Merge pull request #268 from xaizek/several-improvements

Improvements: code improvements, bottom prompt fixes, last item deletion crash fix.

.gitignore

@@ -0,0 +1,16 @@
+/autom4te.cache/
+/aclocal.m4
+/compile
+/config.guess
+/config.log
+/config.status
+/config.sub
+/configure
+/depcomp
+/install-sh
+/missing
+/src/hh
+.deps/
+Makefile
+Makefile.in
+*.o

src/hstr.c

@@ -474,10 +474,15 @@ void add_to_selection(Hstr *hstr, char *line, unsigned int *index)
 
 void print_help_label()
 {
+    int cursorX=getcurx(stdscr);
+    int cursorY=getcury(stdscr);
+
     char screenLine[CMDLINE_LNG];
     snprintf(screenLine, getmaxx(stdscr), "%s", LABEL_HELP);
     mvprintw(hstr->promptYHelp, 0, "%s", screenLine); clrtoeol();
     refresh();
+
+    move(cursorY, cursorX);
 }
 
 void print_confirm_delete(const char *cmd, Hstr *hstr)
@@ -492,7 +497,7 @@ void print_confirm_delete(const char *cmd, Hstr *hstr)
     mvprintw(hstr->promptYHelp, 0, "%s", screenLine);
     if(hstr->theme & HH_THEME_COLOR) {
         color_attr_off(A_BOLD);
-        color_attr_on(COLOR_PAIR(1));
+        color_attr_on(COLOR_PAIR(HH_COLOR_NORMAL));
     }
     clrtoeol();
     refresh();
@@ -510,7 +515,7 @@ void print_cmd_deleted_label(const char *cmd, int occurences, Hstr *hstr)
     mvprintw(hstr->promptYHelp, 0, "%s", screenLine);
     if(hstr->theme & HH_THEME_COLOR) {
         color_attr_off(A_BOLD);
-        color_attr_on(COLOR_PAIR(1));
+        color_attr_on(COLOR_PAIR(HH_COLOR_NORMAL));
     }
     clrtoeol();
     refresh();
@@ -527,7 +532,7 @@ void print_regexp_error(const char *errorMessage)
     mvprintw(hstr->promptYHelp, 0, "%s", screenLine);
     if(hstr->theme & HH_THEME_COLOR) {
         color_attr_off(A_BOLD);
-        color_attr_on(COLOR_PAIR(1));
+        color_attr_on(COLOR_PAIR(HH_COLOR_NORMAL));
     }
     clrtoeol();
     refresh();
@@ -544,7 +549,7 @@ void print_cmd_added_favorite_label(const char *cmd, Hstr *hstr)
     mvprintw(hstr->promptYHelp, 0, screenLine);
     if(hstr->theme & HH_THEME_COLOR) {
         color_attr_off(A_BOLD);
-        color_attr_on(COLOR_PAIR(1));
+        color_attr_on(COLOR_PAIR(HH_COLOR_NORMAL));
     }
     clrtoeol();
     refresh();
@@ -820,7 +825,7 @@ void hstr_print_highlighted_selection_row(char *text, int y, int width, Hstr *hs
 {
     color_attr_on(A_BOLD);
     if(hstr->theme & HH_THEME_COLOR) {
-        color_attr_on(COLOR_PAIR(2));
+        color_attr_on(COLOR_PAIR(HH_COLOR_HIROW));
     } else {
         color_attr_on(A_REVERSE);
     }
@@ -830,7 +835,7 @@ void hstr_print_highlighted_selection_row(char *text, int y, int width, Hstr *hs
             getmaxx(stdscr)-2, getmaxx(stdscr)-2, text);
     mvprintw(y, 0, "%s", screenLine);
     if(hstr->theme & HH_THEME_COLOR) {
-        color_attr_on(COLOR_PAIR(1));
+        color_attr_on(COLOR_PAIR(HH_COLOR_NORMAL));
     } else {
         color_attr_off(A_REVERSE);
     }
@@ -1065,6 +1070,10 @@ void loop_to_select(Hstr *hstr)
             printDefaultLabel=FALSE;
         }
 
+        if(c == K_CTRL_R) {
+            c = (hstr->promptBottom ? K_CTRL_P : K_CTRL_N);
+        }
+
         switch (c) {
         case KEY_HOME:
             // avoids printing of wild chars in search prompt
@@ -1094,6 +1103,12 @@ void loop_to_select(Hstr *hstr)
                 printDefaultLabel=TRUE;
                 print_history_label();
 
+                if(hstr->selectionSize == 0) {
+                    // just update the cursor, there are no elements to select
+                    move(hstr->promptY, basex+strlen(pattern));
+                    break;
+                }
+
                 if(hstr->promptBottom) {
                     if(selectionCursorPosition <= hstr->promptYItemsEnd-hstr->selectionSize+1) {
                         selectionCursorPosition=hstr->promptYItemsEnd-hstr->selectionSize+1;
@@ -1168,6 +1183,7 @@ void loop_to_select(Hstr *hstr)
             break;
         case KEY_RESIZE:
             print_history_label();
+            maxHistoryItems=recalculate_max_history_items();
             result=hstr_print_selection(maxHistoryItems, pattern, hstr);
             print_history_label();
             selectionCursorPosition=SELECTION_CURSOR_IN_PROMPT;
@@ -1237,7 +1253,6 @@ void loop_to_select(Hstr *hstr)
             highlight_selection(selectionCursorPosition, previousSelectionCursorPosition, pattern, hstr);
             move(hstr->promptY, basex+strlen(pattern));
             break;
-        case K_CTRL_R:
         case KEY_DOWN:
         case K_CTRL_J:
         case K_CTRL_N:

src/hstr_curses.c

@@ -32,6 +32,14 @@ void hstr_curses_start()
         start_color();
         use_default_colors();
     }
+
+#if defined(NCURSES_EXT_FUNCS) && NCURSES_EXT_FUNCS >= 20081102
+    // Use ncurses specific function to make delay after pressing escape key
+    // unnoticeable.  Can be zero, but in some corner cases multiple bytes
+    // composing a functional key code might be handled to the application with
+    // a delay, so small delay is safer.
+    set_escdelay(5);
+#endif
 }
 
 bool terminal_has_colors() {

src/hstr_history.c

@@ -16,6 +16,7 @@
  limitations under the License.
 */
 
+#include <ctype.h>
 #include <stdio.h>
 #include <limits.h>
 #include <readline/history.h>
@@ -89,6 +90,24 @@ int get_item_offset(void)
     }
 }
 
+bool is_hist_timestamp(const char *line)
+{
+    // HISTTIMEFORMAT defined > ^#1234567890$
+
+    if(line[0] != '#') {
+        return false;
+    }
+
+    int i;
+    for(i = 1; line[i] != '\0'; ++i) {
+        if(!isdigit(line[i])) {
+            return false;
+        }
+    }
+
+    return (i >= 11);
+}
+
 HistoryItems *get_prioritized_history(int optionBigKeys, HashSet *blacklist)
 {
     using_history();
@@ -112,11 +131,6 @@ HistoryItems *get_prioritized_history(int optionBigKeys, HashSet *blacklist)
         radixsort_init(&rs, (radixMaxKeyEstimate<100000?100000:radixMaxKeyEstimate));
         rs.optionBigKeys=optionBigKeys;
 
-        regex_t regexp;
-        // HISTTIMEFORMAT defined > ^#1234567890$
-        const char *histtimeformatTimestamp = "^#[[:digit:]]\\{10,\\}$";
-        regexp_compile(&regexp, histtimeformatTimestamp);
-
         RankedHistoryItem *r;
         RadixItem *radixItem;
         HIST_ENTRY **historyList=history_list();
@@ -124,7 +138,7 @@ HistoryItems *get_prioritized_history(int optionBigKeys, HashSet *blacklist)
         int rawOffset=historyState->length-1, rawTimestamps=0;
         char *line;
         for(i=0; i<historyState->length; i++, rawOffset--) {
-            if(!regexp_match(&regexp, historyList[i]->line)) {
+            if(is_hist_timestamp(historyList[i]->line)) {
                 rawHistory[rawOffset]=0;
                 rawTimestamps++;
                 continue;
@@ -171,8 +185,6 @@ HistoryItems *get_prioritized_history(int optionBigKeys, HashSet *blacklist)
             }
         }
 
-        regfree(&regexp);
-
         DEBUG_RADIXSORT();
 
         RadixItem **prioritizedRadix=radixsort_dump(&rs);
@@ -224,13 +236,7 @@ int history_mgmt_remove_from_system_history(char *cmd)
     char *l;
     HISTORY_STATE *historyState=history_get_history_state();
 
-    // TODO refactor this code to have this in source exactly once
-    regex_t tsRegexp;
     regex_t zshRegexp;
-    // HISTTIMEFORMAT defined > ^#1234567890$
-    const char *histtimeformatTimestamp = "^#[[:digit:]]\\{10,\\}$";
-    regexp_compile(&tsRegexp, histtimeformatTimestamp);
-
     const char *zshTimestamp = "^: [[:digit:]]\\{10,\\}:[[:digit:]];.*";
     regexp_compile(&zshRegexp, zshTimestamp);
 
@@ -246,7 +252,7 @@ int history_mgmt_remove_from_system_history(char *cmd)
                if(offset>0) {
                    l=historyState->entries[offset-1]->line;
                    if(l && strlen(l)) {
-                       if(!regexp_match(&tsRegexp, l)) {
+                       if(is_hist_timestamp(l)) {
                            // TODO check that this delete doesn't cause mismatch of searched cmd to be deleted
                            free_history_entry(remove_history(offset-1));
                        }