Check in the pristine copy of ICU 4.6...

icu46/source/i18n/format.cpp

+/*
+*******************************************************************************
+* Copyright (C) 1997-2010, International Business Machines Corporation and    *
+* others. All Rights Reserved.                                                *
+*******************************************************************************
+*
+* File FORMAT.CPP
+*
+* Modification History:
+*
+*   Date        Name        Description
+*   02/19/97    aliu        Converted from java.
+*   03/17/97    clhuang     Implemented with new APIs.
+*   03/27/97    helena      Updated to pass the simple test after code review.
+*   07/20/98    stephen        Added explicit init values for Field/ParsePosition
+********************************************************************************
+*/
+// *****************************************************************************
+// This file was generated from the java source file Format.java
+// *****************************************************************************
+
+#include <typeinfo>  // for 'typeid' to work
+
+#include "unicode/utypes.h"
+
+/*
+ * Dummy code:
+ * If all modules in the I18N library are switched off, then there are no
+ * library exports and MSVC 6 writes a .dll but not a .lib file.
+ * Unless we export _something_ in that case...
+ */
+#if UCONFIG_NO_COLLATION && UCONFIG_NO_FORMATTING && UCONFIG_NO_TRANSLITERATION
+U_CAPI int32_t U_EXPORT2
+uprv_icuin_lib_dummy(int32_t i) {
+    return -i;
+}
+#endif
+
+/* Format class implementation ---------------------------------------------- */
+
+#if !UCONFIG_NO_FORMATTING
+
+#include "unicode/format.h"
+#include "unicode/ures.h"
+#include "cstring.h"
+#include "locbased.h"
+
+// *****************************************************************************
+// class Format
+// *****************************************************************************
+
+U_NAMESPACE_BEGIN
+
+UOBJECT_DEFINE_RTTI_IMPLEMENTATION(FieldPosition)
+
+FieldPosition::~FieldPosition() {}
+
+FieldPosition *
+FieldPosition::clone() const {
+    return new FieldPosition(*this);
+}
+
+// -------------------------------------
+// default constructor
+
+Format::Format()
+    : UObject()
+{
+    *validLocale = *actualLocale = 0;
+}
+
+// -------------------------------------
+
+Format::~Format()
+{
+}
+
+// -------------------------------------
+// copy constructor
+
+Format::Format(const Format &that)
+    : UObject(that)
+{
+    *this = that;
+}
+
+// -------------------------------------
+// assignment operator
+
+Format&
+Format::operator=(const Format& that)
+{
+    if (this != &that) {
+        uprv_strcpy(validLocale, that.validLocale);
+        uprv_strcpy(actualLocale, that.actualLocale);
+    }
+    return *this;
+}
+
+// -------------------------------------
+// Formats the obj and append the result in the buffer, toAppendTo.
+// This calls the actual implementation in the concrete subclasses.
+
+UnicodeString&
+Format::format(const Formattable& obj,
+               UnicodeString& toAppendTo,
+               UErrorCode& status) const
+{
+    if (U_FAILURE(status)) return toAppendTo;
+
+    FieldPosition pos(FieldPosition::DONT_CARE);
+
+    return format(obj, toAppendTo, pos, status);
+}
+
+// -------------------------------------
+// Default implementation sets unsupported error; subclasses should
+// override.
+
+UnicodeString&
+Format::format(const Formattable& /* unused obj */,
+               UnicodeString& toAppendTo,
+               FieldPositionIterator* /* unused posIter */,
+               UErrorCode& status) const
+{
+    if (!U_FAILURE(status)) {
+      status = U_UNSUPPORTED_ERROR;
+    }
+    return toAppendTo;
+}
+
+// -------------------------------------
+// Parses the source string and create the corresponding
+// result object.  Checks the parse position for errors.
+
+void
+Format::parseObject(const UnicodeString& source,
+                    Formattable& result,
+                    UErrorCode& status) const
+{
+    if (U_FAILURE(status)) return;
+
+    ParsePosition parsePosition(0);
+    parseObject(source, result, parsePosition);
+    if (parsePosition.getIndex() == 0) {
+        status = U_INVALID_FORMAT_ERROR;
+    }
+}
+
+// -------------------------------------
+
+UBool
+Format::operator==(const Format& that) const
+{
+    // Subclasses: Call this method and then add more specific checks.
+    return typeid(*this) == typeid(that);
+}
+//---------------------------------------
+
+/**
+ * Simple function for initializing a UParseError from a UnicodeString.
+ *
+ * @param pattern The pattern to copy into the parseError
+ * @param pos The position in pattern where the error occured
+ * @param parseError The UParseError object to fill in
+ * @draft ICU 2.4
+ */
+void Format::syntaxError(const UnicodeString& pattern,
+                         int32_t pos,
+                         UParseError& parseError) {
+    parseError.offset = pos;
+    parseError.line=0;  // we are not using line number
+
+    // for pre-context
+    int32_t start = (pos < U_PARSE_CONTEXT_LEN)? 0 : (pos - (U_PARSE_CONTEXT_LEN-1
+                                                             /* subtract 1 so that we have room for null*/));
+    int32_t stop  = pos;
+    pattern.extract(start,stop-start,parseError.preContext,0);
+    //null terminate the buffer
+    parseError.preContext[stop-start] = 0;
+
+    //for post-context
+    start = pos+1;
+    stop  = ((pos+U_PARSE_CONTEXT_LEN)<=pattern.length()) ? (pos+(U_PARSE_CONTEXT_LEN-1)) :
+        pattern.length();
+    pattern.extract(start,stop-start,parseError.postContext,0);
+    //null terminate the buffer
+    parseError.postContext[stop-start]= 0;
+}
+
+Locale
+Format::getLocale(ULocDataLocaleType type, UErrorCode& status) const {
+    U_LOCALE_BASED(locBased, *this);
+    return locBased.getLocale(type, status);
+}
+
+const char *
+Format::getLocaleID(ULocDataLocaleType type, UErrorCode& status) const {
+    U_LOCALE_BASED(locBased, *this);
+    return locBased.getLocaleID(type, status);
+}
+
+void
+Format::setLocaleIDs(const char* valid, const char* actual) {
+    U_LOCALE_BASED(locBased, *this);
+    locBased.setLocaleIDs(valid, actual);
+}
+
+U_NAMESPACE_END
+
+#endif /* #if !UCONFIG_NO_FORMATTING */
+
+//eof