public void CheckUnmatchability() {
RegularExpression curRE;
int numStrings = 0;
for (int i = 0; i < getChoices().size(); i++) {
if (!(curRE = (RegularExpression) getChoices().get(i)).private_rexp
&&
// curRE instanceof RJustName &&
curRE.ordinal > 0
&& curRE.ordinal < ordinal
&& LexGen.lexStates[curRE.ordinal] == LexGen.lexStates[ordinal]) {
if (label != null)
JavaCCErrors.warning(
this,
"Regular Expression choice : " + curRE.label + " can never be matched as : " + label);
else
JavaCCErrors.warning(
this,
"Regular Expression choice : "
+ curRE.label
+ " can never be matched as token of kind : "
+ ordinal);
}
if (!curRE.private_rexp && curRE instanceof RStringLiteral) numStrings++;
}
}
protected static void addregexpr(final TokenProduction p) {
Integer ii;
rexprlist.add(p);
if (Options.getUserTokenManager()) {
if (p.lexStates == null || p.lexStates.length != 1 || !p.lexStates[0].equals("DEFAULT")) {
JavaCCErrors.warning(
p,
"Ignoring lexical state specifications since option "
+ "USER_TOKEN_MANAGER has been set to true.");
}
}
if (p.lexStates == null) {
return;
}
for (int i = 0; i < p.lexStates.length; i++) {
for (int j = 0; j < i; j++) {
if (p.lexStates[i].equals(p.lexStates[j])) {
JavaCCErrors.parse_error(
p, "Multiple occurrence of \"" + p.lexStates[i] + "\" in lexical state list.");
}
}
if (lexstate_S2I.get(p.lexStates[i]) == null) {
ii = new Integer(nextFreeLexState++);
lexstate_S2I.put(p.lexStates[i], ii);
lexstate_I2S.put(ii, p.lexStates[i]);
simple_tokens_table.put(p.lexStates[i], new java.util.Hashtable());
}
}
}
protected static void add_token_manager_decls(final Token t, final java.util.List decls) {
if (token_mgr_decls != null) {
JavaCCErrors.parse_error(t, "Multiple occurrence of \"TOKEN_MGR_DECLS\".");
} else {
token_mgr_decls = decls;
if (Options.getUserTokenManager()) {
JavaCCErrors.warning(
t,
"Ignoring declarations in \"TOKEN_MGR_DECLS\" since option "
+ "USER_TOKEN_MANAGER has been set to true.");
}
}
}
public static void createOutputDir(File outputDir) {
if (!outputDir.exists()) {
JavaCCErrors.warning(
"Output directory \"" + outputDir + "\" does not exist. Creating the directory.");
if (!outputDir.mkdirs()) {
JavaCCErrors.semantic_error("Cannot create the output directory : " + outputDir);
return;
}
}
if (!outputDir.isDirectory()) {
JavaCCErrors.semantic_error("\"" + outputDir + " is not a valid output directory.");
return;
}
if (!outputDir.canWrite()) {
JavaCCErrors.semantic_error(
"Cannot write to the output output directory : \"" + outputDir + "\"");
return;
}
}
