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3 | function factory (type, config, load, typed) {
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4 | const parse = load(require('../parse'))
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5 |
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6 | /**
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7 | * Parse an expression. Returns a node tree, which can be evaluated by
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8 | * invoking node.eval().
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9 | *
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10 | * Note the evaluating arbitrary expressions may involve security risks,
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11 | * see [http://mathjs.org/docs/expressions/security.html](http://mathjs.org/docs/expressions/security.html) for more information.
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12 | *
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13 | * Syntax:
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14 | *
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15 | * math.parse(expr)
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16 | * math.parse(expr, options)
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17 | * math.parse([expr1, expr2, expr3, ...])
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18 | * math.parse([expr1, expr2, expr3, ...], options)
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19 | *
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20 | * Example:
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21 | *
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22 | * const node1 = math.parse('sqrt(3^2 + 4^2)')
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23 | * node1.compile().eval() // 5
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24 | *
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25 | * let scope = {a:3, b:4}
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26 | * const node2 = math.parse('a * b') // 12
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27 | * const code2 = node2.compile()
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28 | * code2.eval(scope) // 12
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29 | * scope.a = 5
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30 | * code2.eval(scope) // 20
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31 | *
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32 | * const nodes = math.parse(['a = 3', 'b = 4', 'a * b'])
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33 | * nodes[2].compile().eval() // 12
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34 | *
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35 | * See also:
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36 | *
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37 | * eval, compile
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38 | *
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39 | * @param {string | string[] | Matrix} expr Expression to be parsed
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40 | * @param {{nodes: Object<string, Node>}} [options] Available options:
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41 | * - `nodes` a set of custom nodes
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42 | * @return {Node | Node[]} node
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43 | * @throws {Error}
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44 | */
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45 | return typed('parse', {
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46 | 'string | Array | Matrix': parse,
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47 | 'string | Array | Matrix, Object': parse
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48 | })
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49 | }
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50 |
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51 | exports.name = 'parse'
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52 | exports.factory = factory
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