1 files changed, 0 insertions, 241 deletions
diff --git a/parse_scan.go b/parse_scan.go
deleted file mode 100644
index e75f1c5..0000000
--- a/parse_scan.go
+++ /dev/null
@@ -1,241 +0,0 @@
-// Copyright (C) 2022  Luke Shumaker <lukeshu@lukeshu.com>
-//
-// SPDX-License-Identifier: GPL-2.0-or-later
-
-package lowmemjson
-
-import (
-	"errors"
-	"fmt"
-	"io"
-)
-
-type ReadError struct {
-	Err    error
-	Offset int64
-}
-
-func (e *ReadError) Error() string {
-	return fmt.Sprintf("json: I/O error at input byte %v: %v", e.Offset, e.Err)
-}
-func (e *ReadError) Unwrap() error { return e.Err }
-
-type SyntaxError struct {
-	Err    string
-	Offset int64
-}
-
-func (e *SyntaxError) Error() string {
-	return fmt.Sprintf("json: syntax error at input byte %v: %v", e.Offset, e.Err)
-}
-
-type runeTypeScanner interface {
-	// The returned error is a *ReadError, a *SyntaxError, or nil.
-	// An EOF condition is represented either as
-	//
-	//   (char, size, RuneTypeEOF, nil)
-	//
-	// or
-	//
-	//   (char, size, RuneTypeError, &SyntaxError{Offset: offset: Err: io.ErrUnexepctedEOF})
-	ReadRuneType() (rune, int, RuneType, error)
-	// The returned error is a *ReadError, a *SyntaxError, io.EOF, or nil.
-	ReadRune() (rune, int, error)
-	UnreadRune() error
-	Reset()
-	InputOffset() int64
-}
-
-// runeTypeScannerImpl /////////////////////////////////////////////////////////////////////////////
-
-type runeTypeScannerImpl struct {
-	inner io.RuneReader
-
-	parser Parser
-	offset int64
-
-	repeat bool
-	stuck  bool
-	rRune  rune
-	rSize  int
-	rType  RuneType
-	rErr   error
-}
-
-var _ runeTypeScanner = (*runeTypeScannerImpl)(nil)
-
-func (sc *runeTypeScannerImpl) Reset() {
-	sc.parser.Reset()
-	sc.stuck = false
-	sc.repeat = false
-}
-
-func (sc *runeTypeScannerImpl) ReadRuneType() (rune, int, RuneType, error) {
-	switch {
-	case sc.stuck:
-		// do nothing
-	case sc.repeat:
-		if _, ok := sc.inner.(io.RuneScanner); ok {
-			sc.inner.ReadRune()
-		}
-	default:
-		var err error
-		sc.rRune, sc.rSize, err = sc.inner.ReadRune()
-		sc.offset += int64(sc.rSize)
-		switch err {
-		case nil:
-			sc.rType, err = sc.parser.HandleRune(sc.rRune)
-			if err != nil {
-				sc.rErr = &SyntaxError{
-					Offset: sc.offset,
-					Err:    err.Error(),
-				}
-			} else {
-				sc.rErr = nil
-			}
-		case io.EOF:
-			sc.rType, err = sc.parser.HandleEOF()
-			if err != nil {
-				sc.rErr = &SyntaxError{
-					Offset: sc.offset,
-					Err:    err.Error(),
-				}
-			} else {
-				sc.rErr = nil
-			}
-		default:
-			sc.rType = 0
-			sc.rErr = &ReadError{
-				Offset: sc.offset,
-				Err:    err,
-			}
-		}
-	}
-	sc.repeat = false
-	sc.stuck = sc.rType == RuneTypeEOF || sc.rType == RuneTypeError
-	return sc.rRune, sc.rSize, sc.rType, sc.rErr
-}
-
-func (sc *runeTypeScannerImpl) ReadRune() (rune, int, error) {
-	r, s, t, e := sc.ReadRuneType()
-	switch t {
-	case RuneTypeEOF:
-		return 0, 0, io.EOF
-	case RuneTypeError:
-		return 0, 0, e
-	default:
-		return r, s, nil
-	}
-}
-
-var ErrInvalidUnreadRune = errors.New("lowmemjson: invalid use of UnreadRune")
-
-// UnreadRune undoes a call to .ReadRune() or .ReadRuneType().  If the
-// last call to .ReadRune() or .ReadRuneType() has already been
-// unread, or if that call returned an error or RuneTypeEOF, then
-// ErrInvalidRune is returned.  Otherwise, nil is returned.
-func (sc *runeTypeScannerImpl) UnreadRune() error {
-	if sc.stuck || sc.repeat {
-		return ErrInvalidUnreadRune
-	}
-	sc.repeat = true
-	if rs, ok := sc.inner.(io.RuneScanner); ok {
-		_ = rs.UnreadRune()
-	}
-	return nil
-}
-
-func (sc *runeTypeScannerImpl) InputOffset() int64 {
-	ret := sc.offset
-	if sc.repeat {
-		ret -= int64(sc.rSize)
-	}
-	return ret
-}
-
-// noWSRuneTypeScanner /////////////////////////////////////////////////////////////////////////////
-
-type noWSRuneTypeScanner struct {
-	inner runeTypeScanner
-}
-
-var _ runeTypeScanner = (*noWSRuneTypeScanner)(nil)
-
-func (sc *noWSRuneTypeScanner) ReadRuneType() (rune, int, RuneType, error) {
-again:
-	r, s, t, e := sc.inner.ReadRuneType()
-	if t == RuneTypeSpace {
-		goto again
-	}
-	return r, s, t, e
-}
-
-func (sc *noWSRuneTypeScanner) ReadRune() (rune, int, error) {
-	r, s, t, e := sc.ReadRuneType()
-	switch t {
-	case RuneTypeEOF:
-		return 0, 0, io.EOF
-	case RuneTypeError:
-		return 0, 0, e
-	default:
-		return r, s, nil
-	}
-}
-
-func (sc *noWSRuneTypeScanner) UnreadRune() error  { return sc.inner.UnreadRune() }
-func (sc *noWSRuneTypeScanner) Reset()             { sc.inner.Reset() }
-func (sc *noWSRuneTypeScanner) InputOffset() int64 { return sc.inner.InputOffset() }
-
-// elemRuneTypeScanner /////////////////////////////////////////////////////////////////////////////
-
-type elemRuneTypeScanner struct {
-	inner runeTypeScanner
-
-	parser Parser
-	repeat bool
-	rType  RuneType
-}
-
-var _ runeTypeScanner = (*elemRuneTypeScanner)(nil)
-
-func (sc *elemRuneTypeScanner) ReadRuneType() (rune, int, RuneType, error) {
-	r, s, t, e := sc.inner.ReadRuneType()
-
-	// Check if we need to insert a premature EOF
-	if t != RuneTypeError && t != RuneTypeEOF {
-		if sc.repeat {
-			sc.repeat = false
-		} else {
-			sc.rType, _ = sc.parser.HandleRune(r)
-		}
-		if sc.rType == RuneTypeEOF {
-			_ = sc.inner.UnreadRune()
-		}
-		t = sc.rType
-	}
-	if t == RuneTypeEOF {
-		return 0, 0, RuneTypeEOF, nil
-	}
-
-	return r, s, t, e
-}
-
-func (sc *elemRuneTypeScanner) ReadRune() (rune, int, error) {
-	r, s, t, e := sc.ReadRuneType()
-	switch t {
-	case RuneTypeEOF:
-		return 0, 0, io.EOF
-	case RuneTypeError:
-		return 0, 0, e
-	default:
-		return r, s, nil
-	}
-}
-
-func (sc *elemRuneTypeScanner) UnreadRune() error {
-	sc.repeat = true
-	return sc.inner.UnreadRune()
-}
-
-func (sc *elemRuneTypeScanner) InputOffset() int64 { return sc.inner.InputOffset() }
-func (sc *elemRuneTypeScanner) Reset()             {}