[mini.ai] How to add chinese bracket as textObject?

[soluty]

Contributing guidelines

• I have read CODE_OF_CONDUCT.md

Module(s)

mini.ai

Question

this is my options, and i want to use vab, and vib, to select chinese bracket as a textobject, but
vab and vib will all select outer textobject, looks like inner （ textobject has no use, how can i fix this?

    opts.custom_textobjects.b = {
        { "%b()", "%b[]", "%b{}", ai.gen_spec.pair("（", "）"), ai.gen_spec.pair("【", "】") }, 
        "^.().*().$",
      }

[drowning-cat]

In your case, I’d do it this way, though maybe @echasnovski has a better solution:

Warning

It seems your quotes are treated as multiple chars, so %b【】 doesn’t work in Lua.

b = {
  {
    MiniAi.gen_spec.pair("【", "】"),
    MiniAi.gen_spec.pair("(", ")", { type = "balanced" }),
    MiniAi.gen_spec.pair("[", "]", { type = "balanced" }),
    MiniAi.gen_spec.pair("{", "}", { type = "balanced" }),
  },
},

[echasnovski]

Yes, this look like the best solution here. Here is a bit fuller example (because MiniAi is usually not present at the stage of defining this data; i.e. before setup()):

local ai = require('mini.ai')
ai.setup({
  custom_textobjects = {
    b = {
      {
        ai.gen_spec.pair('【', '】'),
        ai.gen_spec.pair('（', '）'),
        ai.gen_spec.pair('(', ')', { type = 'balanced' }),
        ai.gen_spec.pair('[', ']', { type = 'balanced' }),
        ai.gen_spec.pair('{', '}', { type = 'balanced' }),
      },
    },
  },
})

As to why the solution in the question doesn't work is because the "^.().*().$" selects only a single-byte first and last character. While used Chinese brackets are multi-byte.

[soluty]

thank you very much , this works well