### Install reliq CLI and Library using Makefile

Source: https://github.com/tuvimen/reliq/blob/master/README.md

Provides commands to install the reliq CLI tool and its library using the project's Makefile. Includes options for a standard install, library-only install, and a linked install.

```makefile
make install
make lib-install
make linked
```

--------------------------------

### Install reliq via AUR

Source: https://github.com/tuvimen/reliq/blob/master/README.md

Installs the reliq HTML parser using the Arch User Repository (AUR) helper 'yay'. This is a common method for users on Arch Linux or derivatives.

```shell
yay -S reliq
```

--------------------------------

### CSS Styling Example

Source: https://github.com/tuvimen/reliq/blob/master/tests/pretty/1.html

Demonstrates basic CSS styling for the body element and a class named .intRoducIon. Includes a long comment line to test handling of extended text within comments.

```css
body { background-color: red; color: black; }
.intRoducIon { margin-top: 2em; /* This purposefully is a very long line just to test certain things and anything that might fail in the future for whatever reason */ padding: 0.1em; }
```

--------------------------------

### Reliq CLI Data Extraction and Transformation

Source: https://github.com/tuvimen/reliq/blob/master/README.md

Demonstrates the usage of the reliq command-line tool for parsing and transforming data. It explains the `.u` operator for extracting unsigned integers and the `.a` operator for splitting strings into arrays, including custom delimiters. The example shows how to extract a list of years from a dataset using a combination of these operators and shell piping.

```shell
reliq '.years.a("\t").u table .int-values; [0] tr | "%i" / tr "\n" "\t"'
```

```json
{
    "years": [
        1930,
        1942,
        1948,
        1965,
        1989,
        1994,
        2010
    ]
}
```

--------------------------------

### Reliq Complex Nested Extraction with Transformations

Source: https://github.com/tuvimen/reliq/blob/master/README.md

A more advanced example of reliq usage, involving deeply nested fields, multiple transformations (`sed`), and conditional logic within the extraction process.

```shell
reliq '
    .signature div .signature #B>sig[0-9]* | "%i",
    dl .postprofile #B>profile[0-9]*; {
        dt l@[1]; {
            .avatar img src | "% (src)v",
            .user a c@[0] | "%i",
            .userid.u a href c@[0] | "% (href)v" / sed "s/.*[&;]u=([0-9]+).*/\1/" "E",
        },
        .userinfo.a("\a") dd l@[1] i@vf>" " | "%i\a" / tr '\n\t' sed "
            s/<strong>([^<]*)<\/strong>/\1/g
            s/ +:/:/
            /<ul [^>]*class=\"profile-icons">/{
                s/.*<a href=\"([^\"]*)\" title=\"Site [^\"]*".*/Site\t\1/
                t;d
            }
            /^[^<>]+:/!{s/^/Rank:/}
            s/: */\t/
        " "E" "\a"
    }
' index.html
```

--------------------------------

### reliq Build Options Configuration

Source: https://github.com/tuvimen/reliq/blob/master/README.md

Defines build configuration flags for the reliq project using a Makefile. These options control debugging, sanitization, stack limits, and HTML parsing modes.

```makefile
D := 0 # debug build
S := 0 # sanitizer build

O_SMALL_STACK := 0 # change internal limits for a small stack
O_PHPTAGS := 1 # support for <?php ?>
O_AUTOCLOSING := 1 # html quirks, can be disabled if you close your tag correctly

# only one should be set
O_HTML_FULL := 0 # full html sizes, you probably don't know what you're doing
O_HTML_SMALL := 1 # reasonable html sizes
O_HTML_VERY_SMALL := 0 # this can be set if you don't put thousands of spaces between attributes
```

--------------------------------

### RSS Feed Subscriptions

Source: https://github.com/tuvimen/reliq/blob/master/tests/basic/editing-output.html

Lists available RSS feed URLs for subscribing to updates from the website and related platforms.

```APIDOC
RSS Feeds:

  Main Website Feed:
    - URL: https://lukesmith.xyz/rss.xml
    - Description: Primary RSS feed for website updates.

  PeerTube Feed:
    - URL: https://lukesmith.xyz/peertube
    - Description: RSS feed for PeerTube channel updates.

  Odysee Feed:
    - URL: https://odysee.com/$/rss/@Luke/70
    - Description: RSS feed for Odysee channel updates.

  Not Related! Feed:
    - URL: https://notrelated.xyz/rss
    - Description: RSS feed for the Not Related! podcast.
```

--------------------------------

### Donation Methods

Source: https://github.com/tuvimen/reliq/blob/master/tests/basic/editing-output.html

Provides various methods for users to donate to the website owner. Includes cryptocurrency addresses, payment platform links, and email addresses for transfers.

```APIDOC
Donation Methods:

  Credit/Debit Card:
    - URL: https://lukesmith.xyz/donate
    - Description: Direct link for credit or debit card donations.

  Bitcoin (BTC):
    - Address: bc1qw5w6pxsk36aj324tmqrhhpmpfprxcfxe6qhetuv
    - QR Code: pix/btc.png
    - Description: Bitcoin address for direct cryptocurrency donations.

  Monero (XMR):
    - Address: 48jewbtxe4jU3MnzJFjTs3gVFWh2nRrAMWdUuUd7Ubo375LL4SjLTnMRKBrXburvEh38QSNLrJy3EateykVCypnm6gcT9bh
    - QR Code: pix/xmr.png
    - Description: Monero address for private cryptocurrency donations.

  Other Payment Platforms:
    - Paypal:
      - URL: https://paypal.me/lukemsmith
      - Description: Link to PayPal for donations.
    - Venmo:
      - Identifier: pix/venmo.svg (Logo reference)
      - Description: Venmo details for transfers.
    - Uphold:
      - Identifier: pix/uphold.svg (Logo reference)
      - Description: Uphold details for transfers.
    - Zelle:
      - Email: luke@lukesmith.xyz
      - Description: Zelle payment recipient email address.
```

--------------------------------

### Configure man page colors

Source: https://github.com/tuvimen/reliq/blob/master/README.md

A bash function to enhance the readability of man pages by applying color formatting to specific text elements. This improves the user experience when reading documentation.

```bash
man() {
    LESS_TERMCAP_md=$'\e[01;31m' \
    LESS_TERMCAP_me=$'\e[0m' \
    LESS_TERMCAP_se=$'\e[0m' \
    LESS_TERMCAP_so=$'\e[01;32;31m' \
    LESS_TERMCAP_ue=$'\e[0m' \
    LESS_TERMCAP_us=$'\e[01;34m' \
    command man "$@"
}
```

--------------------------------

### Basic Reliq Extraction with Field Assignment

Source: https://github.com/tuvimen/reliq/blob/master/README.md

Demonstrates how to extract data from HTML using reliq, assigning extracted values to fields for JSON-like output. It shows basic attribute extraction and newline formatting.

```shell
reliq '.links.a a href | "% (href)v\n", img src | "% (src)v\n"'
```

--------------------------------

### Reliq Nested Field Structure

Source: https://github.com/tuvimen/reliq/blob/master/README.md

Shows how to create nested JSON structures in reliq by nesting field definitions. It also demonstrates field precedence and how non-field expressions are handled.

```shell
reliq '
    .field dd; {
        time datetime | "% (datetime)v\a",
        a i@v>"<" | "%i\a",
        * l@[0] | "%i"
    } / tr '\n' sed "s/^\a*//;s/\a.*//"
'
```

```shell
reliq '
    .user {
        h4 class=b>message-name,
        * .MessageCard__user-info__name
    }; {
        .name [0] * c@[0] | "%i",
        .link [0] a class href | "% (href)v",
        .id.u [0] * data-user-id | "% (data-user-id)v"
    },
' index.html
```

--------------------------------

### Reliq Field Specification and Scope

Source: https://github.com/tuvimen/reliq/blob/master/README.md

Explains how fields are specified in reliq and how they are ignored if placed incorrectly within an expression, affecting JSON structure.

```shell
reliq '.some_fiELD-1 p | "%i"'
```

```shell
reliq 'ul; .a li' index.html
```

--------------------------------

### PHP Route Class Definition

Source: https://github.com/tuvimen/reliq/blob/master/tests/pretty/php.html

Defines a Route class for managing application routes. It handles HTTP methods, path matching with dynamic segments, and associated callback functions. The class includes methods for creating path segments with validators and checking incoming requests against defined routes.

```php
<?php
$ROUTES = [];

class Route {
    protected $method = null;
    protected $path = [];
    public $func = null;

    protected function create_path($str, ...$validators) {
        if (gettype($str) != "string") throw new Exception("str has to be a string");
        $size = strlen($str);
        if ($size == 0) throw new Exception("str cannot be empty");
        
        $ret = [];
        $start = 0;
        $i = 0;
        $val_count = count($validators);
        $val = 0;
        
        for (; $i < $size; $i++) {
            if ($str[$i] === '@') {
                if ($i-$start > 0) array_push($ret,substr($str,$start,$i-$start));
                if ($val >= $val_count) throw new Exception("not enough validators given");
                array_push($ret,$validators[$val++]);
                $start = ++$i;
            }
        }
        if ($size-$start > 0) array_push($ret,substr($str,$start,$size-$start));
        
        return $ret;
    }

    function __construct($method, $path, $func, ...$validators) {
        $this->method = $method;
        $this->path = $this->create_path($path,...$validators);
        $this->func = $func;
    }

    protected function check_path($str) {
        $pathl = count($this->path);
        $strl = strlen($str);
        $values = [];
        $strc = 0;
        $pathc = 0;
        
        while (True) {
            if ($strc >= $strl) {
                if ($pathc >= $pathl) break;
                return [False];
            }
            if ($pathc >= $pathl) return [False];
            
            if (gettype($this->path[$pathc]) === "string") {
                $len = strlen($this->path[$pathc]);
                if ($strc+$len > $strl || (strcasecmp($this->path[$pathc],substr($str,$strc,$len)) != 0)) return [False];
                $strc += $len;
            } else {
                $r = $this->path[$pathc](substr($str,$strc),'/');
                if ($r[0] == 0) return [False];
                $strc += $r[0];
                array_push($values,$r[1]);
            }
            $pathc++;
        }
        return [True,$values];
    }

    function check($method, $str) {
        if ($method !== $this->method) return [False];
        return $this->check_path($str);
    }
}
?>
```

--------------------------------

### Reliq Array Field Type for Repeated Tags

Source: https://github.com/tuvimen/reliq/blob/master/README.md

Demonstrates how a field type changes to an array when a block with a `|` format is applied to repeated tags, causing the block to execute for each tag.

```shell
reliq '
    .posts form #quickModForm; table l@[1]; tr l@[1] i@B>"id=\"subject_[0-9]*\"" i@v>".googlesyndication.com/"; {
        .postid.u div #B>subject_[0-9]* | "% (id)v" / sed "s/.*_//",
        .date td valign=middle; div .smalltext | "%i" / sed "s/.* ://;s/^<\/b> //;s/ &#187;//g;s/<br *\/>.*//;s/<[^>]*>//g;s/ *$//",
        .avatar td valign=top rowspan=2; img .avatar src | "% (src)v",
    } |,
    .title td #top_subject | "%i" / sed "s/[^:]*: //;s/([^(]*)//;s/&nbsp;//g;s/ *$//"
'
```

--------------------------------

### Reliq JSON Output with Duplicate Fields

Source: https://github.com/tuvimen/reliq/blob/master/README.md

Illustrates a scenario where repeating field names in a reliq script can lead to invalid JSON output, highlighting the importance of unique field names for proper JSON generation.

```shell
reliq '
    .a span #views | "%i",
    .a time datetime | "% (datetime)v\a"
'
```

--------------------------------

### Reliq Handling of Unassigned Expressions in Nested Fields

Source: https://github.com/tuvimen/reliq/blob/master/README.md

Illustrates how an expression without a field assignment within a nested field block is output before the JSON structure, potentially breaking JSON compatibility.

```shell
reliq '
    .user div #user; {
        .name span .user-name | "%i",
        .link [0] a href | "% (href)v",
        div .user-avatar; img src | "% (src)v\n"
    }
' index.html
```

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