From 1e4bf42350a2145081224e4610312bc65566ad5c Mon Sep 17 00:00:00 2001
From: EliteTK <tomasz.kramkowski@gmail.com>
Date: Mon, 24 Feb 2014 21:28:46 +0000
Subject: More cleanup

---
 bfparse.c | 85 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 85 insertions(+)
 create mode 100644 bfparse.c

(limited to 'bfparse.c')

diff --git a/bfparse.c b/bfparse.c
new file mode 100644
index 0000000..2ea57b5
--- /dev/null
+++ b/bfparse.c
@@ -0,0 +1,85 @@
+// WARNING: THIS PROGRAM PRODUCES CODE THAT ALLOWS UNRESTRICTED MEMORY ACCESS.
+// USE AT YOUR OWN RISK!!!!!!!!!!!!
+// This program takes input from stdin and outputs on stdout and stderr (for errors)
+
+#include<stdio.h>
+
+#define rightAngle "++ptr;\n" // right angle bracket
+#define leftAngle "--ptr;\n" // left angle bracket
+#define plus "++*ptr;\n" // plus
+#define minus "--*ptr;\n" // minus
+#define period "putchar(*ptr);\n" // period
+#define comma "*ptr = getchar();\n" // comma
+#define leftSquare "while (*ptr) {\n" // left square bracket
+#define rightSquare "}\n" // right square bracket
+
+#define indent "    "
+
+void autoIndent(int);
+
+int main( int argc, char *argv[] ) {
+    int indentLevel = 1;
+    printf("// Generated with TK's \"fuck\" brainfuck to C parser.\n");
+    printf("#include<stdio.h>\n");
+    printf("#include<stdlib.h>\n");
+    printf("\n");
+    printf("int main() {\n");
+    printf("    char *ptrt;\n");
+    printf("    ptrt = calloc(1000, sizeof(char));\n");
+    printf("    char *ptr;\n");
+    printf("    ptr = ptrt;\n");
+    printf("    // The following is directly parsed\n");
+
+    char c;
+    while ( ( c = getchar() ) != EOF ) {
+        switch (c) {
+            case 62:
+                autoIndent(indentLevel);
+                printf(rightAngle);
+                break;
+            case 60:
+                autoIndent(indentLevel);
+                printf(leftAngle);
+                break;
+            case 43:
+                autoIndent(indentLevel);
+                printf(plus);
+                break;
+            case 45:
+                autoIndent(indentLevel);
+                printf(minus);
+                break;
+            case 46:
+                autoIndent(indentLevel);
+                printf(period);
+                break;
+            case 44:
+                autoIndent(indentLevel);
+                printf(comma);
+                break;
+            case 91:
+                autoIndent(indentLevel);
+                indentLevel++;
+                printf(leftSquare);
+                break;
+            case 93:
+                indentLevel--;
+                autoIndent(indentLevel);
+                printf(rightSquare);
+                break;
+        }
+    }
+    printf("    // Closing cleanup\n");
+    printf("    free(ptrt);\n");
+    printf("    putchar('\\n');\n");
+    printf("    return 0;\n}\n");
+    if (--indentLevel)
+        fprintf( stderr, "Incorrect number of brackets. - Error parsing file.\n");
+    return 0;
+}
+
+void autoIndent(int levels) {
+    int i;
+    for (i = 0; i < levels; i++)
+        printf(indent);
+}
-- 
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