Pseudo-Sindarin Name Generator

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Pseudo-Sindarin Name Generator sentry1!urban 3/31/83 7:51 PM
This is a somewhat long (300-line) message.  It comprises three
segments, the first of which is the explanation you're
reading.  The second  is a C program which accumulates
statistics on alphabetic triplets from standard input and
produces words on standard output with the same statistical
properties. The third segment is an abbreviated Sindarin
(as in Tolkien Grey-Elven) word-list (it has not yet
assimilated most of the new material from Unfinished Tales
and the Letters). Make this file the standard input for
the supplied program.  If you call the program "trigraph", then

        trigraph 20 < sindarin

will produce a list of 20 Sindarin-like (and occasionally
genuine Sindarin) words on standard output.  If no numeric
count is given, 'trigraph' will produce tables suitable for
use with percentage dice.  The purpose of this material
(which is why it's posted to this newsgroup) is to allow
you to generate reasonably euphonious names for people,
places, weapons, trees, etc, etc in your gaming, without
having to use "real" Elvish words with their
Tolkien-oriented meanings and mythic associations.  A quick
sample of the output (sorted and encolumned)

adaeg        cuand        duil         lhadron      naegilivrist
andorin      dagalroth    gladrial     maerdhrin    nelithrim
annunen      dalad        imlast       merethil     paurannu
arved        dorthiw      ladagnon     moros        thrielad

Let's see... none of these words actually occurs in the
input data.  Some of them (annunen, 'west-water') can be
intelligibly glossed by the Sindarin expert (nelithrim:
'three-ash-people' ?).  Anyway, there's little work
involved, and maybe this stuff can help stimulate your
FRPing imagination a little.
#include <stdio.h>
#include <ctype.h>

int     freq[27][27][27];        /* Counts occurrences of triplets */
                                /* I assume it's initially zero.  If */
                                /* you don't, add an initialization loop*/
long    time ();
int        shortest=4;                /* Default word sizes */
int        longest=12;

main (argc, argv) char **argv;
    char    c,
    int     count;

/*        Usage: trigraph [count [shortest [longest]] */
/*           with no options, outputs its table in    */
/*           percentage-dice form                            */

    if (argc > 1) {
        count = atoi (argv[1]);
        count = 0;
    if (argc > 2)
        shortest = atoi (argv[2]);
    if (argc > 3)
        longest = atoi (argv[3]);

    olderc = oldc = 'z' - 'a' + 1;        /* 26, in the Common Speech */

    while ((c = getchar ()) != (char)EOF) {
        if (isupper(c))
            c = tolower(c);
        if (!isalpha(c))
            c = 'z' + 1;        /* Separator char */
        freq[olderc][oldc][c - 'a']++;
        olderc = oldc;
        oldc = c - 'a';
        if (!isalpha (c))        /* Word break, re-initializes */
            olderc = oldc;
    freq[olderc][oldc][27 - 1]++;
    freq[27 - 1][27 - 1][27 - 1] = 0;
    out_freq (count);

out_freq (count) int    count; {

    int     row[27][27];
    int     i,

    char    outbuf[80],
    int     lastc,
    char    done;

    for (i = 0; i < 27; i++) {
        for (j = 0; j < 27; j++) {
            row[i][j] = 0;
            for (k = 0; k < 27; k++) {
                row[i][j] += freq[i][j][k];
    for (i = 0; i < 27; i++) {
        for (j = 0; j < 27; j++) {

            if (row[i][j]) {
                cum = 0;
                /* Normalize frequencies to chance-in-1000 */
                for (k = 0; k < 27; k++) {
                    freq[i][j][k] = (freq[i][j][k] * 1000 + row[i][j] / 2)
                        / row[i][j];
                    cum += freq[i][j][k];
                    if (!count)
                        outpct (i, j, k, cum);
                if (!count)
                    printf ("--------\n");
    if (!count)
        exit (0);

    i = (int) time ((long *) 0);

    srand (i);
    while (1) {
        obuf = outbuf;
        nextc = lastc = 26;
        do {
            cum = 0;
            done = 0;
            while (!done) {        /* Maybe have to roll again */
                pct = 1 + randint (1000);
                for (i = 0; i < 27; i++) {
                    cum += freq[lastc][nextc][i];
                    if (cum >= pct) {
                        newc = i;
                        done = 1;
            if (newc < 27 - 1)
                *obuf++ = 'a' + newc;
                nextc = newc;
            if ((obuf-outbuf) > longest)
                    newc = 26;
            lastc = nextc;
            nextc = newc;
        } while (nextc != 26);
        *obuf++ = '\0';
        if (strlen (outbuf) >= shortest && strlen (outbuf) <= longest) {
            printf ("%s\n", outbuf);
            if (--count <= 0)
                exit (0);

outpct (i, j, k, cum) int   i,
    if (freq[i][j][k]) {
        printf ("%c", (i == 26 ? '-' : 'a' + i));
        printf ("%c", (j == 26 ? '-' : 'a' + j));
        printf ("%c", (k == 26 ? '-' : 'a' + k));
        printf (" %4d\n", cum);

#ifndef RANDINT
int     randint (max)        /* produce a random int in the range 0 to max-1 */
int    max;
    return (hmul (2 * max, rand ()));

#ifdef vax

int     hmul (a, b)                /* high-order word of a*b (David
                                   Smallberg, UCLA) */
int     a,
    asm ("        emul        4(ap),8(ap),$0,r0");
                                /* r1'r0 <= a*b                 */
    asm ("        movl        r1,r0");/* r0 <=  (a*b).high         */


union {
    unsigned long   ufull;
    struct {
        unsigned short  ulo;
        unsigned short  uhi;
    }       uhalves;                /* Requires PDP-11-style addressing */
} upair;

int     hmul (a, b)
register    upair a,
    register    upair cross1,

    cross1.ufull = a.ulo * b.uhi;
    cross2.ufull = a.uhi * b.ulo;
    total.ufull = a.ulo * b.ulo;
    total.ufull = total.uhi + cross1.ulo + cross2.ulo;
    return (total.uhi + cross1.uhi + cross2.uhi + a.uhi * b.uhi);

#endif vax
#endif RANDINT
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