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libavl, libregexp: put debug functions back

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This commit is contained in:
ftrvxmtrx 2016-11-17 23:07:54 +01:00
parent ed76659c05
commit ee9b0eef89
2 changed files with 95 additions and 0 deletions
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21
sys/src/libavl/avl.c
View file

@ -204,6 +204,17 @@ _deleteavl(Avl **tp, Avl *p, Avl *rx, int(*cmp)(Avl*,Avl*), Avl **del,
return -(ob != 0 && (*tp)->bal == 0);
}
static void
checkparents(Avl *a, Avl *p)
{
if(a == nil)
return;
if(a->p != p)
print("bad parent\n");
checkparents(a->n[0], a);
checkparents(a->n[1], a);
}
struct Avltree
{
Avl *root;
@ -413,3 +424,13 @@ endwalk(Avlwalk *w)
}
free(w);
}
static void
walkavl(Avl *t, void (*f)(Avl*, void*), void *v)
{
if(t == nil)
return;
walkavl(t->n[0], f, v);
f(t, v);
walkavl(t->n[1], f, v);
}

74
sys/src/libregexp/regcomp.c
View file

@ -156,6 +156,17 @@ initplex(Parselex *plex, char *regstr, int lit)
return plex;
}
static int
maxthreads(Renode *tree)
{
tree = tree->left;
if(tree->op == TCAT)
tree = tree->left;
if(tree->op == TBOL)
return 2;
return -1;
}
static Reprog*
regcomp1(char *regstr, int nl, int lit)
{
@ -179,6 +190,7 @@ regcomp1(char *regstr, int nl, int lit)
maxthr = regstrlen;
parsetr = node(&plex, TSUB, e0(&plex), nil);
// prtree(parsetr, 0, 1);
reprog = malloc(sizeof(Reprog) +
sizeof(Reinst) * plex.instrs +
sizeof(Rethread) * maxthr);
@ -503,3 +515,65 @@ buildclass(Parselex *l)
}
return n;
}
static void
prtree(Renode *tree, int d, int f)
{
int i;
if(tree == nil)
return;
if(f)
for(i = 0; i < d; i++)
print("\t");
switch(tree->op) {
case TCAT:
prtree(tree->left, d, 0);
prtree(tree->right, d, 1);
break;
case TOR:
print("TOR\n");
prtree(tree->left, d+1, 1);
for(i = 0; i < d; i++)
print("\t");
print("|\n");
prtree(tree->right, d+1, 1);
break;
case TSTAR:
print("*\n");
prtree(tree->left, d+1, 1);
break;
case TPLUS:
print("+\n");
prtree(tree->left, d+1, 1);
break;
case TQUES:
print("?\n");
prtree(tree->left, d+1, 1);
break;
case TANY:
print(".\n");
prtree(tree->left, d+1, 1);
break;
case TBOL:
print("^\n");
break;
case TEOL:
print("$\n");
break;
case TSUB:
print("TSUB\n");
prtree(tree->left, d+1, 1);
break;
case TRUNE:
print("TRUNE: %C\n", tree->r);
break;
case TNOTNL:
print("TNOTNL: !\\n\n");
break;
case TCLASS:
print("CLASS: %C-%C\n", tree->r, tree->r1);
prtree(tree->left, d, 1);
break;
}
}