Imported Upstream version 6.0.0.172

Former-commit-id: f3cc9b82f3e5bd8f0fd3ebc098f789556b44e9cd

external/llvm/tools/llvm-c-test/helpers.c

@@ -0,0 +1,39 @@
+/*===-- helpers.c - tool for testing libLLVM and llvm-c API ---------------===*\
+|*                                                                            *|
+|*                     The LLVM Compiler Infrastructure                       *|
+|*                                                                            *|
+|* This file is distributed under the University of Illinois Open Source      *|
+|* License. See LICENSE.TXT for details.                                      *|
+|*                                                                            *|
+|*===----------------------------------------------------------------------===*|
+|*                                                                            *|
+|* Helper functions                                                           *|
+|*                                                                            *|
+\*===----------------------------------------------------------------------===*/
+
+#include <stdio.h>
+#include <string.h>
+
+#define MAX_TOKENS 512
+#define MAX_LINE_LEN 1024
+
+void llvm_tokenize_stdin(void (*cb)(char **tokens, int ntokens)) {
+  char line[MAX_LINE_LEN];
+  char *tokbuf[MAX_TOKENS];
+
+  while (fgets(line, sizeof(line), stdin)) {
+    int c = 0;
+
+    if (line[0] == ';' || line[0] == '\n')
+      continue;
+
+    while (c < MAX_TOKENS) {
+      tokbuf[c] = strtok(c ? NULL : line, " \n");
+      if (!tokbuf[c])
+        break;
+      c++;
+    }
+    if (c)
+      cb(tokbuf, c);
+  }
+}