2 * Copyright 2001-2007 Adrian Thurston <thurston@cs.queensu.ca>
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
29 #include "rlgen-java.h"
35 #include "javacodegen.h"
47 istream *inStream = 0;
48 ostream *outStream = 0;
49 output_filter *outFilter = 0;
50 char *outputFileName = 0;
52 /* Graphviz dot file generation. */
53 bool graphvizDone = false;
55 int numSplitPartitions = 0;
56 bool printPrintables = false;
58 /* Print a summary of the options. */
62 "usage: " PROGNAME " [options] file\n"
64 " -h, -H, -?, --help Print this usage and exit\n"
65 " -v, --version Print version information and exit\n"
66 " -o <file> Write output to <file>\n"
70 /* Print version information. */
73 cout << "Ragel Code Generator for Java" << endl <<
74 "Version " VERSION << ", " PUBDATE << endl <<
75 "Copyright (c) 2001-2007 by Adrian Thurston" << endl;
81 cerr << PROGNAME ": ";
86 * Callbacks invoked by the XML data parser.
89 /* Invoked by the parser when the root element is opened. */
90 ostream *openOutput( char *inputFile )
92 if ( hostLangType != JavaCode ) {
93 error() << "this code generator is for Java only" << endl;
97 /* If the output format is code and no output file name is given, then
99 if ( outputFileName == 0 ) {
100 char *ext = findFileExtension( inputFile );
101 if ( ext != 0 && strcmp( ext, ".rh" ) == 0 )
102 outputFileName = fileNameFromStem( inputFile, ".h" );
104 outputFileName = fileNameFromStem( inputFile, ".java" );
107 /* Make sure we are not writing to the same file as the input file. */
108 if ( outputFileName != 0 && strcmp( inputFile, outputFileName ) == 0 ) {
109 error() << "output file \"" << outputFileName <<
110 "\" is the same as the input file" << endl;
113 if ( outputFileName != 0 ) {
114 /* Create the filter on the output and open it. */
115 outFilter = new output_filter( outputFileName );
116 outFilter->open( outputFileName, ios::out|ios::trunc );
117 if ( !outFilter->is_open() ) {
118 error() << "error opening " << outputFileName << " for writing" << endl;
122 /* Open the output stream, attaching it to the filter. */
123 outStream = new ostream( outFilter );
126 /* Writing out ot std out. */
132 /* Invoked by the parser when a ragel definition is opened. */
133 CodeGenData *makeCodeGen( char *sourceFileName, char *fsmName,
134 ostream &out, bool wantComplete )
136 CodeGenData *codeGen = new JavaTabCodeGen(out);
138 codeGen->sourceFileName = sourceFileName;
139 codeGen->fsmName = fsmName;
140 codeGen->wantComplete = wantComplete;
145 /* Main, process args and call yyparse to start scanning input. */
146 int main(int argc, char **argv)
148 ParamCheck pc("o:vHh?-:", argc, argv);
149 char *xmlInputFileName = 0;
151 while ( pc.check() ) {
152 switch ( pc.state ) {
153 case ParamCheck::match:
154 switch ( pc.parameter ) {
157 if ( *pc.parameterArg == 0 )
158 error() << "a zero length output file name was given" << endl;
159 else if ( outputFileName != 0 )
160 error() << "more than one output file name was given" << endl;
162 /* Ok, remember the output file name. */
163 outputFileName = pc.parameterArg;
167 /* Version and help. */
171 case 'H': case 'h': case '?':
175 if ( strcasecmp(pc.parameterArg, "help") == 0 ) {
179 else if ( strcasecmp(pc.parameterArg, "version") == 0 ) {
184 error() << "--" << pc.parameterArg <<
185 " is an invalid argument" << endl;
191 case ParamCheck::invalid:
192 error() << "-" << pc.parameter << " is an invalid argument" << endl;
195 case ParamCheck::noparam:
196 if ( *pc.curArg == 0 )
197 error() << "a zero length input file name was given" << endl;
198 else if ( xmlInputFileName != 0 )
199 error() << "more than one input file name was given" << endl;
201 /* OK, Remember the filename. */
202 xmlInputFileName = pc.curArg;
208 /* Bail on above errors. */
209 if ( gblErrorCount > 0 )
212 /* Open the input file for reading. */
213 if ( xmlInputFileName != 0 ) {
214 /* Open the input file for reading. */
215 ifstream *inFile = new ifstream( xmlInputFileName );
217 if ( ! inFile->is_open() )
218 error() << "could not open " << xmlInputFileName << " for reading" << endl;
221 xmlInputFileName = "<stdin>";
225 /* Bail on above errors. */
226 if ( gblErrorCount > 0 )
229 bool wantComplete = true;
230 bool outputActive = true;
232 /* Parse the input! */
233 xml_parse( *inStream, xmlInputFileName, outputActive, wantComplete );
235 /* If writing to a file, delete the ostream, causing it to flush.
236 * Standard out is flushed automatically. */
237 if ( outputFileName != 0 ) {
242 /* Finished, final check for errors.. */
243 if ( gblErrorCount > 0 ) {
244 /* If we opened an output file, remove it. */
245 if ( outputFileName != 0 )
246 unlink( outputFileName );