// groovy.rl written by Mitchell Foral. mitchell<att>caladbolg<dott>net.
/************************* Required for every parser *************************/
#ifndef OHCOUNT_GROOVY_PARSER_H
#define OHCOUNT_GROOVY_PARSER_H
#include "../parser_macros.h"
// the name of the language
const char *GROOVY_LANG = LANG_GROOVY;
// the languages entities
const char *groovy_entities[] = {
"space", "comment", "string", "any"
};
// constants associated with the entities
enum {
GROOVY_SPACE = 0, GROOVY_COMMENT, GROOVY_STRING, GROOVY_ANY
};
/*****************************************************************************/
%%{
machine groovy;
write data;
include common "common.rl";
# Line counting machine
action groovy_ccallback {
switch(entity) {
case GROOVY_SPACE:
ls
break;
case GROOVY_ANY:
code
break;
case INTERNAL_NL:
std_internal_newline(GROOVY_LANG)
break;
case NEWLINE:
std_newline(GROOVY_LANG)
}
}
groovy_line_comment =
'//' @comment (
escaped_newline %{ entity = INTERNAL_NL; } %groovy_ccallback
|
ws
|
(nonnewline - ws) @comment
)*;
groovy_block_comment =
'/*' @comment (
newline %{ entity = INTERNAL_NL; } %groovy_ccallback
|
ws
|
(nonnewline - ws) @comment
)* :>> '*/';
groovy_comment = groovy_line_comment | groovy_block_comment;
groovy_sq_str =
'\'' @code (
escaped_newline %{ entity = INTERNAL_NL; } %groovy_ccallback
|
ws
|
[^\t '\\] @code
|
'\\' nonnewline @code
)* '\'';
groovy_dq_str =
'"' @code (
escaped_newline %{ entity = INTERNAL_NL; } %groovy_ccallback
|
ws
|
[^\t "\\] @code
|
'\\' nonnewline @code
)* '"';
groovy_string = groovy_sq_str | groovy_dq_str;
groovy_line := |*
spaces ${ entity = GROOVY_SPACE; } => groovy_ccallback;
groovy_comment;
groovy_string;
newline ${ entity = NEWLINE; } => groovy_ccallback;
^space ${ entity = GROOVY_ANY; } => groovy_ccallback;
*|;
# Entity machine
action groovy_ecallback {
callback(GROOVY_LANG, groovy_entities[entity], cint(ts), cint(te),
userdata);
}
groovy_line_comment_entity = '//' (escaped_newline | nonnewline)*;
groovy_block_comment_entity = '/*' any* :>> '*/';
groovy_comment_entity =
groovy_line_comment_entity | groovy_block_comment_entity;
groovy_entity := |*
space+ ${ entity = GROOVY_SPACE; } => groovy_ecallback;
groovy_comment_entity ${ entity = GROOVY_COMMENT; } => groovy_ecallback;
# TODO:
^space;
*|;
}%%
/* Parses a string buffer with Groovy 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_groovy(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) ? groovy_en_groovy_line : groovy_en_groovy_entity;
%% write exec;
// if no newline at EOF; callback contents of last line
if (count) { process_last_line(GROOVY_LANG) }
}
#endif