// makefile.rl written by Mitchell Foral. mitchell<att>caladbolg<dott>net.
/************************* Required for every parser *************************/
#ifndef OHCOUNT_MAKEFILE_PARSER_H
#define OHCOUNT_MAKEFILE_PARSER_H
#include "../parser_macros.h"
// the name of the language
const char *MAKE_LANG = LANG_MAKE;
// the languages entities
const char *make_entities[] = {
"space", "comment", "string", "any",
};
// constants associated with the entities
enum {
MAKE_SPACE = 0, MAKE_COMMENT, MAKE_STRING, MAKE_ANY
};
/*****************************************************************************/
%%{
machine makefile;
write data;
include common "common.rl";
# Line counting machine
action make_ccallback {
switch(entity) {
case MAKE_SPACE:
ls
break;
case MAKE_ANY:
code
break;
case INTERNAL_NL:
std_internal_newline(MAKE_LANG)
break;
case NEWLINE:
std_newline(MAKE_LANG)
}
}
make_comment = '#' @comment nonnewline*;
make_sq_str = '\'' @code ([^\r\n\f'\\] | '\\' nonnewline)* '\'';
make_dq_str = '"' @code ([^\r\n\f"\\] | '\\' nonnewline)* '"';
make_string = make_sq_str | make_dq_str;
make_line := |*
spaces ${ entity = MAKE_SPACE; } => make_ccallback;
make_comment;
make_string;
newline ${ entity = NEWLINE; } => make_ccallback;
^space ${ entity = MAKE_ANY; } => make_ccallback;
*|;
# Entity machine
action make_ecallback {
callback(MAKE_LANG, make_entities[entity], cint(ts), cint(te), userdata);
}
make_comment_entity = '#' nonnewline*;
make_entity := |*
space+ ${ entity = MAKE_SPACE; } => make_ecallback;
make_comment_entity ${ entity = MAKE_COMMENT; } => make_ecallback;
# TODO:
^space;
*|;
}%%
/************************* Required for every parser *************************/
/* Parses a string buffer with Makefile 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_makefile(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) ? makefile_en_make_line : makefile_en_make_entity;
%% write exec;
// if no newline at EOF; callback contents of last line
if (count) { process_last_line(MAKE_LANG) }
}
#endif
/*****************************************************************************/