/// Main script ///
///////////////////
echo 'Building temporary preproprocessed grammar file.', "\n";
$grammarCode = file_get_contents($grammarFile);
$grammarCode = resolveNodes($grammarCode);
$grammarCode = resolveMacros($grammarCode);
$grammarCode = resolveArrays($grammarCode);
$grammarCode = resolveStackAccess($grammarCode);
file_put_contents($tmpGrammarFile, $grammarCode);
$additionalArgs = $optionDebug ? '-t -v' : '';
echo "Building parser.\n";
$output = trim(shell_exec("{$kmyacc} {$additionalArgs} -l -m {$skeletonFile} {$tmpGrammarFile} 2>&1"));
echo "Output: \"{$output}\"\n";
$resultCode = file_get_contents($tmpResultFile);
$resultCode = removeTrailingWhitespace($resultCode);
ensureDirExists(dirname($parserResultFile));
file_put_contents($parserResultFile, $resultCode);
unlink($tmpResultFile);
if (!$optionKeepTmpGrammar) {
unlink($tmpGrammarFile);
}
///////////////////////////////
/// Preprocessing functions ///
///////////////////////////////
function resolveNodes($code)
{
return preg_replace_callback('~(?<name>[A-Z][a-zA-Z_\\\\]++)\\s*' . PARAMS . '~', function ($matches) {
// recurse
$matches['params'] = resolveNodes($matches['params']);
$params = magicSplit('(?:' . PARAMS . '|' . ARGS . ')(*SKIP)(*FAIL)|,', $matches['params']);
$paramCode = '';
$grammarCode = resolveNodes($grammarCode);
$grammarCode = resolveMacros($grammarCode);
$grammarCode = resolveStackAccess($grammarCode);
file_put_contents($tmpGrammarFile, $grammarCode);
$additionalArgs = $optionDebug ? '-t -v' : '';
echo "Building $name parser.\n";
$output = trim(shell_exec("$kmyacc $additionalArgs -l -m $skeletonFile -p $name $tmpGrammarFile 2>&1"));
echo "Output: \"$output\"\n";
$resultCode = file_get_contents($tmpResultFile);
$resultCode = removeTrailingWhitespace($resultCode);
ensureDirExists($resultDir);
file_put_contents("$resultDir/$name.php", $resultCode);
unlink($tmpResultFile);
echo "Building token definition.\n";
$output = trim(shell_exec("$kmyacc -l -m $tokensTemplate $tmpGrammarFile 2>&1"));
assert($output === '');
rename($tmpResultFile, $tokensResultsFile);
if (!$optionKeepTmpGrammar) {
unlink($tmpGrammarFile);
}
}
///////////////////////////////
/// Preprocessing functions ///