2 * Copyright 2001-2005 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;
78 /* Total error count. */
79 int gblErrorCount = 0;
84 cerr << PROGNAME ": ";
89 * Callbacks invoked by the XML data parser.
92 /* Invoked by the parser when the root element is opened. */
93 ostream *openOutput( char *inputFile )
95 if ( hostLangType != JavaCode ) {
96 error() << "this code generator is for Java only" << endl;
100 /* If the output format is code and no output file name is given, then
102 if ( outputFileName == 0 ) {
103 char *ext = findFileExtension( inputFile );
104 if ( ext != 0 && strcmp( ext, ".rh" ) == 0 )
105 outputFileName = fileNameFromStem( inputFile, ".h" );
107 outputFileName = fileNameFromStem( inputFile, ".java" );
110 /* Make sure we are not writing to the same file as the input file. */
111 if ( outputFileName != 0 && strcmp( inputFile, outputFileName ) == 0 ) {
112 error() << "output file \"" << outputFileName <<
113 "\" is the same as the input file" << endl;
116 if ( outputFileName != 0 ) {
117 /* Create the filter on the output and open it. */
118 outFilter = new output_filter( outputFileName );
119 outFilter->open( outputFileName, ios::out|ios::trunc );
120 if ( !outFilter->is_open() ) {
121 error() << "error opening " << outputFileName << " for writing" << endl;
125 /* Open the output stream, attaching it to the filter. */
126 outStream = new ostream( outFilter );
129 /* Writing out ot std out. */
135 /* Invoked by the parser when a ragel definition is opened. */
136 CodeGenData *makeCodeGen( char *sourceFileName, char *fsmName,
137 ostream &out, bool wantComplete )
139 CodeGenData *codeGen = new JavaTabCodeGen(out);
141 codeGen->sourceFileName = sourceFileName;
142 codeGen->fsmName = fsmName;
143 codeGen->wantComplete = wantComplete;
148 /* Main, process args and call yyparse to start scanning input. */
149 int main(int argc, char **argv)
151 ParamCheck pc("o:vHh?-:", argc, argv);
152 char *xmlInputFileName = 0;
154 while ( pc.check() ) {
155 switch ( pc.state ) {
156 case ParamCheck::match:
157 switch ( pc.parameter ) {
160 if ( *pc.parameterArg == 0 )
161 error() << "a zero length output file name was given" << endl;
162 else if ( outputFileName != 0 )
163 error() << "more than one output file name was given" << endl;
165 /* Ok, remember the output file name. */
166 outputFileName = pc.parameterArg;
170 /* Version and help. */
174 case 'H': case 'h': case '?':
178 if ( strcasecmp(pc.parameterArg, "help") == 0 ) {
182 else if ( strcasecmp(pc.parameterArg, "version") == 0 ) {
187 error() << "--" << pc.parameterArg <<
188 " is an invalid argument" << endl;
194 case ParamCheck::invalid:
195 error() << "-" << pc.parameter << " is an invalid argument" << endl;
198 case ParamCheck::noparam:
199 if ( *pc.curArg == 0 )
200 error() << "a zero length input file name was given" << endl;
201 else if ( xmlInputFileName != 0 )
202 error() << "more than one input file name was given" << endl;
204 /* OK, Remember the filename. */
205 xmlInputFileName = pc.curArg;
211 /* Bail on above errors. */
212 if ( gblErrorCount > 0 )
215 /* Open the input file for reading. */
216 if ( xmlInputFileName != 0 ) {
217 /* Open the input file for reading. */
218 ifstream *inFile = new ifstream( xmlInputFileName );
220 if ( ! inFile->is_open() )
221 error() << "could not open " << xmlInputFileName << " for reading" << endl;
224 xmlInputFileName = "<stdin>";
228 /* Bail on above errors. */
229 if ( gblErrorCount > 0 )
232 bool wantComplete = true;
233 bool outputActive = true;
235 /* Parse the input! */
236 xml_parse( *inStream, xmlInputFileName, outputActive, wantComplete );
238 /* If writing to a file, delete the ostream, causing it to flush.
239 * Standard out is flushed automatically. */
240 if ( outputFileName != 0 ) {
245 /* Finished, final check for errors.. */
246 if ( gblErrorCount > 0 ) {
247 /* If we opened an output file, remove it. */
248 if ( outputFileName != 0 )
249 unlink( outputFileName );