Question

我正在利用自由卫星软件接收用户,并在数据库中以超文本格式储存这些信息。用户意见摘要如下:

133 Peachtree St NE
,《亚特兰大》,GA 303
404-652-77

Cindyqiaobr/>www.somecompany.com
。产品管理:产品管理测试 St
Atlanta,GA 303

试验

我希望超文本工作员能保护用户进入的白色空间,但会将其排除在外。是否有办法保护用户的白色空间? 下文是我如何编写我国人民抵抗力量文件的一个例子。

公共共同创建 PreviewPDF

        Dim output As New MemoryStream()
        Dim oDocument As New Document(PageSize.LETTER)
        Dim writer As PdfWriter = PdfWriter.GetInstance(oDocument, output)
        Dim oFont As New Font(Font.FontFamily.TIMES_ROMAN, 8, Font.NORMAL, BaseColor.BLACK)

        Using output
            Using writer
                Using oDocument
                    oDocument.Open()
                    Using sr As New StringReader(vsHTML)
                        Using worker As New html.simpleparser.HTMLWorker(oDocument)

                            worker.StartDocument()
                            worker.SetInsidePRE(True)
                            worker.Parse(sr)
                            worker.EndDocument()
                            worker.Close()
                            oDocument.Close()

                        End Using
                    End Using

                    HttpContext.Current.Response.ContentType = "application/pdf"
                    HttpContext.Current.Response.AddHeader("Content-Disposition", String.Format("attachment;filename={0}.pdf", vsFileName))
                    HttpContext.Current.Response.BinaryWrite(output.ToArray())
                    HttpContext.Current.Response.End()

                End Using
            End Using
            output.Close()
        End Using


    End Sub

Answer 1

感谢大家的帮助。我通过采取以下行动,找到了小的工作:

vsHTML.Replace("  ", "&nbsp;&nbsp;").Replace(Chr(9), "&nbsp;&nbsp;&nbsp;&nbsp;").Replace(Chr(160), "&nbsp;").Replace(vbCrLf, "<br />")

实际代码没有适当显示,但第一个替代物是将白色空间替换为<代码> ,Chr(9) with 5  ;Chr(160) with  。

Answer 2

在iText和iTextSharp有了一个冰川,但是如果你不想下载来源并与之相匹配,你可以很容易地加以固定。你们需要改变两个档案。在法典中,对Ive所作的任何改动都作了评论。线路数是根据5.1.2.0代码第240号编码计算的。

第一部载于iTextSharp.text.html.HtmlUtilities.cs。查阅第249行的<条码>消除白空间,将其改为:

    public static String EliminateWhiteSpace(String content) {
        // multiple spaces are reduced to one,
        // newlines are treated as spaces,
        // tabs, carriage returns are ignored.
        StringBuilder buf = new StringBuilder();
        int len = content.Length;
        char character;
        bool newline = false;
        bool space = false;//Detect whether we have written at least one space already
        for (int i = 0; i < len; i++) {
            switch (character = content[i]) {
            case    :
                if (!newline && !space) {//If we are not at a new line AND ALSO did not just append a space
                    buf.Append(character);
                    space = true;  //flag that we just wrote a space
                }
                break;
            case  
 :
                if (i > 0) {
                    newline = true;
                    buf.Append(   );
                }
                break;
            case  
 :
                break;
            case  	 :
                break;
            default:
                newline = false;
                space = false;  //reset flag
                buf.Append(character);
                break;
            }
        }
        return buf.ToString();
    }

第二个改动见iTextSharp.text.xml.simpleparser.SimpleXMLParser.cs。在职能<代码>Go上,第185条修改项目248改为:

if (html /*&& nowhite*/) {//removed the nowhite check from here because that should be handled by the HTML parser later, not the XML parser

Answer 3

我建议使用wkhtmltopdf。不是iText. wkhtmltopdf,而是将网络kit(谷歌 Chrome、Sato)而不是iText的转换结果输出到html。这只是你可以呼吁的双手。尽管如此,我可以检查html,以确保用户投入中有段落和(或)细线的中断。在进行转换之前,他们可能被剥夺权利。

友情链接