From: Francois Fleuret <francois@fleuret.org>
Date: Fri, 13 Mar 2009 10:19:11 +0000 (+0100)
Subject: Added an option to invert the orders of lines.
X-Git-Url: https://fleuret.org/cgi-bin/gitweb/gitweb.cgi?a=commitdiff_plain;h=1aa2ab0e57b73a863712019a4c8153d08e088ce1;p=selector.git

Added an option to invert the orders of lines.
---

diff --git a/selector.1 b/selector.1
index dce6be2..e3452d5 100644
--- a/selector.1
+++ b/selector.1
@@ -34,6 +34,8 @@ display help and exits
 inject the selected line into the tty input buffer
 .IP "\fB-m\fP" 10
 force the monochrome mode
+.IP "\fB-i\fP" 10
+inverse the order of lines so that the recent lines are at the top
 .IP "\fB-z\fP" 10
 remove the time prefix from zsh history
 .IP "\fB-c <fg modeline> <bg modeline> <fg highlight> <bg highlight>\fP" 10
diff --git a/selector.cc b/selector.cc
index 2990c72..f89f6b8 100644
--- a/selector.cc
+++ b/selector.cc
@@ -51,6 +51,7 @@ char pattern_separator = ';';
 int output_to_vt_buffer = 0;
 int with_colors = 1;
 int zsh_history = 0;
+int inverse_order = 0;
 
 //////////////////////////////////////////////////////////////////////
 
@@ -385,6 +386,11 @@ int main(int argc, char **argv) {
       i++;
     }
 
+    else if(strcmp(argv[i], "-i") == 0) {
+      inverse_order = 1;
+      i++;
+    }
+
     else if(strcmp(argv[i], "-z") == 0) {
       zsh_history = 1;
       i++;
@@ -415,6 +421,7 @@ int main(int argc, char **argv) {
            << " [-v]"
            << " [-m]"
            << " [-z]"
+           << " [-i]"
            << " [-c <fg modeline> <bg modeline> <fg highlight> <bg highlight>]"
            << " [-o <output filename>]"
            << " [-s <pattern separator>]"
@@ -444,14 +451,24 @@ int main(int argc, char **argv) {
   int nb_lines = 0;
   while(nb_lines < nb_lines_max && !file.eof()) {
     file.getline(buffer, buffer_size);
-    char *s = buffer;
-    if(zsh_history && *s == ':') {
-      while(*s && *s != ';') s++;
-      if(*s == ';') s++;
-    }
-    lines[nb_lines] = new char[strlen(s) + 1];
-    strcpy(lines[nb_lines], s);
-    nb_lines++;
+    if(strcmp(buffer, "") != 0) {
+      char *s = buffer;
+      if(zsh_history && *s == ':') {
+        while(*s && *s != ';') s++;
+        if(*s == ';') s++;
+      }
+      lines[nb_lines] = new char[strlen(s) + 1];
+      strcpy(lines[nb_lines], s);
+      nb_lines++;
+    }
+  }
+
+  if(inverse_order) {
+    for(int i = 0; i < nb_lines/2; i++) {
+      char *s = lines[nb_lines - 1 - i];
+      lines[nb_lines - 1 - i] = lines[i];
+      lines[i] = s;
+    }
   }
 
   char patterns[buffer_size];