// ebuild.rl written by Mitchell Foral. mitchell<att>caladbolg<dott>net
/************************* Required for every parser *************************/
#ifndef OHCOUNT_EBUILD_PARSER_H
#define OHCOUNT_EBUILD_PARSER_H
#include "../parser_macros.h"
// the name of the language
const char *EBUILD_LANG = LANG_EBUILD;
// the languages entities
const char *ebuild_entities[] = {
"space", "comment", "string", "any"
};
// constants associated with the entities
enum {
EBUILD_SPACE = 0, EBUILD_COMMENT, EBUILD_STRING, EBUILD_ANY
};
/*****************************************************************************/
%%{
machine ebuild;
write data;
include common "common.rl";
# Line counting machine
action ebuild_ccallback {
switch(entity) {
case EBUILD_SPACE:
ls
break;
case EBUILD_ANY:
code
break;
case INTERNAL_NL:
std_internal_newline(EBUILD_LANG)
break;
case NEWLINE:
std_newline(EBUILD_LANG)
}
}
ebuild_comment = '#' @comment nonnewline*;
ebuild_sq_str = '\'' @code ([^\r\n\f'\\] | '\\' nonnewline)* '\'';
ebuild_dq_str = '"' @code ([^\r\n\f"\\] | '\\' nonnewline)* '"';
ebuild_string = ebuild_sq_str | ebuild_dq_str;
ebuild_line := |*
spaces ${ entity = EBUILD_SPACE; } => ebuild_ccallback;
ebuild_comment;
ebuild_string;
newline ${ entity = NEWLINE; } => ebuild_ccallback;
^space ${ entity = EBUILD_ANY; } => ebuild_ccallback;
*|;
# Entity machine
action ebuild_ecallback {
callback(EBUILD_LANG, ebuild_entities[entity], cint(ts), cint(te),
userdata);
}
ebuild_comment_entity = '#' nonnewline*;
ebuild_entity := |*
space+ ${ entity = EBUILD_SPACE; } => ebuild_ecallback;
ebuild_comment_entity ${ entity = EBUILD_COMMENT; } => ebuild_ecallback;
# TODO:
^space;
*|;
}%%
/************************* Required for every parser *************************/
/* Parses a string buffer with ebuild 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_ebuild(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) ? ebuild_en_ebuild_line : ebuild_en_ebuild_entity;
%% write exec;
// if no newline at EOF; callback contents of last line
if (count) { process_last_line(EBUILD_LANG) }
}
#endif
/*****************************************************************************/