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|
#
# poparser.ry - ruby version of msgfmt
#
# Copyright (C) 2002-2008 Masao Mutoh <mutomasa at gmail.com>
#
# You may redistribute it and/or modify it under the same
# license terms as Ruby.
class GetText::PoParser
token COMMENT MSGID MSGCTXT MSGID_PLURAL MSGSTR STRING PLURAL_NUM
rule
msgfmt
: /* empty */
| msgfmt comment
| msgfmt msgctxt
| msgfmt message
;
msgctxt
: MSGCTXT string_list
{
@msgctxt = unescape(val[1]) + "\004"
}
;
message
: single_message
| plural_message
;
single_message
: MSGID string_list MSGSTR string_list
{
if @fuzzy and $ignore_fuzzy
if val[1] != ""
$stderr.print _("Warning: fuzzy message was ignored.\n")
$stderr.print " #{@po_file}: msgid '#{val[1]}'\n"
else
on_message('', unescape(val[3]))
end
@fuzzy = false
else
on_message(@msgctxt + unescape(val[1]), unescape(val[3]))
end
result = ""
}
plural_message
: MSGID string_list MSGID_PLURAL string_list msgstr_plural
{
if @fuzzy and $ignore_fuzzy
if val[1] != ""
$stderr.print _("Warning: fuzzy message was ignored.\n")
$stderr.print "msgid = '#{val[1]}\n"
else
on_message('', unescape(val[3]))
end
@fuzzy = false
else
on_message(@msgctxt + unescape(val[1]) + "\000" + unescape(val[3]), unescape(val[4]))
end
result = ""
}
;
msgstr_plural
: msgstr_plural msgstr_plural_line
{
if val[0].size > 0
result = val[0] + "\000" + val[1]
else
result = ""
end
}
| msgstr_plural_line
;
msgstr_plural_line
: MSGSTR PLURAL_NUM string_list
{
result = val[2]
}
;
comment
: COMMENT
{
on_comment(val[0])
}
#| COMMENT
#;
string_list
: string_list STRING
{
result = val.delete_if{|item| item == ""}.join
}
| STRING
{
result = val[0]
}
;
end
---- inner
include GetText
GetText.bindtextdomain("rgettext")
def unescape(orig)
ret = orig.gsub(/\\n/, "\n")
ret.gsub!(/\\t/, "\t")
ret.gsub!(/\\r/, "\r")
ret.gsub!(/\\"/, "\"")
ret
end
def parse(str, data, ignore_fuzzy = true)
@comments = []
@data = data
@fuzzy = false
@msgctxt = ""
$ignore_fuzzy = ignore_fuzzy
str.strip!
@q = []
until str.empty? do
case str
when /\A\s+/
str = $'
when /\Amsgctxt/
@q.push [:MSGCTXT, $&]
str = $'
when /\Amsgid_plural/
@q.push [:MSGID_PLURAL, $&]
str = $'
when /\Amsgid/
@q.push [:MSGID, $&]
str = $'
when /\Amsgstr/
@q.push [:MSGSTR, $&]
str = $'
when /\A\[(\d+)\]/
@q.push [:PLURAL_NUM, $1]
str = $'
when /\A\#~(.*)/
$stderr.print _("Warning: obsolete msgid exists.\n")
$stderr.print " #{$&}\n"
@q.push [:COMMENT, $&]
str = $'
when /\A\#(.*)/
@q.push [:COMMENT, $&]
str = $'
when /\A\"(.*)\"/
@q.push [:STRING, $1]
str = $'
else
#c = str[0,1]
#@q.push [:STRING, c]
str = str[1..-1]
end
end
@q.push [false, '$end']
if $DEBUG
@q.each do |a,b|
puts "[#{a}, #{b}]"
end
end
@yydebug = true if $DEBUG
do_parse
if @comments.size > 0
@data.set_comment(:last, @comments.join("\n"))
end
@data
end
def next_token
@q.shift
end
def on_message(msgid, msgstr)
if msgstr.size > 0
@data[msgid] = msgstr
@data.set_comment(msgid, @comments.join("\n"))
end
@comments.clear
@msgctxt = ""
end
def on_comment(comment)
@fuzzy = true if (/fuzzy/ =~ comment)
@comments << comment
end
def parse_file(po_file, data, ignore_fuzzy = true)
args = [ po_file ]
# In Ruby 1.9, we must detect proper encoding of a PO file.
if String.instance_methods.include?(:encode)
encoding = detect_file_encoding(po_file)
args << "r:#{encoding}"
end
@po_file = po_file
parse(File.open(*args) {|io| io.read }, data, ignore_fuzzy)
end
def detect_file_encoding(po_file)
open(po_file, :encoding => 'ASCII-8BIT') do |input|
input.lines.each do |line|
return Encoding.find($1) if %r["Content-Type:.*\scharset=(.*)\\n"] =~ line
end
end
Encoding.default_external
end
private :detect_file_encoding
---- footer
|
