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19 <a href="index.html">All files</a> cucumber_expression_generator.js
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289<span class="cline-any cline-neutral">&nbsp;</span></td><td class="text"><pre class="prettyprint lang-js">const util = require('util')
290const ParameterTypeMatcher = require('./parameter_type_matcher')
291const ParameterType = require('./parameter_type')
292const CombinatorialGeneratedExpressionFactory = require('./combinatorial_generated_expression_factory')
293&nbsp;
294class CucumberExpressionGenerator {
295 constructor(parameterTypeRegistry) {
296 this._parameterTypeRegistry = parameterTypeRegistry
297 }
298&nbsp;
299 generateExpressions(text) {
300 const parameterTypeCombinations = []
301 const parameterTypeMatchers = this._createParameterTypeMatchers(text)
302 let expressionTemplate = ''
303 let pos = 0
304&nbsp;
305 // eslint-disable-next-line no-constant-condition
306 while (true) {
307 let matchingParameterTypeMatchers = []
308&nbsp;
309 for (const parameterTypeMatcher of parameterTypeMatchers) {
310 const advancedParameterTypeMatcher = parameterTypeMatcher.advanceTo(pos)
311 if (advancedParameterTypeMatcher.find) {
312 matchingParameterTypeMatchers.push(advancedParameterTypeMatcher)
313 }
314 }
315&nbsp;
316 if (matchingParameterTypeMatchers.length &gt; 0) {
317 matchingParameterTypeMatchers = matchingParameterTypeMatchers.sort(
318 ParameterTypeMatcher.compare
319 )
320&nbsp;
321 // Find all the best parameter type matchers, they are all candidates.
322 const bestParameterTypeMatcher = matchingParameterTypeMatchers[0]
323 const bestParameterTypeMatchers = matchingParameterTypeMatchers.filter(
324 m =&gt; ParameterTypeMatcher.compare(m, bestParameterTypeMatcher) === 0
325 )
326&nbsp;
327 // Build a list of parameter types without duplicates. The reason there
328 // might be duplicates is that some parameter types have more than one regexp,
329 // which means multiple ParameterTypeMatcher objects will have a reference to the
330 // same ParameterType.
331 // We're sorting the list so preferential parameter types are listed first.
332 // Users are most likely to want these, so they should be listed at the top.
333 let parameterTypes = []
334 for (const parameterTypeMatcher of bestParameterTypeMatchers) {
335 if (
336 parameterTypes.indexOf(parameterTypeMatcher.parameterType) === -1
337 ) {
338 parameterTypes.push(parameterTypeMatcher.parameterType)
339 }
340 }
341 parameterTypes = parameterTypes.sort(ParameterType.compare)
342&nbsp;
343 parameterTypeCombinations.push(parameterTypes)
344&nbsp;
345 expressionTemplate += escape(
346 text.slice(pos, bestParameterTypeMatcher.start)
347 )
348 expressionTemplate += '{%s}'
349&nbsp;
350 pos =
351 bestParameterTypeMatcher.start + bestParameterTypeMatcher.group.length
352 } else {
353 break
354 }
355&nbsp;
356 if (pos &gt;= text.length) {
357 break
358 }
359 }
360&nbsp;
361 expressionTemplate += escape(text.slice(pos))
362 return new CombinatorialGeneratedExpressionFactory(
363 expressionTemplate,
364 parameterTypeCombinations
365 ).generateExpressions()
366 }
367&nbsp;
368 /**
369 * @deprecated
370 */
371<span class="fstat-no" title="function not covered" > ge</span>nerateExpression(text) {
372<span class="cstat-no" title="statement not covered" > return util.deprecate(</span>
373<span class="fstat-no" title="function not covered" > ()</span> =&gt; <span class="cstat-no" title="statement not covered" >this.generateExpressions(text)[0],</span>
374 'CucumberExpressionGenerator.generateExpression: Use CucumberExpressionGenerator.generateExpressions instead'
375 )()
376 }
377&nbsp;
378 _createParameterTypeMatchers(text) {
379 let parameterMatchers = []
380 for (const parameterType of this._parameterTypeRegistry.parameterTypes) {
381 if (parameterType.useForSnippets) {
382 parameterMatchers = parameterMatchers.concat(
383 this._createParameterTypeMatchers2(parameterType, text)
384 )
385 }
386 }
387 return parameterMatchers
388 }
389&nbsp;
390 _createParameterTypeMatchers2(parameterType, text) {
391 // TODO: [].map
392 const result = []
393 for (const regexp of parameterType.regexps) {
394 result.push(new ParameterTypeMatcher(parameterType, regexp, text))
395 }
396 return result
397 }
398}
399&nbsp;
400function escape(s) {
401 return s
402 .replace(/%/g, '%%') // for util.format
403 .replace(/\(/g, '\\(')
404 .replace(/{/g, '\\{')
405 .replace(/\//g, '\\/')
406}
407&nbsp;
408module.exports = CucumberExpressionGenerator
409&nbsp;</pre></td></tr>
410</table></pre>
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