def GenerateSamples(grammar_dir, outfiles):
"""Generates a set of samples and writes them to the output files.
Args:
grammar_dir: directory to load grammar files from.
outfiles: A list of output filenames.
"""
f = open(os.path.join(grammar_dir, 'template.html'))
template = f.read()
f.close()
htmlgrammar = Grammar()
err = htmlgrammar.ParseFromFile(os.path.join(grammar_dir, 'html.txt'))
#CheckGrammar(htmlgrammar)
if err > 0:
print 'There were errors parsing grammar'
return
cssgrammar = Grammar()
err = cssgrammar.ParseFromFile(os.path.join(grammar_dir, 'css.txt'))
#CheckGrammar(cssgrammar)
if err > 0:
print 'There were errors parsing grammar'
return
jsgrammar = Grammar()
err = jsgrammar.ParseFromFile(os.path.join(grammar_dir, 'js.txt'))
#CheckGrammar(jsgrammar)
if err > 0:
print 'There were errors parsing grammar'
return
# JS and HTML grammar need acces to CSS grammar.
# Add it as import
htmlgrammar.AddImport('cssgrammar', cssgrammar)
jsgrammar.AddImport('cssgrammar', cssgrammar)
for outfile in outfiles:
result = GenerateNewSample(template, htmlgrammar, cssgrammar,
jsgrammar)
if result is not None:
print 'Writing a sample to ' + outfile
try:
f = open(outfile, 'w')
f.write(result)
f.close()
except IOError:
print 'Error writing to output'
