parallel: Fixed {= {= =} =}, {= =}=}, {={= =}

doc/release_new_version

@@ -226,34 +226,21 @@ cc:Tim Cuthbertson <tim3d.junk@gmail.com>,
    Ryoichiro Suzuki <ryoichiro.suzuki@gmail.com>,
    Jesse Alama <jesse.alama@gmail.com>
 
-Subject: GNU Parallel 20141122 ('Rosetta') released
+Subject: GNU Parallel 20141222 ('Manila') released
 
-GNU Parallel 20141122 ('Rosetta') has been released. It is available for download at: http://ftp.gnu.org/gnu/parallel/
+GNU Parallel 20141222 ('Manila') has been released. It is available for download at: http://ftp.gnu.org/gnu/parallel/
 
 Haiku of the month:
 
-Hadoop bit too much?
+<<>>
-Want a simpler syntax now?
-Use GNU Parallel.
-  -- Ole Tange
-
-A central piece of command generation was rewritten making this release beta quality. As always it passes the testsuite, so most functionality clearly works.
 
 New in this release:
 
-* Remote systems can be divided into hostgroups (e.g. web and db) by prepending '@groupname/' to the sshlogin. Multiple groups can be given by separating groups with '+'. E.g. @web/www1 @web+db/www2 @db/mariadb
+* GNU Parallel was cited in: Parallel post-processing with MPI-Bash http://dl.acm.org/citation.cfm?id=2691137
 
-* Remote execution can be restricted to servers that are part of one or more groups by '@groupname' as an sshlogin. Multiple groups can be given by separating groups with '+'. E.g. -S @web or -S @db+web
+* GNU Parallel: Open Source For You (OSFY) magazine, October 2013 edition http://www.shakthimaan.com/posts/2014/11/27/gnu-parallel/news.html
 
-* With --hostgroup you can restrict arguments to certain hostgroups by appending '@groupname' to the argument.  Multiple groups can be given by separating groups with '+'. E.g. my_web_arg@web db-or-web-arg@db+web db-only-arg@db Thanks to Michel Courtine for developing a prototype for this.
+* コマンドを並列に実行するGNU parallelがとても便利 http://bicycle1885.hatenablog.com/entry/2014/08/10/143612
-
-* GNU Parallel was cited in: HTSeq-Hadoop: Extending HTSeq for Massively Parallel Sequencing Data Analysis using Hadoop http://essenceofescience.se/wp-content/uploads/2014/11/Siretskiy.pdf
-
-* GNU Parallel was cited in: SlideToolkit: An Assistive Toolset for the Histological Quantification of Whole Slide Images http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0110289#close
-
-* GNU Parallel was cited in: Exploring a multiprocessor design space to analyze the impact of using STT-RAM in the memory hierarchy http://conservancy.umn.edu/bitstream/handle/11299/167286/Borse_umn_0130M_15431.pdf
-
-* Command-Line OCR with Tesseract on Mac OS X https://ryanfb.github.io/etc/2014/11/13/command_line_ocr_on_mac_os_x.html
 
 * Bug fixes and man page updates.
 

src/Makefile.in

@@ -78,7 +78,7 @@ NORMAL_UNINSTALL = :
 PRE_UNINSTALL = :
 POST_UNINSTALL = :
 subdir = src
-DIST_COMMON = $(srcdir)/Makefile.in $(srcdir)/Makefile.am README
+DIST_COMMON = $(srcdir)/Makefile.in $(srcdir)/Makefile.am
 ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
 am__aclocal_m4_deps = $(top_srcdir)/configure.ac
 am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \

src/parallel

@@ -781,7 +781,7 @@ sub get_options_from_array {
 sub parse_options {
     # Returns: N/A
     # Defaults:
-    $Global::version = 20141123;
+    $Global::version = 20141209;
     $Global::progname = 'parallel';
     $Global::infinity = 2**31;
     $Global::debug = 0;
@@ -6865,6 +6865,7 @@ sub new {
 	}
     }
     # Replace replacement strings with {= perl expr =}
+    @command = merge_rpl_parts(@command);
     # Protect matching inside {= perl expr =}
     # by replacing {= and =} with \257< and \257>
     for(@command) {
@@ -6872,7 +6873,10 @@ sub new {
 	    ::error("Command cannot contain the character \257. Use a function for that.\n");
 	    ::wait_and_exit(255);
 	}
-	s/\Q$Global::parensleft\E(.*?)\Q$Global::parensright\E/\257<$1\257>/gx;
+	# Needs to match rightmost left parens (Perl defaults to leftmost)
+	# to deal with: {={==}
+	# Disallow \257 to avoid nested {= {= =} =}
+	while(s/([^\257]*) \Q$Global::parensleft\E ([^\257]*?) \Q$Global::parensright\E /$1\257<$2\257>/gx) {}
     }
     for my $rpl (keys %Global::rpl) {
 	# Replace the short hand string with the {= perl expr =} in $command and $opt::tagstring
@@ -6979,6 +6983,41 @@ sub new {
     }, ref($class) || $class;
 }
 
+sub merge_rpl_parts {
+    # '{=' 'perlexpr' '=}'  => '{= perlexpr =}'
+    # Input:
+    #   @in = the @command as given by the user
+    # Uses:
+    #   $Global::parensleft
+    #   $Global::parensright
+    # Returns:
+    #   @command with parts merged to keep {= and =} as one
+    my @in = @_;
+    my @out;
+    my $l = quotemeta($Global::parensleft);
+    my $r = quotemeta($Global::parensright);
+
+    while(@in) {
+	my $s = shift @in;
+	$_ = $s;
+	# Remove matching (right most) parens
+	while(s/(.*)$l.*?$r/$1/o) {}
+	if(/$l/o) {
+	    # Missing right parens
+	    while(@in) {
+		$s .= " ".shift @in;
+		$_ = $s;
+		while(s/(.*)$l.*?$r/$1/o) {}
+		if(not /$l/o) {
+		    last;
+		}
+	    }
+	}
+	push @out, $s;
+    }
+    return @out;
+}
+
 sub get {
     my $self = shift;
     if(@{$self->{'unget'}}) {

src/parallel.pod

@@ -3058,7 +3058,7 @@ To submit your jobs to the queue:
 You can of course use B<-S> to distribute the jobs to remote
 computers:
 
-  true >jobqueue; tail -f jobqueue | parallel -S ..
+  true >jobqueue; tail -n+0 -f jobqueue | parallel -S ..
 
 There is a a small issue when using GNU B<parallel> as queue
 system/batch manager: You have to submit JobSlot number of jobs before

src/parallel_tutorial.1

@@ -133,7 +133,7 @@
 .\" ========================================================================
 .\"
 .IX Title "PARALLEL_TUTORIAL 1"
-.TH PARALLEL_TUTORIAL 1 "2014-11-10" "20141022" "parallel"
+.TH PARALLEL_TUTORIAL 1 "2014-11-26" "20141122" "parallel"
 .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
 .\" way too many mistakes in technical documents.
 .if n .ad l

testsuite/tests-to-run/parallel-local-0.3s.sh

@@ -30,4 +30,15 @@ echo foo | parallel --pipe -k echo {#}
 
 echo '**'
 
+echo '### {= and =} in different groups'
+  parallel echo {= s/a/b/ =} ::: a
+  parallel echo {= s/a/b/=} ::: a
+  parallel echo {= s/a/b/=}{= s/a/b/=} ::: a
+  parallel echo {= s/a/b/=}{=s/a/b/=} ::: a
+  parallel echo {= s/a/b/=}{= {= s/a/b/=} ::: a
+  parallel echo {= s/a/b/=}{={=s/a/b/=} ::: a
+  parallel echo {= s/a/b/ =} {={==} ::: a
+  parallel echo {={= =} ::: a
+  parallel echo {= {= =} ::: a
+  parallel echo {= {= =} =} ::: a
 EOF

testsuite/wanted-results/parallel-local-0.3s

@@ -26,3 +26,25 @@ echo foo | parallel --pipe -k echo {#}
 1
 echo '**'
 **
+echo '### {= and =} in different groups'
+### {= and =} in different groups
+  parallel echo {= s/a/b/ =} ::: a
+b
+  parallel echo {= s/a/b/=} ::: a
+b
+  parallel echo {= s/a/b/=}{= s/a/b/=} ::: a
+bb
+  parallel echo {= s/a/b/=}{=s/a/b/=} ::: a
+bb
+  parallel echo {= s/a/b/=}{= {= s/a/b/=} ::: a
+b{= b
+  parallel echo {= s/a/b/=}{={=s/a/b/=} ::: a
+b{=b
+  parallel echo {= s/a/b/ =} {={==} ::: a
+b {=a
+  parallel echo {={= =} ::: a
+{=a
+  parallel echo {= {= =} ::: a
+{= a
+  parallel echo {= {= =} =} ::: a
+{= a =}