def main(argv):
# Parse and manipulate the command line arguments.
if len(argv) != 6 and len(argv) != 7:
error(usage(argv[0]))
output_format = string.lower(argv[1])
dir, latex_file = os.path.split(argv[2])
if len(dir) != 0:
os.chdir(dir)
dpi = string.atoi(argv[3])
fg_color = make_texcolor(argv[4], False)
bg_color = make_texcolor(argv[5], False)
bg_color_gr = make_texcolor(argv[5], True)
# External programs used by the script.
path = string.split(os.environ["PATH"], os.pathsep)
if len(argv) == 7:
latex = argv[6]
else:
latex = find_exe_or_terminate(["latex", "pplatex", "platex", "latex2e"], path)
# This can go once dvipng becomes widespread.
dvipng = find_exe(["dvipng"], path)
if dvipng == None:
# The data is input to legacy_conversion in as similar
# as possible a manner to that input to the code used in
# LyX 1.3.x.
vec = [ argv[0], argv[2], argv[3], argv[1], argv[4], argv[5], latex ]
return legacy_conversion(vec)
pngtopnm = ""
if output_format == "ppm":
pngtopnm = find_exe_or_terminate(["pngtopnm"], path)
# Move color information for PDF into the latex file.
if not color_pdf(latex_file, bg_color_gr):
error("Unable to move color info into the latex file")
# Compile the latex file.
latex_call = '%s "%s"' % (latex, latex_file)
latex_status, latex_stdout = run_command(latex_call)
if latex_status != None:
warning("%s failed to compile %s" \
% (os.path.basename(latex), latex_file))
if latex == "xelatex":
warning("Using XeTeX")
# FIXME: skip unnecessary dvips trial in legacy_conversion_step2
return legacy_conversion_step2(latex_file, dpi, output_format)
# Run the dvi file through dvipng.
dvi_file = latex_file_re.sub(".dvi", latex_file)
dvipng_call = '%s -Ttight -depth -height -D %d -fg "%s" -bg "%s" "%s"' \
% (dvipng, dpi, fg_color, bg_color, dvi_file)
dvipng_status, dvipng_stdout = run_command(dvipng_call)
if dvipng_status != None:
warning("%s failed to generate images from %s ... looking for PDF" \
% (os.path.basename(dvipng), dvi_file))
# FIXME: skip unnecessary dvips trial in legacy_conversion_step2
return legacy_conversion_step2(latex_file, dpi, output_format)
# Extract metrics info from dvipng_stdout.
metrics_file = latex_file_re.sub(".metrics", latex_file)
if not extract_metrics_info(dvipng_stdout, metrics_file):
error("Failed to extract metrics info from dvipng")
# Convert images to ppm format if necessary.
if output_format == "ppm":
convert_to_ppm_format(pngtopnm, latex_file_re.sub("", latex_file))
return 0
def main(argv):
# Parse and manipulate the command line arguments.
if len(argv) != 6 and len(argv) != 7:
error(usage(argv[0]))
output_format = string.lower(argv[1])
dir, latex_file = os.path.split(argv[2])
if len(dir) != 0:
os.chdir(dir)
dpi = string.atoi(argv[3])
fg_color = make_texcolor(argv[4], False)
bg_color = make_texcolor(argv[5], False)
fg_color_gr = make_texcolor(argv[4], True)
bg_color_gr = make_texcolor(argv[5], True)
# External programs used by the script.
if len(argv) == 7:
latex = argv[6]
else:
latex = find_exe_or_terminate(["latex", "pplatex", "platex", "latex2e"], path)
# Omit font size specification in latex file.
fix_latex_file(latex_file)
# This can go once dvipng becomes widespread.
dvipng = find_exe(["dvipng"], path)
if dvipng == None:
# The data is input to legacy_conversion in as similar
# as possible a manner to that input to the code used in
# LyX 1.3.x.
vec = [ argv[0], argv[2], argv[3], argv[1], argv[4], argv[5], latex ]
return legacy_conversion(vec)
pngtopnm = ""
if output_format == "ppm":
pngtopnm = find_exe_or_terminate(["pngtopnm"], path)
# Move color information for PDF into the latex file.
if not color_pdf(latex_file, bg_color_gr, fg_color_gr):
error("Unable to move color info into the latex file")
# Compile the latex file.
latex_call = '%s "%s"' % (latex, latex_file)
latex_status, latex_stdout = run_command(latex_call)
if latex_status != None:
warning("%s had problems compiling %s" \
% (os.path.basename(latex), latex_file))
if latex == "xelatex":
warning("Using XeTeX")
# FIXME: skip unnecessary dvips trial in legacy_conversion_step2
return legacy_conversion_step2(latex_file, dpi, output_format)
# The dvi output file name
dvi_file = latex_file_re.sub(".dvi", latex_file)
# If there's no DVI output, look for PDF and go to legacy or fail
if not os.path.isfile(dvi_file):
# No DVI, is there a PDF?
pdf_file = latex_file_re.sub(".pdf", latex_file)
if os.path.isfile(pdf_file):
warning("%s produced a PDF output, fallback to legacy." % \
(os.path.basename(latex)))
return legacy_conversion_step2(latex_file, dpi, output_format)
else:
error("No DVI or PDF output. %s failed." \
% (os.path.basename(latex)))
# Look for PS literals in DVI pages
# ps_pages: list of page indexes of pages containing PS literals
# page_count: total number of pages
# pages_parameter: parameter for dvipng to exclude pages with PostScript
(ps_pages, page_count, pages_parameter) = find_ps_pages(dvi_file)
# If all pages need PostScript, directly use the legacy method.
if len(ps_pages) == page_count:
vec = [argv[0], argv[2], argv[3], argv[1], argv[4], argv[5], latex]
return legacy_conversion(vec)
# Run the dvi file through dvipng.
dvipng_call = '%s -Ttight -depth -height -D %d -fg "%s" -bg "%s" %s "%s"' \
% (dvipng, dpi, fg_color, bg_color, pages_parameter, dvi_file)
dvipng_status, dvipng_stdout = run_command(dvipng_call)
if dvipng_status != None:
warning("%s failed to generate images from %s... fallback to legacy method" \
% (os.path.basename(dvipng), dvi_file))
# FIXME: skip unnecessary dvips trial in legacy_conversion_step2
return legacy_conversion_step2(latex_file, dpi, output_format)
# Extract metrics info from dvipng_stdout.
metrics_file = latex_file_re.sub(".metrics", latex_file)
dvipng_metrics = extract_metrics_info(dvipng_stdout)
# If some pages require PostScript pass them to legacy method
if len(ps_pages) > 0:
# Create a new LaTeX file just for the snippets needing
# the legacy method
legacy_latex_file = latex_file_re.sub("_legacy.tex", latex_file)
filter_pages(latex_file, legacy_latex_file, ps_pages)
# Pass the new LaTeX file to the legacy method
vec = [ argv[0], latex_file_re.sub("_legacy.tex", argv[2]), \
argv[3], argv[1], argv[4], argv[5], latex ]
legacy_metrics = legacy_conversion(vec, True)[1]
# Now we need to mix metrics data from dvipng and the legacy method
original_bitmap = latex_file_re.sub("%d." + output_format, legacy_latex_file)
destination_bitmap = latex_file_re.sub("%d." + output_format, latex_file)
# Join metrics from dvipng and legacy, and rename legacy bitmaps
join_metrics_and_rename(dvipng_metrics, legacy_metrics, ps_pages,
original_bitmap, destination_bitmap)
# Convert images to ppm format if necessary.
if output_format == "ppm":
convert_to_ppm_format(pngtopnm, latex_file_re.sub("", latex_file))
# Actually create the .metrics file
write_metrics_info(dvipng_metrics, metrics_file)
return (0, dvipng_metrics)
def main(argv):
# Parse and manipulate the command line arguments.
if len(argv) != 6 and len(argv) != 7:
error(usage(argv[0]))
output_format = string.lower(argv[1])
dir, latex_file = os.path.split(argv[2])
if len(dir) != 0:
os.chdir(dir)
dpi = string.atoi(argv[3])
fg_color = make_texcolor(argv[4], False)
bg_color = make_texcolor(argv[5], False)
fg_color_gr = make_texcolor(argv[4], True)
bg_color_gr = make_texcolor(argv[5], True)
# External programs used by the script.
path = string.split(os.environ["PATH"], os.pathsep)
if len(argv) == 7:
latex = argv[6]
else:
latex = find_exe_or_terminate(["latex", "pplatex", "platex", "latex2e"], path)
lilypond_book = find_exe_or_terminate(["lilypond-book"], path)
# Omit font size specification in latex file.
fix_latex_file(latex_file)
# Make a copy of the latex file
lytex_file = latex_file_re.sub(".lytex", latex_file)
shutil.copyfile(latex_file, lytex_file)
# Determine whether we need pdf or eps output
pdf_output = latex in ["lualatex", "pdflatex", "xelatex"]
# Preprocess the latex file through lilypond-book.
if pdf_output:
lytex_call = '%s --safe --pdf --latex-program=%s "%s"' % (lilypond_book, latex, lytex_file)
else:
lytex_call = '%s --safe --latex-program=%s "%s"' % (lilypond_book, latex, lytex_file)
lytex_status, lytex_stdout = run_command(lytex_call)
if lytex_status != None:
warning("%s failed to compile %s" \
% (os.path.basename(lilypond_book), lytex_file))
warning(lytex_stdout)
# This can go once dvipng becomes widespread.
dvipng = find_exe(["dvipng"], path)
if dvipng == None:
# The data is input to legacy_conversion in as similar
# as possible a manner to that input to the code used in
# LyX 1.3.x.
vec = [ argv[0], argv[2], argv[3], argv[1], argv[4], argv[5], latex ]
return legacy_conversion(vec)
pngtopnm = ""
if output_format == "ppm":
pngtopnm = find_exe_or_terminate(["pngtopnm"], path)
# Move color information for PDF into the latex file.
if not color_pdf(latex_file, bg_color_gr, fg_color_gr):
error("Unable to move color info into the latex file")
# Compile the latex file.
latex_call = '%s "%s"' % (latex, latex_file)
latex_status, latex_stdout = run_command(latex_call)
if latex_status != None:
warning("%s had problems compiling %s" \
% (os.path.basename(latex), latex_file))
warning(latex_stdout)
if latex == "xelatex":
warning("Using XeTeX")
# FIXME: skip unnecessary dvips trial in legacy_conversion_step2
return legacy_conversion_step2(latex_file, dpi, output_format)
# The dvi output file name
dvi_file = latex_file_re.sub(".dvi", latex_file)
# Check for PostScript specials in the dvi, badly supported by dvipng
# This is required for correct rendering of PSTricks and TikZ
dv2dt = find_exe_or_terminate(["dv2dt"], path)
dv2dt_call = '%s "%s"' % (dv2dt, 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:)")
# Parse the dtl file looking for PostScript specials.
# Pages using PostScript specials are recorded in ps_pages and then
# used to create a different LaTeX file for processing in legacy mode.
page_has_ps = False
page_index = 0
ps_pages = []
for line in dv2dt_output.split("\n"):
# New page
if line.startswith("bop"):
page_has_ps = False
page_index += 1
# End of page
if line.startswith("eop") and page_has_ps:
# We save in a list all the PostScript pages
ps_pages.append(page_index)
if psliteral_re.match(line) != None:
# Literal PostScript special detected!
page_has_ps = True
pages_parameter = ""
if len(ps_pages) == page_index:
# All pages need PostScript, so directly use the legacy method.
vec = [argv[0], argv[2], argv[3], argv[1], argv[4], argv[5], latex]
return legacy_conversion(vec)
elif len(ps_pages) > 0:
# Don't process Postscript pages with dvipng by selecting the
# wanted pages through the -pp parameter. E.g., dvipng -pp 4-12,14,64
pages_parameter = " -pp "
skip = True
last = -1
# Use page ranges, as a list of pages could exceed command line
# maximum length (especially under Win32)
for index in xrange(1, page_index + 1):
if (not index in ps_pages) and skip:
# We were skipping pages but current page shouldn't be skipped.
# Add this page to -pp, it could stay alone or become the
# start of a range.
pages_parameter += str(index)
# Save the starting index to avoid things such as "11-11"
last = index
# We're not skipping anymore
skip = False
elif (index in ps_pages) and (not skip):
# We weren't skipping but current page should be skipped
if last != index - 1:
# If the start index of the range is the previous page
# then it's not a range
pages_parameter += "-" + str(index - 1)
# Add a separator
pages_parameter += ","
# Now we're skipping
skip = True
# Remove the trailing separator
pages_parameter = pages_parameter.rstrip(",")
# We've to manage the case in which the last page is closing a range
if (not index in ps_pages) and (not skip) and (last != index):
pages_parameter += "-" + str(index)
# Run the dvi file through dvipng.
dvipng_call = '%s -Ttight -depth -height -D %d -fg "%s" -bg "%s" %s "%s"' \
% (dvipng, dpi, fg_color, bg_color, pages_parameter, dvi_file)
dvipng_status, dvipng_stdout = run_command(dvipng_call)
if dvipng_status != None:
warning("%s failed to generate images from %s ... looking for PDF" \
% (os.path.basename(dvipng), dvi_file))
# FIXME: skip unnecessary dvips trial in legacy_conversion_step2
return legacy_conversion_step2(latex_file, dpi, output_format)
if len(ps_pages) > 0:
# Some pages require PostScript.
# Create a new LaTeX file just for the snippets needing
# the legacy method
original_latex = open(latex_file, "r")
legacy_latex_file = latex_file_re.sub("_legacy.tex", latex_file)
legacy_latex = open(legacy_latex_file, "w")
page_index = 0
skip_page = False
for line in original_latex:
if line.startswith("\\begin{preview}"):
page_index += 1
# Skips all pages processed by dvipng
skip_page = page_index not in ps_pages
if not skip_page:
legacy_latex.write(line)
if line.startswith("\\end{preview}"):
skip_page = False
legacy_latex.close()
original_latex.close()
# Pass the new LaTeX file to the legacy method
vec = [ argv[0], latex_file_re.sub("_legacy.tex", argv[2]), \
argv[3], argv[1], argv[4], argv[5], latex ]
legacy_conversion(vec, True)
# Now we need to mix metrics data from dvipng and the legacy method
metrics_file = latex_file_re.sub(".metrics", latex_file)
dvipng_metrics = extract_metrics_info(dvipng_stdout)
legacy_metrics = legacy_extract_metrics_info(latex_file_re.sub("_legacy.log", latex_file))
# Check whether a page is present in dvipng_metrics, otherwise
# add it getting the metrics from legacy_metrics
legacy_index = -1;
for i in range(page_index):
# If we exceed the array bounds or the dvipng_metrics doesn't
# match the current one, this page belongs to the legacy method
if (i > len(dvipng_metrics) - 1) or (dvipng_metrics[i][0] != str(i + 1)):
legacy_index += 1
# Add this metric from the legacy output
dvipng_metrics.insert(i, (str(i + 1), legacy_metrics[legacy_index][1]))
# Legacy output filename
legacy_output = os.path.join(dir, latex_file_re.sub("_legacy%s.%s" %
(legacy_metrics[legacy_index][0], output_format), latex_file))
# Check whether legacy method actually created the file
if os.path.isfile(legacy_output):
# Rename the file by removing the "_legacy" suffix
# and adjusting the index
bitmap_output = os.path.join(dir, latex_file_re.sub("%s.%s" %
(str(i + 1), output_format), latex_file))
os.rename(legacy_output, bitmap_output)
# Actually create the .metrics file
write_metrics_info(dvipng_metrics, metrics_file)
else:
# Extract metrics info from dvipng_stdout.
# In this case we just used dvipng, so no special metrics
# handling is needed.
metrics_file = latex_file_re.sub(".metrics", latex_file)
write_metrics_info(extract_metrics_info(dvipng_stdout), metrics_file)
# Convert images to ppm format if necessary.
if output_format == "ppm":
convert_to_ppm_format(pngtopnm, latex_file_re.sub("", latex_file))
return 0
