From 3a0bcb88b1cd832d3e26cfd7074c5344129f81a4 Mon Sep 17 00:00:00 2001
From: Alejandro Colomar <alx@kernel.org>
Date: Sat, 4 Nov 2023 22:00:57 +0100
Subject: bin/grepc, grepc.1: -A, -B, -C: Add flags for printing context.

These flags are passed to pcre2grep(1).

Signed-off-by: Alejandro Colomar <alx@kernel.org>
---
 bin/grepc              | 17 ++++++++++++++++-
 share/man/man1/grepc.1 | 15 +++++++++++++++
 2 files changed, 31 insertions(+), 1 deletion(-)

diff --git a/bin/grepc b/bin/grepc
index f1e105b..0123742 100755
--- a/bin/grepc
+++ b/bin/grepc
@@ -2,6 +2,9 @@
 
 
 # Defaults:
+A='';
+B='';
+C='';
 c='no';
 h='-H';
 i='';
@@ -40,8 +43,17 @@ grepc_err()
 
 grepc_parse_cmd()
 {
-	while getopts "chiklt:" opt; do
+	while getopts "A:B:C:chiklt:" opt; do
 		case "$opt" in
+		A)
+			A="-A$OPTARG";
+			;;
+		B)
+			B="-B$OPTARG";
+			;;
+		C)
+			C="-C$OPTARG";
+			;;
 		c)
 			c='yes';
 			;;
@@ -236,6 +248,9 @@ grepc_search()
 
 	grepc_patterns "$identifier" >"$patterns";
 
+	opts="$opts $A";
+	opts="$opts $B";
+	opts="$opts $C";
 	opts="$opts $h";
 	opts="$opts $i";
 	opts="$opts $l";
diff --git a/share/man/man1/grepc.1 b/share/man/man1/grepc.1
index 0e01781..ac124f3 100644
--- a/share/man/man1/grepc.1
+++ b/share/man/man1/grepc.1
@@ -122,6 +122,21 @@ Uses within type definitions
 .RE
 .SH OPTIONS
 .TP
+.BI \-A \~n
+Print
+.I n
+lines of trailing context after a match.
+.TP
+.BI \-B \~n
+Print
+.I n
+lines of leading context before a match.
+.TP
+.BI \-C \~n
+Print
+.I n
+lines of context surrounding a match.
+.TP
 .B \-c
 Surround the matched strings
 with escape sequences to display them in color on the terminal.
-- 
cgit v1.2.3