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Veit Heller
2020-02-10 00:10:44 +01:00
parent e58dcbe479
commit 5a6edcf580
7 changed files with 5836 additions and 11 deletions
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docs/RESP.html Normal file
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<!DOCTYPE HTML>
<html>
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0">
<link rel="stylesheet" href="style.css">
</head>
<body>
<div class="content">
<div class="logo">
<a href="http://github.com/carp-lang/Carp">
<img src="logo.png">
</a>
<div class="title">
redis
</div>
<div class="index">
<ul>
<li>
<a href="RESP.html">
RESP
</a>
</li>
<li>
<a href="Redis.html">
Redis
</a>
</li>
</ul>
</div>
</div>
<h1>
RESP
</h1>
<div class="module-description">
<p>is a wrapper around the <a href="https://redis.io/topics/protocol">Redis Serialization
Protocol</a>. You can create all types—though
creating arrays is a little unsightly due to the absence of recursive types—,
stringify the built types into strings using <a href="#str"><code>str</code></a>, and decoding from
the string protocol using <a href="#from-string"><code>from-string</code></a>.</p>
<p>If you want your types to be supported when encoding, you’ll have to implement
the interface <code>to-redis</code>, the signature of which is <code>(Fn [a] RESP))</code>.</p>
</div>
<div class="binder">
<a class="anchor" href="#Arr">
<h3 id="Arr">
Arr
</h3>
</a>
<div class="description">
instantiate
</div>
<p class="sig">
(λ [(Array String)] RESP)
</p>
<span>
</span>
<p class="doc">
<p>creates a <code>Arr</code>.</p>
</p>
</div>
<div class="binder">
<a class="anchor" href="#Err">
<h3 id="Err">
Err
</h3>
</a>
<div class="description">
instantiate
</div>
<p class="sig">
(λ [String] RESP)
</p>
<span>
</span>
<p class="doc">
<p>creates a <code>Err</code>.</p>
</p>
</div>
<div class="binder">
<a class="anchor" href="#Integer">
<h3 id="Integer">
Integer
</h3>
</a>
<div class="description">
instantiate
</div>
<p class="sig">
(λ [Int] RESP)
</p>
<span>
</span>
<p class="doc">
<p>creates a <code>Integer</code>.</p>
</p>
</div>
<div class="binder">
<a class="anchor" href="#Null">
<h3 id="Null">
Null
</h3>
</a>
<div class="description">
instantiate
</div>
<p class="sig">
(λ [] RESP)
</p>
<span>
</span>
<p class="doc">
<p>creates a <code>Null</code>.</p>
</p>
</div>
<div class="binder">
<a class="anchor" href="#Str">
<h3 id="Str">
Str
</h3>
</a>
<div class="description">
instantiate
</div>
<p class="sig">
(λ [String] RESP)
</p>
<span>
</span>
<p class="doc">
<p>creates a <code>Str</code>.</p>
</p>
</div>
<div class="binder">
<a class="anchor" href="#copy">
<h3 id="copy">
copy
</h3>
</a>
<div class="description">
instantiate
</div>
<p class="sig">
(λ [(Ref RESP a)] RESP)
</p>
<span>
</span>
<p class="doc">
<p>copies a <code>RESP</code>.</p>
</p>
</div>
<div class="binder">
<a class="anchor" href="#from-string">
<h3 id="from-string">
from-string
</h3>
</a>
<div class="description">
defn
</div>
<p class="sig">
(λ [(Ref String a)] (Result RESP String))
</p>
<pre class="args">
(from-string s)
</pre>
<p class="doc">
<p>converts a RESP string into a <code>RESP</code> data structure.</p>
</p>
</div>
<div class="binder">
<a class="anchor" href="#get-tag">
<h3 id="get-tag">
get-tag
</h3>
</a>
<div class="description">
instantiate
</div>
<p class="sig">
(λ [(Ref RESP a)] Int)
</p>
<span>
</span>
<p class="doc">
<p>Gets the tag from a <code>RESP</code>.</p>
</p>
</div>
<div class="binder">
<a class="anchor" href="#prn">
<h3 id="prn">
prn
</h3>
</a>
<div class="description">
instantiate
</div>
<p class="sig">
(λ [(Ref RESP a)] String)
</p>
<span>
</span>
<p class="doc">
<p>converts a <code>RESP</code> to a string.</p>
</p>
</div>
<div class="binder">
<a class="anchor" href="#str">
<h3 id="str">
str
</h3>
</a>
<div class="description">
defn
</div>
<p class="sig">
(λ [(Ref RESP a)] String)
</p>
<pre class="args">
(str r)
</pre>
<p class="doc">
<p>converts a <code>RESP</code> to a string.</p>
</p>
</div>
</div>
</body>
</html>

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<!DOCTYPE HTML>
<html>
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0">
<link rel="stylesheet" href="style.css">
</head>
<body>
<div class="content">
<a href="https://veitheller/git/carpentry/redis">
<div class="logo">
<img src="" alt="Logo">
<div class="index">
<ul>
<li>
<a href="RESP.html">
RESP
</a>
</li>
<li>
<a href="Redis.html">
Redis
</a>
</li>
</ul>
</div>
</div>
<div>
<h1>
redis
</h1>
<p>is a collection of modules for talking
to Redis.</p>
<pre><code>(load &quot;https://veitheller/git/carpentry/redis@master&quot;)
</code></pre>
</div>
</a>
</div>
</body>
</html>

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html {
font-family: "Hasklig", "Lucida Console", monospace;
font-size: 1.0em;
}
p {
margin: 0em 0em 0.5em 0em;
}
a {
color: #000;
}
pre {
background: #f1f1f1;
padding: 10px;
overflow-x: scroll;
}
.logo img {
display: none;
}
.logo {
padding: 1em;
position: fixed;
top: 1em;
right: 1em;
}
.args {
background-color: #f1f1f1;
padding: 3px;
display: inline-block;
margin-top: 0.3em;
margin-bottom: 0.3em;
white-space: normal;
}
ul {
list-style-type: none;
line-height: 1.6em;
}
.title {
font-size: 1.5em;
}
.content {
margin: 3em auto auto auto;
width: 70%;
max-width: 650px;
}
.module-description {
padding-bottom: 0.5em;
margin-bottom: 3.5em;
border-bottom: 5px solid #aaa;
}
h1 {
margin-bottom: 1.5em;
}
h3 {
margin: 0em;
}
.anchor {
color: #000;
text-decoration: none;
}
.anchor:hover {
text-decoration: underline;
}
.binder {
margin: 0em 0em 3.5em 0em;
}
.sig {
font-family: "Hasklig", "Lucida Console", monospace;
background-color: #f1f1f1;
}
code {
font-family: "Hasklig", "Lucida Console", monospace;
background-color: #f1f1f1;
}
.description {
margin-top: 0.5em;
margin-bottom: 0.5em;
font-size: 0.8em;
color: #aaa;
}
/* Smaller screens */
@media only screen and (max-width: 1000px) {
.logo {
margin: 1em;
text-align: left;
float: left;
width: 100%;
position: inherit;
}
.content {
margin: 0.5em;
}
.binder {
margin: 0em 0em 1.5em 0em;
}
.sig {
font-size: 0.9em;
}
ul {
padding: 0px;
}
}

2
examples/simple.carp
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@@ -1,4 +1,4 @@
(load "https://veitheller.de/git/carpentry/redis.git@master")
(load "redis.carp")
(defn main []
(match (Redis.open "127.0.0.1")

17
gendocs.carp Normal file
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@@ -0,0 +1,17 @@
(load "redis.carp")
(Project.config "title" "redis")
(Project.config "docs-directory" "./docs/")
(Project.config "docs-logo" "")
(Project.config "docs-url" "https://veitheller/git/carpentry/redis")
(Project.config "docs-styling" "style.css")
(Project.config "docs-prelude" "is a collection of modules for talking
to Redis.
```
(load \"https://veitheller/git/carpentry/redis@master\")
```
")
(save-docs RESP Redis)
(quit)

42
redis.carp
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@@ -12,7 +12,8 @@
(defmodule RESP
(use-all Array Int Maybe Pattern Result)
(def separator "\r\n")
(hidden c)
(private c)
(def c (prn &@&[@""]))
(defn str [r]
@@ -23,6 +24,8 @@
(Integer i) (fmt ":%d\r\n" i)
(Arr a) (fmt "*%d\r\n%s" (length &a) &(concat &a))))
(hidden decode-bulk-string)
(private decode-bulk-string)
(defn decode-bulk-string [s]
(if (starts-with? s "-1\r\n")
(Success (Null))
@@ -34,17 +37,22 @@
(String.prefix-string &(join "\r\n" &(suffix-array &splt 1))
(from-string l))))))))
(hidden agg)
(private agg)
(defn agg [els len]
(let-do [consumed 0
clen 0]
(foreach [el els]
(for [i 0 len]
(let [el (unsafe-nth els i)]
(if (>= clen len)
(break)
(do
(set! consumed (inc consumed))
(set! clen (+ 2 (+ clen (length el)))))))
(set! clen (+ 2 (+ clen (length el))))))))
consumed))
(hidden decode-arr)
(private decode-arr)
(defn decode-arr [s]
(if (starts-with? s "*0\r\n")
(Success (Null))
@@ -77,6 +85,7 @@
(Success (Arr a))
(Error @err)))))))
(doc from-string "converts a RESP string into a `RESP` data structure.")
(defn from-string [s]
(if (empty? s)
(Success (Null))
@@ -87,9 +96,9 @@
\$ (decode-bulk-string &(tail s))
\* (decode-arr &(tail s))
(Error (fmt "Malformed RESP data: got %s" s)))))
)
(definterface to-redis (Fn [a] RESP))
(definterface to-redis (Fn [a] RESP))
)
(defmodule String
(defn to-redis [s] (RESP.Str s))
@@ -106,22 +115,28 @@
(defmodule Redis
(use-all Array Result Socket)
(doc open-on "opens the connection to Redis on port `port`.")
(defn open-on [host port]
(let [s (setup-client host port)]
(if (valid? &s)
(Success (init s))
(Error (fmt "Couldn’t connect to %s:%d" host port)))))
(doc open "opens the connection to Redis on port 6379.
For variable port numbers please check out [`open-on`](#open-on).")
(defn open [host] (open-on host 6379))
(doc read "reads a `RESP` object from Redis.")
(defn read [r] (RESP.from-string &(Socket.read (sock r))))
(doc send "sends the command `cmd` with the arguments `args` to Redis.")
(defn send [r cmd args]
(if (empty? args)
(Socket.send (sock r) &(fmt "%s\r\n" &cmd))
(Socket.send (sock r) &(str &(RESP.Arr (concat &[[(str &(to-redis cmd))] (copy-map &RESP.str args)]))))))
(doc close "closes the connection to Redis.")
(defn close [r] (Socket.close @(sock &r)))
)
(defndynamic rtreat- [s]
@@ -150,6 +165,8 @@ It takes the same arguments as the [Redis command](https://redis.io/commands/"
(list 'Redis.send 'r (list 'copy (rtreat- (Symbol.str cmd))) (list 'ref (rconv- args)))
'(Redis.read r)))))
; these commands were scraped from redis.io on the 9th of Feb 2020
(defredis append key value)
(defredis auth password)
(defredis bgrewriteaof)
@@ -391,3 +408,16 @@ It takes the same arguments as the [Redis command](https://redis.io/commands/"
(defredis latency-latest)
(defredis latency-reset)
(defredis latency-help)
(doc Redis "is a wrapper around Redis connections. It supports opening a
connection using [`open`](#open) or [`open-on`](#open-on), reading from and
sending to the connection (using [`read`](#read) and [`send`](#send),
respectively), and contains thin wrappers around all Redis commands (everything
else).")
(doc RESP "is a wrapper around the [Redis Serialization
Protocol](https://redis.io/topics/protocol). You can create all types—though
creating arrays is a little unsightly due to the absence of recursive types—,
stringify the built types into strings using [`str`](#str), and decoding from
the string protocol using [`from-string`](#from-string).
If you want your types to be supported when encoding, you’ll have to implement
the interface `to-redis`, the signature of which is `(Fn [a] RESP))`.")