def semex_add(ctx, args):
"""
Adds a semex to the context's list of semexes.
Args:
ctx (context.Context)
args (kct.argparse.Namepsace)
args.name (str) - used to refer to the semex
args.semex-str (str) - the semex in string form. A valid argument to
semex.parser.compile_regex
Returns: None
"""
from vinge.semex.parser import compile_regex, RegexParseException
from vinge.semex.ast_to_semex import ast_to_semex
name = args.name
# argparse gives us an array of strings as the semex-str. We want a string
semex_str = ' '.join(getattr(args, 'semex-str'))
try:
semex_ast = compile_regex(semex_str)
semex = ast_to_semex(ctx.graph, ctx.transition, ctx.transition_op, semex_ast)
# Add to the context
ctx.add_semex(name, semex)
pp('Successfully added path set')
except RegexParseException, rpe:
error("Error parsing path set (semex) '%s': %s"%(semex_str, rpe.message))
def do_ast_to_semex(ast):
return ast_to_semex(graph, transition, transition_op, ast)
