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Rene Schallner
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Dec 11, 2021
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,123 @@ | ||
| local Job = require("plenary.job") | ||
|
|
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| local M = {} | ||
| local hashtag_re = "(^|\\s)#[a-zA-Z]+[a-zA-Z0-9/\\-_]*" | ||
| local colon_re = "(^|\\s):[a-zA-Z]+[a-zA-Z0-9/\\-_]*:" | ||
| local yaml_re = "(^|\\s)tags:\\s*\\[([a-zA-Z]+[a-zA-Z0-9/\\-_]*(,\\s)*)*]" | ||
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| local function command_find_all_tags(opts) | ||
| opts = opts or {} | ||
| opts.cwd = opts.cwd or "." | ||
| local re = hashtag_re | ||
|
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| if opts.tag_notation == ":tag:" then | ||
| re = colon_re | ||
| end | ||
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| if opts.tag_notation == "yaml-bare" then | ||
| re = yaml_re | ||
| end | ||
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| return "rg", { "--vimgrep", "-o", re, "--", opts.cwd } | ||
| end | ||
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| local function trim(s) | ||
| return (string.gsub(s, "^%s*(.-)%s*$", "%1")) | ||
| end | ||
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| local function insert_tag(tbl, tag, entry) | ||
| entry.t = tag | ||
| if tbl[tag] == nil then | ||
| tbl[tag] = { entry } | ||
| else | ||
| tbl[tag][#tbl[tag] + 1] = entry | ||
| end | ||
| end | ||
|
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||
| local function split(line, sep, n) | ||
| local startpos = 0 | ||
| local endpos | ||
| local ret = {} | ||
| for _ = 1, n - 1 do | ||
| endpos = line:find(sep, startpos + 1) | ||
| ret[#ret + 1] = line:sub(startpos + 1, endpos - 1) | ||
| startpos = endpos | ||
| end | ||
| -- now the remainder | ||
| ret[n] = line:sub(startpos + 1) | ||
| return ret | ||
| end | ||
|
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||
| local function yaml_to_tags(line, entry, ret) | ||
| local _, startpos = line:find("tags%s*:%s*%[") | ||
| local global_end = line:find("%]") | ||
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| line = line:sub(startpos + 1, global_end) | ||
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| local i = 1 | ||
| local j | ||
| local prev_i | ||
| local tag | ||
| while true do | ||
| i, j = line:find("%s*.*%s*,", i) | ||
| if i == nil then | ||
| tag = line:sub(prev_i) | ||
| tag = tag:gsub("%s*(.*)%s*", "%1") | ||
| else | ||
| tag = line:sub(i, j) | ||
| tag = tag:gsub("%s*(.*)%s*,", "%1") | ||
| end | ||
|
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||
| local new_entry = {} | ||
| new_entry.t = tag | ||
| new_entry.l = entry.l | ||
| new_entry.fn = entry.fn | ||
| new_entry.c = startpos + (i or prev_i) | ||
| insert_tag(ret, tag, new_entry) | ||
| if i == nil then | ||
| break | ||
| end | ||
| i = j + 1 | ||
| prev_i = i | ||
| end | ||
| end | ||
|
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||
| local function parse_entry(opts, line, ret) | ||
| local s = split(line, ":", 4) | ||
| local fn, l, c, t = s[1], s[2], s[3], s[4] | ||
|
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| t = trim(t) | ||
| local entry = { fn = fn, l = l, c = c } | ||
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| if opts.tag_notation == "yaml-bare" then | ||
| yaml_to_tags(t, entry, ret) | ||
| elseif opts.tag_notation == ":tag:" then | ||
| insert_tag(ret, t, entry) | ||
| else | ||
| insert_tag(ret, t, entry) | ||
| end | ||
| end | ||
|
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||
| M.do_find_all_tags = function(opts) | ||
| local cmd, args = command_find_all_tags(opts) | ||
| -- print(cmd .. " " .. vim.inspect(args)) | ||
| local ret = {} | ||
| local _ = Job | ||
| :new({ | ||
| command = cmd, | ||
| args = args, | ||
| enable_recording = true, | ||
| on_exit = function(j, return_val) | ||
| for _, line in pairs(j:result()) do | ||
| parse_entry(opts, line, ret) | ||
| end | ||
| end, | ||
| on_stderr = function(err, data, _) | ||
| print("error: " .. tostring(err) .. "data: " .. data) | ||
| end, | ||
| }) | ||
| :sync() | ||
| -- print("final results: " .. vim.inspect(ret)) | ||
| return ret | ||
| end | ||
| return M |
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