From e9a5dbfb21e1c625bed5683b9170d1a76ba75a56 Mon Sep 17 00:00:00 2001
From: Francois Fleuret <francois@fleuret.org>
Date: Mon, 13 Apr 2009 14:59:44 +0200
Subject: [PATCH] Added the ^I keystroke to switch the case-sensitivity.

---
 REVISION_NUMBER |  2 +-
 selector.1      |  3 ++-
 selector.cc     | 41 +++++++++++++++++++++++++++++++++++------
 3 files changed, 38 insertions(+), 8 deletions(-)

diff --git a/REVISION_NUMBER b/REVISION_NUMBER
index dee261d..b4f334f 100644
--- a/REVISION_NUMBER
+++ b/REVISION_NUMBER
@@ -1 +1 @@
-140
+141
diff --git a/selector.1 b/selector.1
index 10cf637..c349ace 100644
--- a/selector.1
+++ b/selector.1
@@ -12,7 +12,8 @@ in real time to show only the lines containing all the said strings,
 or matching the regexp.
 
 The ^R key switches between the standard multi-substring mode and the
-regexp mode.
+regexp mode, and ^I between the case-sensitive and case-insensitive
+modes.
 
 The main usage of selector is as an efficient search in the shell
 command history. With the correct option, it will inject the selected
diff --git a/selector.cc b/selector.cc
index ccc6158..46ff098 100644
--- a/selector.cc
+++ b/selector.cc
@@ -84,6 +84,26 @@ void check_opt(int argc, char **argv, int n_opt, int n, const char *help) {
   }
 }
 
+int string_to_positive_integer(char *string) {
+  int error = 0;
+  int result = 0;
+
+  if(*string) {
+    for(char *s = string; *s; s++) {
+      if(*s >= '0' && *s <= '9') {
+        result = result * 10 + int(*s - '0');
+      } else error = 1;
+    }
+  } else error = 1;
+
+  if(error) {
+    cerr << "Value `" << string << "' is not a positive integer." << endl;
+    exit(1);
+  }
+
+  return result;
+}
+
 //////////////////////////////////////////////////////////////////////
 // A quick and dirty hash table
 
@@ -483,6 +503,10 @@ void update_screen(int *current_line, int *temporary_line, int motion,
     addstr(" [regexp]");
   }
 
+  if(case_sensitive) {
+    addstr(" [case]");
+  }
+
   move(0, cursor_x);
 
   if(with_colors) {
@@ -667,16 +691,16 @@ int main(int argc, char **argv) {
 
     else if(strcmp(argv[i], "-l") == 0) {
       check_opt(argc, argv, i, 1, "<maximum number of lines>");
-      nb_lines_max = atoi(argv[i+1]);
+      nb_lines_max = string_to_positive_integer(argv[i+1]);
       i += 2;
     }
 
     else if(strcmp(argv[i], "-c") == 0) {
       check_opt(argc, argv, i, 4, "<fg modeline> <bg modeline> <fg highlight> <bg highlight>");
-      color_fg_modeline = atoi(argv[i+1]);
-      color_bg_modeline = atoi(argv[i+2]);
-      color_fg_highlight = atoi(argv[i+3]);
-      color_bg_highlight = atoi(argv[i+4]);
+      color_fg_modeline = string_to_positive_integer(argv[i + 1]);
+      color_bg_modeline = string_to_positive_integer(argv[i + 2]);
+      color_fg_highlight = string_to_positive_integer(argv[i + 3]);
+      color_bg_highlight = string_to_positive_integer(argv[i + 4]);
       i += 5;
     }
 
@@ -891,6 +915,10 @@ int main(int argc, char **argv) {
       use_regexp = !use_regexp;
     }
 
+    else if(key == '\011') { // ^R
+      case_sensitive = !case_sensitive;
+    }
+
     else if(key == '\025') { // ^U
       kill_before_cursor(pattern, &cursor_position);
     }
@@ -933,7 +961,8 @@ int main(int argc, char **argv) {
       }
       out.flush();
     }
-
+  } else {
+    cout << "Aborted." << endl;
   }
 
   for(int l = 0; l < nb_lines; l++) {
-- 
2.39.5