58 lines
1.4 KiB
JavaScript
58 lines
1.4 KiB
JavaScript
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let openers = {
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'{': '}',
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'[': ']',
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'(': ')'
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};
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let specialOpeners = {
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':': 'wildcard'
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};
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function parser(str, context = '{') {
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str = str.replaceAll(/^\s+([^\s]+)/gm,'$1')
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str = str.replaceAll(/([^\s]+)\s+$/gm,'$1')
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let nextI = str.search(/[^A-Za-z0-9\s]/);
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if (context == '[') {
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nextI = str.search(/[\]]/);
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}
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if (nextI == -1) nextI = 0;
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let nextChar = str[nextI];
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let special = specialOpeners[context] || '';
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let sp = (special == 'wildcard');
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if (nextChar == openers[context]) {
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return { context, str: str.slice(0, nextI), next: str.slice(nextI + 1), end: true};
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} else if (openers[context] || sp) {
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let args = [];
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let nextStr = str.slice(nextI + 1);
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while (nextStr && nextStr.length > 0) {
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args.push(parser(nextStr, nextChar));
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let a = args[args.length - 1];
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nextStr = a.next;
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if (a.str == '') {
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args.pop();
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}
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if (a.end) break;
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}
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let o = { context: str.slice(0, nextI), args, next: nextStr, op: context };
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return o;
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} else {
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return { context, str: str.slice(0, nextI), next: str.slice(nextI + 1)};
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}
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}
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let data = parser(`
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on:start {
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echo[Hello World!]
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echo[Hello World!]
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}
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`);
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console.log(JSON.stringify(data, undefined, 1));
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