openpower/pandoc_img.py

   1 #!/usr/bin/env python3
   2
   3 import os
   4 import subprocess
   5 from pandocfilters import (toJSONFilter, RawInline, Space, Str, walk, Image,
   6                            Link)
   7
   8 """
   9 Pandoc filter for Markdown that converts most endnotes into
  10 Pandoc's inline notes. If input notes had multiple paragraphs,
  11 the paragraphs are joined by a space. But if an input note
  12 had any blocks other than paragraphs, the note is left as is.
  13 """
  14
  15 #inkscape -z sv/bridge_phy.svg --export-png=bridge.png
  16 out = open("/tmp/log.txt", "w")
  17
  18 def query(k, v, f, meta):
  19     global inlines
  20     if k == 'BlockQuote':
  21         inlines.append(v)
  22     elif isinstance(v, list):
  23         if inlines and k == 'Para':
  24             inlines.append(Space())
  25         inlines.extend(v)
  26     return v
  27
  28 def inlinenotes(k, v, f, meta):
  29     out.write("k v f meta %s %s %s %s\n" % \
  30         (repr(k), repr(v), repr(f), repr(meta)))
  31     global inlines
  32     inlines = []
  33     if k == u'Image' and f == 'latex':
  34         imgname = v[2][0]
  35         out.write("     image %s\n" % (imgname))
  36         # HACK! works only relative to openpower directory!
  37         if imgname.startswith("/"):
  38             imgname = ".." + imgname
  39         png = imgname.replace(".svg", ".png")
  40         png = os.path.split(png)[1]
  41         png = "tex_out/%s" % png
  42         subprocess.run(["inkscape", "-z", "-C", imgname,
  43                         "--export-png=%s" % png],
  44                         stdout=subprocess.PIPE)
  45         v[2][0] = png
  46         return Image(*v)
  47     if k == 'Str' and f == 'latex':
  48         # link page
  49         if v.startswith("[[") and v.endswith("]]"):
  50             link = v[2:-2]
  51             if '|' in link:
  52                 link, ref = link.split("|")
  53                 return Link(['', [], []],
  54                             [Str(link)],
  55                             [ref, ''])
  56             out.write("     link %s\n" % link)
  57             lookups = {'sv/overview': 'Overview Chapter',
  58                        'sv/svp64': 'SVP64 Chapter',
  59                        'svp64/appendix': 'SVP64 Appendix',
  60                       }
  61             if link in lookups:
  62                 out.write("     found %s\n" % lookups[link])
  63                 return Link(['', [], []],
  64                             [Str(lookups[link])],
  65                             ['#%s' % link, ''])
  66     if k == 'Link':
  67         out.write("     link type %s\n" % \
  68             (type(v[1][0])))
  69
  70
  71 if __name__ == "__main__":
  72     toJSONFilter(inlinenotes)