icuSources/test/intltest/textfile.h

   1 // © 2016 and later: Unicode, Inc. and others.
   2 // License & terms of use: http://www.unicode.org/copyright.html
   3 /*
   4 **********************************************************************
   5 * Copyright (c) 2004-2011, International Business Machines
   6 * Corporation and others.  All Rights Reserved.
   7 **********************************************************************
   8 * Author: Alan Liu
   9 * Created: March 19 2004
  10 * Since: ICU 3.0
  11 **********************************************************************
  12 */
  13 #ifndef __ICU_INTLTEST_TEXTFILE__
  14 #define __ICU_INTLTEST_TEXTFILE__
  15
  16 #include "intltest.h"
  17 #include "filestrm.h"
  18
  19 /**
  20  * This class implements access to a text data file located in the
  21  * icu/source/test/testdata/ directory.
  22  */
  23 class TextFile {
  24  public:
  25     /**
  26      * Open a file with the given name, in the given encoding, in the
  27      * ICU testdata directory. See textfile.cpp to determine if the
  28      * 'name' and 'encoding' parameters are aliased or copied.
  29      */
  30     TextFile(const char* name, const char* encoding, UErrorCode& ec);
  31
  32     virtual ~TextFile();
  33
  34     /**
  35      * Read a line terminated by ^J or ^M or ^M^J, and convert it from
  36      * this file's encoding to Unicode. The EOL character(s) are not
  37      * included in 'line'.
  38      * @return TRUE if a line was read, or FALSE if the EOF
  39      * was reached or an error occurred
  40      */
  41     UBool readLine(UnicodeString& line, UErrorCode& ec);
  42
  43     /**
  44      * Read a line, ignoring blank lines and lines that start with
  45      * '#'.  Trim leading white space.
  46      * @param trim if TRUE then remove leading Pattern_White_Space
  47      * @return TRUE if a line was read, or FALSE if the EOF
  48      * was reached or an error occurred
  49      */
  50     UBool readLineSkippingComments(UnicodeString& line, UErrorCode& ec,
  51                                    UBool trim = FALSE);
  52
  53     /**
  54      * Return the line number of the last line returned by readLine().
  55      */
  56     inline int32_t getLineNumber() const;
  57
  58  private:
  59     UBool ensureCapacity(int32_t capacity);
  60     UBool setBuffer(int32_t index, char c, UErrorCode& ec);
  61
  62     FileStream* file;
  63     char* name;
  64     char* encoding;
  65     char* buffer;
  66     int32_t capacity;
  67     int32_t lineNo;
  68 };
  69
  70 inline int32_t TextFile::getLineNumber() const {
  71     return lineNo;
  72 }
  73
  74 #endif