# A repository of the following functions, used by the lyxpreview2xyz scripts.
# copyfileobj, error, find_exe, find_exe_or_terminate, make_texcolor, mkstemp,
-# run_command, warning
+# progress, run_command, warning
-import os, re, string, sys, tempfile
+# Requires python 2.4 or later (subprocess module).
+
+import os, re, string, subprocess, sys, tempfile
+
+
+# Control the output to stdout
+debug = False
+verbose = False
+
+# Known flavors of latex
+latex_commands = ("latex", "pplatex", "platex", "latex2e")
+pdflatex_commands = ("pdflatex", "xelatex", "lualatex")
+
+# Pre-compiled regular expressions
+latex_file_re = re.compile(r"\.tex$")
+
+# PATH and PATHEXT environment variables
+path = os.environ["PATH"].split(os.pathsep)
+extlist = ['']
+if "PATHEXT" in os.environ:
+ extlist += os.environ["PATHEXT"].split(os.pathsep)
use_win32_modules = 0
if os.name == "nt":
import win32security
import winerror
except:
- sys.stderr.write("Consider installing the PyWin extension modules "\
+ sys.stderr.write("Consider installing the PyWin extension modules " \
"if you're irritated by windows appearing briefly.\n")
use_win32_modules = 0
+def progress(message):
+ global verbose
+ if verbose:
+ sys.stdout.write("Progress: %s\n" % message)
+
+
def warning(message):
- sys.stderr.write(message + '\n')
+ sys.stderr.write("Warning: %s\n" % message)
def error(message):
- sys.stderr.write(message + '\n')
+ sys.stderr.write("Error: %s\n" % message)
sys.exit(1)
return "rgb %f %f %f" % (red, green, blue)
-def find_exe(candidates, path):
- extlist = ['']
- if os.environ.has_key("PATHEXT"):
- extlist = extlist + os.environ["PATHEXT"].split(os.pathsep)
+def find_exe(candidates):
+ global extlist, path
- for prog in candidates:
+ for command in candidates:
+ prog = command.split()[0]
for directory in path:
for ext in extlist:
full_path = os.path.join(directory, prog + ext)
# have found it). Return just the basename to avoid
# problems when the path to the executable contains
# spaces.
- return os.path.basename(full_path)
+ return command
return None
-def find_exe_or_terminate(candidates, path):
- exe = find_exe(candidates, path)
+def find_exe_or_terminate(candidates):
+ exe = find_exe(candidates)
if exe == None:
error("Unable to find executable from '%s'" % string.join(candidates))
def run_command_popen(cmd):
- handle = os.popen(cmd, 'r')
- cmd_stdout = handle.read()
- cmd_status = handle.close()
-
+ if os.name == 'nt':
+ unix = False
+ else:
+ unix = True
+ pipe = subprocess.Popen(cmd, shell=unix, close_fds=unix, stdin=subprocess.PIPE, \
+ stdout=subprocess.PIPE, stderr=subprocess.STDOUT, universal_newlines=True)
+ cmd_stdout = pipe.communicate()[0]
+ cmd_status = pipe.returncode
+
+ global debug
+ if debug:
+ sys.stdout.write(cmd_stdout)
return cmd_status, cmd_stdout
if win32process.GetExitCodeProcess(process):
return -3, ""
- return None, data
+ global debug
+ if debug:
+ sys.stdout.write(data)
+ return 0, data
def run_command(cmd):
+ progress("Running %s" % cmd)
if use_win32_modules:
return run_command_win32(cmd)
else:
for metric in metrics_info:
metrics.write("Snippet %s %f\n" % metric)
metrics.close()
+
+# Reads a .tex files and create an identical file but only with
+# pages whose index is in pages_to_keep
+def filter_pages(source_path, destination_path, pages_to_keep):
+ source_file = open(source_path, "r")
+ destination_file = open(destination_path, "w")
+
+ page_index = 0
+ skip_page = False
+ for line in source_file:
+ # We found a new page
+ if line.startswith("\\begin{preview}"):
+ page_index += 1
+ # If the page index isn't in pages_to_keep we don't copy it
+ skip_page = page_index not in pages_to_keep
+
+ if not skip_page:
+ destination_file.write(line)
+
+ # End of a page, we reset the skip_page bool
+ if line.startswith("\\end{preview}"):
+ skip_page = False
+
+ destination_file.close()
+ source_file.close()
+
+# Joins two metrics list, that is a list of tuple (page_index, metric)
+# new_page_indexes contains the original page number of the pages in new_metrics
+# e.g. new_page_indexes[3] == 14 means that the 4th item in new_metrics is the 15th in the original counting
+# original_bitmap and destination_bitmap are file name models used to rename the new files
+# e.g. image_new%d.png and image_%d.png
+def join_metrics_and_rename(original_metrics, new_metrics, new_page_indexes, original_bitmap, destination_bitmap):
+ legacy_index = 0
+ for (index, metric) in new_metrics:
+ # If the file exists we rename it
+ if os.path.isfile(original_bitmap % (index)):
+ os.rename(original_bitmap % (index), destination_bitmap % new_page_indexes[index-1])
+
+ # Extract the original page index
+ index = new_page_indexes[index-1]
+ # Goes through the array until the end is reached or the correct index is found
+ while legacy_index < len(original_metrics) and original_metrics[legacy_index][0] < index:
+ legacy_index += 1
+
+ # Add or update the metric for this page
+ if legacy_index < len(original_metrics) and original_metrics[legacy_index][0] == index:
+ original_metrics[legacy_index] = (index, metric)
+ else:
+ original_metrics.insert(legacy_index, (index, metric))
projects / lyx.git / blobdiff