koi8 (MIME)", Table, (void *)tabkoi8 },
       { "latin1", "alias for 8859-1", Table, (void *)tab8859_1 },
       { "macrom", "Macintosh Standard Roman character set", Table, (void *)tabmacroman },
       { "microsoft", "alias for windows1252", Table, (void *)tabcp1252 },
       { "ms-kanji", "Microsoft, or Shift-JIS", From|Func, 0, (Fnptr)msjis_in },
       { "ms-kanji", "Microsoft, or Shift-JIS", Func, 0, (Fnptr)msjis_out },
       { "msdos", "IBM PC (alias for ibm437)", Table, (void *)tabcp437 },
       { "msdos2", "IBM PC (ibm437 with graphics in C0)", Table, (void *)tabmsdos2 },
       { "next", "NEXTSTEP character set", Table, (void *)tabnextstep },
       { "ov", "Osnovnoj Variant", Table, (void *)tabov },
       { "ps2", "IBM PS/2: (alias for ibm850)", Table, (void *)tabcp850 },
       { "sf1", "ISO-646: Finnish/Swedish SF-1 variant", Table, (void *)tabsf1 },
       { "sf2", "ISO-646: Finnish/Swedish SF-2 variant (recommended)", Table, (void *)tabsf2 },
       { "tis-620", "Thai+ASCII (TIS 620-1986)", Table, (void *)tabtis620 },
       { "tune", "TUNE (Tamil)", From|Func, 0, (Fnptr)tune_in },
       { "tune", "TUNE (Tamil)", Func, 0, (Fnptr)tune_out },
       { "ucode", "Russian U-code", Table, (void *)tabucode },
       { "ujis", "EUC-JX: JIS 0208", From|Func, 0, (Fnptr)ujis_in },
       { "ujis", "EUC-JX: JIS 0208", Func, 0, (Fnptr)ujis_out },
       { "unicode", "Unicode 1.1", From|Func, 0, (Fnptr)unicode_in },
       { "unicode", "Unicode 1.1", Func, 0, (Fnptr)unicode_out },
       { "unicode-be", "Unicode 1.1 big-endian", From|Func, 0, (Fnptr)unicode_in_be },
       { "unicode-be", "Unicode 1.1 big-endian", Func, 0, (Fnptr)unicode_out_be },
       { "unicode-le", "Unicode 1.1 little-endian", From|Func, 0, (Fnptr)unicode_in_le },
       { "unicode-le", "Unicode 1.1 little-endian", Func, 0, (Fnptr)unicode_out_le },
       { "us-ascii", "alias for ascii (MIME)", Table, (void *)tabascii },
       { "utf", "FSS-UTF a.k.a. UTF-8", From|Func, 0, (Fnptr)utf_in },
       { "utf", "FSS-UTF a.k.a. UTF-8", Func, 0, (Fnptr)utf_out },
       { "utf1", "UTF-1 (ISO 10646 Annex A)", From|Func, 0, (Fnptr)isoutf_in },
       { "utf1", "UTF-1 (ISO 10646 Annex A)", Func, 0, (Fnptr)isoutf_out },
       { "utf-8", "alias for utf (MIME)", From|Func, 0, (Fnptr)utf_in },
       { "utf-8", "alias for utf (MIME)", Func, 0, (Fnptr)utf_out },
       { "utf-16", "alias for unicode (MIME)", From|Func, 0, (Fnptr)unicode_in },
       { "utf-16", "alias for unicode (MIME)", Func, 0, (Fnptr)unicode_out },
       { "utf-16be", "alias for unicode-be (MIME)", From|Func, 0, (Fnptr)unicode_in_be },
       { "utf-16be", "alias for unicode-be (MIME)", Func, 0, (Fnptr)unicode_out_be },
       { "utf-16le", "alias for unicode-le (MIME)", From|Func, 0, (Fnptr)unicode_in_le },
       { "utf-16le", "alias for unicode-le (MIME)", Func, 0, (Fnptr)unicode_out_le },
       { "viet1", "Vietnamese VSCII-1 (1993)", Table, (void *)tabviet1 },
       { "viet2", "Vietnamese VSCII-2 (1993)", Table, (void *)tabviet2 },
       { "vscii", "Vietnamese VISCII 1.1 (1992)", Table, (void *)tabviscii },
       { "windows-1250", "Windows Code Page 1250 (Central Europe)", Table, (void *)tabcp1250 },
       { "windows-1251", "Windows Code Page 1251 (Cyrillic)", Table, (void *)tabcp1251 },
       { "windows-1252", "Windows Code Page 1252 (Latin I)", Table, (void *)tabcp1252 },
       { "windows-1253", "Windows Code Page 1253 (Greek)", Table, (void *)tabcp1253 },
       { "windows-1254", "Windows Code Page 1254 (Turkish)", Table, (void *)tabcp1254 },
       { "windows-1255", "Windows Code Page 1255 (Hebrew)", Table, (void *)tabcp1255 },
       { "windows-1256", "Windows Code Page 1256 (Arabic)", Table, (void *)tabcp1256 },
       { "windows-1257", "Windows Code Page 1257 (Baltic)", Table, (void *)tabcp1257 },
       { "windows-1258", "Windows Code Page 1258 (Vietnam)", Table, (void *)tabcp1258 },
       { 0 },
};