def merge_lazy_operators(self, debug):
'''
Lazy Set :: is not applied as a Set : until after the merge_in_log has been pruned
Intended to be called during reduction.
'''
# Build dictionary of single ScanCodes first
result_code_lookup = {}
for key, expr in self.data.items():
if expr[0].elems(
)[0] == 1 and expr[0].triggers[0][0][0].type == 'ScanCode':
result_code_lookup.setdefault(expr[0].result_str(),
[]).append(key)
# Build list of lazy keys from log
lazy_keys = {}
for key, expr, enabled in reversed(self.merge_in_log):
if key[0:2] == '::' or key[0:3] == 'i::':
if key not in lazy_keys.keys():
# Debug info
if debug:
print("\033[1mLazy\033[0m", key, expr)
# Determine the target key from the expression
target_key = expr.trigger_str()
lazy_keys[target_key] = expr
# Check if we need to do a lazy replacement
if target_key in result_code_lookup.keys():
expr_keys = result_code_lookup[target_key]
for target_expr_key in expr_keys:
# Calculate new key
new_expr = self.data[target_expr_key][0]
new_key = "{0}{1}".format(
new_expr.operator,
new_expr.unique_keys()[0][0])
# Determine action based on the new_expr.operator
orig_expr = self.data[new_key][0]
if debug:
print(
"\t\033[1;32mREPLACE\033[0m {0} -> {1}\n\t{2} => {3}"
.format(target_expr_key, new_key, expr,
new_expr))
# Do replacement
self.data[new_key] = [
expression.MapExpression(
orig_expr.triggers, orig_expr.operator,
expr.results)
]
self.data[new_key][
0].connect_id = orig_expr.connect_id
# Unset basemap on expression
self.data[new_key][0].base_map = False
def reduction(self, debug=False):
'''
Simplifies datastructure
Used to replace all trigger HIDCode(USBCode)s with ScanCodes
NOTE: Make sure to create a new MergeContext before calling this as you lose data and prior context
'''
result_code_lookup = {}
# Build dictionary of single ScanCodes first
for key, expr in self.data.items():
if expr[0].elems(
)[0] == 1 and expr[0].triggers[0][0][0].type == 'ScanCode':
result_code_lookup[expr[0].result_str()] = expr
# Using this dictionary, replace all the trigger USB codes
# Iterate over a copy so we can modify the dictionary in place
for key, expr in self.data.copy().items():
for sub_expr in expr:
# 1) Single USB Codes trigger results will replace the original ScanCode result
if sub_expr.elems(
)[0] == 1 and sub_expr.triggers[0][0][0].type != 'ScanCode':
# Debug info
if debug:
print("\033[1mSingle\033[0m", key, expr)
# Lookup trigger to see if it exists
trigger_str = sub_expr.trigger_str()
if trigger_str in result_code_lookup.keys():
# Calculate new key
new_expr = result_code_lookup[trigger_str][0]
new_key = "{0}{1}".format(new_expr.operator,
new_expr.unique_keys()[0][0])
# Determine action based on the new_expr.operator
orig_expr = self.data[new_key][0]
# Replace expression
if sub_expr.operator in ['::', ':']:
if debug:
print(
"\t\033[1;32mREPLACE\033[0m {0} -> {1}\n\t{2} => {3}"
.format(key, new_key, sub_expr, new_expr))
# Do replacement
self.data[new_key] = [
expression.MapExpression(
orig_expr.triggers, orig_expr.operator,
sub_expr.results)
]
# Unset basemap on expression
self.data[new_key][0].base_map = False
# Add expression
elif sub_expr.operator in [':+']:
if debug:
print(
"\t\033[1;42mADD\033[0m {0} -> {1}\n\t{2} => {3}"
.format(key, new_key, sub_expr, new_expr))
# Add expression
self.data[new_key].append(
expression.MapExpression(
orig_expr.triggers, orig_expr.operator,
sub_expr.results))
# Unset basemap on sub results
for sub_expr in self.data[new_key]:
sub_expr.base_map = False
# Remove expression
elif sub_expr.operator in [':-']:
if debug:
print(
"\t\033[1;41mREMOVE\033[0m {0} -> {1}\n\t{2} => {3}"
.format(key, new_key, sub_expr, new_expr))
# Remove old key
if key in self.data.keys():
del self.data[key]
# Otherwise drop HID expression
else:
if debug:
print("\t\033[1;34mDROP\033[0m")
del self.data[key]
# 2) Complex triggers are processed to replace out any USB Codes with Scan Codes
elif sub_expr.elems()[0] > 1:
# Debug info
if debug:
print("\033[1;4mMulti\033[0m ", key, expr)
# Lookup each trigger element and replace
# If any trigger element doesn't exist, drop expression
# Dive through sequence->combo->identifier (sequence of combos of ids)
replace = False
drop = False
for seq_in, sequence in enumerate(sub_expr.triggers):
for com_in, combo in enumerate(sequence):
for ident_in, identifier in enumerate(combo):
ident_str = "({0})".format(identifier)
# Replace identifier
if ident_str in result_code_lookup.keys():
match_expr = result_code_lookup[ident_str]
sub_expr.triggers[seq_in][com_in][
ident_in] = match_expr[0].triggers[0][
0][0]
replace = True
# Ignore ScanCodes
elif identifier.type == 'ScanCode':
pass
# Drop everything else
else:
drop = True
# Trigger Identifier was replaced
if replace:
if debug:
print("\t\033[1;32mREPLACE\033[0m", expr)
# Trigger Identifier failed (may still occur if there was a replacement)
if drop:
if debug:
print("\t\033[1;34mDROP\033[0m")
del self.data[key]
# Show results of reduction
if debug:
print(self)
def reduction(self, debug=False):
'''
Simplifies datastructure
Used to replace all trigger HIDCode(USBCode)s with ScanCodes
NOTE: Make sure to create a new MergeContext before calling this as you lose data and prior context
'''
result_code_lookup = {}
# Prune merge_in_log
merge_in_pruned = self.merge_in_log_prune(debug)
# Build dictionary of single ScanCodes first
for key, expr in self.data.items():
if expr[0].elems(
)[0] == 1 and expr[0].triggers[0][0][0].type == 'ScanCode':
result_code_lookup[expr[0].result_str()] = expr
# Skip if dict is empty
if len(self.data.keys()) == 0:
return
# Instead of using the .data dictionary, use the merge_in_log which maintains the expression application order
# Using this list, replace all the trigger USB codes
for key, log_expr, active in self.merge_in_log:
# Skip if not active
if not active:
continue
# Lookup currently merged expression
if key not in self.data.keys():
continue
expr = self.data[key]
for sub_expr in expr:
# 1) Single USB Codes trigger results will replace the original ScanCode result
if sub_expr.elems(
)[0] == 1 and sub_expr.triggers[0][0][0].type in [
'USBCode', 'SysCode', 'ConsCode'
]:
# Debug info
if debug:
print("\033[1mSingle\033[0m", key, expr)
# Lookup trigger to see if it exists
trigger_str = sub_expr.trigger_str()
if trigger_str in result_code_lookup.keys():
# Calculate new key
new_expr = result_code_lookup[trigger_str][0]
new_key = "{0}{1}".format(new_expr.operator,
new_expr.unique_keys()[0][0])
# Determine action based on the new_expr.operator
orig_expr = self.data[new_key][0]
# Replace expression
if sub_expr.operator in [':']:
if debug:
print(
"\t\033[1;32mREPLACE\033[0m {0} -> {1}\n\t{2} => {3}"
.format(key, new_key, sub_expr, new_expr))
# Do replacement
self.data[new_key] = [
expression.MapExpression(
orig_expr.triggers, orig_expr.operator,
sub_expr.results)
]
# Transfer connect_id
self.data[new_key][
0].connect_id = orig_expr.connect_id
# Unset basemap on expression
self.data[new_key][0].base_map = False
# Add expression
elif sub_expr.operator in [':+']:
if debug:
print(
"\t\033[1;42mADD\033[0m {0} -> {1}\n\t{2} => {3}"
.format(key, new_key, sub_expr, new_expr))
# Add expression
self.data[new_key].append(
expression.MapExpression(
orig_expr.triggers, orig_expr.operator,
sub_expr.results))
# Unset basemap on sub results
for sub_expr in self.data[new_key]:
sub_expr.base_map = False
# Remove expression
elif sub_expr.operator in [':-']:
if debug:
print(
"\t\033[1;41mREMOVE\033[0m {0} -> {1}\n\t{2} => {3}"
.format(key, new_key, sub_expr, new_expr))
# Remove old key
if key in self.data.keys():
del self.data[key]
# Otherwise drop HID expression
else:
if debug:
print("\t\033[1;34mDROP\033[0m")
if key in self.data.keys():
del self.data[key]
# 2) Complex triggers are processed to replace out any USB Codes with Scan Codes
elif sub_expr.elems()[0] > 1:
# Debug info
if debug:
print("\033[1;4mMulti\033[0m ", key, expr)
# Lookup each trigger element and replace
# If any trigger element doesn't exist, drop expression
# Dive through sequence->combo->identifier (sequence of combos of ids)
replace = False
drop = False
for seq_in, sequence in enumerate(sub_expr.triggers):
for com_in, combo in enumerate(sequence):
for ident_in, identifier in enumerate(combo):
ident_str = "({0})".format(identifier)
# Replace identifier
if ident_str in result_code_lookup.keys():
match_expr = result_code_lookup[ident_str]
sub_expr.triggers[seq_in][com_in][
ident_in] = match_expr[0].triggers[0][
0][0]
replace = True
# Ignore non-USB triggers
elif identifier.type in [
'IndCode', 'GenericTrigger', 'Layer',
'LayerLock', 'LayerShift',
'LayerLatch', 'ScanCode'
]:
pass
# Drop everything else
else:
drop = True
# Trigger Identifier was replaced
if replace:
if debug:
print("\t\033[1;32mREPLACE\033[0m", expr)
# Trigger Identifier failed (may still occur if there was a replacement)
if drop:
if debug:
print("\t\033[1;34mDROP\033[0m")
del self.data[key]
# Finally we can merge in the Lazy :: Set operators
self.merge_lazy_operators(debug)
# Show results of reduction
if debug:
print(self)