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from l10ntool import AbstractL10nTool
from sdf import SdfEntity
import sys
import shutil 

class Xtxex(AbstractL10nTool):
    _resource_type       = "xtx" 
       
    def __init__(self):
        AbstractL10nTool.__init__(self)
        
    def merge_file(self, inputfilename, outputfilename, parsed_file_ref, lang, is_forced_lang, sdfdata): 
        # Special handling for en-US files
        if lang == "en-US":             
            mod_outputfilename = outputfilename.replace("_en-US",'')
            self.copy_file(inputfilename, mod_outputfilename)
            return      
        # merge usual lang
        sdfline = self.prepare_sdf_line(inputfilename,lang)
        if sdfdata.has_key(sdfline.get_id()):
            line = sdfdata[sdfline.get_id()].text.replace("\\n", '\n')
            self.make_dirs(outputfilename)
            try:
                f = open(outputfilename, "w+")
                f.write(line)
            except IOError:
                print "ERROR: Can not write file " + outputfilename
                sys.exit(-1)
            else:
                f.close()
            return        
        # no sdf data found then copy en-US source file
        if is_forced_lang:
            self.copy_file(inputfilename, outputfilename)
               
    ##### Extract a single File
    def extract_file(self, inputfile):
        lines = []
        try:
            f = open(inputfile, "r")
            lines = f.readlines()
        except IOError:
            print "ERROR: Can not open file " + inputfile
            sys.exit(-1)
        else:
            f.close()
        # remove legal header
        lines = [line for line in lines if len(line) > 0 and not line[0] == '#']        
        # escape all returns
        lines = [line.replace('\n', "\\n") for line in lines]
        line = ''.join(lines)
        sdf_entity = self.prepare_sdf_line(inputfile);
        sdf_entity.text = line
        return str(sdf_entity)
    
    def prepare_sdf_line(self, inputfile="", lang=""):
        if lang == "":
            lang = self._source_language
        return SdfEntity(project=self._options.project_name, source_file=self.get_filename_string(inputfile),
                          resource_type=self._resource_type, gid="none", lid="none", langid=lang,text="")
         
run = Xtxex()