From db4bc2afb2906c1e08ab9b2f88483a98e0cad983 Mon Sep 17 00:00:00 2001
From: Book Pauk <bookpauk@gmail.com>
Date: Sun, 17 Feb 2019 14:27:49 +0700
Subject: [PATCH] =?UTF-8?q?=D0=A3=D0=BB=D1=83=D1=87=D1=88=D0=B5=D0=BD?=
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 =?UTF-8?q?=20=D0=BE=D0=BF=D1=80=D0=B5=D0=B4=D0=B5=D0=BB=D0=B5=D0=BD=D0=B8?=
 =?UTF-8?q?=D1=8F=20=D1=82=D0=B5=D0=BA=D1=81=D1=82=D0=B0?=
MIME-Version: 1.0
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---
 server/core/BookConverter/textUtils.js | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/server/core/BookConverter/textUtils.js b/server/core/BookConverter/textUtils.js
index 316f0ec7..5713d1a7 100644
--- a/server/core/BookConverter/textUtils.js
+++ b/server/core/BookConverter/textUtils.js
@@ -70,13 +70,22 @@ function getEncoding(buf) {
 
 function checkIfText(buf) {
     let spaceCount = 0;
+    let crCount = 0;
+    let lfCount = 0;
     for (let i = 0; i < buf.length; i++) {
         if (buf[i] == 32)
             spaceCount++;
+        if (buf[i] == 13)
+            crCount++;
+        if (buf[i] == 10)
+            lfCount++;
     }
-    const freq = spaceCount/(buf.length + 1);
 
-    return (freq > 0.1);
+    const spaceFreq = spaceCount/(buf.length + 1);
+    const crFreq = crCount/(buf.length + 1);
+    const lfFreq = lfCount/(buf.length + 1);
+
+    return (spaceFreq > 0.1 || crFreq > 0.03 || lfFreq > 0.03);
 }
 
 module.exports = {