--- a/mercurial/parser.py Fri Apr 08 16:42:43 2016 +0200
+++ b/mercurial/parser.py Mon Feb 29 18:33:30 2016 +0900
@@ -229,6 +229,19 @@
else:
return inst.args[0]
+class alias(object):
+ """Parsed result of alias"""
+
+ def __init__(self, name, tree, args, err, replacement):
+ self.name = name
+ self.tree = tree
+ self.args = args
+ self.error = err
+ self.replacement = replacement
+ # whether own `error` information is already shown or not.
+ # this avoids showing same warning multiple times at each `findaliases`.
+ self.warned = False
+
class basealiasrules(object):
"""Parsing and expansion rule set of aliases
@@ -430,3 +443,22 @@
else:
args = set()
return cls._relabelargs(tree, args)
+
+ @classmethod
+ def build(cls, decl, defn):
+ """Parse an alias declaration and definition into an alias object"""
+ repl = efmt = None
+ name, tree, args, err = cls._builddecl(decl)
+ if err:
+ efmt = _('failed to parse the declaration of %(section)s '
+ '"%(name)s": %(error)s')
+ else:
+ try:
+ repl = cls._builddefn(defn, args)
+ except error.ParseError as inst:
+ err = parseerrordetail(inst)
+ efmt = _('failed to parse the definition of %(section)s '
+ '"%(name)s": %(error)s')
+ if err:
+ err = efmt % {'section': cls._section, 'name': name, 'error': err}
+ return alias(name, tree, args, err, repl)