refactor(config): default icons to ascii (#55)

* refactor(config): default icons to ascii

Problem: default icons used unicode characters (○, ✓, ●, ▸, ·, ↺)
which render poorly in some terminals and font configurations.

Solution: replace defaults with ascii equivalents (-, x, !, >, ., ~).
Users can still override to unicode or nerd font icons via config.

* ci: ignore library type checking

.luarc.json

@@ -2,6 +2,7 @@
   "runtime.version": "LuaJIT",
   "runtime.path": ["lua/?.lua", "lua/?/init.lua"],
   "diagnostics.globals": ["vim", "jit"],
+  "diagnostics.libraryFiles": "Disable",
   "workspace.library": [
     "$VIMRUNTIME/lua",
     "${3rd}/luv/library",

README.md

@@ -26,18 +26,18 @@ luarocks install pending.nvim
 
 ## Icons
 
-pending.nvim renders task status and metadata using configurable icon characters. The defaults use plain unicode (no nerd font required):
+pending.nvim renders task status and metadata using configurable icon characters. The defaults are ASCII-only (no unicode or nerd font required):
 
 ```lua
 vim.g.pending = {
   icons = {
-    pending = '○', done = '✓', priority = '●',
-    header = '▸', due = '·', recur = '↺', category = '#',
+    pending = '-', done = 'x', priority = '!',
+    header = '>', due = '.', recur = '~', category = '#',
   },
 }
 ```
 
-See `:help pending.Icons` for nerd font examples.
+See `:help pending.Icons` for unicode and nerd font examples.
 
 ## Acknowledgements
 

doc/pending.txt

@@ -664,12 +664,12 @@ Fields: ~
 
     {icons}              (table)                          *pending.Icons*
                          Icon characters displayed in the buffer. Fields:
-                           {pending}   Uncompleted task icon. Default: '○'
-                           {done}      Completed task icon. Default: '✓'
-                           {priority}  Priority task icon. Default: '●'
-                           {header}    Category header prefix. Default: '▸'
-                           {due}       Due date prefix. Default: '·'
-                           {recur}     Recurrence prefix. Default: '↺'
+                           {pending}   Uncompleted task icon. Default: '-'
+                           {done}      Completed task icon. Default: 'x'
+                           {priority}  Priority task icon. Default: '!'
+                           {header}    Category header prefix. Default: '>'
+                           {due}       Due date prefix. Default: '.'
+                           {recur}     Recurrence prefix. Default: '~'
                            {category}  Category label prefix. Default: '#'
 
 ==============================================================================

lua/pending/config.lua

@@ -82,12 +82,12 @@ local defaults = {
   },
   sync = {},
   icons = {
-    pending = '○',
-    done = '✓',
-    priority = '●',
-    header = '▸',
-    due = '·',
-    recur = '↺',
+    pending = '-',
+    done = 'x',
+    priority = '!',
+    header = '>',
+    due = '.',
+    recur = '~',
     category = '#',
   },
 }

scripts/demo-init.lua

@@ -4,15 +4,6 @@ vim.fn.mkdir(tmpdir, 'p')
 
 vim.g.pending = {
   data_path = tmpdir .. '/tasks.json',
-  icons = {
-    pending = '○',
-    done = '✓',
-    priority = '●',
-    header = '▸',
-    due = '·',
-    recur = '↺',
-    category = '#',
-  },
 }
 
 local store = require('pending.store')

spec/icons_spec.lua

@@ -15,23 +15,23 @@ describe('icons', function()
 
   it('has default icon values', function()
     local icons = config.get().icons
-    assert.equals('○', icons.pending)
-    assert.equals('✓', icons.done)
-    assert.equals('●', icons.priority)
-    assert.equals('▸', icons.header)
-    assert.equals('·', icons.due)
-    assert.equals('↺', icons.recur)
+    assert.equals('-', icons.pending)
+    assert.equals('x', icons.done)
+    assert.equals('!', icons.priority)
+    assert.equals('>', icons.header)
+    assert.equals('.', icons.due)
+    assert.equals('~', icons.recur)
     assert.equals('#', icons.category)
   end)
 
   it('allows overriding individual icons', function()
-    vim.g.pending = { icons = { pending = '-', done = 'x' } }
+    vim.g.pending = { icons = { pending = '○', done = '✓' } }
     config.reset()
     local icons = config.get().icons
-    assert.equals('-', icons.pending)
-    assert.equals('x', icons.done)
-    assert.equals('●', icons.priority)
-    assert.equals('▸', icons.header)
+    assert.equals('○', icons.pending)
+    assert.equals('✓', icons.done)
+    assert.equals('!', icons.priority)
+    assert.equals('>', icons.header)
   end)
 
   it('allows overriding all icons', function()