indent_list_multiitem.py

import sublime_plugin
import re
try:
    from MarkdownEditing.mdeutils import *
except ImportError:
    from mdeutils import *


class IndentListMultiitemCommand(MDETextCommand):

    def run(self, edit, reverse=False):
        todo = []
        for region in self.view.sel():
            lines = self.view.line(region)
            lines = self.view.split_by_newlines(lines)
            for line in lines:
                line_content = self.view.substr(line)

                if len(line_content) == 0:
                    continue

                # Determine how to indent (tab or spaces)
                if self.view.settings().get("translate_tabs_to_spaces"):
                    tab_str = self.view.settings().get("tab_size", 4) * " "

                else:
                    tab_str = "\t"

                if re.match("^\\s*(>\\s*)?[*+\\-]\\s+(.*)$", line_content):
                    bullets = self.view.settings().get("mde.list_indent_bullets", ["*", "-", "+"])
                    bullet_pattern = '([' + ''.join(re.escape(i) for i in bullets) + '])'
                    bullet_pattern_a = "^\\s*(?:>\\s*)?("
                    bullet_pattern_b = ")\\s+"
                    new_line = line_content
                    # Transform the bullet to the next/previous bullet type
                    if self.view.settings().get("mde.list_indent_auto_switch_bullet", True):
                        for key, bullet in enumerate(bullets):
                            re_bullet = re.escape(bullet)
                            search_pattern = bullet_pattern_a + \
                                re_bullet + bullet_pattern_b
                            if re.search(search_pattern, line_content):
                                if reverse and new_line.startswith(bullet) and key is 0:
                                    # In this case, do not switch bullets
                                    continue
                                new_bullet = bullets[(key + (1 if not reverse else -1)) % len(bullets)]
                                new_line = re.sub(re_bullet, new_bullet, new_line, 1)
                                break
                    if not reverse:
                        # Do the indentation
                        new_line = re.sub(bullet_pattern, tab_str + "\\1", new_line, 1)

                    else:
                        # Do the unindentation
                        new_line = re.sub(tab_str + bullet_pattern, "\\1", new_line, 1)
                else:
                    if not reverse:
                        new_line = tab_str + line_content
                    else:
                        new_line = re.sub(tab_str, "", line_content, 1)

                # Insert the new item
                todo.append([line, new_line])

        while len(todo) > 0:
            j = todo.pop()
            self.view.replace(edit, j[0], j[1])