From ca7a3ccab4874931e8d302e73283b45c5737f5c2 Mon Sep 17 00:00:00 2001
From: Gokcehan <gokcehankara@gmail.com>
Date: Sat, 15 Jul 2017 17:18:37 +0300
Subject: [PATCH] add ignorecase option for case insensitive search

Mentioned in #69.
---
 comp.go      | 3 +++
 doc.go       | 1 +
 docstring.go | 1 +
 eval.go      | 6 ++++++
 nav.go       | 3 +++
 opts.go      | 2 ++
 6 files changed, 16 insertions(+)

diff --git a/comp.go b/comp.go
index 538ab3c..cb67ae0 100644
--- a/comp.go
+++ b/comp.go
@@ -59,6 +59,9 @@ var (
 		"hidden",
 		"nohidden",
 		"hidden!",
+		"ignorecase",
+		"noignorecase",
+		"ignorecase!",
 		"preview",
 		"nopreview",
 		"preview!",
diff --git a/doc.go b/doc.go
index 2dacacb..132b5db 100644
--- a/doc.go
+++ b/doc.go
@@ -72,6 +72,7 @@ The following options can be used to customize the behavior of lf:
     dirfirst    boolean  (default on)
     globsearch  boolean  (default off)
     hidden      boolean  (default off)
+    ignorecase  boolean  (default off)
     preview     boolean  (default on)
     reverse     boolean  (default off)
     wrapscan    boolean  (default on)
diff --git a/docstring.go b/docstring.go
index adfc0db..8eb2ed9 100644
--- a/docstring.go
+++ b/docstring.go
@@ -76,6 +76,7 @@ The following options can be used to customize the behavior of lf:
     dirfirst    boolean  (default on)
     globsearch  boolean  (default off)
     hidden      boolean  (default off)
+    ignorecase  boolean  (default off)
     preview     boolean  (default on)
     reverse     boolean  (default off)
     wrapscan    boolean  (default on)
diff --git a/eval.go b/eval.go
index 34956a2..0b02677 100644
--- a/eval.go
+++ b/eval.go
@@ -41,6 +41,12 @@ func (e *setExpr) eval(app *app, args []string) {
 	case "hidden!":
 		gOpts.hidden = !gOpts.hidden
 		app.nav.renew(app.nav.height)
+	case "ignorecase":
+		gOpts.ignorecase = true
+	case "noignorecase":
+		gOpts.ignorecase = false
+	case "ignorecase!":
+		gOpts.ignorecase = !gOpts.ignorecase
 	case "preview":
 		gOpts.preview = true
 	case "nopreview":
diff --git a/nav.go b/nav.go
index 9573cc3..d17f68d 100644
--- a/nav.go
+++ b/nav.go
@@ -369,6 +369,9 @@ func (nav *nav) cd(wd string) error {
 }
 
 func match(pattern, name string) (matched bool, err error) {
+	if gOpts.ignorecase {
+		pattern, name = strings.ToLower(pattern), strings.ToLower(name)
+	}
 	if gOpts.globsearch {
 		return filepath.Match(pattern, name)
 	} else {
diff --git a/opts.go b/opts.go
index 43a4a45..da5d56a 100644
--- a/opts.go
+++ b/opts.go
@@ -7,6 +7,7 @@ var gOpts struct {
 	dirfirst   bool
 	globsearch bool
 	hidden     bool
+	ignorecase bool
 	preview    bool
 	reverse    bool
 	wrapscan   bool
@@ -30,6 +31,7 @@ func init() {
 	gOpts.dirfirst = true
 	gOpts.globsearch = false
 	gOpts.hidden = false
+	gOpts.ignorecase = false
 	gOpts.preview = true
 	gOpts.reverse = false
 	gOpts.wrapscan = true