diff --git a/bash.html.markdown b/bash.html.markdown index 57fb5c55..dc7d32b6 100644 --- a/bash.html.markdown +++ b/bash.html.markdown @@ -8,6 +8,7 @@ contributors: - ["Denis Arh", "https://github.com/darh"] - ["akirahirose", "https://twitter.com/akirahirose"] - ["Anton Strömkvist", "http://lutic.org/"] + - ["Rahil Momin", "https://github.com/iamrahil"] filename: LearnBash.sh --- @@ -140,6 +141,12 @@ do echo "$VARIABLE" done +# Or write it the "traditional for loop" way: +for ((a=1; a <= 3; a++)) +do + echo $a +done + # They can also be used to act on files.. # This will run the command 'cat' on file1 and file2 for VARIABLE in file1 file2 diff --git a/c.html.markdown b/c.html.markdown index 79b7aec7..cbb6d289 100644 --- a/c.html.markdown +++ b/c.html.markdown @@ -4,6 +4,7 @@ filename: learnc.c contributors: - ["Adam Bard", "http://adambard.com/"] - ["Árpád Goretity", "http://twitter.com/H2CO3_iOS"] + - ["Jakub Trzebiatowski", "http://cbs.stgn.pl"] --- @@ -175,6 +176,9 @@ int main() { i2 * i1; // => 2 i1 / i2; // => 0 (0.5, but truncated towards 0) + // You need to cast at least one integer to float to get a floating-point result + (float)i1 / i2 // => 0.5f + i1 / (double)i2 // => 0.5 // Same with double f1 / f2; // => 0.5, plus or minus epsilon // Floating-point numbers and calculations are not exact @@ -194,9 +198,11 @@ int main() { 2 >= 2; // => 1 // C is not Python - comparisons don't chain. - // WRONG: - //int between_0_and_2 = 0 < a < 2; - // Correct: + // Warning: The line below will compile, but it means `(0 < a) < 2`. + // This expression is always true, because (0 < a) could be either 1 or 0. + // In this case it's 1, because (0 < 1). + int between_0_and_2 = 0 < a < 2; + // Instead use: int between_0_and_2 = 0 < a && a < 2; // Logic works on ints diff --git a/coffeescript.html.markdown b/coffeescript.html.markdown index d96eed39..6af692b9 100644 --- a/coffeescript.html.markdown +++ b/coffeescript.html.markdown @@ -11,7 +11,7 @@ As one of the succeeders of JavaScript, CoffeeScript tries its best to output re See also [the CoffeeScript website](http://coffeescript.org/), which has a complete tutorial on CoffeeScript. -``` coffeescript +```coffeescript # CoffeeScript is a hipster language. # It goes with the trends of many modern languages. # So comments are like Ruby and Python, they use number symbols. diff --git a/common-lisp.html.markdown b/common-lisp.html.markdown index 8de81549..08134e35 100644 --- a/common-lisp.html.markdown +++ b/common-lisp.html.markdown @@ -17,7 +17,7 @@ Another popular and recent book is -```scheme +```common_lisp ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;;; 0. Syntax diff --git a/compojure.html.markdown b/compojure.html.markdown index 56f43cb7..96555273 100644 --- a/compojure.html.markdown +++ b/compojure.html.markdown @@ -23,20 +23,22 @@ in Clojure with minimal effort: (run-server myapp {:port 5000})) ``` -Create a project with [Leiningen](http://leiningen.org/): +**Step 1:** Create a project with [Leiningen](http://leiningen.org/): ``` lein new myapp ``` -Add your dependencies: +**Step 2:** Put the above code in `src/myapp/core.clj` + +**Step 3:** Add some dependencies to `project.clj`: ``` [compojure "1.1.8"] [http-kit "2.1.16"] ``` -And run: +**Step 4:** Run: ``` lein run -m myapp.core @@ -81,18 +83,26 @@ The body may be a function, which must accept the request as a parameter: (GET "/" [] (fn [req] "Do something with req"))) ``` -Route patterns may include named parameters, +Or, you can just use the request directly: + +```clojure +(defroutes myapp + (GET "/" req "Do something with req")) +``` + +Route patterns may include named parameters: ```clojure (defroutes myapp (GET "/hello/:name" [name] (str "Hello " name))) ``` -You can match entire paths with * +You can adjust what each parameter matches by supplying a regex: ```clojure (defroutes myapp - (GET "/file/*.*" [*] (str *))) + (GET ["/file/:name.:ext" :name #".*", :ext #".*"] [name ext] + (str "File: " name ext)) ``` Handlers may utilize query parameters: @@ -100,10 +110,10 @@ Handlers may utilize query parameters: ```clojure (defroutes myapp (GET "/posts" [] - (fn [req] - (let [title (get (:params req) "title") - author (get (:params req) "title")] - " Do something with title and author")))) + (fn [req] + (let [title (get (:params req) "title") + author (get (:params req) "title")] + " Do something with title and author")))) ``` Or, for POST and PUT requests, form parameters @@ -111,10 +121,10 @@ Or, for POST and PUT requests, form parameters ```clojure (defroutes myapp (POST "/posts" [] - (fn [req] - (let [title (get (:params req) "title") - author (get (:params req) "title")] - "Do something with title and author")))) + (fn [req] + (let [title (get (:params req) "title") + author (get (:params req) "title")] + "Do something with title and author")))) ``` @@ -123,16 +133,16 @@ Or, for POST and PUT requests, form parameters The return value of a route block determines at least the response body passed on to the HTTP client, or at least the next middleware in the ring stack. Most commonly, this is a string, as in the above examples. -But, you may also return a [response body](https://github.com/mmcgrana/ring/blob/master/SPEC): +But, you may also return a [response map](https://github.com/mmcgrana/ring/blob/master/SPEC): ```clojure (defroutes myapp (GET "/" [] - {:status 200 :body "Hello World"}) + {:status 200 :body "Hello World"}) (GET "/is-403" [] - {:status 403 :body ""}) + {:status 403 :body ""}) (GET "/is-json" [] - {:status 200 :headers {"Content-Type" "application/json"} :body "{}"})) + {:status 200 :headers {"Content-Type" "application/json"} :body "{}"})) ``` ### Static Files @@ -164,7 +174,7 @@ To use templating with Compojure, you'll need a template library. Here are a few (defroutes myapp (GET "/hello/:name" [name] - (render-string "Hello {{name}}" {:name name}))) + (render-string "Hello {{name}}" {:name name}))) ``` You can easily read in templates from your resources directory. Here's a helper function @@ -177,7 +187,7 @@ You can easily read in templates from your resources directory. Here's a helper (defroutes myapp (GET "/hello/:name" [name] - (render-string (read-template "templates/hello.html") {:name name}))) + (render-string (read-template "templates/hello.html") {:name name}))) ``` #### [Selmer](https://github.com/yogthos/Selmer) @@ -189,7 +199,7 @@ You can easily read in templates from your resources directory. Here's a helper (defroutes myapp (GET "/hello/:name" [name] - (render-file "templates/hello.html" {:name name}))) + (render-file "templates/hello.html" {:name name}))) ``` #### [Hiccup](https://github.com/weavejester/hiccup) @@ -201,11 +211,11 @@ You can easily read in templates from your resources directory. Here's a helper (defroutes myapp (GET "/hello/:name" [name] - (hiccup/html - [:html - [:body - [:h1 {:class "title"} - (str "Hello " name)]]]))) + (hiccup/html + [:html + [:body + [:h1 {:class "title"} + (str "Hello " name)]]]))) ``` #### [Markdown](https://github.com/yogthos/markdown-clj) @@ -217,9 +227,11 @@ You can easily read in templates from your resources directory. Here's a helper (defroutes myapp (GET "/hello/:name" [name] - (md-to-html-string "## Hello, world"))) + (md-to-html-string "## Hello, world"))) ``` Further reading: -[Clojure for the Brave and True](http://www.braveclojure.com/) +* [Official Compojure Documentation](https://github.com/weavejester/compojure/wiki) + +* [Clojure for the Brave and True](http://www.braveclojure.com/) diff --git a/es-es/markdown-es.html.markdown b/es-es/markdown-es.html.markdown index 3865126c..d90e3eb5 100644 --- a/es-es/markdown-es.html.markdown +++ b/es-es/markdown-es.html.markdown @@ -14,7 +14,7 @@ fácilmente a HTML (y, actualmente, otros formatos también). ¡Denme todo la retroalimentación que quieran! / ¡Sientanse en la libertad de hacer forks o pull requests! -``` +```markdown