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Add attributes for renderers and reorganise codebase
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@assertchris
assertchris committed Aug 17, 2017
1 parent 2879f11 commit 0c82021
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Showing 3 changed files with 1,519 additions and 205 deletions.
3 changes: 2 additions & 1 deletion composer.json
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Original file line number Diff line number Diff line change
Expand Up @@ -6,7 +6,8 @@
},
"autoload": {
"files": [
"src/functions.php"
"src/parser.php",
"src/renderers.php"
]
},
"extra": {
Expand Down
309 changes: 105 additions & 204 deletions src/functions.php → src/parser.php
View file
Original file line number Diff line number Diff line change
Expand Up @@ -19,9 +19,20 @@ function tokens($code) {
$attributeStarted = null;
$attributeEnded = null;

$expressionLevel = 0;
$expressionStarted = null;
$expressionEnded = null;

$nestedLevel = 0;
$inQuote = false;

$carry = 0;

while ($cursor < $length) {
if ($code[$cursor] === '"' || $code[$cursor] === "'" && $code[$cursor - 1] !== "\\") {
$inQuote = !$inQuote;
}

if ($code[$cursor] === "{" && $elementStarted !== null) {
if ($attributeLevel === 0) {
$attributeStarted = $cursor;
Expand All @@ -38,7 +49,7 @@ function tokens($code) {
}
}

if ($attributeStarted && $attributeEnded) {
if ($attributeStarted !== null && $attributeEnded !== null) {
$position = (string) count($attributes);
$positionLength = strlen($position);

Expand All @@ -62,10 +73,60 @@ function tokens($code) {
continue;
}

if ($code[$cursor] === "{" && $elementStarted === null && $nestedLevel > 0) {
if ($expressionLevel === 0) {
$expressionStarted = $cursor;
}

$expressionLevel++;
}

if ($code[$cursor] === "}" && $elementStarted === null && $nestedLevel > 0) {
$expressionLevel--;

if ($expressionLevel === 0) {
$expressionEnded = $cursor;
}
}

if ($expressionStarted !== null && $expressionEnded !== null) {
$distance = $expressionEnded - $expressionStarted;

$carry += $cursor;

$before = trim(substr($code, 0, $expressionStarted));
$expression = trim(substr($code, $expressionStarted + 1, $distance - 1));
$after = trim(substr($code, $expressionEnded + 1));

$tokens[] = $before;
$tokens[] = ["expression" => compile($expression), "started" => $carry];

$code = $after;
$length = strlen($code);
$cursor = 0;

$expressionStarted = null;
$expressionEnded = null;

continue;
}

preg_match("#^</?[a-zA-Z]#", substr($code, $cursor, 3), $matchesStart);

if (count($matchesStart) && $attributeLevel < 1) {
if (
count($matchesStart)
&& $attributeLevel < 1
&& $expressionLevel < 1
&& !$inQuote
) {
$elementLevel++;

if ($matchesStart[0][1] !== "/") {
$nestedLevel++;
} else {
$nestedLevel--;
}

$elementStarted = $cursor;
}

Expand All @@ -77,6 +138,7 @@ function tokens($code) {
&& !$matchesEqualBefore && !$matchesEqualAfter
&& $attributeLevel < 1
&& $elementStarted !== null
&& $expressionStarted === null
) {
$elementLevel--;
$elementEnded = $cursor;
Expand All @@ -101,9 +163,21 @@ function tokens($code) {
$token["attributes"] = $attributes;
}

$tokens[] = $before;
if ($expressionStarted !== null) {
$tokens[] = ["expression" => $before, "started" => $expressionStarted];
} else {
$tokens[] = $before;
}

$tokens[] = $token;

if (preg_match("#/>$#", $tag)) {
preg_match("#<([a-zA-Z]+)#", $tag, $matchesName);

$name = $matchesName[1];
$tokens[] = ["tag" => "</{$name}>"];
}

$attributes = [];

$code = $after;
Expand Down Expand Up @@ -234,7 +308,7 @@ function parse($nodes) {
}
}

preg_match_all("#([a-zA-Z]+)={([^}]+)}#", $node["tag"], $dynamic);
preg_match_all("#([a-zA-Z][a-zA-Z-_]+)={([^}]+)}#", $node["tag"], $dynamic);

if (count($dynamic[0])) {
foreach($dynamic[1] as $key => $value) {
Expand All @@ -253,30 +327,50 @@ function parse($nodes) {
$children[] = parse([$child]);
}

else if (isset($child["expression"])) {
$children[] = $child["expression"];
}

else {
$children[] = "\"" . addslashes($child["text"]) . "\"";
}
}

$props["children"] = $children;

if (function_exists("Pre\\Phpx\\Renderer\\_" . $node["name"])) {
$code .= "Pre\\Phpx\\Renderer\\_" . $node["name"] . "([" . PHP_EOL;
if (function_exists("\\Pre\\Phpx\\Renderer\\__" . $node["name"])) {
$code .= "\\Pre\\Phpx\\Renderer\\__" . $node["name"] . "([" . PHP_EOL;
}

else {
$code .= $node["name"] . "([" . PHP_EOL;
$name = $node["name"];
$code .= "(new {$name})->render([" . PHP_EOL;
}

foreach ($props as $key => $value) {
if ($key === "children") {
$code .= "\"children\" => [" . PHP_EOL;
$children = array_filter($children, function($child) {
return trim($child, "\"'");
});

$children = array_map("trim", $children);

$children = array_values($children);

foreach ($children as $child) {
$code .= "{$child}," . PHP_EOL;
if (count($children) === 1) {
$code .= "\"children\" => " . $children[0] . "," . PHP_EOL;
}

else {
$code .= "\"children\" => [" . PHP_EOL;

foreach ($children as $child) {
$code .= "{$child}," . PHP_EOL;
}

$code .= "]," . PHP_EOL;
}

$code .= "]," . PHP_EOL;
}

else {
Expand All @@ -294,196 +388,3 @@ function parse($nodes) {
function compile($code) {
return parse(nodes(tokens($code)));
}

namespace Pre\Phpx\Renderer;

use Closure;
use Pre\Collections\Collection;

function element($name, $props, callable $attrs = null) {
$code = "<{$name}";

$className = $props["className"] ?? null;

if (is_callable($className)) {
$className = $className();
}

if ($className instanceof Collection) {
$className = $className->toArray();
}

if (is_array($className)) {
$combined = "";

foreach ($className as $key => $value) {
if (is_string($key)) {
$combined .= !!$value ? " {$key}" : "";
}

else {
$combined .= " {$value}";
}
}

$className = trim($combined);
}

if ($className) {
$code .= " class='{$className}'";
}

$style = $props["style"] ?? null;

if (is_callable($style)) {
$style = $style();
}

if ($style instanceof Collection) {
$style = $style->toArray();
}

if (is_array($style)) {
$styles = [];

foreach ($style as $key => $value) {
$styles[] = "{$key}: {$value}";
}

$style = join("; ", $styles);
}

if ($style) {
$code .= " style='{$style}'";
}

$code .= ">";

foreach ($props["children"] as $child) {
$code .= $child;
}

$code .= "</{$name}>";

return $code;
}


define("ELEMENTS", [
"a",
"abbr",
"address",
"area",
"article",
"aside",
"audio",
"b",
"base",
"bdi",
"bdo",
"blockquote",
"body",
"br",
"button",
"canvas",
"caption",
"cite",
"code",
"col",
"colgroup",
"data",
"datalist",
"dd",
"del",
"details",
"dfn",
"div",
"dl",
"dt",
"em",
"embed",
"fieldset",
"figcaption",
"figure",
"footer",
"form",
"h1",
"h2",
"h3",
"h4",
"h5",
"h6",
"head",
"header",
"hr",
"html",
"i",
"iframe",
"img",
"input",
"ins",
"kbd",
"label",
"legend",
"li",
"link",
"main",
"map",
"mark",
"meta",
"meter",
"nav",
"noframes",
"noscript",
"object",
"ol",
"optgroup",
"option",
"output",
"p",
"param",
"pre",
"progress",
"q",
"rp",
"rt",
"rtc",
"ruby",
"s",
"samp",
"script",
"section",
"select",
"slot",
"small",
"source",
"span",
"strong",
"style",
"sub",
"summary",
"sup",
"table",
"tbody",
"td",
"template",
"textarea",
"tfoot",
"th",
"thead",
"time",
"title",
"tr",
"track",
"u",
"ul",
"var",
"video",
"wbr",
]);

foreach (ELEMENTS as $element) {
eval("namespace Pre\Phpx\Renderer { function _{$element}(\$props) {
return element('{$element}', \$props);
} }");
}
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