d3/bin/locale at master · blehman/d3

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#!/usr/bin/env node

var fs = require("fs"),

puts = require("util").puts,

formats = {},

kvRe = /=/,

valueRe = /;/g,

quotedRe = /"([^"]*?)"/g,

data = [];

process.stdin.resume();

process.stdin.setEncoding("utf8");

process.stdin.on("data", function(chunk) { data.push(chunk); });

process.stdin.on("end", write);

function write() {

data.join("\n").split(/\n/g).forEach(function(line) {

var i = line.match(kvRe);

if (i && (i = i.index)) {

var value = line.substring(i + 1).replace(quotedRe, "$1").split(valueRe);

formats[line.substring(0, i)] = value;

}

});

puts(fs.readFileSync(process.argv[2], "utf8").replace(/\{([a-z_]+)\}/g, function(d, k) {

d = formats[k];

return k === "grouping"

? d === "127" || d === "0" ? null : "[" + d.map(Number).join(", ") + "]"

: d == null ? null : d.length > 1 ? "[" + d.map(quote).join(", ") + "]" : quote(d[0]);

}));

}

function quote(d) { return '"' + d + '"'; }