2 * string-icalls.c: String internal calls for the corlib
5 * Patrik Torstensson (patrik.torstensson@labs2.com)
6 * Duncan Mak (duncan@ximian.com)
8 * (C) 2001 Ximian, Inc.
15 #include <mono/metadata/string-icalls.h>
16 #include <mono/metadata/class-internals.h>
17 #include <mono/metadata/appdomain.h>
18 #include <mono/metadata/tabledefs.h>
19 #include <mono/metadata/loader.h>
20 #include <mono/metadata/object.h>
21 #include <mono/metadata/unicode.h>
22 #include <mono/metadata/exception.h>
23 #include <mono/metadata/debug-helpers.h>
25 /* Internal helper methods */
28 string_icall_is_in_array (MonoArray *chars, gint32 arraylength, gunichar2 chr);
31 empty_string (MonoDomain *domain)
33 MonoVTable *vtable = mono_class_vtable (domain, mono_defaults.string_class);
35 static MonoClassField *empty_field = NULL;
38 MonoClassField *field;
42 while ((field = mono_class_get_fields (mono_defaults.string_class, &iter))) {
43 if (!strcmp (field->name, "Empty"))
51 mono_field_static_get_value (vtable, empty_field, &o);
53 return (MonoString*)o;
57 ves_icall_System_String_ctor_charp (gpointer dummy, gunichar2 *value)
64 domain = mono_domain_get ();
69 for (i = 0; *(value + i) != '\0'; i++);
73 return mono_string_new_utf16 (domain, value, length);
77 ves_icall_System_String_ctor_char_int (gpointer dummy, gunichar2 value, gint32 count)
87 mono_raise_exception (mono_get_exception_argument_out_of_range ("count"));
89 domain = mono_domain_get ();
90 res = mono_string_new_size (domain, count);
92 chars = mono_string_chars (res);
93 for (i = 0; i < count; i++)
100 ves_icall_System_String_ctor_charp_int_int (gpointer dummy, gunichar2 *value, gint32 sindex, gint32 length)
107 domain = mono_domain_get ();
109 if ((value == NULL) && (length != 0))
110 mono_raise_exception (mono_get_exception_argument_out_of_range ("Out of range"));
112 if ((sindex < 0) || (length < 0))
113 mono_raise_exception (mono_get_exception_argument_out_of_range ("Out of range"));
116 return empty_string (domain);
118 begin = (gunichar2 *) (value + sindex);
120 return mono_string_new_utf16 (domain, begin, length);
124 ves_icall_System_String_ctor_sbytep (gpointer dummy, gint8 *value)
130 domain = mono_domain_get ();
133 return empty_string (domain);
135 return mono_string_new (domain, (const char *) value);
139 ves_icall_System_String_ctor_sbytep_int_int (gpointer dummy, gint8 *value, gint32 sindex, gint32 length)
149 domain = mono_domain_get ();
151 if ((value == NULL) && (length != 0))
152 mono_raise_exception (mono_get_exception_argument_out_of_range ("Out of range"));
154 if ((sindex < 0) || (length < 0))
155 mono_raise_exception (mono_get_exception_argument_out_of_range ("Out of range"));
157 begin = (guchar *) (value + sindex);
158 res = mono_string_new_size (domain, length);
159 chars = mono_string_chars (res);
160 for (i = 0; i < length; ++i)
161 chars [i] = begin [i];
167 ves_icall_System_String_ctor_chara (gpointer dummy, MonoArray *value)
173 domain = mono_domain_get ();
176 return mono_string_new_utf16 (domain, NULL, 0);
178 return mono_string_new_utf16 (domain, (gunichar2 *) mono_array_addr(value, gunichar2, 0), value->max_length);
182 ves_icall_System_String_ctor_chara_int_int (gpointer dummy, MonoArray *value,
183 gint32 sindex, gint32 length)
190 mono_raise_exception (mono_get_exception_argument_null ("value"));
192 mono_raise_exception (mono_get_exception_argument_out_of_range ("startIndex"));
194 mono_raise_exception (mono_get_exception_argument_out_of_range ("length"));
195 if (sindex + length > mono_array_length (value))
196 mono_raise_exception (mono_get_exception_argument_out_of_range ("Out of range"));
198 domain = mono_domain_get ();
200 return mono_string_new_utf16 (domain, (gunichar2 *) mono_array_addr(value, gunichar2, sindex), length);
204 ves_icall_System_String_ctor_encoding (gpointer dummy, gint8 *value, gint32 sindex,
205 gint32 length, MonoObject *enc)
210 MonoDomain *domain = mono_domain_get ();
211 MonoMethod *get_string;
216 if ((value == NULL) || (length == 0))
217 return mono_string_new_size (mono_domain_get (), 0);
219 mono_raise_exception (mono_get_exception_argument_null ("enc"));
221 mono_raise_exception (mono_get_exception_argument_out_of_range ("startIndex"));
223 mono_raise_exception (mono_get_exception_argument_out_of_range ("length"));
225 arr = mono_array_new (domain, mono_defaults.byte_class, length);
226 memcpy (mono_array_addr (arr, guint8*, 0), value + sindex, length);
228 get_string = mono_class_get_method_from_name (enc->vtable->klass, "GetString", 1);
230 s = (MonoString*)mono_runtime_invoke (get_string, enc, args, &exc);
232 mono_raise_exception (mono_get_exception_argument ("", "Unable to decode the array into a valid string."));
238 ves_icall_System_String_InternalJoin (MonoString *separator, MonoArray * value, gint32 sindex, gint32 count)
253 insert = mono_string_chars(separator);
254 insertlen = mono_string_length(separator);
257 for (pos = sindex; pos != sindex + count; pos++) {
258 current = mono_array_get (value, MonoString *, pos);
260 length += mono_string_length (current);
262 if (pos < sindex + count - 1)
266 ret = mono_string_new_size( mono_domain_get (), length);
267 dest = mono_string_chars(ret);
270 for (pos = sindex; pos != sindex + count; pos++) {
271 current = mono_array_get (value, MonoString *, pos);
272 if (current != NULL) {
273 src = mono_string_chars (current);
274 srclen = mono_string_length (current);
276 memcpy (dest + destpos, src, srclen * sizeof(gunichar2));
280 if (pos < sindex + count - 1) {
281 memcpy(dest + destpos, insert, insertlen * sizeof(gunichar2));
282 destpos += insertlen;
290 ves_icall_System_String_InternalInsert (MonoString *me, gint32 sindex, MonoString *value)
294 gunichar2 *insertsrc;
301 src = mono_string_chars(me);
302 srclen = mono_string_length(me);
304 insertsrc = mono_string_chars(value);
305 insertlen = mono_string_length(value);
307 ret = mono_string_new_size( mono_domain_get (), srclen + insertlen);
308 dest = mono_string_chars(ret);
310 memcpy(dest, src, sindex * sizeof(gunichar2));
311 memcpy(dest + sindex, insertsrc, insertlen * sizeof(gunichar2));
312 memcpy(dest + sindex + insertlen, src + sindex, (srclen - sindex) * sizeof(gunichar2));
318 ves_icall_System_String_InternalReplace_Char (MonoString *me, gunichar2 oldChar, gunichar2 newChar)
327 src = mono_string_chars(me);
328 srclen = mono_string_length(me);
330 ret = mono_string_new_size( mono_domain_get (), srclen);
331 dest = mono_string_chars(ret);
333 for (i = 0; i != srclen; i++) {
334 if (src[i] == oldChar)
344 ves_icall_System_String_InternalRemove (MonoString *me, gint32 sindex, gint32 count)
353 srclen = mono_string_length(me);
354 ret = mono_string_new_size( mono_domain_get (), srclen - count);
356 src = mono_string_chars(me);
357 dest = mono_string_chars(ret);
359 memcpy(dest, src, sindex * sizeof(gunichar2));
360 memcpy(dest + sindex, src + sindex + count, (srclen - count - sindex) * sizeof(gunichar2));
366 ves_icall_System_String_InternalCopyTo (MonoString *me, gint32 sindex, MonoArray *dest, gint32 dindex, gint32 count)
368 gunichar2 *destptr = (gunichar2 *) mono_array_addr(dest, gunichar2, dindex);
369 gunichar2 *src = mono_string_chars(me);
373 memcpy(destptr, src + sindex, sizeof(gunichar2) * count);
377 ves_icall_System_String_InternalSplit (MonoString *me, MonoArray *separator, gint32 count)
382 gint32 arrsize, srcsize, splitsize;
383 gint32 i, lastpos, arrpos;
385 gunichar2 *tmpstrptr;
391 src = mono_string_chars(me);
392 srcsize = mono_string_length(me);
393 arrsize = mono_array_length(separator);
395 cmpchar = mono_array_get(separator, gunichar2, 0);
398 for (i = 0; i != srcsize && splitsize < count; i++) {
399 if (string_icall_is_in_array(separator, arrsize, src[i]))
406 /* if no split chars found return the string */
407 if (splitsize == 0) {
408 retarr = mono_array_new(mono_domain_get(), mono_get_string_class (), 1);
409 mono_array_set(retarr, MonoString *, 0, me);
414 if (splitsize != count)
417 retarr = mono_array_new(mono_domain_get(), mono_get_string_class (), splitsize);
418 for (i = 0; i != srcsize && arrpos != count; i++) {
419 if (string_icall_is_in_array(separator, arrsize, src[i])) {
420 if (arrpos == count - 1)
421 tmpstrsize = srcsize - lastpos;
423 tmpstrsize = i - lastpos;
425 tmpstr = mono_string_new_size( mono_domain_get (), tmpstrsize);
426 tmpstrptr = mono_string_chars(tmpstr);
428 memcpy(tmpstrptr, src + lastpos, tmpstrsize * sizeof(gunichar2));
429 mono_array_set(retarr, MonoString *, arrpos, tmpstr);
435 if (arrpos < count) {
436 tmpstrsize = srcsize - lastpos;
437 tmpstr = mono_string_new_size( mono_domain_get (), tmpstrsize);
438 tmpstrptr = mono_string_chars(tmpstr);
440 memcpy(tmpstrptr, src + lastpos, tmpstrsize * sizeof(gunichar2));
441 mono_array_set(retarr, MonoString *, arrpos, tmpstr);
448 string_icall_is_in_array (MonoArray *chars, gint32 arraylength, gunichar2 chr)
453 for (arrpos = 0; arrpos != arraylength; arrpos++) {
454 cmpchar = mono_array_get(chars, gunichar2, arrpos);
463 ves_icall_System_String_InternalTrim (MonoString *me, MonoArray *chars, gint32 typ)
466 gunichar2 *src, *dest;
467 gint32 srclen, newlen, arrlen;
468 gint32 i, lenfirst, lenlast;
472 srclen = mono_string_length(me);
473 src = mono_string_chars(me);
474 arrlen = mono_array_length(chars);
479 if (0 == typ || 1 == typ) {
480 for (i = 0; i != srclen; i++) {
481 if (string_icall_is_in_array(chars, arrlen, src[i]))
488 if (0 == typ || 2 == typ) {
489 for (i = srclen - 1; i > lenfirst - 1; i--) {
490 if (string_icall_is_in_array(chars, arrlen, src[i]))
497 newlen = srclen - lenfirst - lenlast;
498 if (newlen == srclen)
501 ret = mono_string_new_size( mono_domain_get (), newlen);
502 dest = mono_string_chars(ret);
504 memcpy(dest, src + lenfirst, newlen *sizeof(gunichar2));
510 ves_icall_System_String_InternalIndexOfAny (MonoString *me, MonoArray *arr, gint32 sindex, gint32 count)
519 arraysize = mono_array_length(arr);
520 src = mono_string_chars(me);
522 for (pos = sindex; pos != count + sindex; pos++) {
523 for (loop = 0; loop != arraysize; loop++)
524 if ( src [pos] == mono_array_get(arr, gunichar2, loop) )
532 ves_icall_System_String_InternalLastIndexOf_Char (MonoString *me, gunichar2 value, gint32 sindex, gint32 count)
539 src = mono_string_chars(me);
540 for (pos = sindex; pos > sindex - count; pos--) {
541 if (src [pos] == value)
549 ves_icall_System_String_InternalLastIndexOf_Str (MonoString *me, MonoString *value, gint32 sindex, gint32 count)
558 lencmpstr = mono_string_length(value);
560 src = mono_string_chars(me);
561 cmpstr = mono_string_chars(value);
563 for (pos = sindex - lencmpstr + 1; pos > sindex - count; pos--) {
564 if (0 == memcmp(src + pos, cmpstr, lencmpstr * sizeof(gunichar2)))
572 ves_icall_System_String_InternalLastIndexOfAny (MonoString *me, MonoArray *anyOf, gint32 sindex, gint32 count)
581 arraysize = mono_array_length(anyOf);
582 src = mono_string_chars(me);
584 for (pos = sindex; pos > sindex - count; pos--) {
585 for (loop = 0; loop != arraysize; loop++)
586 if ( src [pos] == mono_array_get(anyOf, gunichar2, loop) )
594 ves_icall_System_String_InternalPad (MonoString *me, gint32 width, gunichar2 chr, MonoBoolean right)
605 srclen = mono_string_length(me);
606 src = mono_string_chars(me);
608 ret = mono_string_new_size( mono_domain_get (), width);
609 dest = mono_string_chars(ret);
610 fillcount = width - srclen;
613 memcpy(dest, src, srclen * sizeof(gunichar2));
614 for (i = srclen; i != width; i++)
621 for (i = 0; i != fillcount; i++)
624 memcpy(dest + fillcount, src, srclen * sizeof(gunichar2));
630 ves_icall_System_String_InternalAllocateStr (gint32 length)
634 return mono_string_new_size(mono_domain_get (), length);
638 ves_icall_System_String_InternalStrcpy_Str (MonoString *dest, gint32 destPos, MonoString *src)
645 srcptr = mono_string_chars (src);
646 destptr = mono_string_chars (dest);
648 g_memmove (destptr + destPos, srcptr, mono_string_length(src) * sizeof(gunichar2));
652 ves_icall_System_String_InternalStrcpy_StrN (MonoString *dest, gint32 destPos, MonoString *src, gint32 startPos, gint32 count)
659 srcptr = mono_string_chars (src);
660 destptr = mono_string_chars (dest);
661 g_memmove (destptr + destPos, srcptr + startPos, count * sizeof(gunichar2));
665 ves_icall_System_String_InternalStrcpy_Chars (MonoString *dest, gint32 destPos, MonoArray *src)
672 srcptr = mono_array_addr (src, gunichar2, 0);
673 destptr = mono_string_chars (dest);
675 g_memmove (destptr + destPos, srcptr, mono_array_length (src) * sizeof(gunichar2));
679 ves_icall_System_String_InternalStrcpy_CharsN (MonoString *dest, gint32 destPos, MonoArray *src, gint32 startPos, gint32 count)
686 srcptr = mono_array_addr (src, gunichar2, 0);
687 destptr = mono_string_chars (dest);
689 g_memmove (destptr + destPos, srcptr + startPos, count * sizeof(gunichar2));
693 ves_icall_System_String_InternalIntern (MonoString *str)
697 return mono_string_intern(str);
701 ves_icall_System_String_InternalIsInterned (MonoString *str)
705 return mono_string_is_interned(str);
709 ves_icall_System_String_get_Chars (MonoString *me, gint32 idx)
713 if ((idx < 0) || (idx >= mono_string_length (me)))
714 mono_raise_exception (mono_get_exception_index_out_of_range ());
715 return mono_string_chars(me)[idx];
719 ves_icall_System_String_InternalCharCopy (gunichar2 *src, gunichar2 *dest, gint32 count)
723 memcpy (dest, src, sizeof (gunichar2) * count);