412821ec56
- jz_bm_material_file_texts caches the pdftotext output per file - the River job jz.bm.extract_material_text extracts and resyncs - the management multipart attach queues it inside its transaction - file_texts in the document and a file snippet with its name
43 lines
1.4 KiB
Go
43 lines
1.4 KiB
Go
// Package pdftest builds small PDFs for the jz.bm tests. Only tests import
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// it.
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package pdftest
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import (
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"bytes"
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"fmt"
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"strings"
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)
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// OnePage is a one-page PDF that shows text in the base-14 Helvetica font,
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// so pdftotext extracts it without any embedded font. text must be ASCII
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// and hold no parentheses or backslashes. The xref offsets are computed from
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// the objects as written.
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func OnePage(text string) []byte {
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if strings.ContainsAny(text, "()\\") {
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panic("pdftest: text holds a parenthesis or a backslash")
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}
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stream := "BT /F1 24 Tf 72 700 Td (" + text + ") Tj ET"
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objects := []string{
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"<< /Type /Catalog /Pages 2 0 R >>",
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"<< /Type /Pages /Kids [3 0 R] /Count 1 >>",
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"<< /Type /Page /Parent 2 0 R /MediaBox [0 0 612 792] /Contents 4 0 R /Resources << /Font << /F1 5 0 R >> >> >>",
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fmt.Sprintf("<< /Length %d >>\nstream\n%s\nendstream", len(stream), stream),
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"<< /Type /Font /Subtype /Type1 /BaseFont /Helvetica >>",
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}
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var b bytes.Buffer
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b.WriteString("%PDF-1.4\n")
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offsets := make([]int, len(objects))
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for i, obj := range objects {
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offsets[i] = b.Len()
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fmt.Fprintf(&b, "%d 0 obj\n%s\nendobj\n", i+1, obj)
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}
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xref := b.Len()
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fmt.Fprintf(&b, "xref\n0 %d\n", len(objects)+1)
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b.WriteString("0000000000 65535 f \n")
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for _, off := range offsets {
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fmt.Fprintf(&b, "%010d 00000 n \n", off)
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}
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fmt.Fprintf(&b, "trailer\n<< /Size %d /Root 1 0 R >>\nstartxref\n%d\n%%%%EOF\n", len(objects)+1, xref)
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return b.Bytes()
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}
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