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#!/usr/bin/env php
<?php
/*
* This file is part of Psy Shell.
*
* (c) 2012-2015 Justin Hileman
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
define('WRAP_WIDTH', 100);
$count = 0;
if (count($argv) !== 3 || !is_dir($argv[1])) {
echo "usage: build_manual path/to/manual output_filename.db\n";
exit(1);
}
function htmlwrap($text, $width = null)
{
if ($width === null) {
$width = WRAP_WIDTH;
}
$len = strlen($text);
$return = array();
$lastSpace = null;
$inTag = false;
$i = $tagWidth = 0;
do {
switch (substr($text, $i, 1)) {
case "\n":
$return[] = trim(substr($text, 0, $i));
$text = substr($text, $i);
$len = strlen($text);
$i = $lastSpace = 0;
continue;
case ' ':
if (!$inTag) {
$lastSpace = $i;
}
break;
case '<':
$inTag = true;
break;
case '>':
$inTag = false;
default:
}
if ($inTag) {
$tagWidth++;
}
$i++;
if (!$inTag && ($i - $tagWidth > $width)) {
$lastSpace = $lastSpace ?: $width;
$return[] = trim(substr($text, 0, $lastSpace));
$text = substr($text, $lastSpace);
$len = strlen($text);
$i = $tagWidth = 0;
}
} while ($i < $len);
$return[] = trim($text);
return implode("\n", $return);
}
function extract_paragraphs($element)
{
$paragraphs = array();
foreach ($element->getElementsByTagName('para') as $p) {
$text = '';
foreach ($p->childNodes as $child) {
// @todo: figure out if there's something we can do with tables.
if ($child instanceof DOMElement && $child->tagName === 'table') {
continue;
}
// skip references, because ugh.
if (preg_match('{^\s*&[a-z][a-z\.]+;\s*$}', $child->textContent)) {
continue;
}
$text .= $child->ownerDocument->saveXML($child);
}
if ($text = trim(preg_replace('{\n[ \t]+}', ' ', $text))) {
$paragraphs[] = $text;
}
}
return implode("\n\n", $paragraphs);
}
function format_doc($doc)
{
$chunks = array();
if (!empty($doc['description'])) {
$chunks[] = '<comment>Description:</comment>';
$chunks[] = indent_text(htmlwrap(thunk_tags($doc['description']), WRAP_WIDTH - 2));
$chunks[] = '';
}
if (!empty($doc['params'])) {
$chunks[] = '<comment>Param:</comment>';
$typeMax = max(array_map(function ($param) {
return strlen($param['type']);
}, $doc['params']));
$max = max(array_map(function ($param) {
return strlen($param['name']);
}, $doc['params']));
$template = ' <info>%-' . $typeMax . 's</info> <strong>%-' . $max . 's</strong> %s';
$indent = str_repeat(' ', $typeMax + $max + 6);
$wrapWidth = WRAP_WIDTH - strlen($indent);
foreach ($doc['params'] as $param) {
$desc = indent_text(htmlwrap(thunk_tags($param['description']), $wrapWidth), $indent, false);
$chunks[] = sprintf($template, $param['type'], $param['name'], $desc);
}
$chunks[] = '';
}
if (isset($doc['return']) || isset($doc['return_type'])) {
$chunks[] = '<comment>Return:</comment>';
$type = isset($doc['return_type']) ? $doc['return_type'] : 'unknown';
$desc = isset($doc['return']) ? $doc['return'] : '';
$indent = str_repeat(' ', strlen($type) + 4);
$wrapWidth = WRAP_WIDTH - strlen($indent);
if (!empty($desc)) {
$desc = indent_text(htmlwrap(thunk_tags($doc['return']), $wrapWidth), $indent, false);
}
$chunks[] = sprintf(' <info>%s</info> %s', $type, $desc);
$chunks[] = '';
}
array_pop($chunks); // get rid of the trailing newline
return implode("\n", $chunks);
}
function thunk_tags($text)
{
$tagMap = array(
'parameter>' => 'strong>',
'function>' => 'strong>',
'literal>' => 'return>',
'type>' => 'info>',
'constant>' => 'info>',
);
$andBack = array(
'&' => '&',
'&true;' => '<return>true</return>',
'&false;' => '<return>false</return>',
'&null;' => '<return>null</return>',
);
return strtr(strip_tags(strtr($text, $tagMap), '<strong><return><info>'), $andBack);
}
function indent_text($text, $indent = ' ', $leading = true)
{
return ($leading ? $indent : '') . str_replace("\n", "\n" . $indent, $text);
}
function find_type($xml, $paramName)
{
foreach ($xml->getElementsByTagName('methodparam') as $param) {
if ($type = $param->getElementsByTagName('type')->item(0)) {
if ($parameter = $param->getElementsByTagName('parameter')->item(0)) {
if ($paramName === $parameter->textContent) {
return $type->textContent;
}
}
}
}
}
$docs = array();
foreach (glob($argv[1] . '/*/*/*.xml') as $function) {
$funcname = basename($function);
if ($funcname === 'main.xml' || strpos($funcname, 'entities.') === 0) {
continue;
}
$xmlstr = str_replace('&', '&', file_get_contents($function));
$xml = new DOMDocument();
$xml->preserveWhiteSpace = false;
if (!@$xml->loadXml($xmlstr)) {
echo "XML Parse Error: $function\n";
continue;
}
$doc = array();
$refsect1s = $xml->getElementsByTagName('refsect1');
foreach ($refsect1s as $refsect1) {
$role = $refsect1->getAttribute('role');
switch ($role) {
case 'description':
$doc['description'] = extract_paragraphs($refsect1);
if ($synopsis = $refsect1->getElementsByTagName('methodsynopsis')->item(0)) {
foreach ($synopsis->childNodes as $node) {
if ($node instanceof DOMElement && $node->tagName === 'type') {
$doc['return_type'] = $node->textContent;
break;
}
}
}
break;
case 'returnvalues':
// do nothing.
$doc['return'] = extract_paragraphs($refsect1);
break;
case 'parameters':
$params = array();
$vars = $refsect1->getElementsByTagName('varlistentry');
foreach ($vars as $var) {
if ($name = $var->getElementsByTagName('parameter')->item(0)) {
$params[] = array(
'name' => '$' . $name->textContent,
'type' => find_type($xml, $name->textContent),
'description' => extract_paragraphs($var),
);
}
}
$doc['params'] = $params;
break;
}
}
// and the purpose
if ($purpose = $xml->getElementsByTagName('refpurpose')->item(0)) {
$desc = htmlwrap($purpose->textContent);
if (isset($doc['description'])) {
$desc .= "\n\n" . $doc['description'];
}
$doc['description'] = trim($desc);
}
$formatted = format_doc($doc);
foreach ($xml->getElementsByTagName('refname') as $ref) {
$docs[$ref->textContent] = $formatted;
}
}
if (is_file($argv[2])) {
unlink($argv[2]);
}
$db = new PDO('sqlite:' . $argv[2]);
$db->query('CREATE TABLE php_manual (id char(256) PRIMARY KEY, doc TEXT)');
$cmd = $db->prepare('INSERT INTO php_manual (id, doc) VALUES (?, ?)');
foreach ($docs as $id => $doc) {
$cmd->execute(array($id, $doc));
}