// scilab.rl written by Sylvestre Ledru based on matlab Mitchell Foral. mitchell<att>caladbolg<dott>net.
/************************* Required for every parser *************************/
#ifndef RAGEL_SCILAB_PARSER
#define RAGEL_SCILAB_PARSER
#include "../parser_macros.h"
// the name of the language
const char *SCILAB_LANG = "scilab";
// the languages entities
const char *scilab_entities[] = {
"space", "comment", "string", "any",
};
// constants associated with the entities
enum {
SCILAB_SPACE = 0, SCILAB_COMMENT, SCILAB_STRING, SCILAB_ANY
};
/*****************************************************************************/
%%{
machine scilab;
write data;
include common "common.rl";
# Line counting machine
action scilab_ccallback {
switch(entity) {
case SCILAB_SPACE:
ls
break;
case SCILAB_ANY:
code
break;
case INTERNAL_NL:
std_internal_newline(SCILAB_LANG)
break;
case NEWLINE:
std_newline(SCILAB_LANG)
}
}
scilab_comment = ('//') @comment nonnewline*;
# The detector is not smart enough to detect GNU Octave's double
# quotes around strings, so accept it here.
scilab_sq_str = '\'' @code ([^\r\n\f'\\] | '\\' nonnewline)* '\'';
scilab_dq_str = '"' @code ([^\r\n\f"\\] | '\\' nonnewline)* '"';
scilab_string = scilab_sq_str | scilab_dq_str;
scilab_line := |*
spaces ${ entity = SCILAB_SPACE; } => scilab_ccallback;
scilab_comment;
scilab_string;
newline ${ entity = NEWLINE; } => scilab_ccallback;
^space ${ entity = SCILAB_ANY; } => scilab_ccallback;
*|;
# Entity machine
action scilab_ecallback {
callback(SCILAB_LANG, scilab_entities[entity], cint(ts), cint(te),
userdata);
}
scilab_comment_entity = ('//') @comment nonnewline*;
scilab_entity := |*
space+ ${ entity = SCILAB_SPACE; } => scilab_ecallback;
scilab_comment_entity ${ entity = SCILAB_COMMENT; } => scilab_ecallback;
# TODO:
^space;
*|;
}%%
/************************* Required for every parser *************************/
/* Parses a string buffer with SCILAB 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_scilab(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) ? scilab_en_scilab_line : scilab_en_scilab_entity;
%% write exec;
// if no newline at EOF; callback contents of last line
if (count) { process_last_line(SCILAB_LANG) }
}
#endif
/*****************************************************************************/