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4887357269
RFC: https://wiki.php.net/rfc/flexible_heredoc_nowdoc_syntaxes * The ending label no longer has to be followed by a semicolon or newline. Any non-label character is fine. * The ending label may be indented. The indentation will be stripped from all lines in the heredoc/nowdoc string. Lexing of heredoc strings performs a scan-ahead to determine the indentation of the ending label, so that the correct amount of indentation can be removed when calculting the semantic values for use by the parser. This makes the implementation quite a bit more complicated than we would like :/
89 lines
2.8 KiB
C
89 lines
2.8 KiB
C
/*
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+----------------------------------------------------------------------+
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| Zend Engine |
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+----------------------------------------------------------------------+
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| Copyright (c) 1998-2018 Zend Technologies Ltd. (http://www.zend.com) |
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+----------------------------------------------------------------------+
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| This source file is subject to version 2.00 of the Zend license, |
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| that is bundled with this package in the file LICENSE, and is |
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| available through the world-wide-web at the following url: |
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| http://www.zend.com/license/2_00.txt. |
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| If you did not receive a copy of the Zend license and are unable to |
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| obtain it through the world-wide-web, please send a note to |
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| license@zend.com so we can mail you a copy immediately. |
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+----------------------------------------------------------------------+
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| Authors: Andi Gutmans <andi@zend.com> |
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| Zeev Suraski <zeev@zend.com> |
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+----------------------------------------------------------------------+
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*/
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/* $Id$ */
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#ifndef ZEND_SCANNER_H
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#define ZEND_SCANNER_H
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typedef struct _zend_lex_state {
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unsigned int yy_leng;
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unsigned char *yy_start;
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unsigned char *yy_text;
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unsigned char *yy_cursor;
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unsigned char *yy_marker;
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unsigned char *yy_limit;
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int yy_state;
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zend_stack state_stack;
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zend_ptr_stack heredoc_label_stack;
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zend_file_handle *in;
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uint32_t lineno;
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zend_string *filename;
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/* original (unfiltered) script */
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unsigned char *script_org;
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size_t script_org_size;
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/* filtered script */
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unsigned char *script_filtered;
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size_t script_filtered_size;
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/* input/output filters */
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zend_encoding_filter input_filter;
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zend_encoding_filter output_filter;
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const zend_encoding *script_encoding;
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/* hooks */
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void (*on_event)(zend_php_scanner_event event, int token, int line, void *context);
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void *on_event_context;
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zend_ast *ast;
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zend_arena *ast_arena;
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} zend_lex_state;
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typedef struct _zend_heredoc_label {
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char *label;
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int length;
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int indentation;
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zend_bool indentation_uses_spaces;
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} zend_heredoc_label;
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BEGIN_EXTERN_C()
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ZEND_API void zend_save_lexical_state(zend_lex_state *lex_state);
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ZEND_API void zend_restore_lexical_state(zend_lex_state *lex_state);
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ZEND_API int zend_prepare_string_for_scanning(zval *str, char *filename);
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ZEND_API void zend_multibyte_yyinput_again(zend_encoding_filter old_input_filter, const zend_encoding *old_encoding);
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ZEND_API int zend_multibyte_set_filter(const zend_encoding *onetime_encoding);
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ZEND_API void zend_lex_tstring(zval *zv);
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END_EXTERN_C()
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#endif
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/*
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* Local variables:
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* tab-width: 4
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* c-basic-offset: 4
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* indent-tabs-mode: t
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* End:
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* vim600: sw=4 ts=4 fdm=marker
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* vim<600: sw=4 ts=4
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*/
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