From 71099a8a4ec8819094a210084d6b28bc4945780e Mon Sep 17 00:00:00 2001
From: Julien Dessaux
Date: Thu, 7 Oct 2021 18:17:03 +0200
Subject: Fixed tricky field loading bug

---
 pkg/field/field.go | 25 ++++++++++++++++++-------
 1 file changed, 18 insertions(+), 7 deletions(-)

(limited to 'pkg/field')

diff --git a/pkg/field/field.go b/pkg/field/field.go
index 72890fe..efd59ec 100644
--- a/pkg/field/field.go
+++ b/pkg/field/field.go
@@ -32,6 +32,7 @@ func Load(fd io.Reader) (*Field, error) {
 	f := new(Field)
 	l := new(Line)
 	trailingSpaces := 0
+	lastReadIsCR := false
 	for {
 		data := make([]byte, 4096)
 		if n, errRead := fd.Read(data); errRead != nil {
@@ -61,6 +62,10 @@ func Load(fd io.Reader) (*Field, error) {
 				if data[i] == '' {
 					continue
 				}
+				if lastReadIsCR && data[i] == '\n' {
+					lastReadIsCR = false
+					continue
+				}
 				if data[i] == '\n' || data[i] == '\r' {
 					if f.ly == 0 {
 						if l.l == 0 {
@@ -69,17 +74,23 @@ func Load(fd io.Reader) (*Field, error) {
 						f.x = l.x
 					}
 					f.ly++
-					if f.x > l.x {
-						f.x = l.x
-					}
-					if f.lx < l.l+l.x-f.x {
-						f.lx = l.l + l.x - f.x
+					if l.l > 0 {
+						if f.x > l.x {
+							f.x = l.x
+						}
+						if f.lx < l.l+l.x-f.x {
+							f.lx = l.l + l.x - f.x
+						}
 					}
 					f.lines = append(f.lines, *l)
 					l = new(Line)
 					trailingSpaces = 0
-					if i+1 < n && data[i] == '\r' && data[i+1] == '\n' {
-						i++
+					if data[i] == '\r' {
+						if i+1 < n && data[i+1] == '\n' {
+							i++
+						} else {
+							lastReadIsCR = true
+						}
 					}
 				} else {
 					if l.l == 0 && data[i] == ' ' {
-- 
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