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Go: cleanup

This commit is contained in:
Přemysl Eric Janouch 2024-02-04 05:03:09 +01:00
parent 0b837b3a0e
commit ff7de4b141
Signed by: p
GPG Key ID: A0420B94F92B9493
1 changed files with 7 additions and 7 deletions
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14
pdf/pdf.go
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@ -809,8 +809,8 @@ func (u *Updater) loadXrefStream(
r.compressed = &f2 r.compressed = &f2
r.nonfree = true r.nonfree = true
default: default:
// TODO: It should be treated as a reference to the null object. // TODO(p): It should be treated as a reference to
// We can't currently represent that. // the null object. We can't currently represent that.
return newError("unsupported cross-reference stream contents") return newError("unsupported cross-reference stream contents")
} }
@ -924,7 +924,7 @@ func NewUpdater(document []byte) (*Updater, error) {
} }
loadedXrefs[xrefOffset] = struct{}{} loadedXrefs[xrefOffset] = struct{}{}
// TODO: Descend into XRefStm here first, if present, // TODO(p): Descend into XRefStm here first, if present,
// which is also a linked list. // which is also a linked list.
// We allow for mixed cross-reference tables and streams // We allow for mixed cross-reference tables and streams
@ -1213,7 +1213,7 @@ func (u *Updater) flushXRefStm(updated []uint, buf *bytes.Buffer) {
fmt.Fprintf(buf, "\n%d 0 obj\n%s\nendobj", n, stream.Serialize()) fmt.Fprintf(buf, "\n%d 0 obj\n%s\nendobj", n, stream.Serialize())
} }
func (u *Updater) flushXRef(updated []uint, buf *bytes.Buffer) { func (u *Updater) flushXRefTable(updated []uint, buf *bytes.Buffer) {
buf.WriteString("\nxref\n") buf.WriteString("\nxref\n")
for i := 0; i < len(updated); { for i := 0; i < len(updated); {
start, stop := updated[i], updated[i]+1 start, stop := updated[i], updated[i]+1
@ -1245,7 +1245,7 @@ func (u *Updater) flushXRef(updated []uint, buf *bytes.Buffer) {
fmt.Fprintf(buf, "trailer\n%s", trailer.Serialize()) fmt.Fprintf(buf, "trailer\n%s", trailer.Serialize())
} }
// FlushUpdates writes an updated cross-reference table and trailer. // FlushUpdates writes an updated cross-reference table and trailer, or stream.
func (u *Updater) FlushUpdates() { func (u *Updater) FlushUpdates() {
updated := make([]uint, 0, len(u.updated)) updated := make([]uint, 0, len(u.updated))
for n := range u.updated { for n := range u.updated {
@ -1266,7 +1266,7 @@ func (u *Updater) FlushUpdates() {
if typ, _ := u.Trailer["Type"]; typ.Kind == Name && typ.String == "XRef" { if typ, _ := u.Trailer["Type"]; typ.Kind == Name && typ.String == "XRef" {
u.flushXRefStm(updated, buf) u.flushXRefStm(updated, buf)
} else { } else {
u.flushXRef(updated, buf) u.flushXRefTable(updated, buf)
} }
fmt.Fprintf(buf, "\nstartxref\n%d\n%%%%EOF\n", startXref) fmt.Fprintf(buf, "\nstartxref\n%d\n%%%%EOF\n", startXref)
@ -1302,7 +1302,7 @@ func (u *Updater) GetStreamData(stream Object) ([]byte, error) {
return nil, errors.New("unsupported stream Filter") return nil, errors.New("unsupported stream Filter")
} }
// TODO: Support << /Columns N /Predictor 12 >> // TODO(p): Support << /Columns N /Predictor 12 >>
// which usually appears in files with cross-reference streams. // which usually appears in files with cross-reference streams.
if parms, ok := stream.Dict["DecodeParms"]; ok && parms.Kind != Nil { if parms, ok := stream.Dict["DecodeParms"]; ok && parms.Kind != Nil {
return nil, errors.New("DecodeParms are not supported") return nil, errors.New("DecodeParms are not supported")