/* * Copyright (c) 1988, 1993, 1994 * The Regents of the University of California. 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. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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. * * @(#) Copyright (c) 1988, 1993, 1994 The Regents of the University of California. All rights reserved. * @(#)number.c 8.3 (Berkeley) 5/4/95 * $FreeBSD: src/games/number/number.c,v 1.12 1999/12/12 03:22:35 billf Exp $ * $DragonFly: src/games/number/number.c,v 1.4 2005/04/25 16:10:24 liamfoy Exp $ */ #include #include #include #include #include #include #include #define MAXNUM 65 /* Biggest number we handle. */ static const char *name1[] = { "", "one", "two", "three", "four", "five", "six", "seven", "eight", "nine", "ten", "eleven", "twelve", "thirteen", "fourteen", "fifteen", "sixteen", "seventeen", "eighteen", "nineteen", }, *name2[] = { "", "ten", "twenty", "thirty", "forty", "fifty", "sixty", "seventy", "eighty", "ninety", }, *name3[] = { "hundred", "thousand", "million", "billion", "trillion", "quadrillion", "quintillion", "sextillion", "septillion", "octillion", "nonillion", "decillion", "undecillion", "duodecillion", "tredecillion", "quattuordecillion", "quindecillion", "sexdecillion", "septendecillion", "octodecillion", "novemdecillion", "vigintillion", }; void convert (char *); int number (char *, int); void pfract (int); void toobig (void); int unit (int, char *); void usage (void); int lflag; int main(int argc, char **argv) { int ch, first; char line[256]; lflag = 0; while ((ch = getopt(argc, argv, "l")) != -1) switch (ch) { case 'l': lflag = 1; break; case '?': default: usage(); } argc -= optind; argv += optind; if (*argv == NULL) for (first = 1; fgets(line, sizeof(line), stdin) != NULL; first = 0) { if (strchr(line, '\n') == NULL) errx(1, "line too long."); if (!first) (void)printf("...\n"); convert(line); } else for (first = 1; *argv != NULL; first = 0, ++argv) { if (!first) (void)printf("...\n"); convert(*argv); } exit(0); } void convert(char *line) { int flen, len, rval; char *p, *fraction; flen = NULL; fraction = NULL; for (p = line; *p != '\0' && *p != '\n'; ++p) { if (isblank(*p)) { if (p == line) { ++line; continue; } goto badnum; } if (isdigit(*p)) continue; switch (*p) { case '.': if (fraction != NULL) goto badnum; fraction = p + 1; *p = '\0'; break; case '-': if (p == line) break; /* FALLTHROUGH */ default: badnum: errx(1, "illegal number: %s", line); break; } } *p = '\0'; if ((len = strlen(line)) > MAXNUM || (fraction != NULL && ((flen = strlen(fraction)) > MAXNUM))) errx(1, "number too large, max %d digits.", MAXNUM); if (*line == '-') { (void)printf("minus%s", lflag ? " " : "\n"); ++line; --len; } rval = len > 0 ? unit(len, line) : 0; if (fraction != NULL && flen != 0) for (p = fraction; *p != '\0'; ++p) if (*p != '0') { if (rval) (void)printf("%sand%s", lflag ? " " : "", lflag ? " " : "\n"); if (unit(flen, fraction)) { if (lflag) (void)printf(" "); pfract(flen); rval = 1; } break; } if (!rval) (void)printf("zero%s", lflag ? "" : ".\n"); if (lflag) (void)printf("\n"); } int unit(int len, char *p) { int off, rval; rval = 0; if (len > 3) { if (len % 3) { off = len % 3; len -= off; if (number(p, off)) { rval = 1; (void)printf(" %s%s", name3[len / 3], lflag ? " " : ".\n"); } p += off; } for (; len > 3; p += 3) { len -= 3; if (number(p, 3)) { rval = 1; (void)printf(" %s%s", name3[len / 3], lflag ? " " : ".\n"); } } } if (number(p, len)) { if (!lflag) (void)printf(".\n"); rval = 1; } return (rval); } int number(char *p, int len) { int val, rval; rval = 0; switch (len) { case 3: if (*p != '0') { rval = 1; (void)printf("%s hundred", name1[*p - '0']); } ++p; /* FALLTHROUGH */ case 2: val = (p[1] - '0') + (p[0] - '0') * 10; if (val) { if (rval) (void)printf(" "); if (val < 20) (void)printf("%s", name1[val]); else { (void)printf("%s", name2[val / 10]); if (val % 10) (void)printf("-%s", name1[val % 10]); } rval = 1; } break; case 1: if (*p != '0') { rval = 1; (void)printf("%s", name1[*p - '0']); } } return (rval); } void pfract(int len) { static const char *pref[] = { "", "ten-", "hundred-" }; switch(len) { case 1: (void)printf("tenths.\n"); break; case 2: (void)printf("hundredths.\n"); break; default: (void)printf("%s%sths.\n", pref[len % 3], name3[len / 3]); break; } } void usage(void) { (void)fprintf(stderr, "usage: number [# ...]\n"); exit(1); }