From f1f76dead78c3e9461bdb7e7b373058bfcb16af8 Mon Sep 17 00:00:00 2001
From: Doug Coleman <doug.coleman@gmail.com>
Date: Mon, 28 Apr 2014 08:41:31 +0000
Subject: [PATCH] alien.libraries.finder: Linux32 ldconfig has (libc6) or
 (libc6,x32) as the platform strings. Refactor parsing to not use regular
 expressions and change the matching from exact to requiring the ldconfig line
 to be a subset of the supported platforms.

---
 .../alien/libraries/finder/linux/linux.factor | 38 +++++++++++--------
 1 file changed, 22 insertions(+), 16 deletions(-)

diff --git a/basis/alien/libraries/finder/linux/linux.factor b/basis/alien/libraries/finder/linux/linux.factor
index f85946ffd9..6098deb782 100644
--- a/basis/alien/libraries/finder/linux/linux.factor
+++ b/basis/alien/libraries/finder/linux/linux.factor
@@ -1,32 +1,38 @@
-! Copyright (C) 2013 Björn Lindqvist
+! Copyright (C) 2013 Björn Lindqvist, Doug Coleman.
 ! See http://factorcode.org/license.txt for BSD license
-
-USING: alien.libraries alien.libraries.finder assocs
+USING: alien.libraries alien.libraries.finder arrays assocs
 combinators.short-circuit io io.encodings.utf8 io.files
-io.files.info io.launcher kernel sequences splitting system ;
-
+io.files.info io.launcher kernel sequences sets splitting system
+unicode.categories ;
 IN: alien.libraries.finder.linux
 
 <PRIVATE
 
 CONSTANT: mach-map {
-    { ppc.64 "libc6,64bit" }
-    { x86.32 "libc6,x86-32" }
-    { x86.64 "libc6,x86-64" }
+    { ppc.64 { "libc6" "64bit" } }
+    { x86.32 { "libc6" "x32" } }
+    { x86.64 { "libc6" "x86-64" } }
 }
 
-: ldconfig-cache ( -- seq )
-    "/sbin/ldconfig -p" utf8 [ lines ] with-process-reader rest
-    [ "=>" "" replace "\t " split harvest ] map ;
+: parse-ldconfig-lines ( string -- triple )
+    [
+        
+        "=>" split1 [ [ blank? ] trim ] bi@
+        [ " " split1 [ "()" in? ] trim "," split ] dip 3array
+    ] map ;
 
-: ldconfig-filter ( -- str )
-    mach-map cpu of "libc6" or "(" ")" surround ;
+: load-ldconfig-cache ( -- seq )
+    "/sbin/ldconfig -p" utf8 [ lines ] with-process-reader
+    rest parse-ldconfig-lines ;
 
-: ldconfig-matches? ( lib this-lib this-arch -- ? )
-    [ start 0 = ] [ ldconfig-filter = ] bi* and ;
+: ldconfig-arch ( -- str )
+    mach-map cpu of { "libc6" } or ;
+
+: ldconfig-matches? ( lib triple -- ? )
+    { [ first head? ] [ nip second ldconfig-arch subset? ] } 2&& ;
 
 : ldconfig-find-soname ( lib -- seq )
-    ldconfig-cache [ first2 ldconfig-matches? ] with filter [ third ] map ;
+    load-ldconfig-cache [ ldconfig-matches? ] with filter [ third ] map ;
 
 PRIVATE>