mirror of
https://github.com/kanaka/mal.git
synced 2024-09-19 09:38:28 +03:00
40 lines
960 B
CoffeeScript
40 lines
960 B
CoffeeScript
# IMPORTANT: choose one
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RL_LIB = "libreadline" # NOTE: libreadline is GPL
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#RL_LIB = "libedit"
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HISTORY_FILE = require('path').join(process.env.HOME, '.mal-history')
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rlwrap = {} # namespace for this module in web context
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ffi = require('ffi-napi')
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fs = require('fs')
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rllib = ffi.Library(RL_LIB, {
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'readline': ['string', ['string']],
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'add_history': ['int', ['string']]})
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rl_history_loaded = false
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exports.readline = rlwrap.readline = (prompt = 'user> ') ->
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if !rl_history_loaded
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rl_history_loaded = true
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lines = []
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if fs.existsSync(HISTORY_FILE)
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lines = fs.readFileSync(HISTORY_FILE).toString().split("\n");
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# Max of 2000 lines
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lines = lines[Math.max(lines.length - 2000, 0)..]
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rllib.add_history(line) for line in lines when line != ""
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line = rllib.readline prompt
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if line
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rllib.add_history line
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try
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fs.appendFileSync HISTORY_FILE, line + "\n"
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catch exc
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true
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line
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# vim: ts=2:sw=2
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