// php.rl written by Mitchell Foral. mitchell<att>caladbolg<dott>net.
/************************* Required for every parser *************************/
#ifndef OHCOUNT_PHP_PARSER_H
#define OHCOUNT_PHP_PARSER_H
#include "../parser_macros.h"
// the name of the language
const char *PHP_LANG = LANG_PHP;
// the languages entities
const char *php_entities[] = {
"space", "comment", "string", "any"
};
// constants associated with the entities
enum {
PHP_SPACE = 0, PHP_COMMENT, PHP_STRING, PHP_ANY
};
/*****************************************************************************/
%%{
machine php;
write data;
include common "common.rl";
# Line counting machine
action php_ccallback {
switch(entity) {
case PHP_SPACE:
ls
break;
case PHP_ANY:
code
break;
case INTERNAL_NL:
std_internal_newline(PHP_LANG)
break;
case NEWLINE:
std_newline(PHP_LANG)
break;
case CHECK_BLANK_ENTRY:
check_blank_entry(PHP_LANG)
break;
}
}
php_line_comment = ('//' | '#') @comment nonnewline*;
php_block_comment =
'/*' @comment (
newline %{ entity = INTERNAL_NL; } %php_ccallback
|
ws
|
(nonnewline - ws) @comment
)* :>> '*/';
php_comment = php_line_comment | php_block_comment;
php_sq_str =
'\'' @enqueue @code (
newline %{ entity = INTERNAL_NL; } %php_ccallback
|
ws
|
[^\r\n\f'\\] @code
|
'\\' nonnewline @code
)* '\'' @commit @code;
php_dq_str =
'"' @enqueue @code (
newline %{ entity = INTERNAL_NL; } %php_ccallback
|
ws
|
[^\r\n\f"\\] @code
|
'\\' nonnewline @code
)* '"' @commit @code;
# TODO: heredoc; see ruby.rl for details.
php_string = php_sq_str | php_dq_str;
php_line := |*
spaces ${ entity = PHP_SPACE; } => php_ccallback;
php_comment;
php_string;
newline ${ entity = NEWLINE; } => php_ccallback;
^space ${ entity = PHP_ANY; } => php_ccallback;
*|;
# Entity machine
action php_ecallback {
callback(PHP_LANG, php_entities[entity], cint(ts), cint(te), userdata);
}
php_line_comment_entity = ('#' | '//') nonnewline*;
php_block_comment_entity = '/*' any* :>> '*/';
php_comment_entity = php_line_comment_entity | php_block_comment_entity;
php_entity := |*
space+ ${ entity = PHP_SPACE; } => php_ecallback;
php_comment_entity ${ entity = PHP_COMMENT; } => php_ecallback;
# TODO:
^space;
*|;
}%%
/************************* Required for every parser *************************/
/* Parses a string buffer with PHP code (not in HTML).
*
* @param *buffer The string to parse.
* @param length The length of the string to parse.
* @param count Integer flag specifying whether or not to count lines. If yes,
* uses the Ragel machine optimized for counting. Otherwise uses the Ragel
* machine optimized for returning entity positions.
* @param *callback Callback function. If count is set, callback is called for
* every line of code, comment, or blank with 'lcode', 'lcomment', and
* 'lblank' respectively. Otherwise callback is called for each entity found.
*/
void parse_php(char *buffer, int length, int count,
void (*callback) (const char *lang, const char *entity, int s,
int e, void *udata),
void *userdata
) {
init
%% write init;
cs = (count) ? php_en_php_line : php_en_php_entity;
%% write exec;
// if no newline at EOF; callback contents of last line
if (count) { process_last_line(PHP_LANG) }
}
#endif
/*****************************************************************************/