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//### This file created by BYACC 1.8(/Java extension 1.15)
//### Java capabilities added 7 Jan 97, Bob Jamison
//### Updated : 27 Nov 97 -- Bob Jamison, Joe Nieten
//### 01 Jan 98 -- Bob Jamison -- fixed generic semantic constructor
//### 01 Jun 99 -- Bob Jamison -- added Runnable support
//### 06 Aug 00 -- Bob Jamison -- made state variables class-global
//### 03 Jan 01 -- Bob Jamison -- improved flags, tracing
//### 16 May 01 -- Bob Jamison -- added custom stack sizing
//### 04 Mar 02 -- Yuval Oren -- improved java performance, added options
//### 14 Mar 02 -- Tomas Hurka -- -d support, static initializer workaround
//### Please send bug reports to [email protected]
//### static char yysccsid[] = "@(#)yaccpar 1.8 (Berkeley) 01/20/90";
package com.thoughtworks.qdox.parser.impl;
//#line 2 "E:\java-workspace\github\qdox\target\checkout/src/grammar/commentparser.y"
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
import java.io.IOException;
import com.thoughtworks.qdox.builder.Builder;
import com.thoughtworks.qdox.parser.Lexer;
import com.thoughtworks.qdox.parser.ParseException;
import com.thoughtworks.qdox.parser.structs.TagDef;
//#line 43 "DefaultJavaCommentParser.java"
public class DefaultJavaCommentParser
{
boolean yydebug; //do I want debug output?
int yynerrs; //number of errors so far
int yyerrflag; //was there an error?
int yychar; //the current working character
//########## MESSAGES ##########
//###############################################################
// method: debug
//###############################################################
void debug(String msg)
{
if (yydebug)
System.out.println(msg);
}
//########## STATE STACK ##########
final static int YYSTACKSIZE = 500; //maximum stack size
int statestk[] = new int[YYSTACKSIZE]; //state stack
int stateptr;
int stateptrmax; //highest index of stackptr
int statemax; //state when highest index reached
//###############################################################
// methods: state stack push,pop,drop,peek
//###############################################################
final void state_push(int state)
{
try {
stateptr++;
statestk[stateptr]=state;
}
catch (ArrayIndexOutOfBoundsException e) {
int oldsize = statestk.length;
int newsize = oldsize * 2;
int[] newstack = new int[newsize];
System.arraycopy(statestk,0,newstack,0,oldsize);
statestk = newstack;
statestk[stateptr]=state;
}
}
final int state_pop()
{
return statestk[stateptr--];
}
final void state_drop(int cnt)
{
stateptr -= cnt;
}
final int state_peek(int relative)
{
return statestk[stateptr-relative];
}
//###############################################################
// method: init_stacks : allocate and prepare stacks
//###############################################################
final boolean init_stacks()
{
stateptr = -1;
val_init();
return true;
}
//###############################################################
// method: dump_stacks : show n levels of the stacks
//###############################################################
void dump_stacks(int count)
{
int i;
System.out.println("=index==state====value= s:"+stateptr+" v:"+valptr);
for (i=0;i=YYSTACKSIZE)
return;
valstk[++valptr]=val;
}
DefaultJavaCommentParserVal val_pop()
{
if (valptr<0)
return new DefaultJavaCommentParserVal();
return valstk[valptr--];
}
void val_drop(int cnt)
{
int ptr;
ptr=valptr-cnt;
if (ptr<0)
return;
valptr = ptr;
}
DefaultJavaCommentParserVal val_peek(int relative)
{
int ptr;
ptr=valptr-relative;
if (ptr<0)
return new DefaultJavaCommentParserVal();
return valstk[ptr];
}
final DefaultJavaCommentParserVal dup_yyval(DefaultJavaCommentParserVal val)
{
DefaultJavaCommentParserVal dup = new DefaultJavaCommentParserVal();
dup.ival = val.ival;
dup.dval = val.dval;
dup.sval = val.sval;
dup.obj = val.obj;
return dup;
}
//#### end semantic value section ####
public final static short JAVADOCSTART=257;
public final static short JAVADOCEND=258;
public final static short JAVADOCTAG=259;
public final static short JAVADOCLINE=260;
public final static short YYERRCODE=256;
final static short yylhs[] = { -1,
0, 1, 1, 3, 5, 5, 4, 4, 6, 2,
2, 7, 7, 9, 8,
};
final static short yylen[] = { 2,
4, 0, 1, 1, 0, 1, 1, 2, 1, 0,
1, 1, 2, 0, 3,
};
final static short yydefred[] = { 0,
0, 0, 9, 0, 3, 0, 7, 14, 0, 0,
12, 8, 0, 1, 13, 0, 15,
};
final static short yydgoto[] = { 2,
4, 9, 5, 6, 17, 7, 10, 11, 13,
};
final static short yysindex[] = { -248,
-249, 0, 0, -247, 0, -249, 0, 0, -245, -247,
0, 0, -249, 0, 0, -249, 0,
};
final static short yyrindex[] = { 0,
-257, 0, 0, -244, 0, -255, 0, 0, 0, -243,
0, 0, -253, 0, 0, -251, 0,
};
final static short yygindex[] = { 0,
0, 0, 0, 3, 0, -6, 0, 7, 0,
};
final static int YYTABLESIZE=17;
static short yytable[];
static { yytable();}
static void yytable(){
yytable = new short[]{ 12,
2, 2, 4, 4, 5, 5, 6, 6, 1, 12,
3, 8, 14, 10, 11, 16, 15,
};
}
static short yycheck[];
static { yycheck(); }
static void yycheck() {
yycheck = new short[] { 6,
258, 259, 258, 259, 258, 259, 258, 259, 257, 16,
260, 259, 258, 258, 258, 13, 10,
};
}
final static short YYFINAL=2;
final static short YYMAXTOKEN=260;
final static String yyname[] = {
"end-of-file",null,null,null,null,null,null,null,null,null,null,null,null,null,
null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,
null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,
null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,
null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,
null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,
null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,
null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,
null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,
null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,
null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,
null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,
null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,
null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,
null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,
null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,
null,null,null,"JAVADOCSTART","JAVADOCEND","JAVADOCTAG","JAVADOCLINE",
};
final static String yyrule[] = {
"$accept : javadoc",
"javadoc : JAVADOCSTART javadocdescription_opt javadoctags_opt JAVADOCEND",
"javadocdescription_opt :",
"javadocdescription_opt : javadocdescription",
"javadocdescription : javadoctokens",
"javadoctokens_opt :",
"javadoctokens_opt : javadoctokens",
"javadoctokens : javadoctoken",
"javadoctokens : javadoctokens javadoctoken",
"javadoctoken : JAVADOCLINE",
"javadoctags_opt :",
"javadoctags_opt : javadoctags",
"javadoctags : javadoctag",
"javadoctags : javadoctags javadoctag",
"$$1 :",
"javadoctag : JAVADOCTAG $$1 javadoctokens_opt",
};
//#line 71 "E:\java-workspace\github\qdox\target\checkout/src/grammar/commentparser.y"
private Lexer lexer;
private Builder builder;
private int line;
private int column;
private boolean debugLexer;
private StringBuffer textBuffer = new StringBuffer();
public DefaultJavaCommentParser(Lexer lexer, Builder builder) {
this.lexer = lexer;
this.builder = builder;
}
public void setDebugParser(boolean debug) {
yydebug = debug;
}
public void setDebugLexer(boolean debug) {
debugLexer = debug;
}
private void appendToBuffer(String word) {
if (textBuffer.length() > 0) {
char lastChar = textBuffer.charAt(textBuffer.length() - 1);
if (!Character.isWhitespace(lastChar)) {
textBuffer.append(' ');
}
}
textBuffer.append(word);
}
private String buffer() {
String result = textBuffer.toString().trim();
textBuffer.setLength(0);
return result;
}
public boolean parse() {
return yyparse() == 0;
}
private int yylex() {
try {
final int result = lexer.lex();
yylval = new DefaultJavaCommentParserVal();
yylval.sval = lexer.text();
if (debugLexer) {
System.err.println("Token: " + yyname[result] + " \"" + yylval.sval + "\"");
}
return result;
}
catch(IOException e) {
return 0;
}
}
private void yyerror(String msg) {
throw new ParseException(msg, lexer.getLine(), lexer.getColumn());
}
//#line 263 "DefaultJavaCommentParser.java"
//###############################################################
// method: yylexdebug : check lexer state
//###############################################################
void yylexdebug(int state,int ch)
{
String s=null;
if (ch < 0) ch=0;
if (ch <= YYMAXTOKEN) //check index bounds
s = yyname[ch]; //now get it
if (s==null)
s = "illegal-symbol";
debug("state "+state+", reading "+ch+" ("+s+")");
}
//The following are now global, to aid in error reporting
int yyn; //next next thing to do
int yym; //
int yystate; //current parsing state from state table
String yys; //current token string
//###############################################################
// method: yyparse : parse input and execute indicated items
//###############################################################
int yyparse()
{
boolean doaction;
init_stacks();
yynerrs = 0;
yyerrflag = 0;
yychar = -1; //impossible char forces a read
yystate=0; //initial state
state_push(yystate); //save it
val_push(yylval); //save empty value
while (true) //until parsing is done, either correctly, or w/error
{
doaction=true;
if (yydebug) debug("loop");
//#### NEXT ACTION (from reduction table)
for (yyn=yydefred[yystate];yyn==0;yyn=yydefred[yystate])
{
if (yydebug) debug("yyn:"+yyn+" state:"+yystate+" yychar:"+yychar);
if (yychar < 0) //we want a char?
{
yychar = yylex(); //get next token
if (yydebug) debug(" next yychar:"+yychar);
//#### ERROR CHECK ####
if (yychar < 0) //it it didn't work/error
{
yychar = 0; //change it to default string (no -1!)
if (yydebug)
yylexdebug(yystate,yychar);
}
}//yychar<0
yyn = yysindex[yystate]; //get amount to shift by (shift index)
if ((yyn != 0) && (yyn += yychar) >= 0 &&
yyn <= YYTABLESIZE && yycheck[yyn] == yychar)
{
if (yydebug)
debug("state "+yystate+", shifting to state "+yytable[yyn]);
//#### NEXT STATE ####
yystate = yytable[yyn];//we are in a new state
state_push(yystate); //save it
val_push(yylval); //push our lval as the input for next rule
yychar = -1; //since we have 'eaten' a token, say we need another
if (yyerrflag > 0) //have we recovered an error?
--yyerrflag; //give ourselves credit
doaction=false; //but don't process yet
break; //quit the yyn=0 loop
}
yyn = yyrindex[yystate]; //reduce
if ((yyn !=0 ) && (yyn += yychar) >= 0 &&
yyn <= YYTABLESIZE && yycheck[yyn] == yychar)
{ //we reduced!
if (yydebug) debug("reduce");
yyn = yytable[yyn];
doaction=true; //get ready to execute
break; //drop down to actions
}
else //ERROR RECOVERY
{
if (yyerrflag==0)
{
yyerror("syntax error");
yynerrs++;
}
if (yyerrflag < 3) //low error count?
{
yyerrflag = 3;
while (true) //do until break
{
if (stateptr<0) //check for under & overflow here
{
yyerror("stack underflow. aborting..."); //note lower case 's'
return 1;
}
yyn = yysindex[state_peek(0)];
if ((yyn != 0) && (yyn += YYERRCODE) >= 0 &&
yyn <= YYTABLESIZE && yycheck[yyn] == YYERRCODE)
{
if (yydebug)
debug("state "+state_peek(0)+", error recovery shifting to state "+yytable[yyn]+" ");
yystate = yytable[yyn];
state_push(yystate);
val_push(yylval);
doaction=false;
break;
}
else
{
if (yydebug)
debug("error recovery discarding state "+state_peek(0)+" ");
if (stateptr<0) //check for under & overflow here
{
yyerror("Stack underflow. aborting..."); //capital 'S'
return 1;
}
state_pop();
val_pop();
}
}
}
else //discard this token
{
if (yychar == 0)
return 1; //yyabort
if (yydebug)
{
yys = null;
if (yychar <= YYMAXTOKEN) yys = yyname[yychar];
if (yys == null) yys = "illegal-symbol";
debug("state "+yystate+", error recovery discards token "+yychar+" ("+yys+")");
}
yychar = -1; //read another
}
}//end error recovery
}//yyn=0 loop
if (!doaction) //any reason not to proceed?
continue; //skip action
yym = yylen[yyn]; //get count of terminals on rhs
if (yydebug)
debug("state "+yystate+", reducing "+yym+" by rule "+yyn+" ("+yyrule[yyn]+")");
if (yym>0) //if count of rhs not 'nil'
yyval = val_peek(yym-1); //get current semantic value
yyval = dup_yyval(yyval); //duplicate yyval if ParserVal is used as semantic value
switch(yyn)
{
//########## USER-SUPPLIED ACTIONS ##########
case 4:
//#line 40 "E:\java-workspace\github\qdox\target\checkout/src/grammar/commentparser.y"
{
builder.addJavaDoc(buffer());
}
break;
case 9:
//#line 51 "E:\java-workspace\github\qdox\target\checkout/src/grammar/commentparser.y"
{
appendToBuffer(val_peek(0).sval);
}
break;
case 14:
//#line 62 "E:\java-workspace\github\qdox\target\checkout/src/grammar/commentparser.y"
{
line = lexer.getLine();
}
break;
case 15:
//#line 66 "E:\java-workspace\github\qdox\target\checkout/src/grammar/commentparser.y"
{
builder.addJavaDocTag(new TagDef(val_peek(2).sval.substring(1), buffer(), line));
}
break;
//#line 436 "DefaultJavaCommentParser.java"
//########## END OF USER-SUPPLIED ACTIONS ##########
}//switch
//#### Now let's reduce... ####
if (yydebug) debug("reduce");
state_drop(yym); //we just reduced yylen states
yystate = state_peek(0); //get new state
val_drop(yym); //corresponding value drop
yym = yylhs[yyn]; //select next TERMINAL(on lhs)
if (yystate == 0 && yym == 0)//done? 'rest' state and at first TERMINAL
{
if (yydebug) debug("After reduction, shifting from state 0 to state "+YYFINAL+"");
yystate = YYFINAL; //explicitly say we're done
state_push(YYFINAL); //and save it
val_push(yyval); //also save the semantic value of parsing
if (yychar < 0) //we want another character?
{
yychar = yylex(); //get next character
if (yychar<0) yychar=0; //clean, if necessary
if (yydebug)
yylexdebug(yystate,yychar);
}
if (yychar == 0) //Good exit (if lex returns 0 ;-)
break; //quit the loop--all DONE
}//if yystate
else //else not done yet
{ //get next state and push, for next yydefred[]
yyn = yygindex[yym]; //find out where to go
if ((yyn != 0) && (yyn += yystate) >= 0 &&
yyn <= YYTABLESIZE && yycheck[yyn] == yystate)
yystate = yytable[yyn]; //get new state
else
yystate = yydgoto[yym]; //else go to new defred
if (yydebug) debug("after reduction, shifting from state "+state_peek(0)+" to state "+yystate+"");
state_push(yystate); //going again, so push state & val...
val_push(yyval); //for next action
}
}//main loop
return 0;//yyaccept!!
}
//## end of method parse() ######################################
//## run() --- for Thread #######################################
//## The -Jnorun option was used ##
//## end of method run() ########################################
//## Constructors ###############################################
//## The -Jnoconstruct option was used ##
//###############################################################
}
//################### END OF CLASS ##############################
