Standardize highlight offset

 - min/max the col (sometime norminette returns a weird col)
 - add a visual test
 - We don't need to do -1 (norminette do +1 only for col=0 and this behavior is a bug)

linter.py

@@ -34,7 +34,7 @@ class Norminette(Linter):
         (?:(?P<message>.+))
     '''
 
-    line_col_base = (1, 1)
+    line_col_base = (1, 0)
     multiline = True
     error_stream = util.STREAM_BOTH
     defaults = {
@@ -50,18 +50,19 @@ def split_match(self, match):
         return error
 
     def reposition_match(self, line, col, m, vv):
-        col = int(m['col2']) - 1
+        col = int(m['col2'])
         if col > 0:
             content = vv.select_line(line)
             c = 0
             cr = 0
             maxc = col
-            while c < maxc and c < len(content):
+            while cr < maxc and c < len(content):
                 if content[c] == '\t':
                     spaces = (4 - math.ceil(cr % 4))
                     col -= spaces
                     cr += spaces
                 c += 1
                 cr += 1
+        col = max(min(col, len(content) - 1), 0)
 
         return super().reposition_match(line, col, m, vv)

test/test-linter.c

@@ -0,0 +1,42 @@
+// <--- here error on the second `/`
+//23456789012345678901234567890 
+
+//  vvvv------ 1 error
+int main(void)
+{
+	return a;
+	if (test)
+		return a;
+}
+//         ^---^--- 2 errors on `a`
+	static int test(void)
+{
+	return (0);
+}
+//         ^^^^--- 1 on error on `test`
+
+int	n(long	a)
+{
+	double a;
+
+	return (0);
+}
+
+#include "test.h" // <--- here here `include`
+
+int	n(void)
+{
+	return a;					
+	if (test)
+		return a;				
+}
+//         ^---^--- 4 errors: 2 on `a`
+//			 ^^^-^^^--------- 2 after `;`
+
+int	n(void)
+{
+	return (a);	
+	if (test)
+		return (a);	
+}
+//             ^---^--- 2 errors after `;`