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shape_table: re-write so it can parse multiple commands per line

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makes it easier to work out shape tables in a text editor
This commit is contained in:
Vince Weaver 2017-01-06 08:16:32 -05:00
parent dd6082f4b0
commit 6b2afb05a2
1 changed files with 86 additions and 39 deletions
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125
hgr-utils/shape_table.c
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@ -9,6 +9,8 @@
#define MAX_SIZE 8192 /* not really, but anything larger would be crazy */
static int debug=0,line=1;
static unsigned char table[MAX_SIZE];
static void set_offset(int current_shape,int current_offset) {
@ -47,14 +49,54 @@ static void print_usage(char *exe) {
exit(1);
}
static int get_token(char *token, FILE *fff) {
int ch;
int ptr=0;
/* skip leading spaces/comments */
while(1) {
ch=fgetc(fff);
if (ch<0) return -1;
if (ch=='#') {
while(ch!='\n') ch=fgetc(fff);
}
if ((ch==' ') || (ch=='\t') || (ch=='\n')) {
if (ch=='\n') line++;
continue;
}
break;
}
while(1) {
token[ptr]=ch;
ptr++;
ch=fgetc(fff);
if (ch<0) return -1;
if ((ch==' ') || (ch=='\t') || (ch=='\n')) {
if (ch=='\n') line++;
break;
}
}
token[ptr]=0;
return 0;
}
int main(int argc, char **argv) {
char string[BUFSIZ];
char *result;
int result;
int table_size=0;
int num_shapes=0;
int current_offset=0,current_shape=0;
int i,line=1;
int i;
int command=0,sub_pointer;
@ -84,20 +126,18 @@ int main(int argc, char **argv) {
}
}
while(1) {
result=fgets(string,BUFSIZ,stdin);
if (result==NULL) break;
line++;
/* skip comments and blank lines */
if ((string[0]=='#') || (string[0]=='\n')) continue;
sscanf(string,"%d",&num_shapes);
break;
result=get_token(string,stdin);
if (result<0) {
fprintf(stderr,"Error getting number\n");
return -1;
}
//fprintf(stderr,"Num shapes: %d\n",num_shapes);
num_shapes=atoi(string);
if (num_shapes<1) {
fprintf(stderr,"Error getting numshapes\n");
return -2;
}
if (debug) fprintf(stderr,"Number of shapes = %d\n",num_shapes);
table[0]=num_shapes;
table[1]=0;
@ -112,41 +152,47 @@ int main(int argc, char **argv) {
/* Find START */
while(1) {
result=fgets(string,BUFSIZ,stdin);
if (result==NULL) break;
line++;
/* skip comments and blank lines */
if ((string[0]=='#') || (string[0]=='\n')) continue;
if (strstr(string,"START")) break;
result=get_token(string,stdin);
if (result<0) {
fprintf(stderr,"Unexpected EOF!\n");
return -1;
}
if (!strcmp(string,"START")) {
if (debug) fprintf(stderr,"START\n");
break;
}
}
/* READ DATA */
sub_pointer=LOC_A;
while(1) {
result=fgets(string,BUFSIZ,stdin);
if (result==NULL) break;
line++;
result=get_token(string,stdin);
if (result<0) {
fprintf(stderr,"Unexpected end of file!\n");
return -2;
}
/* skip comments and blank lines */
if ((string[0]=='#') || (string[0]=='\n')) continue;
if (strstr(string,"STOP")) break;
if (!strcmp(string,"STOP")) {
if (debug) fprintf(stderr,"STOP\n");
break;
}
/* yes, this is inefficient... */
if (strstr(string,"NUP")) command=0;
else if (strstr(string,"NRT")) command=1;
else if (strstr(string,"NDN")) command=2;
else if (strstr(string,"NLT")) command=3;
else if (strstr(string,"UP")) command=4;
else if (strstr(string,"RT")) command=5;
else if (strstr(string,"DN")) command=6;
else if (strstr(string,"LT")) command=7;
else fprintf(stderr,"Unknown command %s",string);
if (!strcmp(string,"NUP")) command=0;
else if (!strcmp(string,"NRT")) command=1;
else if (!strcmp(string,"NDN")) command=2;
else if (!strcmp(string,"NLT")) command=3;
else if (!strcmp(string,"UP")) command=4;
else if (!strcmp(string,"RT")) {
if (debug) fprintf(stderr,"RT\n");
command=5;
}
else if (!strcmp(string,"DN")) command=6;
else if (!strcmp(string,"LT")) command=7;
else fprintf(stderr,"Unknown command '%s'",string);
if (sub_pointer==LOC_A) {
table[current_offset]=(command&0x7);
@ -226,6 +272,7 @@ int main(int argc, char **argv) {
if ((i%10==9)||(i==current_offset-1)) printf("\n");
else printf(",");
}
}
return 0;