mirror of
https://git.lyx.org/repos/lyx.git
synced 2024-09-19 22:40:26 +00:00
Extend instant-preview error handling to the lilypond-book format.
Patch tested by Julien Rioux. git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@37290 a592a061-630c-0410-9148-cb99ea01b6c8
This commit is contained in:
Enrico Forestieri
parent
85d2c53532
commit
dc8adcf1ba
@ -49,10 +49,11 @@
|
||||
import glob, os, re, shutil, string, sys
|
||||
|
||||
from legacy_lyxpreview2ppm import legacy_conversion, \
|
||||
legacy_conversion_step2
|
||||
legacy_conversion_step2, legacy_extract_metrics_info
|
||||
|
||||
from lyxpreview_tools import copyfileobj, error, find_exe, \
|
||||
find_exe_or_terminate, make_texcolor, mkstemp, run_command, warning
|
||||
find_exe_or_terminate, make_texcolor, mkstemp, run_command, warning, \
|
||||
write_metrics_info
|
||||
|
||||
|
||||
# Pre-compiled regular expressions.
|
||||
@ -63,19 +64,21 @@ def usage(prog_name):
|
||||
return "Usage: %s <format> <latex file> <dpi> <fg color> <bg color>\n"\
|
||||
"\twhere the colors are hexadecimal strings, eg 'faf0e6'"\
|
||||
% prog_name
|
||||
|
||||
|
||||
def extract_metrics_info(dvipng_stdout, metrics_file):
|
||||
metrics = open(metrics_file, 'w')
|
||||
# "\[[0-9]+" can match two kinds of numbers: page numbers from dvipng
|
||||
# and glyph numbers from mktexpk. The glyph numbers always match
|
||||
# "\[[0-9]+\]" while the page number never is followed by "\]". Thus:
|
||||
|
||||
# Returns a list of tuples containing page number and ascent fraction
|
||||
# extracted from dvipng output.
|
||||
# Use write_metrics_info to create the .metrics file with this info
|
||||
def extract_metrics_info(dvipng_stdout):
|
||||
# "\[[0-9]+" can match two kinds of numbers: page numbers from dvipng
|
||||
# and glyph numbers from mktexpk. The glyph numbers always match
|
||||
# "\[[0-9]+\]" while the page number never is followed by "\]". Thus:
|
||||
page_re = re.compile("\[([0-9]+)[^]]");
|
||||
metrics_re = re.compile("depth=(-?[0-9]+) height=(-?[0-9]+)")
|
||||
|
||||
success = 0
|
||||
page = ""
|
||||
pos = 0
|
||||
results = []
|
||||
while 1:
|
||||
match = page_re.search(dvipng_stdout, pos)
|
||||
if match == None:
|
||||
@ -96,14 +99,17 @@ def extract_metrics_info(dvipng_stdout, metrics_file):
|
||||
if abs(ascent + descent) > 0.1:
|
||||
frac = ascent / (ascent + descent)
|
||||
|
||||
# Sanity check
|
||||
# Sanity check
|
||||
if frac < 0:
|
||||
frac = 0.5
|
||||
|
||||
metrics.write("Snippet %s %f\n" % (page, frac))
|
||||
results.append((page, frac))
|
||||
pos = match.end() + 2
|
||||
|
||||
return success
|
||||
if success == 0:
|
||||
error("Failed to extract metrics info from dvipng")
|
||||
|
||||
return results
|
||||
|
||||
|
||||
def color_pdf(latex_file, bg_color):
|
||||
@ -213,7 +219,7 @@ def main(argv):
|
||||
|
||||
latex_status, latex_stdout = run_command(latex_call)
|
||||
if latex_status != None:
|
||||
warning("%s failed to compile %s" \
|
||||
warning("%s had problems compiling %s" \
|
||||
% (os.path.basename(latex), latex_file))
|
||||
warning(latex_stdout)
|
||||
|
||||
@ -224,37 +230,158 @@ def main(argv):
|
||||
|
||||
# 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)
|
||||
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:)")
|
||||
for dtl_line in dv2dt_output.split("\n"):
|
||||
if psliteral_re.match(dtl_line) != None:
|
||||
|
||||
# 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!
|
||||
# Fallback to legacy conversion
|
||||
vec = [argv[0], argv[2], argv[3], argv[1], argv[4], argv[5], latex]
|
||||
return legacy_conversion(vec)
|
||||
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"' \
|
||||
% (dvipng, dpi, fg_color, bg_color, dvi_file)
|
||||
|
||||
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)
|
||||
|
||||
# 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")
|
||||
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":
|
||||
|
||||
Loading…
Reference in New Issue
Block a user