def run(self, shell, args):
try:
ns = self.parser.parse_args(args)
except CommandShortCircuit as e:
return e.code
rc = None
if ns.list:
for name in shell.ctx.aliases:
print(name, "=", shell.ctx.aliases[name])
rc = 0
elif ns.delete:
for name in ns.delete:
if name in shell.ctx.aliases:
del shell.ctx.aliases[name]
rc = 0
else:
self.error(shell, "alias does not exist: ", name)
rc = 1
break
else:
(remainder, exp) = Expression.parse(args)
if remainder or not exp or exp.operator != '=':
self.error(shell, "invalid expression")
rc = 1
else:
shell.ctx.aliases[exp.operand] = exp.value
rc = 0
return rc
def run(self, shell, args):
try:
ns = self.parser.parse_args(args)
except CommandShortCircuit as e:
return e.code
rc = None
if ns.list:
for name in shell.ctx.aliases:
print(name, "=", shell.ctx.aliases[name])
rc = 0
elif ns.delete:
for name in ns.delete:
if name in shell.ctx.aliases:
del shell.ctx.aliases[name]
rc = 0
else:
self.error(shell, "alias does not exist: ", name)
rc = 1
break
else:
(remainder, exp) = Expression.parse(args)
if remainder or not exp or exp.operator != '=':
self.error(shell, "invalid expression")
rc = 1
else:
shell.ctx.aliases[exp.operand] = exp.value
rc = 0
return rc
def run(self, shell, args, ctx):
ns = self.parser.parse_args(shell, args)
if self.parser.rc is not None:
return self.parser.rc
rc = 0
if ns.list:
tbl = Table(
columns=(Column("Variable"), Column("Value", Column.Grow)),
width=shell.width,
spacing=4,
)
for name in shell.ctx.vars:
if name == '_':
continue
s = shell.ctx.vars[name]
if callable(s):
s = s()
elif isinstance(s, ManagedVariable):
s = s.getter(shell)
tbl.append(name, obj_str(s))
tbl.write(sys.stdout)
elif ns.delete:
if ns.delete in shell.ctx.vars:
s = shell.ctx.vars[ns.delete]
if isinstance(s, ManagedVariable):
self.error(shell,
"variable is managed and cannot be deleted")
rc = -1
else:
del shell.ctx.vars[ns.delete]
else:
self.error(shell, "unknown variable: ", ns.delete)
elif ns.exp and '=' in ''.join(args):
(remainder, exp) = Expression.parse(args)
if remainder or not exp:
self.error(shell, "invalid expression")
return 1
shell.ctx.vars[exp.operand] = exp.value
elif ns.exp:
if len(args) == 1:
if args[0] in shell.ctx.vars:
s = shell.ctx.vars[args[0]]
if callable(s):
s = s()
elif isinstance(s, ManagedVariable):
s = s.getter(shell)
print(obj_str(s))
else:
self.error(shell, "unknown variable: ", args[0])
return 1
else:
self.error(shell, "invalid expression")
return 1
else:
self.usage_error(shell, "missing required EXPRESSION")
rc = 1
return rc
def run(self, shell, args, ctx):
ns = self.parser.parse_args(shell, args)
if self.parser.rc is not None:
return self.parser.rc
rc = 0
if ns.list:
tbl = Table(
columns=(Column("Variable"), Column("Value", Column.Grow)),
width=shell.width,
spacing=4,
)
for name in shell.ctx.vars:
if name == '_':
continue
s = shell.ctx.vars[name]
if callable(s):
s = s()
elif isinstance(s, ManagedVariable):
s = s.getter(shell)
tbl.append(name, obj_str(s))
tbl.write(sys.stdout)
elif ns.delete:
if ns.delete in shell.ctx.vars:
s = shell.ctx.vars[ns.delete]
if isinstance(s, ManagedVariable):
self.error(shell, "variable is managed and cannot be deleted")
rc = -1
else:
del shell.ctx.vars[ns.delete]
else:
self.error(shell, "unknown variable: ", ns.delete)
elif ns.exp and '=' in ''.join(args):
(remainder, exp) = Expression.parse(args)
if remainder or not exp:
self.error(shell, "invalid expression")
return 1
shell.ctx.vars[exp.operand] = exp.value
elif ns.exp:
if len(args) == 1:
if args[0] in shell.ctx.vars:
s = shell.ctx.vars[args[0]]
if callable(s):
s = s()
elif isinstance(s, ManagedVariable):
s = s.getter(shell)
print(obj_str(s))
else:
self.error(shell, "unknown variable: ", args[0])
return 1
else:
self.error(shell, "invalid expression")
return 1
else:
self.usage_error(shell, "missing required EXPRESSION")
rc =1
return rc
def run(self, shell, args):
try:
ns = self.parser.parse_args(args)
except CommandShortCircuit as e:
return e.code
rc = 0
if ns.list:
tbl = Table(
columns=(Column("Variable"), Column("Value", Column.Grow)),
width=shell.width,
spacing=4,
)
for name in shell.ctx.vars:
s = shell.ctx.vars[name]
if callable(s):
s = s()
elif isinstance(s, ManagedVariable):
s = s.get(shell)
tbl.append(name, obj_str(s))
tbl.write(sys.stdout)
elif ns.delete:
if ns.delete in shell.ctx.vars:
s = shell.ctx.vars[ns.delete]
if isinstance(s, ManagedVariable):
self.error(shell,
"variable is managed and cannot be deleted")
rc = -1
else:
del shell.ctx.vars[ns.delete]
else:
self.error(shell, "unknown variable: ", ns.delete)
rc = -1
elif ns.exp and '=' in ''.join(args):
(remainder, exp) = Expression.parse(args)
if remainder or not exp:
self.error(shell, "invalid expression")
return 1
if isinstance(shell.ctx.vars[exp.operand], ManagedVariable):
try:
shell.ctx.vars[exp.operand].set(shell, exp.value)
except ValueError as e:
self.error(shell, "could not set variable: ", str(e))
return -1
else:
shell.ctx.vars[exp.operand] = exp.value
elif ns.exp:
if len(args) == 1:
if args[0] in shell.ctx.vars:
s = shell.ctx.vars[args[0]]
if callable(s):
s = s()
elif isinstance(s, ManagedVariable):
s = s.getter(shell)
print(obj_str(s))
else:
self.error(shell, "unknown variable: ", args[0])
return 1
else:
self.error(shell, "invalid expression")
return 1
else:
self.usage_error(shell, "missing required EXPRESSION")
rc = 1
return rc
def run(self, shell, args):
try:
ns = self.parser.parse_args(args)
except CommandShortCircuit as e:
return e.code
rc = 0
if ns.list:
tbl = Table(
columns=(Column("Variable"), Column("Value", Column.Grow)),
width=shell.width,
spacing=4,
)
for name in shell.ctx.vars:
s = shell.ctx.vars[name]
if callable(s):
s = s()
elif isinstance(s, ManagedVariable):
s = s.get(shell)
tbl.append(name, obj_str(s))
tbl.write(sys.stdout)
elif ns.delete:
if ns.delete in shell.ctx.vars:
s = shell.ctx.vars[ns.delete]
if isinstance(s, ManagedVariable):
self.error(shell,
"variable is managed and cannot be deleted")
rc = -1
else:
del shell.ctx.vars[ns.delete]
else:
self.error(shell, "unknown variable: ", ns.delete)
rc = -1
elif ns.exp and '=' in ''.join(args):
(remainder, exp) = Expression.parse(args)
if remainder or not exp:
self.error(shell, "invalid expression")
return 1
if isinstance(shell.ctx.vars[exp.operand], ManagedVariable):
try:
shell.ctx.vars[exp.operand].set(shell, exp.value)
except ValueError as e:
self.error(shell, "could not set variable: ", str(e))
return -1
else:
shell.ctx.vars[exp.operand] = exp.value
elif ns.exp:
if len(args) == 1:
if args[0] in shell.ctx.vars:
s = shell.ctx.vars[args[0]]
if callable(s):
s = s()
elif isinstance(s, ManagedVariable):
s = s.getter(shell)
print(obj_str(s))
else:
self.error(shell, "unknown variable: ", args[0])
return 1
else:
self.error(shell, "invalid expression")
return 1
else:
self.usage_error(shell, "missing required EXPRESSION")
rc = 1
return rc
