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;
217 if ((value == NULL) || (length == 0))
218 return mono_string_new_size (mono_domain_get (), 0);
220 mono_raise_exception (mono_get_exception_argument_null ("enc"));
222 mono_raise_exception (mono_get_exception_argument_out_of_range ("startIndex"));
224 mono_raise_exception (mono_get_exception_argument_out_of_range ("length"));
226 arr = mono_array_new (domain, mono_defaults.byte_class, length);
227 memcpy (mono_array_addr (arr, guint8, 0), value + sindex, length);
229 /* Find the System.Text.Encoding class */
230 for (klass = enc->vtable->klass; klass->parent->parent != NULL; klass = klass->parent)
233 get_string = mono_class_get_method_from_name (klass, "GetString", 1);
235 s = (MonoString*)mono_runtime_invoke (get_string, enc, args, &exc);
237 mono_raise_exception (mono_get_exception_argument ("", "Unable to decode the array into a valid string."));
243 ves_icall_System_String_InternalJoin (MonoString *separator, MonoArray * value, gint32 sindex, gint32 count)
258 insert = mono_string_chars(separator);
259 insertlen = mono_string_length(separator);
262 for (pos = sindex; pos != sindex + count; pos++) {
263 current = mono_array_get (value, MonoString *, pos);
265 length += mono_string_length (current);
267 if (pos < sindex + count - 1)
271 ret = mono_string_new_size( mono_domain_get (), length);
272 dest = mono_string_chars(ret);
275 for (pos = sindex; pos != sindex + count; pos++) {
276 current = mono_array_get (value, MonoString *, pos);
277 if (current != NULL) {
278 src = mono_string_chars (current);
279 srclen = mono_string_length (current);
281 memcpy (dest + destpos, src, srclen * sizeof(gunichar2));
285 if (pos < sindex + count - 1) {
286 memcpy(dest + destpos, insert, insertlen * sizeof(gunichar2));
287 destpos += insertlen;
295 ves_icall_System_String_InternalInsert (MonoString *me, gint32 sindex, MonoString *value)
299 gunichar2 *insertsrc;
306 src = mono_string_chars(me);
307 srclen = mono_string_length(me);
309 insertsrc = mono_string_chars(value);
310 insertlen = mono_string_length(value);
312 ret = mono_string_new_size( mono_domain_get (), srclen + insertlen);
313 dest = mono_string_chars(ret);
315 memcpy(dest, src, sindex * sizeof(gunichar2));
316 memcpy(dest + sindex, insertsrc, insertlen * sizeof(gunichar2));
317 memcpy(dest + sindex + insertlen, src + sindex, (srclen - sindex) * sizeof(gunichar2));
323 ves_icall_System_String_InternalReplace_Char (MonoString *me, gunichar2 oldChar, gunichar2 newChar)
332 src = mono_string_chars(me);
333 srclen = mono_string_length(me);
335 ret = mono_string_new_size( mono_domain_get (), srclen);
336 dest = mono_string_chars(ret);
338 for (i = 0; i != srclen; i++) {
339 if (src[i] == oldChar)
349 ves_icall_System_String_InternalRemove (MonoString *me, gint32 sindex, gint32 count)
358 srclen = mono_string_length(me);
359 ret = mono_string_new_size( mono_domain_get (), srclen - count);
361 src = mono_string_chars(me);
362 dest = mono_string_chars(ret);
364 memcpy(dest, src, sindex * sizeof(gunichar2));
365 memcpy(dest + sindex, src + sindex + count, (srclen - count - sindex) * sizeof(gunichar2));
371 ves_icall_System_String_InternalCopyTo (MonoString *me, gint32 sindex, MonoArray *dest, gint32 dindex, gint32 count)
373 gunichar2 *destptr = (gunichar2 *) mono_array_addr(dest, gunichar2, dindex);
374 gunichar2 *src = mono_string_chars(me);
378 memcpy(destptr, src + sindex, sizeof(gunichar2) * count);
382 ves_icall_System_String_InternalSplit (MonoString *me, MonoArray *separator, gint32 count)
387 gint32 arrsize, srcsize, splitsize;
388 gint32 i, lastpos, arrpos;
390 gunichar2 *tmpstrptr;
396 src = mono_string_chars(me);
397 srcsize = mono_string_length(me);
398 arrsize = mono_array_length(separator);
400 cmpchar = mono_array_get(separator, gunichar2, 0);
403 for (i = 0; i != srcsize && splitsize < count; i++) {
404 if (string_icall_is_in_array(separator, arrsize, src[i]))
411 /* if no split chars found return the string */
412 if (splitsize == 0) {
413 retarr = mono_array_new(mono_domain_get(), mono_get_string_class (), 1);
414 mono_array_setref (retarr, 0, me);
419 if (splitsize != count)
422 retarr = mono_array_new(mono_domain_get(), mono_get_string_class (), splitsize);
423 for (i = 0; i != srcsize && arrpos != count; i++) {
424 if (string_icall_is_in_array(separator, arrsize, src[i])) {
425 if (arrpos == count - 1)
426 tmpstrsize = srcsize - lastpos;
428 tmpstrsize = i - lastpos;
430 tmpstr = mono_string_new_size( mono_domain_get (), tmpstrsize);
431 tmpstrptr = mono_string_chars(tmpstr);
433 memcpy(tmpstrptr, src + lastpos, tmpstrsize * sizeof(gunichar2));
434 mono_array_setref (retarr, arrpos, tmpstr);
440 if (arrpos < count) {
441 tmpstrsize = srcsize - lastpos;
442 tmpstr = mono_string_new_size( mono_domain_get (), tmpstrsize);
443 tmpstrptr = mono_string_chars(tmpstr);
445 memcpy(tmpstrptr, src + lastpos, tmpstrsize * sizeof(gunichar2));
446 mono_array_setref (retarr, arrpos, tmpstr);
453 string_icall_is_in_array (MonoArray *chars, gint32 arraylength, gunichar2 chr)
458 for (arrpos = 0; arrpos != arraylength; arrpos++) {
459 cmpchar = mono_array_get(chars, gunichar2, arrpos);
468 ves_icall_System_String_InternalTrim (MonoString *me, MonoArray *chars, gint32 typ)
471 gunichar2 *src, *dest;
472 gint32 srclen, newlen, arrlen;
473 gint32 i, lenfirst, lenlast;
477 srclen = mono_string_length(me);
478 src = mono_string_chars(me);
479 arrlen = mono_array_length(chars);
484 if (0 == typ || 1 == typ) {
485 for (i = 0; i != srclen; i++) {
486 if (string_icall_is_in_array(chars, arrlen, src[i]))
493 if (0 == typ || 2 == typ) {
494 for (i = srclen - 1; i > lenfirst - 1; i--) {
495 if (string_icall_is_in_array(chars, arrlen, src[i]))
502 newlen = srclen - lenfirst - lenlast;
503 if (newlen == srclen)
506 ret = mono_string_new_size( mono_domain_get (), newlen);
507 dest = mono_string_chars(ret);
509 memcpy(dest, src + lenfirst, newlen *sizeof(gunichar2));
515 ves_icall_System_String_InternalIndexOfAny (MonoString *me, MonoArray *arr, gint32 sindex, gint32 count)
524 arraysize = mono_array_length(arr);
525 src = mono_string_chars(me);
527 for (pos = sindex; pos != count + sindex; pos++) {
528 for (loop = 0; loop != arraysize; loop++)
529 if ( src [pos] == mono_array_get(arr, gunichar2, loop) )
537 ves_icall_System_String_InternalLastIndexOf_Char (MonoString *me, gunichar2 value, gint32 sindex, gint32 count)
544 src = mono_string_chars(me);
545 for (pos = sindex; pos > sindex - count; pos--) {
546 if (src [pos] == value)
554 ves_icall_System_String_InternalLastIndexOf_Str (MonoString *me, MonoString *value, gint32 sindex, gint32 count)
563 lencmpstr = mono_string_length(value);
565 src = mono_string_chars(me);
566 cmpstr = mono_string_chars(value);
568 for (pos = sindex - lencmpstr + 1; pos > sindex - count; pos--) {
569 if (0 == memcmp(src + pos, cmpstr, lencmpstr * sizeof(gunichar2)))
577 ves_icall_System_String_InternalLastIndexOfAny (MonoString *me, MonoArray *anyOf, gint32 sindex, gint32 count)
586 arraysize = mono_array_length(anyOf);
587 src = mono_string_chars(me);
589 for (pos = sindex; pos > sindex - count; pos--) {
590 for (loop = 0; loop != arraysize; loop++)
591 if ( src [pos] == mono_array_get(anyOf, gunichar2, loop) )
599 ves_icall_System_String_InternalPad (MonoString *me, gint32 width, gunichar2 chr, MonoBoolean right)
610 srclen = mono_string_length(me);
611 src = mono_string_chars(me);
613 ret = mono_string_new_size( mono_domain_get (), width);
614 dest = mono_string_chars(ret);
615 fillcount = width - srclen;
618 memcpy(dest, src, srclen * sizeof(gunichar2));
619 for (i = srclen; i != width; i++)
626 for (i = 0; i != fillcount; i++)
629 memcpy(dest + fillcount, src, srclen * sizeof(gunichar2));
635 ves_icall_System_String_InternalAllocateStr (gint32 length)
639 return mono_string_new_size(mono_domain_get (), length);
643 ves_icall_System_String_InternalStrcpy_Str (MonoString *dest, gint32 destPos, MonoString *src)
650 srcptr = mono_string_chars (src);
651 destptr = mono_string_chars (dest);
653 g_memmove (destptr + destPos, srcptr, mono_string_length(src) * sizeof(gunichar2));
657 ves_icall_System_String_InternalStrcpy_StrN (MonoString *dest, gint32 destPos, MonoString *src, gint32 startPos, gint32 count)
664 srcptr = mono_string_chars (src);
665 destptr = mono_string_chars (dest);
666 g_memmove (destptr + destPos, srcptr + startPos, count * sizeof(gunichar2));
670 ves_icall_System_String_InternalStrcpy_Chars (MonoString *dest, gint32 destPos, MonoArray *src)
677 srcptr = mono_array_addr (src, gunichar2, 0);
678 destptr = mono_string_chars (dest);
680 g_memmove (destptr + destPos, srcptr, mono_array_length (src) * sizeof(gunichar2));
684 ves_icall_System_String_InternalStrcpy_CharsN (MonoString *dest, gint32 destPos, MonoArray *src, gint32 startPos, gint32 count)
691 srcptr = mono_array_addr (src, gunichar2, 0);
692 destptr = mono_string_chars (dest);
694 g_memmove (destptr + destPos, srcptr + startPos, count * sizeof(gunichar2));
698 ves_icall_System_String_InternalIntern (MonoString *str)
702 return mono_string_intern(str);
706 ves_icall_System_String_InternalIsInterned (MonoString *str)
710 return mono_string_is_interned(str);
714 ves_icall_System_String_get_Chars (MonoString *me, gint32 idx)
718 if ((idx < 0) || (idx >= mono_string_length (me)))
719 mono_raise_exception (mono_get_exception_index_out_of_range ());
720 return mono_string_chars(me)[idx];
724 ves_icall_System_String_InternalCharCopy (gunichar2 *src, gunichar2 *dest, gint32 count)
728 memcpy (dest, src, sizeof (gunichar2) * count);