38 lines
955 B
JavaScript
38 lines
955 B
JavaScript
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#!/usr/bin/env node
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// CLI for querying safe-regex for safety analysis
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// Input: JSON-formatted file with an object with key 'pattern'
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// Output: STDOUT: JSON-formatted object with new key 'isSafe' and value 0 or 1
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// STDERR: Progress updates
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var safe = require('../'),
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fs = require('fs');
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if (process.argv.length != 3) {
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console.error(`Usage: ${process.argv[1]} pattern.json`);
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process.exit(1);
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}
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const file = process.argv[2];
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// Get pattern
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const cont = fs.readFileSync(file, 'utf-8');
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let pattern = JSON.parse(cont);
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// Can analyze? Is safe?
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let canAnalyze = 0;
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let isSafe = 0;
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try {
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isSafe = safe(pattern.pattern) ? 1 : 0;
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canAnalyze = 1;
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} catch (e) {
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canAnalyze = 0;
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isSafe = 'unknown';
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}
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pattern.canAnalyze = canAnalyze;
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pattern.isSafe = isSafe;
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// Emit.
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console.error(`Pattern /${pattern.pattern}/: canAnalyze ${pattern.canAnalyze} isSafe ${pattern.isSafe}`);
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console.log(JSON.stringify(pattern));
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process.exit(0);
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