1 c8af1ab1 2004-04-19 devnull #include <u.h>
  2 c8af1ab1 2004-04-19 devnull #include <libc.h>
  3 c8af1ab1 2004-04-19 devnull #include <bio.h>
  4 c8af1ab1 2004-04-19 devnull 	/* Macros for Rune support of ctype.h-like functions */
  5 c8af1ab1 2004-04-19 devnull 
  6 c8af1ab1 2004-04-19 devnull #define	isupper(r)	(L'A' <= (r) && (r) <= L'Z')
  7 c8af1ab1 2004-04-19 devnull #define	islower(r)	(L'a' <= (r) && (r) <= L'z')
  8 c8af1ab1 2004-04-19 devnull #define	isalpha(r)	(isupper(r) || islower(r))
  9 c8af1ab1 2004-04-19 devnull #define	islatin1(r)	(0xC0 <= (r) && (r) <= 0xFF)
 10 c8af1ab1 2004-04-19 devnull 
 11 c8af1ab1 2004-04-19 devnull #define	isdigit(r)	(L'0' <= (r) && (r) <= L'9')
 12 c8af1ab1 2004-04-19 devnull 
 13 c8af1ab1 2004-04-19 devnull #define	isalnum(r)	(isalpha(r) || isdigit(r))
 14 c8af1ab1 2004-04-19 devnull 
 15 c8af1ab1 2004-04-19 devnull #define	isspace(r)	((r) == L' ' || (r) == L'\t' \
 16 c8af1ab1 2004-04-19 devnull 			|| (0x0A <= (r) && (r) <= 0x0D))
 17 c8af1ab1 2004-04-19 devnull 
 18 c8af1ab1 2004-04-19 devnull #define	tolower(r)	((r)-'A'+'a')
 19 c8af1ab1 2004-04-19 devnull 
 20 c8af1ab1 2004-04-19 devnull #define	sgn(v)		((v) < 0 ? -1 : ((v) > 0 ? 1 : 0))
 21 c8af1ab1 2004-04-19 devnull 
 22 c8af1ab1 2004-04-19 devnull #define	WORDSIZ	4000
 23 c8af1ab1 2004-04-19 devnull char	*filename = "#9/lib/words";
 24 c8af1ab1 2004-04-19 devnull Biobuf	*dfile;
 25 c8af1ab1 2004-04-19 devnull Biobuf	bout;
 26 c8af1ab1 2004-04-19 devnull Biobuf	bin;
 27 c8af1ab1 2004-04-19 devnull 
 28 c8af1ab1 2004-04-19 devnull int	fold;
 29 c8af1ab1 2004-04-19 devnull int	direc;
 30 c8af1ab1 2004-04-19 devnull int	exact;
 31 c8af1ab1 2004-04-19 devnull int	iflag;
 32 c8af1ab1 2004-04-19 devnull int	rev = 1;	/*-1 for reverse-ordered file, not implemented*/
 33 c8af1ab1 2004-04-19 devnull int	(*compare)(Rune*, Rune*);
 34 c8af1ab1 2004-04-19 devnull Rune	tab = '\t';
 35 c8af1ab1 2004-04-19 devnull Rune	entry[WORDSIZ];
 36 c8af1ab1 2004-04-19 devnull Rune	word[WORDSIZ];
 37 c8af1ab1 2004-04-19 devnull Rune	key[50], orig[50];
 38 c8af1ab1 2004-04-19 devnull Rune	latin_fold_tab[] =
 39 c8af1ab1 2004-04-19 devnull {
 40 c8af1ab1 2004-04-19 devnull /*	Table to fold latin 1 characters to ASCII equivalents
 41 c8af1ab1 2004-04-19 devnull 			based at Rune value 0xc0
 42 c8af1ab1 2004-04-19 devnull 
 43 c8af1ab1 2004-04-19 devnull 	 À    Á    Â    Ã    Ä    Å    Æ    Ç
 44 c8af1ab1 2004-04-19 devnull 	 È    É    Ê    Ë    Ì    Í    Î    Ï
 45 c8af1ab1 2004-04-19 devnull 	 Ð    Ñ    Ò    Ó    Ô    Õ    Ö    ×
 46 c8af1ab1 2004-04-19 devnull 	 Ø    Ù    Ú    Û    Ü    Ý    Þ    ß
 47 c8af1ab1 2004-04-19 devnull 	 à    á    â    ã    ä    å    æ    ç
 48 c8af1ab1 2004-04-19 devnull 	 è    é    ê    ë    ì    í    î    ï
 49 c8af1ab1 2004-04-19 devnull 	 ð    ñ    ò    ó    ô    õ    ö    ÷
 50 c8af1ab1 2004-04-19 devnull 	 ø    ù    ú    û    ü    ý    þ    ÿ
 51 c8af1ab1 2004-04-19 devnull */
 52 c8af1ab1 2004-04-19 devnull 	'a', 'a', 'a', 'a', 'a', 'a', 'a', 'c',
 53 c8af1ab1 2004-04-19 devnull 	'e', 'e', 'e', 'e', 'i', 'i', 'i', 'i',
 54 c8af1ab1 2004-04-19 devnull 	'd', 'n', 'o', 'o', 'o', 'o', 'o',  0 ,
 55 c8af1ab1 2004-04-19 devnull 	'o', 'u', 'u', 'u', 'u', 'y',  0 ,  0 ,
 56 c8af1ab1 2004-04-19 devnull 	'a', 'a', 'a', 'a', 'a', 'a', 'a', 'c',
 57 c8af1ab1 2004-04-19 devnull 	'e', 'e', 'e', 'e', 'i', 'i', 'i', 'i',
 58 c8af1ab1 2004-04-19 devnull 	'd', 'n', 'o', 'o', 'o', 'o', 'o',  0 ,
 59 c8af1ab1 2004-04-19 devnull 	'o', 'u', 'u', 'u', 'u', 'y',  0 , 'y',
 60 c8af1ab1 2004-04-19 devnull };
 61 c8af1ab1 2004-04-19 devnull 
 62 c8af1ab1 2004-04-19 devnull int	locate(void);
 63 c8af1ab1 2004-04-19 devnull int	acomp(Rune*, Rune*);
 64 c8af1ab1 2004-04-19 devnull int	getword(Biobuf*, Rune *rp, int n);
 65 c8af1ab1 2004-04-19 devnull void	torune(char*, Rune*);
 66 c8af1ab1 2004-04-19 devnull void	rcanon(Rune*, Rune*);
 67 c8af1ab1 2004-04-19 devnull int	ncomp(Rune*, Rune*);
 68 c8af1ab1 2004-04-19 devnull 
 69 c8af1ab1 2004-04-19 devnull void
 70 c8af1ab1 2004-04-19 devnull main(int argc, char *argv[])
 71 c8af1ab1 2004-04-19 devnull {
 72 c8af1ab1 2004-04-19 devnull 	int n;
 73 c8af1ab1 2004-04-19 devnull 
 74 c8af1ab1 2004-04-19 devnull 	filename = unsharp(filename);
 75 c8af1ab1 2004-04-19 devnull 
 76 c8af1ab1 2004-04-19 devnull 	Binit(&bin, 0, OREAD);
 77 c8af1ab1 2004-04-19 devnull 	Binit(&bout, 1, OWRITE);
 78 c8af1ab1 2004-04-19 devnull 	compare = acomp;
 79 c8af1ab1 2004-04-19 devnull 	ARGBEGIN{
 80 c8af1ab1 2004-04-19 devnull 	case 'd':
 81 c8af1ab1 2004-04-19 devnull 		direc++;
 82 c8af1ab1 2004-04-19 devnull 		break;
 83 c8af1ab1 2004-04-19 devnull 	case 'f':
 84 c8af1ab1 2004-04-19 devnull 		fold++;
 85 c8af1ab1 2004-04-19 devnull 		break;
 86 c8af1ab1 2004-04-19 devnull 	case 'i': 
 87 c8af1ab1 2004-04-19 devnull 		iflag++;
 88 c8af1ab1 2004-04-19 devnull 		break;
 89 c8af1ab1 2004-04-19 devnull 	case 'n':
 90 c8af1ab1 2004-04-19 devnull 		compare = ncomp;
 91 c8af1ab1 2004-04-19 devnull 		break;
 92 c8af1ab1 2004-04-19 devnull 	case 't':
 93 c8af1ab1 2004-04-19 devnull 		chartorune(&tab,ARGF());
 94 c8af1ab1 2004-04-19 devnull 		break;
 95 c8af1ab1 2004-04-19 devnull 	case 'x':
 96 c8af1ab1 2004-04-19 devnull 		exact++;
 97 c8af1ab1 2004-04-19 devnull 		break;
 98 c8af1ab1 2004-04-19 devnull 	default:
 99 c8af1ab1 2004-04-19 devnull 		fprint(2, "%s: bad option %c\n", argv0, ARGC());
100 c8af1ab1 2004-04-19 devnull 		fprint(2, "usage: %s -[dfinx] [-t c] [string] [file]\n", argv0);
101 c8af1ab1 2004-04-19 devnull 		exits("usage");
102 c8af1ab1 2004-04-19 devnull 	} ARGEND
103 c8af1ab1 2004-04-19 devnull 	if(!iflag){
104 c8af1ab1 2004-04-19 devnull 		if(argc >= 1) {
105 c8af1ab1 2004-04-19 devnull 			torune(argv[0], orig);
106 c8af1ab1 2004-04-19 devnull 			argv++;
107 c8af1ab1 2004-04-19 devnull 			argc--;
108 c8af1ab1 2004-04-19 devnull 		} else
109 c8af1ab1 2004-04-19 devnull 			iflag++;
110 c8af1ab1 2004-04-19 devnull 	}
111 c8af1ab1 2004-04-19 devnull 	if(argc < 1) {
112 c8af1ab1 2004-04-19 devnull 		direc++;
113 c8af1ab1 2004-04-19 devnull 		fold++;
114 c8af1ab1 2004-04-19 devnull 	} else 
115 c8af1ab1 2004-04-19 devnull 		filename = argv[0];
116 c8af1ab1 2004-04-19 devnull 	if (!iflag)
117 c8af1ab1 2004-04-19 devnull 		rcanon(orig, key);
118 c8af1ab1 2004-04-19 devnull 	dfile = Bopen(filename, OREAD);
119 c8af1ab1 2004-04-19 devnull 	if(dfile == 0) {
120 c8af1ab1 2004-04-19 devnull 		fprint(2, "look: can't open %s\n", filename);
121 c8af1ab1 2004-04-19 devnull 		exits("no dictionary");
122 c8af1ab1 2004-04-19 devnull 	}
123 c8af1ab1 2004-04-19 devnull 	if(!iflag)
124 c8af1ab1 2004-04-19 devnull 		if(!locate())
125 c8af1ab1 2004-04-19 devnull 			exits("not found");
126 c8af1ab1 2004-04-19 devnull 	do {
127 c8af1ab1 2004-04-19 devnull 		if(iflag) {
128 c8af1ab1 2004-04-19 devnull 			Bflush(&bout);
129 c8af1ab1 2004-04-19 devnull 			if(!getword(&bin, orig, sizeof(orig)/sizeof(orig[0])))
130 c8af1ab1 2004-04-19 devnull 				exits(0);
131 c8af1ab1 2004-04-19 devnull 			rcanon(orig, key);
132 c8af1ab1 2004-04-19 devnull 			if(!locate())
133 c8af1ab1 2004-04-19 devnull 				continue;
134 c8af1ab1 2004-04-19 devnull 		}
135 c8af1ab1 2004-04-19 devnull 		if (!exact || !acomp(word, key))
136 c8af1ab1 2004-04-19 devnull 			Bprint(&bout, "%S\n", entry);
137 c8af1ab1 2004-04-19 devnull 		while(getword(dfile, entry, sizeof(entry)/sizeof(entry[0]))) {
138 c8af1ab1 2004-04-19 devnull 			rcanon(entry, word);
139 c8af1ab1 2004-04-19 devnull 			n = compare(key, word);
140 c8af1ab1 2004-04-19 devnull 			switch(n) {
141 c8af1ab1 2004-04-19 devnull 			case -1:
142 c8af1ab1 2004-04-19 devnull 				if(exact)
143 c8af1ab1 2004-04-19 devnull 					break;
144 c8af1ab1 2004-04-19 devnull 			case 0:
145 c8af1ab1 2004-04-19 devnull 				if (!exact || !acomp(word, orig))
146 c8af1ab1 2004-04-19 devnull 					Bprint(&bout, "%S\n", entry);
147 c8af1ab1 2004-04-19 devnull 				continue;
148 c8af1ab1 2004-04-19 devnull 			}
149 c8af1ab1 2004-04-19 devnull 			break;
150 c8af1ab1 2004-04-19 devnull 		}
151 c8af1ab1 2004-04-19 devnull 	} while(iflag);
152 c8af1ab1 2004-04-19 devnull 	exits(0);
153 c8af1ab1 2004-04-19 devnull }
154 c8af1ab1 2004-04-19 devnull 
155 c8af1ab1 2004-04-19 devnull int
156 c8af1ab1 2004-04-19 devnull locate(void)
157 c8af1ab1 2004-04-19 devnull {
158 c8af1ab1 2004-04-19 devnull 	long top, bot, mid;
159 c8af1ab1 2004-04-19 devnull 	long c;
160 c8af1ab1 2004-04-19 devnull 	int n;
161 c8af1ab1 2004-04-19 devnull 
162 c8af1ab1 2004-04-19 devnull 	bot = 0;
163 c8af1ab1 2004-04-19 devnull 	top = Bseek(dfile, 0L, 2);
164 c8af1ab1 2004-04-19 devnull 	for(;;) {
165 c8af1ab1 2004-04-19 devnull 		mid = (top+bot) / 2;
166 c8af1ab1 2004-04-19 devnull 		Bseek(dfile, mid, 0);
167 c8af1ab1 2004-04-19 devnull 		do
168 c8af1ab1 2004-04-19 devnull 			c = Bgetrune(dfile);
169 c8af1ab1 2004-04-19 devnull 		while(c>=0 && c!='\n');
170 c8af1ab1 2004-04-19 devnull 		mid = Boffset(dfile);
171 c8af1ab1 2004-04-19 devnull 		if(!getword(dfile, entry, sizeof(entry)/sizeof(entry[0])))
172 c8af1ab1 2004-04-19 devnull 			break;
173 c8af1ab1 2004-04-19 devnull 		rcanon(entry, word);
174 c8af1ab1 2004-04-19 devnull 		n = compare(key, word);
175 c8af1ab1 2004-04-19 devnull 		switch(n) {
176 c8af1ab1 2004-04-19 devnull 		case -2:
177 c8af1ab1 2004-04-19 devnull 		case -1:
178 c8af1ab1 2004-04-19 devnull 		case 0:
179 c8af1ab1 2004-04-19 devnull 			if(top <= mid)
180 c8af1ab1 2004-04-19 devnull 				break;
181 c8af1ab1 2004-04-19 devnull 			top = mid;
182 c8af1ab1 2004-04-19 devnull 			continue;
183 c8af1ab1 2004-04-19 devnull 		case 1:
184 c8af1ab1 2004-04-19 devnull 		case 2:
185 c8af1ab1 2004-04-19 devnull 			bot = mid;
186 c8af1ab1 2004-04-19 devnull 			continue;
187 c8af1ab1 2004-04-19 devnull 		}
188 c8af1ab1 2004-04-19 devnull 		break;
189 c8af1ab1 2004-04-19 devnull 	}
190 c8af1ab1 2004-04-19 devnull 	Bseek(dfile, bot, 0);
191 c8af1ab1 2004-04-19 devnull 	while(getword(dfile, entry, sizeof(entry)/sizeof(entry[0]))) {
192 c8af1ab1 2004-04-19 devnull 		rcanon(entry, word);
193 c8af1ab1 2004-04-19 devnull 		n = compare(key, word);
194 c8af1ab1 2004-04-19 devnull 		switch(n) {
195 c8af1ab1 2004-04-19 devnull 		case -2:
196 c8af1ab1 2004-04-19 devnull 			return 0;
197 c8af1ab1 2004-04-19 devnull 		case -1:
198 c8af1ab1 2004-04-19 devnull 			if(exact)
199 c8af1ab1 2004-04-19 devnull 				return 0;
200 c8af1ab1 2004-04-19 devnull 		case 0:
201 c8af1ab1 2004-04-19 devnull 			return 1;
202 c8af1ab1 2004-04-19 devnull 		case 1:
203 c8af1ab1 2004-04-19 devnull 		case 2:
204 c8af1ab1 2004-04-19 devnull 			continue;
205 c8af1ab1 2004-04-19 devnull 		}
206 c8af1ab1 2004-04-19 devnull 	}
207 c8af1ab1 2004-04-19 devnull 	return 0;
208 c8af1ab1 2004-04-19 devnull }
209 c8af1ab1 2004-04-19 devnull 
210 c8af1ab1 2004-04-19 devnull /*
211 c8af1ab1 2004-04-19 devnull  *	acomp(s, t) returns:
212 c8af1ab1 2004-04-19 devnull  *		-2 if s strictly precedes t
213 c8af1ab1 2004-04-19 devnull  *		-1 if s is a prefix of t
214 c8af1ab1 2004-04-19 devnull  *		0 if s is the same as t
215 c8af1ab1 2004-04-19 devnull  *		1 if t is a prefix of s
216 c8af1ab1 2004-04-19 devnull  *		2 if t strictly precedes s
217 c8af1ab1 2004-04-19 devnull  */
218 c8af1ab1 2004-04-19 devnull 
219 c8af1ab1 2004-04-19 devnull int
220 c8af1ab1 2004-04-19 devnull acomp(Rune *s, Rune *t)
221 c8af1ab1 2004-04-19 devnull {
222 c8af1ab1 2004-04-19 devnull 	int cs, ct;
223 c8af1ab1 2004-04-19 devnull 
224 c8af1ab1 2004-04-19 devnull 	for(;;) {
225 c8af1ab1 2004-04-19 devnull 		cs = *s;
226 c8af1ab1 2004-04-19 devnull 		ct = *t;
227 c8af1ab1 2004-04-19 devnull 		if(cs != ct)
228 c8af1ab1 2004-04-19 devnull 			break;
229 c8af1ab1 2004-04-19 devnull 		if(cs == 0)
230 c8af1ab1 2004-04-19 devnull 			return 0;
231 c8af1ab1 2004-04-19 devnull 		s++;
232 c8af1ab1 2004-04-19 devnull 		t++;
233 c8af1ab1 2004-04-19 devnull 	}
234 c8af1ab1 2004-04-19 devnull 	if(cs == 0)
235 c8af1ab1 2004-04-19 devnull 		return -1;
236 c8af1ab1 2004-04-19 devnull 	if(ct == 0)
237 c8af1ab1 2004-04-19 devnull 		return 1;
238 c8af1ab1 2004-04-19 devnull 	if(cs < ct)
239 c8af1ab1 2004-04-19 devnull 		return -2;
240 c8af1ab1 2004-04-19 devnull 	return 2;
241 c8af1ab1 2004-04-19 devnull }
242 c8af1ab1 2004-04-19 devnull 
243 c8af1ab1 2004-04-19 devnull void
244 c8af1ab1 2004-04-19 devnull torune(char *old, Rune *new)
245 c8af1ab1 2004-04-19 devnull {
246 c8af1ab1 2004-04-19 devnull 	do old += chartorune(new, old);
247 c8af1ab1 2004-04-19 devnull 	while(*new++);
248 c8af1ab1 2004-04-19 devnull }
249 c8af1ab1 2004-04-19 devnull 
250 c8af1ab1 2004-04-19 devnull void
251 c8af1ab1 2004-04-19 devnull rcanon(Rune *old, Rune *new)
252 c8af1ab1 2004-04-19 devnull {
253 c8af1ab1 2004-04-19 devnull 	Rune r;
254 c8af1ab1 2004-04-19 devnull 
255 c8af1ab1 2004-04-19 devnull 	while((r = *old++) && r != tab) {
256 c8af1ab1 2004-04-19 devnull 		if (islatin1(r) && latin_fold_tab[r-0xc0])
257 c8af1ab1 2004-04-19 devnull 				r = latin_fold_tab[r-0xc0];
258 c8af1ab1 2004-04-19 devnull 		if(direc)
259 c8af1ab1 2004-04-19 devnull 			if(!(isalnum(r) || r == L' ' || r == L'\t'))
260 c8af1ab1 2004-04-19 devnull 				continue;
261 c8af1ab1 2004-04-19 devnull 		if(fold)
262 c8af1ab1 2004-04-19 devnull 			if(isupper(r))
263 c8af1ab1 2004-04-19 devnull 				r = tolower(r);
264 c8af1ab1 2004-04-19 devnull 		*new++ = r;
265 c8af1ab1 2004-04-19 devnull 	}
266 c8af1ab1 2004-04-19 devnull 	*new = 0;
267 c8af1ab1 2004-04-19 devnull }
268 c8af1ab1 2004-04-19 devnull 
269 c8af1ab1 2004-04-19 devnull int
270 c8af1ab1 2004-04-19 devnull ncomp(Rune *s, Rune *t)
271 c8af1ab1 2004-04-19 devnull {
272 c8af1ab1 2004-04-19 devnull 	Rune *is, *it, *js, *jt;
273 c8af1ab1 2004-04-19 devnull 	int a, b;
274 c8af1ab1 2004-04-19 devnull 	int ssgn, tsgn;
275 c8af1ab1 2004-04-19 devnull 
276 c8af1ab1 2004-04-19 devnull 	while(isspace(*s))
277 c8af1ab1 2004-04-19 devnull 		s++;
278 c8af1ab1 2004-04-19 devnull 	while(isspace(*t))
279 c8af1ab1 2004-04-19 devnull 		t++;
280 c8af1ab1 2004-04-19 devnull 	ssgn = tsgn = -2*rev;
281 c8af1ab1 2004-04-19 devnull 	if(*s == '-') {
282 c8af1ab1 2004-04-19 devnull 		s++;
283 c8af1ab1 2004-04-19 devnull 		ssgn = -ssgn;
284 c8af1ab1 2004-04-19 devnull 	}
285 c8af1ab1 2004-04-19 devnull 	if(*t == '-') {
286 c8af1ab1 2004-04-19 devnull 		t++;
287 c8af1ab1 2004-04-19 devnull 		tsgn = -tsgn;
288 c8af1ab1 2004-04-19 devnull 	}
289 c8af1ab1 2004-04-19 devnull 	for(is = s; isdigit(*is); is++)
290 c8af1ab1 2004-04-19 devnull 		;
291 c8af1ab1 2004-04-19 devnull 	for(it = t; isdigit(*it); it++)
292 c8af1ab1 2004-04-19 devnull 		;
293 c8af1ab1 2004-04-19 devnull 	js = is;
294 c8af1ab1 2004-04-19 devnull 	jt = it;
295 c8af1ab1 2004-04-19 devnull 	a = 0;
296 c8af1ab1 2004-04-19 devnull 	if(ssgn == tsgn)
297 c8af1ab1 2004-04-19 devnull 		while(it>t && is>s)
298 c8af1ab1 2004-04-19 devnull 			if(b = *--it - *--is)
299 c8af1ab1 2004-04-19 devnull 				a = b;
300 c8af1ab1 2004-04-19 devnull 	while(is > s)
301 c8af1ab1 2004-04-19 devnull 		if(*--is != '0')
302 c8af1ab1 2004-04-19 devnull 			return -ssgn;
303 c8af1ab1 2004-04-19 devnull 	while(it > t)
304 c8af1ab1 2004-04-19 devnull 		if(*--it != '0')
305 c8af1ab1 2004-04-19 devnull 			return tsgn;
306 c8af1ab1 2004-04-19 devnull 	if(a)
307 c8af1ab1 2004-04-19 devnull 		return sgn(a)*ssgn;
308 c8af1ab1 2004-04-19 devnull 	if(*(s=js) == '.')
309 c8af1ab1 2004-04-19 devnull 		s++;
310 c8af1ab1 2004-04-19 devnull 	if(*(t=jt) == '.')
311 c8af1ab1 2004-04-19 devnull 		t++;
312 c8af1ab1 2004-04-19 devnull 	if(ssgn == tsgn)
313 c8af1ab1 2004-04-19 devnull 		while(isdigit(*s) && isdigit(*t))
314 c8af1ab1 2004-04-19 devnull 			if(a = *t++ - *s++)
315 c8af1ab1 2004-04-19 devnull 				return sgn(a)*ssgn;
316 c8af1ab1 2004-04-19 devnull 	while(isdigit(*s))
317 c8af1ab1 2004-04-19 devnull 		if(*s++ != '0')
318 c8af1ab1 2004-04-19 devnull 			return -ssgn;
319 c8af1ab1 2004-04-19 devnull 	while(isdigit(*t))
320 c8af1ab1 2004-04-19 devnull 		if(*t++ != '0')
321 c8af1ab1 2004-04-19 devnull 			return tsgn;
322 c8af1ab1 2004-04-19 devnull 	return 0;
323 c8af1ab1 2004-04-19 devnull }
324 c8af1ab1 2004-04-19 devnull 
325 c8af1ab1 2004-04-19 devnull int
326 c8af1ab1 2004-04-19 devnull getword(Biobuf *f, Rune *rp, int n)
327 c8af1ab1 2004-04-19 devnull {
328 c8af1ab1 2004-04-19 devnull 	long c;
329 c8af1ab1 2004-04-19 devnull 
330 c8af1ab1 2004-04-19 devnull 	while(n-- > 0) {
331 c8af1ab1 2004-04-19 devnull 		c = Bgetrune(f);
332 c8af1ab1 2004-04-19 devnull 		if(c < 0)
333 c8af1ab1 2004-04-19 devnull 			return 0;
334 c8af1ab1 2004-04-19 devnull 		if(c == '\n') {
335 c8af1ab1 2004-04-19 devnull 			*rp = L'\0';
336 c8af1ab1 2004-04-19 devnull 			return 1;
337 c8af1ab1 2004-04-19 devnull 		}
338 c8af1ab1 2004-04-19 devnull 		*rp++ = c;
339 c8af1ab1 2004-04-19 devnull 	}
340 c8af1ab1 2004-04-19 devnull 	fprint(2, "Look: word too long.  Bailing out.\n");
341 c8af1ab1 2004-04-19 devnull 	return 0;
342 c8af1ab1 2004-04-19 devnull }