InputText: added CJK double-width punctuation to list of separators considered for CTRL+Arrow.

docs/CHANGELOG.txt

@@ -44,6 +44,7 @@ Breaking changes:
 Other changes:
 
 - Nav: pressing any keyboard key while holding Alt disable toggling nav layer on Alt release. (#4439)
+- InputText: added CJK double-width punctuation to list of separators considered for CTRL+Arrow.
 
 -----------------------------------------------------------------------
  VERSION 1.91.1 (Released 2024-09-04)

imgui_widgets.cpp

@@ -3894,9 +3894,18 @@ static void    STB_TEXTEDIT_LAYOUTROW(StbTexteditRow* r, ImGuiInputTextState* ob
     r->num_chars = (int)(text_remaining - (text + line_start_idx));
 }
 
-static bool is_separator(unsigned int c)
+static bool ImCharIsSeparatorW(unsigned int c)
 {
-    return c==',' || c==';' || c=='(' || c==')' || c=='{' || c=='}' || c=='[' || c==']' || c=='|' || c=='\n' || c=='\r' || c=='.' || c=='!' || c=='\\' || c=='/';
+    static const unsigned int separator_list[] =
+    {
+        ',', 0x3001, '.', 0x3002, ';', 0xFF1B, '(', 0xFF08, ')', 0xFF09, '{', 0xFF5B, '}', 0xFF5D,
+        '[', 0x300C, ']', 0x300D, '|', 0xFF5C, '!', 0xFF01, '\\', 0xFFE5, '/', 0x30FB, 0xFF0F,
+        '\n', '\r',
+    };
+    for (unsigned int separator : separator_list)
+        if (c == separator)
+            return true;
+    return false;
 }
 
 static int is_word_boundary_from_right(ImGuiInputTextState* obj, int idx)
@@ -3906,9 +3915,9 @@ static int is_word_boundary_from_right(ImGuiInputTextState* obj, int idx)
         return 0;
 
     bool prev_white = ImCharIsBlankW(obj->TextW[idx - 1]);
-    bool prev_separ = is_separator(obj->TextW[idx - 1]);
+    bool prev_separ = ImCharIsSeparatorW(obj->TextW[idx - 1]);
     bool curr_white = ImCharIsBlankW(obj->TextW[idx]);
-    bool curr_separ = is_separator(obj->TextW[idx]);
+    bool curr_separ = ImCharIsSeparatorW(obj->TextW[idx]);
     return ((prev_white || prev_separ) && !(curr_separ || curr_white)) || (curr_separ && !prev_separ);
 }
 static int is_word_boundary_from_left(ImGuiInputTextState* obj, int idx)
@@ -3917,9 +3926,9 @@ static int is_word_boundary_from_left(ImGuiInputTextState* obj, int idx)
         return 0;
 
     bool prev_white = ImCharIsBlankW(obj->TextW[idx]);
-    bool prev_separ = is_separator(obj->TextW[idx]);
+    bool prev_separ = ImCharIsSeparatorW(obj->TextW[idx]);
     bool curr_white = ImCharIsBlankW(obj->TextW[idx - 1]);
-    bool curr_separ = is_separator(obj->TextW[idx - 1]);
+    bool curr_separ = ImCharIsSeparatorW(obj->TextW[idx - 1]);
     return ((prev_white) && !(curr_separ || curr_white)) || (curr_separ && !prev_separ);
 }
 static int  STB_TEXTEDIT_MOVEWORDLEFT_IMPL(ImGuiInputTextState* obj, int idx)   { idx--; while (idx >= 0 && !is_word_boundary_from_right(obj, idx)) idx--; return idx < 0 ? 0 : idx; }