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26 lines (22 loc) · 932 Bytes

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build_code.js

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var fs = require("fs");

var file = process.argv[2];

var input = fs.readFileSync(file, "utf8");

var included = /\/\/ include_code(.*)\n(?:\/\/.*\n)*\s*(?:\[.*\n)*\[source,.*?\]\n----\n([\s\S]*?\n)----/g, m;

var files = Object.create(null);

var defaultFile = "code/chapter/" + file.replace(".txt", ".js");

while (m = included.exec(input)) {

var snippet = m[2], directive = m[1], file = defaultFile;

snippet = snippet.replace(/(\n|^)\s*\/\/ →.*\n/g, "$1");

if (directive.indexOf("strip_log") > -1)

snippet = snippet.replace(/(\n|^)\s*console\.log\(.*\);\n/g, "$1");

if (m = directive.match(/top_lines:\s*(\d+)/))

snippet = snippet.split("\n").slice(0, Number(m[1])).join("\n") + "\n";

if (m = directive.match(/\s>(\S+)/))

file = m[1];

if (file in files)

files[file].push(snippet);

else

files[file] = [snippet];

}

for (var file in files)

fs.writeFileSync(file, files[file].join("\n"), "utf8");