libhl/debug/regex.pretty_print.py
2023-08-28 15:38:43 +02:00

55 lines
1.2 KiB
Python

class RegexPrinter:
def __init__(self, val):
self.val = val
def to_string(self):
# Init
s = "{"
# Regular shit
s += "accepting_state = " + str(self.val['accepting_state']) + ", str = " + str(self.val['str']) + ",\n"
# Delta
delta_t_ptr_ptr = gdb.lookup_type("delta_t").pointer().pointer()
dt = self.val['delta_table']
s += "delta_table = {\n"
for i in range(0, dt['element_count']):
s += "\t"
s += (
str(
(
dt['data'].cast(delta_t_ptr_ptr)
+
i
).dereference().dereference()
)
)
s += ",\n"
s = s[:-2]
s += "\n },\n"
# Offshoot
offshoot_t_ptr_ptr = gdb.lookup_type("offshoot_t").pointer().pointer()
dt = self.val['catch_table']
s += "offshoot_table = { \n"
for i in range(0, dt['element_count']):
s += "\t"
s += (
str(
(
dt['data'].cast(offshoot_t_ptr_ptr)
+
i
).dereference().dereference()
)
)
s += ",\n"
s = s[:-2]
s += "\n }\n"
# Closour
s += "}"
return s
def regex_lookup(val):
if str(val.type) == 'regex_t' or str(val.type) == 'const regex_t':
return RegexPrinter(val)
return None
gdb.pretty_printers.append(regex_lookup)