diff options
Diffstat (limited to 'vendor/github.com/fsouza/go-dockerclient/external/github.com/gorilla/mux/route.go')
-rw-r--r-- | vendor/github.com/fsouza/go-dockerclient/external/github.com/gorilla/mux/route.go | 595 |
1 files changed, 0 insertions, 595 deletions
diff --git a/vendor/github.com/fsouza/go-dockerclient/external/github.com/gorilla/mux/route.go b/vendor/github.com/fsouza/go-dockerclient/external/github.com/gorilla/mux/route.go deleted file mode 100644 index 913432c..0000000 --- a/vendor/github.com/fsouza/go-dockerclient/external/github.com/gorilla/mux/route.go +++ /dev/null | |||
@@ -1,595 +0,0 @@ | |||
1 | // Copyright 2012 The Gorilla Authors. All rights reserved. | ||
2 | // Use of this source code is governed by a BSD-style | ||
3 | // license that can be found in the LICENSE file. | ||
4 | |||
5 | package mux | ||
6 | |||
7 | import ( | ||
8 | "errors" | ||
9 | "fmt" | ||
10 | "net/http" | ||
11 | "net/url" | ||
12 | "regexp" | ||
13 | "strings" | ||
14 | ) | ||
15 | |||
16 | // Route stores information to match a request and build URLs. | ||
17 | type Route struct { | ||
18 | // Parent where the route was registered (a Router). | ||
19 | parent parentRoute | ||
20 | // Request handler for the route. | ||
21 | handler http.Handler | ||
22 | // List of matchers. | ||
23 | matchers []matcher | ||
24 | // Manager for the variables from host and path. | ||
25 | regexp *routeRegexpGroup | ||
26 | // If true, when the path pattern is "/path/", accessing "/path" will | ||
27 | // redirect to the former and vice versa. | ||
28 | strictSlash bool | ||
29 | // If true, this route never matches: it is only used to build URLs. | ||
30 | buildOnly bool | ||
31 | // The name used to build URLs. | ||
32 | name string | ||
33 | // Error resulted from building a route. | ||
34 | err error | ||
35 | |||
36 | buildVarsFunc BuildVarsFunc | ||
37 | } | ||
38 | |||
39 | // Match matches the route against the request. | ||
40 | func (r *Route) Match(req *http.Request, match *RouteMatch) bool { | ||
41 | if r.buildOnly || r.err != nil { | ||
42 | return false | ||
43 | } | ||
44 | // Match everything. | ||
45 | for _, m := range r.matchers { | ||
46 | if matched := m.Match(req, match); !matched { | ||
47 | return false | ||
48 | } | ||
49 | } | ||
50 | // Yay, we have a match. Let's collect some info about it. | ||
51 | if match.Route == nil { | ||
52 | match.Route = r | ||
53 | } | ||
54 | if match.Handler == nil { | ||
55 | match.Handler = r.handler | ||
56 | } | ||
57 | if match.Vars == nil { | ||
58 | match.Vars = make(map[string]string) | ||
59 | } | ||
60 | // Set variables. | ||
61 | if r.regexp != nil { | ||
62 | r.regexp.setMatch(req, match, r) | ||
63 | } | ||
64 | return true | ||
65 | } | ||
66 | |||
67 | // ---------------------------------------------------------------------------- | ||
68 | // Route attributes | ||
69 | // ---------------------------------------------------------------------------- | ||
70 | |||
71 | // GetError returns an error resulted from building the route, if any. | ||
72 | func (r *Route) GetError() error { | ||
73 | return r.err | ||
74 | } | ||
75 | |||
76 | // BuildOnly sets the route to never match: it is only used to build URLs. | ||
77 | func (r *Route) BuildOnly() *Route { | ||
78 | r.buildOnly = true | ||
79 | return r | ||
80 | } | ||
81 | |||
82 | // Handler -------------------------------------------------------------------- | ||
83 | |||
84 | // Handler sets a handler for the route. | ||
85 | func (r *Route) Handler(handler http.Handler) *Route { | ||
86 | if r.err == nil { | ||
87 | r.handler = handler | ||
88 | } | ||
89 | return r | ||
90 | } | ||
91 | |||
92 | // HandlerFunc sets a handler function for the route. | ||
93 | func (r *Route) HandlerFunc(f func(http.ResponseWriter, *http.Request)) *Route { | ||
94 | return r.Handler(http.HandlerFunc(f)) | ||
95 | } | ||
96 | |||
97 | // GetHandler returns the handler for the route, if any. | ||
98 | func (r *Route) GetHandler() http.Handler { | ||
99 | return r.handler | ||
100 | } | ||
101 | |||
102 | // Name ----------------------------------------------------------------------- | ||
103 | |||
104 | // Name sets the name for the route, used to build URLs. | ||
105 | // If the name was registered already it will be overwritten. | ||
106 | func (r *Route) Name(name string) *Route { | ||
107 | if r.name != "" { | ||
108 | r.err = fmt.Errorf("mux: route already has name %q, can't set %q", | ||
109 | r.name, name) | ||
110 | } | ||
111 | if r.err == nil { | ||
112 | r.name = name | ||
113 | r.getNamedRoutes()[name] = r | ||
114 | } | ||
115 | return r | ||
116 | } | ||
117 | |||
118 | // GetName returns the name for the route, if any. | ||
119 | func (r *Route) GetName() string { | ||
120 | return r.name | ||
121 | } | ||
122 | |||
123 | // ---------------------------------------------------------------------------- | ||
124 | // Matchers | ||
125 | // ---------------------------------------------------------------------------- | ||
126 | |||
127 | // matcher types try to match a request. | ||
128 | type matcher interface { | ||
129 | Match(*http.Request, *RouteMatch) bool | ||
130 | } | ||
131 | |||
132 | // addMatcher adds a matcher to the route. | ||
133 | func (r *Route) addMatcher(m matcher) *Route { | ||
134 | if r.err == nil { | ||
135 | r.matchers = append(r.matchers, m) | ||
136 | } | ||
137 | return r | ||
138 | } | ||
139 | |||
140 | // addRegexpMatcher adds a host or path matcher and builder to a route. | ||
141 | func (r *Route) addRegexpMatcher(tpl string, matchHost, matchPrefix, matchQuery bool) error { | ||
142 | if r.err != nil { | ||
143 | return r.err | ||
144 | } | ||
145 | r.regexp = r.getRegexpGroup() | ||
146 | if !matchHost && !matchQuery { | ||
147 | if len(tpl) == 0 || tpl[0] != '/' { | ||
148 | return fmt.Errorf("mux: path must start with a slash, got %q", tpl) | ||
149 | } | ||
150 | if r.regexp.path != nil { | ||
151 | tpl = strings.TrimRight(r.regexp.path.template, "/") + tpl | ||
152 | } | ||
153 | } | ||
154 | rr, err := newRouteRegexp(tpl, matchHost, matchPrefix, matchQuery, r.strictSlash) | ||
155 | if err != nil { | ||
156 | return err | ||
157 | } | ||
158 | for _, q := range r.regexp.queries { | ||
159 | if err = uniqueVars(rr.varsN, q.varsN); err != nil { | ||
160 | return err | ||
161 | } | ||
162 | } | ||
163 | if matchHost { | ||
164 | if r.regexp.path != nil { | ||
165 | if err = uniqueVars(rr.varsN, r.regexp.path.varsN); err != nil { | ||
166 | return err | ||
167 | } | ||
168 | } | ||
169 | r.regexp.host = rr | ||
170 | } else { | ||
171 | if r.regexp.host != nil { | ||
172 | if err = uniqueVars(rr.varsN, r.regexp.host.varsN); err != nil { | ||
173 | return err | ||
174 | } | ||
175 | } | ||
176 | if matchQuery { | ||
177 | r.regexp.queries = append(r.regexp.queries, rr) | ||
178 | } else { | ||
179 | r.regexp.path = rr | ||
180 | } | ||
181 | } | ||
182 | r.addMatcher(rr) | ||
183 | return nil | ||
184 | } | ||
185 | |||
186 | // Headers -------------------------------------------------------------------- | ||
187 | |||
188 | // headerMatcher matches the request against header values. | ||
189 | type headerMatcher map[string]string | ||
190 | |||
191 | func (m headerMatcher) Match(r *http.Request, match *RouteMatch) bool { | ||
192 | return matchMapWithString(m, r.Header, true) | ||
193 | } | ||
194 | |||
195 | // Headers adds a matcher for request header values. | ||
196 | // It accepts a sequence of key/value pairs to be matched. For example: | ||
197 | // | ||
198 | // r := mux.NewRouter() | ||
199 | // r.Headers("Content-Type", "application/json", | ||
200 | // "X-Requested-With", "XMLHttpRequest") | ||
201 | // | ||
202 | // The above route will only match if both request header values match. | ||
203 | // If the value is an empty string, it will match any value if the key is set. | ||
204 | func (r *Route) Headers(pairs ...string) *Route { | ||
205 | if r.err == nil { | ||
206 | var headers map[string]string | ||
207 | headers, r.err = mapFromPairsToString(pairs...) | ||
208 | return r.addMatcher(headerMatcher(headers)) | ||
209 | } | ||
210 | return r | ||
211 | } | ||
212 | |||
213 | // headerRegexMatcher matches the request against the route given a regex for the header | ||
214 | type headerRegexMatcher map[string]*regexp.Regexp | ||
215 | |||
216 | func (m headerRegexMatcher) Match(r *http.Request, match *RouteMatch) bool { | ||
217 | return matchMapWithRegex(m, r.Header, true) | ||
218 | } | ||
219 | |||
220 | // Regular expressions can be used with headers as well. | ||
221 | // It accepts a sequence of key/value pairs, where the value has regex support. For example | ||
222 | // r := mux.NewRouter() | ||
223 | // r.HeadersRegexp("Content-Type", "application/(text|json)", | ||
224 | // "X-Requested-With", "XMLHttpRequest") | ||
225 | // | ||
226 | // The above route will only match if both the request header matches both regular expressions. | ||
227 | // It the value is an empty string, it will match any value if the key is set. | ||
228 | func (r *Route) HeadersRegexp(pairs ...string) *Route { | ||
229 | if r.err == nil { | ||
230 | var headers map[string]*regexp.Regexp | ||
231 | headers, r.err = mapFromPairsToRegex(pairs...) | ||
232 | return r.addMatcher(headerRegexMatcher(headers)) | ||
233 | } | ||
234 | return r | ||
235 | } | ||
236 | |||
237 | // Host ----------------------------------------------------------------------- | ||
238 | |||
239 | // Host adds a matcher for the URL host. | ||
240 | // It accepts a template with zero or more URL variables enclosed by {}. | ||
241 | // Variables can define an optional regexp pattern to be matched: | ||
242 | // | ||
243 | // - {name} matches anything until the next dot. | ||
244 | // | ||
245 | // - {name:pattern} matches the given regexp pattern. | ||
246 | // | ||
247 | // For example: | ||
248 | // | ||
249 | // r := mux.NewRouter() | ||
250 | // r.Host("www.example.com") | ||
251 | // r.Host("{subdomain}.domain.com") | ||
252 | // r.Host("{subdomain:[a-z]+}.domain.com") | ||
253 | // | ||
254 | // Variable names must be unique in a given route. They can be retrieved | ||
255 | // calling mux.Vars(request). | ||
256 | func (r *Route) Host(tpl string) *Route { | ||
257 | r.err = r.addRegexpMatcher(tpl, true, false, false) | ||
258 | return r | ||
259 | } | ||
260 | |||
261 | // MatcherFunc ---------------------------------------------------------------- | ||
262 | |||
263 | // MatcherFunc is the function signature used by custom matchers. | ||
264 | type MatcherFunc func(*http.Request, *RouteMatch) bool | ||
265 | |||
266 | func (m MatcherFunc) Match(r *http.Request, match *RouteMatch) bool { | ||
267 | return m(r, match) | ||
268 | } | ||
269 | |||
270 | // MatcherFunc adds a custom function to be used as request matcher. | ||
271 | func (r *Route) MatcherFunc(f MatcherFunc) *Route { | ||
272 | return r.addMatcher(f) | ||
273 | } | ||
274 | |||
275 | // Methods -------------------------------------------------------------------- | ||
276 | |||
277 | // methodMatcher matches the request against HTTP methods. | ||
278 | type methodMatcher []string | ||
279 | |||
280 | func (m methodMatcher) Match(r *http.Request, match *RouteMatch) bool { | ||
281 | return matchInArray(m, r.Method) | ||
282 | } | ||
283 | |||
284 | // Methods adds a matcher for HTTP methods. | ||
285 | // It accepts a sequence of one or more methods to be matched, e.g.: | ||
286 | // "GET", "POST", "PUT". | ||
287 | func (r *Route) Methods(methods ...string) *Route { | ||
288 | for k, v := range methods { | ||
289 | methods[k] = strings.ToUpper(v) | ||
290 | } | ||
291 | return r.addMatcher(methodMatcher(methods)) | ||
292 | } | ||
293 | |||
294 | // Path ----------------------------------------------------------------------- | ||
295 | |||
296 | // Path adds a matcher for the URL path. | ||
297 | // It accepts a template with zero or more URL variables enclosed by {}. The | ||
298 | // template must start with a "/". | ||
299 | // Variables can define an optional regexp pattern to be matched: | ||
300 | // | ||
301 | // - {name} matches anything until the next slash. | ||
302 | // | ||
303 | // - {name:pattern} matches the given regexp pattern. | ||
304 | // | ||
305 | // For example: | ||
306 | // | ||
307 | // r := mux.NewRouter() | ||
308 | // r.Path("/products/").Handler(ProductsHandler) | ||
309 | // r.Path("/products/{key}").Handler(ProductsHandler) | ||
310 | // r.Path("/articles/{category}/{id:[0-9]+}"). | ||
311 | // Handler(ArticleHandler) | ||
312 | // | ||
313 | // Variable names must be unique in a given route. They can be retrieved | ||
314 | // calling mux.Vars(request). | ||
315 | func (r *Route) Path(tpl string) *Route { | ||
316 | r.err = r.addRegexpMatcher(tpl, false, false, false) | ||
317 | return r | ||
318 | } | ||
319 | |||
320 | // PathPrefix ----------------------------------------------------------------- | ||
321 | |||
322 | // PathPrefix adds a matcher for the URL path prefix. This matches if the given | ||
323 | // template is a prefix of the full URL path. See Route.Path() for details on | ||
324 | // the tpl argument. | ||
325 | // | ||
326 | // Note that it does not treat slashes specially ("/foobar/" will be matched by | ||
327 | // the prefix "/foo") so you may want to use a trailing slash here. | ||
328 | // | ||
329 | // Also note that the setting of Router.StrictSlash() has no effect on routes | ||
330 | // with a PathPrefix matcher. | ||
331 | func (r *Route) PathPrefix(tpl string) *Route { | ||
332 | r.err = r.addRegexpMatcher(tpl, false, true, false) | ||
333 | return r | ||
334 | } | ||
335 | |||
336 | // Query ---------------------------------------------------------------------- | ||
337 | |||
338 | // Queries adds a matcher for URL query values. | ||
339 | // It accepts a sequence of key/value pairs. Values may define variables. | ||
340 | // For example: | ||
341 | // | ||
342 | // r := mux.NewRouter() | ||
343 | // r.Queries("foo", "bar", "id", "{id:[0-9]+}") | ||
344 | // | ||
345 | // The above route will only match if the URL contains the defined queries | ||
346 | // values, e.g.: ?foo=bar&id=42. | ||
347 | // | ||
348 | // It the value is an empty string, it will match any value if the key is set. | ||
349 | // | ||
350 | // Variables can define an optional regexp pattern to be matched: | ||
351 | // | ||
352 | // - {name} matches anything until the next slash. | ||
353 | // | ||
354 | // - {name:pattern} matches the given regexp pattern. | ||
355 | func (r *Route) Queries(pairs ...string) *Route { | ||
356 | length := len(pairs) | ||
357 | if length%2 != 0 { | ||
358 | r.err = fmt.Errorf( | ||
359 | "mux: number of parameters must be multiple of 2, got %v", pairs) | ||
360 | return nil | ||
361 | } | ||
362 | for i := 0; i < length; i += 2 { | ||
363 | if r.err = r.addRegexpMatcher(pairs[i]+"="+pairs[i+1], false, false, true); r.err != nil { | ||
364 | return r | ||
365 | } | ||
366 | } | ||
367 | |||
368 | return r | ||
369 | } | ||
370 | |||
371 | // Schemes -------------------------------------------------------------------- | ||
372 | |||
373 | // schemeMatcher matches the request against URL schemes. | ||
374 | type schemeMatcher []string | ||
375 | |||
376 | func (m schemeMatcher) Match(r *http.Request, match *RouteMatch) bool { | ||
377 | return matchInArray(m, r.URL.Scheme) | ||
378 | } | ||
379 | |||
380 | // Schemes adds a matcher for URL schemes. | ||
381 | // It accepts a sequence of schemes to be matched, e.g.: "http", "https". | ||
382 | func (r *Route) Schemes(schemes ...string) *Route { | ||
383 | for k, v := range schemes { | ||
384 | schemes[k] = strings.ToLower(v) | ||
385 | } | ||
386 | return r.addMatcher(schemeMatcher(schemes)) | ||
387 | } | ||
388 | |||
389 | // BuildVarsFunc -------------------------------------------------------------- | ||
390 | |||
391 | // BuildVarsFunc is the function signature used by custom build variable | ||
392 | // functions (which can modify route variables before a route's URL is built). | ||
393 | type BuildVarsFunc func(map[string]string) map[string]string | ||
394 | |||
395 | // BuildVarsFunc adds a custom function to be used to modify build variables | ||
396 | // before a route's URL is built. | ||
397 | func (r *Route) BuildVarsFunc(f BuildVarsFunc) *Route { | ||
398 | r.buildVarsFunc = f | ||
399 | return r | ||
400 | } | ||
401 | |||
402 | // Subrouter ------------------------------------------------------------------ | ||
403 | |||
404 | // Subrouter creates a subrouter for the route. | ||
405 | // | ||
406 | // It will test the inner routes only if the parent route matched. For example: | ||
407 | // | ||
408 | // r := mux.NewRouter() | ||
409 | // s := r.Host("www.example.com").Subrouter() | ||
410 | // s.HandleFunc("/products/", ProductsHandler) | ||
411 | // s.HandleFunc("/products/{key}", ProductHandler) | ||
412 | // s.HandleFunc("/articles/{category}/{id:[0-9]+}"), ArticleHandler) | ||
413 | // | ||
414 | // Here, the routes registered in the subrouter won't be tested if the host | ||
415 | // doesn't match. | ||
416 | func (r *Route) Subrouter() *Router { | ||
417 | router := &Router{parent: r, strictSlash: r.strictSlash} | ||
418 | r.addMatcher(router) | ||
419 | return router | ||
420 | } | ||
421 | |||
422 | // ---------------------------------------------------------------------------- | ||
423 | // URL building | ||
424 | // ---------------------------------------------------------------------------- | ||
425 | |||
426 | // URL builds a URL for the route. | ||
427 | // | ||
428 | // It accepts a sequence of key/value pairs for the route variables. For | ||
429 | // example, given this route: | ||
430 | // | ||
431 | // r := mux.NewRouter() | ||
432 | // r.HandleFunc("/articles/{category}/{id:[0-9]+}", ArticleHandler). | ||
433 | // Name("article") | ||
434 | // | ||
435 | // ...a URL for it can be built using: | ||
436 | // | ||
437 | // url, err := r.Get("article").URL("category", "technology", "id", "42") | ||
438 | // | ||
439 | // ...which will return an url.URL with the following path: | ||
440 | // | ||
441 | // "/articles/technology/42" | ||
442 | // | ||
443 | // This also works for host variables: | ||
444 | // | ||
445 | // r := mux.NewRouter() | ||
446 | // r.Host("{subdomain}.domain.com"). | ||
447 | // HandleFunc("/articles/{category}/{id:[0-9]+}", ArticleHandler). | ||
448 | // Name("article") | ||
449 | // | ||
450 | // // url.String() will be "http://news.domain.com/articles/technology/42" | ||
451 | // url, err := r.Get("article").URL("subdomain", "news", | ||
452 | // "category", "technology", | ||
453 | // "id", "42") | ||
454 | // | ||
455 | // All variables defined in the route are required, and their values must | ||
456 | // conform to the corresponding patterns. | ||
457 | func (r *Route) URL(pairs ...string) (*url.URL, error) { | ||
458 | if r.err != nil { | ||
459 | return nil, r.err | ||
460 | } | ||
461 | if r.regexp == nil { | ||
462 | return nil, errors.New("mux: route doesn't have a host or path") | ||
463 | } | ||
464 | values, err := r.prepareVars(pairs...) | ||
465 | if err != nil { | ||
466 | return nil, err | ||
467 | } | ||
468 | var scheme, host, path string | ||
469 | if r.regexp.host != nil { | ||
470 | // Set a default scheme. | ||
471 | scheme = "http" | ||
472 | if host, err = r.regexp.host.url(values); err != nil { | ||
473 | return nil, err | ||
474 | } | ||
475 | } | ||
476 | if r.regexp.path != nil { | ||
477 | if path, err = r.regexp.path.url(values); err != nil { | ||
478 | return nil, err | ||
479 | } | ||
480 | } | ||
481 | return &url.URL{ | ||
482 | Scheme: scheme, | ||
483 | Host: host, | ||
484 | Path: path, | ||
485 | }, nil | ||
486 | } | ||
487 | |||
488 | // URLHost builds the host part of the URL for a route. See Route.URL(). | ||
489 | // | ||
490 | // The route must have a host defined. | ||
491 | func (r *Route) URLHost(pairs ...string) (*url.URL, error) { | ||
492 | if r.err != nil { | ||
493 | return nil, r.err | ||
494 | } | ||
495 | if r.regexp == nil || r.regexp.host == nil { | ||
496 | return nil, errors.New("mux: route doesn't have a host") | ||
497 | } | ||
498 | values, err := r.prepareVars(pairs...) | ||
499 | if err != nil { | ||
500 | return nil, err | ||
501 | } | ||
502 | host, err := r.regexp.host.url(values) | ||
503 | if err != nil { | ||
504 | return nil, err | ||
505 | } | ||
506 | return &url.URL{ | ||
507 | Scheme: "http", | ||
508 | Host: host, | ||
509 | }, nil | ||
510 | } | ||
511 | |||
512 | // URLPath builds the path part of the URL for a route. See Route.URL(). | ||
513 | // | ||
514 | // The route must have a path defined. | ||
515 | func (r *Route) URLPath(pairs ...string) (*url.URL, error) { | ||
516 | if r.err != nil { | ||
517 | return nil, r.err | ||
518 | } | ||
519 | if r.regexp == nil || r.regexp.path == nil { | ||
520 | return nil, errors.New("mux: route doesn't have a path") | ||
521 | } | ||
522 | values, err := r.prepareVars(pairs...) | ||
523 | if err != nil { | ||
524 | return nil, err | ||
525 | } | ||
526 | path, err := r.regexp.path.url(values) | ||
527 | if err != nil { | ||
528 | return nil, err | ||
529 | } | ||
530 | return &url.URL{ | ||
531 | Path: path, | ||
532 | }, nil | ||
533 | } | ||
534 | |||
535 | // prepareVars converts the route variable pairs into a map. If the route has a | ||
536 | // BuildVarsFunc, it is invoked. | ||
537 | func (r *Route) prepareVars(pairs ...string) (map[string]string, error) { | ||
538 | m, err := mapFromPairsToString(pairs...) | ||
539 | if err != nil { | ||
540 | return nil, err | ||
541 | } | ||
542 | return r.buildVars(m), nil | ||
543 | } | ||
544 | |||
545 | func (r *Route) buildVars(m map[string]string) map[string]string { | ||
546 | if r.parent != nil { | ||
547 | m = r.parent.buildVars(m) | ||
548 | } | ||
549 | if r.buildVarsFunc != nil { | ||
550 | m = r.buildVarsFunc(m) | ||
551 | } | ||
552 | return m | ||
553 | } | ||
554 | |||
555 | // ---------------------------------------------------------------------------- | ||
556 | // parentRoute | ||
557 | // ---------------------------------------------------------------------------- | ||
558 | |||
559 | // parentRoute allows routes to know about parent host and path definitions. | ||
560 | type parentRoute interface { | ||
561 | getNamedRoutes() map[string]*Route | ||
562 | getRegexpGroup() *routeRegexpGroup | ||
563 | buildVars(map[string]string) map[string]string | ||
564 | } | ||
565 | |||
566 | // getNamedRoutes returns the map where named routes are registered. | ||
567 | func (r *Route) getNamedRoutes() map[string]*Route { | ||
568 | if r.parent == nil { | ||
569 | // During tests router is not always set. | ||
570 | r.parent = NewRouter() | ||
571 | } | ||
572 | return r.parent.getNamedRoutes() | ||
573 | } | ||
574 | |||
575 | // getRegexpGroup returns regexp definitions from this route. | ||
576 | func (r *Route) getRegexpGroup() *routeRegexpGroup { | ||
577 | if r.regexp == nil { | ||
578 | if r.parent == nil { | ||
579 | // During tests router is not always set. | ||
580 | r.parent = NewRouter() | ||
581 | } | ||
582 | regexp := r.parent.getRegexpGroup() | ||
583 | if regexp == nil { | ||
584 | r.regexp = new(routeRegexpGroup) | ||
585 | } else { | ||
586 | // Copy. | ||
587 | r.regexp = &routeRegexpGroup{ | ||
588 | host: regexp.host, | ||
589 | path: regexp.path, | ||
590 | queries: regexp.queries, | ||
591 | } | ||
592 | } | ||
593 | } | ||
594 | return r.regexp | ||
595 | } | ||