111 lines
3.7 KiB
Python
111 lines
3.7 KiB
Python
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import sublime, sublime_plugin
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def expand_to_line(view, region):
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"""
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As view.full_line, but doesn't expand to the next line if a full line is
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already selected
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"""
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if not (region.a == region.b) and view.substr(region.end() - 1) == '\n':
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return sublime.Region(view.line(region).begin(), region.end())
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else:
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return view.full_line(region)
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def extract_line_blocks(view):
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blocks = [expand_to_line(view, s) for s in view.sel()]
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if len(blocks) == 0:
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return blocks
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# merge any adjacent blocks
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merged_blocks = [blocks[0]]
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for block in blocks[1:]:
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last_block = merged_blocks[-1]
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if block.begin() <= last_block.end():
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merged_blocks[-1] = sublime.Region(last_block.begin(), block.end())
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else:
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merged_blocks.append(block)
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return merged_blocks
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class SwapLineUpCommand(sublime_plugin.TextCommand):
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def run(self, edit):
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blocks = extract_line_blocks(self.view)
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# No selection
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if len(blocks) == 0:
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return
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# Already at BOF
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if blocks[0].begin() == 0:
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return
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# Add a trailing newline if required, the logic is simpler if every line
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# ends with a newline
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add_trailing_newline = (self.view.substr(self.view.size() - 1) != '\n') and blocks[-1].b == self.view.size()
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if add_trailing_newline:
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# The insert can cause the selection to move. This isn't wanted, so
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# reset the selection if it has moved to EOF
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sel = [r for r in self.view.sel()]
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self.view.insert(edit, self.view.size(), '\n')
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if self.view.sel()[-1].end() == self.view.size():
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# Selection has moved, restore the previous selection
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self.view.sel().clear()
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for r in sel:
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self.view.sel().add(r)
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# Fix up any block that should now include this newline
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blocks[-1] = sublime.Region(blocks[-1].a, blocks[-1].b + 1)
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# Process in reverse order
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blocks.reverse()
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for b in blocks:
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prev_line = self.view.full_line(b.begin() - 1)
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self.view.insert(edit, b.end(), self.view.substr(prev_line))
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self.view.erase(edit, prev_line)
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if add_trailing_newline:
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# Remove the added newline
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self.view.erase(edit, sublime.Region(self.view.size() - 1, self.view.size()))
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# Ensure the selection is visible
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self.view.show(self.view.sel(), False)
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class SwapLineDownCommand(sublime_plugin.TextCommand):
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def run(self, edit):
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blocks = extract_line_blocks(self.view)
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# No selection
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if len(blocks) == 0:
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return
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# Already at EOF
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if blocks[-1].end() == self.view.size():
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return
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# Add a trailing newline if required, the logic is simpler if every line
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# ends with a newline
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add_trailing_newline = (self.view.substr(self.view.size() - 1) != '\n')
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if add_trailing_newline:
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# No block can be at EOF (checked above), so no need to fix up the
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# blocks
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self.view.insert(edit, self.view.size(), '\n')
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# Process in reverse order
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blocks.reverse()
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for b in blocks:
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next_line = self.view.full_line(b.end())
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contents = self.view.substr(next_line)
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self.view.erase(edit, next_line)
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self.view.insert(edit, b.begin(), contents)
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if add_trailing_newline:
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# Remove the added newline
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self.view.erase(edit, sublime.Region(self.view.size() - 1, self.view.size()))
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# Ensure the selection is visible
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self.view.show(self.view.sel(), False)
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