1.1 --- a/actions.c	Thu Feb 07 14:46:27 2008 +0100
     1.2 +++ b/actions.c	Thu Feb 07 16:15:07 2008 +0100
     1.3 @@ -5,19 +5,27 @@
     1.4  #include "actions.h"
     1.5  
     1.6  
     1.7 -char action(struct Node* node) {
     1.8 +unsigned char action(struct Node* node) {
     1.9  	if (strcmp(node->name, "print") == 0) {
    1.10  		logit("print-node");
    1.11  		return action_print(node);
    1.12 +
    1.13  	} else if (strcmp(node->name, "sum") == 0) {
    1.14  		logit("sum-node");
    1.15  		return action_sum(node);
    1.16 +
    1.17  	} else if (strcmp(node->name, "printchar") == 0) {
    1.18  		logit("printchar-node");
    1.19  		return action_printchar(node);
    1.20 +
    1.21  	} else if (strcmp(node->name, "number") == 0) {
    1.22  		logit("number-node");
    1.23  		return action_number(node);
    1.24 +
    1.25 +	} else if (strcmp(node->name, "input") == 0) {
    1.26 +		logit("input-node");
    1.27 +		return action_input(node);
    1.28 +
    1.29  	} else {
    1.30  		fprintf(stderr, "unknown kind of node");
    1.31  		exit(1);
    1.32 @@ -26,19 +34,19 @@
    1.33  
    1.34  
    1.35  
    1.36 -char action_print(struct Node* node) {
    1.37 +unsigned char action_print(struct Node* node) {
    1.38  	printf("%d\n", action(node->down));
    1.39  	return 0;
    1.40  }
    1.41  
    1.42  
    1.43 -char action_printchar(struct Node* node) {
    1.44 +unsigned char action_printchar(struct Node* node) {
    1.45  	printf("%c\n", action(node->down));
    1.46  	return 0;
    1.47  }
    1.48  
    1.49  
    1.50 -char action_sum(struct Node* node) {
    1.51 +unsigned char action_sum(struct Node* node) {
    1.52  	struct Node* tp;
    1.53  	tp = node->down;
    1.54  	while (tp != NULL) {
    1.55 @@ -49,7 +57,16 @@
    1.56  }
    1.57  
    1.58  
    1.59 -char action_number(struct Node* node) {
    1.60 +unsigned char action_number(struct Node* node) {
    1.61  	return node->value;
    1.62  }
    1.63  
    1.64 +
    1.65 +unsigned char action_input(struct Node* node) {
    1.66 +	unsigned char input = (unsigned char) getchar();
    1.67 +	getchar();  /* catches the newline */
    1.68 +	insertLast(node, newNode("number", input));
    1.69 +	return 0;
    1.70 +}
    1.71 +
    1.72 +