GF/src is now for 2.9, and the new sources are in src-3.0 - keep it this way until the release of GF 3

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-\batchmode
-%This Latex file is machine-generated by the BNF-converter
-
-\documentclass[a4paper,11pt]{article}
-\author{BNF-converter}
-\title{The Language Syntax}
-\setlength{\parindent}{0mm}
-\setlength{\parskip}{1mm}
-\begin{document}
-
-\maketitle
-
-\newcommand{\emptyP}{\mbox{$\epsilon$}}
-\newcommand{\terminal}[1]{\mbox{{\texttt {#1}}}}
-\newcommand{\nonterminal}[1]{\mbox{$\langle \mbox{{\sl #1 }} \! \rangle$}}
-\newcommand{\arrow}{\mbox{::=}}
-\newcommand{\delimit}{\mbox{$|$}}
-\newcommand{\reserved}[1]{\mbox{{\texttt {#1}}}}
-\newcommand{\literal}[1]{\mbox{{\texttt {#1}}}}
-\newcommand{\symb}[1]{\mbox{{\texttt {#1}}}}
-
-This document was automatically generated by the {\em BNF-Converter}. It was generated together with the lexer, the parser, and the abstract syntax module, which guarantees that the document matches with the implementation of the language (provided no hand-hacking has taken place).
-
-\section*{The lexical structure of Syntax}
-\subsection*{Identifiers}
-Identifiers \nonterminal{Ident} are unquoted strings beginning with a letter,
-followed by any combination of letters, digits, and the characters {\tt \_ '},
-reserved words excluded.
-
-
-\subsection*{Literals}
-String literals \nonterminal{String}\ have the form
-\terminal{"}$x$\terminal{"}, where $x$ is any sequence of any characters
-except \terminal{"}\ unless preceded by \verb6\6.
-
-
-Integer literals \nonterminal{Int}\ are nonempty sequences of digits.
-
-
-Double-precision float literals \nonterminal{Double}\ have the structure
-indicated by the regular expression $\nonterminal{digit}+ \mbox{{\it `.'}} \nonterminal{digit}+ (\mbox{{\it `e'}} \mbox{{\it `-'}}? \nonterminal{digit}+)?$ i.e.\
-two sequences of digits separated by a decimal point, optionally
-followed by an unsigned or negative exponent.
-
-
-
-
-\subsection*{Reserved words and symbols}
-The set of reserved words is the set of terminals appearing in the grammar. Those reserved words that consist of non-letter characters are called symbols, and they are treated in a different way from those that are similar to identifiers. The lexer follows rules familiar from languages like Haskell, C, and Java, including longest match and spacing conventions.
-
-The reserved words used in Syntax are the following: \\
-
-\begin{tabular}{lll}
-{\reserved{Type}} &{\reserved{case}} &{\reserved{data}} \\
-{\reserved{derive}} &{\reserved{do}} &{\reserved{else}} \\
-{\reserved{if}} &{\reserved{import}} &{\reserved{in}} \\
-{\reserved{let}} &{\reserved{of}} &{\reserved{rec}} \\
-{\reserved{sig}} &{\reserved{then}} &{\reserved{where}} \\
-\end{tabular}\\
-
-The symbols used in Syntax are the following: \\
-
-\begin{tabular}{lll}
-{\symb{;}} &{\symb{:}} &{\symb{\{}} \\
-{\symb{\}}} &{\symb{{$=$}}} &{\symb{{$|$}}} \\
-{\symb{{$|$}{$|$}}} &{\symb{::}} &{\symb{(}} \\
-{\symb{)}} &{\symb{[}} &{\symb{]}} \\
-{\symb{,}} &{\symb{\_}} &{\symb{{$-$}{$>$}}} \\
-{\symb{$\backslash$}} &{\symb{{$<$}{$-$}}} &{\symb{{$>$}{$>$}{$=$}}} \\
-{\symb{{$>$}{$>$}}} &{\symb{\&\&}} &{\symb{{$=$}{$=$}}} \\
-{\symb{/{$=$}}} &{\symb{{$<$}}} &{\symb{{$<$}{$=$}}} \\
-{\symb{{$>$}}} &{\symb{{$>$}{$=$}}} &{\symb{{$+$}}} \\
-{\symb{{$-$}}} &{\symb{*}} &{\symb{/}} \\
-{\symb{\%}} &{\symb{.}} &{\symb{?}} \\
-\end{tabular}\\
-
-\subsection*{Comments}
-Single-line comments begin with {\symb{{$-$}{$-$}}}. \\Multiple-line comments are  enclosed with {\symb{\{{$-$}}} and {\symb{{$-$}\}}}.
-
-\section*{The syntactic structure of Syntax}
-Non-terminals are enclosed between $\langle$ and $\rangle$. 
-The symbols  {\arrow}  (production),  {\delimit}  (union) 
-and {\emptyP} (empty rule) belong to the BNF notation. 
-All other symbols are terminals.\\
-
-\begin{tabular}{lll}
-{\nonterminal{Module}} & {\arrow}  &{\nonterminal{ListImport}} {\nonterminal{ListDecl}}  \\
-\end{tabular}\\
-
-\begin{tabular}{lll}
-{\nonterminal{Import}} & {\arrow}  &{\terminal{import}} {\nonterminal{Ident}}  \\
-\end{tabular}\\
-
-\begin{tabular}{lll}
-{\nonterminal{ListImport}} & {\arrow}  &{\emptyP} \\
- & {\delimit}  &{\nonterminal{Import}} {\terminal{;}} {\nonterminal{ListImport}}  \\
-\end{tabular}\\
-
-\begin{tabular}{lll}
-{\nonterminal{Decl}} & {\arrow}  &{\terminal{data}} {\nonterminal{Ident}} {\terminal{:}} {\nonterminal{Exp}} {\terminal{where}} {\terminal{\{}} {\nonterminal{ListConsDecl}} {\terminal{\}}}  \\
- & {\delimit}  &{\nonterminal{Ident}} {\terminal{:}} {\nonterminal{Exp}}  \\
- & {\delimit}  &{\nonterminal{Ident}} {\nonterminal{ListPattern}} {\nonterminal{Guard}} {\terminal{{$=$}}} {\nonterminal{Exp}}  \\
- & {\delimit}  &{\terminal{derive}} {\nonterminal{Ident}} {\nonterminal{Ident}}  \\
-\end{tabular}\\
-
-\begin{tabular}{lll}
-{\nonterminal{ListDecl}} & {\arrow}  &{\emptyP} \\
- & {\delimit}  &{\nonterminal{Decl}} {\terminal{;}} {\nonterminal{ListDecl}}  \\
-\end{tabular}\\
-
-\begin{tabular}{lll}
-{\nonterminal{ConsDecl}} & {\arrow}  &{\nonterminal{Ident}} {\terminal{:}} {\nonterminal{Exp}}  \\
-\end{tabular}\\
-
-\begin{tabular}{lll}
-{\nonterminal{ListConsDecl}} & {\arrow}  &{\emptyP} \\
- & {\delimit}  &{\nonterminal{ConsDecl}}  \\
- & {\delimit}  &{\nonterminal{ConsDecl}} {\terminal{;}} {\nonterminal{ListConsDecl}}  \\
-\end{tabular}\\
-
-\begin{tabular}{lll}
-{\nonterminal{Guard}} & {\arrow}  &{\terminal{{$|$}}} {\nonterminal{Exp1}}  \\
- & {\delimit}  &{\emptyP} \\
-\end{tabular}\\
-
-\begin{tabular}{lll}
-{\nonterminal{Pattern}} & {\arrow}  &{\nonterminal{Pattern1}} {\terminal{{$|$}{$|$}}} {\nonterminal{Pattern}}  \\
- & {\delimit}  &{\nonterminal{Pattern1}}  \\
-\end{tabular}\\
-
-\begin{tabular}{lll}
-{\nonterminal{Pattern1}} & {\arrow}  &{\nonterminal{Pattern2}} {\terminal{::}} {\nonterminal{Pattern1}}  \\
- & {\delimit}  &{\nonterminal{Pattern2}}  \\
-\end{tabular}\\
-
-\begin{tabular}{lll}
-{\nonterminal{Pattern2}} & {\arrow}  &{\nonterminal{Ident}} {\nonterminal{Pattern3}} {\nonterminal{ListPattern}}  \\
- & {\delimit}  &{\nonterminal{Pattern3}}  \\
-\end{tabular}\\
-
-\begin{tabular}{lll}
-{\nonterminal{Pattern3}} & {\arrow}  &{\terminal{rec}} {\terminal{\{}} {\nonterminal{ListFieldPattern}} {\terminal{\}}}  \\
- & {\delimit}  &{\terminal{[}} {\terminal{]}}  \\
- & {\delimit}  &{\terminal{[}} {\nonterminal{ListCommaPattern}} {\terminal{]}}  \\
- & {\delimit}  &{\terminal{(}} {\nonterminal{CommaPattern}} {\terminal{,}} {\nonterminal{ListCommaPattern}} {\terminal{)}}  \\
- & {\delimit}  &{\nonterminal{String}}  \\
- & {\delimit}  &{\nonterminal{Integer}}  \\
- & {\delimit}  &{\nonterminal{Ident}}  \\
- & {\delimit}  &{\terminal{\_}}  \\
- & {\delimit}  &{\terminal{(}} {\nonterminal{Pattern}} {\terminal{)}}  \\
-\end{tabular}\\
-
-\begin{tabular}{lll}
-{\nonterminal{CommaPattern}} & {\arrow}  &{\nonterminal{Pattern}}  \\
-\end{tabular}\\
-
-\begin{tabular}{lll}
-{\nonterminal{ListCommaPattern}} & {\arrow}  &{\nonterminal{CommaPattern}}  \\
- & {\delimit}  &{\nonterminal{CommaPattern}} {\terminal{,}} {\nonterminal{ListCommaPattern}}  \\
-\end{tabular}\\
-
-\begin{tabular}{lll}
-{\nonterminal{ListPattern}} & {\arrow}  &{\emptyP} \\
- & {\delimit}  &{\nonterminal{Pattern3}} {\nonterminal{ListPattern}}  \\
-\end{tabular}\\
-
-\begin{tabular}{lll}
-{\nonterminal{FieldPattern}} & {\arrow}  &{\nonterminal{Ident}} {\terminal{{$=$}}} {\nonterminal{Pattern}}  \\
-\end{tabular}\\
-
-\begin{tabular}{lll}
-{\nonterminal{ListFieldPattern}} & {\arrow}  &{\emptyP} \\
- & {\delimit}  &{\nonterminal{FieldPattern}}  \\
- & {\delimit}  &{\nonterminal{FieldPattern}} {\terminal{;}} {\nonterminal{ListFieldPattern}}  \\
-\end{tabular}\\
-
-\begin{tabular}{lll}
-{\nonterminal{Exp}} & {\arrow}  &{\terminal{(}} {\nonterminal{VarOrWild}} {\terminal{:}} {\nonterminal{Exp}} {\terminal{)}} {\terminal{{$-$}{$>$}}} {\nonterminal{Exp}}  \\
- & {\delimit}  &{\nonterminal{Exp1}} {\terminal{{$-$}{$>$}}} {\nonterminal{Exp}}  \\
- & {\delimit}  &{\nonterminal{Exp1}}  \\
-\end{tabular}\\
-
-\begin{tabular}{lll}
-{\nonterminal{VarOrWild}} & {\arrow}  &{\nonterminal{Ident}}  \\
- & {\delimit}  &{\terminal{\_}}  \\
-\end{tabular}\\
-
-\begin{tabular}{lll}
-{\nonterminal{Exp1}} & {\arrow}  &{\terminal{$\backslash$}} {\nonterminal{VarOrWild}} {\terminal{{$-$}{$>$}}} {\nonterminal{Exp1}}  \\
- & {\delimit}  &{\terminal{let}} {\terminal{\{}} {\nonterminal{ListLetDef}} {\terminal{\}}} {\terminal{in}} {\nonterminal{Exp1}}  \\
- & {\delimit}  &{\terminal{case}} {\nonterminal{Exp}} {\terminal{of}} {\terminal{\{}} {\nonterminal{ListCase}} {\terminal{\}}}  \\
- & {\delimit}  &{\terminal{if}} {\nonterminal{Exp}} {\terminal{then}} {\nonterminal{Exp}} {\terminal{else}} {\nonterminal{Exp1}}  \\
- & {\delimit}  &{\terminal{do}} {\terminal{\{}} {\nonterminal{ListBind}} {\nonterminal{Exp}} {\terminal{\}}}  \\
- & {\delimit}  &{\nonterminal{Exp2}}  \\
-\end{tabular}\\
-
-\begin{tabular}{lll}
-{\nonterminal{LetDef}} & {\arrow}  &{\nonterminal{Ident}} {\terminal{{$=$}}} {\nonterminal{Exp}}  \\
-\end{tabular}\\
-
-\begin{tabular}{lll}
-{\nonterminal{ListLetDef}} & {\arrow}  &{\emptyP} \\
- & {\delimit}  &{\nonterminal{LetDef}}  \\
- & {\delimit}  &{\nonterminal{LetDef}} {\terminal{;}} {\nonterminal{ListLetDef}}  \\
-\end{tabular}\\
-
-\begin{tabular}{lll}
-{\nonterminal{Case}} & {\arrow}  &{\nonterminal{Pattern}} {\nonterminal{Guard}} {\terminal{{$-$}{$>$}}} {\nonterminal{Exp}}  \\
-\end{tabular}\\
-
-\begin{tabular}{lll}
-{\nonterminal{ListCase}} & {\arrow}  &{\emptyP} \\
- & {\delimit}  &{\nonterminal{Case}}  \\
- & {\delimit}  &{\nonterminal{Case}} {\terminal{;}} {\nonterminal{ListCase}}  \\
-\end{tabular}\\
-
-\begin{tabular}{lll}
-{\nonterminal{Bind}} & {\arrow}  &{\nonterminal{VarOrWild}} {\terminal{{$<$}{$-$}}} {\nonterminal{Exp}}  \\
- & {\delimit}  &{\nonterminal{Exp}}  \\
-\end{tabular}\\
-
-\begin{tabular}{lll}
-{\nonterminal{ListBind}} & {\arrow}  &{\emptyP} \\
- & {\delimit}  &{\nonterminal{Bind}} {\terminal{;}} {\nonterminal{ListBind}}  \\
-\end{tabular}\\
-
-\begin{tabular}{lll}
-{\nonterminal{Exp3}} & {\arrow}  &{\nonterminal{Exp3}} {\terminal{{$>$}{$>$}{$=$}}} {\nonterminal{Exp4}}  \\
- & {\delimit}  &{\nonterminal{Exp3}} {\terminal{{$>$}{$>$}}} {\nonterminal{Exp4}}  \\
- & {\delimit}  &{\nonterminal{Exp4}}  \\
-\end{tabular}\\
-
-\begin{tabular}{lll}
-{\nonterminal{Exp4}} & {\arrow}  &{\nonterminal{Exp5}} {\terminal{{$|$}{$|$}}} {\nonterminal{Exp4}}  \\
- & {\delimit}  &{\nonterminal{Exp5}}  \\
-\end{tabular}\\
-
-\begin{tabular}{lll}
-{\nonterminal{Exp5}} & {\arrow}  &{\nonterminal{Exp6}} {\terminal{\&\&}} {\nonterminal{Exp5}}  \\
- & {\delimit}  &{\nonterminal{Exp6}}  \\
-\end{tabular}\\
-
-\begin{tabular}{lll}
-{\nonterminal{Exp6}} & {\arrow}  &{\nonterminal{Exp7}} {\terminal{{$=$}{$=$}}} {\nonterminal{Exp7}}  \\
- & {\delimit}  &{\nonterminal{Exp7}} {\terminal{/{$=$}}} {\nonterminal{Exp7}}  \\
- & {\delimit}  &{\nonterminal{Exp7}} {\terminal{{$<$}}} {\nonterminal{Exp7}}  \\
- & {\delimit}  &{\nonterminal{Exp7}} {\terminal{{$<$}{$=$}}} {\nonterminal{Exp7}}  \\
- & {\delimit}  &{\nonterminal{Exp7}} {\terminal{{$>$}}} {\nonterminal{Exp7}}  \\
- & {\delimit}  &{\nonterminal{Exp7}} {\terminal{{$>$}{$=$}}} {\nonterminal{Exp7}}  \\
- & {\delimit}  &{\nonterminal{Exp7}}  \\
-\end{tabular}\\
-
-\begin{tabular}{lll}
-{\nonterminal{Exp7}} & {\arrow}  &{\nonterminal{Exp8}} {\terminal{::}} {\nonterminal{Exp7}}  \\
- & {\delimit}  &{\nonterminal{Exp8}}  \\
-\end{tabular}\\
-
-\begin{tabular}{lll}
-{\nonterminal{Exp8}} & {\arrow}  &{\nonterminal{Exp8}} {\terminal{{$+$}}} {\nonterminal{Exp9}}  \\
- & {\delimit}  &{\nonterminal{Exp8}} {\terminal{{$-$}}} {\nonterminal{Exp9}}  \\
- & {\delimit}  &{\nonterminal{Exp9}}  \\
-\end{tabular}\\
-
-\begin{tabular}{lll}
-{\nonterminal{Exp9}} & {\arrow}  &{\nonterminal{Exp9}} {\terminal{*}} {\nonterminal{Exp10}}  \\
- & {\delimit}  &{\nonterminal{Exp9}} {\terminal{/}} {\nonterminal{Exp10}}  \\
- & {\delimit}  &{\nonterminal{Exp9}} {\terminal{\%}} {\nonterminal{Exp10}}  \\
- & {\delimit}  &{\nonterminal{Exp10}}  \\
-\end{tabular}\\
-
-\begin{tabular}{lll}
-{\nonterminal{Exp10}} & {\arrow}  &{\terminal{{$-$}}} {\nonterminal{Exp10}}  \\
- & {\delimit}  &{\nonterminal{Exp11}}  \\
-\end{tabular}\\
-
-\begin{tabular}{lll}
-{\nonterminal{Exp11}} & {\arrow}  &{\nonterminal{Exp11}} {\nonterminal{Exp12}}  \\
- & {\delimit}  &{\nonterminal{Exp12}}  \\
-\end{tabular}\\
-
-\begin{tabular}{lll}
-{\nonterminal{Exp12}} & {\arrow}  &{\nonterminal{Exp12}} {\terminal{.}} {\nonterminal{Ident}}  \\
- & {\delimit}  &{\nonterminal{Exp13}}  \\
-\end{tabular}\\
-
-\begin{tabular}{lll}
-{\nonterminal{Exp13}} & {\arrow}  &{\terminal{sig}} {\terminal{\{}} {\nonterminal{ListFieldType}} {\terminal{\}}}  \\
- & {\delimit}  &{\terminal{rec}} {\terminal{\{}} {\nonterminal{ListFieldValue}} {\terminal{\}}}  \\
- & {\delimit}  &{\terminal{[}} {\terminal{]}}  \\
- & {\delimit}  &{\terminal{[}} {\nonterminal{ListExp}} {\terminal{]}}  \\
- & {\delimit}  &{\terminal{(}} {\nonterminal{Exp}} {\terminal{,}} {\nonterminal{ListExp}} {\terminal{)}}  \\
- & {\delimit}  &{\nonterminal{Ident}}  \\
- & {\delimit}  &{\terminal{Type}}  \\
- & {\delimit}  &{\nonterminal{String}}  \\
- & {\delimit}  &{\nonterminal{Integer}}  \\
- & {\delimit}  &{\nonterminal{Double}}  \\
- & {\delimit}  &{\terminal{?}}  \\
- & {\delimit}  &{\terminal{(}} {\nonterminal{Exp}} {\terminal{)}}  \\
-\end{tabular}\\
-
-\begin{tabular}{lll}
-{\nonterminal{FieldType}} & {\arrow}  &{\nonterminal{Ident}} {\terminal{:}} {\nonterminal{Exp}}  \\
-\end{tabular}\\
-
-\begin{tabular}{lll}
-{\nonterminal{ListFieldType}} & {\arrow}  &{\emptyP} \\
- & {\delimit}  &{\nonterminal{FieldType}}  \\
- & {\delimit}  &{\nonterminal{FieldType}} {\terminal{;}} {\nonterminal{ListFieldType}}  \\
-\end{tabular}\\
-
-\begin{tabular}{lll}
-{\nonterminal{FieldValue}} & {\arrow}  &{\nonterminal{Ident}} {\terminal{{$=$}}} {\nonterminal{Exp}}  \\
-\end{tabular}\\
-
-\begin{tabular}{lll}
-{\nonterminal{ListFieldValue}} & {\arrow}  &{\emptyP} \\
- & {\delimit}  &{\nonterminal{FieldValue}}  \\
- & {\delimit}  &{\nonterminal{FieldValue}} {\terminal{;}} {\nonterminal{ListFieldValue}}  \\
-\end{tabular}\\
-
-\begin{tabular}{lll}
-{\nonterminal{Exp2}} & {\arrow}  &{\nonterminal{Exp3}}  \\
-\end{tabular}\\
-
-\begin{tabular}{lll}
-{\nonterminal{ListExp}} & {\arrow}  &{\nonterminal{Exp}}  \\
- & {\delimit}  &{\nonterminal{Exp}} {\terminal{,}} {\nonterminal{ListExp}}  \\
-\end{tabular}\\
-
-
-
-\end{document}
-