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authorPatrick Simianer <simianer@cl.uni-heidelberg.de>2012-05-13 03:35:30 +0200
committerPatrick Simianer <simianer@cl.uni-heidelberg.de>2012-05-13 03:35:30 +0200
commit670a8f984fc6d8342180c59ae9e96b0b76f34d3d (patch)
tree9f2ce7eec1a77e56b3bb1ad0ad40f212d7a996b0 /jam-files/boost-build/tools/whale.jam
parenteb3ee28dc0eb1d3e5ed01ba0df843be329ae450d (diff)
parent2f64af3e06a518b93f7ca2c30a9d0aeb2c947031 (diff)
Merge remote-tracking branch 'upstream/master'
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+# Copyright (C) Vladimir Prus 2002-2005.
+
+# Use, modification and distribution is subject to the Boost Software
+# License Version 1.0. (See accompanying file LICENSE_1_0.txt or
+# http://www.boost.org/LICENSE_1_0.txt)
+
+# This module implements support for Whale/Dolphin/WD parser/lexer tools.
+# See http://www.cs.queensu.ca/home/okhotin/whale/ for details.
+#
+# There are three interesting target types:
+# - WHL (the parser sources), that are converted to CPP and H
+# - DLP (the lexer sources), that are converted to CPP and H
+# - WD (combined parser/lexer sources), that are converted to WHL + DLP
+
+import type ;
+import generators ;
+import path ;
+import "class" : new ;
+import errors ;
+
+rule init ( path # path the Whale/Dolphin/WD binaries
+ )
+{
+ if $(.configured) && $(.path) != $(path)
+ {
+ errors.user-error "Attempt to reconfigure Whale support" :
+ "Previously configured with path \"$(.path:E=<empty>)\"" :
+ "Now configuring with path \"$(path:E=<empty>)\"" ;
+
+ }
+ .configured = true ;
+ .path = $(path) ;
+
+ .whale = [ path.join $(path) whale ] ;
+ .dolphin = [ path.join $(path) dolphin ] ;
+ .wd = [ path.join $(path) wd ] ;
+}
+
+
+# Declare the types.
+type.register WHL : whl ;
+type.register DLP : dlp ;
+type.register WHL_LR0 : lr0 ;
+type.register WD : wd ;
+
+# Declare standard generators.
+generators.register-standard whale.whale : WHL : CPP H H(%_symbols) ;
+generators.register-standard whale.dolphin : DLP : CPP H ;
+generators.register-standard whale.wd : WD : WHL(%_parser) DLP(%_lexer) ;
+
+# The conversions defines above a ambiguious when we generated CPP from WD.
+# We can either go via WHL type, or via DLP type.
+# The following custom generator handles this by running both conversions.
+
+class wd-to-cpp : generator
+{
+ rule __init__ ( * : * : * )
+ {
+ generator.__init__ $(1) : $(2) : $(3) ;
+ }
+
+ rule run ( project name ? : property-set : source * )
+ {
+ if ! $(source[2])
+ {
+ local new-sources ;
+ if ! [ $(source).type ] in WHL DLP
+ {
+ local r1 = [ generators.construct $(project) $(name)
+ : WHL : $(property-set) : $(source) ] ;
+ local r2 = [ generators.construct $(project) $(name)
+ : DLP : $(property-set) : $(source) ] ;
+
+ new-sources = [ sequence.unique $(r1[2-]) $(r2[2-]) ] ;
+ }
+ else
+ {
+ new-sources = $(source) ;
+ }
+
+ local result ;
+ for local i in $(new-sources)
+ {
+ local t = [ generators.construct $(project) $(name) : CPP
+ : $(property-set) : $(i) ] ;
+ result += $(t[2-]) ;
+ }
+ return $(result) ;
+ }
+ }
+
+}
+
+
+generators.override whale.wd-to-cpp : whale.whale ;
+generators.override whale.wd-to-cpp : whale.dolphin ;
+
+
+generators.register [ new wd-to-cpp whale.wd-to-cpp : : CPP ] ;
+
+
+actions whale
+{
+ $(.whale) -d $(<[1]:D) $(>)
+}
+
+actions dolphin
+{
+ $(.dolphin) -d $(<[1]:D) $(>)
+}
+
+actions wd
+{
+ $(.wd) -d $(<[1]:D) -g $(>)
+}
+