php-completion-generator.php

#!/usr/bin/env php
<?php

class PhpCompletion
{
    public static function make_completion()
    {
        $completion = new self;
        $completion->print_version();
        $completion->make_completion_constants();
        $completion->make_completion_functions();
        $completion->make_completion_classes();
        $completion->make_completion_keywords();
    }

    public function print_version()
    {
        echo ";;; PHP completion list for " . PHP_VERSION . PHP_EOL . PHP_EOL;
    }

    public function make_completion_constants()
    {
        $words = array_keys(get_defined_constants());
        $this->make_completion_list('constants', $words);
    }

    public function make_completion_functions()
    {
        $all_functions = get_defined_functions();
        $words = $all_functions['internal'];
        $this->make_completion_list('functions', $words);
    }

    public function make_completion_classes()
    {
        $words = get_declared_classes();
        $this->make_completion_list('classes', $words);
    }

    public function make_completion_keywords()
    {
        $words = array(
            "abstract", "and", "array", "as", "break", "case", "catch",
            "class", "clone", "const", "continue", "declare", "default",
            "do", "else", "elseif", "enddeclare", "endfor", "endforeach",
            "endif", "endswitch", "endwhile", "extends", "final", "for",
            "foreach", "function", "global", "goto", "if", "implements",
            "interface", "instanceof", "namespace", "new", "or", "private",
            "protected", "public", "static", "switch", "throw", "try", "use",
            "var", "while", "xor", "__CLASS__", "__DIR__", "__FILE__",
            "__LINE__", "__FUNCTION__", "__METHOD__", "__NAMESPACE__",
            "die", "echo", "empty", "exit", "eval", "include", "include_once",
            "isset", "list", "require", "require_once", "return", "print",
            "unset"
        );

        if (version_compare(PHP_VERSION, '5.4.0', '>=')) {
            $words = array_merge($words,
                array('callable', 'insteadof', 'trait', '__TRAIT__'));
        }

        $this->make_completion_list('keywords', $words);
    }
    
    public function make_completion_list($theType, $theList)
    {
        sort($theList);

        echo "(setq php-completion-list-$theType" . PHP_EOL;
        echo "      '(" . PHP_EOL;
        foreach ($theList as $word) {
            echo "        \"$word\"" . PHP_EOL;
        }
        echo '      ))' . PHP_EOL . PHP_EOL;
    }    
}

PhpCompletion::make_completion();

/**
 * ;;; PHP completion list for 5.4.13
 *
 * (setq php-completion-list-constants
 *       '(
 *         "ABDAY_1"
 *         "ABDAY_2"
 *         "ABDAY_3"
 *         ...
 *       ))
 *
 * (setq php-completion-list-functions
 *       '(
 *         "abs"
 *         "acos"
 *         "acosh"
 *         ...
 *       ))
 *
 * (setq php-completion-list-classes
 *       '(
 *         "AppendIterator"
 *         "ArrayIterator"
 *         "ArrayObject"
 *         ...
 *       ))
 *
 * (setq php-completion-list-keywords
 *       '(
 *         "__CLASS__"
 *         "__DIR__"
 *         "__FILE__"
 *         ...
 *       ))
 */