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Hack to suppress EOF errors when parsing PDF fragments in font_test.go

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This commit is contained in:
Peter Williams 2018-10-01 16:47:09 +10:00
parent 5c2448d09f
commit a27c6bbf90
1 changed files with 7 additions and 2 deletions
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9
pdf/core/parser.go
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@ -52,6 +52,9 @@ type PdfParser struct {
// the length reference (if not object) prior to reading the actual stream. This has risks of endless looping.
// Tracking is necessary to avoid recursive loops.
streamLengthReferenceLookupInProgress map[int64]bool
// Hack to allow parsing of PDF fragments without reporting an EOF error.
suppressEOF bool
}
// PdfVersion returns version of the PDF file.
@ -1322,7 +1325,9 @@ func (parser *PdfParser) ParseIndirectObject() (PdfObject, error) {
common.Log.Trace("-Read indirect obj")
bb, err := parser.reader.Peek(20)
if err != nil {
common.Log.Debug("ERROR: Fail to read indirect obj")
if !(parser.suppressEOF && err == io.EOF) {
common.Log.Debug("ERROR: Fail to read indirect obj. err=%v", err)
}
return &indirect, err
}
common.Log.Trace("(indirect obj peek \"%s\"", string(bb))
@ -1493,7 +1498,7 @@ func (parser *PdfParser) ParseIndirectObject() (PdfObject, error) {
// For testing purposes.
// TODO: Unexport (v3) or move to test files, if needed by external test cases.
func NewParserFromString(txt string) *PdfParser {
parser := PdfParser{}
parser := PdfParser{suppressEOF: true}
buf := []byte(txt)
bufReader := bytes.NewReader(buf)