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PSYC_inherits()

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This commit is contained in:
psyc://psyced.org/~lynX 2011-04-20 23:08:20 +02:00
parent e229ea79f4
commit ca844efdb4
3 changed files with 52 additions and 3 deletions
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6
include/psyc.h
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@ -65,6 +65,12 @@ PSYC_Type PSYC_getVarType(char* name, size_t len);
PSYC_Bool PSYC_isRoutingVar(char* name, size_t len);
/**
* Checks if long keyword string inherits from short keyword string.
*/
int PSYC_inherits(char* sho, size_t slen,
char* lon, size_t llen);
/**
* Checks if short keyword string matches long keyword string.
*/

42
src/match.c
View file

@ -1,6 +1,40 @@
#include "psyc/lib.h"
/* TODO: PSYC_inherits() */
int PSYC_inherits(char* sho, size_t slen,
char* lon, size_t llen) {
if (!slen) slen = strlen(sho);
if (!llen) llen = strlen(lon);
if (slen == 0 || *sho != '_' ||
llen == 0 || *lon != '_') {
P1(("Please use long format keywords (compact ones would be faster, I know..)\n"))
return -2;
}
if (slen > llen) {
P1(("The long string is shorter than the short one.\n"))
return -3;
}
if (!strncmp(sho, lon, slen)) {
/* according to PSYC spec we have hereby already proved
* inheritance. the following check is optional!
*/
if (llen > slen && lon[slen] != '_') {
/* It is illegal to introduce a keyword family
* that starts just like an existing one. Since
* _failure exists, you can't use _fail. But
* implementations are not required to recognize
* that.
*/
P1(("Illegal choice of keyword names!\n"))
return -4;
}
return 0;
}
P4(("%*s does not inherit from %*s.\n", llen, lon, slen, sho))
return 1;
}
int PSYC_matches(char* sho, size_t slen,
char* lon, size_t llen) {
@ -66,7 +100,9 @@ int main(int argc, char **argv) {
printf("Usage: %s <short> <long>\n\nExample: %s _failure_delivery _failure_unsuccessful_delivery_death\n", argv[0], argv[0]);
return -1;
}
if (PSYC_matches((uint8_t*) argv[1], 0, (uint8_t*) argv[2], 0) == 0)
printf("Yes, they match!\n");
if (PSYC_matches(argv[1], 0, argv[2], 0) == 0)
printf("Yes, %s matches %s!\n", argv[1], argv[2]);
if (PSYC_inherits(argv[1], 0, argv[2], 0) == 0)
printf("Yes, %s inherits from %s!\n", argv[2], argv[1]);
}
#endif

7
tests/testMatch.c
View file

@ -9,5 +9,12 @@ int main() {
unless (PSYC_matches("_truthahn", 0, "_failure_unsuccessful_delivery_death", 0)) return -5;
puts("PSYC_matches passed all tests.");
unless (PSYC_inherits("_failure_delivery", 0, "_failure_unsuccessful_delivery_death", 0)) return -11;
if (PSYC_inherits("_failure_unsuccessful", 0, "_failure_unsuccessful_delivery_death", 0)) return -12;
unless (PSYC_inherits("_fail", 0, "_failure_unsuccessful_delivery_death", 0)) return -13;
puts("PSYC_inherits passed all tests.");
return 0; // passed all tests
}