X-Git-Url: https://fleuret.org/cgi-bin/gitweb/gitweb.cgi?a=blobdiff_plain;f=selector.cc;h=f909ba03120653458ba5df5282c3e592d6fbb1da;hb=18b5fa3a68a27a487b77923604e9de05d6263bf7;hp=2664dd7768359fda1f39a66de46f1aa1a1c64a47;hpb=2e6257964d214b205e798891487f7d8489c7f406;p=selector.git

diff --git a/selector.cc b/selector.cc
index 2664dd7..f909ba0 100644
--- a/selector.cc
+++ b/selector.cc
@@ -22,7 +22,7 @@
  *
  */
 
-// Here is how to use it as a super-history-search
+// To use it as a super-history-search:
 // ./selector -v -f ${HISTFILE}
 
 // This software is highly Linux-specific, but I would be glad to get
@@ -46,9 +46,40 @@ using namespace std;
 // Yeah, global variables!
 
 int buffer_size = 1024;
-int nb_lines_max = 1000;
+int nb_lines_max = 10000;
 char pattern_separator = ';';
 int output_to_vt_buffer = 0;
+int with_colors = 1;
+
+//////////////////////////////////////////////////////////////////////
+
+// This looks severely Linux-only ...
+
+void inject_into_tty_buffer(char *line) {
+  char *tty = ttyname(STDIN_FILENO);
+  int fd = open(tty, O_WRONLY);
+
+  struct termios oldtio, newtio;
+
+  if (fd >= 0) {
+    // Save current port settings
+    tcgetattr(fd,&oldtio);
+    memset(&newtio, 0, sizeof(newtio));
+    // Set input mode (non-canonical, *no echo*,...)
+    tcflush(fd, TCIFLUSH);
+    tcsetattr(fd,TCSANOW, &newtio);
+    // Put the selected line in the tty input buffer
+    for(char *k = line; *k; k++) {
+      ioctl(fd, TIOCSTI, k);
+    }
+    // Restore the old settings
+    tcsetattr(fd,TCSANOW, &oldtio);
+    close(fd);
+  } else {
+    cerr << "Can not open " << tty << "." << endl;
+    exit(1);
+  }
+}
 
 //////////////////////////////////////////////////////////////////////
 
@@ -126,8 +157,6 @@ void update_screen(int *current_line, int *temporary_line, int motion,
   int console_width = getmaxx(stdscr);
   int console_height = getmaxy(stdscr);
 
-  int nb_printed_lines = 1;
-
   // First, we find a visible line. In priority: The current, or the
   // first visible after it, or the first visible before it.
 
@@ -172,6 +201,8 @@ void update_screen(int *current_line, int *temporary_line, int motion,
 
   addstr("\n");
 
+  int nb_printed_lines = 1;
+
   // Here new_line is either a line number matching the patterns, or -1
 
   if(new_line >= 0) {
@@ -231,9 +262,15 @@ void update_screen(int *current_line, int *temporary_line, int motion,
         // Highlight the highlighted line ...
 
         if(l == new_line) {
-          attron(COLOR_PAIR(2));
-          addnstr(buffer, console_width);
-          attroff(COLOR_PAIR(2));
+          if(with_colors) {
+            attron(COLOR_PAIR(2));
+            addnstr(buffer, console_width);
+            attroff(COLOR_PAIR(2));
+          } else {
+            attron(A_STANDOUT);
+            addnstr(buffer, console_width);
+            attroff(A_STANDOUT);
+          }
         } else {
           addnstr(buffer, console_width);
         }
@@ -242,12 +279,13 @@ void update_screen(int *current_line, int *temporary_line, int motion,
       }
     }
 
-    *temporary_line = new_line;
     if(motion != 0) {
       *current_line = new_line;
     }
   }
 
+  *temporary_line = new_line;
+
   if(nb_printed_lines == 1) {
     addnstr("[no selection]\n", console_width);
     nb_printed_lines++;
@@ -276,9 +314,15 @@ void update_screen(int *current_line, int *temporary_line, int motion,
   buffer[console_width] = '\0';
 
   move(0, 0);
-  attron(COLOR_PAIR(1));
-  addnstr(buffer, console_width);
-  attroff(COLOR_PAIR(1));
+  if(with_colors) {
+    attron(COLOR_PAIR(1));
+    addnstr(buffer, console_width);
+    attroff(COLOR_PAIR(1));
+  } else {
+    attron(A_REVERSE);
+    addnstr(buffer, console_width);
+    attroff(A_REVERSE);
+  }
 
   // We are done
 
@@ -291,6 +335,15 @@ int main(int argc, char **argv) {
   char buffer[buffer_size];
   char *lines[nb_lines_max];
   int no_blink = 0;
+  int color_fg_modeline, color_bg_modeline;
+  int color_fg_highlight, color_bg_highlight;
+
+  color_fg_modeline = COLOR_WHITE;
+  color_bg_modeline = COLOR_BLACK;
+  color_fg_highlight = COLOR_BLACK;
+  color_bg_highlight = COLOR_YELLOW;
+
+  setlocale(LC_ALL, "");
 
   char input_filename[buffer_size], output_filename[buffer_size];
   strcpy(input_filename, "");
@@ -315,6 +368,11 @@ int main(int argc, char **argv) {
       i++;
     }
 
+    else if(strcmp(argv[i], "-m") == 0) {
+      with_colors = 0;
+      i++;
+    }
+
     else if(strcmp(argv[i], "-f") == 0) {
       check_opt(argc, argv, i, 1, "<input filename>");
       strncpy(input_filename, argv[i+1], buffer_size);
@@ -332,6 +390,15 @@ int main(int argc, char **argv) {
       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]);
+      i += 5;
+    }
+
     else {
       cerr << "Selector version " << VERSION
            << endl
@@ -339,8 +406,9 @@ int main(int argc, char **argv) {
            << endl
            << argv[0]
            << " [-h]"
-           << " [-b]"
            << " [-v]"
+           << " [-m]"
+           << " [-c <fg modeline> <bg modeline> <fg highlight> <bg highlight>]"
            << " [-o <output filename>]"
            << " [-s <pattern separator>]"
            << " [-l <max number of lines>]"
@@ -381,22 +449,31 @@ int main(int argc, char **argv) {
 
   initscr();
 
-  if(!has_colors()) {
-    cerr << "No colors." << endl;
-    return 1;
+  if(with_colors) {
+    if(has_colors()) {
+      start_color();
+      if(color_fg_modeline < 0  || color_fg_modeline >= COLORS ||
+         color_bg_modeline < 0  || color_bg_modeline >= COLORS ||
+         color_fg_highlight < 0 || color_bg_highlight >= COLORS ||
+         color_bg_highlight < 0 || color_bg_highlight >= COLORS) {
+        echo();
+        curs_set(1);
+        endwin();
+        cerr << "Color numbers have to be between 0 and " << COLORS - 1 << "." << endl;
+        exit(1);
+      }
+      init_pair(1, color_fg_modeline, color_bg_modeline);
+      init_pair(2, color_fg_highlight, color_bg_highlight);
+    } else {
+      with_colors = 0;
+    }
   }
 
   noecho();
-  curs_set(0);
-  keypad(stdscr, TRUE);
-
-  start_color();
-  // init_pair(1, COLOR_WHITE, COLOR_BLACK);
-  init_pair(1, COLOR_WHITE, COLOR_GREEN);
-  init_pair(2, COLOR_BLACK, COLOR_YELLOW);
+  curs_set(0); // Hide the cursor
+  keypad(stdscr, TRUE); // So that the arrow keys work
 
   int key;
-
   int current_line = 0, temporary_line = 0;
 
   update_screen(&current_line, &temporary_line, 0, nb_lines, lines, patterns, no_blink);
@@ -407,7 +484,7 @@ int main(int argc, char **argv) {
 
     int motion = 0;
 
-    if(key >= ' ' && key <= 'z') {
+    if(key >= ' ' && key <= '~') {
       patterns[patterns_point++] = key;
       patterns[patterns_point] = '\0';
     }
@@ -445,36 +522,17 @@ int main(int argc, char **argv) {
 
     update_screen(&current_line, &temporary_line, motion,
                   nb_lines, lines, patterns, no_blink);
+
   } while(key != '\n' && key != KEY_ENTER && key != '');
 
   echo();
   curs_set(1);
   endwin();
 
-  if((key == KEY_ENTER || key == '\n') && temporary_line >= 0 && temporary_line < nb_lines) {
+  if((key == KEY_ENTER || key == '\n')) {
     if(output_to_vt_buffer) {
-      char *tty = ttyname (STDIN_FILENO);
-      int fd = open(tty, O_WRONLY);
-
-      struct termios oldtio, newtio;
-
-      if (fd >= 0) {
-        // Save current port settings
-        tcgetattr(fd,&oldtio);
-        bzero(&newtio, sizeof(newtio));
-        // Set input mode (non-canonical, *no echo*,...)
-        tcflush(fd, TCIFLUSH);
-        tcsetattr(fd,TCSANOW, &newtio);
-        // Put the selected line in the tty input buffer
-        for(char *k = lines[temporary_line]; *k; k++) {
-          ioctl(fd, TIOCSTI, k);
-        }
-        // Restore the old settings
-        tcsetattr(fd,TCSANOW, &oldtio);
-        close(fd);
-      } else {
-        cerr << "Can not open " << tty << "." << endl;
-        exit(1);
+      if(temporary_line >= 0 && temporary_line < nb_lines) {
+        inject_into_tty_buffer(lines[temporary_line]);
       }
     } else {
       ofstream out(output_filename);
@@ -482,7 +540,11 @@ int main(int argc, char **argv) {
         cerr << "Can not open " << output_filename << " for writing." << endl;
         exit(1);
       } else {
-        out << lines[temporary_line] << endl;
+        if(temporary_line >= 0 && temporary_line < nb_lines) {
+          out << lines[temporary_line] << endl;
+        } else {
+          out << endl;
+        }
       }
       out.flush();
     }