/************************* Required for every parser *************************/
#ifndef OHCOUNT_DART_PARSER_H
#define OHCOUNT_DART_PARSER_H
#include "../parser_macros.h"
// the name of the language
const char *DART_LANG = LANG_DART;
// the languages entities
const char *dart_entities[] = {
"space", "comment", "any"
};
// constants associated with the entities
enum {
DART_SPACE = 0, DART_COMMENT, DART_ANY
};
/*****************************************************************************/
%%{
machine dart;
write data;
include common "common.rl";
# Line counting machine
action dart_ccallback {
switch(entity) {
case DART_SPACE:
ls
break;
case DART_ANY:
code
break;
case INTERNAL_NL:
std_internal_newline(DART_LANG)
break;
case NEWLINE:
std_newline(DART_LANG)
}
}
dart_line_comment =
'//' @comment (
escaped_newline %{ entity = INTERNAL_NL; } %dart_ccallback
|
ws
|
(nonnewline - ws) @comment
)*;
dart_block_comment =
'/*' @comment (
newline %{ entity = INTERNAL_NL; } %dart_ccallback
|
ws
|
(nonnewline - ws) @comment
)* :>> '*/';
dart_comment = dart_line_comment | dart_block_comment;
dart_line := |*
spaces ${ entity = DART_SPACE; } => dart_ccallback;
dart_comment;
newline ${ entity = NEWLINE; } => dart_ccallback;
^space ${ entity = DART_ANY; } => dart_ccallback;
*|;
# Entity machine
# TODO: This is a placeholder and most entities are missing.
action dart_ecallback {
callback(DART_LANG, dart_entities[entity], cint(ts), cint(te), userdata);
}
dart_line_comment_entity = '//' (escaped_newline | nonnewline)*;
dart_block_comment_entity = '/*' any* :>> '*/';
dart_comment_entity = dart_line_comment_entity | dart_block_comment_entity;
dart_entity := |*
space+ ${ entity = DART_SPACE; } => dart_ecallback;
dart_comment_entity ${ entity = DART_COMMENT; } => dart_ecallback;
^space;
*|;
}%%
/************************* Required for every parser *************************/
/* Parses a string buffer with Dart code.
*
* @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_dart(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) ? dart_en_dart_line : dart_en_dart_entity;
%% write exec;
// if no newline at EOF; callback contents of last line
if (count) { process_last_line(DART_LANG) }
}
#endif
/*****************************************************************************/