触发每个字母数字按键的动作

我在插件的Default (Windows).sublime-keymap文件中有以下几行:

...
{ "keys": ["ctrl+shift+a"], "command": "table_editor_align", "context":
    [
        { "key": "setting.enable_table_editor", "operator": "equal", "operand": true, "match_all": true },
        { "key": "preceding_text", "operator": "regex_contains", "operand": "^\\s*\\|", "match_all": true },
        { "key": "following_text", "operator": "regex_contains", "operand": "$", "match_all": true }
    ]
},
...

相反,触发该命令只当ctrl+ shift+ a,我想触发此命令每次字母数字按键后(包括AZ,az,0-9,为什么不也口音E,A,C等,我们使用即所有字符写作时)？

"keys": ["[a-zA-Z0-9_]"]

似乎不起作用.

注意:插件当前是sublime_plugin.TextCommand的子类,我认为保持这个是必须的.我试图修改的插件是https://github.com/vkocubinsky/SublimeTableEditor,我希望在每次按键后自动重新对齐,而不是在每个CTRL + SHIFT + A之后:

我不知道一次将键绑定到一大类键,所以为了做你想做的事,你必须一次为每个键创建一个单独的映射,这是相当笨拙,很可能不是一个好主意.

[编辑]实际上有一种方法可以做到这一点; 我在答案结尾处添加了更多信息[/ edit]

从一些简单的测试中可以看出,您感兴趣的键(输入文本)直接由Sublime核心处理,除非您为它们提供映射.也就是说,它们颠覆了正常的命令机制,这意味着无论何时插入文本并重新格式化都无法捕获.

正如MattDMO所建议的那样,一种方法是使用on_modified处理程序来跟踪缓冲区何时被修改,然后以这种方式触发重新排列.

可以执行类似操作的示例插件如下:

import sublime
import sublime_plugin
import re

class TableFormatEventListener(sublime_plugin.EventListener):
    def __init__(self):
        self._views = dict()
        self.regex = re.compile(r"\s*\|")

    def on_modified(self, view):
        # Only for views with table editing enabled that are not already being
        # modified
        if (view.settings().get("enable_table_editor", False) and
                self._views.get(view.id(), False) is False):

            for s in view.sel():
                line = view.substr(view.line(s.begin()))
                prior = view.substr(s.begin() - 1) if s.begin() > 0 else ""

                # Only if all cursors are inside of a table row and the
                # character prior to the cursor is not a space
                if self.regex.match(line) is None or prior == " ":
                    return

            # Perform the realignment
            self._views[view.id()] = True
            view.run_command("table_editor_align")
            self._views[view.id()] = False

    def on_text_command(self, view, cmd, args):
        # Don't trigger reformatting while an undo is happening
        if cmd == "undo":
            self._views[view.id()] = True

    def on_post_text_command(self, view, cmd, args):
        # Undo is complete; resume reformat handling
        if cmd == "undo":
            self._views[view.id()] = False

import sublime
import sublime_plugin

class TextAndAlignTableCommand(sublime_plugin.TextCommand):
    def run(self, edit, character):
        self.view.run_command("insert", {"characters": character})
        if character != " ":
            self.view.run_command("table_editor_align")

{ "keys": [""], "command": "text_and_align_table", "context":
    [
        { "key": "setting.enable_table_editor", "operator": "equal", "operand": true, "match_all": true },
        { "key": "preceding_text", "operator": "regex_contains", "operand": "^\\s*\\|", "match_all": true },
        { "key": "following_text", "operator": "regex_match", "operand": "\\s*\\|.*$", "match_all": true }
    ]
},