1 |
//--------------------------------------------------------------------------- |
2 |
#include "GStr.h" |
3 |
#include <stdio.h> |
4 |
#include <string.h> |
5 |
#include <ctype.h> |
6 |
#include "GBase.h" |
7 |
#include <stdarg.h> |
8 |
#include <errno.h> |
9 |
|
10 |
//--------------------------------------------------------------------------- |
11 |
|
12 |
GStr::Data GStr::null_data; |
13 |
|
14 |
//========================================= |
15 |
|
16 |
GStr::Data * GStr::new_data(int length) { |
17 |
//static method to return a new Data object (allocate length) |
18 |
//content is undefined, but it's null terminated |
19 |
if (length > 0) { |
20 |
Data* data; |
21 |
GMALLOC(data, sizeof(Data)+length); |
22 |
data->ref_count = 0; |
23 |
data->length = length; |
24 |
data->chars[length] = '\0'; |
25 |
return data; |
26 |
} |
27 |
else |
28 |
return &null_data; |
29 |
} |
30 |
|
31 |
GStr::Data* GStr::new_data(const char* str) { |
32 |
//static method to return a new Data object (allocate length) |
33 |
//as a copy of a given string |
34 |
if (str==NULL) return &null_data; |
35 |
int length=strlen(str); |
36 |
if (length > 0) { |
37 |
Data* data; |
38 |
GMALLOC(data, sizeof(Data)+length); |
39 |
strcpy(data->chars, str); |
40 |
data->ref_count = 0; |
41 |
data->length = length; |
42 |
data->chars[length] = '\0'; |
43 |
return data; |
44 |
} |
45 |
else |
46 |
return &null_data; |
47 |
} |
48 |
|
49 |
void GStr::replace_data(int len) { |
50 |
|
51 |
if (len == my_data->length && my_data->ref_count <= 1) |
52 |
return; |
53 |
|
54 |
if (my_data != &null_data && --my_data->ref_count == 0) |
55 |
GFREE(my_data); |
56 |
|
57 |
if (len > 0) { |
58 |
//my_data = (Data *) malloc(sizeof(Data) + len); |
59 |
GMALLOC(my_data, sizeof(Data) + len); |
60 |
my_data->ref_count = 1; |
61 |
my_data->length = len; |
62 |
my_data->chars[len] = '\0'; |
63 |
} |
64 |
else |
65 |
my_data = &null_data; |
66 |
} |
67 |
|
68 |
void GStr::replace_data(Data *data) { |
69 |
if (my_data != &null_data && --my_data->ref_count == 0) |
70 |
GFREE(my_data); |
71 |
if (data != &null_data) |
72 |
data->ref_count++; |
73 |
my_data = data; |
74 |
} |
75 |
|
76 |
void GStr::make_unique() {//make sure it's not a reference to other string |
77 |
if (my_data->ref_count > 1) { |
78 |
Data *data = new_data(length()); |
79 |
::memcpy(data->chars, chars(), length()); |
80 |
my_data->ref_count--; |
81 |
my_data = data; |
82 |
my_data->ref_count++; |
83 |
} |
84 |
} |
85 |
|
86 |
bool operator==(const char *s1, const GStr& s2){ |
87 |
if (s1==NULL) return s2.is_empty(); |
88 |
return (strcmp(s1, s2.chars()) == 0); |
89 |
} |
90 |
|
91 |
bool operator<(const char *s1, const GStr& s2) { |
92 |
if (s1==NULL) return !s2.is_empty(); |
93 |
return (strcmp(s1, s2.chars()) < 0); |
94 |
} |
95 |
|
96 |
bool operator<=(const char *s1, const GStr& s2){ |
97 |
if (s1==NULL) return true; |
98 |
return (strcmp(s1, s2.chars()) <= 0); |
99 |
} |
100 |
|
101 |
bool operator>(const char *s1, const GStr& s2) { |
102 |
if (s1==NULL) return false; |
103 |
return (strcmp(s1, s2.chars()) > 0); |
104 |
} |
105 |
|
106 |
|
107 |
GStr::GStr():my_data(&null_data) { |
108 |
fTokenDelimiter=NULL; |
109 |
fTokenizeMode=tkCharSet; |
110 |
fLastTokenStart=0; |
111 |
readbuf=NULL; |
112 |
readbufsize=0; |
113 |
} |
114 |
|
115 |
GStr::GStr(const GStr& s): my_data(&null_data){ |
116 |
fTokenDelimiter=NULL; |
117 |
fTokenizeMode=tkCharSet; |
118 |
fLastTokenStart=0; |
119 |
readbuf=NULL; |
120 |
readbufsize=0; |
121 |
replace_data(s.my_data); |
122 |
} |
123 |
|
124 |
GStr::GStr(const char *s): my_data(&null_data) { |
125 |
fTokenDelimiter=NULL; |
126 |
fTokenizeMode=tkCharSet; |
127 |
fLastTokenStart=0; |
128 |
readbuf=NULL; |
129 |
readbufsize=0; |
130 |
my_data=new_data(s); |
131 |
my_data->ref_count = 1; |
132 |
} |
133 |
|
134 |
GStr::GStr(const int i): my_data(&null_data) { |
135 |
fTokenDelimiter=NULL; |
136 |
fTokenizeMode=tkCharSet; |
137 |
fLastTokenStart=0; |
138 |
readbuf=NULL; |
139 |
readbufsize=0; |
140 |
char buf[20]; |
141 |
sprintf(buf,"%d",i); |
142 |
const int len = ::strlen(buf); |
143 |
replace_data(len); |
144 |
::memcpy(chrs(), buf, len); |
145 |
} |
146 |
|
147 |
GStr::GStr(const double f): my_data(&null_data) { |
148 |
fTokenDelimiter=NULL; |
149 |
fTokenizeMode=tkCharSet; |
150 |
fLastTokenStart=0; |
151 |
readbuf=NULL; |
152 |
readbufsize=0; |
153 |
char buf[20]; |
154 |
sprintf(buf,"%f",f); |
155 |
const int len = ::strlen(buf); |
156 |
replace_data(len); |
157 |
::memcpy(chrs(), buf, len); |
158 |
} |
159 |
|
160 |
GStr::GStr(char c, int n): my_data(&null_data) { |
161 |
fTokenDelimiter=NULL; |
162 |
fTokenizeMode=tkCharSet; |
163 |
fLastTokenStart=0; |
164 |
readbuf=NULL; |
165 |
readbufsize=0; |
166 |
replace_data(n); ::memset(chrs(), c, n); |
167 |
} |
168 |
|
169 |
GStr::~GStr() { |
170 |
if (my_data != &null_data && --my_data->ref_count == 0) |
171 |
GFREE(my_data); |
172 |
GFREE(fTokenDelimiter); |
173 |
GFREE(readbuf); |
174 |
} |
175 |
|
176 |
char& GStr::operator[](int idx){ |
177 |
//returns reference to char (can be l-value) |
178 |
if (idx < 0) idx += length(); |
179 |
if (idx < 0 || idx >= length()) invalid_index_error("operator[]"); |
180 |
make_unique(); //because the user will probably modify this char! |
181 |
return chrs()[idx]; |
182 |
} |
183 |
|
184 |
char GStr::operator[](int idx) const { |
185 |
//returns char copy (cannot be l-value!) |
186 |
if (idx < 0) idx += length(); |
187 |
if (idx < 0 || idx >= length()) invalid_index_error("operator[]"); |
188 |
return chars()[idx]; |
189 |
} |
190 |
|
191 |
GStr& GStr::operator=(const GStr& s) { |
192 |
make_unique(); //edit operation ahead |
193 |
replace_data(s.my_data); |
194 |
return *this; |
195 |
} |
196 |
|
197 |
GStr& GStr::operator=(const char *s) { |
198 |
make_unique(); //edit operation ahead |
199 |
if (s==NULL) { |
200 |
replace_data(0); |
201 |
return *this; |
202 |
} |
203 |
const int len = ::strlen(s); replace_data(len); |
204 |
::memcpy(chrs(), s, len); |
205 |
return *this; |
206 |
} |
207 |
|
208 |
GStr& GStr::operator=(const double f) { |
209 |
make_unique(); //edit operation ahead |
210 |
char buf[20]; |
211 |
sprintf(buf,"%f",f); |
212 |
const int len = ::strlen(buf); |
213 |
replace_data(len); |
214 |
::memcpy(chrs(), buf, len); |
215 |
return *this; |
216 |
} |
217 |
|
218 |
GStr& GStr::operator=(const int i) { |
219 |
make_unique(); //edit operation ahead |
220 |
char buf[20]; |
221 |
sprintf(buf,"%d",i); |
222 |
const int len = ::strlen(buf); |
223 |
replace_data(len); |
224 |
::memcpy(chrs(), buf, len); |
225 |
return *this; |
226 |
} |
227 |
|
228 |
bool GStr::operator==(const GStr& s) const { |
229 |
if (s.is_empty()) return is_empty(); |
230 |
return (length() == s.length()) && |
231 |
(memcmp(chars(), s.chars(), length()) == 0); |
232 |
} |
233 |
|
234 |
bool GStr::operator==(const char *s) const { |
235 |
if (s==NULL) return is_empty(); |
236 |
return (strcmp(chars(), s) == 0); |
237 |
} |
238 |
|
239 |
bool GStr::operator<(const GStr& s) const { |
240 |
if (s.is_empty()) return false; |
241 |
return (strcmp(chars(), s.chars()) < 0); |
242 |
} |
243 |
|
244 |
bool GStr::operator<(const char *s) const { |
245 |
if (s==NULL) return false; |
246 |
return (strcmp(chars(), s) < 0); |
247 |
} |
248 |
|
249 |
bool GStr::operator<=(const GStr& s) const { |
250 |
if (s.is_empty()) return is_empty(); |
251 |
return (strcmp(chars(), s.chars()) <= 0); |
252 |
} |
253 |
|
254 |
bool GStr::operator<=(const char *s) const { |
255 |
if (s==NULL) return is_empty(); |
256 |
return (strcmp(chars(), s) <= 0); |
257 |
} |
258 |
|
259 |
bool GStr::operator>(const GStr& s) const { |
260 |
if (s.is_empty()) return !is_empty(); |
261 |
return (strcmp(chars(), s.chars()) > 0); |
262 |
} |
263 |
|
264 |
bool GStr::operator>(const char *s) const { |
265 |
if (s==NULL) return !is_empty(); |
266 |
return (strcmp(chars(), s) > 0); |
267 |
} |
268 |
|
269 |
bool GStr::operator>=(const GStr& s) const { |
270 |
if (s.is_empty()) return true; |
271 |
return (strcmp(chars(), s.chars()) >= 0); |
272 |
} |
273 |
|
274 |
bool GStr::operator>=(const char *s) const { |
275 |
if (s==NULL) return true; |
276 |
return (strcmp(chars(), s) >= 0); |
277 |
} |
278 |
|
279 |
bool GStr::operator!=(const GStr& s) const { |
280 |
if (s.is_empty()) return !is_empty(); |
281 |
return (length() != s.length()) || |
282 |
(memcmp(chars(), s.chars(), length()) != 0); |
283 |
} |
284 |
|
285 |
bool GStr::operator!=(const char *s) const { |
286 |
if (s==NULL) return !is_empty(); |
287 |
return (strcmp(chars(), s) != 0); |
288 |
} |
289 |
|
290 |
GStr& GStr::append(char c) { |
291 |
char buf[5]; |
292 |
sprintf(buf,"%c",c); |
293 |
return append(buf); |
294 |
} |
295 |
|
296 |
GStr& GStr::append(int i) { |
297 |
char buf[20]; |
298 |
sprintf(buf,"%d",i); |
299 |
return append(buf); |
300 |
} |
301 |
|
302 |
GStr& GStr::append(uint i) { |
303 |
char buf[20]; |
304 |
sprintf(buf,"%u",i); |
305 |
return append(buf); |
306 |
} |
307 |
|
308 |
GStr& GStr::append(long l) { |
309 |
char buf[20]; |
310 |
sprintf(buf,"%ld",l); |
311 |
return append(buf); |
312 |
} |
313 |
|
314 |
GStr& GStr::append(unsigned long l) { |
315 |
char buf[20]; |
316 |
sprintf(buf,"%lu", l); |
317 |
return append(buf); |
318 |
} |
319 |
|
320 |
GStr& GStr::append(double f) { |
321 |
char buf[30]; |
322 |
sprintf(buf,"%f",f); |
323 |
return append(buf); |
324 |
} |
325 |
|
326 |
bool GStr::is_empty() const { |
327 |
//return my_data == &null_data; |
328 |
return (length()==0); |
329 |
} |
330 |
|
331 |
GStr GStr::copy() const { |
332 |
GStr newstring(*this); |
333 |
return newstring; |
334 |
} |
335 |
|
336 |
GStr& GStr::clear() { |
337 |
make_unique(); //edit operation ahead |
338 |
replace_data(0); |
339 |
return *this; |
340 |
} |
341 |
|
342 |
int GStr::index(const GStr& s, int start_index) const { |
343 |
return index(s.chars(), start_index); |
344 |
} |
345 |
|
346 |
bool GStr::contains(const GStr& s) const { |
347 |
return (index(s, 0) >= 0); |
348 |
} |
349 |
|
350 |
bool GStr::contains(const char *s) const { |
351 |
return (index(s, 0) >= 0); |
352 |
} |
353 |
|
354 |
bool GStr::startsWith(const char *s) const { |
355 |
//return (index(s, 0) == 0); |
356 |
return ::startsWith(this->chars(), s); |
357 |
} |
358 |
|
359 |
bool GStr::startsWith(const GStr& s) const { |
360 |
//return (index(s, 0) == 0); |
361 |
return ::startsWith(this->chars(), s.chars()); |
362 |
} |
363 |
|
364 |
bool GStr::endsWith(const char *s) const { |
365 |
//return (index(s, 0) == 0); |
366 |
return ::endsWith(this->chars(), s); |
367 |
} |
368 |
|
369 |
bool GStr::endsWith(const GStr& s) const { |
370 |
//return (index(s, 0) == 0); |
371 |
return ::endsWith(this->chars(), s.chars()); |
372 |
} |
373 |
|
374 |
bool GStr::contains(char c) const { |
375 |
return (index(c, 0) >= 0); |
376 |
} |
377 |
|
378 |
GStr& GStr::format(const char *fmt,...) { |
379 |
// Format as in sprintf |
380 |
make_unique(); //edit operation ahead |
381 |
char* buf; |
382 |
GMALLOC(buf, strlen(fmt)+1024); |
383 |
va_list arguments; |
384 |
va_start(arguments,fmt); |
385 |
//+1K buffer, should be enough for common expressions |
386 |
int len=vsprintf(buf,fmt,arguments); |
387 |
va_end(arguments); |
388 |
replace_data(len); //this also adds the '\0' at the end! |
389 |
//and sets the right len |
390 |
::memcpy(chrs(), buf, len); |
391 |
GFREE(buf); |
392 |
return *this; |
393 |
} |
394 |
|
395 |
GStr& GStr::appendfmt(const char *fmt,...) { |
396 |
// Format as in sprintf |
397 |
make_unique(); //edit operation ahead |
398 |
char* buf; |
399 |
GMALLOC(buf, strlen(fmt)+1024); |
400 |
va_list arguments; |
401 |
va_start(arguments,fmt); |
402 |
//+1K buffer, should be enough for common expressions |
403 |
vsprintf(buf,fmt,arguments); |
404 |
va_end(arguments); |
405 |
append(buf); |
406 |
GFREE(buf); |
407 |
return *this; |
408 |
} |
409 |
|
410 |
GStr& GStr::trim(char c) { |
411 |
register int istart; |
412 |
register int iend; |
413 |
for (istart=0; istart<length() && chars()[istart]==c;istart++) ; |
414 |
if (istart==length()) { |
415 |
make_unique(); //edit operation ahead |
416 |
replace_data(0); //string was entirely trimmed |
417 |
return *this; |
418 |
} |
419 |
for (iend=length()-1; iend>istart && chars()[iend]==c;iend--) ; |
420 |
int newlen=iend-istart+1; |
421 |
if (newlen==length()) //nothing to trim |
422 |
return *this; |
423 |
make_unique(); //edit operation ahead |
424 |
Data *data = new_data(newlen); |
425 |
::memcpy(data->chars, &chars()[istart], newlen); |
426 |
replace_data(data); |
427 |
return *this; |
428 |
} |
429 |
|
430 |
GStr& GStr::trim(const char* c) { |
431 |
register int istart; |
432 |
register int iend; |
433 |
for (istart=0; istart<length() && strchr(c, chars()[istart])!=NULL ;istart++) ; |
434 |
if (istart==length()) { |
435 |
replace_data(0); //string was entirely trimmed |
436 |
return *this; |
437 |
} |
438 |
for (iend=length()-1; iend>istart && strchr(c, chars()[iend])!=NULL;iend--) ; |
439 |
int newlen=iend-istart+1; |
440 |
if (newlen==length()) //nothing to trim |
441 |
return *this; |
442 |
make_unique(); //edit operation ahead |
443 |
Data *data = new_data(newlen); |
444 |
::memcpy(data->chars, &chars()[istart], newlen); |
445 |
replace_data(data); |
446 |
return *this; |
447 |
} |
448 |
|
449 |
GStr& GStr::trimR(char c) { |
450 |
//only trim the right end |
451 |
//register int istart; |
452 |
register int iend; |
453 |
for (iend=length()-1; iend>=0 && chars()[iend]==c;iend--) ; |
454 |
if (iend==-1) { |
455 |
replace_data(0); //string was entirely trimmed |
456 |
return *this; |
457 |
} |
458 |
int newlen=iend+1; |
459 |
if (newlen==length()) //nothing to trim |
460 |
return *this; |
461 |
make_unique(); //edit operation ahead |
462 |
|
463 |
Data *data = new_data(newlen); |
464 |
::memcpy(data->chars, chars(), newlen); |
465 |
replace_data(data); |
466 |
return *this; |
467 |
} |
468 |
|
469 |
GStr& GStr::trimR(const char* c) { |
470 |
register int iend; |
471 |
for (iend=length()-1; iend>=0 && strchr(c,chars()[iend])!=NULL;iend--) ; |
472 |
if (iend==-1) { |
473 |
replace_data(0); //string was entirely trimmed |
474 |
return *this; |
475 |
} |
476 |
int newlen=iend+1; |
477 |
if (newlen==length()) //nothing to trim |
478 |
return *this; |
479 |
make_unique(); //edit operation ahead |
480 |
Data *data = new_data(newlen); |
481 |
::memcpy(data->chars, chars(), newlen); |
482 |
replace_data(data); |
483 |
return *this; |
484 |
} |
485 |
|
486 |
|
487 |
GStr& GStr::chomp(const char* cstr) { |
488 |
register int iend; |
489 |
if (cstr==NULL || *cstr==0) return *this; |
490 |
//check if this ends with cstr |
491 |
int cend=strlen(cstr)-1; |
492 |
iend=my_data->length-1; |
493 |
while (iend>=0 && cend>=0) { |
494 |
if (my_data->chars[iend]!=cstr[cend]) return *this; |
495 |
iend--; |
496 |
cend--; |
497 |
} |
498 |
if (iend==-1) { |
499 |
replace_data(0); //string will be entirely trimmed |
500 |
return *this; |
501 |
} |
502 |
int newlen=iend+1; |
503 |
make_unique(); //edit operation ahead |
504 |
Data *data = new_data(newlen); |
505 |
::memcpy(data->chars, chars(), newlen); |
506 |
replace_data(data); |
507 |
return *this; |
508 |
} |
509 |
|
510 |
GStr& GStr::trimL(char c) { |
511 |
register int istart; |
512 |
for (istart=0; istart<length() && chars()[istart]==c;istart++) ; |
513 |
if (istart==length()) { |
514 |
replace_data(0); //string was entirely trimmed |
515 |
return *this; |
516 |
} |
517 |
int newlen=length()-istart; |
518 |
if (newlen==length()) //nothing to trim |
519 |
return *this; |
520 |
make_unique(); //edit operation ahead |
521 |
Data *data = new_data(newlen); |
522 |
::memcpy(data->chars, &chars()[istart], newlen); |
523 |
replace_data(data); |
524 |
return *this; |
525 |
} |
526 |
|
527 |
GStr& GStr::trimL(const char* c) { |
528 |
register int istart; |
529 |
for (istart=0; istart<length() && strchr(c,chars()[istart])!=NULL;istart++) ; |
530 |
if (istart==length()) { |
531 |
replace_data(0); //string was entirely trimmed |
532 |
return *this; |
533 |
} |
534 |
int newlen=length()-istart; |
535 |
if (newlen==length()) //nothing to trim |
536 |
return *this; |
537 |
make_unique(); //edit operation ahead |
538 |
|
539 |
Data *data = new_data(newlen); |
540 |
::memcpy(data->chars, &chars()[istart], newlen); |
541 |
replace_data(data); |
542 |
return *this; |
543 |
} |
544 |
|
545 |
GStr& GStr::padR(int len, char c) { |
546 |
//actually means align right in len |
547 |
if (length()>=len) return *this; //no room for padding |
548 |
make_unique(); //edit operation ahead |
549 |
Data *data = new_data(len); |
550 |
::memset(data->chars,c,len-length()); |
551 |
::memcpy(&data->chars[len-length()], chars(), length()); |
552 |
replace_data(data); |
553 |
return *this; |
554 |
} |
555 |
|
556 |
GStr& GStr::padL(int len, char c) { //align left the string |
557 |
if (length()>=len) return *this; //no room for padding |
558 |
make_unique(); //edit operation ahead |
559 |
Data *data = new_data(len); |
560 |
::memcpy(data->chars, chars(), length()); |
561 |
::memset(&data->chars[length()],c,len-length()); |
562 |
replace_data(data); |
563 |
return *this; |
564 |
} |
565 |
|
566 |
GStr& GStr::padC(int len, char c) { |
567 |
if (length()>=len) return *this; //no room for padding |
568 |
make_unique(); //edit operation ahead |
569 |
int istart=(len-length())/2; |
570 |
Data *data = new_data(len); |
571 |
if (istart>0) |
572 |
::memset(data->chars, c, istart); |
573 |
::memcpy(&data->chars[istart], chars(), length()); |
574 |
int iend=istart+length(); |
575 |
if (iend<len) |
576 |
::memset(&data->chars[iend],c,len-iend); |
577 |
replace_data(data); |
578 |
return *this; |
579 |
} |
580 |
|
581 |
GStr operator+(const char *s1, const GStr& s2) { |
582 |
const int s1_length = ::strlen(s1); |
583 |
|
584 |
if (s1_length == 0) |
585 |
return s2; |
586 |
else { |
587 |
GStr newstring; |
588 |
newstring.replace_data(s1_length + s2.length()); |
589 |
::memcpy(newstring.chrs(), s1, s1_length); |
590 |
::memcpy(&(newstring.chrs())[s1_length], s2.chars(), s2.length()); |
591 |
return newstring; |
592 |
} |
593 |
} |
594 |
|
595 |
//========================================= |
596 |
|
597 |
GStr GStr::operator+(const GStr& s) const { |
598 |
if (length() == 0) |
599 |
return s; |
600 |
else if (s.length() == 0) |
601 |
return *this; |
602 |
else { |
603 |
GStr newstring; |
604 |
newstring.replace_data(length() + s.length()); |
605 |
::memcpy(newstring.chrs(), chars(), length()); |
606 |
::memcpy(&(newstring.chrs())[length()], s.chars(), s.length()); |
607 |
return newstring; |
608 |
} |
609 |
} |
610 |
|
611 |
//========================================= |
612 |
|
613 |
GStr GStr::operator+(const char *s) const { |
614 |
|
615 |
const int s_length = ::strlen(s); |
616 |
|
617 |
if (s_length == 0) |
618 |
return *this; |
619 |
else { |
620 |
GStr newstring; |
621 |
newstring.replace_data(length() + s_length); |
622 |
::memcpy(newstring.chrs(), chars(), length()); |
623 |
::memcpy(&(newstring.chrs())[length()], s, s_length); |
624 |
return newstring; |
625 |
} |
626 |
} |
627 |
|
628 |
GStr GStr::operator+(const int i) const { |
629 |
char buf[20]; |
630 |
sprintf(buf, "%d", i); |
631 |
const int s_length = ::strlen(buf); |
632 |
GStr newstring; |
633 |
newstring.replace_data(length() + s_length); |
634 |
::memcpy(newstring.chrs(), chars(), length()); |
635 |
::memcpy(&(newstring.chrs())[length()], buf, s_length); |
636 |
return newstring; |
637 |
} |
638 |
|
639 |
GStr GStr::operator+(const char c) const { |
640 |
char buf[4]; |
641 |
sprintf(buf, "%c", c); |
642 |
const int s_length = ::strlen(buf); |
643 |
GStr newstring; |
644 |
newstring.replace_data(length() + s_length); |
645 |
::memcpy(newstring.chrs(), chars(), length()); |
646 |
::memcpy(&(newstring.chrs())[length()], buf, s_length); |
647 |
return newstring; |
648 |
} |
649 |
|
650 |
GStr GStr::operator+(const double f) const { |
651 |
char buf[30]; |
652 |
sprintf(buf, "%f", f); |
653 |
const int s_length = ::strlen(buf); |
654 |
GStr newstring; |
655 |
newstring.replace_data(length() + s_length); |
656 |
::memcpy(newstring.chrs(), chars(), length()); |
657 |
::memcpy(&(newstring.chrs())[length()], buf, s_length); |
658 |
return newstring; |
659 |
} |
660 |
|
661 |
|
662 |
//========================================= |
663 |
|
664 |
bool GStr::is_space() const { |
665 |
|
666 |
if (my_data == &null_data) |
667 |
return false; |
668 |
|
669 |
for (register const char *p = chars(); *p; p++) |
670 |
if (!isspace(*p)) |
671 |
return false; |
672 |
|
673 |
return true; |
674 |
} |
675 |
|
676 |
//========================================= |
677 |
|
678 |
GStr GStr::substr(int idx, int len) const { |
679 |
// A negative idx specifies an idx from the right of the string. |
680 |
if (idx < 0) |
681 |
idx += length(); |
682 |
|
683 |
// A length of -1 specifies the rest of the string. |
684 |
if (len < 0 || len>length()-idx) |
685 |
len = length() - idx; |
686 |
|
687 |
if (idx<0 || idx>=length() || len<0 ) |
688 |
invalid_args_error("substr()"); |
689 |
|
690 |
GStr newstring; |
691 |
newstring.replace_data(len); |
692 |
::memcpy(newstring.chrs(), &chars()[idx], len); |
693 |
return newstring; |
694 |
} |
695 |
|
696 |
GStr& GStr::reverse() { |
697 |
make_unique(); |
698 |
int l=0; |
699 |
int r=my_data->length-1; |
700 |
char c; |
701 |
while (l<r) { |
702 |
c=my_data->chars[l]; |
703 |
my_data->chars[l]=my_data->chars[r]; |
704 |
my_data->chars[r]=c; |
705 |
l++;r--; |
706 |
} |
707 |
return *this; |
708 |
} |
709 |
|
710 |
|
711 |
//transform: any character from 'from' is replaced with a coresponding |
712 |
//char from 'to' |
713 |
|
714 |
GStr& GStr::tr(const char *rfrom, const char* rto) { |
715 |
if (length() == 0 || rfrom==NULL || strlen(rfrom)==0) |
716 |
return *this; |
717 |
unsigned int l=strlen(rfrom); |
718 |
if (rto!=NULL && strlen(rto)!=l) |
719 |
invalid_args_error("tr()"); |
720 |
make_unique(); //edit operation ahead |
721 |
Data *data = new_data(length()); |
722 |
|
723 |
if (rto==NULL) { //deletion case |
724 |
char* s = my_data->chars; |
725 |
char* p; |
726 |
char* dest = data->chars; |
727 |
do { |
728 |
if ((p=strpbrk(s,rfrom))!=NULL) { |
729 |
memcpy(dest,s,p-s); |
730 |
dest+=p-s; |
731 |
s=p+1; |
732 |
} |
733 |
else { |
734 |
strcpy(dest, s); |
735 |
dest+=strlen(s); |
736 |
} |
737 |
} while (p!=NULL); |
738 |
(*dest)='\0'; |
739 |
} |
740 |
else { //char substitution case - easier! |
741 |
const char* p; |
742 |
for (int i=0; i<length(); i++) { |
743 |
if ((p=strchr(rfrom, my_data->chars[i]))!=NULL) |
744 |
my_data->chars[i]=rto[p-rfrom]; |
745 |
} |
746 |
} |
747 |
data->length=strlen(data->chars); |
748 |
replace_data(data); |
749 |
return *this; |
750 |
} |
751 |
|
752 |
|
753 |
// search and replace all the occurences of a string with another string |
754 |
// or just remove the given string (if replacement is NULL) |
755 |
GStr& GStr::replace(const char *rfrom, const char* rto) { |
756 |
if (length() == 0 || rfrom==NULL || strlen(rfrom)==0) |
757 |
return *this; |
758 |
unsigned int l=strlen(rfrom); |
759 |
unsigned int tl= (rto==NULL)?0:strlen(rto); |
760 |
make_unique(); //edit operation ahead |
761 |
char* p; |
762 |
char* dest; |
763 |
char* newdest=NULL; |
764 |
char* s = my_data->chars; |
765 |
if (tl!=l) { //reallocation |
766 |
if (tl>l) { //possible enlargement |
767 |
GMALLOC(newdest, length()*(tl-l+1)+1); |
768 |
} |
769 |
else {//delete or replace with a shorter string |
770 |
GMALLOC(newdest, length() + 1); |
771 |
} |
772 |
dest=newdest; |
773 |
if (tl==0) {//deletion |
774 |
while ((p=strstr(s,rfrom))!=NULL) { |
775 |
//rfrom found at position p |
776 |
memcpy(dest,s,p-s); |
777 |
dest+=p-s; |
778 |
s+=p-s+l; //s positioned in string after rfrom |
779 |
} |
780 |
//no more occurences, copy the remaining string |
781 |
strcpy(dest, s); |
782 |
} |
783 |
else { //replace with another string |
784 |
while ((p=strstr(s,rfrom))!=NULL) { |
785 |
memcpy(dest,s,p-s); //copy up rto the match |
786 |
dest+=p-s; |
787 |
memcpy(dest,rto,tl); //put the replacement string |
788 |
dest+=tl; |
789 |
s+=p-s+l; |
790 |
} |
791 |
//not found any more, copy rto end of string |
792 |
strcpy(dest, s); |
793 |
} |
794 |
Data* data=new_data(newdest); |
795 |
replace_data(data); |
796 |
GFREE(newdest); |
797 |
} |
798 |
else { //inplace editing: no need rto reallocate |
799 |
while ((p=strstr(s,rfrom))!=NULL) { |
800 |
memcpy(p,rto,l); |
801 |
s+=p-s+l; |
802 |
} |
803 |
} |
804 |
return *this; |
805 |
} |
806 |
|
807 |
|
808 |
|
809 |
GStr& GStr::cut(int idx, int len) { |
810 |
|
811 |
if (len == 0) |
812 |
return *this; |
813 |
make_unique(); //edit operation ahead |
814 |
|
815 |
// A negative idx specifies an idx from the right of the string, |
816 |
// so the left part will be cut out |
817 |
if (idx < 0) |
818 |
idx += length(); |
819 |
|
820 |
// A length of -1 specifies the rest of the string. |
821 |
if (len == -1) |
822 |
len = length() - idx; |
823 |
|
824 |
if (idx<0 || idx>=length() || len<0 || len>length()-idx) |
825 |
invalid_args_error("cut()"); |
826 |
|
827 |
Data *data = new_data(length() - len); |
828 |
if (idx > 0) |
829 |
::memcpy(data->chars, chars(), idx); |
830 |
::strcpy(&data->chars[idx], &chars()[idx+len]); |
831 |
replace_data(data); |
832 |
|
833 |
return *this; |
834 |
} |
835 |
|
836 |
//========================================= |
837 |
|
838 |
GStr& GStr::paste(const GStr& s, int idx, int len) { |
839 |
// A negative idx specifies an idx from the right of the string. |
840 |
if (idx < 0) |
841 |
idx += length(); |
842 |
make_unique(); //edit operation ahead |
843 |
|
844 |
// A length of -1 specifies the rest of the string. |
845 |
if (len == -1) |
846 |
len = length() - idx; |
847 |
|
848 |
if (idx<0 || idx>=length() || len<0 || len>length()-idx) |
849 |
invalid_args_error("replace()"); |
850 |
|
851 |
if (len == s.length() && my_data->ref_count == 1) |
852 |
::memcpy(&chrs()[idx], s.chars(), len); |
853 |
else { |
854 |
Data *data = new_data(length() - len + s.length()); |
855 |
if (idx > 0) |
856 |
::memcpy(data->chars, chars(), idx); |
857 |
if (s.length() > 0) |
858 |
::memcpy(&data->chars[idx], s.chars(), s.length()); |
859 |
::strcpy(&data->chars[idx+s.length()], &chars()[idx+len]); |
860 |
replace_data(data); |
861 |
} |
862 |
|
863 |
return *this; |
864 |
} |
865 |
|
866 |
//========================================= |
867 |
|
868 |
GStr& GStr::paste(const char *s, int idx, int len) { |
869 |
|
870 |
// A negative idx specifies an idx from the right of the string. |
871 |
make_unique(); //edit operation ahead |
872 |
if (idx < 0) |
873 |
idx += length(); |
874 |
|
875 |
// A length of -1 specifies the rest of the string. |
876 |
if (len == -1) |
877 |
len = length() - idx; |
878 |
|
879 |
if (idx<0 || idx>=length() || len<0 || len>length()-idx) |
880 |
invalid_args_error("replace()"); |
881 |
|
882 |
const int s_length = ::strlen(s); |
883 |
|
884 |
if (len == s_length && my_data->ref_count == 1) |
885 |
::memcpy(&chrs()[idx], s, len); |
886 |
else { |
887 |
Data *data = new_data(length() - len + s_length); |
888 |
if (idx > 0) |
889 |
::memcpy(data->chars, chars(), idx); |
890 |
if (s_length > 0) |
891 |
::memcpy(&data->chars[idx], s, s_length); |
892 |
::strcpy(&data->chars[idx+s_length], &chars()[idx+len]); |
893 |
replace_data(data); |
894 |
} |
895 |
|
896 |
return *this; |
897 |
} |
898 |
|
899 |
//========================================= |
900 |
|
901 |
GStr& GStr::insert(const GStr& s, int idx) { |
902 |
make_unique(); //edit operation ahead |
903 |
|
904 |
// A negative idx specifies an idx from the right of the string. |
905 |
if (idx < 0) |
906 |
idx += length(); |
907 |
|
908 |
if (idx < 0 || idx >= length()) |
909 |
invalid_index_error("insert()"); |
910 |
|
911 |
if (s.length() > 0) { |
912 |
Data *data = new_data(length() + s.length()); |
913 |
if (idx > 0) |
914 |
::memcpy(data->chars, chars(), idx); |
915 |
::memcpy(&data->chars[idx], s.chars(), s.length()); |
916 |
::strcpy(&data->chars[idx+s.length()], &chars()[idx]); |
917 |
replace_data(data); |
918 |
} |
919 |
|
920 |
return *this; |
921 |
} |
922 |
|
923 |
//========================================= |
924 |
|
925 |
GStr& GStr::insert(const char *s, int idx) { |
926 |
// A negative idx specifies an idx from the right of the string. |
927 |
make_unique(); //edit operation ahead |
928 |
if (idx < 0) |
929 |
idx += length(); |
930 |
|
931 |
if (idx < 0 || idx >= length()) |
932 |
invalid_index_error("insert()"); |
933 |
|
934 |
const int s_length = ::strlen(s); |
935 |
|
936 |
if (s_length > 0) { |
937 |
Data *data = new_data(length() + s_length); |
938 |
if (idx > 0) |
939 |
::memcpy(data->chars, chars(), idx); |
940 |
::memcpy(&data->chars[idx], s, s_length); |
941 |
::strcpy(&data->chars[idx+s_length], &chars()[idx]); |
942 |
replace_data(data); |
943 |
} |
944 |
|
945 |
return *this; |
946 |
} |
947 |
//========================================= |
948 |
|
949 |
GStr& GStr::append(const char* s) { |
950 |
make_unique(); //edit operation ahead |
951 |
int len=::strlen(s); |
952 |
int newlength=len+my_data->length; |
953 |
if (newlength<=my_data->length) return *this; |
954 |
if (my_data->length==0) { |
955 |
replace_data(len); |
956 |
::memcpy(my_data->chars, s, len); |
957 |
return *this; |
958 |
} |
959 |
//faster solution with realloc |
960 |
GREALLOC(my_data, sizeof(Data)+newlength); |
961 |
::strcpy(&my_data->chars[my_data->length], s); |
962 |
my_data->length=newlength; |
963 |
my_data->chars[newlength]='\0'; |
964 |
return *this; |
965 |
} |
966 |
|
967 |
GStr& GStr::append(const GStr& s) { |
968 |
return append((const char *)s); |
969 |
} |
970 |
|
971 |
|
972 |
GStr& GStr::upper() { |
973 |
make_unique(); //edit operation ahead |
974 |
for (register char *p = chrs(); *p; p++) |
975 |
*p = (char) toupper(*p); |
976 |
|
977 |
return *this; |
978 |
} |
979 |
|
980 |
//========================================= |
981 |
|
982 |
GStr& GStr::lower() { |
983 |
make_unique(); |
984 |
|
985 |
for (register char *p = chrs(); *p; p++) |
986 |
*p = (char) tolower(*p); |
987 |
|
988 |
return *this; |
989 |
} |
990 |
|
991 |
//========================================= |
992 |
|
993 |
int GStr::index(const char *s, int start_index) const { |
994 |
// A negative index specifies an index from the right of the string. |
995 |
if (strlen(s)>(size_t)length()) return -1; |
996 |
if (start_index < 0) |
997 |
start_index += length(); |
998 |
|
999 |
if (start_index < 0 || start_index >= length()) |
1000 |
invalid_index_error("index()"); |
1001 |
const char* idx = strstr(&chars()[start_index], s); |
1002 |
if (!idx) |
1003 |
return -1; |
1004 |
else |
1005 |
return idx - chars(); |
1006 |
} |
1007 |
|
1008 |
//========================================= |
1009 |
|
1010 |
int GStr::index(char c, int start_index) const { |
1011 |
// A negative index specifies an index from the right of the string. |
1012 |
if (length()==0) return -1; |
1013 |
if (start_index < 0) |
1014 |
start_index += length(); |
1015 |
|
1016 |
if (start_index < 0 || start_index >= length()) |
1017 |
invalid_index_error("index()"); |
1018 |
|
1019 |
|
1020 |
if (c == '\0') |
1021 |
return -1; |
1022 |
const char *idx=(char *) ::memchr(&chars()[start_index], c, |
1023 |
length()-start_index); |
1024 |
if (idx==NULL) |
1025 |
return -1; |
1026 |
else |
1027 |
return idx - chars(); |
1028 |
} |
1029 |
|
1030 |
int GStr::rindex(char c, int end_index) const { |
1031 |
if (c == 0 || length()==0 || end_index>=length()) return -1; |
1032 |
if (end_index<0) end_index=my_data->length-1; |
1033 |
for (int i=end_index;i>=0;i--) { |
1034 |
if (my_data->chars[i]==c) return i; |
1035 |
} |
1036 |
return -1; |
1037 |
} |
1038 |
|
1039 |
int GStr::rindex(const char* str, int end_index) const { |
1040 |
if (str==NULL || *str == '\0' || length()==0 || end_index>=length()) |
1041 |
return -1; |
1042 |
int slen=strlen(str); |
1043 |
if (end_index<0) end_index=my_data->length-1; |
1044 |
//end_index is the index of the right-side boundary |
1045 |
//the scanning starts at the end |
1046 |
if (end_index>=0 && end_index<slen-1) return -1; |
1047 |
for (int i=end_index-slen+1;i>=0;i--) { |
1048 |
if (memcmp((void*)(my_data->chars+i),(void*)str, slen)==0) |
1049 |
return i; |
1050 |
} |
1051 |
return -1; |
1052 |
} |
1053 |
|
1054 |
GStr GStr::split(const char* delim) { |
1055 |
/* splits "this" in two parts, at the first (left) |
1056 |
encounter of delim: |
1057 |
1st would stay in "this", |
1058 |
2nd part will be returned |
1059 |
as a new string! |
1060 |
*/ |
1061 |
GStr result; |
1062 |
int i=index(delim); |
1063 |
if (i>=0){ |
1064 |
result=substr(i+strlen(delim)); |
1065 |
cut(i); |
1066 |
return result; |
1067 |
} |
1068 |
return result; |
1069 |
} |
1070 |
|
1071 |
GStr GStr::split(char c) { |
1072 |
/* splits "this" in two parts, at the first (left) |
1073 |
encounter of delim: |
1074 |
1st would stay in "this", |
1075 |
2nd part will be returned |
1076 |
as a new string! |
1077 |
*/ |
1078 |
GStr result; |
1079 |
int i=index(c); |
1080 |
if (i>=0){ |
1081 |
result=substr(i+1); |
1082 |
cut(i); |
1083 |
return result; |
1084 |
} |
1085 |
return result; |
1086 |
} |
1087 |
|
1088 |
GStr GStr::splitr(const char* delim) { |
1089 |
GStr result; |
1090 |
int i=rindex(delim); |
1091 |
if (i>=0){ |
1092 |
result=substr(i+strlen(delim)); |
1093 |
cut(i); |
1094 |
return result; |
1095 |
} |
1096 |
return result; |
1097 |
} |
1098 |
|
1099 |
GStr GStr::splitr(char c) { |
1100 |
GStr result; |
1101 |
int i=rindex(c); |
1102 |
if (i>=0){ |
1103 |
result=substr(i+1); |
1104 |
cut(i); |
1105 |
return result; |
1106 |
} |
1107 |
return result; |
1108 |
} |
1109 |
|
1110 |
|
1111 |
void GStr::startTokenize(const char* delimiter, enTokenizeMode tokenizemode) { |
1112 |
GFREE(fTokenDelimiter); |
1113 |
if (delimiter) { |
1114 |
GMALLOC(fTokenDelimiter,strlen(delimiter)+1); |
1115 |
strcpy(fTokenDelimiter, delimiter); |
1116 |
} |
1117 |
fLastTokenStart=0; |
1118 |
fTokenizeMode=tokenizemode; |
1119 |
} |
1120 |
|
1121 |
bool GStr::nextToken(GStr& token) { |
1122 |
if (fTokenDelimiter==NULL) { |
1123 |
GError("GStr:: no token delimiter; use StartTokenize first\n"); |
1124 |
} |
1125 |
if (fLastTokenStart>=length()) {//no more |
1126 |
GFREE(fTokenDelimiter); |
1127 |
fLastTokenStart=0; |
1128 |
return false; |
1129 |
} |
1130 |
int dlen=strlen(fTokenDelimiter); |
1131 |
char* delpos=NULL; //delimiter position |
1132 |
int tlen=0; |
1133 |
if (fTokenizeMode==tkFullString) { //exact string as a delimiter |
1134 |
delpos=(char*)strstr(chars()+fLastTokenStart,fTokenDelimiter); |
1135 |
if (delpos==NULL) delpos=(char*)(chars()+length()); |
1136 |
//empty records may be returned |
1137 |
if (chars()+fLastTokenStart == delpos) { //empty token |
1138 |
fLastTokenStart=(delpos-chars())+dlen; |
1139 |
token=""; |
1140 |
return true; |
1141 |
} |
1142 |
else { |
1143 |
tlen=delpos-(chars()+fLastTokenStart); |
1144 |
token.replace_data(tlen); |
1145 |
::memcpy(token.chrs(), &chars()[fLastTokenStart], tlen); |
1146 |
fLastTokenStart=(delpos-chars())+dlen; |
1147 |
return true; |
1148 |
} |
1149 |
} |
1150 |
else { //tkCharSet - any character is a delimiter |
1151 |
//empty records are never returned ! |
1152 |
if (fLastTokenStart==0) {//skip any starting delimiters |
1153 |
delpos=(char*)chars(); |
1154 |
while (*delpos!='\0' && strchr(fTokenDelimiter, *delpos)!=NULL) |
1155 |
delpos++; |
1156 |
if (*delpos!='\0') |
1157 |
fLastTokenStart = delpos-chars(); |
1158 |
else { //only delimiters here,no tokens |
1159 |
GFREE(fTokenDelimiter); |
1160 |
fLastTokenStart=0; |
1161 |
return false; |
1162 |
} |
1163 |
} |
1164 |
//now fLastTokenStart is on a non-delimiter char |
1165 |
//GMessage("String at fLastTokenStart=%d is %s\n", fLastTokenStart, delpos); |
1166 |
char* token_end=NULL; |
1167 |
delpos=(char*)strpbrk(chars()+fLastTokenStart,fTokenDelimiter); |
1168 |
if (delpos==NULL) delpos=(char*)(chars()+length()); |
1169 |
token_end=delpos-1; |
1170 |
while (*delpos!='\0' && strchr(fTokenDelimiter, *delpos)!=NULL) |
1171 |
delpos++; //skip any other delimiters in the set! |
1172 |
//now we know that delpos is on the beginning of next token |
1173 |
tlen=(token_end-chars())-fLastTokenStart+1; |
1174 |
if (tlen==0) { |
1175 |
GFREE(fTokenDelimiter); |
1176 |
fLastTokenStart=0; |
1177 |
return false; |
1178 |
} |
1179 |
token.replace_data(tlen); |
1180 |
::memcpy(token.chrs(), &chars()[fLastTokenStart], tlen); |
1181 |
fLastTokenStart=delpos-chars(); |
1182 |
return true; |
1183 |
} |
1184 |
//return true; |
1185 |
} |
1186 |
|
1187 |
size_t GStr::read(FILE* stream, const char* delimiter, size_t bufsize) { |
1188 |
//read up to (and including) the given delimiter string |
1189 |
if (readbuf==NULL) { |
1190 |
GMALLOC(readbuf, bufsize); |
1191 |
readbufsize=bufsize; |
1192 |
} |
1193 |
else if (bufsize!=readbufsize) { |
1194 |
GFREE(readbuf); |
1195 |
if (bufsize>0) { |
1196 |
GMALLOC(readbuf, bufsize); |
1197 |
} |
1198 |
readbufsize=bufsize; |
1199 |
} |
1200 |
if (bufsize==0) { |
1201 |
replace_data(0); |
1202 |
return 0; //clear the string and free the buffer |
1203 |
} |
1204 |
size_t numread; |
1205 |
size_t acc_len=0; //accumulated length |
1206 |
int seplen=strlen(delimiter); |
1207 |
void* p=NULL; |
1208 |
Data *data = new_data(0); |
1209 |
do { |
1210 |
numread=fread(readbuf, 1, bufsize, stream); |
1211 |
if (numread) { |
1212 |
p=Gmemscan(readbuf, bufsize, (void*) delimiter, seplen); |
1213 |
if (p!=NULL) {//found the delimiter |
1214 |
//position the stream after it |
1215 |
int l = (char*)p-(char*)readbuf; |
1216 |
fseek(stream, l+seplen-numread, SEEK_CUR); |
1217 |
numread=l+seplen; |
1218 |
} |
1219 |
else {//not found, go back if not eof |
1220 |
if (numread==bufsize) { |
1221 |
fseek(stream, -seplen, SEEK_CUR); //check if this works! |
1222 |
numread-=seplen; |
1223 |
} |
1224 |
} |
1225 |
if (data==&null_data) { |
1226 |
data=new_data(numread); |
1227 |
::memcpy(data->chars, readbuf, numread); |
1228 |
acc_len+=numread; |
1229 |
} |
1230 |
else { |
1231 |
GREALLOC(data, sizeof(Data)+acc_len+numread); |
1232 |
memcpy(&data->chars[acc_len], readbuf, numread); |
1233 |
acc_len+=numread; |
1234 |
data->length=acc_len; |
1235 |
data->chars[acc_len]='\0'; |
1236 |
} |
1237 |
} //if something read |
1238 |
} while (p==NULL && numread!=0); |
1239 |
replace_data(data); |
1240 |
return acc_len; |
1241 |
} |
1242 |
|
1243 |
|
1244 |
int GStr::asInt(int base /*=10 */) { |
1245 |
return strtol(text(), NULL, base); |
1246 |
} |
1247 |
|
1248 |
bool GStr::asInt(int& r, int base) { |
1249 |
errno=0; |
1250 |
char*endptr; |
1251 |
long val=strtol(text(), &endptr, base); |
1252 |
if (errno!=0) return false; |
1253 |
if (endptr == text()) return false; |
1254 |
/* If we got here, strtol() successfully parsed a number */ |
1255 |
r=val; |
1256 |
return true; |
1257 |
} |
1258 |
|
1259 |
double GStr::asReal() { |
1260 |
return strtod(text(), NULL); |
1261 |
} |
1262 |
|
1263 |
bool GStr::asReal(double& r) { |
1264 |
errno=0; |
1265 |
char* endptr; |
1266 |
double val=strtod(text(), &endptr); |
1267 |
if (errno!=0) return false; |
1268 |
if (endptr == text()) return false; //no digits to parse |
1269 |
r=val; |
1270 |
return true; |
1271 |
} |
1272 |
|
1273 |
|
1274 |
int GStr::peelInt() const { |
1275 |
if (is_empty()) return 0; |
1276 |
char buf[24]; |
1277 |
bool started=false; |
1278 |
int j=0; |
1279 |
int i; |
1280 |
for (i=0;i<length();i++) { |
1281 |
if (started) { |
1282 |
if (isdigit(my_data->chars[i])) j++; //set coord |
1283 |
else break; //finished |
1284 |
} |
1285 |
else |
1286 |
if (isdigit(my_data->chars[i])) { |
1287 |
j++; started=true; |
1288 |
} |
1289 |
} |
1290 |
if (j>0) { |
1291 |
strncpy(buf, &my_data->chars[i-j], j); |
1292 |
buf[j]='\0'; |
1293 |
return strtol(buf, NULL, 10); |
1294 |
} |
1295 |
return 0; |
1296 |
} |
1297 |
|
1298 |
int GStr::peelIntR() const { |
1299 |
if (is_empty()) return 0; |
1300 |
char buf[24]; |
1301 |
bool started=false; |
1302 |
int j=0; |
1303 |
int i; |
1304 |
for (i=length()-1;i>=0;i--) { |
1305 |
if (started) { |
1306 |
if (isdigit(my_data->chars[i])) j++; //set length |
1307 |
else break; //finished |
1308 |
} |
1309 |
else |
1310 |
if (isdigit(my_data->chars[i])) { |
1311 |
j++; started=true; |
1312 |
} |
1313 |
} |
1314 |
if (j>0) { |
1315 |
strncpy(buf, &my_data->chars[i+1], j); |
1316 |
buf[j]='\0'; |
1317 |
return strtol(buf, NULL, 10); |
1318 |
} |
1319 |
return 0; |
1320 |
} |
1321 |
|
1322 |
GStr GStr::to(char c) { //return the first part up to first occurence of c |
1323 |
int i=index(c); |
1324 |
if (i>=0) return substr(0,i); |
1325 |
else return (*this); |
1326 |
} |
1327 |
//or whole string if c not found |
1328 |
GStr GStr::from(char c) { //same as to, but starting from the right side |
1329 |
int i=rindex(c); |
1330 |
if (i>=0) return substr(i+1); |
1331 |
else return (*this); |
1332 |
} |
1333 |
|
1334 |
int GStr::count(char c){ |
1335 |
//return the number of occurences of char c within the string |
1336 |
int result=0; |
1337 |
for (int i=0;i<length();i++) |
1338 |
if (my_data->chars[i]==c) result++; |
1339 |
return result; |
1340 |
} |
1341 |
|
1342 |
//========================================= |
1343 |
|
1344 |
void GStr::invalid_args_error(const char *fname) { |
1345 |
GError("GStr:: %s - invalid arguments\n", fname); |
1346 |
} |
1347 |
|
1348 |
//**************************************************************************** |
1349 |
|
1350 |
void GStr::invalid_index_error(const char *fname) { |
1351 |
GError("GStr:: %s - invalid index\n", fname); |
1352 |
} |
1353 |
//**************************************************************************** |