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* EBNF grammar for the Nix expression language.

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This commit is contained in:
Eelco Dolstra 2004-04-08 13:31:57 +00:00
parent 153429520a
commit b0c9baf1b5
4 changed files with 198 additions and 4 deletions
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5
configure.ac
View file

@ -64,6 +64,11 @@ AC_ARG_WITH(docbook-catalog, AC_HELP_STRING([--with-docbook-catalog=PATH],
docbookcatalog=$withval, docbookcatalog=/docbook-dtd-missing)
AC_SUBST(docbookcatalog)
AC_ARG_WITH(docbook-ebnf-catalog, AC_HELP_STRING([--with-docbook-ebnf-catalog=PATH],
[path of the DocBook XML EBNF module DTD]),
docbookebnfcatalog=$withval, docbookcatalog=/docbook-ebnf-dtd-missing)
AC_SUBST(docbookebnfcatalog)
AC_ARG_WITH(docbook-xsl, AC_HELP_STRING([--with-docbook-xsl=PATH],
[path of the DocBook XSL stylesheets]),
docbookxsl=$withval, docbookxsl=/docbook-xsl-missing)

4
doc/manual/Makefile.am
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@ -1,4 +1,4 @@
ENV = SGML_CATALOG_FILES=$(docbookcatalog)
ENV = SGML_CATALOG_FILES=$(docbookcatalog):$(docbookebnfcatalog)
XMLLINT = $(ENV) $(xmllint) $(xmlflags) --catalogs
XSLTPROC = $(ENV) $(xsltproc) $(xmlflags) --catalogs \
@ -13,7 +13,7 @@ man1_MANS = nix-env.1 nix-store.1 nix-instantiate.1 \
SOURCES = manual.xml introduction.xml installation.xml overview.xml \
$(man1_MANS:.1=.xml) \
troubleshooting.xml bugs.xml opt-common.xml opt-common-syn.xml \
quick-start.xml style.css images
quick-start.xml nix-lang-ref.xml style.css images
manual.is-valid: $(SOURCES) version.xml
$(XMLLINT) --noout --valid manual.xml

10
doc/manual/manual.xml
View file

@ -1,8 +1,11 @@
<?xml version="1.0"?>
<!DOCTYPE book
PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
PUBLIC "-//OASIS//DTD DocBook EBNF Module V1.0//EN"
"http://www.oasis-open.org/docbook/xml/ebnf/1.0/dbebnf.dtd"
[
<!-- <!DOCTYPE book
PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN"
"http://www.docbook.org/xml/4.3/docbook-xml-4.3.zip" -->
<!ENTITY introduction SYSTEM "introduction.xml">
<!ENTITY quick-start SYSTEM "quick-start.xml">
<!ENTITY installation SYSTEM "installation.xml">
@ -16,6 +19,7 @@
<!ENTITY nix-push SYSTEM "nix-push.xml">
<!ENTITY nix-pull SYSTEM "nix-pull.xml">
<!ENTITY nix-prefetch-url SYSTEM "nix-prefetch-url.xml">
<!ENTITY nix-lang-ref SYSTEM "nix-lang-ref.xml">
<!ENTITY troubleshooting SYSTEM "troubleshooting.xml">
<!ENTITY bugs SYSTEM "bugs.xml">
<!ENTITY version SYSTEM "version.xml">
@ -74,6 +78,8 @@
</sect1>
</appendix>
&nix-lang-ref;
&troubleshooting;
&bugs;

183
doc/manual/nix-lang-ref.xml Normal file
View file

@ -0,0 +1,183 @@
<chapter>
<title>Nix Language Reference</title>
<sect1>
<title>Grammar</title>
<para>
</para>
<productionset>
<title>Expressions</title>
<production id="nix.expr">
<lhs>Expr</lhs>
<rhs>
<nonterminal def="#nix.expr_function" />
</rhs>
</production>
<production id="nix.expr_function">
<lhs>ExprFunction</lhs>
<rhs>
'{' <nonterminal def="#nix.formals" /> '}' ':' <nonterminal def="#nix.expr_function" />
<sbr />|
<nonterminal def="#nix.expr_assert" />
</rhs>
</production>
<production id="nix.expr_assert">
<lhs>ExprAssert</lhs>
<rhs>
'assert' <nonterminal def="#nix.expr" /> ';' <nonterminal def="#nix.expr_assert" />
<sbr />|
<nonterminal def="#nix.expr_if" />
</rhs>
</production>
<production id="nix.expr_if">
<lhs>ExprIf</lhs>
<rhs>
'if' <nonterminal def="#nix.expr" /> 'then' <nonterminal def="#nix.expr" />
'else' <nonterminal def="#nix.expr" />
<sbr />|
<nonterminal def="#nix.expr_op" />
</rhs>
</production>
<production id="nix.expr_op">
<lhs>ExprOp</lhs>
<rhs>
'!' <nonterminal def="#nix.expr_op" />
<sbr />|
<nonterminal def="#nix.expr_op" /> '==' <nonterminal def="#nix.expr_op" />
<sbr />|
<nonterminal def="#nix.expr_op" /> '!=' <nonterminal def="#nix.expr_op" />
<sbr />|
<nonterminal def="#nix.expr_op" /> '&amp;&amp;' <nonterminal def="#nix.expr_op" />
<sbr />|
<nonterminal def="#nix.expr_op" /> '||' <nonterminal def="#nix.expr_op" />
<sbr />|
<nonterminal def="#nix.expr_op" /> '->' <nonterminal def="#nix.expr_op" />
<sbr />|
<nonterminal def="#nix.expr_op" /> '//' <nonterminal def="#nix.expr_op" />
<sbr />|
<nonterminal def="#nix.expr_op" /> '~' <nonterminal def="#nix.expr_op" />
<sbr />|
<nonterminal def="#nix.expr_op" /> '?' <nonterminal def="#nix.id" />
<sbr />|
<nonterminal def="#nix.expr_app" />
</rhs>
</production>
<production id="nix.expr_app">
<lhs>ExprApp</lhs>
<rhs>
<nonterminal def="#nix.expr_app" /> '.' <nonterminal def="#nix.expr_select" />
<sbr />|
<nonterminal def="#nix.expr_select" />
</rhs>
</production>
<production id="nix.expr_select">
<lhs>ExprSelect</lhs>
<rhs>
<nonterminal def="#nix.expr_select" /> <nonterminal def="#nix.id" />
<sbr />|
<nonterminal def="#nix.expr_simple" />
</rhs>
</production>
<production id="nix.expr_simple">
<lhs>ExprSimple</lhs>
<rhs>
<nonterminal def="#nix.id" /> |
<nonterminal def="#nix.int" /> |
<nonterminal def="#nix.str" /> |
<nonterminal def="#nix.path" /> |
<nonterminal def="#nix.uri" />
<sbr />|
'(' <nonterminal def="#nix.expr" /> ')'
<sbr />|
'{' <nonterminal def="#nix.bind" />* '}'
<sbr />|
'let' '{' <nonterminal def="#nix.bind" />* '}'
<sbr />|
'rec' '{' <nonterminal def="#nix.bind" />* '}'
<sbr />|
'[' <nonterminal def="#nix.expr_select" />* ']'
</rhs>
</production>
<production id="nix.bind">
<lhs>Bind</lhs>
<rhs>
<nonterminal def="#nix.id" /> '=' <nonterminal def="#nix.expr" /> ';'
<sbr />|
'inherit' ('(' <nonterminal def="#nix.expr" /> ')')? <nonterminal def="#nix.id" />* ';'
</rhs>
</production>
<production id="nix.formals">
<lhs>Formals</lhs>
<rhs>
<nonterminal def="#nix.formal" /> ',' <nonterminal def="#nix.formals" />
| <nonterminal def="#nix.formal" />
</rhs>
</production>
<production id="nix.formal">
<lhs>Formal</lhs>
<rhs>
<nonterminal def="#nix.id" />
<sbr />|
<nonterminal def="#nix.id" /> '?' <nonterminal def="#nix.expr" />
</rhs>
</production>
</productionset>
<productionset>
<title>Terminals</title>
<production id="nix.id">
<lhs>Id</lhs>
<rhs>[a-zA-Z\_][a-zA-Z0-9\_\']*</rhs>
</production>
<production id="nix.int">
<lhs>Int</lhs>
<rhs>[0-9]+</rhs>
</production>
<production id="nix.str">
<lhs>Str</lhs>
<rhs>\"[^\n\"]*\"</rhs>
</production>
<production id="nix.path">
<lhs>Path</lhs>
<rhs>[a-zA-Z0-9\.\_\-\+]*(\/[a-zA-Z0-9\.\_\-\+]+)+</rhs>
</production>
<production id="nix.uri">
<lhs>Uri</lhs>
<rhs>[a-zA-Z][a-zA-Z0-9\+\-\.]*\:[a-zA-Z0-9\%\/\?\:\@\&amp;\=\+\$\,\-\_\.\!\~\*\']+</rhs>
</production>
<production id="nix.ws">
<lhs>Whitespace</lhs>
<rhs>
[ \t\n]+
<sbr />|
\#[^\n]*
<sbr />|
\/\*(.|\n)*\*\/
</rhs>
</production>
</productionset>
</sect1>
</chapter>