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Pandoc filter to create PDF files from SVG
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#! /usr/bin/env python | |
""" | |
Pandoc filter to convert svg files to pdf as suggested at: | |
https://github.com/jgm/pandoc/issues/265#issuecomment-27317316 | |
rsvg-convert or inkscape must be installed | |
""" | |
__author__ = "Jerome Robert" | |
import mimetypes | |
import subprocess | |
import os | |
import sys | |
import shutil | |
from pandocfilters import toJSONFilter, Str, Para, Image | |
fmt_to_option = { | |
"latex": ("--export-pdf", "pdf"), | |
"beamer": ("--export-pdf", "pdf"), | |
#use PNG because EMF and WMF break transparency | |
"docx": ("--export-png", "png")} | |
def svg_to_any(key, value, fmt, meta): | |
if key == 'Image': | |
if len(value) == 2: | |
# before pandoc 1.16 | |
alt, [src, title] = value | |
attrs = None | |
else: | |
attrs, alt, [src, title] = value | |
mimet, _ = mimetypes.guess_type(src) | |
option = fmt_to_option.get(fmt) | |
if mimet == 'image/svg+xml' and option: | |
base_name, _ = os.path.splitext(src) | |
eps_name = base_name + "." + option[1] | |
try: | |
mtime = os.path.getmtime(eps_name) | |
except OSError: | |
mtime = -1 | |
if mtime < os.path.getmtime(src): | |
if shutil.which('inkscape') is not None: | |
cmd_line = ['inkscape', option[0], eps_name, src] | |
elif shutil.which('rsvg-convert') is not None: | |
cmd_line = [ | |
'rsvg-convert', '--format=' + option[1], | |
'--output=' + eps_name, src] | |
else: | |
raise Exception('inkscape nor rsvg-convert installed') | |
sys.stderr.write("Running %s\n" % " ".join(cmd_line)) | |
subprocess.call(cmd_line, stdout=sys.stderr.fileno()) | |
if attrs: | |
return Image(attrs, alt, [eps_name, title]) | |
else: | |
return Image(alt, [eps_name, title]) | |
if __name__ == "__main__": | |
toJSONFilter(svg_to_any) |
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