enum Type
{
Type_None, // incomplete (the last line of the file only)
- Type_Unix, // line is terminated with 'CR' = 0xA = 10 = '\n'
- Type_Dos, // 'LF' 'CR'
- Type_Mac // 'LF' = 0xD = 12 = '\r'
+ Type_Unix, // line is terminated with 'LF' = 0xA = 10 = '\n'
+ Type_Dos, // 'CR' 'LF'
+ Type_Mac // 'CR' = 0xD = 13 = '\r'
};
// default type for current platform (determined at compile time)
// accessors
// get the number of lines in the file
- size_t GetLineCount() const { return m_aLines.Count(); }
+ size_t GetLineCount() const { return m_aLines.Count(); }
// the returned line may be modified (but don't add CR/LF at the end!)
wxString& GetLine(size_t n) const { return m_aLines[n]; }
wxString& operator[](size_t n) const { return m_aLines[n]; }
+
+ // the current line has meaning only when you're using
+ // GetFirstLine()/GetNextLine() functions, it doesn't get updated when
+ // you're using "direct access" i.e. GetLine()
+ size_t GetCurrentLine() const { return m_nCurLine; }
+ void GoToLine(size_t n) { m_nCurLine = n; }
+ bool Eof() const { return m_nCurLine == m_aLines.Count(); }
+
+ // these methods allow more "iterator-like" traversal of the list of
+ // lines, i.e. you may write something like:
+ // for ( str = GetFirstLine(); !Eof(); str = GetNextLine() ) { ... }
+
+ // @@@ const is commented out because not all compilers understand
+ // 'mutable' keyword yet (m_nCurLine should be mutable)
+ wxString& GetFirstLine() /* const */ { return m_aLines[m_nCurLine = 0]; }
+ wxString& GetNextLine() /* const */ { return m_aLines[++m_nCurLine]; }
+ wxString& GetPrevLine() /* const */
+ { wxASSERT(m_nCurLine > 0); return m_aLines[--m_nCurLine]; }
+ wxString& GetLastLine() /* const */
+ { return m_aLines[m_nCurLine = m_aLines.Count() - 1]; }
+
// get the type of the line (see also GetEOL)
Type GetLineType(size_t n) const { return m_aTypes[n]; }
// guess the type of file (m_file is supposed to be opened)
bool Write(Type typeNew = Type_None);
// get the file termination string
- inline static const char *GetEOL(Type type = typeDefault)
- {
- switch ( type ) {
- case Type_None: return "";
- case Type_Unix: return "\n";
- case Type_Dos: return "\r\n";
- case Type_Mac: return "\r";
-
- default:
- wxFAIL_MSG("bad file type in wxTextFile::GetEOL.");
- return (const char *) NULL;
- }
- }
+ // Note: implementation moved to textfile to prevent warning due to switch.
+ static const char *GetEOL(Type type = typeDefault);
// dtor
~wxTextFile();
WX_DEFINE_ARRAY(Type, ArrayFileType);
wxFile m_file; // current file
+
ArrayFileType m_aTypes; // type of each line
wxArrayString m_aLines; // lines of file
+
+ size_t m_nCurLine; // number of current line in the file
+
wxString m_strFile; // name of the file
};