From 791b704257d19259e39ba6b6e1d55cc5497b2187 Mon Sep 17 00:00:00 2001
From: Gokcehan <gokcehankara@gmail.com>
Date: Wed, 27 Mar 2019 22:07:41 +0300
Subject: [PATCH] add 'errorfmt' option to format error messages

Related #154
---
 complete.go  | 1 +
 doc.go       | 1 +
 docstring.go | 1 +
 eval.go      | 2 ++
 lf.1         | 1 +
 opts.go      | 2 ++
 ui.go        | 2 +-
 7 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/complete.go b/complete.go
index 279cd48..ad20780 100644
--- a/complete.go
+++ b/complete.go
@@ -118,6 +118,7 @@ var (
 		"period",
 		"scrolloff",
 		"tabstop",
+		"errorfmt",
 		"filesep",
 		"ifs",
 		"previewer",
diff --git a/doc.go b/doc.go
index d8bb009..f394e58 100644
--- a/doc.go
+++ b/doc.go
@@ -117,6 +117,7 @@ The following options can be used to customize the behavior of lf:
     period          integer  (default 0) (zero to disable periodic loading)
     scrolloff       integer  (default 0)
     tabstop         integer  (default 8)
+    errorfmt        string   (default "\033[7;31;47m%s\033[0m")
     filesep         string   (default "\n")
     ifs             string   (default '') (not exported if empty)
     previewer       string   (default '') (not filtered if empty)
diff --git a/docstring.go b/docstring.go
index 5e7e24c..23ff8d8 100644
--- a/docstring.go
+++ b/docstring.go
@@ -120,6 +120,7 @@ The following options can be used to customize the behavior of lf:
     period          integer  (default 0) (zero to disable periodic loading)
     scrolloff       integer  (default 0)
     tabstop         integer  (default 8)
+    errorfmt        string   (default "\033[7;31;47m%s\033[0m")
     filesep         string   (default "\n")
     ifs             string   (default ”) (not exported if empty)
     previewer       string   (default ”) (not filtered if empty)
diff --git a/eval.go b/eval.go
index eff0678..33415d1 100644
--- a/eval.go
+++ b/eval.go
@@ -205,6 +205,8 @@ func (e *setExpr) eval(app *app, args []string) {
 			return
 		}
 		gOpts.tabstop = n
+	case "errorfmt":
+		gOpts.errorfmt = e.val
 	case "filesep":
 		gOpts.filesep = e.val
 	case "ifs":
diff --git a/lf.1 b/lf.1
index 2d5a04f..d51661e 100644
--- a/lf.1
+++ b/lf.1
@@ -132,6 +132,7 @@ The following options can be used to customize the behavior of lf:
     period          integer  (default 0) (zero to disable periodic loading)
     scrolloff       integer  (default 0)
     tabstop         integer  (default 8)
+    errorfmt        string   (default "\e033[7;31;47m%s\e033[0m")
     filesep         string   (default "\en")
     ifs             string   (default ”) (not exported if empty)
     previewer       string   (default ”) (not filtered if empty)
diff --git a/opts.go b/opts.go
index e1ac65d..cbc08c6 100644
--- a/opts.go
+++ b/opts.go
@@ -43,6 +43,7 @@ var gOpts struct {
 	period         int
 	scrolloff      int
 	tabstop        int
+	errorfmt       string
 	filesep        string
 	ifs            string
 	previewer      string
@@ -75,6 +76,7 @@ func init() {
 	gOpts.period = 0
 	gOpts.scrolloff = 0
 	gOpts.tabstop = 8
+	gOpts.errorfmt = "\033[7;31;47m%s\033[0m"
 	gOpts.filesep = "\n"
 	gOpts.promptfmt = "\033[32;1m%u@%h\033[0m:\033[34;1m%w/\033[0m\033[1m%f\033[0m"
 	gOpts.shell = gDefaultShell
diff --git a/ui.go b/ui.go
index 5a2e5b7..7b3b981 100644
--- a/ui.go
+++ b/ui.go
@@ -499,7 +499,7 @@ func (ui *ui) echomsgf(format string, a ...interface{}) {
 }
 
 func (ui *ui) echoerr(msg string) {
-	ui.msg = fmt.Sprintf("\033[7;31;47m%s\033[0m", msg)
+	ui.msg = fmt.Sprintf(gOpts.errorfmt, msg)
 	log.Printf("error: %s", msg)
 }