* Removed URIs from the evaluator (NIX-66). They are now just another

  kind of notation for strings.

10 files changed, 16 insertions, 21 deletions

diff --git a/doc/manual/writing-nix-expressions.xml b/doc/manual/writing-nix-expressions.xml
index e8d84164e..b8d097ae2 100644
--- a/doc/manual/writing-nix-expressions.xml
+++ b/doc/manual/writing-nix-expressions.xml
@@ -649,16 +649,20 @@ configureFlags = "
     some of which in turn contain expressions (e.g.,
     <literal>${mesa}</literal>).</para>
 
+    <para>As a convenience, <emphasis>URIs</emphasis> as defined in
+    appendix B of <link
+    xlink:href='http://www.ietf.org/rfc/rfc2396.txt'>RFC 2396</link>
+    can be written <emphasis>as is</emphasis>, without quotes.  For
+    instance, the string
+    <literal>"https://svn.cs.uu.nl:12443/dist/trace/trace-nix-trunk.tar.bz2"</literal>
+    can also be written as
+    <literal>https://svn.cs.uu.nl:12443/dist/trace/trace-nix-trunk.tar.bz2</literal>.</para>
+
   </listitem>
 
   <listitem><para><emphasis>Integers</emphasis>, e.g.,
   <literal>123</literal>.</para></listitem>
 
-  <listitem><para><emphasis>URIs</emphasis> as defined in appendix B
-  of <link xlink:href='http://www.ietf.org/rfc/rfc2396.txt'>RFC
-  2396</link>, e.g.,
-  <literal>https://svn.cs.uu.nl:12443/dist/trace/trace-nix-trunk.tar.bz2</literal>.</para></listitem>
-
   <listitem><para><emphasis>Paths</emphasis>, e.g.,
   <filename>/bin/sh</filename> or <filename>./builder.sh</filename>.
   A path must contain at least one slash to be recognised as such; for
diff --git a/src/libexpr/eval.cc b/src/libexpr/eval.cc
index 2d54f1fc2..4f97c761e 100644
--- a/src/libexpr/eval.cc
+++ b/src/libexpr/eval.cc
@@ -254,8 +254,7 @@ string coerceToStringWithContext(EvalState & state,
     }
     
     ATerm s;
-    if (matchStr(e, s) || matchUri(e, s))
-        return aterm2String(s);
+    if (matchStr(e, s)) return aterm2String(s);
     
     if (matchPath(e, s)) {
         isPath = true;
@@ -346,7 +345,6 @@ Expr evalExpr2(EvalState & state, Expr e)
     /* Normal forms. */
     if (sym == symStr ||
         sym == symPath ||
-        sym == symUri ||
         sym == symNull ||
         sym == symInt ||
         sym == symBool ||
diff --git a/src/libexpr/expr-to-xml.cc b/src/libexpr/expr-to-xml.cc
index 085488bb5..195cbd7b8 100644
--- a/src/libexpr/expr-to-xml.cc
+++ b/src/libexpr/expr-to-xml.cc
@@ -36,9 +36,6 @@ static void printTermAsXML(Expr e, XMLWriter & doc, ATermList & context)
     else if (matchPath(e, s))
         doc.writeEmptyElement("path", singletonAttrs("value", aterm2String(s)));
 
-    else if (matchUri(e, s))
-        doc.writeEmptyElement("uri", singletonAttrs("value", aterm2String(s)));
-
     else if (matchNull(e))
         doc.writeEmptyElement("null");
 
diff --git a/src/libexpr/nixexpr-ast.def b/src/libexpr/nixexpr-ast.def
index 4a92eaebf..b797fcfc4 100644
--- a/src/libexpr/nixexpr-ast.def
+++ b/src/libexpr/nixexpr-ast.def
@@ -26,7 +26,6 @@ Var | string | Expr |
 Int | int | Expr |
 Str | string | Expr |
 Path | string | Expr |
-Uri | string | Expr |
 List | ATermList | Expr |
 BlackHole | | Expr |
 Undefined | | Expr |
diff --git a/src/libexpr/nixexpr.cc b/src/libexpr/nixexpr.cc
index 582eecaf7..a36b45bc1 100644
--- a/src/libexpr/nixexpr.cc
+++ b/src/libexpr/nixexpr.cc
@@ -301,7 +301,6 @@ string showType(Expr e)
     int i1;
     if (matchStr(e, t1)) return "a string";
     if (matchPath(e, t1)) return "a path";
-    if (matchUri(e, t1)) return "a path";
     if (matchNull(e)) return "null";
     if (matchInt(e, i1)) return "an integer";
     if (matchBool(e, t1)) return "a boolean";
@@ -330,7 +329,6 @@ string showValue(Expr e)
         return "\"" + u + "\"";
     }
     if (matchPath(e, s)) return aterm2String(s);
-    if (matchUri(e, s)) return aterm2String(s);
     if (matchNull(e)) return "null";
     if (matchInt(e, i)) return (format("%1%") % i).str();
     if (e == eTrue) return "true";
diff --git a/src/libexpr/parser.y b/src/libexpr/parser.y
index f5c3435e5..d13a1a133 100644
--- a/src/libexpr/parser.y
+++ b/src/libexpr/parser.y
@@ -3,7 +3,7 @@
 %locations
 %error-verbose
 %defines
-%no-lines
+/* %no-lines */
 %parse-param { yyscan_t scanner }
 %parse-param { ParseData * data }
 %lex-param { yyscan_t scanner }
@@ -200,7 +200,7 @@ expr_simple
       else $$ = makeConcatStrings(ATreverse($2));
   }
   | PATH { $$ = makePath(toATerm(absPath(aterm2String($1), data->basePath))); }
-  | URI { $$ = makeUri($1); }
+  | URI { $$ = makeStr($1); }
   | '(' expr ')' { $$ = $2; }
   /* Let expressions `let {..., body = ...}' are just desugared
      into `(rec {..., body = ...}).body'. */
diff --git a/src/libexpr/primops.cc b/src/libexpr/primops.cc
index 761677a70..f35ba737d 100644
--- a/src/libexpr/primops.cc
+++ b/src/libexpr/primops.cc
@@ -137,7 +137,6 @@ void toString(EvalState & state, Expr e,
        scripting convenience, just like `null'. */
     
     if (matchStr(e, s)) result += aterm2String(s);
-    else if (matchUri(e, s)) result += aterm2String(s);
     else if (e == eTrue) result += "1";
     else if (e == eFalse) ; 
     else if (matchInt(e, n)) result += int2String(n);
@@ -482,7 +481,7 @@ static Expr primDirOf(EvalState & state, const ATermVector & args)
 ATerm coerceToString(Expr e)
 {
     ATerm s;
-    if (matchStr(e, s) || matchPath(e, s) || matchUri(e, s))
+    if (matchStr(e, s) || matchPath(e, s))
         return s;
     return 0;
 }
diff --git a/tests/lang/parse-okay-regression-20041027.exp b/tests/lang/parse-okay-regression-20041027.exp
index 38d72aa88..8bdefdef2 100644
--- a/tests/lang/parse-okay-regression-20041027.exp
+++ b/tests/lang/parse-okay-regression-20041027.exp
@@ -1 +1 @@
-Function([Formal("stdenv",UnrestrictedValues,NoDefaultValue),Formal("fetchurl",UnrestrictedValues,NoDefaultValue)],Call(Select(Var("stdenv"),"mkDerivation"),Attrs([Bind("name",Str("libXi-6.0.1"),Pos("(string)",4,7)),Bind("src",Call(Var("fetchurl"),Attrs([Bind("url",Uri("http://freedesktop.org/~xlibs/release/libXi-6.0.1.tar.bz2"),Pos("(string)",6,8)),Bind("md5",Str("7e935a42428d63a387b3c048be0f2756"),Pos("(string)",7,8))])),Pos("(string)",5,6))])),Pos("(string)",1,2))
+Function([Formal("stdenv",UnrestrictedValues,NoDefaultValue),Formal("fetchurl",UnrestrictedValues,NoDefaultValue)],Call(Select(Var("stdenv"),"mkDerivation"),Attrs([Bind("name",Str("libXi-6.0.1"),Pos("(string)",4,7)),Bind("src",Call(Var("fetchurl"),Attrs([Bind("url",Str("http://freedesktop.org/~xlibs/release/libXi-6.0.1.tar.bz2"),Pos("(string)",6,8)),Bind("md5",Str("7e935a42428d63a387b3c048be0f2756"),Pos("(string)",7,8))])),Pos("(string)",5,6))])),Pos("(string)",1,2))
diff --git a/tests/lang/parse-okay-subversion.exp b/tests/lang/parse-okay-subversion.exp
index 552b43259..5e6fb6e0b 100644
--- a/tests/lang/parse-okay-subversion.exp
+++ b/tests/lang/parse-okay-subversion.exp
@@ -1 +1 @@
-Function([Formal("localServer",UnrestrictedValues,DefaultValue(Var("false"))),Formal("httpServer",UnrestrictedValues,DefaultValue(Var("false"))),Formal("sslSupport",UnrestrictedValues,DefaultValue(Var("false"))),Formal("pythonBindings",UnrestrictedValues,DefaultValue(Var("false"))),Formal("javaSwigBindings",UnrestrictedValues,DefaultValue(Var("false"))),Formal("javahlBindings",UnrestrictedValues,DefaultValue(Var("false"))),Formal("stdenv",UnrestrictedValues,NoDefaultValue),Formal("fetchurl",UnrestrictedValues,NoDefaultValue),Formal("openssl",UnrestrictedValues,DefaultValue(Var("null"))),Formal("httpd",UnrestrictedValues,DefaultValue(Var("null"))),Formal("db4",UnrestrictedValues,DefaultValue(Var("null"))),Formal("expat",UnrestrictedValues,NoDefaultValue),Formal("swig",UnrestrictedValues,DefaultValue(Var("null"))),Formal("j2sdk",UnrestrictedValues,DefaultValue(Var("null")))],Assert(OpNEq(Var("expat"),Var("null")),Assert(OpImpl(Var("localServer"),OpNEq(Var("db4"),Var("null"))),Assert(OpImpl(Var("httpServer"),OpAnd(OpNEq(Var("httpd"),Var("null")),OpEq(Select(Var("httpd"),"expat"),Var("expat")))),Assert(OpImpl(Var("sslSupport"),OpAnd(OpNEq(Var("openssl"),Var("null")),OpImpl(Var("httpServer"),OpEq(Select(Var("httpd"),"openssl"),Var("openssl"))))),Assert(OpImpl(Var("pythonBindings"),OpAnd(OpNEq(Var("swig"),Var("null")),Select(Var("swig"),"pythonSupport"))),Assert(OpImpl(Var("javaSwigBindings"),OpAnd(OpNEq(Var("swig"),Var("null")),Select(Var("swig"),"javaSupport"))),Assert(OpImpl(Var("javahlBindings"),OpNEq(Var("j2sdk"),Var("null"))),Call(Select(Var("stdenv"),"mkDerivation"),Attrs([Bind("name",Str("subversion-1.1.1"),Pos("(string)",20,7)),Bind("builder",Path("/foo/bar"),Pos("(string)",22,10)),Bind("src",Call(Var("fetchurl"),Attrs([Bind("url",Uri("http://subversion.tigris.org/tarballs/subversion-1.1.1.tar.bz2"),Pos("(string)",24,8)),Bind("md5",Str("a180c3fe91680389c210c99def54d9e0"),Pos("(string)",25,8))])),Pos("(string)",23,6)),Bind("patches",If(Var("javahlBindings"),List([Path("/javahl.patch")]),List([])),Pos("(string)",31,10)),Bind("openssl",If(Var("sslSupport"),Var("openssl"),Var("null")),Pos("(string)",33,10)),Bind("httpd",If(Var("httpServer"),Var("httpd"),Var("null")),Pos("(string)",34,8)),Bind("db4",If(Var("localServer"),Var("db4"),Var("null")),Pos("(string)",35,6)),Bind("swig",If(OpOr(Var("pythonBindings"),Var("javaSwigBindings")),Var("swig"),Var("null")),Pos("(string)",36,7)),Bind("python",If(Var("pythonBindings"),Select(Var("swig"),"python"),Var("null")),Pos("(string)",37,9)),Bind("j2sdk",If(Var("javaSwigBindings"),Select(Var("swig"),"j2sdk"),If(Var("javahlBindings"),Var("j2sdk"),Var("null"))),Pos("(string)",38,8)),Bind("expat",Var("expat"),Pos("(string)",41,10)),Bind("localServer",Var("localServer"),Pos("(string)",41,10)),Bind("httpServer",Var("httpServer"),Pos("(string)",41,10)),Bind("sslSupport",Var("sslSupport"),Pos("(string)",41,10)),Bind("pythonBindings",Var("pythonBindings"),Pos("(string)",41,10)),Bind("javaSwigBindings",Var("javaSwigBindings"),Pos("(string)",41,10)),Bind("javahlBindings",Var("javahlBindings"),Pos("(string)",41,10))])),Pos("(string)",17,7)),Pos("(string)",16,7)),Pos("(string)",15,7)),Pos("(string)",14,7)),Pos("(string)",13,7)),Pos("(string)",12,7)),Pos("(string)",11,7)),Pos("(string)",1,2))
+Function([Formal("localServer",UnrestrictedValues,DefaultValue(Var("false"))),Formal("httpServer",UnrestrictedValues,DefaultValue(Var("false"))),Formal("sslSupport",UnrestrictedValues,DefaultValue(Var("false"))),Formal("pythonBindings",UnrestrictedValues,DefaultValue(Var("false"))),Formal("javaSwigBindings",UnrestrictedValues,DefaultValue(Var("false"))),Formal("javahlBindings",UnrestrictedValues,DefaultValue(Var("false"))),Formal("stdenv",UnrestrictedValues,NoDefaultValue),Formal("fetchurl",UnrestrictedValues,NoDefaultValue),Formal("openssl",UnrestrictedValues,DefaultValue(Var("null"))),Formal("httpd",UnrestrictedValues,DefaultValue(Var("null"))),Formal("db4",UnrestrictedValues,DefaultValue(Var("null"))),Formal("expat",UnrestrictedValues,NoDefaultValue),Formal("swig",UnrestrictedValues,DefaultValue(Var("null"))),Formal("j2sdk",UnrestrictedValues,DefaultValue(Var("null")))],Assert(OpNEq(Var("expat"),Var("null")),Assert(OpImpl(Var("localServer"),OpNEq(Var("db4"),Var("null"))),Assert(OpImpl(Var("httpServer"),OpAnd(OpNEq(Var("httpd"),Var("null")),OpEq(Select(Var("httpd"),"expat"),Var("expat")))),Assert(OpImpl(Var("sslSupport"),OpAnd(OpNEq(Var("openssl"),Var("null")),OpImpl(Var("httpServer"),OpEq(Select(Var("httpd"),"openssl"),Var("openssl"))))),Assert(OpImpl(Var("pythonBindings"),OpAnd(OpNEq(Var("swig"),Var("null")),Select(Var("swig"),"pythonSupport"))),Assert(OpImpl(Var("javaSwigBindings"),OpAnd(OpNEq(Var("swig"),Var("null")),Select(Var("swig"),"javaSupport"))),Assert(OpImpl(Var("javahlBindings"),OpNEq(Var("j2sdk"),Var("null"))),Call(Select(Var("stdenv"),"mkDerivation"),Attrs([Bind("name",Str("subversion-1.1.1"),Pos("(string)",20,7)),Bind("builder",Path("/foo/bar"),Pos("(string)",22,10)),Bind("src",Call(Var("fetchurl"),Attrs([Bind("url",Str("http://subversion.tigris.org/tarballs/subversion-1.1.1.tar.bz2"),Pos("(string)",24,8)),Bind("md5",Str("a180c3fe91680389c210c99def54d9e0"),Pos("(string)",25,8))])),Pos("(string)",23,6)),Bind("patches",If(Var("javahlBindings"),List([Path("/javahl.patch")]),List([])),Pos("(string)",31,10)),Bind("openssl",If(Var("sslSupport"),Var("openssl"),Var("null")),Pos("(string)",33,10)),Bind("httpd",If(Var("httpServer"),Var("httpd"),Var("null")),Pos("(string)",34,8)),Bind("db4",If(Var("localServer"),Var("db4"),Var("null")),Pos("(string)",35,6)),Bind("swig",If(OpOr(Var("pythonBindings"),Var("javaSwigBindings")),Var("swig"),Var("null")),Pos("(string)",36,7)),Bind("python",If(Var("pythonBindings"),Select(Var("swig"),"python"),Var("null")),Pos("(string)",37,9)),Bind("j2sdk",If(Var("javaSwigBindings"),Select(Var("swig"),"j2sdk"),If(Var("javahlBindings"),Var("j2sdk"),Var("null"))),Pos("(string)",38,8)),Bind("expat",Var("expat"),Pos("(string)",41,10)),Bind("localServer",Var("localServer"),Pos("(string)",41,10)),Bind("httpServer",Var("httpServer"),Pos("(string)",41,10)),Bind("sslSupport",Var("sslSupport"),Pos("(string)",41,10)),Bind("pythonBindings",Var("pythonBindings"),Pos("(string)",41,10)),Bind("javaSwigBindings",Var("javaSwigBindings"),Pos("(string)",41,10)),Bind("javahlBindings",Var("javahlBindings"),Pos("(string)",41,10))])),Pos("(string)",17,7)),Pos("(string)",16,7)),Pos("(string)",15,7)),Pos("(string)",14,7)),Pos("(string)",13,7)),Pos("(string)",12,7)),Pos("(string)",11,7)),Pos("(string)",1,2))
diff --git a/tests/lang/parse-okay-url.exp b/tests/lang/parse-okay-url.exp
index fa6706e21..801f14983 100644
--- a/tests/lang/parse-okay-url.exp
+++ b/tests/lang/parse-okay-url.exp
@@ -1 +1 @@
-List([Uri("x:x"),Uri("https://svn.cs.uu.nl:12443/repos/trace/trunk"),Uri("http://www2.mplayerhq.hu/MPlayer/releases/fonts/font-arial-iso-8859-1.tar.bz2"),Uri("http://losser.st-lab.cs.uu.nl/~armijn/.nix/gcc-3.3.4-static-nix.tar.gz"),Uri("http://fpdownload.macromedia.com/get/shockwave/flash/english/linux/7.0r25/install_flash_player_7_linux.tar.gz"),Uri("ftp://ftp.gtk.org/pub/gtk/v1.2/gtk+-1.2.10.tar.gz")])
+List([Str("x:x"),Str("https://svn.cs.uu.nl:12443/repos/trace/trunk"),Str("http://www2.mplayerhq.hu/MPlayer/releases/fonts/font-arial-iso-8859-1.tar.bz2"),Str("http://losser.st-lab.cs.uu.nl/~armijn/.nix/gcc-3.3.4-static-nix.tar.gz"),Str("http://fpdownload.macromedia.com/get/shockwave/flash/english/linux/7.0r25/install_flash_player_7_linux.tar.gz"),Str("ftp://ftp.gtk.org/pub/gtk/v1.2/gtk+-1.2.10.tar.gz")])