mirror of
https://github.com/kanaka/mal.git
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38 lines
1.3 KiB
JavaScript
38 lines
1.3 KiB
JavaScript
import { _symbol, _symbol_Q, _list_Q, _vector_Q, _hash_map_Q, Atom } from './types'
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export function pr_str(obj, print_readably) {
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if (typeof print_readably === 'undefined') { print_readably = true }
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var _r = print_readably
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if (_list_Q(obj)) {
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var ret = obj.map(function(e) { return pr_str(e,_r) })
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return "(" + ret.join(' ') + ")"
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} else if (_vector_Q(obj)) {
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var ret = obj.map(function(e) { return pr_str(e,_r) })
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return "[" + ret.join(' ') + "]"
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} else if (_hash_map_Q(obj)) {
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var ret = []
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for (let [k,v] of obj) {
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ret.push(pr_str(k,_r), pr_str(v,_r))
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}
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return "{" + ret.join(' ') + "}"
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} else if (typeof obj === "string") {
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if (obj[0] === '\u029e') {
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return ':' + obj.slice(1)
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} else if (_r) {
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return '"' + obj.replace(/\\/g, "\\\\")
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.replace(/"/g, '\\"')
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.replace(/\n/g, "\\n") + '"' // string
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} else {
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return obj
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}
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} else if (_symbol_Q(obj)) {
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return Symbol.keyFor(obj)
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} else if (obj === null) {
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return "nil"
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} else if (obj instanceof Atom) {
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return "(atom " + pr_str(obj.val,_r) + ")"
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} else {
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return obj.toString()
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}
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}
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