static string BuildHeaderHtml(bool bModified, string strField)
{
if (string.IsNullOrEmpty(strField) == true)
{
// return "\r\n<td class='content' colspan='3'></td>";
return("<td class='fieldname'></td>"
+ "<td class='indicator'></td>"
+ "<td class='content'></td>");
}
// string strLineClass = "";
string strFieldName = "";
string strIndicatior = "";
string strContent = "";
// strLineClass = "header";
strField = strField.Replace(' ', '_');
strContent = MarcUtil.GetHtmlFieldContent(strField, false);
string strTypeClass = "";
if (bModified)
{
strTypeClass = " modified";
}
//
return("\r\n<td class='fieldname" + strTypeClass + "'>" + strFieldName + "</td>"
+ "<td class='indicator" + strTypeClass + "'>" + strIndicatior + "</td>"
+ "<td class='content" + strTypeClass + "'>" + strContent + "</td>");
}
/// <summary>
/// 根据一个 Field 对象的内容创建一个新的 SubfieldCollection 对象
/// </summary>
/// <param name="container">Field 对象，也被当作要创建的 SubfieldCollection 对象的容器</param>
/// <returns>新创建的 SubfieldCollection 对象</returns>
public static SubfieldCollection BuildSubfields(Field container)
{
SubfieldCollection subfields = new SubfieldCollection();
string strField = container.Text;
for (int i = 0; ; i++)
{
string strSubfield = "";
string strNextSubfieldName = "";
// 从字段或子字段组中得到一个子字段
// parameters:
// strText 字段内容，或者子字段组内容。
// textType 表示strText中包含的是字段内容还是组内容。若为ItemType.Field，表示strText参数中为字段；若为ItemType.Group，表示strText参数中为子字段组。
// strSubfieldName 子字段名，内容为1位字符。如果==null，表示任意子字段
// 形式为'a'这样的。
// nIndex 想要获得同名子字段中的第几个。从0开始计算。
// strSubfield [out]输出子字段。子字段名(1字符)、子字段内容。
// strNextSubfieldName [out]下一个子字段的名字，内容一个字符
// return:
// -1 出错
// 0 所指定的子字段没有找到
// 1 找到。找到的子字段返回在strSubfield参数中
int nRet = MarcUtil.GetSubfield(
strField,
ItemType.Field,
null,
i,
out strSubfield,
out strNextSubfieldName);
if (nRet == -1 || nRet == 0)
{
break;
}
Subfield subfield = new Subfield();
subfield.Text = strSubfield;
subfield.Container = subfields;
subfields.Add(subfield);
}
subfields.Container = container;
return(subfields);
}
// 将 MARC 机内格式字符串写入。也就是执行转换的意思。调用后， XML 结果需要从 TextWriter 中取出
public int WriteRecord(
string strMARC,
out string strError)
{
strError = "";
int nRet = 0;
string[] saField = null;
nRet = MarcUtil.ConvertMarcToFieldArray(strMARC,
out saField,
out strError);
if (nRet == -1)
{
return(-1);
}
return(WriteRecord(
saField,
out strError));
}
// 从 ISO2709 文件中读出第一条记录。返回的是机内格式
// return:
// -1 出错
// 0 正常
/*public*/ static int LoadFirstRecord(string strMarcFileName,
Encoding encoding,
out string strMARC,
out string strError)
{
strError = "";
strMARC = "";
try
{
using (Stream stream = File.Open(strMarcFileName,
FileMode.Open,
FileAccess.Read,
FileShare.ReadWrite))
{
// 从ISO2709文件中读入一条MARC记录
// return:
// -2 MARC格式错
// -1 出错
// 0 正确
// 1 结束(当前返回的记录有效)
// 2 结束(当前返回的记录无效)
int nRet = MarcUtil.ReadMarcRecord(stream,
encoding,
true, // bRemoveEndCrLf,
true, // bForce,
out strMARC,
out strError);
if (nRet == 0 || nRet == 1)
{
return(0); // 正常
}
strError = "读入MARC记录时出错: " + strError;
return(-1);
}
}
catch (Exception ex)
{
strError = "异常: " + ex.Message;
return(-1);
}
}
/// <summary>
/// 获得符合条件的若干个字段对象
/// </summary>
/// <param name="strFieldName">字段名</param>
/// <param name="strIndicatorMatch">字段指示符筛选条件。缺省为 "**"</param>
/// <returns>字段对象集合</returns>
public FieldCollection GetFields(string strFieldName,
string strIndicatorMatch = "**")
{
FieldCollection fields = new FieldCollection();
foreach (Field field in this)
{
if (field.m_strName == strFieldName)
{
if (strIndicatorMatch != "**" &&
string.IsNullOrEmpty(field.m_strIndicator) == false &&
MarcUtil.MatchIndicator(strIndicatorMatch, field.m_strIndicator) == false)
{
continue;
}
// 这里要特别注意
fields.Add(field);
}
}
return(fields);
}
void DisplayFirstRecord(string strFileName,
Encoding encoding)
{
if (string.IsNullOrEmpty(strFileName) == true)
{
goto ERROR1;
}
if (File.Exists(strFileName) == false)
{
goto ERROR1;
}
if (encoding == null)
{
goto ERROR1;
}
string strMARC = "";
string strError = "";
// return:
// -1 出错
// 0 正常
int nRet = LoadFirstRecord(strFileName,
encoding,
out strMARC,
out strError);
if (nRet == -1)
{
goto ERROR1;
}
if (this.Mode880 == true &&
(this.comboBox_marcSyntax.Text == "USMARC" || this.comboBox_marcSyntax.Text == "<自动>"))
{
if (this.IsOutput == false)
{
MarcRecord temp = new MarcRecord(strMARC);
MarcQuery.ToParallel(temp);
strMARC = temp.Text;
}
}
string strHead = @"<head>
<style type='text/css'>
BODY {
FONT-FAMILY: Microsoft YaHei, Verdana, 宋体;
FONT-SIZE: 8pt;
}
TABLE.marc
{
font-size: 8pt;
width: auto;
}
TABLE.marc TD
{
vertical-align:text-top;
}
TABLE.marc TR.header
{
background-color: #eeeeee;
}
TABLE.marc TR.datafield
{
}
TABLE.marc TD.fieldname
{
border: 0px;
border-top: 1px;
border-style: dotted;
border-color: #cccccc;
}
TABLE.marc TD.fieldname, TABLE.marc TD.indicator, TABLE.marc TR.header TD.content, TABLE.marc SPAN
{
font-family: Courier New, Tahoma, Arial, Helvetica, sans-serif;
font-weight: bold;
}
TABLE.marc TD.indicator
{
padding-left: 4px;
padding-right: 4px;
border: 0px;
border-left: 1px;
border-right: 1px;
border-style: dotted;
border-color: #eeeeee;
}
TABLE.marc SPAN.subfield
{
margin: 2px;
margin-left: 0px;
line-height: 140%;
border: 1px;
border-style: solid;
border-color: #cccccc;
padding-top: 1px;
padding-bottom: 1px;
padding-left: 3px;
padding-right: 3px;
font-weight: bold;
color: Blue;
background-color: Yellow;
}
TABLE.marc SPAN.fieldend
{
margin: 2px;
margin-left: 4px;
border: 1px;
border-style: solid;
border-color: #cccccc;
padding-top: 1px;
padding-bottom: 1px;
padding-left: 3px;
padding-right: 3px;
font-weight: bold;
color: White;
background-color: #cccccc;
}
</style>
</head>";
string strHtml = "<html>" +
strHead +
"<body>" +
MarcUtil.GetHtmlOfMarc(strMARC, false) +
"</body></html>";
AppendHtml(this.webBrowser1, strHtml, true);
if (this.IsOutput == false && this.Visible == true)
{
HideMessageTip();
ShowMessageTip();
}
return;
ERROR1:
ClearHtml();
}
// return:
// 0 成功
// -1 出错
public int WriteRecord(
string[] saField,
out string strError)
{
string strFieldName = null;
// int nRet;
strError = "";
// long lStart = writer.BaseStream.Position;
// Debug.Assert(writer.BaseStream.CanSeek == true, "writer.BaseStream.CanSeek != true");
//根据WriteMarcPrefix的值，确定是否对元素record加命名空间
if (WriteMarcPrefix == false)
{
_writer.WriteStartElement("record");
}
else
{
_writer.WriteStartElement(MarcPrefix,
"record", MarcNameSpaceUri);
}
if (String.IsNullOrEmpty(_writer.LookupPrefix("dprms")) == true)
{
// dprms名字空间 2010/11/15
_writer.WriteAttributeString("xmlns", "dprms", null, DpNs.dprms);
}
//循环，写头标区及每个子段
for (int i = 0; i < saField.Length; i++)
{
string strLine = saField[i];
string strInd1 = null;
string strInd2 = null;
string strContent = null;
// 头标区
if (i == 0)
{
// 多截少添
if (strLine.Length > 24)
{
strLine = strLine.Substring(0, 24);
}
else
{
while (strLine.Length < 24)
{
strLine += " ";
}
}
if (WriteMarcPrefix == false)
{
_writer.WriteElementString("leader", strLine);
}
else
{
_writer.WriteElementString("leader", MarcNameSpaceUri, strLine);
}
continue;
}
Debug.Assert(strLine != null, "");
// 不合法的字段,不算数
if (strLine.Length < 3)
{
continue;
}
strFieldName = strLine.Substring(0, 3);
if (strLine.Length >= 3)
{
strContent = strLine.Substring(3);
}
else
{
strContent = "";
}
// control field 001-009 没有子字段
/*
* if ( (String.Compare(strFieldName, "001") >= 0
* && String.Compare(strFieldName, "009") <= 0 )
|| String.Compare(strFieldName, "-01") == 0)
* */
if (MarcUtil.IsControlFieldName(strFieldName) == true)
{
if (WriteMarcPrefix == false)
{
_writer.WriteStartElement("controlfield");
}
else
{
_writer.WriteStartElement(MarcPrefix,
"controlfield", MarcNameSpaceUri);
}
_writer.WriteAttributeString("tag", strFieldName);
_writer.WriteString(strContent);
_writer.WriteEndElement();
continue;
}
if (strLine.Length == 3)
{
strInd1 = " ";
strInd2 = " ";
strContent = "";
}
//字段长度等于4的情况,这样做是为了防止越界
else if (strLine.Length == 4)
{
strInd1 = strContent[0].ToString();
strInd2 = " ";
strContent = "";
}
else
{
strInd1 = strContent[0].ToString();
strInd2 = strContent[1].ToString();
strContent = strContent.Substring(2);
}
// 普通字段
if (WriteMarcPrefix == false)
{
_writer.WriteStartElement("datafield");
}
else
{
_writer.WriteStartElement(MarcPrefix,
"datafield", MarcNameSpaceUri);
}
_writer.WriteAttributeString("tag", strFieldName);
_writer.WriteAttributeString("ind1", strInd1);
_writer.WriteAttributeString("ind2", strInd2);
// 得到子字段数组
string[] aSubfield = strContent.Split(new char[] { (char)31 });
if (aSubfield == null)
{
// 不太可能发生
continue;
}
// 循环写子字段
for (int j = 0; j < aSubfield.Length; j++)
{
string strValue = aSubfield[j];
string strSubfieldName = "";
string strSubfieldContent = "";
if (j == 0)
{
// 第一个空字符串要被跳过。其余的，将来返还时会用来产生一个单独的 31 字符
if (string.IsNullOrEmpty(aSubfield[0]) == true)
{
continue;
}
strSubfieldName = null; // 表示后面不要创建code属性
strSubfieldContent = strValue;
}
else
{
if (string.IsNullOrEmpty(strValue) == false)
{
strSubfieldName = strValue.Substring(0, 1);
}
if (string.IsNullOrEmpty(strValue) == false)
{
strSubfieldContent = strValue.Substring(1);
}
}
if (WriteMarcPrefix == false)
{
_writer.WriteStartElement("subfield");
}
else
{
_writer.WriteStartElement(MarcPrefix,
"subfield", MarcNameSpaceUri);
}
if (strSubfieldName != null)
{
_writer.WriteAttributeString("code", strSubfieldName);
}
_writer.WriteString(strSubfieldContent); //注意这里是否有越界的危险
_writer.WriteEndElement();
}
_writer.WriteEndElement();
}
_writer.WriteEndElement();
return(0);
}
// 创建一个字段的 HTML 局部 三个 <td>
static string BuildFieldHtml(
ChangeType type,
string strField,
bool bSubfieldReturn = false)
{
if (string.IsNullOrEmpty(strField) == true)
{
return("\r\n<td class='content' colspan='3'></td>");
}
string strLineClass = "";
string strFieldName = "";
string strIndicatior = "";
string strContent = "";
// 取字段名
if (strField.Length < 3)
{
strFieldName = strField;
strField = "";
}
else
{
strFieldName = strField.Substring(0, 3);
strField = strField.Substring(3);
}
// 取指示符
if (MarcUtil.IsControlFieldName(strFieldName) == true)
{
strLineClass = "controlfield";
strField = strField.Replace(' ', '_');
}
else
{
if (strField.Length < 2)
{
strIndicatior = strField;
strField = "";
}
else
{
strIndicatior = strField.Substring(0, 2);
strField = strField.Substring(2);
}
strIndicatior = strIndicatior.Replace(' ', '_');
strLineClass = "datafield";
// 1XX字段有定长内容
if (strFieldName.Length >= 1 && strFieldName[0] == '1')
{
strField = strField.Replace(' ', '_');
strLineClass += " fixedlengthsubfield";
}
}
strContent = MarcUtil.GetHtmlFieldContent(strField,
bSubfieldReturn);
string strTypeClass = "";
if (type == ChangeType.Modified)
{
strTypeClass = " modified";
}
else if (type == ChangeType.Inserted)
{
strTypeClass = " inserted";
}
else if (type == ChangeType.Deleted)
{
strTypeClass = " deleted";
}
else if (type == ChangeType.Imaginary)
{
strTypeClass = " imaginary";
}
else if (type == ChangeType.Unchanged)
{
strTypeClass = " unchanged";
}
//
return("\r\n<td class='fieldname" + strTypeClass + "'>" + strFieldName + "</td>"
+ "<td class='indicator" + strTypeClass + "'>" + strIndicatior + "</td>"
+ "<td class='content" + strTypeClass + "'>" + strContent + "</td>");
}
// 把byte[]类型的MARC记录转换为机内格式
// return:
// -2 MARC格式错
// -1 一般错误
// 0 正常
public static int ConvertByteArrayToMarcRecord(byte[] baRecord,
Encoding encoding,
bool bForce,
out string strMarc,
out string strError)
{
strError = "";
strMarc = "";
int nRet = 0;
bool bUcs2 = false;
if (encoding.Equals(Encoding.Unicode) == true)
{
bUcs2 = true;
}
List <byte[]> aField = new List <byte[]>();
if (bForce == true ||
bUcs2 == true)
{
nRet = MarcUtil.ForceCvt2709ToFieldArray(
ref encoding,
baRecord,
out aField,
out strError);
Debug.Assert(nRet != -2, "");
/*
* if (bUcs2 == true)
* {
* // 转换后，编码方式已经变为UTF8
* Debug.Assert(encoding.Equals(Encoding.UTF8), "");
* }
* */
}
else
{
//???
nRet = MarcUtil.Cvt2709ToFieldArray(
encoding,
baRecord,
out aField,
out strError);
}
if (nRet == -1)
{
return(-1);
}
if (nRet == -2) //marc出错
{
return(-2);
}
string[] saField = null;
GetMarcRecordString(aField,
encoding,
out saField);
if (saField.Length > 0)
{
string strHeader = saField[0];
if (strHeader.Length > 24)
{
strHeader = strHeader.Substring(0, 24);
}
else
{
strHeader = saField[0].PadRight(24, '*');
}
StringBuilder text = new StringBuilder(1024);
text.Append(strHeader);
for (int i = 1; i < saField.Length; i++)
{
text.Append(saField[i] + new string(FLDEND, 1));
}
strMarc = text.ToString().Replace("\r", "*").Replace("\n", "*"); // 2012/3/16
return(0);
}
return(0);
}