// fortranfixed.rl written by Mitchell Foral. mitchell<att>caladbolg<dott>net.
/************************* Required for every parser *************************/
#ifndef OHCOUNT_FORTRANFIXED_PARSER_H
#define OHCOUNT_FORTRANFIXED_PARSER_H
#include "../parser_macros.h"
// the name of the language
const char *FORTRANFIXED_LANG = LANG_FORTRANFIXED;
// the languages entities
const char *ffixed_entities[] = {
"space", "comment", "string", "any"
};
// constants associated with the entities
enum {
FFIXED_SPACE = 0, FFIXED_COMMENT, FFIXED_STRING, FFIXED_ANY
};
/*****************************************************************************/
%%{
machine fortranfixed;
write data;
include common "common.rl";
# Line counting machine
action ffixed_ccallback {
switch(entity) {
case FFIXED_SPACE:
ls
break;
case FFIXED_ANY:
code
break;
case INTERNAL_NL:
std_internal_newline(FORTRANFIXED_LANG)
break;
case NEWLINE:
std_newline(FORTRANFIXED_LANG)
}
}
ffixed_comment = 'C' @comment nonnewline*;
ffixed_sq_str = '\'' @code nonnewline* '\'';
ffixed_dq_str = '"' @code nonnewline* '"';
ffixed_string = ffixed_sq_str | ffixed_dq_str;
ffixed_line := |*
spaces ${ entity = FFIXED_SPACE; } => ffixed_ccallback;
ffixed_comment;
ffixed_string;
newline ${ entity = NEWLINE; } => ffixed_ccallback;
^space ${ entity = FFIXED_ANY; } => ffixed_ccallback;
*|;
# Entity machine
action ffixed_ecallback {
callback(FORTRANFIXED_LANG, ffixed_entities[entity], cint(ts), cint(te),
userdata);
}
ffixed_comment_entity = 'C' nonnewline*;
ffixed_entity := |*
space+ ${ entity = FFIXED_SPACE; } => ffixed_ecallback;
ffixed_comment_entity ${ entity = FFIXED_COMMENT; } => ffixed_ecallback;
# TODO:
^space;
*|;
}%%
/* Parses a string buffer with Fortran Fixedform 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_fortranfixed(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) ? fortranfixed_en_ffixed_line : fortranfixed_en_ffixed_entity;
%% write exec;
// if no newline at EOF; callback contents of last line
if (count) { process_last_line(FORTRANFIXED_LANG) }
}
#endif