\hypertarget{class_qore_1_1_data_line_iterator}{}\section{Qore\+:\+:Data\+Line\+Iterator Class Reference}
\label{class_qore_1_1_data_line_iterator}\index{Qore\+::\+Data\+Line\+Iterator@{Qore\+::\+Data\+Line\+Iterator}}


This class defines a line iterator for string data.  




Inheritance diagram for Qore\+:\+:Data\+Line\+Iterator\+:
\nopagebreak
\begin{figure}[H]
\begin{center}
\leavevmode
\includegraphics[width=222pt]{class_qore_1_1_data_line_iterator__inherit__graph}
\end{center}
\end{figure}
\subsection*{Public Member Functions}
\begin{DoxyCompactItemize}
\item 
\mbox{\hyperlink{class_qore_1_1_data_line_iterator_a53ca2e16ed781527acd3e5237a19f081}{constructor}} (\mbox{\hyperlink{group__type__conversion__functions_gacf16b4126b795f4b6933ef3425cadae3}{string}} str, \+\_\+\+\_\+7\+\_\+ \mbox{\hyperlink{group__type__conversion__functions_gacf16b4126b795f4b6933ef3425cadae3}{string}} eol, bool \mbox{\hyperlink{group__string__functions_gae8d314e819a299d46d181696600d4293}{trim}}=\mbox{\hyperlink{group__boolean__constants_ga3ba2df91713a6249449347131ea526c3}{True}})
\begin{DoxyCompactList}\small\item\em creates the \mbox{\hyperlink{class_qore_1_1_data_line_iterator}{Data\+Line\+Iterator}} based on the string given \end{DoxyCompactList}\item 
\mbox{\hyperlink{class_qore_1_1_data_line_iterator_aaa5890d6209019446a8c5436ea5445bd}{copy}} ()
\begin{DoxyCompactList}\small\item\em Creates a new \mbox{\hyperlink{class_qore_1_1_data_line_iterator}{Data\+Line\+Iterator}} object, based on the same object being iterated in the original object. \end{DoxyCompactList}\item 
\mbox{\hyperlink{group__type__conversion__functions_gacf16b4126b795f4b6933ef3425cadae3}{string}} \mbox{\hyperlink{class_qore_1_1_data_line_iterator_a8f5d01c498dfcd61e6b88c3ef4803041}{get\+Encoding}} ()
\begin{DoxyCompactList}\small\item\em Returns the \mbox{\hyperlink{character_encoding}{character encoding}} for the Data\+Line\+Iterator. \end{DoxyCompactList}\item 
\mbox{\hyperlink{group__type__conversion__functions_gacf16b4126b795f4b6933ef3425cadae3}{string}} \mbox{\hyperlink{class_qore_1_1_data_line_iterator_affdfe2642623b31f782eda63e98f5d76}{get\+Line}} ()
\begin{DoxyCompactList}\small\item\em returns the current line in the data or throws an {\ttfamily I\+T\+E\+R\+A\+T\+O\+R-\/\+E\+R\+R\+OR} exception if the iterator is invalid \end{DoxyCompactList}\item 
\mbox{\hyperlink{group__type__conversion__functions_gacf16b4126b795f4b6933ef3425cadae3}{string}} \mbox{\hyperlink{class_qore_1_1_data_line_iterator_a0d695de4158d1f10ded8071ae96d3b88}{get\+Value}} ()
\begin{DoxyCompactList}\small\item\em returns the current line in the data or throws an {\ttfamily I\+T\+E\+R\+A\+T\+O\+R-\/\+E\+R\+R\+OR} exception if the iterator is invalid \end{DoxyCompactList}\item 
\mbox{\hyperlink{group__type__conversion__functions_ga2de8717e92c5f97ccc6511f6062d6502}{int}} \mbox{\hyperlink{class_qore_1_1_data_line_iterator_a2e9f211ca438b8b3f8a122b040ce46ae}{index}} ()
\begin{DoxyCompactList}\small\item\em returns the current iterator line number in the data (the first line is line 1) or 0 if not pointing at a valid element \end{DoxyCompactList}\item 
bool \mbox{\hyperlink{class_qore_1_1_data_line_iterator_afa97a63c0d6f6ae2410ae3c7ae68696e}{next}} ()
\begin{DoxyCompactList}\small\item\em Moves the current position to the next line in the data; returns \mbox{\hyperlink{group__boolean__constants_ga9da2b9a8003cd3788e48305f8a00540f}{False}} if there are no more lines to read; if the iterator is not pointing at a valid element before this call, the iterator will be positioned to the beginning of the data. \end{DoxyCompactList}\item 
\mbox{\hyperlink{class_qore_1_1_data_line_iterator_a5bcdb07579f2c7eb0629a822e22220bc}{reset}} ()
\begin{DoxyCompactList}\small\item\em Reset the iterator instance to its initial state. \end{DoxyCompactList}\item 
bool \mbox{\hyperlink{class_qore_1_1_data_line_iterator_af64f428889d1af031d68da288f2f9dbe}{valid}} ()
\begin{DoxyCompactList}\small\item\em returns \mbox{\hyperlink{group__boolean__constants_ga3ba2df91713a6249449347131ea526c3}{True}} if the iterator is currently pointing at a valid element, \mbox{\hyperlink{group__boolean__constants_ga9da2b9a8003cd3788e48305f8a00540f}{False}} if not \end{DoxyCompactList}\end{DoxyCompactItemize}


\subsection{Detailed Description}
This class defines a line iterator for string data. 

\begin{DoxySince}{Since}
Qore 0.\+8.\+12
\end{DoxySince}
\begin{DoxyParagraph}{Example\+: Data\+Line\+Iterator basic usage}

\begin{DoxyCode}
string str = \textcolor{stringliteral}{"a2ps-4.13-1332.1.x86\_64}
\textcolor{stringliteral}{a2ps-devel-4.13-1332.1.x86\_64}
\textcolor{stringliteral}{aaa\_base-11.3-7.2.x86\_64";}
\textcolor{stringliteral}{}
\textcolor{stringliteral}{DataLineIterator it(str);}
\textcolor{stringliteral}{}\textcolor{keywordflow}{while} (it.next()) \{
    \mbox{\hyperlink{group__string__functions_ga32070517a9f8a70a32ef48f83a6f128e}{printf}}(\textcolor{stringliteral}{"line %d = %n\(\backslash\)n"}, it.index(), it.getValue());
\}

line 1 = \textcolor{stringliteral}{"a2ps-4.13-1332.1.x86\_64"}
line 2 = \textcolor{stringliteral}{"a2ps-devel-4.13-1332.1.x86\_64"}
line 3 = \textcolor{stringliteral}{"aaa\_base-11.3-7.2.x86\_64"}
\end{DoxyCode}

\end{DoxyParagraph}
\begin{DoxySeeAlso}{See also}
\mbox{\hyperlink{class_qore_1_1_input_stream_line_iterator}{Qore\+::\+Input\+Stream\+Line\+Iterator}} 

\mbox{\hyperlink{class_qore_1_1_file_line_iterator}{Qore\+::\+File\+Line\+Iterator}} 
\end{DoxySeeAlso}


\subsection{Member Function Documentation}
\mbox{\Hypertarget{class_qore_1_1_data_line_iterator_a53ca2e16ed781527acd3e5237a19f081}\label{class_qore_1_1_data_line_iterator_a53ca2e16ed781527acd3e5237a19f081}} 
\index{Qore\+::\+Data\+Line\+Iterator@{Qore\+::\+Data\+Line\+Iterator}!constructor@{constructor}}
\index{constructor@{constructor}!Qore\+::\+Data\+Line\+Iterator@{Qore\+::\+Data\+Line\+Iterator}}
\subsubsection{\texorpdfstring{constructor()}{constructor()}}
{\footnotesize\ttfamily Qore\+::\+Data\+Line\+Iterator\+::constructor (\begin{DoxyParamCaption}\item[{\mbox{\hyperlink{group__type__conversion__functions_gacf16b4126b795f4b6933ef3425cadae3}{string}}}]{str,  }\item[{\+\_\+\+\_\+7\+\_\+ \mbox{\hyperlink{group__type__conversion__functions_gacf16b4126b795f4b6933ef3425cadae3}{string}}}]{eol,  }\item[{bool}]{trim = {\ttfamily \mbox{\hyperlink{group__boolean__constants_ga3ba2df91713a6249449347131ea526c3}{True}}} }\end{DoxyParamCaption})}



creates the \mbox{\hyperlink{class_qore_1_1_data_line_iterator}{Data\+Line\+Iterator}} based on the string given 


\begin{DoxyParams}{Parameters}
{\em str} & the string to iterate over; note that if this string is in a non-\/ascii-\/compatible character encoding, it will be converted to U\+T\+F-\/8 for processing in the constructor and the U\+T\+F-\/8 version of the string will be used for iterating in this object \\
\hline
{\em eol} & the optional end of line character(s) to use to detect lines in the data; if this string is not passed, then the end of line character(s) are detected automatically, and can be either {\ttfamily \char`\"{}\textbackslash{}n\char`\"{}}, {\ttfamily \char`\"{}\textbackslash{}r\char`\"{}}, or {\ttfamily \char`\"{}\textbackslash{}r\textbackslash{}n\char`\"{}}; if this string is passed and has a different \mbox{\hyperlink{character_encoding}{character encoding}} from this object\textquotesingle{}s (as determined by the {\ttfamily encoding} parameter), then it will be converted to the \mbox{\hyperlink{class_qore_1_1_data_line_iterator}{Data\+Line\+Iterator}}\textquotesingle{}s \mbox{\hyperlink{character_encoding}{character encoding}} \\
\hline
{\em trim} & if \mbox{\hyperlink{group__boolean__constants_ga3ba2df91713a6249449347131ea526c3}{True}} the string return values for the lines iterated will be trimmed of the eol bytes\\
\hline
\end{DoxyParams}

\begin{DoxyExceptions}{Exceptions}
{\em E\+N\+C\+O\+D\+I\+N\+G-\/\+C\+O\+N\+V\+E\+R\+S\+I\+O\+N-\/\+E\+R\+R\+OR} & this exception could be thrown if the eol argument has a different \mbox{\hyperlink{character_encoding}{character encoding}} from the data\textquotesingle{}s and an error occurs during encoding conversion \\
\hline
\end{DoxyExceptions}
\mbox{\Hypertarget{class_qore_1_1_data_line_iterator_aaa5890d6209019446a8c5436ea5445bd}\label{class_qore_1_1_data_line_iterator_aaa5890d6209019446a8c5436ea5445bd}} 
\index{Qore\+::\+Data\+Line\+Iterator@{Qore\+::\+Data\+Line\+Iterator}!copy@{copy}}
\index{copy@{copy}!Qore\+::\+Data\+Line\+Iterator@{Qore\+::\+Data\+Line\+Iterator}}
\subsubsection{\texorpdfstring{copy()}{copy()}}
{\footnotesize\ttfamily Qore\+::\+Data\+Line\+Iterator\+::copy (\begin{DoxyParamCaption}{ }\end{DoxyParamCaption})}



Creates a new \mbox{\hyperlink{class_qore_1_1_data_line_iterator}{Data\+Line\+Iterator}} object, based on the same object being iterated in the original object. 

\begin{DoxyParagraph}{Example\+:}

\begin{DoxyCode}
DataLineIterator ni = i.copy();
\end{DoxyCode}
 
\end{DoxyParagraph}
\mbox{\Hypertarget{class_qore_1_1_data_line_iterator_a8f5d01c498dfcd61e6b88c3ef4803041}\label{class_qore_1_1_data_line_iterator_a8f5d01c498dfcd61e6b88c3ef4803041}} 
\index{Qore\+::\+Data\+Line\+Iterator@{Qore\+::\+Data\+Line\+Iterator}!get\+Encoding@{get\+Encoding}}
\index{get\+Encoding@{get\+Encoding}!Qore\+::\+Data\+Line\+Iterator@{Qore\+::\+Data\+Line\+Iterator}}
\subsubsection{\texorpdfstring{get\+Encoding()}{getEncoding()}}
{\footnotesize\ttfamily \mbox{\hyperlink{group__type__conversion__functions_gacf16b4126b795f4b6933ef3425cadae3}{string}} Qore\+::\+Data\+Line\+Iterator\+::get\+Encoding (\begin{DoxyParamCaption}{ }\end{DoxyParamCaption})}



Returns the \mbox{\hyperlink{character_encoding}{character encoding}} for the Data\+Line\+Iterator. 

\begin{DoxyParagraph}{Code Flags\+:}
\mbox{\hyperlink{code_flags_CONSTANT}{C\+O\+N\+S\+T\+A\+NT}}
\end{DoxyParagraph}
\begin{DoxyParagraph}{Example\+:}

\begin{DoxyCode}
string encoding = f.getEncoding();
\end{DoxyCode}

\end{DoxyParagraph}
\begin{DoxyReturn}{Returns}
the \mbox{\hyperlink{character_encoding}{character encoding}} for the Data\+Line\+Iterator 
\end{DoxyReturn}
\mbox{\Hypertarget{class_qore_1_1_data_line_iterator_affdfe2642623b31f782eda63e98f5d76}\label{class_qore_1_1_data_line_iterator_affdfe2642623b31f782eda63e98f5d76}} 
\index{Qore\+::\+Data\+Line\+Iterator@{Qore\+::\+Data\+Line\+Iterator}!get\+Line@{get\+Line}}
\index{get\+Line@{get\+Line}!Qore\+::\+Data\+Line\+Iterator@{Qore\+::\+Data\+Line\+Iterator}}
\subsubsection{\texorpdfstring{get\+Line()}{getLine()}}
{\footnotesize\ttfamily \mbox{\hyperlink{group__type__conversion__functions_gacf16b4126b795f4b6933ef3425cadae3}{string}} Qore\+::\+Data\+Line\+Iterator\+::get\+Line (\begin{DoxyParamCaption}{ }\end{DoxyParamCaption})\hspace{0.3cm}{\ttfamily [virtual]}}



returns the current line in the data or throws an {\ttfamily I\+T\+E\+R\+A\+T\+O\+R-\/\+E\+R\+R\+OR} exception if the iterator is invalid 

\begin{DoxyReturn}{Returns}
the current line in the data or throws an {\ttfamily I\+T\+E\+R\+A\+T\+O\+R-\/\+E\+R\+R\+OR} exception if the iterator is invalid
\end{DoxyReturn}
\begin{DoxyParagraph}{Code Flags\+:}
\mbox{\hyperlink{code_flags_RET_VALUE_ONLY}{R\+E\+T\+\_\+\+V\+A\+L\+U\+E\+\_\+\+O\+N\+LY}}
\end{DoxyParagraph}
\begin{DoxyParagraph}{Example\+:}

\begin{DoxyCode}
\textcolor{keywordflow}{while} (i.next()) \{
    \mbox{\hyperlink{group__string__functions_ga32070517a9f8a70a32ef48f83a6f128e}{printf}}(\textcolor{stringliteral}{"+ %y\(\backslash\)n"}, i.getLine());
\}
\end{DoxyCode}

\end{DoxyParagraph}

\begin{DoxyExceptions}{Exceptions}
{\em I\+T\+E\+R\+A\+T\+O\+R-\/\+E\+R\+R\+OR} & the iterator is not pointing at a valid element \\
\hline
{\em I\+T\+E\+R\+A\+T\+O\+R-\/\+T\+H\+R\+E\+A\+D-\/\+E\+R\+R\+OR} & this exception is thrown if this method is called from any thread other than the thread that created the object\\
\hline
\end{DoxyExceptions}
\begin{DoxySeeAlso}{See also}
\mbox{\hyperlink{class_qore_1_1_data_line_iterator_a0d695de4158d1f10ded8071ae96d3b88}{Data\+Line\+Iterator\+::get\+Value()}} 
\end{DoxySeeAlso}


Implements \mbox{\hyperlink{class_qore_1_1_abstract_line_iterator_a8ad4c0503f09b24e93bbeac266f2b2a0}{Qore\+::\+Abstract\+Line\+Iterator}}.

\mbox{\Hypertarget{class_qore_1_1_data_line_iterator_a0d695de4158d1f10ded8071ae96d3b88}\label{class_qore_1_1_data_line_iterator_a0d695de4158d1f10ded8071ae96d3b88}} 
\index{Qore\+::\+Data\+Line\+Iterator@{Qore\+::\+Data\+Line\+Iterator}!get\+Value@{get\+Value}}
\index{get\+Value@{get\+Value}!Qore\+::\+Data\+Line\+Iterator@{Qore\+::\+Data\+Line\+Iterator}}
\subsubsection{\texorpdfstring{get\+Value()}{getValue()}}
{\footnotesize\ttfamily \mbox{\hyperlink{group__type__conversion__functions_gacf16b4126b795f4b6933ef3425cadae3}{string}} Qore\+::\+Data\+Line\+Iterator\+::get\+Value (\begin{DoxyParamCaption}{ }\end{DoxyParamCaption})\hspace{0.3cm}{\ttfamily [virtual]}}



returns the current line in the data or throws an {\ttfamily I\+T\+E\+R\+A\+T\+O\+R-\/\+E\+R\+R\+OR} exception if the iterator is invalid 

\begin{DoxyReturn}{Returns}
the current line in the data or throws an {\ttfamily I\+T\+E\+R\+A\+T\+O\+R-\/\+E\+R\+R\+OR} exception if the iterator is invalid
\end{DoxyReturn}
\begin{DoxyParagraph}{Code Flags\+:}
\mbox{\hyperlink{code_flags_RET_VALUE_ONLY}{R\+E\+T\+\_\+\+V\+A\+L\+U\+E\+\_\+\+O\+N\+LY}}
\end{DoxyParagraph}
\begin{DoxyParagraph}{Example\+:}

\begin{DoxyCode}
\textcolor{keywordflow}{while} (i.next()) \{
    \mbox{\hyperlink{group__string__functions_ga32070517a9f8a70a32ef48f83a6f128e}{printf}}(\textcolor{stringliteral}{"+ %y\(\backslash\)n"}, i.getValue());
\}
\end{DoxyCode}

\end{DoxyParagraph}

\begin{DoxyExceptions}{Exceptions}
{\em I\+T\+E\+R\+A\+T\+O\+R-\/\+E\+R\+R\+OR} & the iterator is not pointing at a valid element \\
\hline
{\em I\+T\+E\+R\+A\+T\+O\+R-\/\+T\+H\+R\+E\+A\+D-\/\+E\+R\+R\+OR} & this exception is thrown if this method is called from any thread other than the thread that created the object\\
\hline
\end{DoxyExceptions}
\begin{DoxySeeAlso}{See also}
\mbox{\hyperlink{class_qore_1_1_data_line_iterator_affdfe2642623b31f782eda63e98f5d76}{Data\+Line\+Iterator\+::get\+Line()}} 
\end{DoxySeeAlso}


Implements \mbox{\hyperlink{class_qore_1_1_abstract_line_iterator_acc1342afce2820c3d1dded7aeb2b8dd8}{Qore\+::\+Abstract\+Line\+Iterator}}.

\mbox{\Hypertarget{class_qore_1_1_data_line_iterator_a2e9f211ca438b8b3f8a122b040ce46ae}\label{class_qore_1_1_data_line_iterator_a2e9f211ca438b8b3f8a122b040ce46ae}} 
\index{Qore\+::\+Data\+Line\+Iterator@{Qore\+::\+Data\+Line\+Iterator}!index@{index}}
\index{index@{index}!Qore\+::\+Data\+Line\+Iterator@{Qore\+::\+Data\+Line\+Iterator}}
\subsubsection{\texorpdfstring{index()}{index()}}
{\footnotesize\ttfamily \mbox{\hyperlink{group__type__conversion__functions_ga2de8717e92c5f97ccc6511f6062d6502}{int}} Qore\+::\+Data\+Line\+Iterator\+::index (\begin{DoxyParamCaption}{ }\end{DoxyParamCaption})\hspace{0.3cm}{\ttfamily [virtual]}}



returns the current iterator line number in the data (the first line is line 1) or 0 if not pointing at a valid element 

\begin{DoxyReturn}{Returns}
the current iterator line number in the data (the first line is line 1) or 0 if not pointing at a valid element
\end{DoxyReturn}
\begin{DoxyParagraph}{Code Flags\+:}
\mbox{\hyperlink{code_flags_CONSTANT}{C\+O\+N\+S\+T\+A\+NT}}
\end{DoxyParagraph}
\begin{DoxyParagraph}{Example\+:}

\begin{DoxyCode}
\textcolor{keywordflow}{while} (i.next()) \{
    \mbox{\hyperlink{group__string__functions_ga32070517a9f8a70a32ef48f83a6f128e}{printf}}(\textcolor{stringliteral}{"+ %d: %y\(\backslash\)n"}, i.index(), i.getValue());
\}
\end{DoxyCode}
 
\end{DoxyParagraph}


Implements \mbox{\hyperlink{class_qore_1_1_abstract_line_iterator_acde61f19ac0b96adcaafbe4962e9a335}{Qore\+::\+Abstract\+Line\+Iterator}}.

\mbox{\Hypertarget{class_qore_1_1_data_line_iterator_afa97a63c0d6f6ae2410ae3c7ae68696e}\label{class_qore_1_1_data_line_iterator_afa97a63c0d6f6ae2410ae3c7ae68696e}} 
\index{Qore\+::\+Data\+Line\+Iterator@{Qore\+::\+Data\+Line\+Iterator}!next@{next}}
\index{next@{next}!Qore\+::\+Data\+Line\+Iterator@{Qore\+::\+Data\+Line\+Iterator}}
\subsubsection{\texorpdfstring{next()}{next()}}
{\footnotesize\ttfamily bool Qore\+::\+Data\+Line\+Iterator\+::next (\begin{DoxyParamCaption}{ }\end{DoxyParamCaption})\hspace{0.3cm}{\ttfamily [virtual]}}



Moves the current position to the next line in the data; returns \mbox{\hyperlink{group__boolean__constants_ga9da2b9a8003cd3788e48305f8a00540f}{False}} if there are no more lines to read; if the iterator is not pointing at a valid element before this call, the iterator will be positioned to the beginning of the data. 

This method will return \mbox{\hyperlink{group__boolean__constants_ga3ba2df91713a6249449347131ea526c3}{True}} again after it returns \mbox{\hyperlink{group__boolean__constants_ga9da2b9a8003cd3788e48305f8a00540f}{False}} once if data is not empty, otherwise it will always return \mbox{\hyperlink{group__boolean__constants_ga9da2b9a8003cd3788e48305f8a00540f}{False}} The iterator object should not be used after this method returns \mbox{\hyperlink{group__boolean__constants_ga9da2b9a8003cd3788e48305f8a00540f}{False}}

\begin{DoxyReturn}{Returns}
\mbox{\hyperlink{group__boolean__constants_ga9da2b9a8003cd3788e48305f8a00540f}{False}} if there are no more lines in the data (in which case the iterator object is invalid and should not be used); \mbox{\hyperlink{group__boolean__constants_ga3ba2df91713a6249449347131ea526c3}{True}} if successful (meaning that the iterator object is valid)
\end{DoxyReturn}
\begin{DoxyParagraph}{Example\+:}

\begin{DoxyCode}
\textcolor{keywordflow}{while} (i.next()) \{
    \mbox{\hyperlink{group__string__functions_ga32070517a9f8a70a32ef48f83a6f128e}{printf}}(\textcolor{stringliteral}{"line: %y\(\backslash\)n"}, i.getValue());
\}
\end{DoxyCode}

\end{DoxyParagraph}

\begin{DoxyExceptions}{Exceptions}
{\em I\+T\+E\+R\+A\+T\+O\+R-\/\+T\+H\+R\+E\+A\+D-\/\+E\+R\+R\+OR} & this exception is thrown if this method is called from any thread other than the thread that created the object \\
\hline
\end{DoxyExceptions}


Implements \mbox{\hyperlink{class_qore_1_1_abstract_line_iterator_ac5f7742a325b335f3cd2ab0bb5f37272}{Qore\+::\+Abstract\+Line\+Iterator}}.

\mbox{\Hypertarget{class_qore_1_1_data_line_iterator_a5bcdb07579f2c7eb0629a822e22220bc}\label{class_qore_1_1_data_line_iterator_a5bcdb07579f2c7eb0629a822e22220bc}} 
\index{Qore\+::\+Data\+Line\+Iterator@{Qore\+::\+Data\+Line\+Iterator}!reset@{reset}}
\index{reset@{reset}!Qore\+::\+Data\+Line\+Iterator@{Qore\+::\+Data\+Line\+Iterator}}
\subsubsection{\texorpdfstring{reset()}{reset()}}
{\footnotesize\ttfamily Qore\+::\+Data\+Line\+Iterator\+::reset (\begin{DoxyParamCaption}{ }\end{DoxyParamCaption})}



Reset the iterator instance to its initial state. 

Reset the iterator instance to its initial state

\begin{DoxyParagraph}{Example}

\begin{DoxyCode}
i.reset();
\end{DoxyCode}

\end{DoxyParagraph}

\begin{DoxyExceptions}{Exceptions}
{\em I\+T\+E\+R\+A\+T\+O\+R-\/\+T\+H\+R\+E\+A\+D-\/\+E\+R\+R\+OR} & this exception is thrown if this method is called from any thread other than the thread that created the object \\
\hline
\end{DoxyExceptions}
\mbox{\Hypertarget{class_qore_1_1_data_line_iterator_af64f428889d1af031d68da288f2f9dbe}\label{class_qore_1_1_data_line_iterator_af64f428889d1af031d68da288f2f9dbe}} 
\index{Qore\+::\+Data\+Line\+Iterator@{Qore\+::\+Data\+Line\+Iterator}!valid@{valid}}
\index{valid@{valid}!Qore\+::\+Data\+Line\+Iterator@{Qore\+::\+Data\+Line\+Iterator}}
\subsubsection{\texorpdfstring{valid()}{valid()}}
{\footnotesize\ttfamily bool Qore\+::\+Data\+Line\+Iterator\+::valid (\begin{DoxyParamCaption}{ }\end{DoxyParamCaption})\hspace{0.3cm}{\ttfamily [virtual]}}



returns \mbox{\hyperlink{group__boolean__constants_ga3ba2df91713a6249449347131ea526c3}{True}} if the iterator is currently pointing at a valid element, \mbox{\hyperlink{group__boolean__constants_ga9da2b9a8003cd3788e48305f8a00540f}{False}} if not 

\begin{DoxyReturn}{Returns}
\mbox{\hyperlink{group__boolean__constants_ga3ba2df91713a6249449347131ea526c3}{True}} if the iterator is currently pointing at a valid element, \mbox{\hyperlink{group__boolean__constants_ga9da2b9a8003cd3788e48305f8a00540f}{False}} if not
\end{DoxyReturn}
\begin{DoxyParagraph}{Code Flags\+:}
\mbox{\hyperlink{code_flags_CONSTANT}{C\+O\+N\+S\+T\+A\+NT}}
\end{DoxyParagraph}
\begin{DoxyParagraph}{Example\+:}

\begin{DoxyCode}
\textcolor{keywordflow}{if} (i.valid())
    \mbox{\hyperlink{group__string__functions_ga32070517a9f8a70a32ef48f83a6f128e}{printf}}(\textcolor{stringliteral}{"current value: %y\(\backslash\)n"}, i.getValue());
\end{DoxyCode}
 
\end{DoxyParagraph}


Implements \mbox{\hyperlink{class_qore_1_1_abstract_line_iterator_a06fc51d01bfae9f17f290ac247ffd3f3}{Qore\+::\+Abstract\+Line\+Iterator}}.

