// nsis.rl written by Chris Morgan.
/************************* Required for every parser *************************/
#ifndef OHCOUNT_NSIS_PARSER_H
#define OHCOUNT_NSIS_PARSER_H
#include "../parser_macros.h"
// the name of the language
const char *NSIS_LANG = LANG_NSIS;
// the languages entities
const char *nsis_entities[] = {
"space", "comment", "string", "any"
};
// constants associated with the entities
enum {
NSIS_SPACE = 0, NSIS_COMMENT, NSIS_STRING, NSIS_ANY
};
/*****************************************************************************/
%%{
machine nsis;
write data;
include common "common.rl";
# Line counting machine
action nsis_ccallback {
switch(entity) {
case NSIS_SPACE:
ls
break;
case NSIS_ANY:
code
break;
case INTERNAL_NL:
std_internal_newline(NSIS_LANG)
break;
case NEWLINE:
std_newline(NSIS_LANG)
}
}
nsis_line_comment = ('#' | ';') @comment nonnewline*;
nsis_block_comment =
'/*' @comment (
newline %{ entity = INTERNAL_NL; } %nsis_ccallback
|
ws
|
(nonnewline - ws) @comment
)* :>> '*/';
nsis_comment = nsis_line_comment | nsis_block_comment;
nsis_bt_str = '`' @code ([^\r\n\f`\\] | '\\' nonnewline)* '`';
nsis_sq_str = '\'' @code ([^\r\n\f'\\] | '\\' nonnewline)* '\'';
nsis_dq_str = '"' @code ([^\r\n\f"\\] | '\\' nonnewline)* '"';
nsis_string = nsis_bt_str | nsis_sq_str | nsis_dq_str;
nsis_line := |*
spaces ${ entity = NSIS_SPACE; } => nsis_ccallback;
nsis_comment;
nsis_string;
newline ${ entity = NEWLINE; } => nsis_ccallback;
^space ${ entity = NSIS_ANY; } => nsis_ccallback;
*|;
# Entity machine
action nsis_ecallback {
callback(NSIS_LANG, nsis_entities[entity], cint(ts), cint(te), userdata);
}
nsis_line_comment_entity = ('#' | '//') nonnewline*;
nsis_block_comment_entity = '/*' any* :>> '*/';
nsis_comment_entity = nsis_line_comment_entity | nsis_block_comment_entity;
nsis_entity := |*
space+ ${ entity = NSIS_SPACE; } => nsis_ecallback;
nsis_comment_entity ${ entity = NSIS_COMMENT; } => nsis_ecallback;
# TODO:
^space;
*|;
}%%
/************************* Required for every parser *************************/
/* Parses a string buffer with NSIS 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_nsis(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) ? nsis_en_nsis_line : nsis_en_nsis_entity;
%% write exec;
// if no newline at EOF; callback contents of last line
if (count) { process_last_line(NSIS_LANG) }
}
#endif
/*****************************************************************************/