public bool addSubTree(int q_index, SSYaccStackElement q_ele)
{
if ((q_index < 0) || (q_index >= this.m_subTreeSize))
{
return(false);
}
this.m_subTree[q_index] = q_ele;
return(true);
}
public bool doReduce()
{
this.m_element = this.reduce(this.m_production, this.m_productionSize);
if (this.m_element == null)
{
return(true);
}
this.pop(this.m_productionSize);
return(this.goTo(this.m_leftside));
}
public SSYaccStackElement addSubTree()
{
SSYaccStackElement element = this.stackElement();
element.createSubTree(this.m_productionSize);
for (int i = 0; i < this.m_productionSize; i++)
{
element.addSubTree(i, this.elementFromProduction(i));
}
return(element);
}
public bool doShift()
{
this.m_element = this.shift(this.m_lookahead);
if (this.m_element == null)
{
return(true);
}
this.m_element.setLexeme(this.m_lookahead);
this.m_element.setState(this.m_state);
this.push();
return(this.doGetLexeme(true));
}
public SSYacc(SSYaccTable q_table, SSLex q_lex)
{
this.m_lex = q_lex;
this.m_abort = false;
this.m_error = false;
this.m_table = q_table;
this.m_endOfInput = false;
this.m_endLexeme = new SSLexLexeme("eof", -1);
this.m_endLexeme.setToken(-1);
this.m_stack = new SSYaccStack(5, 5);
this.m_lexemeCache = new SSYaccCache();
this.m_element = this.stackElement();
this.push();
}
public bool parse()
{
if (this.doGetLexeme(true))
{
return(true);
}
Label_000B:
if (!this.m_abort)
{
switch (this.m_action)
{
case 0:
if (!this.doShift())
{
goto Label_000B;
}
return(true);
case 1:
if (!this.doError())
{
goto Label_000B;
}
if (!this.m_endOfInput)
{
return(false); // goto TryAgainAfterError;
}
return(true);
case 2:
if (!this.doReduce())
{
goto Label_000B;
}
return(true);
case 3:
this.m_treeRoot = this.m_element;
return(this.m_error);
case 4:
if (!this.doConflict())
{
goto Label_000B;
}
return(true);
}
}
return(true);
}
public bool syncErr()
{
SSYaccTableRow row3;
SSYaccSet set = new SSYaccSet();
for (int i = 0; i < this.m_stack.getSize(); i++)
{
int num2 = ((SSYaccStackElement)this.m_stack.elementAt(i)).state();
SSYaccTableRow row = this.m_table.lookupRow(num2);
if (row.hasSync() || row.hasSyncAll())
{
for (int j = 0; j < row.action(); j++)
{
SSYaccTableRowEntry entry = row.lookupEntry(j);
if (row.hasSyncAll() || entry.hasSync())
{
int num4 = entry.token();
set.add(num4);
}
}
}
if (row.hasError())
{
SSYaccTableRow row2 = this.m_table.lookupRow(row.lookupError().entry());
for (int k = 0; k < row2.action(); k++)
{
int num6 = row2.lookupEntry(k).token();
set.add(num6);
}
}
}
if (set.Count == 0)
{
return(true);
}
while (!set.locate(this.m_lookahead.token()))
{
if (this.doGetLexeme(false))
{
return(true);
}
}
Label_012B:
row3 = this.m_table.lookupRow(this.m_state);
if (row3.hasError())
{
this.lookupAction(row3.lookupError().entry(), this.m_lookahead.token());
if (this.m_action != 1)
{
SSLexLexeme lexeme = new SSLexLexeme("%error", -2);
this.m_element = this.stackElement();
this.m_element.setLexeme(lexeme);
this.m_element.setState(row3.lookupError().entry());
this.push();
goto Label_0226;
}
}
if (row3.hasSyncAll())
{
this.lookupAction(this.m_state, this.m_lookahead.token());
if (this.m_action == 1)
{
goto Label_0219;
}
goto Label_0226;
}
if (row3.hasSync() && (row3.lookupAction(this.m_lookahead.token()) != null))
{
this.lookupAction(this.m_state, this.m_lookahead.token());
goto Label_0226;
}
Label_0219:
this.pop(1);
goto Label_012B;
Label_0226:
return(false);
}
public bool push(SSYaccStackElement q_element)
{
this.m_stack.push(q_element);
return(true);
}