From f36918966727be99bfe9d461059269f36f92058a Mon Sep 17 00:00:00 2001
From: Runxi Yu
Date: Fri, 6 Mar 2026 10:52:02 +0800
Subject: config: Split files

---
 config/char.go | 52 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 52 insertions(+)
 create mode 100644 config/char.go

(limited to 'config/char.go')

diff --git a/config/char.go b/config/char.go
new file mode 100644
index 00000000..da52013c
--- /dev/null
+++ b/config/char.go
@@ -0,0 +1,52 @@
+package config
+
+func (p *configParser) nextChar() (byte, error) {
+	if p.hasPeeked {
+		p.hasPeeked = false
+
+		return p.peeked, nil
+	}
+
+	ch, err := p.reader.ReadByte()
+	if err != nil {
+		return 0, err
+	}
+
+	if ch == '\r' {
+		next, err := p.reader.ReadByte()
+		if err == nil && next == '\n' {
+			ch = '\n'
+		} else if err == nil {
+			// Weird but ok
+			_ = p.reader.UnreadByte()
+		}
+	}
+
+	if ch == '\n' {
+		p.lineNum++
+	}
+
+	return ch, nil
+}
+
+func (p *configParser) unreadChar(ch byte) {
+	p.peeked = ch
+
+	p.hasPeeked = true
+	if ch == '\n' && p.lineNum > 1 {
+		p.lineNum--
+	}
+}
+
+func (p *configParser) skipToEOL() error {
+	for {
+		ch, err := p.nextChar()
+		if err != nil {
+			return err
+		}
+
+		if ch == '\n' {
+			return nil
+		}
+	}
+}
-- 
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