From 5be556a4cff04e2ba4ffca92dbf725e2ef56da28 Mon Sep 17 00:00:00 2001
From: Bel LaPointe <breel@qualtrics.com>
Date: Tue, 17 Dec 2019 15:31:00 -0700
Subject: [PATCH] case insenstive regexp search

---
 notes/search.go | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/notes/search.go b/notes/search.go
index 4651c62..543866b 100755
--- a/notes/search.go
+++ b/notes/search.go
@@ -2,17 +2,21 @@ package notes
 
 import (
 	"bufio"
-	"bytes"
 	"local/notes-server/filetree"
 	"log"
 	"os"
 	"path"
 	"path/filepath"
+	"regexp"
 )
 
 func (n *Notes) Search(phrase string) (string, error) {
+	pattern, err := regexp.Compile("(?i)" + phrase)
+	if err != nil {
+		return "", err
+	}
 	files := filetree.NewFiles()
-	err := filepath.Walk(n.root,
+	err = filepath.Walk(n.root,
 		func(walked string, info os.FileInfo, err error) error {
 			if err != nil {
 				return err
@@ -23,7 +27,7 @@ func (n *Notes) Search(phrase string) (string, error) {
 			if size := info.Size(); size < 1 || size > (5*1024*1024) {
 				return nil
 			}
-			ok, err := grepFile(walked, []byte(phrase))
+			ok, err := grepFile(walked, pattern)
 			if err != nil && err.Error() == "bufio.Scanner: token too long" {
 				err = nil
 			}
@@ -40,7 +44,7 @@ func (n *Notes) Search(phrase string) (string, error) {
 	return filetree.Paths(*files).List(true), err
 }
 
-func grepFile(file string, phrase []byte) (bool, error) {
+func grepFile(file string, pattern *regexp.Regexp) (bool, error) {
 	f, err := os.Open(file)
 	if err != nil {
 		return false, err
@@ -48,7 +52,7 @@ func grepFile(file string, phrase []byte) (bool, error) {
 	defer f.Close()
 	scanner := bufio.NewScanner(f)
 	for scanner.Scan() {
-		if bytes.Contains(scanner.Bytes(), phrase) {
+		if pattern.Match(scanner.Bytes()) {
 			return true, scanner.Err()
 		}
 	}