1 files changed, 356 insertions, 0 deletions
diff --git a/Build/source/libs/icu/icu-49.1/samples/uciter8/uciter8.c b/Build/source/libs/icu/icu-49.1/samples/uciter8/uciter8.c
new file mode 100644
index 00000000000..6c705538f64
--- /dev/null
+++ b/Build/source/libs/icu/icu-49.1/samples/uciter8/uciter8.c
@@ -0,0 +1,356 @@
+/*
+*******************************************************************************
+*
+*   Copyright (C) 2003-2007, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+*
+*******************************************************************************
+*   file name:  uciter8.c
+*   encoding:   US-ASCII
+*   tab size:   8 (not used)
+*   indentation:4
+*
+*   created on: 2003jan10
+*   created by: Markus W. Scherer
+*
+*   This file contains sample code that illustrates reading
+*   8-bit Unicode text leniently, accepting a mix of UTF-8 and CESU-8
+*   and also accepting single surrogates.
+*/
+
+#include <stdio.h>
+#include <string.h>
+#include "unicode/utypes.h"
+#include "unicode/uiter.h"
+#include "uit_len8.h"
+
+#define LENGTHOF(array) (sizeof(array)/sizeof((array)[0]))
+
+#define log_err printf
+
+/* UCharIterator test ------------------------------------------------------- */
+
+/*
+ * The following code is a copy of the UCharIterator test code in
+ * source/test/cintltst/custrtst.c,
+ * testing the lenient-8 iterator instead of the UTF-8 one.
+ */
+
+/*
+ * Compare results from two iterators, should be same.
+ * Assume that the text is not empty and that
+ * iteration start==0 and iteration limit==length.
+ */
+static void
+compareIterators(UCharIterator *iter1, const char *n1,
+                 UCharIterator *iter2, const char *n2) {
+    int32_t i, pos1, pos2, middle, length;
+    UChar32 c1, c2;
+
+    /* compare lengths */
+    length=iter1->getIndex(iter1, UITER_LENGTH);
+    pos2=iter2->getIndex(iter2, UITER_LENGTH);
+    if(length!=pos2) {
+        log_err("%s->getIndex(length)=%d != %d=%s->getIndex(length)\n", n1, length, pos2, n2);
+        return;
+    }
+
+    /* set into the middle */
+    middle=length/2;
+
+    pos1=iter1->move(iter1, middle, UITER_ZERO);
+    if(pos1!=middle) {
+        log_err("%s->move(from 0 to middle %d)=%d does not move to the middle\n", n1, middle, pos1);
+        return;
+    }
+
+    pos2=iter2->move(iter2, middle, UITER_ZERO);
+    if(pos2!=middle) {
+        log_err("%s->move(from 0 to middle %d)=%d does not move to the middle\n", n2, middle, pos2);
+        return;
+    }
+
+    /* test current() */
+    c1=iter1->current(iter1);
+    c2=iter2->current(iter2);
+    if(c1!=c2) {
+        log_err("%s->current()=U+%04x != U+%04x=%s->current() at middle=%d\n", n1, c1, c2, n2, middle);
+        return;
+    }
+
+    /* move forward 3 UChars */
+    for(i=0; i<3; ++i) {
+        c1=iter1->next(iter1);
+        c2=iter2->next(iter2);
+        if(c1!=c2) {
+            log_err("%s->next()=U+%04x != U+%04x=%s->next() at %d (started in middle)\n", n1, c1, c2, n2, iter1->getIndex(iter1, UITER_CURRENT));
+            return;
+        }
+    }
+
+    /* move backward 5 UChars */
+    for(i=0; i<5; ++i) {
+        c1=iter1->previous(iter1);
+        c2=iter2->previous(iter2);
+        if(c1!=c2) {
+            log_err("%s->previous()=U+%04x != U+%04x=%s->previous() at %d (started in middle)\n", n1, c1, c2, n2, iter1->getIndex(iter1, UITER_CURRENT));
+            return;
+        }
+    }
+
+    /* iterate forward from the beginning */
+    pos1=iter1->move(iter1, 0, UITER_START);
+    if(pos1<0) {
+        log_err("%s->move(start) failed\n", n1);
+        return;
+    }
+    if(!iter1->hasNext(iter1)) {
+        log_err("%s->hasNext() at the start returns FALSE\n", n1);
+        return;
+    }
+
+    pos2=iter2->move(iter2, 0, UITER_START);
+    if(pos2<0) {
+        log_err("%s->move(start) failed\n", n2);
+        return;
+    }
+    if(!iter2->hasNext(iter2)) {
+        log_err("%s->hasNext() at the start returns FALSE\n", n2);
+        return;
+    }
+
+    do {
+        c1=iter1->next(iter1);
+        c2=iter2->next(iter2);
+        if(c1!=c2) {
+            log_err("%s->next()=U+%04x != U+%04x=%s->next() at %d\n", n1, c1, c2, n2, iter1->getIndex(iter1, UITER_CURRENT));
+            return;
+        }
+    } while(c1>=0);
+
+    if(iter1->hasNext(iter1)) {
+        log_err("%s->hasNext() at the end returns TRUE\n", n1);
+        return;
+    }
+    if(iter2->hasNext(iter2)) {
+        log_err("%s->hasNext() at the end returns TRUE\n", n2);
+        return;
+    }
+
+    /* back to the middle */
+    pos1=iter1->move(iter1, middle, UITER_ZERO);
+    if(pos1!=middle) {
+        log_err("%s->move(from end to middle %d)=%d does not move to the middle\n", n1, middle, pos1);
+        return;
+    }
+
+    pos2=iter2->move(iter2, middle, UITER_ZERO);
+    if(pos2!=middle) {
+        log_err("%s->move(from end to middle %d)=%d does not move to the middle\n", n2, middle, pos2);
+        return;
+    }
+
+    /* move to index 1 */
+    pos1=iter1->move(iter1, 1, UITER_ZERO);
+    if(pos1!=1) {
+        log_err("%s->move(from middle %d to 1)=%d does not move to 1\n", n1, middle, pos1);
+        return;
+    }
+
+    pos2=iter2->move(iter2, 1, UITER_ZERO);
+    if(pos2!=1) {
+        log_err("%s->move(from middle %d to 1)=%d does not move to 1\n", n2, middle, pos2);
+        return;
+    }
+
+    /* iterate backward from the end */
+    pos1=iter1->move(iter1, 0, UITER_LIMIT);
+    if(pos1<0) {
+        log_err("%s->move(limit) failed\n", n1);
+        return;
+    }
+    if(!iter1->hasPrevious(iter1)) {
+        log_err("%s->hasPrevious() at the end returns FALSE\n", n1);
+        return;
+    }
+
+    pos2=iter2->move(iter2, 0, UITER_LIMIT);
+    if(pos2<0) {
+        log_err("%s->move(limit) failed\n", n2);
+        return;
+    }
+    if(!iter2->hasPrevious(iter2)) {
+        log_err("%s->hasPrevious() at the end returns FALSE\n", n2);
+        return;
+    }
+
+    do {
+        c1=iter1->previous(iter1);
+        c2=iter2->previous(iter2);
+        if(c1!=c2) {
+            log_err("%s->previous()=U+%04x != U+%04x=%s->previous() at %d\n", n1, c1, c2, n2, iter1->getIndex(iter1, UITER_CURRENT));
+            return;
+        }
+    } while(c1>=0);
+
+    if(iter1->hasPrevious(iter1)) {
+        log_err("%s->hasPrevious() at the start returns TRUE\n", n1);
+        return;
+    }
+    if(iter2->hasPrevious(iter2)) {
+        log_err("%s->hasPrevious() at the start returns TRUE\n", n2);
+        return;
+    }
+}
+
+/*
+ * Test the iterator's getState() and setState() functions.
+ * iter1 and iter2 must be set up for the same iterator type and the same string
+ * but may be physically different structs (different addresses).
+ *
+ * Assume that the text is not empty and that
+ * iteration start==0 and iteration limit==length.
+ * It must be 2<=middle<=length-2.
+ */
+static void
+testIteratorState(UCharIterator *iter1, UCharIterator *iter2, const char *n, int32_t middle) {
+    UChar32 u[4];
+
+    UErrorCode errorCode;
+    UChar32 c;
+    uint32_t state;
+    int32_t i, j;
+
+    /* get four UChars from the middle of the string */
+    iter1->move(iter1, middle-2, UITER_ZERO);
+    for(i=0; i<4; ++i) {
+        c=iter1->next(iter1);
+        if(c<0) {
+            /* the test violates the assumptions, see comment above */
+            log_err("test error: %s[%d]=%d\n", n, middle-2+i, c);
+            return;
+        }
+        u[i]=c;
+    }
+
+    /* move to the middle and get the state */
+    iter1->move(iter1, -2, UITER_CURRENT);
+    state=uiter_getState(iter1);
+
+    /* set the state into the second iterator and compare the results */
+    errorCode=U_ZERO_ERROR;
+    uiter_setState(iter2, state, &errorCode);
+    if(U_FAILURE(errorCode)) {
+        log_err("%s->setState(0x%x) failed: %s\n", n, state, u_errorName(errorCode));
+        return;
+    }
+
+    c=iter2->current(iter2);
+    if(c!=u[2]) {
+        log_err("%s->current(at %d)=U+%04x!=U+%04x\n", n, middle, c, u[2]);
+    }
+
+    c=iter2->previous(iter2);
+    if(c!=u[1]) {
+        log_err("%s->previous(at %d)=U+%04x!=U+%04x\n", n, middle-1, c, u[1]);
+    }
+
+    iter2->move(iter2, 2, UITER_CURRENT);
+    c=iter2->next(iter2);
+    if(c!=u[3]) {
+        log_err("%s->next(at %d)=U+%04x!=U+%04x\n", n, middle+1, c, u[3]);
+    }
+
+    iter2->move(iter2, -3, UITER_CURRENT);
+    c=iter2->previous(iter2);
+    if(c!=u[0]) {
+        log_err("%s->previous(at %d)=U+%04x!=U+%04x\n", n, middle-2, c, u[0]);
+    }
+
+    /* move the second iterator back to the middle */
+    iter2->move(iter2, 1, UITER_CURRENT);
+    iter2->next(iter2);
+
+    /* check that both are in the middle */
+    i=iter1->getIndex(iter1, UITER_CURRENT);
+    j=iter2->getIndex(iter2, UITER_CURRENT);
+    if(i!=middle) {
+        log_err("%s->getIndex(current)=%d!=%d as expected\n", n, i, middle);
+    }
+    if(i!=j) {
+        log_err("%s->getIndex(current)=%d!=%d after setState()\n", n, j, i);
+    }
+
+    /* compare lengths */
+    i=iter1->getIndex(iter1, UITER_LENGTH);
+    j=iter2->getIndex(iter2, UITER_LENGTH);
+    if(i!=j) {
+        log_err("%s->getIndex(length)=%d!=%d before/after setState()\n", n, i, j);
+    }
+}
+
+static void
+TestLenient8Iterator() {
+    static const UChar text[]={
+        0x61, 0x62, 0x63,
+        /* dffd 107fd             d801    dffd - in UTF-16, U+107fd=<d801 dffd> */
+        0xdffd, 0xd801, 0xdffd, 0xd801, 0xdffd, 
+        0x78, 0x79, 0x7a, 0
+    };
+    static const uint8_t bytes[]={
+        0x61, 0x62, 0x63,
+        /* dffd            107fd                    d801               dffd - mixture */
+        0xed, 0xbf, 0xbd,  0xf0, 0x90, 0x9f, 0xbd,  0xed, 0xa0, 0x81,  0xed, 0xbf, 0xbd,
+        0x78, 0x79, 0x7a, 0
+    };
+
+    UCharIterator iter1, iter2;
+    UChar32 c1, c2;
+    int32_t length;
+
+    puts("test a UCharIterator for lenient 8-bit Unicode (accept single surrogates)");
+
+    /* compare the same string between UTF-16 and lenient-8 UCharIterators */
+    uiter_setString(&iter1, text, -1);
+    uiter_setLenient8(&iter2, (const char *)bytes, sizeof(bytes)-1);
+    compareIterators(&iter1, "UTF16Iterator", &iter2, "Lenient8Iterator");
+
+    /* try again with length=-1 */
+    uiter_setLenient8(&iter2, (const char *)bytes, -1);
+    compareIterators(&iter1, "UTF16Iterator", &iter2, "Lenient8Iterator_1");
+
+    /* test get/set state */
+    length=LENGTHOF(text)-1;
+    uiter_setLenient8(&iter1, (const char*)bytes, -1);
+    testIteratorState(&iter1, &iter2, "Lenient8IteratorState", length/2);
+    testIteratorState(&iter1, &iter2, "Lenient8IteratorStatePlus1", length/2+1);
+
+    /* ---------------------------------------------------------------------- */
+
+    puts("no output so far means that the lenient-8 iterator works fine");
+
+    puts("iterate forward:\nUTF-16\tlenient-8");
+    uiter_setString(&iter1, text, -1);
+    iter1.move(&iter1, 0, UITER_START);
+    iter2.move(&iter2, 0, UITER_START);
+    for(;;) {
+        c1=iter1.next(&iter1);
+        c2=iter2.next(&iter2);
+        if(c1<0 && c2<0) {
+            break;
+        }
+        if(c1<0) {
+            printf("\t%04x\n", c2);
+        } else if(c2<0) {
+            printf("%04x\n", c1);
+        } else {
+            printf("%04x\t%04x\n", c1, c2);
+        }
+    }
+}
+
+extern int
+main(int argc, const char *argv[]) {
+    TestLenient8Iterator();
+    return 0;
+}