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Diffstat (limited to 'config/char.go')
-rw-r--r--config/char.go52
1 files changed, 52 insertions, 0 deletions
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
+ }
+ }
+}