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cli.js (935B)

      1 #!/usr/bin/env node
      2 // Simple CLI for KaTeX.
      3 // Reads TeX from stdin, outputs HTML to stdout.
      4 /* eslint no-console:0 */
      5 
      6 const katex = require("./");
      7 let input = "";
      8 
      9 // Skip the first two args, which are just "node" and "cli.js"
     10 const args = process.argv.slice(2);
     11 
     12 if (args.indexOf("--help") !== -1) {
     13     console.log(process.argv[0] + " " + process.argv[1] +
     14                 " [ --help ]" +
     15                 " [ --display-mode ]");
     16 
     17     console.log("\n" +
     18                 "Options:");
     19     console.log("  --help            Display this help message");
     20     console.log("  --display-mode    Render in display mode (not inline mode)");
     21     process.exit();
     22 }
     23 
     24 process.stdin.on("data", function(chunk) {
     25     input += chunk.toString();
     26 });
     27 
     28 process.stdin.on("end", function() {
     29     const options = { displayMode: args.indexOf("--display-mode") !== -1 };
     30     const output = katex.renderToString(input, options);
     31     console.log(output);
     32 });