patrickandClaude Sonnet 5
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Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
37 lines
1.3 KiB
Go
37 lines
1.3 KiB
Go
package testcorpus
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import (
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"bytes"
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"fmt"
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)
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// GenerateStack baut ein Mehrseiten-PDF, dessen Seite i den Text pageTexts[i] traegt.
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func GenerateStack(pageTexts []string) []byte {
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n := len(pageTexts)
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var buf bytes.Buffer
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var offsets []int
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obj := func(s string) {
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offsets = append(offsets, buf.Len())
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buf.WriteString(s)
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}
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buf.WriteString("%PDF-1.4\n")
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obj("1 0 obj<</Type/Catalog/Pages 2 0 R>>endobj\n")
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kids := ""
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for i := 0; i < n; i++ {
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kids += fmt.Sprintf("%d 0 R ", 3+2*i)
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}
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obj(fmt.Sprintf("2 0 obj<</Type/Pages/Kids[%s]/Count %d>>endobj\n", kids, n))
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for i, text := range pageTexts {
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obj(fmt.Sprintf("%d 0 obj<</Type/Page/Parent 2 0 R/MediaBox[0 0 300 300]/Resources<</Font<</F1<</Type/Font/Subtype/Type1/BaseFont/Helvetica>>>>>>/Contents %d 0 R>>endobj\n", 3+2*i, 4+2*i))
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content := fmt.Sprintf("BT /F1 12 Tf 20 150 Td (%s) Tj ET", escapePDFString(text))
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obj(fmt.Sprintf("%d 0 obj<</Length %d>>stream\n%s\nendstream endobj\n", 4+2*i, len(content), content))
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}
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xref := buf.Len()
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fmt.Fprintf(&buf, "xref\n0 %d\n0000000000 65535 f \n", len(offsets)+1)
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for _, o := range offsets {
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fmt.Fprintf(&buf, "%010d 00000 n \n", o)
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}
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fmt.Fprintf(&buf, "trailer<</Size %d/Root 1 0 R>>\nstartxref\n%d\n%%%%EOF\n", len(offsets)+1, xref)
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return buf.Bytes()
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}
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