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Detect hyperref when generating previews

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If use of hyperref is detected, the postscript route is not attempted
(because we know it will fail) and the PDF route is directly chosen.
Also account for all upper case extensions for pdflatex image files.
This commit is contained in:
Enrico Forestieri 2015-04-29 17:29:27 +02:00
parent ca921fd650
commit 2bbf775c74
1 changed files with 10 additions and 4 deletions
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14
lib/scripts/lyxpreview2bitmap.py
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@ -220,12 +220,14 @@ def find_ps_pages(dvi_file):
# The output from dv2dt goes to stdout
dv2dt_status, dv2dt_output = run_command(dv2dt_call)
psliteral_re = re.compile("^special[1-4] [0-9]+ '(\"|ps:)")
pdffile_re = re.compile("^special[1-4] [0-9]+ 'PSfile=.*.(pdf|png|jpg)")
hyperref_re = re.compile("^special[1-4] [0-9]+ 'ps:.*/DEST pdfmark")
pdffile_re = re.compile("^special[1-4] [0-9]+ 'PSfile=.*.(pdf|png|jpg|jpeg|PDF|PNG|JPG|JPEG)")
# Parse the dtl file looking for PostScript specials and pdflatex files.
# Pages using PostScript specials or pdflatex files are recorded in
# ps_pages or pdf_pages, respectively, and then used to create a
# different LaTeX file for processing in legacy mode.
# If hyperref is detected, the corresponding page is recorded in pdf_pages.
page_has_ps = False
page_has_pdf = False
page_index = 0
@ -251,9 +253,13 @@ def find_ps_pages(dvi_file):
if psliteral_re.match(line) != None:
# Literal PostScript special detected!
page_has_ps = True
if pdffile_re.match(line) != None:
# If hyperref is detected, put this page on the pdf pages list
if hyperref_re.match(line) != None:
page_has_ps = False
page_has_pdf = True
else:
page_has_ps = True
elif pdffile_re.match(line) != None:
# Inclusion of pdflatex image file detected!
page_has_pdf = True