/// <summary>
/// Appends the opening MathML <math> tag to the specified StringBuilder instance.
/// </summary>
/// <param name="bld">The StringBuilder instance.</param>
/// <param name="altText">The alternative text.</param>
/// <param name="inline">Indicates whether the math block is inline.</param>
public static void AppendMathProlog(StringBuilder bld, string altText,
bool inline, LatexToMathMLConverter customization)
{
bld.Append("\n<math xmlns=\"http://www.w3.org/1998/Math/MathML\" alttext=\"");
bld.Append(altText);
bld.Append("\" ");
bld.Append(inline ? "display=\"inline\"" : "display=\"block\"");
bld.Append(" class=\"" + customization.GetCurrentCssStyle() + "\"");
bld.Append(">\n<mstyle displaystyle=\"true\" />");
}
public static string ConvertOutline(IList<LatexExpression> outline, LatexToMathMLConverter customization)
{
var bld = new StringBuilder();
var backupTextSize = customization.CurrentTextSize;
var backupTextStyle = customization.CurrentTextStyle;
foreach (var child in outline)
{
bld.Append(child.Convert());
}
customization.CurrentTextSize = backupTextSize;
customization.CurrentTextStyle = backupTextStyle;
return bld.ToString();
}
/// <summary>
/// Initializes a new instance of the BibtexItem class.
/// </summary>
/// <param name="type">the Bibtex type of the item.</param>
/// <param name="name">The name of the item.</param>
/// <param name="number">The cite number of the item.</param>
/// <param name="values">The data associated with the item.</param>
/// <param name="customization"></param>
public BibtexItem(string type, string name, int number,
Dictionary<string, string> values, LatexToMathMLConverter customization)
{
Type = type;
Name = name;
Number = number;
_values = new Dictionary<string, List<LatexExpression>>(values.Count);
foreach (var pair in values)
{
var root = LatexExpression.CreateRoot(new StringReader(pair.Value), customization);
_values.Add(pair.Key, root.Expressions[0]);
}
}
static void Main(string[] args)
{
#if MONO
LatexToMathMLConverter.GhostScriptBinaryPath = "gs";
#else
LatexToMathMLConverter.GhostScriptBinaryPath = @"C:\\Program Files (x86)\\gs\\gs8.64\\bin\\gswin32c.exe";
#endif
var lmm = new LatexToMathMLConverter(
"E:\\source.txt",
Encoding.GetEncoding(1251),
"E:\\source.xml");
lmm.ValidateResult = true;
lmm.Convert();
}
private static string HandleStr(string str)
{
string latexBegin = "\\documentclass{article} \\begin{document}";
string latexEnd = "\\end{document}";
string oxmlText = "<w:p><w:r><w:t>{0}</w:t></w:r></w:p>";
StringBuilder result = new StringBuilder("<w:p>");
if (str.IndexOf(@"\(") > 0 || str.IndexOf(@"\)") > 0)
{
var mathArray = str.Split(new string[] { @"\(" }, str.Length, StringSplitOptions.None);
for (int i = 0; i < mathArray.Length; i++)
{
var mstr = mathArray[i];
if (mstr.IndexOf(@"\)") > 0)
{
var mathArray1 = mstr.Split(new string[] { @"\)" }, mstr.Length, StringSplitOptions.None);
if (mathArray1.Length > 0)
{
var latexxml = latexBegin + "$" + mathArray1[0] + "$" + latexEnd;
var lmm = new LatexToMathMLConverter(latexxml);
var mathxml = lmm.ConvertToText();
var omml = OpenXmlWord.ConvertMathMl2OMML(mathxml);
result.Append(omml);
}
if (mathArray1.Length > 1)
{
result.AppendFormat("<w:r><w:t>{0}</w:t></w:r>", mathArray1[1]);
}
}
else
{
result.AppendFormat("<w:r><w:t>{0}</w:t></w:r>", mstr);
}
}
}
else
{
result.AppendFormat("<w:r><w:t>{0}</w:t></w:r>", str);
}
result.Append("</w:p>");
return result.ToString();
}
static void Main(string[] args)
{
Console.WriteLine("Graphics can be automatically converted from eps/pdf to png. The path to GhostScript must be set to provide that.\n");
Console.WriteLine("For now, it is hard-coded: d:\\Program Files\\GhostScript\\gs9.00\\bin\\gswin32c.exe");
if (args.Length != 2)
{
Console.WriteLine("Usage: ltx2mml doc.tex doc.xhtml");
return;
}
#if MONO
LatexToMathMLConverter.GhostScriptBinaryPath = "gs";
#else
LatexToMathMLConverter.GhostScriptBinaryPath = @"d:\Program Files\GhostScript\gs9.00\bin\gswin32c.exe";
#endif
var lmm = new LatexToMathMLConverter(
args[0],
Encoding.GetEncoding(1251),
args[1]);
lmm.ValidateResult = true;
lmm.Convert();
}
/// <summary>
/// Builds a new LatexExpression instance (front).
/// </summary>
/// <param name="parent">The parent of the builded expression.</param>
/// <param name="parentChildNumber">Index of the parent child outline.</param>
/// <param name="indexInParentChild">Index in the parent child outline.</param>
/// <param name="verbatimMode">True if verbatim mode is on; otherwise, false.</param>
/// <param name="beginning">The beginning string.</param>
/// <param name="rdr">The reader to read ahead.</param>
/// <param name="end">The stub of the unparsed part.</param>
/// <param name="mathMode">The math mode switch.</param>
/// <param name="whitespaceBefore">Indicates whether there was at least one whitespace char before the returned result.</param>
/// <param name="customization">The LatexToMathMLConverter class instance to customize the conversion result.</param>
/// <returns></returns>
private static LatexExpression ReadFromTextReader(LatexExpression parent, int parentChildNumber,
ref int indexInParentChild, ref bool verbatimMode, bool mathMode, LatexToMathMLConverter customization,
string beginning, TextReader rdr, out string end, ref bool whitespaceBefore)
{
if (beginning == null && rdr == null)
{
end = null;
return null;
}
return ReadFromTextReaderInner(parent, parentChildNumber, ref indexInParentChild, ref verbatimMode,
mathMode, customization, beginning ?? rdr.ReadLine(), rdr, out end, ref whitespaceBefore);
}
/// <summary>
/// Parses the document and builds the document object tree.
/// </summary>
/// <param name="rdr">The reader to read the document from.</param>
/// <param name="customization">The LatexToMathMLConverter class instance to customize the conversion result.</param>
/// <returns>The root of the document object tree.</returns>
public static LatexExpression CreateRoot(TextReader rdr, LatexToMathMLConverter customization)
{
bool verbatimMode = false;
int rootIndex = 0;
var root = new LatexExpression(null, 0, ref rootIndex, ref verbatimMode,
ExpressionType.Root, false, customization, null, null, null)
{
Expressions = new List<List<LatexExpression>>(1)
};
var children = new List<LatexExpression>();
string beginning = null;
string end;
LatexExpression cmd;
rootIndex = 0;
bool mathMode = false;
bool whitespaceBefore = false;
while ((cmd = ReadFromTextReader(root, 0, ref rootIndex, ref verbatimMode,
mathMode, customization, beginning, rdr, out end, ref whitespaceBefore)) != null)
{
CheckMathMode(cmd, ref mathMode);
beginning = end;
children.Add(cmd);
}
root.Expressions.Add(children);
return root;
}
/// <summary>
/// Initializes a new instance of the LatexExpression class.
/// </summary>
/// <param name="parent">The parent of the builded expression.</param>
/// <param name="parentChildNumber">Index of the parent child outline.</param>
/// <param name="indexInParentChild">Index in the parent child outline.</param>
/// <param name="verbatimMode">True if verbatim mode is on; otherwise, false.</param>
/// <param name="type">The expression type.</param>
/// <param name="mathMode">The math mode switch.</param>
/// <param name="name">The expression name.</param>
/// <param name="options">The options of the expression.</param>
/// <param name="customization">The LatexToMathMLConverter class instance to customize the conversion result.</param>
/// <param name="values">The child outlines of the expression.</param>
private LatexExpression(LatexExpression parent, int parentChildNumber, ref int indexInParentChild,
ref bool verbatimMode, ExpressionType type, bool mathMode, LatexToMathMLConverter customization,
string name, string options, params string[] values)
{
Parent = parent;
ParentChildNumber = parentChildNumber;
IndexInParentChild = indexInParentChild++;
Customization = customization;
Name = name;
ExprType = type;
MathMode = mathMode;
#region Switch verbatim mode on/off
if (type == ExpressionType.Verbatim)
{
verbatimMode = false;
}
if (Expressions != null && Name == "begin" &&
Expressions[0][0].Name == "verbatim" && Expressions.Count == 1)
{
verbatimMode = true;
}
#endregion
ParseOptions(options);
if (values != null)
{
ParseExpressions(values);
}
#region If a math block, add the alternative text
if (type == ExpressionType.InlineMath || type == ExpressionType.BlockMath)
{
// ReSharper disable PossibleNullReferenceException
Expressions.Add(new List<LatexExpression>());
int index = 0;
Expressions[1].Add(new LatexExpression(this, 1, ref index, ref verbatimMode,
ExpressionType.PlainText, false, Customization, values[0], null, null));
// ReSharper restore PossibleNullReferenceException
}
#endregion
#region Post-parse plain text if in math mode
if (ExprType == ExpressionType.PlainText && mathMode && Name.Length > 1 &&
(Parent.ExprType != ExpressionType.Block || Parent.Name != "PlainText") &&
(Parent.ExprType != ExpressionType.Command || Parent.Name != "begin" && Parent.Name != "end"))
{
ExprType = ExpressionType.Block;
Name = "PlainText";
#region Parse
var list = new List<string>();
var buf = "" + name[0];
for (int pos = 1; pos < name.Length; pos++)
{
var chrPre = name[pos - 1];
var chr = name[pos];
if (char.IsWhiteSpace(chr))
{
list.Add(buf);
buf = "";
continue;
}
if (char.IsDigit(chr))
{
#region Digit
if (char.IsDigit(chrPre))
{
buf += chr;
continue;
}
if (char.IsLetter(chr) || chr == '(')
{
list.Add("InvisibleTimes");
}
list.Add(buf);
buf = "" + chr;
continue;
#endregion
}
if (char.IsLetter(chr))
{
#region Letter
if (char.IsLetter(chrPre))
{
buf += chr;
continue;
}
if (char.IsDigit(chr) || chr == '(')
{
list.Add("InvisibleTimes");
}
list.Add(buf);
buf = "" + chr;
continue;
#endregion
}
#region >=, <=
if (chr == '=')
{
if (chrPre == '>' || chrPre == '<')
{
buf += chr;
}
}
#endregion
list.Add(buf);
buf = "" + chr;
}
list.Add(buf);
#endregion
Expressions = new List<List<LatexExpression>>(list.Count) {new List<LatexExpression>()};
int i;
for (i = 0; i < list.Count;)
{
if (list[i].Trim() != "")
{
Expressions[0].Add(new LatexExpression(this, 0, ref i, ref verbatimMode,
ExpressionType.PlainText, true, customization, list[i].Trim(), null, null));
}
else
{
i++;
}
}
}
#endregion
}
/// <summary>
/// Initializes a new instance of the LatexExpression class of type ExpressionType.Block.
/// </summary>
/// <param name="name">The name of the block.</param>
/// <param name="parent">The parent of the builded expression.</param>
/// <param name="parentChildNumber">Index of the parent child outline.</param>
/// <param name="indexInParentChild">Index in the parent child outline.</param>
/// <param name="customization">The LatexToMathMLConverter class instance to customize the conversion result.</param>
public LatexExpression(string name, LatexExpression parent, int parentChildNumber, int indexInParentChild, LatexToMathMLConverter customization)
{
Name = name;
Customization = customization;
ExprType = ExpressionType.Block;
MathMode = parent.MathMode |
parent.ExprType == ExpressionType.BlockMath | parent.ExprType == ExpressionType.InlineMath;
Parent = parent;
ParentChildNumber = parentChildNumber;
IndexInParentChild = indexInParentChild;
Expressions = new List<List<LatexExpression>> {new List<LatexExpression>()};
}
/// <summary>
/// Builds the document object tree.
/// </summary>
/// <param name="customization">The LatexToMathMLConverter class instance to customize the conversion result.</param>
/// <remarks>The parsing procedure consists of stand-alone passes, so that it resembles a compiler pipeline.</remarks>
public void Parse(LatexToMathMLConverter customization)
{
// Replace \begin{equation} and \end{equation} with $$. Do better later.
_source = _source.Replace("\\begin{equation}", "\n$$");
_source = _source.Replace("\\end{equation}", "$$\n");
foreach (var rule in PreformatRules)
{
_source = _source.Replace(rule[0], rule[1]);
}
var rdr = new StringReader(_source);
const byte PASS_COUNT = 14;
byte step = 1;
// Build the tree
LogInfo("CreateRoot");
_root = LatexExpression.CreateRoot(rdr, customization);
OnProgressEvent(step++, PASS_COUNT);
// PJ: Wrap inside \begin{document} and \end{document} if these are missing
AddDocument(_root);
// Include the \input files
LogInfo("IncludeImports");
IncludeImports(Root.Expressions[0]);
OnProgressEvent(step++, PASS_COUNT);
// Rebuild tree with custom commands
_customCommands = new Dictionary<string, LatexExpression>();
LogInfo("RecursiveParseCustomCommands");
RecursiveParseCustomCommands(Root.Expressions[0]);
OnProgressEvent(step++, PASS_COUNT);
// Ensure that commands like \title are out of the document scope
LogInfo("MoveCommandsOutOfDocument");
MoveCommandsOutOfDocument(Root.Expressions[0]);
OnProgressEvent(step++, PASS_COUNT);
// Incapsulate fragments between \begin and \end
LogInfo("IncapsulateCommands");
IncapsulateCommands(Root.Expressions[0]);
OnProgressEvent(step++, PASS_COUNT);
// Post-parse arrays and tabular
LogInfo("PostParseTables");
PostParseTables(Root.Expressions[0], customization);
OnProgressEvent(step++, PASS_COUNT);
// Build super- and subscripts
LogInfo("BuildScripts");
BuildScripts(Root.Expressions[0], customization);
OnProgressEvent(step++, PASS_COUNT);
// Build lists
LogInfo("BuildLists");
BuildLists(Root.Expressions[0]);
OnProgressEvent(step++, PASS_COUNT);
// Build paragraph blocks
LogInfo("BuildParagraphs");
BuildParagraphs(Root.FindDocument().Expressions[0], customization);
OnProgressEvent(step++, PASS_COUNT);
// Simplify math blocks that begin with baseless scripts
LogInfo("SimplifyScripts");
//SimplifyBaselessScripts(Root.Expressions[0]);
OnProgressEvent(step++, PASS_COUNT);
// Numerate blocks (needed for the next step)
LogInfo("NumerateBlocks");
NumerateBlocks(Root.FindDocument().Expressions[0]);
Root.Customization.Counters.Add("document", 0);
OnProgressEvent(step++, PASS_COUNT);
// Simplify math blocks that begin with baseless scripts
LogInfo("PreProcessLabels");
PreprocessLabels(Root.FindDocument().Expressions[0]);
Root.Customization.Counters.Clear();
OnProgressEvent(step++, PASS_COUNT);
// Deal with algorithmic blocks
LogInfo("PreprocessAlgorithms");
PreprocessAlgorithms(Root.FindDocument().Expressions[0]);
OnProgressEvent(step++, PASS_COUNT);
// Attach the bibliography
LogInfo("AttachBibliography");
AttachBibliography();
OnProgressEvent(step++, PASS_COUNT);
LogInfo("Finished");
}
public void UpdatePlugg(Plugg p, PluggContent pc)
{
//For restore if something goes wrong
Plugg oldP = GetPlugg(p.PluggId);
IEnumerable<PluggContent> oldPCs = GetAllContentInPlugg(p.PluggId);
rep.UpdatePlugg(p); //No repair necessary if this fails
//For now, remove all PluggContent and recreate in all languages from pc. Fix this when we can deal with translations
try
{
foreach (PluggContent pcDelete in oldPCs)
{
rep.DeletePluggContent(pcDelete);
}
pc.PluggId = p.PluggId;
if (pc.LatexText != null)
{
LatexToMathMLConverter myConverter = new LatexToMathMLConverter(pc.LatexText);
myConverter.Convert();
pc.LatexTextInHtml = myConverter.HTMLOutput;
}
LocaleController lc = new LocaleController();
var locales = lc.GetLocales(PortalID);
foreach (var locale in locales)
{
pc.CultureCode = locale.Key;
rep.CreatePluggContent(pc);
}
}
catch (Exception)
{
//recreate old Plugg/PluggContent before rethrow
var pcs = GetAllContentInPlugg(p.PluggId);
foreach (PluggContent pcDelete in pcs)
{
rep.DeletePluggContent(pcDelete);
}
rep.DeletePlugg(p);
rep.CreatePlugg(oldP);
foreach (PluggContent oldPC in oldPCs)
rep.CreatePluggContent(oldPC);
throw;
}
}
/// <summary>
/// Post-parses arrays and tabular.
/// </summary>
/// <param name="outline">The outline of a LatexExpression instance.</param>
/// <param name="customization">The LatexToMathMLConverter class instance to customize the conversion result.</param>
private static void PostParseTables(IList<LatexExpression> outline, LatexToMathMLConverter customization)
{
for (int i = 0; i < outline.Count; i++)
{
if (outline[i].ExprType == ExpressionType.Block &&
(TableLikeBlockNames.Contains(outline[i].Name)))
{
int parentChildNumber = outline[i].Expressions.Count == 1? 0 : 1;
var main = outline[i].Expressions[parentChildNumber];
var table = new List<List<List<LatexExpression>>>(3) {new List<List<LatexExpression>>(3)};
#region Build table
int rowIndex = 0;
for (int j = 0; ; j++)
{
var cell = new List<LatexExpression>(2);
for (; j < main.Count &&
!(main[j].Name == "\\" && main[j].ExprType == ExpressionType.Command) &&
!(main[j].Name == "&" && main[j].ExprType == ExpressionType.PlainText)
; j++)
{
// \hline won't do the same in XHTML
if (main[j].ExprType == ExpressionType.Command && main[j].Name == "hline") continue;
if (main[j].ExprType == ExpressionType.Comment) continue;
cell.Add(main[j]);
}
if (cell.Count > 0)
{
table[rowIndex].Add(cell);
}
if (j == main.Count)
{
break;
}
if (main[j].Name == "\\")
{
rowIndex++;
table.Add(new List<List<LatexExpression>>(3));
}
}
if (table[rowIndex].Count == 0)
{
table.RemoveAt(rowIndex);
}
#endregion
#region Link table
main = new List<LatexExpression>(table.Count);
for (int j = 0; j < table.Count; j++)
{
// Add row
main.Add(new LatexExpression("", outline[i], parentChildNumber, j, customization));
for (int k = 0; k < table[j].Count; k++)
{
// Add column cell
main[j].Expressions[0].Add(new LatexExpression("", main[j], 0, k, customization));
for (int m = 0; m < table[j][k].Count; m++)
{
table[j][k][m].Parent = main[j].Expressions[0][k];
table[j][k][m].ParentChildNumber = 0;
table[j][k][m].IndexInParentChild = m;
// Add cell atom
main[j].Expressions[0][k].Expressions[0].Add(table[j][k][m]);
}
}
}
outline[i].Expressions[parentChildNumber] = main;
#endregion
}
}
for (int i = 0; i < outline.Count; i++)
{
if (outline[i].Expressions != null)
{
foreach (var subTree in outline[i].Expressions)
{
PostParseTables(subTree, customization);
}
}
}
}
/// <summary>
/// Performs the conversion procedure of math blocks.
/// </summary>
/// <param name="outline">The sequence of expressions to convert.</param>
/// <param name="altText">The alternative text.</param>
/// <param name="inline">Indicates whether the math block is inline.</param>
/// <returns>The converted XML string.</returns>
private static string CommonConvert(IList<LatexExpression> outline, string altText,
bool inline, LatexToMathMLConverter customization)
{
if (outline.Count == 0) return "";
var bld = new StringBuilder();
AppendMathProlog(bld, altText, inline, customization);
bld.Append("<mrow>\n");
bld.Append(SequenceConverter.ConvertOutline(outline, customization));
bld.Append("\n</mrow>\n");
AppendMathEpilog(bld);
return bld.ToString();
}
/// <summary>
/// Initializes a new instance of the BibtexParser class.
/// </summary>
/// <param name="rdr"></param>
public BibtexParser(StringReader rdr, LatexToMathMLConverter customization)
{
_rdr = rdr;
_customization = customization;
}
private bool HandleStr(string str, Paragraph p)
{
try
{
string latexBegin = "\\documentclass{article} \\begin{document}";
string latexEnd = "\\end{document}";
var run1 = new Run();
if (!string.IsNullOrEmpty(str) && (str.IndexOf(@"\(") > 0 || str.IndexOf(@"\)") > 0))
{
var mathArray = str.Split(new string[] { @"\(" }, str.Length, StringSplitOptions.None);
for (int i = 0; i < mathArray.Length; i++)
{
var mstr = mathArray[i];
if (mstr.IndexOf(@"\)") > 0)
{
var mathArray1 = mstr.Split(new string[] { @"\)" }, mstr.Length, StringSplitOptions.None);
if (mathArray1.Length > 0)
{
var latexxml = latexBegin + "$" + mathArray1[0] + "$" + latexEnd;
var lmm = new LatexToMathMLConverter(latexxml);
var mathxml = lmm.ConvertToText();
var omml = ConvertMathMl2OMML(mathxml);
run1 = new Run();
WritOfficeMathMLToWord(omml, run1);
p.Append(run1);
}
if (mathArray1.Length > 1)
{
run1 = new Run();
run1.Append(new Text(mathArray1[1]));
p.Append(run1);
}
}
else
{
run1 = new Run();
run1.Append(new Text(mstr));
p.Append(run1);
}
}
}
else
{
run1 = new Run();
run1.Append(new Text(str));
p.Append(run1);
}
}
catch (Exception ex)
{
throw ex;
}
return true;
}
/// <summary>
/// Recursively build paragragh structure.
/// </summary>
/// <param name="list">The outline of a LatexExpression instance.</param>
/// <param name="customization">The LatexToMathMLConverter class instance to customize the conversion result.</param>
private static void BuildParagraphs(List<LatexExpression> list, LatexToMathMLConverter customization)
{
for (int i = 0; i < list.Count; i++)
{
if (list[i].Expressions != null)
{
foreach (var subTree in list[i].Expressions)
{
BuildParagraphs(subTree, customization);
}
}
bool isParagraph = list[i].ExprType == ExpressionType.Command &&
list[i].Name.IndexOf("paragraph") > -1 && !list[i].MathMode;
bool isLikeParagraph = !list[i].MathMode && (list[i].ExprType == ExpressionType.Command &&
list[i].Name.IndexOf("section") > -1 ||
list[i].ExprType == ExpressionType.BlockMath ||
list[i].ExprType == ExpressionType.Block && list[i].Name != "" ||
list[i].ExprType == ExpressionType.Verbatim);
if (isParagraph || isLikeParagraph)
{
int j;
#region Set j to the paragraph breaker expression index
bool found = false;
for (j = i + 1; j < list.Count; j++)
{
if (list[j].ExprType == ExpressionType.Command &&
(list[j].Name.IndexOf("paragraph") > -1 || list[j].Name.IndexOf("section") > -1) ||
list[j].ExprType == ExpressionType.Block && list[j].Name != "" ||
list[j].ExprType == ExpressionType.BlockMath ||
list[j].ExprType == ExpressionType.Verbatim)
{
found = true;
break;
}
}
if (!found)
{
j = list.Count;
}
#endregion
if (isParagraph)
{
#region Create and link the block
var block = new List<LatexExpression>(j - i - 1);
List<LatexExpression> paragraphTitle = null;
if (list[i].Expressions != null)
{
paragraphTitle = list[i].Expressions[0];
}
list[i] = new LatexExpression(list[i].Name, list[i].Parent, list[i].ParentChildNumber, i, customization);
int parentChildNumber = 0;
if (paragraphTitle != null)
{
list[i].Expressions[0] = paragraphTitle;
list[i].Expressions.Add(new List<LatexExpression>());
parentChildNumber = 1;
}
for (int k = i + 1; k < j; k++)
{
list[k].Parent = list[i];
list[k].ParentChildNumber = parentChildNumber;
list[k].IndexInParentChild = k - i - 1;
block.Add(new LatexExpression(list[k]));
}
list[i].Expressions[parentChildNumber] = block;
#endregion
if (j - i - 1 > 0)
{
list.RemoveRange(i + 1, j - i - 1);
#region Update indices after the block
int delta = j - i - 1;
for (int k = i + 1; k < list.Count; k++)
{
list[k].IndexInParentChild -= delta;
}
#endregion
}
}
if (isLikeParagraph && j - i > 1)
{
#region Create and link the new block
var expr = new LatexExpression("paragraph", list[i + 1].Parent, list[i + 1].ParentChildNumber, i + 1, customization);
for (int k = i + 1; k < j; k++)
{
list[k].Parent = expr;
list[k].ParentChildNumber = 0;
list[k].IndexInParentChild = k - i - 1;
expr.Expressions[0].Add(new LatexExpression(list[k]));
}
list[i + 1] = expr;
#endregion
if (j - i - 1 > 1)
{
list.RemoveRange(i + 2, j - i - 2);
#region Update indices after the block
int delta = j - i - 2;
for (int k = i + 2; k < list.Count; k++)
{
list[k].IndexInParentChild -= delta;
}
#endregion
}
}
}
}
}
/// <summary>
/// Initializes a new instance of the LatexParser class.
/// </summary>
/// <param name="source">The source string to build the tree from.</param>
/// <param name="customization">The LatexToMathMLConverter class instance to customize the conversion result.</param>
public LatexParser(string source, LatexToMathMLConverter customization)
{
if (String.IsNullOrEmpty(source))
{
throw new ArgumentException("The parameter can not be null or empty.", "source");
}
_source = source;
_customization = customization;
}
/// <summary>
/// Builds a new LatexExpression instance (main).
/// </summary>
/// <param name="parent">The parent of the builded expression.</param>
/// <param name="parentChildNumber">Index of the parent child outline.</param>
/// <param name="indexInParentChild">Index in the parent child outline.</param>
/// <param name="verbatimMode">True if verbatim mode is on; otherwise, false.</param>
/// <param name="beginning">The beginning string.</param>
/// <param name="rdr">The reader to read ahead.</param>
/// <param name="mathMode">The math mode switch.</param>
/// <param name="end">The stub of the unparsed part.</param>
/// <param name="whitespaceBefore">Indicates whether there was at least one whitespace char before the returned result.</param>
/// <param name="customization">The LatexToMathMLConverter class instance to customize the conversion result.</param>
/// <returns>The parsed LatexExpression instance.</returns>
private static LatexExpression ReadFromTextReaderInner(LatexExpression parent, int parentChildNumber,
ref int indexInParentChild, ref bool verbatimMode, bool mathMode, LatexToMathMLConverter customization,
string beginning, TextReader rdr, out string end, ref bool whitespaceBefore)
{
string name;
#region Verbatim
if (verbatimMode)
{
name = ReadToVerbatimEnd(beginning, rdr, out end);
return new LatexExpression(parent, parentChildNumber, ref indexInParentChild,
ref verbatimMode, ExpressionType.Verbatim, false, customization, name, null, null);
}
#endregion
bool whitespaceBeforeGuard;
string str = ReadToNotEmptyString(beginning, rdr, out whitespaceBeforeGuard);
whitespaceBefore |= whitespaceBeforeGuard;
if (str == null)
{
end = null;
return null;
}
string value;
switch (str[0])
{
case '\\':
#region Command
string options;
string[] values;
name = Regex.Match(str.Substring(1), @"^[a-zA-Z]+\*?").Value;
if (String.IsNullOrEmpty(name))
{
name = "" + str[1];
options = null;
if (name != "[")
{
values = null;
end = str.Substring(2);
}
else // Math
{
value = ParseBraces(ref str, rdr, "\\[", "\\]", out whitespaceBefore);
end = str;
return new LatexExpression(parent, parentChildNumber, ref indexInParentChild,
ref verbatimMode, ExpressionType.BlockMath, mathMode, customization,
name, null, value);
}
}
else
{
ParseCommandOptionsAndValues(
str.Substring(name.Length + 1), rdr, out end,
out options, out values, out whitespaceBefore);
}
return new LatexExpression(parent, parentChildNumber, ref indexInParentChild, ref verbatimMode,
ExpressionType.Command, mathMode, customization, name, options, values);
#endregion
case '$':
#region Math
ExpressionType type;
if (str[1] == '$')
{
name = "$$";
value = ParseBraces(ref str, rdr, "$$", "$$", out whitespaceBefore);
type = ExpressionType.BlockMath;
}
else
{
name = "$";
value = ParseBraces(ref str, rdr, "$", "$", out whitespaceBefore);
type = ExpressionType.InlineMath;
}
end = str;
return new LatexExpression(parent, parentChildNumber, ref indexInParentChild,
ref verbatimMode, type, false, customization, name, null, value);
#endregion
case '%':
#region Comment
end = null;
return new LatexExpression(parent, parentChildNumber, ref indexInParentChild, ref verbatimMode,
ExpressionType.Comment, false, customization, str.Substring(1), null, null);
#endregion
case '{':
#region Block
value = ParseBraces(ref str, rdr, "{", "}", out whitespaceBefore);
end = str;
return new LatexExpression(parent, parentChildNumber, ref indexInParentChild,
ref verbatimMode, ExpressionType.Block, mathMode, customization, "{}", null, value);
#endregion
case '&':
#region Table cell
end = str.Substring(1);
return new LatexExpression(parent, parentChildNumber, ref indexInParentChild, ref verbatimMode,
ExpressionType.PlainText, mathMode, customization, "&", null, null);
#endregion
case '^':
case '_':
#region Block for sub and sup
if (mathMode)
{
name = "" + str[0];
str = ReadToNotEmptyString(str.Substring(1), rdr, out whitespaceBefore);
switch (str[0])
{
case '{':
value = ParseBraces(ref str, rdr, "{", "}", out whitespaceBefore);
end = str;
break;
case '\\':
var cmdName = Regex.Match(str.Substring(1), @"^[a-zA-Z]+\*?").Value;
ParseCommandOptionsAndValues(
str.Substring(cmdName.Length + 1), rdr, out end,
out options, out values, out whitespaceBefore);
value = "\\" + cmdName + options;
if (values != null)
{
for (int i = 0; i < values.Length; i++)
{
value += "{" + values[i] + "}";
}
}
break;
default:
value = "" + str[0];
if (char.IsDigit(str[0]))
{
value = Regex.Match(str, @"\d+").Value;
}
if (char.IsLetter(str[0]))
{
value = Regex.Match(str, @"[a-zA-Z]+").Value;
}
end = str.Substring(value.Length);
break;
}
return new LatexExpression(parent, parentChildNumber, ref indexInParentChild,
ref verbatimMode, ExpressionType.Block, true, customization, name, null, value);
}
goto default;
#endregion
default:
#region Plain text block
name = "";
var stopChars = mathMode ? new[] { '\\', '$', '{', '%', '&', '^', '_' } :
new[] { '\\', '$', '{', '%', '&' };
int stopPos;
while ((stopPos = GetStopPos(str, stopChars)) == -1)
{
if (rdr != null)
{
name += str + " ";
str = rdr.ReadLine();
if (str == null) // End of the document
{
name = name.Substring(0, name.Length - 1);
break;
}
if (str.Trim() == "")
{
str = "\\paragraph";
stopPos = 0;
break;
}
}
else
{
stopPos = str.Length;
break;
}
}
if (str == null) // End of the document?
{
end = null;
}
else
{
name += str.Substring(0, stopPos);
if (stopPos < str.Length && (str[stopPos] == '^' || str[stopPos] == '_'))
{
var match = Regex.Match(name, @"[a-zA-Z]+\s*\Z");
var chunk = match.Value;
if (chunk.Trim() == "")
{
match = Regex.Match(name, @"\d+\s*\Z");
chunk = match.Value;
if (chunk.Trim() == "")
{
match = Regex.Match(name, @"\S\s*\Z");
chunk = match.Value.Trim();
}
}
if (name != chunk)
{
end = name.Substring(match.Index) + str.Substring(stopPos);
name = name.Substring(0, match.Index);
}
else
{
end = str.Substring(stopPos);
}
}
else
{
end = str.Substring(stopPos);
}
}
return new LatexExpression(parent, parentChildNumber, ref indexInParentChild, ref verbatimMode,
ExpressionType.PlainText, mathMode, customization, (whitespaceBefore? " " : "") + SmartTextTrim(name), null, null);
#endregion
}
}
public void SavePlugg(PluggContainer p)
{
try
{
bool isNew = p.ThePlugg.PluggId == 0;
//Temporary - remove soon
p.ThePlugg.Title = "Title no longer here";
p.ThePlugg.CreatedByUserId = 1;
p.ThePlugg.ModifiedByUserId = 1;
if (isNew)
rep.CreatePlugg(p.ThePlugg);
else
rep.UpdatePlugg(p.ThePlugg);
//Todo: Update..
p.TheTitle.ItemId = p.ThePlugg.PluggId;
p.TheTitle.ItemType = ETextItemType.PluggTitle;
p.TheTitle.CcStatus = ECCStatus.InCreationLanguage;
p.TheTitle.CreatedByUserId = p.ThePlugg.CreatedByUserId;
p.TheTitle.ModifiedByUserId = p.ThePlugg.ModifiedByUserId;
SavePhText(p.TheTitle);
//Todo: Update..
if (p.TheHtmlText != null)
{
p.TheHtmlText.ItemId = p.ThePlugg.PluggId;
p.TheHtmlText.ItemType = ETextItemType.PluggHtml;
p.TheHtmlText.CcStatus = ECCStatus.InCreationLanguage;
p.TheHtmlText.CreatedByUserId = p.ThePlugg.CreatedByUserId;
p.TheHtmlText.ModifiedByUserId = p.ThePlugg.ModifiedByUserId;
SavePhText(p.TheHtmlText);
}
//Todo: Update..
if (p.TheLatex != null)
{
p.TheLatex.ItemId = p.ThePlugg.PluggId;
p.TheLatex.ItemType = ELatexType.Plugg;
p.TheLatex.CcStatus = ECCStatus.InCreationLanguage;
p.TheLatex.CreatedByUserId = p.ThePlugg.CreatedByUserId;
p.TheLatex.ModifiedByUserId = p.ThePlugg.ModifiedByUserId;
LatexToMathMLConverter myConverter = new LatexToMathMLConverter(p.TheLatex.Text);
myConverter.Convert();
p.TheLatex.HtmlText = myConverter.HTMLOutput;
SaveLatexText(p.TheLatex);
}
LocaleController lc = new LocaleController();
var locales = lc.GetLocales(PortalID);
foreach (var locale in locales)
{
if (locale.Key != p.ThePlugg.CreatedInCultureCode)
{
GoogleTranslate(p.TheTitle, locale.Key);
if (p.TheHtmlText != null)
GoogleTranslate(p.TheHtmlText, locale.Key);
if (p.TheLatex != null)
GoogleTranslate(p.TheLatex, locale.Key);
}
}
//Create PluggPage
DNNHelper d = new DNNHelper();
string pageUrl = p.ThePlugg.PluggId.ToString();
string pageName = pageUrl + ": " + p.TheTitle.Text;
TabInfo newTab = d.AddPluggPage(pageName, pageUrl);
p.ThePlugg.TabId = newTab.TabID;
rep.UpdatePlugg(p.ThePlugg);
}
catch (Exception)
{
//Todo: Update
DeletePlugg(p.ThePlugg);
throw;
}
}
/// <summary>
/// Must set Text, ItemId, ItemType, CultureCode, CultureCodeStatus and CreatedByUserId or it will not save anything
/// If text is versioned, it creates a new version
/// If text is not versioned, it creates new text or updates text depending on TextId.
/// </summary>
/// <param name="t"></param>
public void SaveLatexText(PHLatex t)
{
if (t.Text == null || t.ItemId == 0 || t.ItemType == ELatexItemType.NotSet || t.CultureCode == null ||
t.CultureCodeStatus == ECultureCodeStatus.NotSet || t.CreatedByUserId == 0)
return; //Nothing to save
if (t.ModifiedByUserId == 0)
t.ModifiedByUserId = t.CreatedByUserId;
t.ModifiedOnDate = DateTime.Now;
t.CurrentVersion = true;
if (t.HtmlText==null || t.HtmlText == "")
{
LatexToMathMLConverter myConverter = new LatexToMathMLConverter(t.Text);
myConverter.Convert();
t.HtmlText = myConverter.HTMLOutput;
}
bool isVersioned = (t.ItemType == ELatexItemType.PluggComponentLatex || t.ItemType == ELatexItemType.CourseLatexText);
if (isVersioned)
{
var prevText = rep.GetCurrentVersionLatexText(t.CultureCode, t.ItemId, t.ItemType);
if (prevText == null)
{
t.Version = 1;
}
else
{
t.Version = prevText.Version++;
prevText.CurrentVersion = false;
rep.UpdateLatexText(prevText);
}
t.CreatedOnDate = DateTime.Now;
rep.CreateLatexText(t);
}
else
{
t.Version = 0;
if (t.LatexId == 0)
{
t.CreatedOnDate = DateTime.Now;
rep.CreateLatexText(t);
}
else
rep.UpdateLatexText(t);
}
}
/// <summary>
/// Recursively build scripts (for msup, munder, etc.)
/// </summary>
/// <param name="list">The outline of a LatexExpression instance.</param>
/// <param name="customization">The LatexToMathMLConverter class instance to customize the conversion result.</param>
private static void BuildScripts(List<LatexExpression> list, LatexToMathMLConverter customization)
{
for (int i = 0; i < list.Count; i++)
{
if (list[i].Expressions != null)
{
foreach (var subTree in list[i].Expressions)
{
BuildScripts(subTree, customization);
}
}
if (list[i].ExprType == ExpressionType.Block &&
(list[i].Name == "^" || list[i].Name == "_") && i > 0)
{
if (list[i - 1].ExprType == ExpressionType.Command && list[i - 1].Name == "limits")
{
list[i - 1].EraseFromParent();
i--;
}
#region Place the previous expression to the script block
if (i < list.Count - 1 && list[i + 1].ExprType == ExpressionType.Block &&
(list[i + 1].Name == "^" || list[i + 1].Name == "_"))
{
var block = new LatexExpression("script" + list[i].Name + list[i + 1].Name, list[i].Parent,
list[i].ParentChildNumber, i - 1, customization);
block.MathMode = list[i].MathMode;
block.Expressions[0].Add(new LatexExpression(list[i - 1]));
block.Expressions[0].Add(new LatexExpression(list[i]));
block.Expressions[0].Add(new LatexExpression(list[i + 1]));
block.Expressions[0][0].Parent = block;
block.Expressions[0][0].ParentChildNumber = 0;
block.Expressions[0][0].IndexInParentChild = 0;
block.Expressions[0][0].MathMode = block.MathMode;
block.Expressions[0][1].Parent = block;
block.Expressions[0][1].ParentChildNumber = 0;
block.Expressions[0][1].IndexInParentChild = 1;
block.Expressions[0][1].MathMode = block.MathMode;
block.Expressions[0][2].Parent = block;
block.Expressions[0][2].ParentChildNumber = 0;
block.Expressions[0][2].IndexInParentChild = 2;
block.Expressions[0][2].MathMode = block.MathMode;
list[i - 1] = block;
list[i].EraseFromParent();
list[i].EraseFromParent();
}
else
{
var block = new LatexExpression("script" + list[i].Name, list[i].Parent, list[i].ParentChildNumber, i - 1, customization);
block.MathMode = list[i].MathMode;
block.Expressions[0].Add(new LatexExpression(list[i - 1]));
block.Expressions[0].Add(new LatexExpression(list[i]));
block.Expressions[0][0].Parent = block;
block.Expressions[0][0].ParentChildNumber = 0;
block.Expressions[0][0].IndexInParentChild = 0;
block.Expressions[0][0].MathMode = block.MathMode;
block.Expressions[0][1].Parent = block;
block.Expressions[0][1].ParentChildNumber = 0;
block.Expressions[0][1].IndexInParentChild = 1;
block.Expressions[0][1].MathMode = block.MathMode;
list[i - 1] = block;
list[i].EraseFromParent();
}
i--;
#endregion
}
}
}
