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c801d85f | 1 | /////////////////////////////////////////////////////////////////////////////// |
a3a584a7 | 2 | // Name: src/common/textfile.cpp |
c801d85f KB |
3 | // Purpose: implementation of wxTextFile class |
4 | // Author: Vadim Zeitlin | |
ba7f9a90 | 5 | // Modified by: |
c801d85f KB |
6 | // Created: 03.04.98 |
7 | // RCS-ID: $Id$ | |
8 | // Copyright: (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr> | |
65571936 | 9 | // Licence: wxWindows licence |
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10 | /////////////////////////////////////////////////////////////////////////////// |
11 | ||
12 | // ============================================================================ | |
13 | // headers | |
14 | // ============================================================================ | |
15 | ||
14f355c2 | 16 | #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) |
a1b82138 | 17 | #pragma implementation "textfile.h" |
c801d85f KB |
18 | #endif |
19 | ||
20 | #include "wx/wxprec.h" | |
21 | ||
22 | #ifdef __BORLANDC__ | |
a1b82138 | 23 | #pragma hdrstop |
c801d85f KB |
24 | #endif //__BORLANDC__ |
25 | ||
a3a584a7 | 26 | #if !wxUSE_FILE || !wxUSE_TEXTBUFFER |
a1b82138 VZ |
27 | #undef wxUSE_TEXTFILE |
28 | #define wxUSE_TEXTFILE 0 | |
29 | #endif // wxUSE_FILE | |
30 | ||
a3a584a7 VZ |
31 | #if wxUSE_TEXTFILE |
32 | ||
ce4169a4 | 33 | #ifndef WX_PRECOMP |
68c97af3 VZ |
34 | #include "wx/string.h" |
35 | #include "wx/intl.h" | |
36 | #include "wx/file.h" | |
37 | #include "wx/log.h" | |
ce4169a4 RR |
38 | #endif |
39 | ||
a3a584a7 | 40 | #include "wx/textfile.h" |
68c97af3 | 41 | #include "wx/filename.h" |
c801d85f KB |
42 | |
43 | // ============================================================================ | |
44 | // wxTextFile class implementation | |
45 | // ============================================================================ | |
46 | ||
a3a584a7 VZ |
47 | wxTextFile::wxTextFile(const wxString& strFileName) |
48 | : wxTextBuffer(strFileName) | |
a1b82138 | 49 | { |
a1b82138 VZ |
50 | } |
51 | ||
c801d85f KB |
52 | |
53 | // ---------------------------------------------------------------------------- | |
54 | // file operations | |
55 | // ---------------------------------------------------------------------------- | |
56 | ||
a3a584a7 | 57 | bool wxTextFile::OnExists() const |
ef8d96c2 | 58 | { |
a3a584a7 | 59 | return wxFile::Exists(m_strBufferName); |
ef8d96c2 VZ |
60 | } |
61 | ||
1b6dea5d | 62 | |
a3a584a7 | 63 | bool wxTextFile::OnOpen(const wxString &strBufferName, wxTextBufferOpenMode OpenMode) |
1b6dea5d | 64 | { |
77f859c3 VZ |
65 | wxFile::OpenMode FileOpenMode; |
66 | ||
67 | switch ( OpenMode ) | |
68 | { | |
69 | default: | |
70 | wxFAIL_MSG( _T("unknown open mode in wxTextFile::Open") ); | |
71 | // fall through | |
27752aab | 72 | |
a3a584a7 VZ |
73 | case ReadAccess : |
74 | FileOpenMode = wxFile::read; | |
75 | break; | |
77f859c3 | 76 | |
a3a584a7 VZ |
77 | case WriteAccess : |
78 | FileOpenMode = wxFile::write; | |
79 | break; | |
77f859c3 | 80 | } |
1b6dea5d | 81 | |
a3a584a7 | 82 | return m_file.Open(strBufferName.c_str(), FileOpenMode); |
c801d85f KB |
83 | } |
84 | ||
c801d85f | 85 | |
a3a584a7 | 86 | bool wxTextFile::OnClose() |
c801d85f | 87 | { |
a3a584a7 | 88 | return m_file.Close(); |
c801d85f KB |
89 | } |
90 | ||
a3a584a7 VZ |
91 | |
92 | bool wxTextFile::OnRead(wxMBConv& conv) | |
c801d85f | 93 | { |
d9ade1df VS |
94 | // file should be opened and we must be in it's beginning |
95 | wxASSERT( m_file.IsOpened() && m_file.Tell() == 0 ); | |
adfed1ca | 96 | |
d9ade1df VS |
97 | char *strBuf, *strPtr, *strEnd; |
98 | char ch, chLast = '\0'; | |
99 | char buf[1024]; | |
67c20e13 | 100 | wxFileSize_t nRead; |
c801d85f | 101 | |
d9ade1df VS |
102 | strPtr = strBuf = new char[1024]; |
103 | strEnd = strBuf + 1024; | |
ba7f9a90 | 104 | |
cb719f2e | 105 | do |
d9ade1df VS |
106 | { |
107 | nRead = m_file.Read(buf, WXSIZEOF(buf)); | |
cb719f2e | 108 | if ( nRead == wxInvalidOffset ) |
d9ade1df VS |
109 | { |
110 | // read error (error message already given in wxFile::Read) | |
111 | delete[] strBuf; | |
cb719f2e | 112 | return false; |
d9ade1df VS |
113 | } |
114 | ||
67c20e13 | 115 | for (wxFileSize_t n = 0; n < nRead; n++) |
d9ade1df VS |
116 | { |
117 | ch = buf[n]; | |
cb719f2e | 118 | switch ( ch ) |
d9ade1df VS |
119 | { |
120 | case '\n': | |
121 | // Dos/Unix line termination | |
122 | *strPtr = '\0'; | |
cb719f2e | 123 | AddLine(wxString(strBuf, conv), |
d9ade1df VS |
124 | chLast == '\r' ? wxTextFileType_Dos |
125 | : wxTextFileType_Unix); | |
126 | strPtr = strBuf; | |
127 | chLast = '\n'; | |
128 | break; | |
129 | ||
130 | case '\r': | |
cb719f2e | 131 | if ( chLast == '\r' ) |
d9ade1df VS |
132 | { |
133 | // Mac empty line | |
134 | AddLine(wxEmptyString, wxTextFileType_Mac); | |
135 | } | |
136 | else | |
137 | chLast = '\r'; | |
138 | break; | |
139 | ||
140 | default: | |
141 | if ( chLast == '\r' ) | |
142 | { | |
143 | // Mac line termination | |
144 | *strPtr = '\0'; | |
145 | AddLine(wxString(strBuf, conv), wxTextFileType_Mac); | |
146 | chLast = ch; | |
147 | strPtr = strBuf; | |
148 | *(strPtr++) = ch; | |
149 | } | |
cb719f2e | 150 | else |
d9ade1df VS |
151 | { |
152 | // add to the current line | |
153 | *(strPtr++) = ch; | |
154 | if ( strPtr == strEnd ) | |
155 | { | |
156 | // we must allocate more memory | |
157 | size_t size = strEnd - strBuf; | |
158 | char *newBuf = new char[size + 1024]; | |
159 | memcpy(newBuf, strBuf, size); | |
160 | delete[] strBuf; | |
161 | strBuf = newBuf; | |
162 | strEnd = strBuf + size + 1024; | |
163 | strPtr = strBuf + size; | |
164 | } | |
165 | } | |
166 | } | |
167 | } | |
168 | } while ( nRead == WXSIZEOF(buf) ); | |
169 | ||
170 | // anything in the last line? | |
cb719f2e | 171 | if ( strPtr != strBuf ) |
d9ade1df VS |
172 | { |
173 | *strPtr = '\0'; | |
cb719f2e | 174 | AddLine(wxString(strBuf, conv), |
d9ade1df | 175 | wxTextFileType_None); // no line terminator |
c801d85f | 176 | } |
c801d85f | 177 | |
d9ade1df | 178 | delete[] strBuf; |
cb719f2e | 179 | return true; |
c801d85f KB |
180 | } |
181 | ||
f42d2aba | 182 | |
a3a584a7 | 183 | bool wxTextFile::OnWrite(wxTextFileType typeNew, wxMBConv& conv) |
c801d85f | 184 | { |
68c97af3 | 185 | wxFileName fn = m_strBufferName; |
baed1077 JS |
186 | |
187 | // We do NOT want wxPATH_NORM_CASE here, or the case will not | |
188 | // be preserved. | |
68c97af3 | 189 | if ( !fn.IsAbsolute() ) |
32a0d013 VS |
190 | fn.Normalize(wxPATH_NORM_ENV_VARS | wxPATH_NORM_DOTS | wxPATH_NORM_TILDE | |
191 | wxPATH_NORM_ABSOLUTE | wxPATH_NORM_LONG); | |
68c97af3 | 192 | |
deab4540 | 193 | wxTempFile fileTmp(fn.GetFullPath()); |
c801d85f | 194 | |
a3a584a7 VZ |
195 | if ( !fileTmp.IsOpened() ) { |
196 | wxLogError(_("can't write buffer '%s' to disk."), m_strBufferName.c_str()); | |
cb719f2e | 197 | return false; |
a3a584a7 | 198 | } |
c801d85f | 199 | |
a3a584a7 VZ |
200 | size_t nCount = GetLineCount(); |
201 | for ( size_t n = 0; n < nCount; n++ ) { | |
202 | fileTmp.Write(GetLine(n) + | |
203 | GetEOL(typeNew == wxTextFileType_None ? GetLineType(n) | |
204 | : typeNew), | |
205 | conv); | |
206 | } | |
c801d85f | 207 | |
a3a584a7 VZ |
208 | // replace the old file with this one |
209 | return fileTmp.Commit(); | |
ba7f9a90 | 210 | } |
6164d85e | 211 | |
a1b82138 | 212 | #endif // wxUSE_TEXTFILE |
6164d85e | 213 |