/** Create DOM builder using JAXP libraries. */
static DocumentBuilder makeBuilder(boolean validate) throws IOException, SAXException {
DocumentBuilder builder;
DocumentBuilderFactory factory;
// create factory according to javax.xml.parsers.SAXParserFactory property
// or platform default (i.e. com.sun...)
try {
factory = DocumentBuilderFactory.newInstance();
factory.setValidating(validate);
factory.setNamespaceAware(false);
} catch (FactoryConfigurationError err) {
notifyFactoryErr(err, "javax.xml.parsers.DocumentBuilderFactory"); // NOI18N
throw err;
}
try {
builder = factory.newDocumentBuilder();
} catch (ParserConfigurationException ex) {
SAXException sex = new SAXException("Configuration exception."); // NOI18N
ErrorManager emgr = ErrorManager.getDefault();
emgr.annotate(sex, ex);
emgr.annotate(
sex,
"Can not create a DOM builder!\nCheck javax.xml.parsers.DocumentBuilderFactory property and the builder library presence on classpath."); // NOI18N
throw sex;
}
return builder;
}
public void rawDefineTemplate(String name, CompiledST code, Token defT) {
CompiledST prev = rawGetTemplate(name);
if (prev != null) {
if (!prev.isRegion) {
errMgr.compileTimeError(ErrorType.TEMPLATE_REDEFINITION, null, defT);
return;
}
if (prev.isRegion) {
if (code.regionDefType != ST.RegionType.IMPLICIT
&& prev.regionDefType == ST.RegionType.EMBEDDED) {
errMgr.compileTimeError(
ErrorType.EMBEDDED_REGION_REDEFINITION, null, defT, getUnMangledTemplateName(name));
return;
} else if (code.regionDefType == ST.RegionType.IMPLICIT
|| prev.regionDefType == ST.RegionType.EXPLICIT) {
errMgr.compileTimeError(
ErrorType.REGION_REDEFINITION, null, defT, getUnMangledTemplateName(name));
return;
}
}
}
code.nativeGroup = this;
code.templateDefStartToken = defT;
templates.put(name, code);
}
/** Annotate & notify the exception. */
private static void notifyNewSAXParserEx(Exception ex) {
ErrorManager emgr = ErrorManager.getDefault();
emgr.annotate(
ex,
"Can not create a SAX parser!\nCheck javax.xml.parsers.SAXParserFactory property features and the parser library presence on classpath."); // NOI18N
emgr.notify(ex);
}
/** Annotate & notify the error. */
private static void notifyFactoryErr(Error err, String property) {
ErrorManager emgr = ErrorManager.getDefault();
emgr.annotate(
err,
"Can not create a factory!\nCheck "
+ property
+ " property and the factory library presence on classpath."); // NOI18N
emgr.notify(err);
}
public String setOption(
Map<String, Object> options,
Set<String> legalOptions,
Grammar grammar,
String key,
Object value) {
if (!legalOptions.contains(key)) {
ErrorManager.grammarError(ErrorManager.MSG_ILLEGAL_OPTION, grammar, token, key);
return null;
}
if (value instanceof String) {
String vs = (String) value;
if (vs.charAt(0) == '"') {
value = vs.substring(1, vs.length() - 1); // strip quotes
}
}
if (key.equals("k")) {
grammar.numberOfManualLookaheadOptions++;
}
if (key.equals("backtrack") && value.toString().equals("true")) {
grammar.composite.getRootGrammar().atLeastOneBacktrackOption = true;
}
options.put(key, value);
return key;
}
public void sortGrammarFiles() throws IOException {
// System.out.println("Grammar names "+getGrammarFileNames());
Graph g = new Graph();
List<String> missingFiles = new ArrayList<String>();
for (String gfile : grammarFileNames) {
try {
GrammarSpelunker grammar = new GrammarSpelunker(inputDirectory, gfile);
grammar.parse();
String vocabName = grammar.getTokenVocab();
String grammarName = grammar.getGrammarName();
// Make all grammars depend on any tokenVocab options
if (vocabName != null) g.addEdge(gfile, vocabName + CodeGenerator.VOCAB_FILE_EXTENSION);
// Make all generated tokens files depend on their grammars
g.addEdge(grammarName + CodeGenerator.VOCAB_FILE_EXTENSION, gfile);
} catch (FileNotFoundException fnfe) {
ErrorManager.error(ErrorManager.MSG_CANNOT_OPEN_FILE, gfile);
missingFiles.add(gfile);
}
}
List<Object> sorted = g.sort();
// System.out.println("sorted="+sorted);
grammarFileNames.clear(); // wipe so we can give new ordered list
for (int i = 0; i < sorted.size(); i++) {
String f = (String) sorted.get(i);
if (missingFiles.contains(f)) continue;
if (!(f.endsWith(".g") || f.endsWith(".g3"))) continue;
grammarFileNames.add(f);
}
// System.out.println("new grammars="+grammarFileNames);
}
/**
* A list of dependency generators that are accumulated aaaas (and if) the tool is required to
* sort the provided grammars into build dependency order. protected Map<String,
* BuildDependencyGenerator> buildDependencyGenerators;
*/
public static void main(String[] args) {
Tool antlr = new Tool(args);
if (!exitNow) {
antlr.process();
if (ErrorManager.getNumErrors() > 0) {
System.exit(1);
}
System.exit(0);
}
}
/** Make name and alias for target. Replace any previous def of name */
public CompiledST defineTemplateAlias(Token aliasT, Token targetT) {
String alias = aliasT.getText();
String target = targetT.getText();
CompiledST targetCode = rawGetTemplate(target);
if (targetCode == null) {
errMgr.compileTimeError(ErrorType.ALIAS_TARGET_UNDEFINED, null, aliasT, alias, target);
return null;
}
templates.put(alias, targetCode);
return targetCode;
}
protected ST getEmbeddedInstanceOf(
Interpreter interp, ST enclosingInstance, int ip, String name) {
if (verbose) System.out.println("getEmbeddedInstanceOf(" + name + ")");
ST st = getInstanceOf(name);
if (st == null) {
errMgr.runTimeError(interp, enclosingInstance, ip, ErrorType.NO_SUCH_TEMPLATE, name);
return createStringTemplateInternally(new CompiledST());
}
// this is only called internally. wack any debug ST create events
if (trackCreationEvents) {
st.debugState.newSTEvent = null; // toss it out
}
return st;
}
/** Load template stream into this group */
public CompiledST loadTemplateFile(String prefix, String fileName, CharStream templateStream) {
GroupLexer lexer = new GroupLexer(templateStream);
CommonTokenStream tokens = new CommonTokenStream(lexer);
GroupParser parser = new GroupParser(tokens);
parser.group = this;
lexer.group = this;
try {
parser.templateDef(prefix);
} catch (RecognitionException re) {
errMgr.groupSyntaxError(ErrorType.SYNTAX_ERROR, fileName, re, re.getMessage());
}
String templateName = Misc.getFileNameNoSuffix(fileName);
if (prefix != null && prefix.length() > 0) templateName = prefix + "/" + templateName;
return rawGetTemplate(templateName);
}
/** Load a group file with full path fileName; it's relative to root by prefix. */
public void loadGroupFile(String prefix, String fileName) {
// System.out.println("load group file prefix="+prefix+", fileName="+fileName);
GroupParser parser = null;
try {
URL f = new URL(fileName);
ANTLRInputStream fs = new ANTLRInputStream(f.openStream(), encoding);
GroupLexer lexer = new GroupLexer(fs);
fs.name = fileName;
CommonTokenStream tokens = new CommonTokenStream(lexer);
parser = new GroupParser(tokens);
parser.group(this, prefix);
} catch (Exception e) {
errMgr.IOError(null, ErrorType.CANT_LOAD_GROUP_FILE, e, fileName);
}
}
protected void generateNFAs(Grammar g) {
DOTGenerator dotGenerator = new DOTGenerator(g);
Collection rules = g.getAllImportedRules();
rules.addAll(g.getRules());
for (Iterator itr = rules.iterator(); itr.hasNext(); ) {
Rule r = (Rule) itr.next();
try {
String dot = dotGenerator.getDOT(r.startState);
if (dot != null) {
writeDOTFile(g, r, dot);
}
} catch (IOException ioe) {
ErrorManager.error(ErrorManager.MSG_CANNOT_WRITE_FILE, ioe);
}
}
}
public void generateDFAs(Grammar g) {
for (int d = 1; d <= g.getNumberOfDecisions(); d++) {
DFA dfa = g.getLookaheadDFA(d);
if (dfa == null) {
continue; // not there for some reason, ignore
}
DOTGenerator dotGenerator = new DOTGenerator(g);
String dot = dotGenerator.getDOT(dfa.startState);
String dotFileName = g.name + "." + "dec-" + d;
if (g.implicitLexer) {
dotFileName = g.name + Grammar.grammarTypeToFileNameSuffix[g.type] + "." + "dec-" + d;
}
try {
writeDOTFile(g, dotFileName, dot);
} catch (IOException ioe) {
ErrorManager.error(ErrorManager.MSG_CANNOT_GEN_DOT_FILE, dotFileName, ioe);
}
}
}
private static void Xhelp() {
ErrorManager.info("ANTLR Parser Generator Version " + new Tool().VERSION);
System.err.println(" -Xgrtree print the grammar AST");
System.err.println(" -Xdfa print DFA as text ");
System.err.println(" -Xnoprune test lookahead against EBNF block exit branches");
System.err.println(" -Xnocollapse collapse incident edges into DFA states");
System.err.println(" -Xdbgconversion dump lots of info during NFA conversion");
System.err.println(" -Xmultithreaded run the analysis in 2 threads");
System.err.println(" -Xnomergestopstates do not merge stop states");
System.err.println(" -Xdfaverbose generate DFA states in DOT with NFA configs");
System.err.println(" -Xwatchconversion print a message for each NFA before converting");
System.err.println(
" -XdbgST put tags at start/stop of all templates in output");
System.err.println(
" -Xnfastates for nondeterminisms, list NFA states for each path");
System.err.println(
" -Xm m max number of rule invocations during conversion ["
+ NFAContext.MAX_SAME_RULE_INVOCATIONS_PER_NFA_CONFIG_STACK
+ "]");
System.err.println(
" -Xmaxdfaedges m max \"comfortable\" number of edges for single DFA state ["
+ DFA.MAX_STATE_TRANSITIONS_FOR_TABLE
+ "]");
System.err.println(
" -Xconversiontimeout t set NFA conversion timeout (ms) for each decision ["
+ DFA.MAX_TIME_PER_DFA_CREATION
+ "]");
System.err.println(
" -Xmaxinlinedfastates m max DFA states before table used rather than inlining ["
+ CodeGenerator.MADSI_DEFAULT
+ "]");
System.err.println(
" -Xmaxswitchcaselabels m don't generate switch() statements for dfas bigger than m ["
+ CodeGenerator.MSCL_DEFAULT
+ "]");
System.err.println(
" -Xminswitchalts m don't generate switch() statements for dfas smaller than m ["
+ CodeGenerator.MSA_DEFAULT
+ "]");
}
private static void help() {
ErrorManager.info("ANTLR Parser Generator Version " + new Tool().VERSION);
System.err.println("usage: java org.antlr.Tool [args] file.g [file2.g file3.g ...]");
System.err.println(
" -o outputDir specify output directory where all output is generated");
System.err.println(
" -fo outputDir same as -o but force even files with relative paths to dir");
System.err.println(" -lib dir specify location of token files");
System.err.println(" -depend generate file dependencies");
System.err.println(" -report print out a report about the grammar(s) processed");
System.err.println(" -print print out the grammar without actions");
System.err.println(" -debug generate a parser that emits debugging events");
System.err.println(
" -profile generate a parser that computes profiling information");
System.err.println(" -nfa generate an NFA for each rule");
System.err.println(" -dfa generate a DFA for each decision point");
System.err.println(" -message-format name specify output style for messages");
System.err.println(" -verbose generate ANTLR version and other information");
System.err.println(" -make only build if generated files older than grammar");
System.err.println(" -version print the version of ANTLR and exit.");
System.err.println(" -X display extended argument list");
}
public CompiledST defineRegion(
String enclosingTemplateName, Token regionT, String template, Token templateToken) {
String name = regionT.getText();
template = Misc.trimOneStartingNewline(template);
template = Misc.trimOneTrailingNewline(template);
CompiledST code = compile(getFileName(), enclosingTemplateName, null, template, templateToken);
String mangled = getMangledRegionName(enclosingTemplateName, name);
if (lookupTemplate(mangled) == null) {
errMgr.compileTimeError(
ErrorType.NO_SUCH_REGION, templateToken, regionT, enclosingTemplateName, name);
return new CompiledST();
}
code.name = mangled;
code.isRegion = true;
code.regionDefType = ST.RegionType.EXPLICIT;
code.templateDefStartToken = regionT;
rawDefineTemplate(mangled, code, regionT);
code.defineArgDefaultValueTemplates(this);
code.defineImplicitlyDefinedTemplates(this);
return code;
}
private static void version() {
ErrorManager.info("ANTLR Parser Generator Version " + new Tool().VERSION);
}
/**
* Import template files, directories, and group files. Priority is given to templates defined in
* the current group; this, in effect, provides inheritance. Polymorphism is in effect so that if
* an inherited template references template t() then we search for t() in the subgroup first.
*
* <p>If you specify an absolute file name or directory name, the import statement uses that
* directly. If it is not an absolute path, we look that entity up in the directory holding the
* group that initiates the import. If file or directory is not in that directory, then we load
* using the classpath.
*
* <p>Templates are loaded on-demand from import dirs. Imported groups are loaded on-demand when
* searching for a template.
*
* <p>The listener of this group is passed to the import group so errors found while loading
* imported element are sent to listener of this group.
*/
public void importTemplates(Token fileNameToken) {
String fileName = fileNameToken.getText();
// do nothing upon syntax error
if (fileName == null || fileName.equals("<missing STRING>")) return;
fileName = Misc.strip(fileName, 1);
// System.out.println("import "+fileName);
boolean isGroupFile = fileName.endsWith(".stg");
boolean isTemplateFile = fileName.endsWith(".st");
boolean isGroupDir = !(isGroupFile || isTemplateFile);
STGroup g = null;
File f = new File(fileName);
if (f.isAbsolute()) { // load directly if absolute
if (isTemplateFile) {
g = new STGroup();
g.setListener(this.getListener());
g.loadAbsoluteTemplateFile(fileName);
} else if (isGroupFile) {
g = new STGroupFile(fileName, delimiterStartChar, delimiterStopChar);
g.setListener(this.getListener());
} else if (isGroupDir) {
g = new STGroupDir(fileName, delimiterStartChar, delimiterStopChar);
g.setListener(this.getListener());
}
importTemplates(g);
return;
}
// it's a relative name; search path is working dir, g.stg's dir, CLASSPATH
URL thisRoot = getRootDirURL();
URL fileUnderRoot = null;
// System.out.println("thisRoot="+thisRoot);
try {
fileUnderRoot = new URL(thisRoot + "/" + fileName);
} catch (MalformedURLException mfe) {
errMgr.internalError(null, "can't build URL for " + thisRoot + "/" + fileName, mfe);
return;
}
if (isTemplateFile) {
g = new STGroup();
g.setListener(this.getListener());
URL fileURL;
if (Misc.urlExists(fileUnderRoot)) fileURL = fileUnderRoot;
else fileURL = getURL(fileName); // try CLASSPATH
if (fileURL != null) {
try {
InputStream s = fileURL.openStream();
ANTLRInputStream templateStream = new ANTLRInputStream(s);
templateStream.name = fileName;
CompiledST code = g.loadTemplateFile("", fileName, templateStream);
if (code == null) g = null;
} catch (IOException ioe) {
errMgr.internalError(null, "can't read from " + fileURL, ioe);
g = null;
}
} else {
g = null;
}
} else if (isGroupFile) {
// System.out.println("look for fileUnderRoot: "+fileUnderRoot);
if (Misc.urlExists(fileUnderRoot)) {
g = new STGroupFile(fileUnderRoot, encoding, delimiterStartChar, delimiterStopChar);
g.setListener(this.getListener());
} else {
g = new STGroupFile(fileName, delimiterStartChar, delimiterStopChar);
g.setListener(this.getListener());
}
} else if (isGroupDir) {
// System.out.println("try dir "+fileUnderRoot);
if (Misc.urlExists(fileUnderRoot)) {
g = new STGroupDir(fileUnderRoot, encoding, delimiterStartChar, delimiterStopChar);
g.setListener(this.getListener());
} else {
// try in CLASSPATH
// System.out.println("try dir in CLASSPATH "+fileName);
g = new STGroupDir(fileName, delimiterStartChar, delimiterStopChar);
g.setListener(this.getListener());
}
}
if (g == null) {
errMgr.compileTimeError(ErrorType.CANT_IMPORT, null, fileNameToken, fileName);
} else {
importTemplates(g);
}
}
/** Annotate & notify the error. */
private static void notifyException(Throwable err) {
ErrorManager emgr = ErrorManager.getDefault();
emgr.notify(emgr.INFORMATIONAL, err);
}
/**
* Returns the current setting of the message format descriptor
*
* @return Current message format
*/
public String getMessageFormat() {
return ErrorManager.getMessageFormat().toString();
}
/**
* Returns the number of errors that the analysis/processing threw up.
*
* @return Error count
*/
public int getNumErrors() {
return ErrorManager.getNumErrors();
}
/**
* Set the message format to one of ANTLR, gnu, vs2005
*
* @param format
*/
public void setMessageFormat(String format) {
ErrorManager.setFormat(format);
}
public void processArgs(String[] args) {
if (isVerbose()) {
ErrorManager.info("ANTLR Parser Generator Version " + VERSION);
showBanner = false;
}
if (args == null || args.length == 0) {
help();
return;
}
for (int i = 0; i < args.length; i++) {
if (args[i].equals("-o") || args[i].equals("-fo")) {
if (i + 1 >= args.length) {
System.err.println("missing output directory with -fo/-o option; ignoring");
} else {
if (args[i].equals("-fo")) { // force output into dir
setForceAllFilesToOutputDir(true);
}
i++;
outputDirectory = args[i];
if (outputDirectory.endsWith("/") || outputDirectory.endsWith("\\")) {
outputDirectory = outputDirectory.substring(0, getOutputDirectory().length() - 1);
}
File outDir = new File(outputDirectory);
haveOutputDir = true;
if (outDir.exists() && !outDir.isDirectory()) {
ErrorManager.error(ErrorManager.MSG_OUTPUT_DIR_IS_FILE, outputDirectory);
setLibDirectory(".");
}
}
} else if (args[i].equals("-lib")) {
if (i + 1 >= args.length) {
System.err.println("missing library directory with -lib option; ignoring");
} else {
i++;
setLibDirectory(args[i]);
if (getLibraryDirectory().endsWith("/") || getLibraryDirectory().endsWith("\\")) {
setLibDirectory(getLibraryDirectory().substring(0, getLibraryDirectory().length() - 1));
}
File outDir = new File(getLibraryDirectory());
if (!outDir.exists()) {
ErrorManager.error(ErrorManager.MSG_DIR_NOT_FOUND, getLibraryDirectory());
setLibDirectory(".");
}
}
} else if (args[i].equals("-nfa")) {
setGenerate_NFA_dot(true);
} else if (args[i].equals("-dfa")) {
setGenerate_DFA_dot(true);
} else if (args[i].equals("-debug")) {
setDebug(true);
} else if (args[i].equals("-trace")) {
setTrace(true);
} else if (args[i].equals("-report")) {
setReport(true);
} else if (args[i].equals("-profile")) {
setProfile(true);
} else if (args[i].equals("-print")) {
setPrintGrammar(true);
} else if (args[i].equals("-depend")) {
setDepend(true);
} else if (args[i].equals("-verbose")) {
setVerbose(true);
} else if (args[i].equals("-version")) {
version();
exitNow = true;
} else if (args[i].equals("-make")) {
setMake(true);
} else if (args[i].equals("-message-format")) {
if (i + 1 >= args.length) {
System.err.println("missing output format with -message-format option; using default");
} else {
i++;
ErrorManager.setFormat(args[i]);
}
} else if (args[i].equals("-Xgrtree")) {
internalOption_PrintGrammarTree = true; // print grammar tree
} else if (args[i].equals("-Xdfa")) {
internalOption_PrintDFA = true;
} else if (args[i].equals("-Xnoprune")) {
DFAOptimizer.PRUNE_EBNF_EXIT_BRANCHES = false;
} else if (args[i].equals("-Xnocollapse")) {
DFAOptimizer.COLLAPSE_ALL_PARALLEL_EDGES = false;
} else if (args[i].equals("-Xdbgconversion")) {
NFAToDFAConverter.debug = true;
} else if (args[i].equals("-Xmultithreaded")) {
NFAToDFAConverter.SINGLE_THREADED_NFA_CONVERSION = false;
} else if (args[i].equals("-Xnomergestopstates")) {
DFAOptimizer.MERGE_STOP_STATES = false;
} else if (args[i].equals("-Xdfaverbose")) {
internalOption_ShowNFAConfigsInDFA = true;
} else if (args[i].equals("-Xwatchconversion")) {
internalOption_watchNFAConversion = true;
} else if (args[i].equals("-XdbgST")) {
CodeGenerator.EMIT_TEMPLATE_DELIMITERS = true;
} else if (args[i].equals("-Xmaxinlinedfastates")) {
if (i + 1 >= args.length) {
System.err.println("missing max inline dfa states -Xmaxinlinedfastates option; ignoring");
} else {
i++;
CodeGenerator.MAX_ACYCLIC_DFA_STATES_INLINE = Integer.parseInt(args[i]);
}
} else if (args[i].equals("-Xmaxswitchcaselabels")) {
if (i + 1 >= args.length) {
System.err.println(
"missing max switch case labels -Xmaxswitchcaselabels option; ignoring");
} else {
i++;
CodeGenerator.MAX_SWITCH_CASE_LABELS = Integer.parseInt(args[i]);
}
} else if (args[i].equals("-Xminswitchalts")) {
if (i + 1 >= args.length) {
System.err.println("missing min switch alternatives -Xminswitchalts option; ignoring");
} else {
i++;
CodeGenerator.MIN_SWITCH_ALTS = Integer.parseInt(args[i]);
}
} else if (args[i].equals("-Xm")) {
if (i + 1 >= args.length) {
System.err.println("missing max recursion with -Xm option; ignoring");
} else {
i++;
NFAContext.MAX_SAME_RULE_INVOCATIONS_PER_NFA_CONFIG_STACK = Integer.parseInt(args[i]);
}
} else if (args[i].equals("-Xmaxdfaedges")) {
if (i + 1 >= args.length) {
System.err.println("missing max number of edges with -Xmaxdfaedges option; ignoring");
} else {
i++;
DFA.MAX_STATE_TRANSITIONS_FOR_TABLE = Integer.parseInt(args[i]);
}
} else if (args[i].equals("-Xconversiontimeout")) {
if (i + 1 >= args.length) {
System.err.println("missing max time in ms -Xconversiontimeout option; ignoring");
} else {
i++;
DFA.MAX_TIME_PER_DFA_CREATION = Integer.parseInt(args[i]);
}
} else if (args[i].equals("-Xnfastates")) {
DecisionProbe.verbose = true;
} else if (args[i].equals("-X")) {
Xhelp();
} else {
if (args[i].charAt(0) != '-') {
// Must be the grammar file
addGrammarFile(args[i]);
}
}
}
}
public void process() {
boolean exceptionWhenWritingLexerFile = false;
String lexerGrammarFileName = null; // necessary at this scope to have access in the catch below
// Have to be tricky here when Maven or build tools call in and must new Tool()
// before setting options. The banner won't display that way!
if (isVerbose() && showBanner) {
ErrorManager.info("ANTLR Parser Generator Version " + VERSION);
showBanner = false;
}
try {
sortGrammarFiles(); // update grammarFileNames
} catch (Exception e) {
ErrorManager.error(ErrorManager.MSG_INTERNAL_ERROR, e);
} catch (Error e) {
ErrorManager.error(ErrorManager.MSG_INTERNAL_ERROR, e);
}
for (String grammarFileName : grammarFileNames) {
// If we are in make mode (to support build tools like Maven) and the
// file is already up to date, then we do not build it (and in verbose mode
// we will say so).
if (make) {
try {
if (!buildRequired(grammarFileName)) continue;
} catch (Exception e) {
ErrorManager.error(ErrorManager.MSG_INTERNAL_ERROR, e);
}
}
if (isVerbose() && !isDepend()) {
System.out.println(grammarFileName);
}
try {
if (isDepend()) {
BuildDependencyGenerator dep = new BuildDependencyGenerator(this, grammarFileName);
/*
List outputFiles = dep.getGeneratedFileList();
List dependents = dep.getDependenciesFileList();
System.out.println("output: "+outputFiles);
System.out.println("dependents: "+dependents);
*/
System.out.println(dep.getDependencies());
continue;
}
Grammar grammar = getRootGrammar(grammarFileName);
// we now have all grammars read in as ASTs
// (i.e., root and all delegates)
grammar.composite.assignTokenTypes();
grammar.composite.defineGrammarSymbols();
grammar.composite.createNFAs();
generateRecognizer(grammar);
if (isPrintGrammar()) {
grammar.printGrammar(System.out);
}
if (isReport()) {
GrammarReport greport = new GrammarReport(grammar);
System.out.println(greport.toString());
// print out a backtracking report too (that is not encoded into log)
System.out.println(greport.getBacktrackingReport());
// same for aborted NFA->DFA conversions
System.out.println(greport.getAnalysisTimeoutReport());
}
if (isProfile()) {
GrammarReport greport = new GrammarReport(grammar);
Stats.writeReport(GrammarReport.GRAMMAR_STATS_FILENAME, greport.toNotifyString());
}
// now handle the lexer if one was created for a merged spec
String lexerGrammarStr = grammar.getLexerGrammar();
// System.out.println("lexer grammar:\n"+lexerGrammarStr);
if (grammar.type == Grammar.COMBINED && lexerGrammarStr != null) {
lexerGrammarFileName = grammar.getImplicitlyGeneratedLexerFileName();
try {
Writer w = getOutputFile(grammar, lexerGrammarFileName);
w.write(lexerGrammarStr);
w.close();
} catch (IOException e) {
// emit different error message when creating the implicit lexer fails
// due to write permission error
exceptionWhenWritingLexerFile = true;
throw e;
}
try {
StringReader sr = new StringReader(lexerGrammarStr);
Grammar lexerGrammar = new Grammar();
lexerGrammar.composite.watchNFAConversion = internalOption_watchNFAConversion;
lexerGrammar.implicitLexer = true;
lexerGrammar.setTool(this);
File lexerGrammarFullFile =
new File(getFileDirectory(lexerGrammarFileName), lexerGrammarFileName);
lexerGrammar.setFileName(lexerGrammarFullFile.toString());
lexerGrammar.importTokenVocabulary(grammar);
lexerGrammar.parseAndBuildAST(sr);
sr.close();
lexerGrammar.composite.assignTokenTypes();
lexerGrammar.composite.defineGrammarSymbols();
lexerGrammar.composite.createNFAs();
generateRecognizer(lexerGrammar);
} finally {
// make sure we clean up
if (deleteTempLexer) {
File outputDir = getOutputDirectory(lexerGrammarFileName);
File outputFile = new File(outputDir, lexerGrammarFileName);
outputFile.delete();
}
}
}
} catch (IOException e) {
if (exceptionWhenWritingLexerFile) {
ErrorManager.error(ErrorManager.MSG_CANNOT_WRITE_FILE, lexerGrammarFileName, e);
} else {
ErrorManager.error(ErrorManager.MSG_CANNOT_OPEN_FILE, grammarFileName);
}
} catch (Exception e) {
ErrorManager.error(ErrorManager.MSG_INTERNAL_ERROR, grammarFileName, e);
}
/*
finally {
System.out.println("creates="+ Interval.creates);
System.out.println("hits="+ Interval.hits);
System.out.println("misses="+ Interval.misses);
System.out.println("outOfRange="+ Interval.outOfRange);
}
*/
}
}
