151 lines
3.8 KiB
Ragel
151 lines
3.8 KiB
Ragel
#include <string.h>
|
|
#include "shortcodes.h"
|
|
|
|
|
|
%%{
|
|
machine shortcode;
|
|
|
|
action mark {
|
|
mark = p;
|
|
}
|
|
|
|
spc = space*;
|
|
sep = space+;
|
|
path = (alnum | '/' )+;
|
|
|
|
name = (alpha+ path?)
|
|
> mark
|
|
%{ sc_list[c_sc].name.start = mark-start;
|
|
sc_list[c_sc].name.len = p-mark;
|
|
sc_list[c_sc].matching = 0;
|
|
};
|
|
argname = alpha+
|
|
> mark
|
|
% {
|
|
sc_list[c_sc].argnames[sc_list[c_sc].argcount].start = mark-start;
|
|
sc_list[c_sc].argnames[sc_list[c_sc].argcount].len = p-mark;
|
|
};
|
|
qvalue = ('"' [^"]* '"')
|
|
> mark
|
|
% {
|
|
sc_list[c_sc].argvals[sc_list[c_sc].argcount].start = mark-start+1;
|
|
sc_list[c_sc].argvals[sc_list[c_sc].argcount].len = p-mark-2;
|
|
sc_list[c_sc].argcount++;
|
|
};
|
|
|
|
value = alnum+
|
|
> mark
|
|
% {
|
|
sc_list[c_sc].argvals[sc_list[c_sc].argcount].start = mark-start;
|
|
sc_list[c_sc].argvals[sc_list[c_sc].argcount].len = p-mark;
|
|
sc_list[c_sc].argcount++;
|
|
};
|
|
|
|
arg = ((argname '=')? (value|qvalue));
|
|
|
|
start_p = '{{%';
|
|
end_p = '%}}';
|
|
|
|
start_b = '{{<';
|
|
end_b = '>}}';
|
|
|
|
start = start_p | start_b ;
|
|
end = end_p | end_b ;
|
|
|
|
shortcode = (start spc name (sep arg)* spc end)
|
|
> {
|
|
sc_list[c_sc].whole.start = p-start-1;
|
|
}
|
|
@ {
|
|
sc_list[c_sc].whole.len = p-start-sc_list[c_sc].whole.start+1;
|
|
data_mark = p+1;
|
|
c_sc++;
|
|
};
|
|
|
|
closing_shortcode = (start spc '/' name spc end)
|
|
> {
|
|
// Starting a shortcode, close data (if previous shortcode is opening)
|
|
// If it's closing, then previous text can't be data.
|
|
if (sc_list[c_sc-1].matching == 0) {
|
|
sc_list[c_sc-1].data.start = data_mark-start;
|
|
sc_list[c_sc-1].data.len = p-data_mark-1;
|
|
}
|
|
};
|
|
|
|
matched_shortcode = (shortcode any* closing_shortcode)
|
|
@ {
|
|
sc_list[c_sc-1].matching = 1;
|
|
sc_list[c_sc-1].whole.len = p-start-sc_list[c_sc-1].whole.start + 1;
|
|
if (
|
|
sc_list[c_sc-1].name.len != sc_list[c_sc].name.len ||
|
|
strncmp(
|
|
start + sc_list[c_sc-1].name.start,
|
|
start + sc_list[c_sc].name.start,
|
|
sc_list[c_sc-1].name.len) !=0)
|
|
{
|
|
// printf("Mismatched tags!\n");
|
|
// str_copyb(&sc,start + sc_list[c_sc-1].name.start, sc_list[c_sc-1].name.len);
|
|
// printf("opened: %s\n", sc.s);
|
|
// str_copyb(&sc,start + sc_list[c_sc].name.start, sc_list[c_sc].name.len);
|
|
// printf("closed: %s\n", sc.s);
|
|
return NULL;
|
|
}
|
|
// Reuse this shortcode entry for next one
|
|
sc_list[c_sc].name.start = 0;
|
|
sc_list[c_sc].name.len=0;
|
|
};
|
|
|
|
main := (any* (shortcode | matched_shortcode))*;
|
|
}%%
|
|
|
|
|
|
shortcode *parse(char *input) {
|
|
|
|
%%write data;
|
|
char *eof, *ts, *te = 0;
|
|
int cs, act = 0;
|
|
|
|
char *start = input;
|
|
char *p = input;
|
|
char *pe = p + strlen(input);
|
|
|
|
shortcode sc_list[1000];
|
|
int c_sc = 0;
|
|
|
|
int sc_start = 0;
|
|
int sc_end = 0;
|
|
|
|
char *mark = p;
|
|
char *data_mark = p;
|
|
|
|
%% write init;
|
|
%% write exec;
|
|
|
|
// for (int i=0; sc_list[i].name.start!=0; i++) {
|
|
// str_copyb(&sc, start + sc_list[i].name.start, sc_list[i].name.len);
|
|
// printf("sc_name: %s (%d)\n", sc.s, sc_list[i].matching );
|
|
// str_copyb(&sc, start + sc_list[i].start, sc_list[i].len);
|
|
// printf("full_sc: %s\n", sc.s);
|
|
// if (sc_list[i].matching) {
|
|
// str_copyb(&sc, start + sc_list[i].data.start, sc_list[i].data.len);
|
|
// printf("sc_data: %s\n", sc.s);
|
|
// }
|
|
|
|
// for (int j=0; j< sc_list[i].argcount; j++) {
|
|
// str_copyb(&sc, start + sc_list[i].argnames[j].start, sc_list[i].argnames[j].len);
|
|
// printf("argname %d: %s\n", j, sc.s);
|
|
// str_copyb(&sc, start + sc_list[i].argvals[j].start, sc_list[i].argvals[j].len);
|
|
// printf("argval %d: %s\n", j, sc.s);
|
|
// }
|
|
// }
|
|
// TODO: handle errors
|
|
return sc_list;
|
|
}
|
|
|
|
// int main(int argc, char **argv) {
|
|
// parse(
|
|
// "bbb{{% sarasa sar1 sar2 \"sar3\" %}}ccc"
|
|
// "{{< c1 arg2 >}}foobar{{% /c1%}}aaa{{% sarasa name=\"pepe\" %}}");
|
|
// return 0;
|
|
// };
|