// ada.rl written by Mitchell Foral. mitchell<att>caladbolg<dott>net.
/************************* Required for every parser *************************/
#ifndef OHCOUNT_ADA_PARSER_H
#define OHCOUNT_ADA_PARSER_H
#include "../parser_macros.h"
// the name of the language
const char *ADA_LANG = LANG_ADA;
// the languages entities
const char *ada_entities[] = {
"space", "comment", "string", "any"
};
// constants associated with the entities
enum {
ADA_SPACE = 0, ADA_COMMENT, ADA_STRING, ADA_ANY
};
/*****************************************************************************/
%%{
machine ada;
write data;
include common "common.rl";
# Line counting machine
action ada_ccallback {
switch(entity) {
case ADA_SPACE:
ls
break;
case ADA_ANY:
code
break;
case INTERNAL_NL:
std_internal_newline(ADA_LANG)
break;
case NEWLINE:
std_newline(ADA_LANG)
}
}
ada_comment = '--' @comment nonnewline*;
ada_string = '"' @code [^\r\n\f"]* '"';
ada_line := |*
spaces ${ entity = ADA_SPACE; } => ada_ccallback;
ada_comment;
ada_string;
newline ${ entity = NEWLINE; } => ada_ccallback;
^space ${ entity = ADA_ANY; } => ada_ccallback;
*|;
# Entity machine
action ada_ecallback {
callback(ADA_LANG, ada_entities[entity], cint(ts), cint(te), userdata);
}
ada_comment_entity = '--' nonnewline*;
ada_entity := |*
space+ ${ entity = ADA_SPACE; } => ada_ecallback;
ada_comment_entity ${ entity = ADA_COMMENT; } => ada_ecallback;
# TODO:
^space;
*|;
}%%
/************************* Required for every parser *************************/
/* Parses a string buffer with Ada 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_ada(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) ? ada_en_ada_line : ada_en_ada_entity;
%% write exec;
// if no newline at EOF; callback contents of last line
if (count) { process_last_line(ADA_LANG) }
}
#endif
/*****************************************************************************/