Пример #1
0
        /// <summary>
        /// 分析标签
        /// </summary>
        /// <param name="parser">TemplateParser</param>
        /// <param name="tc">Token集合</param>
        /// <returns></returns>
        public Tag Parse(TemplateParser parser, TokenCollection tc)
        {
            //支持写法:简写格式:
            //常规格式:
            if (tc.Count > 5 &&
                Common.ParserHelpers.IsEqual(tc.First.Text, Field.KEY_SET) &&
                tc[1].TokenKind == TokenKind.LeftParentheses &&
                tc[3].Text == "=" &&
                tc.Last.TokenKind == TokenKind.RightParentheses)
            {
                SetTag tag = new SetTag();
                tag.Name = tc[2].Text;

                TokenCollection coll = new TokenCollection();
                coll.Add(tc, 4, tc.Count - 2);

                tag.Value = parser.Read(coll);
                return(tag);
            }
            else if (tc.Count == 2 &&
                     tc.First.TokenKind == TokenKind.TextData &&
                     tc.Last.TokenKind == TokenKind.Operator &&
                     (tc.Last.Text == "++" || tc.Last.Text == "--"))
            {
                SetTag tag = new SetTag();
                tag.Name = tc.First.Text;

                ExpressionTag c = new ExpressionTag();
                c.AddChild(new VariableTag()
                {
                    FirstToken = tc.First,
                    Name       = tc.First.Text
                });
                c.AddChild(new TextTag()
                {
                    FirstToken = new Token(TokenKind.Operator, tc.Last.Text[0].ToString())
                });
                c.AddChild(new NumberTag()
                {
                    Value      = 1,
                    FirstToken = new Token(TokenKind.Number, "1")
                });

                tag.Value = c;
                return(tag);
            }
            else if (tc.Count > 2 &&
                     tc.First.TokenKind == TokenKind.TextData &&
                     tc[1].Text == "=")
            {
                SetTag tag = new SetTag();
                tag.Name = tc.First.Text;

                TokenCollection coll = new TokenCollection();
                coll.Add(tc, 2, tc.Count - 1);

                tag.Value = parser.Read(coll);
                return(tag);
            }

            return(null);
        }
Пример #2
0
        /// <summary>
        /// 分析标签
        /// </summary>
        /// <param name="parser">TemplateParser</param>
        /// <param name="tc">Token集合</param>
        /// <returns></returns>
        public Tag Parse(Ding.Web.FPTemplate.Parser.TemplateParser parser, TokenCollection tc)
        {
            if (tc != null &&
                parser != null &&
                tc.Count > 2)
            {
                Int32 start, end, pos;
                start = end = pos = 0;

                Boolean isFunc = false;

                List <Token> data = new List <Token>();

                Queue <TokenCollection> queue = new Queue <TokenCollection>();

                for (Int32 i = 0; i < tc.Count; i++)
                {
                    end = i;
                    if (tc[i].TokenKind == TokenKind.LeftParentheses)
                    {
                        if (pos == 0)
                        {
                            if (i > 0 && tc[i - 1].TokenKind == TokenKind.TextData)
                            {
                                isFunc = true;
                            }
                        }
                        pos++;
                    }
                    else if (tc[i].TokenKind == TokenKind.RightParentheses)
                    {
                        if (pos > 0)
                        {
                            pos--;
                        }
                        else
                        {
                            throw new Exception.ParseException(String.Concat("syntax error near ):", tc), data[i].BeginLine, data[i].BeginColumn);
                        }

                        if (pos == 0)
                        {
                            TokenCollection coll = new TokenCollection();
                            if (!isFunc)
                            {
                                coll.Add(tc, start + 1, end - 1);
                            }
                            else
                            {
                                coll.Add(tc, start, end);
                            }
                            queue.Enqueue(coll);
                            data.Add(null);
                            start = i + 1;
                            //tag.AddChild(parser.Read(coll));
                        }
                    }
                    else if (pos == 0 && (tc[i].TokenKind == TokenKind.Dot || tc[i].TokenKind == TokenKind.Operator))
                    {
                        if (end > start)
                        {
                            TokenCollection coll = new TokenCollection();
                            coll.Add(tc, start, end - 1);
                            queue.Enqueue(coll);
                            data.Add(null);
                        }
                        start = i + 1;
                        data.Add(tc[i]);
                    }

                    if (i == tc.Count - 1 && end >= start)
                    {
                        if (start == 0 && end == i)
                        {
                            throw new Exception.ParseException(String.Concat("Unexpected  tag:", tc), tc[0].BeginLine, tc[0].BeginColumn);
                        }
                        TokenCollection coll = new TokenCollection();
                        coll.Add(tc, start, end);
                        queue.Enqueue(coll);
                        data.Add(null);
                        start = i + 1;
                    }
                }

                if (queue.Count == 1 && queue.Peek().Equals(tc))
                {
                    return(null);
                }
                List <Tag> tags = new List <Tag>();

                for (Int32 i = 0; i < data.Count; i++)
                {
                    if (data[i] == null)
                    {
                        tags.Add(parser.Read(queue.Dequeue()));
                    }
                    else if (data[i].TokenKind == TokenKind.Dot)
                    {
                        if (tags.Count == 0 || i == data.Count - 1 || data[i + 1] != null)
                        {
                            throw new Exception.ParseException(String.Concat("syntax error near .:", tc), data[i].BeginLine, data[i].BeginColumn);
                        }
                        if (tags[tags.Count - 1] is ReferenceTag)
                        {
                            tags[tags.Count - 1].AddChild(parser.Read(queue.Dequeue()));
                        }
                        else
                        {
                            ReferenceTag t = new ReferenceTag();
                            t.AddChild(tags[tags.Count - 1]);
                            t.AddChild(parser.Read(queue.Dequeue()));
                            tags[tags.Count - 1] = t;
                        }
                        i++;
                    }
                    else if (data[i].TokenKind == TokenKind.Operator)
                    {
                        tags.Add(new TextTag());
                        tags[tags.Count - 1].FirstToken = data[i];
                    }
                }

                if (tags.Count == 1)
                {
                    return(tags[0]);
                }
                if (tags.Count > 1)
                {
                    ExpressionTag t = new ExpressionTag();

                    for (Int32 i = 0; i < tags.Count; i++)
                    {
                        t.AddChild(tags[i]);
                    }

                    tags.Clear();
                    return(t);
                }
            }
            return(null);
        }
Пример #3
0
        /// <summary>
        /// 分析标签
        /// </summary>
        /// <param name="parser">TemplateParser</param>
        /// <param name="tc">Token集合</param>
        /// <returns></returns>
        public ITag Parse(TemplateParser parser, TokenCollection tc)
        {
            if (tc != null &&
                parser != null &&
                tc.Count > 2)
            {
                List <ITag>       tags = new List <ITag>();
                TokenCollection[] tcs  = tc.Split(0, tc.Count, TokenKind.Dot, TokenKind.Operator);
                if (tcs.Length == 1)
                {
                    return(null);
                }
                for (int i = 0; i < tcs.Length; i++)
                {
                    if (tcs[i].Count == 1 && tcs[i][0].TokenKind == TokenKind.Dot)
                    {
                        if (tags.Count == 0 || i == tcs[i].Count - 1 || (tcs[i + 1].Count == 1 && (tcs[i + 1][0].TokenKind == TokenKind.Dot || tcs[i + 1][0].TokenKind == TokenKind.Operator)))
                        {
                            throw new Exception.ParseException(string.Concat("syntax error near .:", tc), tcs[i][0].BeginLine, tcs[i][0].BeginColumn);
                        }
                        if (tags[tags.Count - 1] is ReferenceTag)
                        {
                            tags[tags.Count - 1].AddChild(parser.Read(tcs[i + 1]));
                        }
                        else
                        {
                            ReferenceTag t = new ReferenceTag();
                            t.AddChild(tags[tags.Count - 1]);
                            t.AddChild(parser.Read(tcs[i + 1]));
                            tags[tags.Count - 1] = t;
                        }
                        i++;
                    }
                    else if (tcs[i].Count == 1 && tcs[i][0].TokenKind == TokenKind.Operator)
                    {
                        tags.Add(new TextTag());
                        tags[tags.Count - 1].FirstToken = tcs[i][0];
                    }
                    else if (tcs[i].Count > 0)
                    {
                        if (tcs[i].First.TokenKind == TokenKind.LeftParentheses && tcs[i].Last.TokenKind == TokenKind.RightParentheses)
                        {
                            tcs[i].RemoveAt(0);
                            tcs[i].RemoveAt(tcs[i].Count - 1);
                        }
                        tags.Add(parser.Read(tcs[i]));
                    }
                }

                /*****************************************************/
                //int start, end, pos;
                //start = end = pos = 0;

                //List<Token> data = new List<Token>();

                //Queue<TokenCollection> queue = new Queue<TokenCollection>();

                //for (int i = 0; i < tc.Count; i++)
                //{
                //    end = i;
                //    if (tc[i].TokenKind == TokenKind.LeftParentheses)
                //    {
                //        pos++;
                //    }
                //    else if (tc[i].TokenKind == TokenKind.RightParentheses)
                //    {
                //        if (pos > 0)
                //        {
                //            pos--;
                //        }
                //        else
                //        {
                //            throw new Exception.ParseException(string.Concat("syntax error near ):", tc), data[i].BeginLine, data[i].BeginColumn);
                //        }
                //    }
                //    else if (pos == 0 && (tc[i].TokenKind == TokenKind.Dot || tc[i].TokenKind == TokenKind.Operator))
                //    {
                //        if (end > start)
                //        {
                //            queue.Enqueue(tc[start, end]);
                //            data.Add(null);
                //        }
                //        start = i + 1;
                //        data.Add(tc[i]);
                //    }

                //    if (i == tc.Count - 1 && end >= start)
                //    {
                //        if (start == 0 && end == i)
                //        {
                //            throw new Exception.ParseException(string.Concat("Unexpected  tag:", tc), tc[0].BeginLine, tc[0].BeginColumn);
                //        }
                //        queue.Enqueue(tc[start, end + 1]);
                //        data.Add(null);
                //        start = i + 1;
                //    }
                //}


                ////===============================================================


                //if (queue.Count == 1 && queue.Peek().Equals(tc))
                //{
                //    return null;
                //}

                //for (int i = 0; i < data.Count; i++)
                //{
                //    if (data[i] == null)
                //    {
                //        TokenCollection tmpColl = queue.Dequeue();
                //        if (tmpColl.First.TokenKind == TokenKind.LeftParentheses && tmpColl.Last.TokenKind == TokenKind.RightParentheses)
                //        {
                //            tmpColl.RemoveAt(0);
                //            tmpColl.RemoveAt(tmpColl.Count - 1);
                //        }
                //        tags.Add(parser.Read(tmpColl));
                //    }
                //    else if (data[i].TokenKind == TokenKind.Dot)
                //    {
                //        if (tags.Count == 0 || i == data.Count - 1 || data[i + 1] != null)
                //        {
                //            throw new Exception.ParseException(string.Concat("syntax error near .:", tc), data[i].BeginLine, data[i].BeginColumn);
                //        }
                //        if (tags[tags.Count - 1] is ReferenceTag)
                //        {
                //            tags[tags.Count - 1].AddChild(parser.Read(queue.Dequeue()));
                //        }
                //        else
                //        {
                //            ReferenceTag t = new ReferenceTag();
                //            t.AddChild(tags[tags.Count - 1]);
                //            t.AddChild(parser.Read(queue.Dequeue()));
                //            tags[tags.Count - 1] = t;
                //        }
                //        i++;
                //    }
                //    else if (data[i].TokenKind == TokenKind.Operator)
                //    {
                //        tags.Add(new TextTag());
                //        tags[tags.Count - 1].FirstToken = data[i];

                //    }
                //}

                if (tags.Count == 1)
                {
                    return(tags[0]);
                }

                if (tags.Count > 1)
                {
                    ExpressionTag t = new ExpressionTag();

                    for (int i = 0; i < tags.Count; i++)
                    {
                        t.AddChild(tags[i]);
                    }

                    tags.Clear();
                    return(t);
                }
            }
            return(null);
        }
Пример #4
0
        public Tag Parse(TemplateParser parser, TokenCollection tc)
        {
            if (tc.Count > 2 && HasOperator(tc))
            {
                Int32 start, end, pos;
                start = end = pos = 0;

                #region 去括号
                //(8+2) ==》 8+2
                //(8+2) * (10-5) ==》(8+2) * (10-5)
                if (tc.First.TokenKind == TokenKind.LeftParentheses && tc.Last.TokenKind == TokenKind.RightParentheses)
                {
                    for (Int32 i = 1; i < tc.Count - 1; i++)
                    {
                        switch (tc[i].TokenKind)
                        {
                        case TokenKind.LeftParentheses:
                            pos++;
                            break;

                        case TokenKind.RightParentheses:
                            if (pos > 0)
                            {
                                pos--;
                            }
                            break;
                        }
                    }
                    if (pos == 0)
                    {
                        tc = new TokenCollection(tc, 1, tc.Count - 2);
                    }
                    else
                    {
                        pos = 0;
                    }
                }
                #endregion

                ExpressionTag tag = new ExpressionTag();

                #region 执行表达式折分

                for (Int32 i = 0; i < tc.Count; i++)
                {
                    end = i;
                    switch (tc[i].TokenKind)
                    {
                    case TokenKind.Operator:
                        if (pos == 0)
                        {
                            if (start != end)
                            {
                                TokenCollection coll = new TokenCollection();
                                coll.Add(tc, start, end - 1);
                                tag.AddChild(parser.Read(coll));
                            }
                            tag.AddChild(new TextTag());
                            tag.Children[tag.Children.Count - 1].FirstToken = tc[i];
                            start = i + 1;
                        }
                        break;

                    default:
                        if (tc[i].TokenKind == TokenKind.LeftParentheses)
                        {
                            pos++;
                        }
                        else if (tc[i].TokenKind == TokenKind.RightParentheses)
                        {
                            pos--;
                        }
                        if (i == tc.Count - 1)
                        {
                            TokenCollection coll = new TokenCollection();
                            if (tc[start].TokenKind == TokenKind.RightParentheses)
                            {
                                coll.Add(tc, start + 1, end - 1);
                            }
                            else
                            {
                                coll.Add(tc, start, end);
                            }
                            start = i + 1;
                            if (coll.Count > 0)
                            {
                                tag.AddChild(parser.Read(coll));
                            }
                        }
                        break;
                    }
                }

                #endregion

                if (tag.Children.Count > 0)
                {
                    if (tag.Children.Count == 1)
                    {
                        return(tag.Children[0]);
                    }
                    return(tag);
                }
            }
            return(null);
        }
Пример #5
0
        /// <summary>
        /// 分析标签
        /// </summary>
        /// <param name="parser">TemplateParser</param>
        /// <param name="tc">Token集合</param>
        /// <returns></returns>
        public ITag Parse(TemplateParser parser, TokenCollection tc)
        {
            if (tc == null ||
                parser == null)
            {
                return(null);
            }

            //支持写法:简写格式:
            //常规格式:
            if (tc.Count > 5 &&
                Utility.IsEqual(tc.First.Text, Field.KEY_SET) &&
                tc[1].TokenKind == TokenKind.LeftParentheses &&
                tc[3].Text == "=" &&
                tc.Last.TokenKind == TokenKind.RightParentheses)
            {
                SetTag tag = new SetTag();
                tag.Name = tc[2].Text;

                tag.Value = parser.Read(tc[4, -1]);
                return(tag);
            }

            if (tc.Count == 2 &&
                tc.First.TokenKind == TokenKind.TextData &&
                tc.Last.TokenKind == TokenKind.Operator &&
                (tc.Last.Text == "++" || tc.Last.Text == "--"))
            {
                SetTag tag = new SetTag();
                tag.Name = tc.First.Text;

                ExpressionTag c = new ExpressionTag();
                c.AddChild(new VariableTag()
                {
                    FirstToken = tc.First,
                    Name       = tc.First.Text
                });
                c.AddChild(new TextTag()
                {
                    FirstToken = new Token(TokenKind.Operator, tc.Last.Text[0].ToString())
                });
                c.AddChild(new NumberTag()
                {
                    Value      = 1,
                    FirstToken = new Token(TokenKind.Number, "1")
                });

                tag.Value = c;
                return(tag);
            }

            if (tc.Count > 2 &&
                tc.First.TokenKind == TokenKind.TextData &&
                tc[1].Text == "=")
            {
                SetTag tag = new SetTag();
                tag.Name  = tc.First.Text;
                tag.Value = parser.Read(tc[2, tc.Count]);
                return(tag);
            }

            return(null);
        }
Пример #6
0
        public Tag Parse(TemplateParser parser, TokenCollection tc)
        {
            if (tc.Count > 2)
            {
                int start, end, pos;
                start = end = pos = 0;

                Boolean isFunc = false;

                List <Token> data = new List <Token>();

                Queue <TokenCollection> queue = new Queue <TokenCollection>();

                for (int i = 0; i < tc.Count; ++i)
                {
                    end = i;
                    if (tc[i].TokenKind == TokenKind.LeftParentheses)
                    {
                        if (pos == 0)
                        {
                            if (i > 0 && tc[i - 1].TokenKind == TokenKind.TextData)
                            {
                                isFunc = true;
                            }
                        }
                        ++pos;
                    }
                    else if (tc[i].TokenKind == TokenKind.RightParentheses)
                    {
                        if (pos > 0)
                        {
                            --pos;
                        }
                        else
                        {
                            throw new ParseException(string.Concat("syntax error near ):", tc), parser.Context.CurrentPath, data[i].BeginLine, data[i].BeginColumn);
                        }

                        if (pos == 0)
                        {
                            TokenCollection coll = new TokenCollection();
                            if (!isFunc)
                            {
                                coll.Add(tc, start + 1, end - 1);
                            }
                            else
                            {
                                coll.Add(tc, start, end);
                            }
                            queue.Enqueue(coll);
                            data.Add(null);
                            start = i + 1;
                            //tag.AddChild(parser.Read(coll));
                        }
                    }
                    else if (pos == 0 && (tc[i].TokenKind == TokenKind.Dot || tc[i].TokenKind == TokenKind.Operator))
                    {
                        if (end > start)
                        {
                            TokenCollection coll = new TokenCollection();
                            coll.Add(tc, start, end - 1);
                            queue.Enqueue(coll);
                            data.Add(null);
                        }
                        start = i + 1;
                        data.Add(tc[i]);
                    }

                    if (i == tc.Count - 1 && end >= start)
                    {
                        if (start == 0 && end == i)
                        {
                            throw new ParseException(string.Concat("Unexpected  tag:", tc), parser.Context.CurrentPath, tc[0].BeginLine, tc[0].BeginColumn);
                        }
                        TokenCollection coll = new TokenCollection();
                        coll.Add(tc, start, end);
                        queue.Enqueue(coll);
                        data.Add(null);
                        start = i + 1;
                    }
                }

                List <Tag> tags = new List <Tag>();

                for (int i = 0; i < data.Count; ++i)
                {
                    if (data[i] == null)
                    {
                        //TokenCollection coll = queue.Dequeue();
                        //if (coll.First.TokenKind == TokenKind.LeftParentheses && (coll.Last.TokenKind == TokenKind.RightParentheses))
                        //{
                        //    coll.Remove(coll.First);
                        //    coll.Remove(coll.Last);
                        //}
                        tags.Add(parser.Read(queue.Dequeue()));
                    }
                    else if (data[i].TokenKind == TokenKind.Dot)
                    {
                        if (tags.Count == 0 || i == data.Count - 1 || data[i + 1] != null)
                        {
                            throw new ParseException(string.Concat("syntax error near .:", tc), parser.Context.CurrentPath, data[i].BeginLine, data[i].BeginColumn);
                        }
                        //TokenCollection coll = queue.Dequeue();
                        //if (coll.First.TokenKind == TokenKind.LeftParentheses && (coll.Last.TokenKind == TokenKind.RightParentheses))
                        //{
                        //    coll.Remove(coll.First);
                        //    coll.Remove(coll.Last);
                        //}
                        if (tags[tags.Count - 1] is ReferenceTag)
                        {
                            tags[tags.Count - 1].AddChild(parser.Read(queue.Dequeue()));
                        }
                        else
                        {
                            ReferenceTag t = new ReferenceTag();
                            t.AddChild(tags[tags.Count - 1]);
                            t.AddChild(parser.Read(queue.Dequeue()));
                            tags[tags.Count - 1] = t;
                        }
                        ++i;
                    }
                    else if (data[i].TokenKind == TokenKind.Operator)
                    {
                        tags.Add(new TextTag());
                        tags[tags.Count - 1].FirstToken = data[i];
                    }
                }

                if (tags.Count == 1)
                {
                    return(tags[0]);
                }
                if (tags.Count > 1)
                {
                    ExpressionTag t = new ExpressionTag();

                    for (int i = 0; i < tags.Count; ++i)
                    {
                        t.AddChild(tags[i]);
                    }

                    tags.Clear();
                    return(t);
                }
            }
            return(null);
        }