From 2e44e619a89589f79253f95d3d6428f411b842e4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?John=20Ankarstr=C3=B6m?= <john@ankarstrom.se>
Date: Wed, 26 May 2021 14:39:37 +0200
Subject: mum: Support // and ?? (search using last regex)

---
 src/mum | 27 ++++++++++++++++++++-------
 1 file changed, 20 insertions(+), 7 deletions(-)

diff --git a/src/mum b/src/mum
index 07cec1d..77751e0 100755
--- a/src/mum
+++ b/src/mum
@@ -44,6 +44,7 @@ my $MESSAGE = 0; # selected message
 my $INDEX = '-'; # loaded mbox index
 my @MESSAGES; # loaded messages
 my %MARKS; # saved marks
+my $SEARCH; # last search regex
 
 # Open TTY for reading and writing
 
@@ -76,8 +77,8 @@ while () {
 		elsif (/^(?&range) \Z $d/x) {
 			# select last message in range
 			my ($a, $b);
-			$a = toloc(0, $RANGE[0]) if @RANGE > 1;
-			$b = toloc($a, $RANGE[$#RANGE]) or next;
+			$a = toloc(0, shift @RANGE) or next if @RANGE > 1;
+			$b = toloc($a, shift @RANGE) or next;
 			$MESSAGE = $b;
 		}
 
@@ -104,7 +105,9 @@ h:
 
 		# p
 		elsif (/^ (?&range)? p \Z $d/x) {
-			print Dumper(@RANGE), "\n";
+			my ($a, $b);
+			$a = toloc(0, shift @RANGE) or next if @RANGE > 1;
+			$b = toloc($a, shift @RANGE) or next if @RANGE;
 			print "p\n";
 		}
 
@@ -181,24 +184,34 @@ sub toloc {
 		$loc = scalar @MESSAGES if $ref{spec} eq '$';
 	}
 
-	elsif ($ref{next}) {
-		$start = 1 if not $start;
+	elsif (exists $ref{next}) {
+		$ref{next} = $SEARCH if not $ref{next};
+		$SEARCH = $ref{next};
+
+		$start = $MESSAGE+1 if not $start;
 		$loc = $start-1;
+
 		for (@MESSAGES[$start-1..$#MESSAGES]) {
 			$loc++;
 			goto found if /$ref{next}/;
 		}
+
 		warn "pattern /$ref{next}/ not found\n";
 		return;
 	}
 
-	elsif ($ref{prev}) {
-		$start = @MESSAGES if not $start;
+	elsif (exists $ref{prev}) {
+		$ref{prev} = $SEARCH if not $ref{prev};
+		$SEARCH = $ref{prev};
+
+		$start = $MESSAGE-1 if not $start;
 		$loc = $start-1;
+
 		for (@MESSAGES[0..$start-1]) {
 			$loc--;
 			goto found if m?$ref{prev}?;
 		}
+
 		warn "pattern ?$ref{prev}? not found\n";
 		return;
 	}
-- 
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