| 1 | /**
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| 2 | * 元数据中表达式需要的一些函数
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| 3 | */
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| 4 |
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| 5 | // {{***}}
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| 6 | const reg = /^\s*\{{2}([\s\S]+)\}{2}\s*$/m
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| 7 |
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| 8 | // {{{***}}}
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| 9 | const reg1 = /^\s*\{{3}([\s\S]+)\}{3}\s*$/m
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| 10 |
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| 11 | function isExpression(v) {
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| 12 | return reg.test(v) || reg1.test(v)
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| 13 | }
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| 14 |
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| 15 | function getExpressionBody(v) {
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| 16 | if (reg1.test(v)) {
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| 17 | //去掉前后{{{ }}}
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| 18 | return v.replace(reg1, (word, group) => group)
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| 19 | }
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| 20 |
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| 21 | if (reg.test(v)) {
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| 22 | //return + 去掉前后{{ }}
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| 23 | return "return " + v.replace(reg, (word, group) => group)
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| 24 | }
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| 25 |
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| 26 | return v
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| 27 | }
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| 28 |
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| 29 | export default {
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| 30 | isExpression,
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| 31 | getExpressionBody
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| 32 | } |
| \ | No newline at end of file |