diff -r 853a1181884b -r 95a958e3de88 cline.c
--- a/cline.c	Thu Dec 01 17:06:27 2011 +0100
+++ b/cline.c	Thu Jan 26 15:55:52 2012 +0100
@@ -10,17 +10,20 @@
 #include "settings.h"
 #include "arguments.h"
 #include "stream.h"
+#include "regex_parser.h"
 
 void printHelpText() {
   const char* helpText = 
     "\nUsage:"
-    "\n      cline [-hrmvV][-s suffix][-b level][<directory>]"
-    "\n      cline [-hrmvV][-S suffix][-b level][<directory>]"
+    "\n      cline [Options] [Directory]"
+    "\n      cline [Options] [Directory]"
     "\n\nCounts the line terminator characters (\\n) within all"
     " files in the specified\ndirectory."
     "\n\nOptions:"
     "\n  -b <level>          - binary file heuristics level (default medium)"
     "\n                        One of: ignore low medium high"
+    "\n  -e <start> <end>    - Excludes lines between <start> and <end>"
+    "\n                        You may use this option multiple times"
     "\n  -h, --help          - this help text"
     "\n  -m                  - print information about matching files only"
     "\n  -s <suffixes>       - only count files with these suffixes (separated"
@@ -35,7 +38,10 @@
     "\n  cline ./\n"
     "So each file in the working directory is counted. If you want to count C"
     "\nsource code in your working directory and its subdirectories, type:"
-    "\n  cline -rs .c\n";
+    "\n  cline -rs .c\n"
+    "\nIf you want to exclude comment lines, you may use the -e option."
+    "\nAfter a line matches the regex pattern <start> any following line is"
+    "\nnot counted unless a line matches the <end> pattern.";
     
   printf(helpText);
 }
@@ -68,7 +74,7 @@
 
   for (int t = 1 ; t < argc ; t++) {
 
-    int argflags = checkArgument(argv[t], "hsSrRmvVb");
+    int argflags = checkArgument(argv[t], "hsSrRmvVbe");
 
     /* s, S */
     if ((argflags & 6) > 0) {
@@ -132,6 +138,13 @@
         return exit_with_help(settings, 1);
       }
     }
+    if ((argflags & 512) > 0) {
+      if (t + 2 >= argc) {
+        return exit_with_help(settings, 1);
+      }
+      t++; add_string(settings->regex->pattern_list, argv[t]);
+      t++; add_string(settings->regex->pattern_list, argv[t]);
+    }
     /* Path */
     if (argflags == 0) {
       if (registerArgument(&checked, 1024)) {
@@ -154,6 +167,7 @@
   }
 
   /* Scan directory */
+  regex_compile_all(settings->regex);
   int lines = scanDirectory((scanner_t){directory, 0}, settings);
   destroy_settings_t(settings);
 
@@ -163,11 +177,10 @@
   }
   printf("\n%73d lines\n", lines);
 
-  if (settings->confusing_lnlen) {
-    /* TODO: display this only when the regexp parser is used */
+  if (settings->confusing_lnlen && settings->regex->pattern_list->count > 0) {
     printf("\nSome files contain too long lines.\n"
-      "The regexp parser currently supports a maximum line length of 2048."
-      "\nThe result might be wrong.\n");
+      "The regex parser currently supports a maximum line length of %d."
+      "\nThe result might be wrong.\n", REGEX_MAX_LINELENGTH);
   }
 
   if (!settings->verbose) {