#include <mono/metadata/profiler-private.h>
#include <mono/metadata/gc-internal.h>
-/* Internal helper methods */
-
-static gboolean
-string_icall_is_in_array (MonoArray *chars, gint32 arraylength, gunichar2 chr);
-
/* This function is redirected to String.CreateString ()
by mono_marshal_get_native_wrapper () */
void
g_assert_not_reached ();
}
-/* System.StringSplitOptions */
-typedef enum {
- STRINGSPLITOPTIONS_NONE = 0,
- STRINGSPLITOPTIONS_REMOVE_EMPTY_ENTRIES = 1
-} StringSplitOptions;
-
-MonoArray *
-ves_icall_System_String_InternalSplit (MonoString *me, MonoArray *separator, gint32 count, gint32 options)
-{
- static MonoClass *String_array;
- MonoString * tmpstr;
- MonoArray * retarr;
- gunichar2 *src;
- gint32 arrsize, srcsize, splitsize;
- gint32 i, lastpos, arrpos;
- gint32 tmpstrsize;
- gint32 remempty;
- gint32 flag;
- gunichar2 *tmpstrptr;
-
- remempty = options & STRINGSPLITOPTIONS_REMOVE_EMPTY_ENTRIES;
- src = mono_string_chars (me);
- srcsize = mono_string_length (me);
- arrsize = mono_array_length (separator);
-
- if (!String_array) {
- MonoClass *klass = mono_array_class_get (mono_get_string_class (), 1);
- mono_memory_barrier ();
- String_array = klass;
- }
-
- splitsize = 1;
- /* Count the number of elements we will return. Note that this operation
- * guarantees that we will return exactly splitsize elements, and we will
- * have enough data to fill each. This allows us to skip some checks later on.
- */
- if (remempty == 0) {
- for (i = 0; i != srcsize && splitsize < count; i++) {
- if (string_icall_is_in_array (separator, arrsize, src [i]))
- splitsize++;
- }
- } else if (count > 1) {
- /* Require pattern "Nondelim + Delim + Nondelim" to increment counter.
- * Lastpos != 0 means first nondelim found.
- * Flag = 0 means last char was delim.
- * Efficient, though perhaps confusing.
- */
- lastpos = 0;
- flag = 0;
- for (i = 0; i != srcsize && splitsize < count; i++) {
- if (string_icall_is_in_array (separator, arrsize, src [i])) {
- flag = 0;
- } else if (flag == 0) {
- if (lastpos == 1)
- splitsize++;
- flag = 1;
- lastpos = 1;
- }
- }
-
- /* Nothing but separators */
- if (lastpos == 0) {
- retarr = mono_array_new_specific (mono_class_vtable (mono_domain_get (), String_array), 0);
- return retarr;
- }
- }
-
- /* if no split chars found return the string */
- if (splitsize == 1) {
- if (remempty == 0 || count == 1) {
- /* Copy the whole string */
- retarr = mono_array_new_specific (mono_class_vtable (mono_domain_get (), String_array), 1);
- mono_array_setref (retarr, 0, me);
- } else {
- /* otherwise we have to filter out leading & trailing delims */
-
- /* find first non-delim char */
- for (; srcsize != 0; srcsize--, src++) {
- if (!string_icall_is_in_array (separator, arrsize, src [0]))
- break;
- }
- /* find last non-delim char */
- for (; srcsize != 0; srcsize--) {
- if (!string_icall_is_in_array (separator, arrsize, src [srcsize - 1]))
- break;
- }
- tmpstr = mono_string_new_size (mono_domain_get (), srcsize);
- tmpstrptr = mono_string_chars (tmpstr);
-
- memcpy (tmpstrptr, src, srcsize * sizeof (gunichar2));
- retarr = mono_array_new_specific (mono_class_vtable (mono_domain_get (), String_array), 1);
- mono_array_setref (retarr, 0, tmpstr);
- }
- return retarr;
- }
-
- lastpos = 0;
- arrpos = 0;
-
- retarr = mono_array_new_specific (mono_class_vtable (mono_domain_get (), String_array), splitsize);
-
- for (i = 0; i != srcsize && arrpos != splitsize; i++) {
- if (string_icall_is_in_array (separator, arrsize, src [i])) {
-
- if (lastpos != i || remempty == 0) {
- tmpstrsize = i - lastpos;
- tmpstr = mono_string_new_size (mono_domain_get (), tmpstrsize);
- tmpstrptr = mono_string_chars (tmpstr);
-
- memcpy (tmpstrptr, src + lastpos, tmpstrsize * sizeof (gunichar2));
- mono_array_setref (retarr, arrpos, tmpstr);
- arrpos++;
-
- if (arrpos == splitsize - 1) {
- /* Shortcut the last array element */
-
- lastpos = i + 1;
- if (remempty != 0) {
- /* Search for non-delim starting char (guaranteed to find one) Note that loop
- * condition is only there for safety. It will never actually terminate the loop. */
- for (; lastpos != srcsize ; lastpos++) {
- if (!string_icall_is_in_array (separator, arrsize, src [lastpos]))
- break;
- }
- if (count > splitsize) {
- /* Since we have fewer results than our limit, we must remove
- * trailing delimiters as well.
- */
- for (; srcsize != lastpos + 1 ; srcsize--) {
- if (!string_icall_is_in_array (separator, arrsize, src [srcsize - 1]))
- break;
- }
- }
- }
-
- tmpstrsize = srcsize - lastpos;
- tmpstr = mono_string_new_size (mono_domain_get (), tmpstrsize);
- tmpstrptr = mono_string_chars (tmpstr);
-
- memcpy (tmpstrptr, src + lastpos, tmpstrsize * sizeof (gunichar2));
- mono_array_setref (retarr, arrpos, tmpstr);
-
- /* Loop will ALWAYS end here. Test criteria in the FOR loop is technically unnecessary. */
- break;
- }
- }
- lastpos = i + 1;
- }
- }
-
- return retarr;
-}
-
-static gboolean
-string_icall_is_in_array (MonoArray *chars, gint32 arraylength, gunichar2 chr)
-{
- gunichar2 cmpchar;
- gint32 arrpos;
-
- for (arrpos = 0; arrpos != arraylength; arrpos++) {
- cmpchar = mono_array_get(chars, gunichar2, arrpos);
- if (cmpchar == chr)
- return TRUE;
- }
-
- return FALSE;
-}
-
MonoString *
ves_icall_System_String_InternalAllocateStr (gint32 length)
{
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