code: plan9front

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ktrans: don't leak on conflicting jisho lines

Tidy up the hash interface to make cleanup
a bit more explicit vs non cleanup.

--- a/sys/src/cmd/ktrans/hash.c

+++ b/sys/src/cmd/ktrans/hash.c

@@ -47,7 +47,7 @@

 }

 int

-hmapset(Hmap **store, char *key, void *new, void *old)

+hmaprepl(Hmap **store, char *key, void *new, void *old, int freekeys)

 {

 	Hnode *n;

 	uchar *v;

@@ -66,6 +66,8 @@

 		if(n->filled == 0)

 			goto replace;

 		if(strcmp(n->key, key) == 0){

+			if(freekeys)

+				free(n->key);

 			oldv = v + Tagsize;

 			goto replace;

 		}

@@ -105,6 +107,18 @@

 	return 0;

 }

+int

+hmapupd(Hmap **h, char *key, void *new)

+{

+	char *prev;

+

+	prev = hmapkey(*h, key);

+	if(prev == nil)

+		prev = key;

+

+	return hmaprepl(h, prev, new, nil, 0);

+}

+

 void*

 _hmapget(Hmap *h, char *key)

 {

@@ -184,7 +198,7 @@

 	for(i=0 ; i < old->len; i++){

 		v = old->nodes + i*old->nsz;

 		n = (Hnode*)v;

-		hmapset(&new, n->key, v + Tagsize, nil);

+		hmaprepl(&new, n->key, v + Tagsize, nil, 0);

 	}

 	free(old);

 	return new;

--- a/sys/src/cmd/ktrans/hash.h

+++ b/sys/src/cmd/ktrans/hash.h

@@ -16,8 +16,8 @@

 Hmap*	hmapalloc(int nbuckets, int size);

 int	hmapget(Hmap *h, char *key, void *dst);

-int	hmapset(Hmap **h, char *key, void *new, void *old);

+int	hmaprepl(Hmap **h, char *key, void *new, void *old, int freekeys);

+int	hmapupd(Hmap **h, char *key, void *new);

 int	hmapdel(Hmap *h, char *key, void *dst, int freekey);

-void	hmapfree(Hmap *h, int freekeys);

 char*	hmapkey(Hmap *h, char *key);

 void	hmapreset(Hmap *h, int freekeys);

--- a/sys/src/cmd/ktrans/main.c

+++ b/sys/src/cmd/ktrans/main.c

@@ -122,14 +122,13 @@

 					//confict; partial & valid input

 					prev = m[i];

 					prev.leadstomore = 1;

-					free(hmapkey(h, buf));

 				}

 			}

 			if(s[1] == '\0'){

-				hmapset(&h, strdup(buf), &prev, nil);

+				hmaprepl(&h, strdup(buf), &prev, nil, 1);

 			} else {

-				hmapset(&h, strdup(buf), &signalmore, nil);

+				hmaprepl(&h, strdup(buf), &signalmore, nil, 1);

 			}

 			j++;

 		}

@@ -425,7 +424,7 @@

 			kouho[i] = rest;

 		/* key is the base pointer; overwrites clean up for us */

-		hmapset(&h, p, kouho, nil);

+		hmaprepl(&h, p, kouho, nil, 1);

 	}

 	Bterm(b);

 	return h;

@@ -537,7 +536,7 @@

 				p = kouho[0];

 				kouho[0] = kouho[i];

 				kouho[i] = p;

-				hmapset(&dic, hmapkey(dic, v), kouho, nil);

+				hmapupd(&dic, v, kouho);

 			}

 			olen = okuri = joshi = 0;