X-Git-Url: https://git.stderr.nl/gitweb?a=blobdiff_plain;f=src%2Finput.c;h=bf15211267292148fd1f6b582582e6bf666a7317;hb=c8c67078daea54fdf03b46726a77ecf26cf65be4;hp=caa1824c5d92e75b4c54fce70fa23ff1f9dcfb09;hpb=49eca40060b04105343874714fa67976b9430def;p=rodin%2Fchimara.git diff --git a/src/input.c b/src/input.c index caa1824..bf15211 100644 --- a/src/input.c +++ b/src/input.c @@ -1,139 +1,209 @@ #include "input.h" /** glk_request_char_event: - * @win: A window to request char events from Request + * @win: A window to request char events from. * - * Request input of a Latin-1 character or special key. A window cannot have requests - * for both character and line input at the same time. Nor can it have requests - * for character input of both types (Latin-1 and Unicode). It is illegal to - * call glk_request_char_event() if the window already has a pending request - * for either character or line input. + * Request input of a Latin-1 character or special key. A window cannot have + * requests for both character and line input at the same time. Nor can it have + * requests for character input of both types (Latin-1 and Unicode). It is + * illegal to call glk_request_char_event() if the window already has a pending + * request for either character or line input. */ void glk_request_char_event(winid_t win) { g_return_if_fail(win); g_return_if_fail(win->input_request_type == INPUT_REQUEST_NONE); - g_return_if_fail(win->window_type != wintype_TextBuffer || win->window_type != wintype_TextGrid); + g_return_if_fail(win->type != wintype_TextBuffer || win->type != wintype_TextGrid); win->input_request_type = INPUT_REQUEST_CHARACTER; g_signal_handler_unblock( G_OBJECT(win->widget), win->keypress_handler ); } /** glk_request_char_event_uni: - * @win: A window to request char events from Request + * @win: A window to request char events from. * - * Request input of a Unicode character or special key. A window cannot have requests - * for both character and line input at the same time. Nor can it have requests - * for character input of both types (Latin-1 and Unicode). It is illegal to - * call glk_request_char_event_uni() if the window already has a pending request - * for either character or line input. + * Request input of a Unicode character or special key. See + * glk_request_char_event(). */ void glk_request_char_event_uni(winid_t win) { g_return_if_fail(win); g_return_if_fail(win->input_request_type == INPUT_REQUEST_NONE); - g_return_if_fail(win->window_type != wintype_TextBuffer || win->window_type != wintype_TextGrid); + g_return_if_fail(win->type != wintype_TextBuffer || win->type != wintype_TextGrid); win->input_request_type = INPUT_REQUEST_CHARACTER_UNICODE; g_signal_handler_unblock( G_OBJECT(win->widget), win->keypress_handler ); } +/* Internal function: Request either latin-1 or unicode line input. */ void -glk_request_line_event(winid_t win, char* buf, glui32 maxlen, glui32 initlen) +request_line_event_common(winid_t win, glui32 maxlen, gboolean insert, gchar *inserttext) { - GtkTextBuffer *window_buffer; + GtkTextBuffer *buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(win->widget) ); + + if(win->type == wintype_TextGrid) + { + GtkTextMark *cursor = gtk_text_buffer_get_mark(buffer, "cursor_position"); + GtkTextIter start_iter, end_iter; + gtk_text_buffer_get_iter_at_mark(buffer, &start_iter, cursor); + + /* Determine the maximum length of the line input */ + gint cursorpos = gtk_text_iter_get_line_offset(&start_iter); + gint input_length = MIN(win->width - 1 - cursorpos, win->line_input_buffer_max_len); + end_iter = start_iter; + gtk_text_iter_set_line_offset(&end_iter, cursorpos + input_length); + + /* Insert pre-entered text if needed */ + gchar *text; + if(!insert) + text = g_strnfill(input_length, ' '); + else + { + gchar *blanks = g_strnfill(input_length - g_utf8_strlen(inserttext, -1), ' '); + text = g_strconcat(inserttext, blanks, NULL); + g_free(blanks); + } + + /* Erase the text currently in the input field and replace it with blanks or the insert text, with the editable "input_field" tag */ + GtkTextIter text_start, text_end; + GtkTextTag *uneditable = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(buffer), "uneditable"); + gtk_text_buffer_delete(buffer, &start_iter, &end_iter); + gtk_text_buffer_get_start_iter(buffer, &text_start); + gtk_text_buffer_apply_tag(buffer, uneditable, &text_start, &start_iter); + gtk_text_buffer_insert_with_tags_by_name(buffer, &start_iter, text, -1, "input_field", NULL); + g_free(text); + gtk_text_buffer_get_end_iter(buffer, &text_end); + gtk_text_buffer_apply_tag(buffer, uneditable, &start_iter, &text_end); + + gtk_text_view_set_editable(GTK_TEXT_VIEW(win->widget), TRUE); + g_signal_handler_unblock(GTK_TEXT_VIEW(win->widget), win->insert_text_handler); + } + else if(win->type == wintype_TextBuffer) + { + /* Move the input_position mark to the end of the window_buffer */ + GtkTextMark *input_position = gtk_text_buffer_get_mark(buffer, "input_position"); + GtkTextIter end_iter; + gtk_text_buffer_get_end_iter(buffer, &end_iter); + gtk_text_buffer_move_mark(buffer, input_position, &end_iter); + + /* Set the entire contents of the window_buffer as uneditable + * (so input can only be entered at the end) */ + GtkTextIter start_iter; + gtk_text_buffer_get_start_iter(buffer, &start_iter); + gtk_text_buffer_remove_tag_by_name(buffer, "uneditable", &start_iter, &end_iter); + gtk_text_buffer_apply_tag_by_name(buffer, "uneditable", &start_iter, &end_iter); + + /* Insert pre-entered text if needed */ + if(insert) + gtk_text_buffer_insert(buffer, &end_iter, inserttext, -1); + + /* Scroll to input point */ + gtk_text_view_scroll_mark_onscreen(GTK_TEXT_VIEW(win->widget), input_position); + + gtk_text_view_set_editable(GTK_TEXT_VIEW(win->widget), TRUE); + g_signal_handler_unblock(buffer, win->insert_text_handler); + } +} +/** + * glk_request_line_event: + * @win: A text buffer or text grid window to request line input on. + * @buf: A buffer of at least @maxlen bytes. + * @maxlen: Length of the buffer. + * @initlen: The number of characters in @buf to pre-enter. + * + * Requests input of a line of Latin-1 characters. A window cannot have requests + * for both character and line input at the same time. Nor can it have requests + * for line input of both types (Latin-1 and Unicode). It is illegal to call + * glk_request_line_event() if the window already has a pending request for + * either character or line input. + * + * The @buf argument is a pointer to space where the line input will be stored. + * (This may not be %NULL.) @maxlen is the length of this space, in bytes; the + * library will not accept more characters than this. If @initlen is nonzero, + * then the first @initlen bytes of @buf will be entered as pre-existing input + * -- just as if the player had typed them himself. (The player can continue + * composing after this pre-entered input, or delete it or edit as usual.) + * + * The contents of the buffer are undefined until the input is completed (either + * by a line input event, or glk_cancel_line_event(). The library may or may not + * fill in the buffer as the player composes, while the input is still pending; + * it is illegal to change the contents of the buffer yourself. + */ +void +glk_request_line_event(winid_t win, char* buf, glui32 maxlen, glui32 initlen) +{ g_return_if_fail(win); + g_return_if_fail(buf); g_return_if_fail(win->input_request_type == INPUT_REQUEST_NONE); - g_return_if_fail(win->window_type != wintype_TextBuffer || win->window_type != wintype_TextGrid); - - window_buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(win->widget)); + g_return_if_fail(win->type != wintype_TextBuffer || win->type != wintype_TextGrid); win->input_request_type = INPUT_REQUEST_LINE; win->line_input_buffer = buf; win->line_input_buffer_max_len = maxlen; - /* Move the input_position mark to the end of the window_buffer */ - GtkTextMark *input_position = gtk_text_buffer_get_mark(window_buffer, "input_position"); - GtkTextIter end_iter; - gtk_text_buffer_get_end_iter(window_buffer, &end_iter); - gtk_text_buffer_move_mark(window_buffer, input_position, &end_iter); - - /* Set the entire contents of the window_buffer as uneditable - * (so input can only be entered at the end) */ - GtkTextIter start_iter; - gtk_text_buffer_get_start_iter(window_buffer, &start_iter); - gtk_text_buffer_remove_tag_by_name(window_buffer, "uneditable", &start_iter, &end_iter); - gtk_text_buffer_apply_tag_by_name(window_buffer, "uneditable", &start_iter, &end_iter); - - if(initlen > 0) { - gtk_text_buffer_insert(window_buffer, &end_iter, buf, initlen); - } - - gtk_text_view_scroll_mark_onscreen(GTK_TEXT_VIEW(win->widget), input_position); - g_signal_handler_unblock( G_OBJECT(window_buffer), win->insert_text_handler ); - gtk_text_view_set_editable(GTK_TEXT_VIEW(win->widget), TRUE); + gchar *inserttext = (initlen > 0)? g_strndup(buf, initlen) : g_strdup(""); + request_line_event_common(win, maxlen, (initlen > 0), inserttext); + g_free(inserttext); } +/** + * glk_request_line_event_uni: + * @win: A text buffer or text grid window to request line input on. + * @buf: A buffer of at least @maxlen characters. + * @maxlen: Length of the buffer. + * @initlen: The number of characters in @buf to pre-enter. + * + * Request input of a line of Unicode characters. This works the same as + * glk_request_line_event(), except the result is stored in an array of + * glui32 values instead of an array of characters, and the values + * may be any valid Unicode code points. + * + * The result will be in Unicode Normalization Form C. This basically means that + * composite characters will be single characters where possible, instead of + * sequences of base and combining marks. See + * Unicode Standard Annex #15 + * for the details. + */ void glk_request_line_event_uni(winid_t win, glui32 *buf, glui32 maxlen, glui32 initlen) { - GtkTextBuffer *window_buffer; - g_return_if_fail(win); + g_return_if_fail(buf); g_return_if_fail(win->input_request_type == INPUT_REQUEST_NONE); - g_return_if_fail(win->window_type != wintype_TextBuffer || win->window_type != wintype_TextGrid); - - window_buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(win->widget)); + g_return_if_fail(win->type != wintype_TextBuffer || win->type != wintype_TextGrid); win->input_request_type = INPUT_REQUEST_LINE_UNICODE; win->line_input_buffer_unicode = buf; win->line_input_buffer_max_len = maxlen; - /* Move the input_position mark to the end of the window_buffer */ - GtkTextMark *input_position = gtk_text_buffer_get_mark(window_buffer, "input_position"); - GtkTextIter end_iter; - gtk_text_buffer_get_end_iter(window_buffer, &end_iter); - gtk_text_buffer_move_mark(window_buffer, input_position, &end_iter); - - /* Set the entire contents of the window_buffer as uneditable - * (so input can only be entered at the end) */ - GtkTextIter start_iter; - gtk_text_buffer_get_start_iter(window_buffer, &start_iter); - gtk_text_buffer_remove_tag_by_name(window_buffer, "uneditable", &start_iter, &end_iter); - gtk_text_buffer_apply_tag_by_name(window_buffer, "uneditable", &start_iter, &end_iter); - + gchar *utf8; if(initlen > 0) { GError *error = NULL; - gchar *utf8; utf8 = g_ucs4_to_utf8(buf, initlen, NULL, NULL, &error); if(utf8 == NULL) { - error_dialog(NULL, error, "Error during unicode->utf8 conversion: "); + g_warning("Error during unicode->utf8 conversion: %s", error->message); return; } - - gtk_text_buffer_insert(window_buffer, &end_iter, utf8, -1); - g_free(utf8); } + else + utf8 = g_strdup(""); - gtk_text_view_scroll_mark_onscreen(GTK_TEXT_VIEW(win->widget), input_position); - g_signal_handler_unblock( G_OBJECT(window_buffer), win->insert_text_handler ); - gtk_text_view_set_editable(GTK_TEXT_VIEW(win->widget), TRUE); + request_line_event_common(win, maxlen, (initlen > 0), utf8); + g_free(utf8); } - - +/* Internal function: Callback for signal key-press-event on a text buffer or text grid window. */ gboolean -on_window_key_press_event(GtkWidget *widget, GdkEventKey *event, winid_t window) -{ - if(window->input_request_type != INPUT_REQUEST_CHARACTER && - window->input_request_type != INPUT_REQUEST_CHARACTER_UNICODE) { +on_window_key_press_event(GtkWidget *widget, GdkEventKey *event, winid_t win) +{ + if(win->input_request_type != INPUT_REQUEST_CHARACTER && + win->input_request_type != INPUT_REQUEST_CHARACTER_UNICODE) return FALSE; - } int keycode; @@ -146,13 +216,15 @@ on_window_key_press_event(GtkWidget *widget, GdkEventKey *event, winid_t window) case GDK_KP_Left: keycode = keycode_Left; break; case GDK_Right: case GDK_KP_Right: keycode = keycode_Right; break; + case GDK_Linefeed: case GDK_Return: case GDK_KP_Enter: keycode = keycode_Return; break; case GDK_Delete: case GDK_BackSpace: case GDK_KP_Delete: keycode = keycode_Delete; break; case GDK_Escape: keycode = keycode_Escape; break; - case GDK_Tab: keycode = keycode_Tab; break; + case GDK_Tab: + case GDK_KP_Tab: keycode = keycode_Tab; break; case GDK_Page_Up: case GDK_KP_Page_Up: keycode = keycode_PageUp; break; case GDK_Page_Down: @@ -161,10 +233,14 @@ on_window_key_press_event(GtkWidget *widget, GdkEventKey *event, winid_t window) case GDK_KP_Home: keycode = keycode_Home; break; case GDK_End: case GDK_KP_End: keycode = keycode_End; break; - case GDK_F1: keycode = keycode_Func1; break; - case GDK_F2: keycode = keycode_Func2; break; - case GDK_F3: keycode = keycode_Func3; break; - case GDK_F4: keycode = keycode_Func4; break; + case GDK_F1: + case GDK_KP_F1: keycode = keycode_Func1; break; + case GDK_F2: + case GDK_KP_F2: keycode = keycode_Func2; break; + case GDK_F3: + case GDK_KP_F3: keycode = keycode_Func3; break; + case GDK_F4: + case GDK_KP_F4: keycode = keycode_Func4; break; case GDK_F5: keycode = keycode_Func5; break; case GDK_F6: keycode = keycode_Func6; break; case GDK_F7: keycode = keycode_Func7; break; @@ -175,108 +251,145 @@ on_window_key_press_event(GtkWidget *widget, GdkEventKey *event, winid_t window) case GDK_F12: keycode = keycode_Func12; break; default: keycode = gdk_keyval_to_unicode(event->keyval); + /* If keycode is 0, then keyval was not recognized; also return + unknown if Latin-1 input was requested and the character is not in + Latin-1 */ + if(keycode == 0 || (win->input_request_type == INPUT_REQUEST_CHARACTER && keycode > 255)) + keycode = keycode_Unknown; } - if(window->input_request_type == INPUT_REQUEST_CHARACTER) { - if(keycode >= 1 || keycode <= 255) { - event_throw(evtype_CharInput, window, keycode, 0); - } else { - event_throw(evtype_CharInput, window, keycode_Unknown, 0); - } - } else { - if(keycode == 0) { - event_throw(evtype_CharInput, window, keycode_Unknown, 0); - } else { - event_throw(evtype_CharInput, window, keycode, 0); - } - } - + event_throw(evtype_CharInput, win, keycode, 0); + /* Only one keypress will be handled */ - window->input_request_type = INPUT_REQUEST_NONE; - g_signal_handler_block( G_OBJECT(window->widget), window->keypress_handler ); + win->input_request_type = INPUT_REQUEST_NONE; + g_signal_handler_block( G_OBJECT(win->widget), win->keypress_handler ); return TRUE; } -void -on_window_insert_text(GtkTextBuffer *textbuffer, GtkTextIter *location, gchar *text, gint len, gpointer user_data) +/* Internal function: finish handling a line input request, for both text grid and text buffer windows. */ +static void +end_line_input_request(winid_t win, gchar *inserted_text) { - gchar *newline_pos = strchr(text, '\n'); - if(newline_pos != NULL) { - printf("position: %d\n", newline_pos-text); - *newline_pos = 'a'; - } + /* Convert the string from UTF-8 to Latin-1 or Unicode */ + if(win->input_request_type == INPUT_REQUEST_LINE) + { + GError *error = NULL; + gchar *latin1; + gsize bytes_written; + latin1 = g_convert_with_fallback(inserted_text, -1, "ISO-8859-1", "UTF-8", "?", NULL, &bytes_written, &error); + + if(latin1 == NULL) + { + g_warning("Error during utf8->latin1 conversion: %s", error->message); + event_throw(evtype_LineInput, win, 0, 0); + return; + } + + /* Place input in the echo stream */ + if(win->echo_stream != NULL) + glk_put_string_stream(win->echo_stream, latin1); + + /* Copy the string (but not the NULL at the end) */ + int copycount = MIN(win->line_input_buffer_max_len, bytes_written - 1); + memcpy(win->line_input_buffer, latin1, copycount); + g_free(latin1); + event_throw(evtype_LineInput, win, copycount, 0); + } + else if(win->input_request_type == INPUT_REQUEST_LINE_UNICODE) + { + gunichar *unicode; + glong items_written; + unicode = g_utf8_to_ucs4_fast(inserted_text, -1, &items_written); + + if(unicode == NULL) + { + g_warning("Error during utf8->unicode conversion"); + event_throw(evtype_LineInput, win, 0, 0); + return; + } + + /* Place input in the echo stream */ + /* TODO: fixme + if(win->echo_stream != NULL) + glk_put_string_stream_uni(window->echo_stream, unicode);*/ + + /* Copy the string (but not the NULL at the end) */ + int copycount = MIN(win->line_input_buffer_max_len, items_written); + memcpy(win->line_input_buffer_unicode, unicode, copycount * sizeof(gunichar)); + g_free(unicode); + event_throw(evtype_LineInput, win, copycount, 0); + } + else + g_warning("%s: Wrong input request type.", __func__); + + win->input_request_type = INPUT_REQUEST_NONE; } -void -after_window_insert_text(GtkTextBuffer *textbuffer, GtkTextIter *location, gchar *text, gint len, winid_t window) -{ - if( strchr(text, '\n') != NULL) { - /* Make the window uneditable again and remove signal handlers */ - GtkTextBuffer *window_buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(window->widget)); - gtk_text_view_set_editable(GTK_TEXT_VIEW(window->widget), FALSE); - g_signal_handler_block(window_buffer, window->insert_text_handler); - - /* Retrieve the text that was input */ - GtkTextMark *input_position = gtk_text_buffer_get_mark(window_buffer, "input_position"); - GtkTextIter start_iter; - GtkTextIter end_iter; - gtk_text_buffer_get_iter_at_mark(window_buffer, &start_iter, input_position); - gtk_text_buffer_get_end_iter(window_buffer, &end_iter); - gchar *inserted_text = gtk_text_buffer_get_text(window_buffer, &start_iter, &end_iter, FALSE); - - - /* Convert the string from UTF-8 to Latin-1 or Unicode */ - if(window->input_request_type == INPUT_REQUEST_LINE) { - GError *error = NULL; - gchar *latin1; - gsize bytes_written; - latin1 = g_convert_with_fallback(inserted_text, -1, "ISO-8859-1", "UTF-8", "?", NULL, &bytes_written, &error); - g_free(inserted_text); - - if(latin1 == NULL) - { - error_dialog(NULL, error, "Error during utf8->latin1 conversion: "); - event_throw(evtype_LineInput, window, 0, 0); - return; - } - /* Place input in the echo stream */ - if(window->echo_stream != NULL) - glk_put_string_stream(window->echo_stream, latin1); - - /* Copy the string (but not the NULL at the end) */ - memcpy(window->line_input_buffer, latin1, MIN(window->line_input_buffer_max_len, bytes_written-1)); - g_free(latin1); - event_throw(evtype_LineInput, window, MIN(window->line_input_buffer_max_len, bytes_written-1), 0); - } - else if(window->input_request_type == INPUT_REQUEST_LINE_UNICODE) { - gunichar *unicode; - glong items_written; - unicode = g_utf8_to_ucs4_fast(inserted_text, -1, &items_written); - g_free(inserted_text); - - if(unicode == NULL) - { - error_dialog(NULL, NULL, "Error during utf8->unicode conversion"); - event_throw(evtype_LineInput, window, 0, 0); - return; - } - - /* Place input in the echo stream */ - // TODO: fixme - // if(window->echo_stream != NULL) - // glk_put_string_stream_uni(window->echo_stream, unicode); - - /* Copy the string (but not the NULL at the end) */ - memcpy(window->line_input_buffer_unicode, unicode, MIN(window->line_input_buffer_max_len, items_written)*sizeof(gunichar)); - g_free(unicode); - event_throw(evtype_LineInput, window, MIN(window->line_input_buffer_max_len, items_written), 0); - } - else { - g_warning("%s: Wrong input request type.", __func__); - } +/* Internal function: Callback for signal key-press-event on a text grid window. Only unblocked during line input, so that we can catch the enter key before it inserts an enter into the window. */ +gboolean +on_text_grid_key_press_event(GtkWidget *widget, GdkEventKey *event, winid_t win) +{ + g_return_val_if_fail(win->type == wintype_TextGrid, FALSE); + g_return_val_if_fail(win->input_request_type == INPUT_REQUEST_LINE || win->input_request_type == INPUT_REQUEST_LINE_UNICODE, FALSE); + + if(event->keyval == GDK_Linefeed || event->keyval == GDK_Return || event->keyval == GDK_KP_Enter) + { + GtkTextBuffer *window_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(win->widget) ); + GtkTextIter start_iter, end_iter; + g_signal_handler_block(GTK_TEXT_VIEW(win->widget), win->insert_text_handler); + + /* Determine the bounds of the line input */ + GtkTextMark *cursor = gtk_text_buffer_get_mark(window_buffer, "cursor_position"); + gtk_text_buffer_get_iter_at_mark(window_buffer, &start_iter, cursor); + gint cursorpos = gtk_text_iter_get_line_offset(&start_iter); + gint input_length = MIN(win->width - 1 - cursorpos, win->line_input_buffer_max_len); + end_iter = start_iter; + gtk_text_iter_set_line_offset(&end_iter, cursorpos + input_length); + + gchar *inserted_text = g_strchomp( gtk_text_buffer_get_text(window_buffer, &start_iter, &end_iter, FALSE) ); + + /* Make the buffer uneditable again and remove the special tags */ + gtk_text_view_set_editable(GTK_TEXT_VIEW(win->widget), FALSE); + gtk_text_buffer_get_start_iter(window_buffer, &start_iter); + gtk_text_buffer_get_end_iter(window_buffer, &end_iter); + gtk_text_buffer_remove_tag_by_name(window_buffer, "uneditable", &start_iter, &end_iter); + gtk_text_buffer_remove_tag_by_name(window_buffer, "input_field", &start_iter, &end_iter); + + end_line_input_request(win, inserted_text); + g_free(inserted_text); + + /* Block the enter key */ + return TRUE; + } + + return FALSE; +} - window->input_request_type = INPUT_REQUEST_NONE; +/* Internal function: Callback for signal insert-text on a text buffer window. +Runs after the default handler has already inserted the text.*/ +void +after_window_insert_text(GtkTextBuffer *textbuffer, GtkTextIter *location, gchar *text, gint len, winid_t win) +{ + if( strchr(text, '\n') != NULL ) + { + /* Remove signal handlers */ + GtkTextBuffer *window_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(win->widget) ); + g_signal_handler_block(window_buffer, win->insert_text_handler); + + /* Make the window uneditable again and retrieve the text that was input */ + gchar *inserted_text; + GtkTextIter start_iter, end_iter; + + gtk_text_view_set_editable(GTK_TEXT_VIEW(win->widget), FALSE); + GtkTextMark *input_position = gtk_text_buffer_get_mark(window_buffer, "input_position"); + gtk_text_buffer_get_iter_at_mark(window_buffer, &start_iter, input_position); + gtk_text_buffer_get_end_iter(window_buffer, &end_iter); + + inserted_text = gtk_text_buffer_get_text(window_buffer, &start_iter, &end_iter, FALSE); + + end_line_input_request(win, inserted_text); + g_free(inserted_text); } }