add template validation tool, check_tmpl

1 files changed, 69 insertions, 0 deletions

diff --git a/src/check_tmpl.c b/src/check_tmpl.c
new file mode 100644
index 0000000..8be1a7f
--- /dev/null
+++ b/src/check_tmpl.c
@@ -0,0 +1,69 @@
+#include <stdlib.h>
+#include <stdio.h>
+
+#include "cli_val.h"
+
+int
+check_line_continuation(FILE *ftmpl)
+{
+  char buf[256];
+  int line = 0;
+  while (fgets(buf, 256, ftmpl) != NULL) {
+    int len = strlen(buf);
+    ++line;
+    if (len < 2 || buf[len - 1] != '\n' || !isblank(buf[len - 2])) {
+      continue;
+    }
+    len -= 3;
+    while (len >= 0 && isblank(buf[len])) {
+      --len;
+    }
+    if (len >= 0 && buf[len] == '\\') {
+      printf("Warning: \"backslash + space\" detected at the end of line %d.\n"
+             "         This will not work as line continuation.\n",
+             line);
+      continue;
+    }
+  }
+  return 0;
+}
+
+int
+main(int argc, char **argv)
+{
+  int status = 0;
+  vtw_def def;
+  FILE *ftmpl = NULL;
+  
+  if (argc != 2) {
+    printf("Usage: check_tmpl <tmpl_file>\n");
+    exit(-1);
+  }
+
+  memset(&def, 0, sizeof(def));
+  status = parse_def(&def, argv[1], 0);
+  if (status == -5) {
+    printf("Cannot open [%s]\n", argv[1]);
+    exit(-1);
+  } else if (status != 0) {
+    printf("Parse error in [%s]\n", argv[1]);
+    exit(-1);
+  }
+
+  if ((ftmpl = fopen(argv[1], "r")) == NULL) {
+    printf("Cannot open [%s]\n", argv[1]);
+    exit(-1);
+  }
+ 
+  /* check for other errors */
+  if (check_line_continuation(ftmpl) != 0) {
+    exit(-1);
+  }
+  fseek(ftmpl, 0, SEEK_SET);
+
+  fclose(ftmpl);
+  
+  printf("OK\n");
+  return 0;
+}
+