string.php
<?php
namespace Tlf\Lexer\PhpNew;
trait StringDirectives {
public $_string_directives = [
/** Expect all string formats */
'string'=>[
'is'=>[
':string_single',
':string_double',
':heredoc',
],
],
'string_backslash'=>[
'start'=>[
'match'=>'/\\\\$/',
//'stop',
'halt.all',
//'this:handleStringBackslash',
],
'stop'=>[
'stop',
'stack.move_to_front unstarted',
],
],
'string_instructions'=>[
'start'=>[
'rewind 1',
'buffer.clear',
'forward 1',
'then :string_backslash',
],
'stop'=>[
// 'ast.push word',
// 'previous.set string',
//'this:handleString',
'previous.ast_push xpn declaration !'=>'_token:buffer',
'previous.ast_push xpn words !'=>'_token:buffer',
'rewind 1',
// 'buffer.clear',
'directive.pop',
]
],
'string_single'=>[
'start'=>[ // expect '
'match'=>"/^'$/",
'inherit :string_instructions.start', // clear buffer(except current char), expect backslash
'then :string_single.stop'=>[
'start'=>[
'inherit :string_instructions.stop',
]
],
],
'stop'=>[
'match'=>"'",
'buffer.clear',
],
],
'string_double'=>[
'start'=>[
'match'=>'/^"$/',
'inherit :string_instructions.start',
'then :string_double.stop'=>[
'start'=>[
'inherit :string_instructions.stop',
]
],
],
'stop'=>[
'match'=>'"',
'buffer.clear',
],
],
'heredoc'=>[
// also capturing nowdoc
'start'=>[
'match'=>'<<<',
'then :heredoc_key'
],
'stop'=>[
'rewind 1',
'stop',
],
],
'heredoc_key'=>[
'start'=>[
'match'=>'/\'?([a-zA-Z\_0-9]+)\'?[^a-zA-Z0-9_]/',
'rewind 1',
'previous.set heredoc_key !'=>'_token:match 1',
],
'stop'=>[
'match !'=>'_lexer:previous heredoc_key',
'previous.set string',
'buffer.clear',
'directive.pop',
// 'print' => "\n\n\n---\n",
// 'die !' => '_lexer:previous string',
]
],
];
}