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kakoune/gdb/kakoune.py
Maxime Coste 0ba7c7286d Store buffer content in a list of lines
Instead of a big std::string, buffer now store it's content in a
list of lines. In order to achieve O(log(n)) random access, lines
contains both their content and their offset since the start of
the file, making binary search usable.

BufferIterator now have a LineAndColumn coordinate into the buffer
instead of an offset so that access is still O(1).
2012-03-30 11:37:18 +00:00

67 lines
2.0 KiB
Python

import gdb.printing
class ArrayIterator:
def __init__ (self, data, count):
self.data = data
self.count = count
self.index = 0
def __iter__ (self):
return self
def next (self):
if self.index == self.count:
raise StopIteration
index = self.index
self.index = self.index + 1
return ('[%d]' % index, (self.data + index).dereference())
class MemoryView:
"""Print a memoryview"""
def __init__(self, val):
self.val = val
def display_hint(self):
return 'array'
def children(self):
return ArrayIterator(self.val['m_pointer'], self.val['m_size'])
def to_string(self):
value_type = self.val.type.template_argument(0).unqualified().strip_typedefs()
return "memoryview<%s>" % (value_type)
class LineAndColumn:
"""Print a LineAndColumn"""
def __init__(self, val):
self.val = val
def to_string(self):
value_type = self.val.type.unqualified()
return "%s(%d, %d)" % (value_type, self.val['line'], self.val['column'])
class BufferIterator:
""" Print a BufferIterator"""
def __init__(self, val):
self.val = val
def to_string(self):
if self.val['m_buffer'] != 0:
return "buffer<%s>@(%d, %d)" % (self.val['m_buffer'].dereference()['m_name'], self.val['m_coord']['line'], self.val['m_coord']['column'])
else:
return "buffer<none>@(%d, %d)" % (self.val['m_coord']['line'], self.val['m_coord']['column'])
def build_pretty_printer():
pp = gdb.printing.RegexpCollectionPrettyPrinter("kakoune")
pp.add_printer('memoryview', '^Kakoune::memoryview<.*>$', MemoryView)
pp.add_printer('LineAndColumn', '^Kakoune::LineAndColumn<.*>$', LineAndColumn)
pp.add_printer('BufferCoord', '^Kakoune::BufferCoord$', LineAndColumn)
pp.add_printer('DisplayCoord', '^Kakoune::DisplayCoord$', LineAndColumn)
pp.add_printer('BufferIterator', '^Kakoune::BufferIterator$', BufferIterator)
return pp