How to know which of my fonts do or don't support certain glyphs?


Question

I have a long list of glyphs with various Unicode points across several Unicode blocks that I need to represent in a monospaced form (which mean with a single font). How I can know which glyph the font does not support in that list?

I tried Microsoft Word, Open Office, Notepad++ and some others, but even ᴡindows® Notepad tries to substitute unknown characters from glyphs in other fonts instead of using the replacement character directly. Sometimes it even substitute characters whereas they exist in the font

Opening a font editor and checking Unicode points one by one would definitely takes hours. Below is the text I need to display properly

┌─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┲━━━━━━━━━┓ ┏━━━━━┱─────┬─────┬─────┐
│ ɶ   │     │ É   │     │     │     │     │ È   │     │     │ À   │ № № │     ┃         ┃ ┃ Ver ┃     │     │     │
│     │    │     │     │     │    │     │Espac│     │     │     │ № № │     ┃      ‎  ┃ ┃Num ⌓┃ ⁄ ⨸ │ ⋇ ⨉ │ ₋ ₋ │
┢━━━━━┷━┱───┴─┬───┴─┬───┴─┬───┴─┬───┴─┬───┴─┬───┴─┬───┴─┬───┴─┬───┴─┬───┴─┬───┺━┳━━━━━━━┫ ┡━━━━━╃─────┼─────┼─────┤
┃       ┃ ᴀ   │ ᴢ   │ ᴇ ℯ │ ʀ ℝ │ ᴛ   │ ʏ   │ ᴜ   │ ɪ 🛈 │ ᴏ ℴ │ ᴘ ℘ │     │     ┃Entrée ┃ │ ⁷   │ ⁸   │ ⁹   │     │
┃       ┃    │    │ ℯ ℰ │  ℛ │    │    │    │\t ℐ │ ℴ ℴ │  ℘ │    │     ┃   ⏎   ┃ │ ⁷   │ ⁸   │ ⁹   │     │
┣━━━━━━━┻┱────┴┬────┴┬────┴┬────┴┬────┴┬────┴┬────┴┬────┴┬────┴┬────┴┬────┴┬────┺┓      ┃ ├─────┼─────┼─────┤     │
┃        ┃ ᴁ   │ ꜱ   │ ᴅ   │ ꜰ ℉ │ ɢ   │ ʜ   │ ᴊ   │ ᴋ → │ ʟ ℓ │ ᴍ ℳ │ Ù   │     ┃      ┃ │ ⁴   │ ⁵   │ ⁶   │     │
┃ꜱɢᴀᴘ ⇬  ┃    │    │    │  ℱ │ ℊ ℊ │  ℋ │ \n  │    │ ℓ ℒ │ \r  │     │     ┃      ┃ │ ⁴   │ ⁵   │ ⁶   │ ₊ ₊ │
┣━━━━━━━┳┹────┬┴────┬┴────┬┴────┬┴────┬┴────┬┴────┬┴────┬┴────┬┴────┬┴────┲┷━━━━━┻━━━━━━┫ ├─────┼─────┼─────┼─────┤
┃       ┃     │ ᴡ   │ ꭥ   │ ᴄ ℃ │ ᴠ   │ ʙ ℬ │ ɴ   │     │     │     │     ┃             ┃ │ ¹   │ ²   │ ³   │     │
┃Shift ⇧┃     │    │    │    │   │  ℬ │    │     │     │     │     ┃Shift ⇧      ┃ │ ¹   │ ²   │ ³   │ Ent │
┣━━━━━━━╋━━━━━┷━┳━━━┷━━━┱─┴─────┴─────┴─────┴─────┴─────┴───┲━┷━━━━━╈━━━━━┻━┳━━━━━━━┳━━━┛ ├─────┴─────┼─────┤  ⏎  │
┃       ┃       ┃       ┃                                   ┃       ┃       ┃       ┃     │ ⁰         │     │     │
┃Ctrl   ┃Meta   ┃Alt    ┃                                   ┃AltGr ⇮┃Menu   ┃Ctrl   ┃     │ ⁰         │ ,   │     │
┗━━━━━━━┻━━━━━━━┻━━━━━━━┹───────────────────────────────────┺━━━━━━━┻━━━━━━━┻━━━━━━━┛     └───────────┴─────┴─────┘
1
6
8/20/2015 1:01:00 PM

Accepted Answer

Today I learnt about a new tool, which "was made just for your question". It was published in 2011 but I am sharing it here, less than one hour after I tested it:

http://blog.tavultesoft.com/2011/07/character-identifier-tool.html

Hope this helps, it is an .exe so will probably need Windows.

1
4/13/2016 4:10:00 PM

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