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cuttersanborn.js
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cuttersanborn.js
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#!/usr/bin/env node
const process = require("process");
const {basename} = require("path");
const Promise = require("bluebird");
const fs = Promise.promisifyAll(require("fs"));
function showHelp(progname) {
console.log("A Cutter-Sanborn Four-Figure number generator");
console.log(`
options:
--help
shows the help
--file <filename>
A comma-separated list of names.
If <filename> is -, then input is read from stdin
--outputname
Shows the name in output
--name=lastname,firstname
examples:
cuttersanborn --name=Adams,John --name=Gabel,Linda --name="Andrews, Mary Helen"
cuttersanborn --outputName --name=Adams,John --name=Gabel,Linda
cuttersanborn --outputName --file sample.txt
`);
}
async function main() {
let generateCutter = require("./lib");
let progname = basename(process.argv[1]);
let args = require("minimist")(process.argv.slice(2));
if (args.help) {
showHelp(progname);
process.exit(2);
}
let parseNameStr = str => {
if (typeof str != "string") {
console.error(`** name must be a string: ${str}`);
return null;
}
if (!str.trim()) {
return null;
}
let [lname, fname] = str.split(",").map(s => s.trim());
if (lname && fname)
return {lname, fname};
console.error(`** ignoring invalid name: ${str}`);
return null;
}
let names = [];
if (args.file) {
try {
let contents = await fs.readFileAsync(args.file, "utf-8");
names = contents.split("\n").map(parseNameStr);
names = names.filter(o=>o); // remove nulls
} catch (e) {
console.error(`** failed to read file: ${args.file}`);
process.exit(1);
}
}
if (Array.isArray(args.name)) {
let names_ = args.name.map(parseNameStr).filter(o=>o);
names = names.concat(names_);
} else if (typeof args.name == "string") {
let obj = parseNameStr(args.name);
if (obj)
names = names.concat([obj]);
}
if (names.length == 0) {
showHelp(progname);
process.exit(2);
}
for (let {lname, fname} of names) {
let cutterNum = generateCutter(lname, fname)
if (!cutterNum) {
console.error(`** failed to generate number for ${lname},${fname}`);
} else {
let output;
if (args.outputname) {
output = `${lname},${fname} ${cutterNum}`;
} else {
output = cutterNum;
}
console.log(output);
}
}
}
main();