b3aa1d9c63
Revert the bespoke __prompt()/__prompt2() function mechanism from issue #09 and return to stock Lua's _PROMPT/_PROMPT2 globals (which already support dynamic prompts via __tostring metatables). Set default _PROMPT = "lush> " in doREPL if not already defined by config.
28 lines
964 B
Markdown
28 lines
964 B
Markdown
# 21 — Prompt redesign
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**Status:** done
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Reconsider the prompt system. Some observations:
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## Functional prompts via metatables
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Functional prompts can be achieved in pure Lua without special support:
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```lua
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_PROMPT = setmetatable({}, { __tostring = function(self)
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local user = os.getenv("USER") or os.getenv("USERNAME") or "user"
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local cwd = os.getenv("PWD") or io.popen("pwd"):read("*l") or "?"
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return string.format("%s:%s$ ", user, cwd)
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end })
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```
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This suggests our bespoke prompt implementation (issue #09) may be overengineered. A template-based approach or just documenting the metatable trick might suffice.
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## Prompt2 depth
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Prompt2 is rigid — opening deeper and deeper blocks results in a prompt at the same level. Bash doesn't do depth indication either, so maybe this is fine. Options:
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- Pass depth into `_PROMPT2` somehow
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- Add indentation (spaces/tabs) after prompt2 on the C side
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- Accept it as-is (bash doesn't do this either)
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