def legacy_latex_file(latex_file, fg_color, bg_color):
use_preview_re = re.compile(r"\s*\\usepackage\[([^]]+)\]{preview}")
fg_color_gr = make_texcolor(fg_color, True)
bg_color_gr = make_texcolor(bg_color, True)
tmp = mkstemp()
success = 0
try:
f = open(latex_file, 'r')
except:
# Unable to open the file, but do nothing here because
# the calling function will act on the value of 'success'.
warning('Warning in legacy_latex_file! Unable to open "%s"' %
latex_file)
warning( ` sys.exc_type ` + ',' + ` sys.exc_value `)
for line in f.readlines():
if success:
tmp.write(line)
continue
match = use_preview_re.match(line)
if match == None:
tmp.write(line)
continue
success = 1
# Package order: color should be loaded before preview
# Preview options: add the options lyx and tightpage
tmp.write(r"""
\usepackage{color}
\definecolor{fg}{rgb}{%s}
\definecolor{bg}{rgb}{%s}
\pagecolor{bg}
\usepackage[%s,tightpage]{preview}
\makeatletter
\def\t@a{cmr}
\if\f@family\t@a
\IfFileExists{lmodern.sty}{\usepackage{lmodern}}{\usepackage{ae,aecompl}}
\fi
\g@addto@macro\preview{\begingroup\color{bg}\special{ps::clippath fill}\color{fg}}
\g@addto@macro\endpreview{\endgroup}
\makeatother
""" % (fg_color_gr, bg_color_gr, match.group(1)))
if success:
copyfileobj(tmp, open(latex_file, "wb"), 1)
return success
def legacy_latex_file(latex_file, fg_color, bg_color):
use_preview_re = re.compile(r"\s*\\usepackage\[([^]]+)\]{preview}")
fg_color_gr = make_texcolor(fg_color, True)
bg_color_gr = make_texcolor(bg_color, True)
tmp = mkstemp()
success = 0
try:
f = open(latex_file, 'r')
except:
# Unable to open the file, but do nothing here because
# the calling function will act on the value of 'success'.
warning('Warning in legacy_latex_file! Unable to open "%s"' % latex_file)
warning(`sys.exc_type` + ',' + `sys.exc_value`)
for line in f.readlines():
if success:
tmp.write(line)
continue
match = use_preview_re.match(line)
if match == None:
tmp.write(line)
continue
success = 1
# Package order: color should be loaded before preview
# Preview options: add the options lyx and tightpage
tmp.write(r"""
\usepackage{color}
\definecolor{fg}{rgb}{%s}
\definecolor{bg}{rgb}{%s}
\pagecolor{bg}
\usepackage[%s,tightpage]{preview}
\makeatletter
\def\t@a{cmr}
\if\f@family\t@a
\IfFileExists{lmodern.sty}{\usepackage{lmodern}}{\usepackage{ae,aecompl}}
\fi
\g@addto@macro\preview{\begingroup\color{bg}\special{ps::clippath fill}\color{fg}}
\g@addto@macro\endpreview{\endgroup}
\makeatother
""" % (fg_color_gr, bg_color_gr, match.group(1)))
if success:
copyfileobj(tmp, open(latex_file,"wb"), 1)
return success
def legacy_conversion(argv):
latex_commands = ["latex", "pplatex", "platex", "latex2e"]
# Parse and manipulate the command line arguments.
if len(argv) == 7:
latex_commands = [argv[6]]
elif len(argv) != 6:
error(usage(argv[0]))
dir, latex_file = os.path.split(argv[1])
if len(dir) != 0:
os.chdir(dir)
dpi = string.atoi(argv[2])
output_format = argv[3]
fg_color = argv[4]
bg_color = argv[5]
bg_color_gr = make_texcolor(argv[5], True)
# External programs used by the script.
path = string.split(os.environ["PATH"], os.pathsep)
latex = find_exe_or_terminate(latex_commands, path)
# Move color information into the latex file.
if not legacy_latex_file(latex_file, fg_color, bg_color, 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:
error("%s failed to compile %s" \
% (os.path.basename(latex), latex_file))
return legacy_conversion_step2(latex_file, dpi, output_format)
# Echo the settings
progress("Starting %s..." % script_name)
progress("Output format: %s" % output_format)
progress("Foreground color: %s" % fg_color)
progress("Background color: %s" % bg_color)
progress("Resolution (dpi): %s" % dpi)
progress("File to process: %s" % input_path)
# Check for the input file
if not os.path.exists(input_path):
error('File "%s" not found.' % input_path)
if len(dir) != 0:
os.chdir(dir)
fg_color_dvipng = make_texcolor(fg_color, False)
bg_color_dvipng = make_texcolor(bg_color, False)
# External programs used by the script.
latex = find_exe_or_terminate(latex or latex_commands)
bibtex = find_exe(bibtex or bibtex_commands)
if lilypond:
lilypond_book = find_exe_or_terminate(lilypond_book or
["lilypond-book --safe"])
# These flavors of latex are known to produce pdf output
pdf_output = latex in pdflatex_commands
progress("Latex command: %s" % latex)
progress("Latex produces pdf output: %s" % pdf_output)
progress("Bibtex command: %s" % bibtex)
def legacy_latex_file(latex_file, fg_color, bg_color):
use_polyglossia_re = re.compile(b"\\s*\\\\usepackage{polyglossia}")
use_preview_re = re.compile(b"\\s*\\\\usepackage\\[([^]]+)\\]{preview}")
fg_color_gr = make_texcolor(fg_color, True)
bg_color_gr = make_texcolor(bg_color, True)
tmp = tempfile.TemporaryFile()
success = 0
try:
f = open(latex_file, 'rb')
except:
# Unable to open the file, but do nothing here because
# the calling function will act on the value of 'success'.
warning('Warning in legacy_latex_file! Unable to open "%s"' % latex_file)
warning(repr(sys.exc_info()[0]) + ',' + repr(sys.exc_info()[1]))
polyglossia = False
for line in f.readlines():
if success:
tmp.write(line)
continue
match = use_preview_re.match(line)
polymatch = use_polyglossia_re.match(line)
# Package order:
# * if polyglossia is used, we need to load color before that
# (also, we do not have to load lmodern)
# * else, color should be loaded before preview
if match == None:
if polymatch == None:
tmp.write(line)
continue
else:
tmp.write(b"""
\\usepackage{color}
\\definecolor{fg}{rgb}{%s}
\\definecolor{bg}{rgb}{%s}
\\pagecolor{bg}
\\usepackage{polyglossia}
""" % (fg_color_gr, bg_color_gr))
polyglossia = True
continue
success = 1
# Preview options: add the options lyx and tightpage
previewopts = match.group(1)
if not polyglossia:
tmp.write(b"""
\\usepackage{color}
\\definecolor{fg}{rgb}{%s}
\\definecolor{bg}{rgb}{%s}
\\pagecolor{bg}
\\usepackage[%s,tightpage]{preview}
\\makeatletter
\\def\\t@a{cmr}
\\if\\f@family\\t@a
\\IfFileExists{lmodern.sty}{\\usepackage{lmodern}}{\\usepackage{ae,aecompl}}
\\fi
\\g@addto@macro\\preview{\\begingroup\\color{bg}\\special{ps::clippath fill}\\color{fg}}
\\g@addto@macro\\endpreview{\\endgroup}
\\makeatother
""" % (fg_color_gr, bg_color_gr, previewopts))
else:
tmp.write(b"""
\\usepackage[%s,tightpage]{preview}
\\makeatletter
\\g@addto@macro\\preview{\\begingroup\\color{bg}\\special{ps::clippath fill}\\color{fg}}
\\g@addto@macro\\endpreview{\\endgroup}
\\makeatother
""" % previewopts)
if success:
copyfileobj(tmp, open(latex_file,"wb"), 1)
return success
def main(argv):
# Set defaults.
dpi = 128
fg_color = "000000"
bg_color = "ffffff"
bibtex = None
latex = None
lilypond = False
lilypond_book = None
output_format = "png"
script_name = argv[0]
# Parse and manipulate the command line arguments.
try:
(opts, args) = getopt.gnu_getopt(argv[1:], "dhv", ["bibtex=", "bg=",
"debug", "dpi=", "fg=", "help", "latex=", "lilypond",
"lilypond-book=", "png", "ppm", "verbose"])
except getopt.GetoptError as err:
error("%s\n%s" % (err, usage(script_name)))
opts.reverse()
for opt, val in opts:
if opt in ("-h", "--help"):
print(usage(script_name))
sys.exit(0)
elif opt == "--bibtex":
bibtex = [val]
elif opt == "--bg":
bg_color = val
elif opt in ("-d", "--debug"):
import lyxpreview_tools
lyxpreview_tools.debug = True
elif opt == "--dpi":
try:
dpi = int(val)
except:
error("Cannot convert %s to an integer value" % val)
elif opt == "--fg":
fg_color = val
elif opt == "--latex":
latex = [val]
elif opt == "--lilypond":
lilypond = True
elif opt == "--lilypond-book":
lilypond_book = [val]
elif opt in ("--png", "--ppm"):
output_format = opt[2:]
elif opt in ("-v", "--verbose"):
import lyxpreview_tools
lyxpreview_tools.verbose = True
# Determine input file
if len(args) != 1:
err = "A single input file is required, %s given" % (len(args) or "none")
error("%s\n%s" % (err, usage(script_name)))
input_path = args[0]
dir, latex_file = os.path.split(input_path)
# Check for the input file
if not os.path.exists(input_path):
error('File "%s" not found.' % input_path)
if len(dir) != 0:
os.chdir(dir)
if lyxpreview_tools.verbose:
f_out = open('debug.txt', 'a')
sys.stdout = f_out
sys.stderr = f_out
# Echo the settings
progress("Running Python %s" % str(sys.version_info[:3]))
progress("Starting %s..." % script_name)
if os.name == "nt":
progress("Use win32_modules: %d" % lyxpreview_tools.use_win32_modules)
progress("Output format: %s" % output_format)
progress("Foreground color: %s" % fg_color)
progress("Background color: %s" % bg_color)
progress("Resolution (dpi): %s" % dpi)
progress("File to process: %s" % input_path)
# For python > 2 convert strings to bytes
if not PY2:
fg_color = bytes(fg_color, 'ascii')
bg_color = bytes(bg_color, 'ascii')
fg_color_dvipng = make_texcolor(fg_color, False)
bg_color_dvipng = make_texcolor(bg_color, False)
# For python > 2 convert bytes to string
if not PY2:
fg_color_dvipng = fg_color_dvipng.decode('ascii')
bg_color_dvipng = bg_color_dvipng.decode('ascii')
# External programs used by the script.
latex = find_exe_or_terminate(latex or latex_commands)
bibtex = find_exe(bibtex or bibtex_commands)
if lilypond:
lilypond_book = find_exe_or_terminate(lilypond_book or
["lilypond-book --safe"])
# These flavors of latex are known to produce pdf output
pdf_output = latex in pdflatex_commands
progress("Latex command: %s" % latex)
progress("Latex produces pdf output: %s" % pdf_output)
progress("Bibtex command: %s" % bibtex)
progress("Lilypond-book command: %s" % lilypond_book)
progress("Preprocess through lilypond-book: %s" % lilypond)
progress("Altering the latex file for font size and colors")
# Make sure that multiple defined macros and the microtype package
# don't cause issues in the latex file.
fix_latex_file(latex_file, pdf_output)
if lilypond:
progress("Preprocess the latex file through %s" % lilypond_book)
if pdf_output:
lilypond_book += " --pdf"
lilypond_book += " --latex-program=%s" % latex.split()[0]
# Make a copy of the latex file
lytex_file = latex_file_re.sub(".lytex", latex_file)
shutil.copyfile(latex_file, lytex_file)
# Preprocess the latex file through lilypond-book.
lytex_status, lytex_stdout = run_tex(lilypond_book, lytex_file)
if pdf_output:
progress("Using the legacy conversion method (PDF support)")
return legacy_conversion_step1(latex_file, dpi, output_format, fg_color,
bg_color, latex, pdf_output)
# This can go once dvipng becomes widespread.
dvipng = find_exe(["dvipng"])
if dvipng == None:
progress("Using the legacy conversion method (dvipng not found)")
return legacy_conversion_step1(latex_file, dpi, output_format, fg_color,
bg_color, latex, pdf_output)
dv2dt = find_exe(["dv2dt"])
if dv2dt == None:
progress("Using the legacy conversion method (dv2dt not found)")
return legacy_conversion_step1(latex_file, dpi, output_format, fg_color,
bg_color, latex, pdf_output)
pngtopnm = ""
if output_format == "ppm":
pngtopnm = find_exe(["pngtopnm"])
if pngtopnm == None:
progress("Using the legacy conversion method (pngtopnm not found)")
return legacy_conversion_step1(latex_file, dpi, output_format,
fg_color, bg_color, latex, pdf_output)
# Compile the latex file.
error_pages = []
latex_status, latex_stdout = run_latex(latex, latex_file, bibtex)
latex_log = latex_file_re.sub(".log", latex_file)
if latex_status:
progress("Will try to recover from %s failure" % latex)
error_pages = check_latex_log(latex_log)
# 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):
progress("%s produced a PDF output, fallback to legacy." \
% (os.path.basename(latex)))
progress("Using the legacy conversion method (PDF support)")
return legacy_conversion_step1(latex_file, dpi, output_format,
fg_color, bg_color, latex, True)
else:
error("No DVI or PDF output. %s failed." \
% (os.path.basename(latex)))
# Look for PS literals or inclusion of pdflatex files in DVI pages
# ps_pages: list of indexes of pages containing PS literals
# pdf_pages: list of indexes of pages requiring running pdflatex
# page_count: total number of pages
# pages_parameter: parameter for dvipng to exclude pages with PostScript
(ps_pages, pdf_pages, page_count, pages_parameter) = find_ps_pages(dvi_file)
# If all pages need PostScript or pdflatex, directly use the legacy method.
if len(ps_pages) == page_count:
progress("Using the legacy conversion method (PostScript support)")
return legacy_conversion_step1(latex_file, dpi, output_format, fg_color,
bg_color, latex, pdf_output)
elif len(pdf_pages) == page_count:
progress("Using the legacy conversion method (PDF support)")
return legacy_conversion_step1(latex_file, dpi, output_format, fg_color,
bg_color, "pdflatex", True)
# Retrieve resolution
resolution = extract_resolution(latex_log, dpi)
# Run the dvi file through dvipng.
dvipng_call = '%s -Ttight -depth -height -D %d -fg "%s" -bg "%s" %s "%s"' \
% (dvipng, resolution, fg_color_dvipng, bg_color_dvipng, pages_parameter, dvi_file)
dvipng_status, dvipng_stdout = run_command(dvipng_call)
if dvipng_status:
warning("%s failed to generate images from %s... fallback to legacy method" \
% (os.path.basename(dvipng), dvi_file))
progress("Using the legacy conversion method (dvipng failed)")
return legacy_conversion_step1(latex_file, dpi, output_format, fg_color,
bg_color, latex, pdf_output)
# 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
progress("Pages %s include postscript specials" % ps_pages)
progress("Using the legacy conversion method (PostScript support)")
legacy_status, legacy_metrics = legacy_conversion_step1(legacy_latex_file,
dpi, output_format, fg_color, bg_color, latex, pdf_output, True)
# 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)
# If some pages require running pdflatex pass them to legacy method
if len(pdf_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, pdf_pages)
# Pass the new LaTeX file to the legacy method
progress("Pages %s require processing with pdflatex" % pdf_pages)
progress("Using the legacy conversion method (PDF support)")
legacy_status, legacy_metrics = legacy_conversion_step1(legacy_latex_file,
dpi, output_format, fg_color, bg_color, "pdflatex", True, True)
# 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, pdf_pages,
original_bitmap, destination_bitmap)
# Invalidate metrics for pages that produced errors
if len(error_pages) > 0:
error_count = 0
for index in error_pages:
if index not in ps_pages and index not in pdf_pages:
dvipng_metrics.pop(index - 1)
dvipng_metrics.insert(index - 1, (index, -1.0))
error_count += 1
if error_count:
warning("Failed to produce %d preview snippet(s)" % error_count)
# 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)
# Echo the settings
progress("Starting %s..." % script_name)
progress("Output format: %s" % output_format)
progress("Foreground color: %s" % fg_color)
progress("Background color: %s" % bg_color)
progress("Resolution (dpi): %s" % dpi)
progress("File to process: %s" % input_path)
# Check for the input file
if not os.path.exists(input_path):
error('File "%s" not found.' % input_path)
if len(dir) != 0:
os.chdir(dir)
fg_color_dvipng = make_texcolor(fg_color, False)
bg_color_dvipng = make_texcolor(bg_color, False)
# External programs used by the script.
latex = find_exe_or_terminate(latex or latex_commands)
bibtex = find_exe(bibtex or bibtex_commands)
if lilypond:
lilypond_book = find_exe_or_terminate(lilypond_book or
["lilypond-book --safe"])
# These flavors of latex are known to produce pdf output
pdf_output = latex in pdflatex_commands
progress("Latex command: %s" % latex)
progress("Latex produces pdf output: %s" % pdf_output)
progress("Bibtex command: %s" % bibtex)
def main(argv):
# Set defaults.
dpi = 128
fg_color = "000000"
bg_color = "ffffff"
bibtex = None
latex = None
lilypond = False
lilypond_book = None
output_format = "png"
script_name = argv[0]
# Parse and manipulate the command line arguments.
try:
(opts, args) = getopt.gnu_getopt(argv[1:], "dhv", [
"bibtex=", "bg=", "debug", "dpi=", "fg=", "help", "latex=",
"lilypond", "lilypond-book=", "png", "ppm", "verbose"
])
except getopt.GetoptError as err:
error("%s\n%s" % (err, usage(script_name)))
opts.reverse()
for opt, val in opts:
if opt in ("-h", "--help"):
print(usage(script_name))
sys.exit(0)
elif opt == "--bibtex":
bibtex = [val]
elif opt == "--bg":
bg_color = val
elif opt in ("-d", "--debug"):
lyxpreview_tools.debug = True
elif opt == "--dpi":
try:
dpi = int(val)
except:
error("Cannot convert %s to an integer value" % val)
elif opt == "--fg":
fg_color = val
elif opt == "--latex":
latex = [val]
elif opt == "--lilypond":
lilypond = True
elif opt == "--lilypond-book":
lilypond_book = [val]
elif opt in ("--png", "--ppm"):
output_format = opt[2:]
elif opt in ("-v", "--verbose"):
lyxpreview_tools.verbose = True
# Determine input file
if len(args) != 1:
err = "A single input file is required, %s given" % (len(args)
or "none")
error("%s\n%s" % (err, usage(script_name)))
input_path = args[0]
dir, latex_file = os.path.split(input_path)
# Check for the input file
if not os.path.exists(input_path):
error('File "%s" not found.' % input_path)
if len(dir) != 0:
os.chdir(dir)
if lyxpreview_tools.verbose:
f_out = open('verbose.txt', 'a')
sys.stdout = f_out
sys.stderr = f_out
# Echo the settings
progress("Running Python %s" % str(sys.version_info[:3]))
progress("Starting %s..." % script_name)
if os.name == "nt":
progress("Use win32_modules: %d" % lyxpreview_tools.use_win32_modules)
progress("Output format: %s" % output_format)
progress("Foreground color: %s" % fg_color)
progress("Background color: %s" % bg_color)
progress("Resolution (dpi): %s" % dpi)
progress("File to process: %s" % input_path)
# For python > 2 convert strings to bytes
if not PY2:
fg_color = bytes(fg_color, 'ascii')
bg_color = bytes(bg_color, 'ascii')
fg_color_dvipng = make_texcolor(fg_color, False)
bg_color_dvipng = make_texcolor(bg_color, False)
# For python > 2 convert bytes to string
if not PY2:
fg_color_dvipng = fg_color_dvipng.decode('ascii')
bg_color_dvipng = bg_color_dvipng.decode('ascii')
# External programs used by the script.
latex = find_exe_or_terminate(latex or latex_commands)
bibtex = find_exe(bibtex or bibtex_commands)
if lilypond:
lilypond_book = find_exe_or_terminate(lilypond_book
or ["lilypond-book --safe"])
# These flavors of latex are known to produce pdf output
pdf_output = latex in pdflatex_commands
progress("Latex command: %s" % latex)
progress("Latex produces pdf output: %s" % pdf_output)
progress("Bibtex command: %s" % bibtex)
progress("Lilypond-book command: %s" % lilypond_book)
progress("Preprocess through lilypond-book: %s" % lilypond)
progress("Altering the latex file for font size and colors")
# Make sure that multiple defined macros and the microtype package
# don't cause issues in the latex file.
fix_latex_file(latex_file, pdf_output)
if lilypond:
progress("Preprocess the latex file through %s" % lilypond_book)
if pdf_output:
lilypond_book += " --pdf"
lilypond_book += " --latex-program=%s" % latex.split()[0]
# Make a copy of the latex file
lytex_file = latex_file_re.sub(".lytex", latex_file)
shutil.copyfile(latex_file, lytex_file)
# Preprocess the latex file through lilypond-book.
lytex_status, lytex_stdout = run_tex(lilypond_book, lytex_file)
if pdf_output:
progress("Using the legacy conversion method (PDF support)")
return legacy_conversion_step1(latex_file, dpi, output_format,
fg_color, bg_color, latex, pdf_output)
# This can go once dvipng becomes widespread.
dvipng = find_exe(["dvipng"])
if dvipng == None:
progress("Using the legacy conversion method (dvipng not found)")
return legacy_conversion_step1(latex_file, dpi, output_format,
fg_color, bg_color, latex, pdf_output)
dv2dt = find_exe(["dv2dt"])
if dv2dt == None:
progress("Using the legacy conversion method (dv2dt not found)")
return legacy_conversion_step1(latex_file, dpi, output_format,
fg_color, bg_color, latex, pdf_output)
pngtopnm = ""
if output_format == "ppm":
pngtopnm = find_exe(["pngtopnm"])
if pngtopnm == None:
progress("Using the legacy conversion method (pngtopnm not found)")
return legacy_conversion_step1(latex_file, dpi, output_format,
fg_color, bg_color, latex,
pdf_output)
# Compile the latex file.
error_pages = []
latex_status, latex_stdout = run_latex(latex, latex_file, bibtex)
latex_log = latex_file_re.sub(".log", latex_file)
if latex_status:
progress("Will try to recover from %s failure" % latex)
error_pages = check_latex_log(latex_log)
# 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):
progress("%s produced a PDF output, fallback to legacy." \
% (os.path.basename(latex)))
progress("Using the legacy conversion method (PDF support)")
return legacy_conversion_step1(latex_file, dpi, output_format,
fg_color, bg_color, latex, True)
else:
error("No DVI or PDF output. %s failed." \
% (os.path.basename(latex)))
# Look for PS literals or inclusion of pdflatex files in DVI pages
# ps_pages: list of indexes of pages containing PS literals
# pdf_pages: list of indexes of pages requiring running pdflatex
# page_count: total number of pages
# pages_parameter: parameter for dvipng to exclude pages with PostScript
(ps_pages, pdf_pages, page_count,
pages_parameter) = find_ps_pages(dvi_file)
# If all pages need PostScript or pdflatex, directly use the legacy method.
if len(ps_pages) == page_count:
progress("Using the legacy conversion method (PostScript support)")
return legacy_conversion_step1(latex_file, dpi, output_format,
fg_color, bg_color, latex, pdf_output)
elif len(pdf_pages) == page_count:
progress("Using the legacy conversion method (PDF support)")
return legacy_conversion_step1(latex_file, dpi, output_format,
fg_color, bg_color, "pdflatex", True)
# Retrieve resolution
resolution = extract_resolution(latex_log, dpi)
# Run the dvi file through dvipng.
dvipng_call = '%s -Ttight -depth -height -D %d -fg "%s" -bg "%s" %s "%s"' \
% (dvipng, resolution, fg_color_dvipng, bg_color_dvipng, pages_parameter, dvi_file)
dvipng_status, dvipng_stdout = run_command(dvipng_call)
if dvipng_status:
warning("%s failed to generate images from %s... fallback to legacy method" \
% (os.path.basename(dvipng), dvi_file))
progress("Using the legacy conversion method (dvipng failed)")
return legacy_conversion_step1(latex_file, dpi, output_format,
fg_color, bg_color, latex, pdf_output)
# 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
progress("Pages %s include postscript specials" % ps_pages)
progress("Using the legacy conversion method (PostScript support)")
legacy_status, legacy_metrics = legacy_conversion_step1(
legacy_latex_file, dpi, output_format, fg_color, bg_color, latex,
pdf_output, True)
# 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)
# If some pages require running pdflatex pass them to legacy method
if len(pdf_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, pdf_pages)
# Pass the new LaTeX file to the legacy method
progress("Pages %s require processing with pdflatex" % pdf_pages)
progress("Using the legacy conversion method (PDF support)")
legacy_status, legacy_metrics = legacy_conversion_step1(
legacy_latex_file, dpi, output_format, fg_color, bg_color,
"pdflatex", True, True)
# 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, pdf_pages,
original_bitmap, destination_bitmap)
# Invalidate metrics for pages that produced errors
if len(error_pages) > 0:
error_count = 0
for index in error_pages:
if index not in ps_pages and index not in pdf_pages:
dvipng_metrics.pop(index - 1)
dvipng_metrics.insert(index - 1, (index, -1.0))
error_count += 1
if error_count:
warning("Failed to produce %d preview snippet(s)" % error_count)
# 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 legacy_latex_file(latex_file, fg_color, bg_color):
use_polyglossia_re = re.compile(b"\\s*\\\\usepackage{polyglossia}")
use_preview_re = re.compile(b"\\s*\\\\usepackage\\[([^]]+)\\]{preview}")
fg_color_gr = make_texcolor(fg_color, True)
bg_color_gr = make_texcolor(bg_color, True)
tmp = tempfile.TemporaryFile()
success = 0
try:
f = open(latex_file, 'rb')
except:
# Unable to open the file, but do nothing here because
# the calling function will act on the value of 'success'.
warning('Warning in legacy_latex_file! Unable to open "%s"' %
latex_file)
warning(repr(sys.exc_info()[0]) + ',' + repr(sys.exc_info()[1]))
polyglossia = False
for line in f.readlines():
if success:
tmp.write(line)
continue
match = use_preview_re.match(line)
polymatch = use_polyglossia_re.match(line)
# Package order:
# * if polyglossia is used, we need to load color before that
# (also, we do not have to load lmodern)
# * else, color should be loaded before preview
if match == None:
if polymatch == None:
tmp.write(line)
continue
else:
tmp.write(b"""
\\usepackage{color}
\\definecolor{fg}{rgb}{%s}
\\definecolor{bg}{rgb}{%s}
\\pagecolor{bg}
\\usepackage{polyglossia}
""" % (fg_color_gr, bg_color_gr))
polyglossia = True
continue
success = 1
# Preview options: add the options lyx and tightpage
previewopts = match.group(1)
if not polyglossia:
tmp.write(b"""
\\usepackage{color}
\\definecolor{fg}{rgb}{%s}
\\definecolor{bg}{rgb}{%s}
\\pagecolor{bg}
\\usepackage[%s,tightpage]{preview}
\\makeatletter
\\def\\t@a{cmr}
\\if\\f@family\\t@a
\\IfFileExists{lmodern.sty}{\\usepackage{lmodern}}{\\usepackage{ae,aecompl}}
\\fi
\\g@addto@macro\\preview{\\begingroup\\color{bg}\\special{ps::clippath fill}\\color{fg}}
\\g@addto@macro\\endpreview{\\endgroup}
\\makeatother
""" % (fg_color_gr, bg_color_gr, previewopts))
else:
tmp.write(b"""
\\usepackage[%s,tightpage]{preview}
\\makeatletter
\\g@addto@macro\\preview{\\begingroup\\color{bg}\\special{ps::clippath fill}\\color{fg}}
\\g@addto@macro\\endpreview{\\endgroup}
\\makeatother
""" % previewopts)
if success:
copyfileobj(tmp, open(latex_file, "wb"), 1)
return success
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)
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.
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
