2 * Copyright 2001-2007 Adrian Thurston <thurston@complang.org>
5 /* This file is part of Ragel.
7 * Ragel is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * Ragel is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with Ragel; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
30 #include "rlgen-csharp.h"
36 /* Code generators. */
37 #include "tabcodegen.h"
38 #include "ftabcodegen.h"
39 #include "flatcodegen.h"
40 #include "fflatcodegen.h"
41 #include "gotocodegen.h"
42 #include "fgotocodegen.h"
43 #include "ipgotocodegen.h"
44 #include "splitcodegen.h"
55 /* Target language and output style. */
56 extern CodeStyleEnum codeStyle;
59 extern istream *inStream;
60 extern ostream *outStream;
61 extern output_filter *outFilter;
62 extern const char *outputFileName;
64 /* Graphviz dot file generation. */
65 extern bool graphvizDone;
67 extern int numSplitPartitions;
68 extern bool noLineDirectives;
70 /* Print a summary of the options. */
74 "usage: " PROGNAME " [options] file\n"
76 " -h, -H, -?, --help Print this usage and exit\n"
77 " -v, --version Print version information and exit\n"
78 " -o <file> Write output to <file>\n"
79 "code generation options:\n"
80 " -L Inhibit writing of #line directives\n"
81 "generated code style:\n"
82 " -T0 Table driven FSM (default)\n"
83 " -T1 Faster table driven FSM\n"
84 " -F0 Flat table driven FSM\n"
85 " -F1 Faster flat table-driven FSM\n"
86 " -G0 Goto-driven FSM\n"
87 " -G1 Faster goto-driven FSM\n"
91 /* Print version information. */
94 cout << "Ragel Code Generator for C#" << endl <<
95 "Version " VERSION << ", " PUBDATE << endl <<
96 "Copyright (c) 2001-2007 by Adrian Thurston" << endl;
99 ostream &csharp_error()
102 cerr << PROGNAME ": ";
107 * Callbacks invoked by the XML data parser.
110 /* Invoked by the parser when the root element is opened. */
111 ostream *csharpOpenOutput( char *inputFile )
113 if ( hostLang->lang != HostLang::CSharp ) {
114 csharp_error() << "this code generator is for C# only" << endl;
118 /* If the output format is code and no output file name is given, then
120 if ( outputFileName == 0 ) {
121 char *ext = findFileExtension( inputFile );
122 if ( ext != 0 && strcmp( ext, ".rh" ) == 0 )
123 outputFileName = fileNameFromStem( inputFile, ".h" );
125 outputFileName = fileNameFromStem( inputFile, ".cs" );
128 /* Make sure we are not writing to the same file as the input file. */
129 if ( outputFileName != 0 && strcmp( inputFile, outputFileName ) == 0 ) {
130 csharp_error() << "output file \"" << outputFileName <<
131 "\" is the same as the input file" << endl;
134 if ( outputFileName != 0 ) {
135 /* Create the filter on the output and open it. */
136 outFilter = new output_filter( outputFileName );
137 outFilter->open( outputFileName, ios::out|ios::trunc );
138 if ( !outFilter->is_open() ) {
139 csharp_error() << "error opening " << outputFileName << " for writing" << endl;
143 /* Open the output stream, attaching it to the filter. */
144 outStream = new ostream( outFilter );
147 /* Writing out ot std out. */
153 /* Invoked by the parser when a ragel definition is opened. */
154 CodeGenData *csharpMakeCodeGen( char *sourceFileName, char *fsmName,
155 ostream &out, bool wantComplete )
157 CodeGenData *codeGen = 0;
159 switch ( codeStyle ) {
161 codeGen = new CSharpTabCodeGen(out);
164 codeGen = new CSharpFTabCodeGen(out);
167 codeGen = new CSharpFlatCodeGen(out);
170 codeGen = new CSharpFFlatCodeGen(out);
173 codeGen = new CSharpGotoCodeGen(out);
176 codeGen = new CSharpFGotoCodeGen(out);
179 codeGen = new CSharpIpGotoCodeGen(out);
182 codeGen = new CSharpSplitCodeGen(out);
186 codeGen->sourceFileName = sourceFileName;
187 codeGen->fsmName = fsmName;
188 codeGen->wantComplete = wantComplete;