ZacharyZhang-NY
b7fca0146d
ElyDoc, ElyTable, ElyShow (LibreOfficeKit), ElyPDF (MuPDF), ElyTree (Git), ElyMark (Milkdown and CodeMirror in CEF). ElyMail and ElyAgent follow.
46 lines
2.0 KiB
Bash
Executable File
46 lines
2.0 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Builds MuPDF, renders a PDF page, extracts its text.
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set -euo pipefail
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root=$(cd "$(dirname "$0")/../.." && pwd)
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out=$root/engines/mupdf-build
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work=$(mktemp -d)
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trap 'rm -rf "$work"' EXIT
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fail() {
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echo "FAIL: $*" >&2
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exit 1
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}
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"$root/scripts/build-mupdf.sh" >"$work/build.log" 2>&1 || fail "build failed, see $work/build.log"
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python3 - "$work/hello.pdf" <<'PY'
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import sys
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stream = b"BT /F1 24 Tf 72 700 Td (Ely Office contract) Tj ET"
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objs = [
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b"<< /Type /Catalog /Pages 2 0 R >>",
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b"<< /Type /Pages /Kids [3 0 R] /Count 1 >>",
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b"<< /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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b"<< /Length %d >>\nstream\n%s\nendstream" % (len(stream), stream),
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b"<< /Type /Font /Subtype /Type1 /BaseFont /Helvetica >>",
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]
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body, offsets = b"%PDF-1.4\n", []
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for n, obj in enumerate(objs, 1):
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offsets.append(len(body))
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body += b"%d 0 obj\n%s\nendobj\n" % (n, obj)
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xref = len(body)
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body += b"xref\n0 %d\n0000000000 65535 f \n" % (len(objs) + 1)
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body += b"".join(b"%010d 00000 n \n" % o for o in offsets)
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body += b"trailer\n<< /Size %d /Root 1 0 R >>\nstartxref\n%d\n%%%%EOF\n" % (len(objs) + 1, xref)
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open(sys.argv[1], "wb").write(body)
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PY
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clang -O1 -I "$root/reference/mupdf/include" "$(dirname "$0")/mupdf_probe.c" \
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"$out/libmupdf.a" "$out/libmupdf-third.a" -lm -o "$work/probe" || fail "probe does not link"
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result=$("$work/probe" "$work/hello.pdf") || fail "probe failed: $result"
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grep -qx 'pages=1' <<<"$result" || fail "page count: $result"
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grep -qx 'bounds=612x792' <<<"$result" || fail "page bounds: $result"
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grep -qx 'pixmap=1224x1584' <<<"$result" || fail "pixmap size: $result"
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grep -qE '^dark=[1-9][0-9]*$' <<<"$result" || fail "page renders blank: $result"
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grep -qx 'text=Ely Office contract' <<<"$result" || fail "text extraction: $result"
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nm -u "$out/libmupdf-pkcs7.a" 2>/dev/null | grep -q 'PKCS7_' || fail "signing helper is a stub: no OpenSSL PKCS7 symbols"
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echo "mupdf: render, text and OpenSSL signing helper pass"
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