Define context keywords relying on Token constants

[Tithugues]

I always had issues to understand the "magic" keyword integers of the Context* files. Would it make sense to rely on Token constants to define them?

Additionally, I added a variable for the default bit needed for all keywords.

[M393]

These files are autogenerated with https://github.com/phpmyadmin/sql-parser/blob/master/tools/run_generators.sh

This is the code that prints the keywords:

sql-parser/src/Tools/ContextGenerator.php

Lines 234 to 247 in 3bc8d0d

	foreach ($words as $type => $wordsByType) {
	foreach ($wordsByType as $len => $wordsByLen) {
	$count = round(($line - $spaces) / ($len + 9)); // strlen("'' => 1, ") = 9
	$i = 0;
	foreach ($wordsByLen as $word) {
	if ($i === 0) {
	$ret .= str_repeat(' ', $spaces);
	}
	$ret .= sprintf('\'%s\' => %s, ', $word, $type);
	if (++$i !== $count && ++$i <= $count) {
	continue;
	}

[Tithugues]

OK, thanks. Then I’ll take a look at the generator. 😅