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Sourceviewer working

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This commit is contained in:
id101010
2016-11-14 22:52:59 +01:00
parent 364ba5d474
commit 687bb60587
1 changed files with 19 additions and 38 deletions
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57
bfckr.c
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@@ -51,6 +51,11 @@ void init_bf_object(bf_code_t *bf)
}
}
bool is_brainfuck(char c)
{
return (c=='+') || (c=='-') || (c=='>') || (c=='<') || (c=='.') || (c==',') || (c=='[') || (c==']');
}
/* Error handler */
void die(const char *message)
{
@@ -66,46 +71,20 @@ void die(const char *message)
/* Prints the bf source at the current location */
void print_sourceviewer(bf_code_t *bf)
{
int ip = (int)bf->ip; // save instruction pointer
printf("\nSource viewer:\n");
printf("-------------------------------------------------------------\n"); // 62 dashes
printf("------------------------------------------------------------\n"); // 61 dashes
if(bf->ip <= 30) { // if there aren't enough instruction characters to print
for(int i = bf->ip; i >= 0; i--) { // print as much instructions as possible
printf("%c", bf->code[i]);
}
for(int i = 30-(bf->ip); i >= 0; i--) { // then fill with whitespaces
printf(" ");
}
// Print 30 valid chars before $ip and 30 after
for(int i=(ip-30); i<(ip+30); i++) {
putchar((i<0 || i>MAX_INPUT_SIZE) ? ' ' : bf->code[i]);
}
if(bf->ip > 30) { // if there are enough instruction characters
for(int i = 30; i >= 0; i--) { // print 30 instruction chars before ip
printf("%c", bf->code[i]);
}
}
// print 30 instructions begining at ip
for(size_t i = bf->ip; i < bf->ip + 29; i++) {
if(bf->code[i] == '\n') {
printf(" ");
} else if(bf->code[i] == NULL) {
printf(" ");
} else {
printf("%c", bf->code[i]);
}
}
printf("\n");
printf(" ^ \n");
printf(" ip=%d \n", bf->ip);
printf("-------------------------------------------------------------\n");
/*printf("\nSource viewer: \n"
"-----------------------------------------------------------\n"
"_____________________________>+++++++++++++++[<+>>>>>>>>+++\n"
" ^ \n"
" ip=0 \n"
"-----------------------------------------------------------\n"); // just to get the idea ...
*/
printf(" ^ \n");
printf(" ip=%d \n", ip);
printf("------------------------------------------------------------\n");
}
/* Prints memory information at the current memory location */
@@ -127,7 +106,7 @@ void print_memoryviewer(bf_code_t *bf)
/* Pauses the program flow and prints information */
void bfuck_debugger(bf_code_t *bf) //char *bf_source_input, int instructionpointer)
{
//clear(); // clear terminal
clear(); // clear terminal
printf("[s]: single step [c]: continue\n");
@@ -151,6 +130,7 @@ void bfuck_execute(bf_code_t *bf)
int loop = 0;
for(size_t i = bf->ip; bf->code[i] != 0; bf->ip=i++) { // where i is the instruction pointer
bfuck_debugger(bf);
switch(bf->code[i]) {
case '>':
if(bf->mp >= MEMORY_SIZE) { // prevent overrun
@@ -256,13 +236,14 @@ int main(int argc, char* argv[])
// read the file and store it in the input buffer
while((c = getc(fp)) != EOF) {
bf.code[i++] = c;
if(is_brainfuck(c)) {
bf.code[i++] = c;
}
}
// close file after reading
fclose(fp);
bfuck_debugger(&bf);
// try to interpret it
bfuck_execute(&bf);