From 550361815d6a1cf261e99ad2b430433ef6966e1a Mon Sep 17 00:00:00 2001
From: Max Rees <maxcrees@me.com>
Date: Fri, 5 Jun 2020 16:45:20 -0500
Subject: system/mandoc: new package

---
 system/mandoc/less.patch | 58 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 58 insertions(+)
 create mode 100644 system/mandoc/less.patch

(limited to 'system/mandoc/less.patch')

diff --git a/system/mandoc/less.patch b/system/mandoc/less.patch
new file mode 100644
index 000000000..19d567365
--- /dev/null
+++ b/system/mandoc/less.patch
@@ -0,0 +1,58 @@
+Default to using less(1) instead of more(1) if MANPAGER and PAGER are
+unset, and also set a pretty prompt and smart case searching like man-db
+does if less is used as a pager.
+
+The name of the manpage is not available in the scope of the patched
+function - maybe add it at some point.
+
+--- mandoc-1.14.5/main.c	2019-03-10 04:56:43.000000000 -0500
++++ mandoc-1.14.5/main.c	2020-06-05 01:59:10.640524340 -0500
+@@ -1170,8 +1170,9 @@ spawn_pager(struct tag_files *tag_files)
+ 	pager = getenv("MANPAGER");
+ 	if (pager == NULL || *pager == '\0')
+ 		pager = getenv("PAGER");
+-	if (pager == NULL || *pager == '\0')
+-		pager = "more -s";
++	if (pager == NULL || *pager == '\0') {
++		pager = "less";
++	}
+ 	cp = mandoc_strdup(pager);
+ 
+ 	/*
+@@ -1195,10 +1196,24 @@ spawn_pager(struct tag_files *tag_files)
+ 	/* For less(1), use the tag file. */
+ 
+ 	use_ofn = 1;
+-#if HAVE_LESS_T
+ 	if ((cmdlen = strlen(argv[0])) >= 4) {
+ 		cp = argv[0] + cmdlen - 4;
+ 		if (strcmp(cp, "less") == 0) {
++			/*
++			 * Set a few options like man-db does.
++			 * -i: smart case search
++			 * -mPm: set prompt to following string terminated by $
++			 */
++			argv[argc++] = "-imPm" \
++				" Manual page" \
++				/*
++				 * print " (END)" if EOF, else % in file followed by % sign.
++				 * ?X if X:else not X.
++				 */
++				"?e (END):?pB %pB\\%.. " \
++				"(press h for help or q to quit)" \
++				"$";
++#if HAVE_LESS_T
+ 			argv[argc++] = mandoc_strdup("-T");
+ 			argv[argc++] = tag_files->tfn;
+ 			if (tag_files->tagname != NULL) {
+@@ -1206,9 +1221,9 @@ spawn_pager(struct tag_files *tag_files)
+ 				argv[argc++] = tag_files->tagname;
+ 				use_ofn = 0;
+ 			}
++#endif
+ 		}
+ 	}
+-#endif
+ 	if (use_ofn)
+ 		argv[argc++] = tag_files->ofn;
+ 	argv[argc] = NULL;
-- 
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