1.1 --- a/Makefile	Thu Feb 07 14:31:02 2008 +0100
     1.2 +++ b/Makefile	Thu Feb 07 14:46:27 2008 +0100
     1.3 @@ -2,9 +2,9 @@
     1.4  
     1.5  # program
     1.6  PROGRAM = baum
     1.7 -SRC = baum.c
     1.8 +SRC = baum.c actions.c
     1.9  OBJ = ${SRC:.c=.o}
    1.10 -DEP =
    1.11 +DEP = baum.h actions.h
    1.12  
    1.13  # compile env
    1.14  CC = gcc

     2.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     2.2 +++ b/actions.c	Thu Feb 07 14:46:27 2008 +0100
     2.3 @@ -0,0 +1,55 @@
     2.4 +#include <stdio.h>
     2.5 +#include <stdlib.h>
     2.6 +#include <string.h>
     2.7 +#include "baum.h"
     2.8 +#include "actions.h"
     2.9 +
    2.10 +
    2.11 +char action(struct Node* node) {
    2.12 +	if (strcmp(node->name, "print") == 0) {
    2.13 +		logit("print-node");
    2.14 +		return action_print(node);
    2.15 +	} else if (strcmp(node->name, "sum") == 0) {
    2.16 +		logit("sum-node");
    2.17 +		return action_sum(node);
    2.18 +	} else if (strcmp(node->name, "printchar") == 0) {
    2.19 +		logit("printchar-node");
    2.20 +		return action_printchar(node);
    2.21 +	} else if (strcmp(node->name, "number") == 0) {
    2.22 +		logit("number-node");
    2.23 +		return action_number(node);
    2.24 +	} else {
    2.25 +		fprintf(stderr, "unknown kind of node");
    2.26 +		exit(1);
    2.27 +	}
    2.28 +}
    2.29 +
    2.30 +
    2.31 +
    2.32 +char action_print(struct Node* node) {
    2.33 +	printf("%d\n", action(node->down));
    2.34 +	return 0;
    2.35 +}
    2.36 +
    2.37 +
    2.38 +char action_printchar(struct Node* node) {
    2.39 +	printf("%c\n", action(node->down));
    2.40 +	return 0;
    2.41 +}
    2.42 +
    2.43 +
    2.44 +char action_sum(struct Node* node) {
    2.45 +	struct Node* tp;
    2.46 +	tp = node->down;
    2.47 +	while (tp != NULL) {
    2.48 +		node->value += action(tp);
    2.49 +		tp = tp->right;
    2.50 +	}
    2.51 +	return node->value;
    2.52 +}
    2.53 +
    2.54 +
    2.55 +char action_number(struct Node* node) {
    2.56 +	return node->value;
    2.57 +}
    2.58 +

     3.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     3.2 +++ b/actions.h	Thu Feb 07 14:46:27 2008 +0100
     3.3 @@ -0,0 +1,8 @@
     3.4 +
     3.5 +char action(struct Node* node);
     3.6 +
     3.7 +char action_print(struct Node* node);
     3.8 +char action_printchar(struct Node* node);
     3.9 +char action_sum(struct Node* node);
    3.10 +char action_number(struct Node* node);
    3.11 +

     4.1 --- a/baum.c	Thu Feb 07 14:31:02 2008 +0100
     4.2 +++ b/baum.c	Thu Feb 07 14:46:27 2008 +0100
     4.3 @@ -12,8 +12,8 @@
     4.4  #include <string.h>
     4.5  
     4.6  #include "baum.h"
     4.7 +#include "actions.h"
     4.8  
     4.9 -char action(struct Node* node);
    4.10  
    4.11  struct Node* root;
    4.12  
    4.13 @@ -49,7 +49,7 @@
    4.14  
    4.15  /* print */
    4.16  void printNode(struct Node* node) {
    4.17 -	printf("Node: %20s (%c)\n", node->name, node->value);
    4.18 +	printf("Node: %20s (%d|%c)\n", node->name, node->value, node->value);
    4.19  }
    4.20  
    4.21  void printTree(struct Node* root) {
    4.22 @@ -69,42 +69,6 @@
    4.23  }
    4.24  
    4.25  
    4.26 -char action_print(struct Node* node) {
    4.27 -	printf("%c\n", action(node->down));
    4.28 -	return 0;
    4.29 -}
    4.30 -
    4.31 -char action_sum(struct Node* node) {
    4.32 -	struct Node* tp;
    4.33 -	tp = node->down;
    4.34 -	while (tp != NULL) {
    4.35 -		node->value += action(tp);
    4.36 -		tp = tp->right;
    4.37 -	}
    4.38 -	return node->value;
    4.39 -}
    4.40 -
    4.41 -char action_number(struct Node* node) {
    4.42 -	return node->value;
    4.43 -}
    4.44 -
    4.45 -char action(struct Node* node) {
    4.46 -	if (strcmp(node->name, "print") == 0) {
    4.47 -		logit("print-node");
    4.48 -		return action_print(node);
    4.49 -	} else if (strcmp(node->name, "sum") == 0) {
    4.50 -		logit("sum-node");
    4.51 -		return action_sum(node);
    4.52 -	} else if (strcmp(node->name, "number") == 0) {
    4.53 -		logit("number-node");
    4.54 -		return action_number(node);
    4.55 -	} else {
    4.56 -		fprintf(stderr, "unknown kind of node");
    4.57 -		exit(1);
    4.58 -	}
    4.59 -}
    4.60 -
    4.61 -
    4.62  
    4.63  /* traverse */
    4.64  void traverse(struct Node* root) {
    4.65 @@ -114,7 +78,7 @@
    4.66  
    4.67  /* init */
    4.68  void init() {
    4.69 -	root = newNode("print");
    4.70 +	root = newNode("printchar");
    4.71  	root->down = newNode("number");
    4.72  	root->down = newNode("sum");
    4.73  	root->down->down = newNode("number");

     5.1 --- a/baum.h	Thu Feb 07 14:31:02 2008 +0100
     5.2 +++ b/baum.h	Thu Feb 07 14:46:27 2008 +0100
     5.3 @@ -1,3 +1,8 @@
     5.4 +
     5.5 +void logit(char* text);
     5.6 +
     5.7 +
     5.8 +
     5.9  struct Node {
    5.10  	char* name;
    5.11  	char value;