golint and godoc fixes in textencoding

pdf/model/textencoding/encoder.go

@@ -10,6 +10,7 @@ import (
 	"github.com/unidoc/unidoc/pdf/core"
 )
 
+// TextEncoder defines the common methods that a text encoder implementation must have in UniDoc.
 type TextEncoder interface {
 	// String returns a string that describes the TextEncoder instance.
 	String() string

pdf/model/textencoding/glyphs_glyphlist.go

@@ -4,7 +4,8 @@
  */
 /*
  * The embedded glyph to unicode mappings specified in this file are distributed under the terms
- * listed in ./glyphlist/glyphlist.txt, ./glyphlist/texglyphlist.txt and ./glyphlist/addtional.txt
+ * listed in ./testdata/glyphlist/glyphlist.txt, ./testdata/glyphlist/texglyphlist.txt
+ * and ./tesdtdata/glyphlist/addtional.txt
  */
 
 package textencoding

pdf/model/textencoding/glyphs_zapfdingbats.go

@@ -4,7 +4,7 @@
  */
 /*
  * The embedded glyph to unicode mappings specified in this file are distributed under the terms listed in
- * ./glyphlist/zapfdingbats.txt.
+ * ./testdata/glyphlist/zapfdingbats.txt.
  */
 
 package textencoding

pdf/model/textencoding/identity.go

@@ -18,8 +18,8 @@ type IdentityEncoder struct {
 	baseName string
 }
 
-// NewSimpleTextEncoder returns a IdentityEncoder based on predefined encoding `baseName` and
-// difference map `differences`.
+// NewIdentityTextEncoder returns a new IdentityEncoder based on predefined
+// encoding `baseName` and difference map `differences`.
 func NewIdentityTextEncoder(baseName string) IdentityEncoder {
 	return IdentityEncoder{baseName}
 }

pdf/model/textencoding/truetype.go

@@ -38,14 +38,14 @@ func NewTrueTypeFontEncoder(runeToGlyphIndexMap map[uint16]uint16) TrueTypeFontE
 // ttEncoderNumEntries is the maximum number of encoding entries shown in SimpleEncoder.String()
 const ttEncoderNumEntries = 1000
 
-// String returns a string that describes `se`.
-func (se TrueTypeFontEncoder) String() string {
+// String returns a string that describes `enc`.
+func (enc TrueTypeFontEncoder) String() string {
 	parts := []string{
-		fmt.Sprintf("%d entries", len(se.runeToGlyphIndexMap)),
+		fmt.Sprintf("%d entries", len(enc.runeToGlyphIndexMap)),
 	}
 
 	codes := []int{}
-	for c := range se.runeToGlyphIndexMap {
+	for c := range enc.runeToGlyphIndexMap {
 		codes = append(codes, int(c))
 	}
 	sort.Ints(codes)
@@ -57,7 +57,7 @@ func (se TrueTypeFontEncoder) String() string {
 	for i := 0; i < numCodes; i++ {
 		c := codes[i]
 		parts = append(parts, fmt.Sprintf("%d=0x%02x: %q",
-			c, c, se.runeToGlyphIndexMap[uint16(c)]))
+			c, c, enc.runeToGlyphIndexMap[uint16(c)]))
 	}
 	return fmt.Sprintf("TRUETYPE_ENCODER{%s}", strings.Join(parts, ", "))
 }