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"""POT files contain the template for transltion.
This module is write-only. It doesn't read any data from launchpad exports.
The data it writes out is completely the GRD data. We map languages out to
what launchpad expects.
white-space
# translator-comments
#. extracted-comments
#: reference...
#, flag...
#| msgid previous-untranslated-string
msgid untranslated-string
msgstr translated-string
"""
import logging
import re
import os
from .gettext import gettext_file_sorting_function, grd_msg_write_in_po
COND_DEFINES = frozenset("linux/use_third_party_translations/use_titlecase/_google_chrome".split("/"))
COND_UNDEFINED_BUT_KNOWN = frozenset("ios/chromeos/android/use_ash/enable_settings_app".split("/"))
def evaluate_grd_condition(expression_string):
"""Evaluate a expression in string form that we got from a GRD file, after
we rewrite all lang-referencing subexpressions to Truthness. Return true
or false.
>>> evaluate_grd_condition("False")
False
>>> evaluate_grd_condition("lang =='ar'")
True
>>> evaluate_grd_condition("lang != 'ar'")
True
>>> evaluate_grd_condition("lang not in ['zh-CN', 'zh-TW', 'ko', 'ja', 'vi', 'tr', 'kn']")
True
>>> evaluate_grd_condition(" lang in[ 'zh-CN', 'zh-TW', 'ko', 'ja', 'vi', 'tr', 'kn'] ")
True
"""
def pp_ifdef(n):
"""GRIT function we reimplement for use by evaluator."""
if n in COND_DEFINES:
return True
if not n in COND_UNDEFINED_BUT_KNOWN:
logging.warn("name %r might be new. Define it or add it to undefined_but_known in conditions", n)
return False
# munge conditions here to convert all "lang"-referencing expressions terms to true.
expression_string = re.sub(r"\blang\s*(?:!|=)=\s*'\w+'", "True", expression_string)
expression_string = re.sub(r"\blang(\s+not)?\s+in\s*\[\s*('[^']+',?\s*)*\]", "True", expression_string)
global_variables = { "__builtins__": { "True":True, "False":False } }
local_variables = dict(pp_ifdef=pp_ifdef, is_android=False, is_macosx=False, is_posix=True, is_win=False, is_linux=True)
try:
condition_result = eval(expression_string, global_variables, local_variables)
except NameError:
logging.warn("A name used in condition %r is unknown! You have to define it.", expression_string)
raise
return condition_result
def save_pot(txln_info, container_directory, template_name):
file_map = dict()
try:
os.makedirs(os.path.join(container_directory, template_name))
except:
pass
out = open(os.path.join(container_directory, template_name, template_name + ".pot"), "w")
out.write("""# Chromium Translation Template.\n# Copyright 2013 Canonical\n# This file is distributed inder the same license as the chromium-browser package.\n# Contact Chad MILLER <chad.miller@canonical.com>\n\nmsgid ""\nmsgstr ""\n"Project-Id-Version: chromium-browser.head\\n"\n"Report-Msgid-Bugs-To: https://bugs.launchpad.net/ubuntu/+source/chromium-"\n"browser/+filebug\\n"\n"Language-Team: Launchpad Translators <launchpad-translators@lists.launchpad.net>\\n"\n"MIME-Version: 1.0\\n"\n"Content-Type: text/plain; charset=UTF-8\\n"\n"Content-Transfer-Encoding: 8bit\\n"\n\n""")
try:
for grdsid, template_info in sorted(txln_info.items(), key=gettext_file_sorting_function):
if "refs" in template_info:
# For each of these, create a template stanza.
condition_evaluation = False
for ref in template_info["refs"]:
# If ANY language needs this, then we need it. No condition means True.
if not ref["conditions"]:
condition_evaluation = True
else:
# For this language, we can have many conditions, and all have to pass for this language to pass.
this_cond = all(evaluate_grd_condition(x) for x in set(ref["conditions"]))
condition_evaluation = condition_evaluation or this_cond
if not condition_evaluation:
break
if not condition_evaluation:
out.write("#. UNUSED: {0} == False\n".format(" OR ".join(sorted(set(("("+ " and ".join(c for c in ref["conditions"] if c != "()") + ")") for ref in template_info["refs"])))))
for note in sorted(set(r["note"].strip() for r in template_info["refs"]))[:5]:
if not note:
continue
out.write("#. note: {0!r}\n".format(note))
# Notes to nonprogrammer translators about tricky things they might mess up.
if "\\x" in template_info["text"]:
out.write("#. note: Take care to keep backslash-x-letter-letter together.\n")
for example in sorted(r.get("example", "") for r in template_info["refs"]):
if example:
out.write("#. ex: {0}\n".format(example))
for ref in sorted(template_info["refs"], key=lambda r: r["file"])[:2]:
out.write("#. in: {file}, as {id}\n".format(**ref))
out.write("#: id: {0}; intermediary: cmlpgrid v1\n".format(grdsid))
grd_msg_write_in_po("msgid", template_info["text"], out)
grd_msg_write_in_po("msgstr", "", out)
out.write("\n")
finally:
for f in file_map.values():
f.close()
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