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 ();
67 return empty_string (domain);
69 for (i = 0; *(value + i) != '\0'; i++);
72 return mono_string_new_utf16 (domain, value, length);
76 ves_icall_System_String_ctor_char_int (gpointer dummy, gunichar2 value, gint32 count)
86 mono_raise_exception (mono_get_exception_argument_out_of_range ("count"));
88 domain = mono_domain_get ();
89 res = mono_string_new_size (domain, count);
91 chars = mono_string_chars (res);
92 for (i = 0; i < count; i++)
99 ves_icall_System_String_ctor_charp_int_int (gpointer dummy, gunichar2 *value, gint32 sindex, gint32 length)
106 domain = mono_domain_get ();
108 if ((value == NULL) && (length != 0))
109 mono_raise_exception (mono_get_exception_argument_out_of_range ("Out of range"));
111 if ((sindex < 0) || (length < 0))
112 mono_raise_exception (mono_get_exception_argument_out_of_range ("Out of range"));
115 return empty_string (domain);
117 begin = (gunichar2 *) (value + sindex);
119 return mono_string_new_utf16 (domain, begin, length);
123 ves_icall_System_String_ctor_sbytep (gpointer dummy, gint8 *value)
129 domain = mono_domain_get ();
132 return empty_string (domain);
134 return mono_string_new (domain, (const char *) value);
138 ves_icall_System_String_ctor_sbytep_int_int (gpointer dummy, gint8 *value, gint32 sindex, gint32 length)
148 domain = mono_domain_get ();
150 if ((value == NULL) && (length != 0))
151 mono_raise_exception (mono_get_exception_argument_out_of_range ("Out of range"));
153 if ((sindex < 0) || (length < 0))
154 mono_raise_exception (mono_get_exception_argument_out_of_range ("Out of range"));
156 begin = (guchar *) (value + sindex);
157 res = mono_string_new_size (domain, length);
158 chars = mono_string_chars (res);
159 for (i = 0; i < length; ++i)
160 chars [i] = begin [i];
166 ves_icall_System_String_ctor_chara (gpointer dummy, MonoArray *value)
172 domain = mono_domain_get ();
175 return mono_string_new_utf16 (domain, NULL, 0);
177 return mono_string_new_utf16 (domain, (gunichar2 *) mono_array_addr(value, gunichar2, 0), value->max_length);
181 ves_icall_System_String_ctor_chara_int_int (gpointer dummy, MonoArray *value,
182 gint32 sindex, gint32 length)
189 mono_raise_exception (mono_get_exception_argument_null ("value"));
191 mono_raise_exception (mono_get_exception_argument_out_of_range ("startIndex"));
193 mono_raise_exception (mono_get_exception_argument_out_of_range ("length"));
194 if (sindex + length > mono_array_length (value))
195 mono_raise_exception (mono_get_exception_argument_out_of_range ("Out of range"));
197 domain = mono_domain_get ();
199 return mono_string_new_utf16 (domain, (gunichar2 *) mono_array_addr(value, gunichar2, sindex), length);
203 ves_icall_System_String_ctor_encoding (gpointer dummy, gint8 *value, gint32 sindex,
204 gint32 length, MonoObject *enc)
209 MonoDomain *domain = mono_domain_get ();
210 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 /* Find the System.Text.Encoding class */
229 for (klass = enc->vtable->klass; klass->parent->parent != NULL; klass = klass->parent)
232 get_string = mono_class_get_method_from_name (klass, "GetString", 1);
234 s = (MonoString*)mono_runtime_invoke (get_string, enc, args, &exc);
236 mono_raise_exception (mono_get_exception_argument ("", "Unable to decode the array into a valid string."));
241 /* This function is redirected to String.CreateString ()
242 by mono_marshal_get_native_wrapper () */
244 ves_icall_System_String_ctor_RedirectToCreateString (void)
246 g_assert_not_reached ();
250 ves_icall_System_String_InternalJoin (MonoString *separator, MonoArray * value, gint32 sindex, gint32 count)
265 insert = mono_string_chars(separator);
266 insertlen = mono_string_length(separator);
269 for (pos = sindex; pos != sindex + count; pos++) {
270 current = mono_array_get (value, MonoString *, pos);
272 length += mono_string_length (current);
274 if (pos < sindex + count - 1)
278 ret = mono_string_new_size( mono_domain_get (), length);
279 dest = mono_string_chars(ret);
282 for (pos = sindex; pos != sindex + count; pos++) {
283 current = mono_array_get (value, MonoString *, pos);
284 if (current != NULL) {
285 src = mono_string_chars (current);
286 srclen = mono_string_length (current);
288 memcpy (dest + destpos, src, srclen * sizeof(gunichar2));
292 if (pos < sindex + count - 1) {
293 memcpy(dest + destpos, insert, insertlen * sizeof(gunichar2));
294 destpos += insertlen;
302 ves_icall_System_String_InternalInsert (MonoString *me, gint32 sindex, MonoString *value)
306 gunichar2 *insertsrc;
313 src = mono_string_chars(me);
314 srclen = mono_string_length(me);
316 insertsrc = mono_string_chars(value);
317 insertlen = mono_string_length(value);
319 ret = mono_string_new_size( mono_domain_get (), srclen + insertlen);
320 dest = mono_string_chars(ret);
322 memcpy(dest, src, sindex * sizeof(gunichar2));
323 memcpy(dest + sindex, insertsrc, insertlen * sizeof(gunichar2));
324 memcpy(dest + sindex + insertlen, src + sindex, (srclen - sindex) * sizeof(gunichar2));
330 ves_icall_System_String_InternalReplace_Char (MonoString *me, gunichar2 oldChar, gunichar2 newChar)
339 src = mono_string_chars(me);
340 srclen = mono_string_length(me);
342 ret = mono_string_new_size( mono_domain_get (), srclen);
343 dest = mono_string_chars(ret);
345 for (i = 0; i != srclen; i++) {
346 if (src[i] == oldChar)
356 ves_icall_System_String_InternalRemove (MonoString *me, gint32 sindex, gint32 count)
365 srclen = mono_string_length(me);
366 ret = mono_string_new_size( mono_domain_get (), srclen - count);
368 src = mono_string_chars(me);
369 dest = mono_string_chars(ret);
371 memcpy(dest, src, sindex * sizeof(gunichar2));
372 memcpy(dest + sindex, src + sindex + count, (srclen - count - sindex) * sizeof(gunichar2));
378 ves_icall_System_String_InternalCopyTo (MonoString *me, gint32 sindex, MonoArray *dest, gint32 dindex, gint32 count)
380 gunichar2 *destptr = (gunichar2 *) mono_array_addr(dest, gunichar2, dindex);
381 gunichar2 *src = mono_string_chars(me);
385 memcpy(destptr, src + sindex, sizeof(gunichar2) * count);
389 ves_icall_System_String_InternalSplit (MonoString *me, MonoArray *separator, gint32 count)
394 gint32 arrsize, srcsize, splitsize;
395 gint32 i, lastpos, arrpos;
397 gunichar2 *tmpstrptr;
403 src = mono_string_chars(me);
404 srcsize = mono_string_length(me);
405 arrsize = mono_array_length(separator);
407 cmpchar = mono_array_get(separator, gunichar2, 0);
410 for (i = 0; i != srcsize && splitsize < count; i++) {
411 if (string_icall_is_in_array(separator, arrsize, src[i]))
418 /* if no split chars found return the string */
419 if (splitsize == 0) {
420 retarr = mono_array_new(mono_domain_get(), mono_get_string_class (), 1);
421 mono_array_setref (retarr, 0, me);
426 if (splitsize != count)
429 retarr = mono_array_new(mono_domain_get(), mono_get_string_class (), splitsize);
430 for (i = 0; i != srcsize && arrpos != count; i++) {
431 if (string_icall_is_in_array(separator, arrsize, src[i])) {
432 if (arrpos == count - 1)
433 tmpstrsize = srcsize - lastpos;
435 tmpstrsize = i - 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_setref (retarr, arrpos, tmpstr);
447 if (arrpos < count) {
448 tmpstrsize = srcsize - lastpos;
449 tmpstr = mono_string_new_size( mono_domain_get (), tmpstrsize);
450 tmpstrptr = mono_string_chars(tmpstr);
452 memcpy(tmpstrptr, src + lastpos, tmpstrsize * sizeof(gunichar2));
453 mono_array_setref (retarr, arrpos, tmpstr);
460 string_icall_is_in_array (MonoArray *chars, gint32 arraylength, gunichar2 chr)
465 for (arrpos = 0; arrpos != arraylength; arrpos++) {
466 cmpchar = mono_array_get(chars, gunichar2, arrpos);
475 ves_icall_System_String_InternalTrim (MonoString *me, MonoArray *chars, gint32 typ)
478 gunichar2 *src, *dest;
479 gint32 srclen, newlen, arrlen;
480 gint32 i, lenfirst, lenlast;
484 srclen = mono_string_length(me);
485 src = mono_string_chars(me);
486 arrlen = mono_array_length(chars);
491 if (0 == typ || 1 == typ) {
492 for (i = 0; i != srclen; i++) {
493 if (string_icall_is_in_array(chars, arrlen, src[i]))
500 if (0 == typ || 2 == typ) {
501 for (i = srclen - 1; i > lenfirst - 1; i--) {
502 if (string_icall_is_in_array(chars, arrlen, src[i]))
509 newlen = srclen - lenfirst - lenlast;
510 if (newlen == srclen)
513 ret = mono_string_new_size( mono_domain_get (), newlen);
514 dest = mono_string_chars(ret);
516 memcpy(dest, src + lenfirst, newlen *sizeof(gunichar2));
522 ves_icall_System_String_InternalIndexOfAny (MonoString *me, MonoArray *arr, gint32 sindex, gint32 count)
531 arraysize = mono_array_length(arr);
532 src = mono_string_chars(me);
534 for (pos = sindex; pos != count + sindex; pos++) {
535 for (loop = 0; loop != arraysize; loop++)
536 if ( src [pos] == mono_array_get(arr, gunichar2, loop) )
544 ves_icall_System_String_InternalLastIndexOf_Char (MonoString *me, gunichar2 value, gint32 sindex, gint32 count)
551 src = mono_string_chars(me);
552 for (pos = sindex; pos > sindex - count; pos--) {
553 if (src [pos] == value)
561 ves_icall_System_String_InternalLastIndexOf_Str (MonoString *me, MonoString *value, gint32 sindex, gint32 count)
570 lencmpstr = mono_string_length(value);
572 src = mono_string_chars(me);
573 cmpstr = mono_string_chars(value);
575 for (pos = sindex - lencmpstr + 1; pos > sindex - count; pos--) {
576 if (0 == memcmp(src + pos, cmpstr, lencmpstr * sizeof(gunichar2)))
584 ves_icall_System_String_InternalLastIndexOfAny (MonoString *me, MonoArray *anyOf, gint32 sindex, gint32 count)
593 arraysize = mono_array_length(anyOf);
594 src = mono_string_chars(me);
596 for (pos = sindex; pos > sindex - count; pos--) {
597 for (loop = 0; loop != arraysize; loop++)
598 if ( src [pos] == mono_array_get(anyOf, gunichar2, loop) )
606 ves_icall_System_String_InternalPad (MonoString *me, gint32 width, gunichar2 chr, MonoBoolean right)
617 srclen = mono_string_length(me);
618 src = mono_string_chars(me);
620 ret = mono_string_new_size( mono_domain_get (), width);
621 dest = mono_string_chars(ret);
622 fillcount = width - srclen;
625 memcpy(dest, src, srclen * sizeof(gunichar2));
626 for (i = srclen; i != width; i++)
633 for (i = 0; i != fillcount; i++)
636 memcpy(dest + fillcount, src, srclen * sizeof(gunichar2));
642 ves_icall_System_String_InternalAllocateStr (gint32 length)
646 return mono_string_new_size(mono_domain_get (), length);
650 ves_icall_System_String_InternalStrcpy_Str (MonoString *dest, gint32 destPos, MonoString *src)
657 srcptr = mono_string_chars (src);
658 destptr = mono_string_chars (dest);
660 g_memmove (destptr + destPos, srcptr, mono_string_length(src) * sizeof(gunichar2));
664 ves_icall_System_String_InternalStrcpy_StrN (MonoString *dest, gint32 destPos, MonoString *src, gint32 startPos, gint32 count)
671 srcptr = mono_string_chars (src);
672 destptr = mono_string_chars (dest);
673 g_memmove (destptr + destPos, srcptr + startPos, count * sizeof(gunichar2));
677 ves_icall_System_String_InternalStrcpy_Chars (MonoString *dest, gint32 destPos, MonoArray *src)
684 srcptr = mono_array_addr (src, gunichar2, 0);
685 destptr = mono_string_chars (dest);
687 g_memmove (destptr + destPos, srcptr, mono_array_length (src) * sizeof(gunichar2));
691 ves_icall_System_String_InternalStrcpy_CharsN (MonoString *dest, gint32 destPos, MonoArray *src, gint32 startPos, gint32 count)
698 srcptr = mono_array_addr (src, gunichar2, 0);
699 destptr = mono_string_chars (dest);
701 g_memmove (destptr + destPos, srcptr + startPos, count * sizeof(gunichar2));
705 ves_icall_System_String_InternalIntern (MonoString *str)
709 return mono_string_intern(str);
713 ves_icall_System_String_InternalIsInterned (MonoString *str)
717 return mono_string_is_interned(str);
721 ves_icall_System_String_get_Chars (MonoString *me, gint32 idx)
725 if ((idx < 0) || (idx >= mono_string_length (me)))
726 mono_raise_exception (mono_get_exception_index_out_of_range ());
727 return mono_string_chars(me)[idx];
731 ves_icall_System_String_InternalCharCopy (gunichar2 *src, gunichar2 *dest, gint32 count)
735 memcpy (dest, src, sizeof (gunichar2) * count);