1 /* $Header: str.c,v 2.0 88/06/05 00:16:02 root Exp $
4 * Revision 2.0 88/06/05 00:16:02 root
5 * Baseline version 2.0.
19 str->str_pok = 0; /* invalidate pointer */
20 str->str_nok = 1; /* validate number */
31 GROWSTR(&(str->str_ptr), &(str->str_len), 24);
34 sprintf(s,"%.20g",str->str_nval);
38 str->str_cur = s - str->str_ptr;
42 fprintf(stderr,"0x%lx ptr(%s)\n",str,str->str_ptr);
53 if (str->str_len && str->str_pok)
54 str->str_nval = atof(str->str_ptr);
60 fprintf(stderr,"0x%lx num(%g)\n",str,str->str_nval);
71 else if (sstr->str_nok)
72 str_numset(dstr,sstr->str_nval);
73 else if (sstr->str_pok)
74 str_nset(dstr,sstr->str_ptr,sstr->str_cur);
84 GROWSTR(&(str->str_ptr), &(str->str_len), len + 1);
85 bcopy(ptr,str->str_ptr,len);
87 *(str->str_ptr+str->str_cur) = '\0';
88 str->str_nok = 0; /* invalidate number */
89 str->str_pok = 1; /* validate pointer */
101 GROWSTR(&(str->str_ptr), &(str->str_len), len + 1);
102 bcopy(ptr,str->str_ptr,len+1);
104 str->str_nok = 0; /* invalidate number */
105 str->str_pok = 1; /* validate pointer */
108 str_chop(str,ptr) /* like set but assuming ptr is in str */
114 str->str_cur -= (ptr - str->str_ptr);
115 bcopy(ptr,str->str_ptr, str->str_cur + 1);
116 str->str_nok = 0; /* invalidate number */
117 str->str_pok = 1; /* validate pointer */
120 str_ncat(str,ptr,len)
127 GROWSTR(&(str->str_ptr), &(str->str_len), str->str_cur + len + 1);
128 bcopy(ptr,str->str_ptr+str->str_cur,len);
130 *(str->str_ptr+str->str_cur) = '\0';
131 str->str_nok = 0; /* invalidate number */
132 str->str_pok = 1; /* validate pointer */
139 if (!(sstr->str_pok))
142 str_ncat(dstr,sstr->str_ptr,sstr->str_cur);
156 GROWSTR(&(str->str_ptr), &(str->str_len), str->str_cur + len + 1);
157 bcopy(ptr,str->str_ptr+str->str_cur,len+1);
159 str->str_nok = 0; /* invalidate number */
160 str->str_pok = 1; /* validate pointer */
164 str_append_till(str,from,delim,keeplist)
176 GROWSTR(&(str->str_ptr), &(str->str_len), str->str_cur + len + 1);
177 str->str_nok = 0; /* invalidate number */
178 str->str_pok = 1; /* validate pointer */
179 to = str->str_ptr+str->str_cur;
180 for (; *from; from++,to++) {
181 if (*from == '\\' && from[1] && delim != '\\') {
183 if (from[1] == delim || from[1] == '\\')
188 else if (index(keeplist,from[1]))
193 else if (*from == delim)
198 str->str_cur = to - str->str_ptr;
210 freestrroot = str->str_link.str_next;
213 str = (STR *) safemalloc(sizeof(STR));
214 bzero((char*)str,sizeof(STR));
217 GROWSTR(&(str->str_ptr), &(str->str_len), len + 1);
227 GROWSTR(&(str->str_ptr), &(str->str_len), len + 1);
230 /* make str point to what nstr did */
233 str_replace(str,nstr)
237 safefree(str->str_ptr);
238 str->str_ptr = nstr->str_ptr;
239 str->str_len = nstr->str_len;
240 str->str_cur = nstr->str_cur;
241 str->str_pok = nstr->str_pok;
242 if (str->str_nok = nstr->str_nok)
243 str->str_nval = nstr->str_nval;
244 safefree((char*)nstr);
254 str->str_ptr[0] = '\0';
258 str->str_link.str_next = freestrroot;
280 #ifdef STDSTDIO /* Here is some breathtakingly efficient cheating */
282 register char *bp; /* we're going to steal some values */
283 register int cnt; /* from the stdio struct and put EVERYTHING */
284 register STDCHAR *ptr; /* in the innermost loop into registers */
285 register char newline = '\n'; /* (assuming at least 6 registers) */
289 cnt = fp->_cnt; /* get count into register */
290 str->str_nok = 0; /* invalidate number */
291 str->str_pok = 1; /* validate pointer */
292 if (str->str_len <= cnt) /* make sure we have the room */
293 GROWSTR(&(str->str_ptr), &(str->str_len), cnt+1);
294 bp = str->str_ptr; /* move these two too to registers */
298 if ((*bp++ = *ptr++) == newline)
299 if (bp <= str->str_ptr || bp[-2] != '\\')
300 goto thats_all_folks;
307 fp->_cnt = cnt; /* deregisterize cnt and ptr */
309 i = _filbuf(fp); /* get more characters */
311 ptr = fp->_ptr; /* reregisterize cnt and ptr */
313 bpx = bp - str->str_ptr; /* prepare for possible relocation */
314 GROWSTR(&(str->str_ptr), &(str->str_len), str->str_cur + cnt + 1);
315 bp = str->str_ptr + bpx; /* reconstitute our pointer */
317 if (i == newline) { /* all done for now? */
319 goto thats_all_folks;
321 else if (i == EOF) /* all done for ever? */
322 goto thats_all_folks;
323 *bp++ = i; /* now go back to screaming loop */
327 fp->_cnt = cnt; /* put these back or we're in trouble */
330 str->str_cur = bp - str->str_ptr; /* set length */
332 #else /* !STDSTDIO */ /* The big, slow, and stupid way */
334 static char buf[4192];
336 if (fgets(buf, sizeof buf, fp) != Nullch)
341 #endif /* STDSTDIO */
343 return str->str_cur ? str->str_ptr : Nullch;
355 str->str_nval += 1.0;
364 for (d = str->str_ptr; *d && *d != '.'; d++) ;
366 if (!isdigit(*str->str_ptr) || !isdigit(*d) ) {
367 str_numset(str,atof(str->str_ptr) + 1.0); /* punt */
370 while (d >= str->str_ptr) {
375 /* oh,oh, the number grew */
376 GROWSTR(&(str->str_ptr), &(str->str_len), str->str_cur + 2);
378 for (d = str->str_ptr + str->str_cur; d > str->str_ptr; d--)
392 str->str_nval -= 1.0;
397 str->str_nval = -1.0;
401 for (d = str->str_ptr; *d && *d != '.'; d++) ;
403 if (!isdigit(*str->str_ptr) || !isdigit(*d) || (*d == '0' && d == str->str_ptr)) {
404 str_numset(str,atof(str->str_ptr) - 1.0); /* punt */
407 while (d >= str->str_ptr) {
414 /* make a string that will exist for the duration of the expression eval */
420 register STR *str = str_new(0);
421 static long tmps_size = -1;
423 str_sset(str,oldstr);
424 if (++tmps_max > tmps_size) {
425 tmps_size = tmps_max;
426 if (!(tmps_size & 127)) {
428 tmps_list = (STR**)saferealloc((char*)tmps_list,
429 (tmps_size + 128) * sizeof(STR*) );
431 tmps_list = (STR**)safemalloc(128 * sizeof(char*));
434 tmps_list[tmps_max] = str;
442 register STR *str = str_new(0);
452 register STR *str = str_new(0);