ICU-8.11.tar.gz

[apple/icu.git] / icuSources / i18n / umsg.cpp

diff --git a/icuSources/i18n/umsg.cpp b/icuSources/i18n/umsg.cpp
index 2e3ea198600620a7b0dff539dc5b203e8285d15c..8a58ee0442c02aa1e613fce0c63481dedbcdf192 100644 (file)
--- a/icuSources/i18n/umsg.cpp
+++ b/icuSources/i18n/umsg.cpp
@@ -1,7 +1,7 @@
 /*
 *******************************************************************************
 *
-*   Copyright (C) 1999-2004, International Business Machines
+*   Copyright (C) 1999-2006, International Business Machines
 *   Corporation and others.  All Rights Reserved.
 *
 *******************************************************************************
@@ -30,6 +30,7 @@
 #include "unicode/unistr.h"
 #include "cpputils.h"
 #include "uassert.h"
+#include "ustr_imp.h"
 
 U_NAMESPACE_USE
 
@@ -601,18 +602,105 @@ umsg_vparse(const UMessageFormat *fmt,
     delete [] args;
 }
 
-U_CAPI const char* U_EXPORT2
-umsg_getLocaleByType(const UMessageFormat *fmt,
-                     ULocDataLocaleType type,
-                     UErrorCode* status)
+#define SINGLE_QUOTE      ((UChar)0x0027)
+#define CURLY_BRACE_LEFT  ((UChar)0x007B)
+#define CURLY_BRACE_RIGHT ((UChar)0x007D)
+
+#define STATE_INITIAL 0
+#define STATE_SINGLE_QUOTE 1
+#define STATE_IN_QUOTE 2
+#define STATE_MSG_ELEMENT 3
+
+#define MAppend(c) if (len < destCapacity) dest[len++] = c; else len++
+
+int32_t umsg_autoQuoteApostrophe(const UChar* pattern, 
+                 int32_t patternLength,
+                 UChar* dest,
+                 int32_t destCapacity,
+                 UErrorCode* ec)
 {
-    if (fmt == NULL) {
-        if (U_SUCCESS(*status)) {
-            *status = U_ILLEGAL_ARGUMENT_ERROR;
+    int32_t state = STATE_INITIAL;
+    int32_t braceCount = 0;
+    int32_t len = 0;
+
+    if (ec == NULL || U_FAILURE(*ec)) {
+        return -1;
+    }
+
+    if (pattern == NULL || patternLength < -1 || (dest == NULL && destCapacity > 0)) {
+        *ec = U_ILLEGAL_ARGUMENT_ERROR;
+        return -1;
+    }
+
+    if (patternLength == -1) {
+        patternLength = u_strlen(pattern);
+    }
+
+    for (int i = 0; i < patternLength; ++i) {
+        UChar c = pattern[i];
+        switch (state) {
+        case STATE_INITIAL:
+            switch (c) {
+            case SINGLE_QUOTE:
+                state = STATE_SINGLE_QUOTE;
+                break;
+            case CURLY_BRACE_LEFT:
+                state = STATE_MSG_ELEMENT;
+                ++braceCount;
+                break;
+            }
+            break;
+
+        case STATE_SINGLE_QUOTE:
+            switch (c) {
+            case SINGLE_QUOTE:
+                state = STATE_INITIAL;
+                break;
+            case CURLY_BRACE_LEFT:
+            case CURLY_BRACE_RIGHT:
+                state = STATE_IN_QUOTE;
+                break;
+            default:
+                MAppend(SINGLE_QUOTE);
+                state = STATE_INITIAL;
+                break;
+            }
+        break;
+
+        case STATE_IN_QUOTE:
+            switch (c) {
+            case SINGLE_QUOTE:
+                state = STATE_INITIAL;
+                break;
+            }
+            break;
+
+        case STATE_MSG_ELEMENT:
+            switch (c) {
+            case CURLY_BRACE_LEFT:
+                ++braceCount;
+                break;
+            case CURLY_BRACE_RIGHT:
+                if (--braceCount == 0) {
+                    state = STATE_INITIAL;
+                }
+                break;
+            }
+            break;
+
+        default: // Never happens.
+            break;
         }
-        return NULL;
+
+        MAppend(c);
     }
-    return ((Format*)fmt)->getLocaleID(type, *status);
+
+    // End of scan
+    if (state == STATE_SINGLE_QUOTE || state == STATE_IN_QUOTE) {
+        MAppend(SINGLE_QUOTE);
+    }
+
+    return u_terminateUChars(dest, destCapacity, len, ec);
 }
 
 #endif /* #if !UCONFIG_NO_FORMATTING */