Check in the pristine copy of ICU 4.6...

icu46/source/io/ufile.h

+/*
+ *******************************************************************************
+ *
+ *   Copyright (C) 1998-2010, International Business Machines
+ *   Corporation and others.  All Rights Reserved.
+ *
+ *******************************************************************************
+ *
+ * File ufile.h
+ *
+ * Modification History:
+ *
+ *   Date        Name        Description
+ *   12/01/98    stephen        Creation.
+ *   03/12/99    stephen     Modified for new C API.
+ *******************************************************************************
+ */
+
+#ifndef UFILE_H
+#define UFILE_H
+
+#include "unicode/utypes.h"
+#include "unicode/ucnv.h"
+#include "unicode/utrans.h"
+#include "locbund.h"
+
+/* The buffer size for fromUnicode calls */
+#define UFILE_CHARBUFFER_SIZE 1024
+
+/* The buffer size for toUnicode calls */
+#define UFILE_UCHARBUFFER_SIZE 1024
+
+/* A UFILE */
+
+#if !UCONFIG_NO_TRANSLITERATION
+
+typedef struct {
+    UChar  *buffer;             /* Beginning of buffer */
+    int32_t capacity;           /* Capacity of buffer */
+    int32_t pos;                /* Beginning of untranslitted data */
+    int32_t length;             /* Length *from beginning of buffer* of untranslitted data */
+    UTransliterator *translit;
+} UFILETranslitBuffer;
+
+#endif
+
+typedef struct u_localized_string {
+    UChar       *fPos;          /* current pos in fUCBuffer */
+    const UChar *fLimit;        /* data limit in fUCBuffer */
+    UChar       *fBuffer;       /* Place to write the string */
+
+#if !UCONFIG_NO_FORMATTING
+    ULocaleBundle  fBundle; /* formatters */
+#endif
+} u_localized_string;
+
+struct UFILE {
+#if !UCONFIG_NO_TRANSLITERATION
+    UFILETranslitBuffer *fTranslit;
+#endif
+
+    FILE        *fFile;         /* the actual filesystem interface */
+
+    UConverter  *fConverter;    /* for codeset conversion */
+
+    u_localized_string str;     /* struct to handle strings for number formatting */
+
+    UChar       fUCBuffer[UFILE_UCHARBUFFER_SIZE];/* buffer used for toUnicode */
+
+    UBool       fOwnFile;       /* TRUE if fFile should be closed */
+
+    int32_t     fFileno;        /* File number. Useful to determine if it's stdin. */
+};
+
+/**
+ * Like u_file_write but takes a flush parameter
+ */
+U_CFUNC int32_t U_EXPORT2
+u_file_write_flush( const UChar     *chars, 
+        int32_t     count, 
+        UFILE       *f,
+        UBool       flushIO,
+        UBool       flushTranslit);
+
+/**
+ * Fill a UFILE's buffer with converted codepage data.
+ * @param f The UFILE containing the buffer to fill.
+ */
+void
+ufile_fill_uchar_buffer(UFILE *f);
+
+/**
+ * Get one code unit and detect whether the end of file has been reached.
+ * @param f The UFILE containing the characters.
+ * @param ch The read in character
+ * @return TRUE if the character is valid, or FALSE when EOF has been detected
+ */
+U_CFUNC UBool U_EXPORT2
+ufile_getch(UFILE *f, UChar *ch);
+
+/**
+ * Get one character and detect whether the end of file has been reached.
+ * @param f The UFILE containing the characters.
+ * @param ch The read in character
+ * @return TRUE if the character is valid, or FALSE when EOF has been detected
+ */
+U_CFUNC UBool U_EXPORT2
+ufile_getch32(UFILE *f, UChar32 *ch);
+
+/**
+ * Close out the transliterator and flush any data therein.
+ * @param f flu
+ */
+void 
+ufile_close_translit(UFILE *f);
+
+/**
+ * Flush the buffer in the transliterator 
+ * @param f UFile to flush
+ */
+void 
+ufile_flush_translit(UFILE *f);
+
+/**
+ * Flush the IO buffer
+ * @param f UFile to flush
+ */
+void 
+ufile_flush_io(UFILE *f);
+
+
+#endif