fixed dependencies

vendor/github.com/go-latex/latex/token/kind_string.go

@@ -0,0 +1,43 @@
+// Code generated by "stringer -type Kind"; DO NOT EDIT.
+
+// Copyright ©2020 The go-latex Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package token
+
+import "strconv"
+
+func _() {
+	// An "invalid array index" compiler error signifies that the constant values have changed.
+	// Re-run the stringer command to generate them again.
+	var x [1]struct{}
+	_ = x[Invalid-0]
+	_ = x[Macro-1]
+	_ = x[EmptyLine-2]
+	_ = x[Comment-3]
+	_ = x[Space-4]
+	_ = x[Word-5]
+	_ = x[Number-6]
+	_ = x[Symbol-7]
+	_ = x[Lbrace-8]
+	_ = x[Rbrace-9]
+	_ = x[Lbrack-10]
+	_ = x[Rbrack-11]
+	_ = x[Lparen-12]
+	_ = x[Rparen-13]
+	_ = x[Other-14]
+	_ = x[Verbatim-15]
+	_ = x[EOF-16]
+}
+
+const _Kind_name = "InvalidMacroEmptyLineCommentSpaceWordNumberSymbolLbraceRbraceLbrackRbrackLparenRparenOtherVerbatimEOF"
+
+var _Kind_index = [...]uint8{0, 7, 12, 21, 28, 33, 37, 43, 49, 55, 61, 67, 73, 79, 85, 90, 98, 101}
+
+func (i Kind) String() string {
+	if i < 0 || i >= Kind(len(_Kind_index)-1) {
+		return "Kind(" + strconv.FormatInt(int64(i), 10) + ")"
+	}
+	return _Kind_name[_Kind_index[i]:_Kind_index[i+1]]
+}

vendor/github.com/go-latex/latex/token/token.go

@@ -0,0 +1,50 @@
+// Copyright ©2020 The go-latex Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Package token defines constants representing the lexical tokens of
+// LaTeX documents.
+package token // import "github.com/go-latex/latex/token"
+
+//go:generate stringer -type Kind
+
+import (
+	"go/token"
+)
+
+// Kind is a kind of LaTeX token.
+type Kind int
+
+const (
+	Invalid Kind = iota
+	Macro
+	EmptyLine
+	Comment
+	Space
+	Word
+	Number
+	Symbol // +,-,?,>,>=,...
+	Lbrace
+	Rbrace
+	Lbrack
+	Rbrack
+	Lparen
+	Rparen
+	Other
+	Verbatim
+	EOF
+)
+
+// Token holds informations about a token.
+type Token struct {
+	Kind Kind // Kind is the kind of token.
+	Pos  Pos  // Pos is the position of a token.
+	Text string
+}
+
+func (t Token) String() string { return t.Text }
+
+// Pos is a compact encoding of a source position within a file set.
+//
+// Aliased from go/token.Pos
+type Pos = token.Pos