icuSources/test/intltest/textfile.h

   1 /*
   2 **********************************************************************
   3 * Copyright (c) 2004-2006, International Business Machines
   4 * Corporation and others.  All Rights Reserved.
   5 **********************************************************************
   6 * Author: Alan Liu
   7 * Created: March 19 2004
   8 * Since: ICU 3.0
   9 **********************************************************************
  10 */
  11 #ifndef __ICU_INTLTEST_TEXTFILE__
  12 #define __ICU_INTLTEST_TEXTFILE__
  13
  14 #include "intltest.h"
  15 #include "filestrm.h"
  16
  17 /**
  18  * This class implements access to a text data file located in the
  19  * icu/source/test/testdata/ directory.
  20  */
  21 class TextFile {
  22  public:
  23     /**
  24      * Open a file with the given name, in the given encoding, in the
  25      * ICU testdata directory. See textfile.cpp to determine if the
  26      * 'name' and 'encoding' parameters are aliased or copied.
  27      */
  28     TextFile(const char* name, const char* encoding, UErrorCode& ec);
  29
  30     virtual ~TextFile();
  31
  32     /**
  33      * Read a line terminated by ^J or ^M or ^M^J, and convert it from
  34      * this file's encoding to Unicode. The EOL character(s) are not
  35      * included in 'line'.
  36      * @return TRUE if a line was read, or FALSE if the EOF
  37      * was reached or an error occurred
  38      */
  39     UBool readLine(UnicodeString& line, UErrorCode& ec);
  40
  41     /**
  42      * Read a line, ignoring blank lines and lines that start with
  43      * '#'.  Trim leading white space.
  44      * @param trim if TRUE then remove leading rule white space
  45      * @return TRUE if a line was read, or FALSE if the EOF
  46      * was reached or an error occurred
  47      */
  48     UBool readLineSkippingComments(UnicodeString& line, UErrorCode& ec,
  49                                    UBool trim = FALSE);
  50
  51     /**
  52      * Return the line number of the last line returned by readLine().
  53      */
  54     inline int32_t getLineNumber() const;
  55
  56  private:
  57     UBool ensureCapacity(int32_t capacity);
  58     UBool setBuffer(int32_t index, char c, UErrorCode& ec);
  59
  60     FileStream* file;
  61     char* name;
  62     char* encoding;
  63     char* buffer;
  64     int32_t capacity;
  65     int32_t lineNo;
  66 };
  67
  68 inline int32_t TextFile::getLineNumber() const {
  69     return lineNo;
  70 }
  71
  72 #endif