~nickbp/marky

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d1249263Nick Parker CI: Push docs/ to site 8 months ago
                                                                                
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---
layout: default
title: marky
---
<p>Marky is a library for creating Markov chains from arbitrary text input. It comes with a simple command line front end, named <i>marky-file</i>, which can be used to read text files and produce entertaining output.</p>

<p>The library is divided into several discrete components, allowing developers and advanced users to easily customize and extend its behavior. It currently supports a few scoring and selection methods, and temporary (hash map) or persistent (SQLite) storage of its state. For a description of Marky's internal structure, take a look at the <a href="docs.html">documentation</a>.</p>

<p>It's also pretty fast. In a Release build on my 3 year old laptop, the <i>marky-file</i> tool imports all of "My Antonia" and produces a chain in about 0.25 seconds. If the data is imported into a SQLite db (~3 seconds), it takes around 0.1 seconds to produce a chain from that. Here are some examples:</p>

<p class="subheader">Direct Printing</p>

<p class="code">apps$ time ./marky-file -p ../tests/data-my_antonia.txt<br/>
The windy springs and he used to the check.<br/>
<br/>
real	0m0.255s<br/>
user	0m0.224s<br/>
sys	0m0.028s<br/>
<br/>
apps$ time ./marky-file -p ../tests/data-my_antonia.txt -s springs<br/>
While we could not notice indicating that breathless, brilliant heat it had a royal house; the smell the best horse, and tried to do go back porch, resting against hot springs and the cornfields with open window.<br/>
<br/>
real	0m0.255s<br/>
user	0m0.236s<br/>
sys	0m0.016s</p>

<p class="subheader">SQLite Caching</p>

<p>Create DB:</p>

<p class="code">apps$ time ./marky-file -i ../tests/data-my_antonia.txt<br/>
<br/>
real	0m3.214s<br/>
user	0m2.692s<br/>
sys	0m0.500s</p>

<p>Produce from DB:</p>

<p class="code">apps$ time ./marky-file -e<br/>
She was so joyous and glitter and velvety.<br/>
<br/>
real	0m0.098s<br/>
user	0m0.084s<br/>
sys	0m0.012s<br/>
<br/>
apps$ time ./marky-file -e<br/>
I was so deep under the years and sheet-draped garments on her propped my promise, of that had heard grandmother told me with Frances, after they could smell of its height, her hands.<br/>
<br/>
real	0m0.104s<br/>
user	0m0.096s<br/>
sys	0m0.004s<br/>
<br/>
apps$ time ./marky-file -e<br/>
On his sledge overturned, with you.<br/>
<br/>
real	0m0.084s<br/>
user	0m0.080s<br/>
sys	0m0.000s<br/>
<br/>
apps$ time ./marky-file -e -s you.<br/>
There, without you.<br/>
<br/>
real	0m0.003s<br/>
user	0m0.000s<br/>
sys	0m0.000s</p>