37 lines
1.1 KiB
Python
37 lines
1.1 KiB
Python
from sys import stderr, argv;
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from base64 import b64encode, b64decode;
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from STPyV8 import JSContext, JSClass;
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# Create context with methods for file i/o
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class Base64Context(JSClass):
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def read_file(self, path):
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with open(path, "rb") as f:
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data = f.read();
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return b64encode(data).decode("ascii");
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def write_file(self, data, path):
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with open(path, "wb") as f:
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f.write(b64decode(data));
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globals = Base64Context();
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# Read xlsx.full.min.js
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with open("xlsx.full.min.js", "r") as f:
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sheetjs = f.read();
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# The JSContext starts and cleans up the V8 engine
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with JSContext(globals) as ctxt:
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# Load SheetJS library and display version number
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ctxt.eval(sheetjs);
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version = ctxt.eval("XLSX.version");
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print(f"SheetJS Version: {version}", file=stderr);
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# Parse workbook
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ctxt.eval(f"globalThis.wb = XLSX.read(read_file('{argv[1]}'), {{type:'base64'}}); void 0;");
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# Print CSV from first worksheet
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csv = ctxt.eval("XLSX.utils.sheet_to_csv(wb.Sheets[wb.SheetNames[0]]);");
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print(csv);
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# Generate XLSB
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xlsb = ctxt.eval("XLSX.write(wb, {type: 'base64', bookType: 'xlsb'})");
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globals.write_file(xlsb,"SheetJSSTPyV8.xlsb");
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