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-rw-r--r--src/fe-text/textbuffer-reformat.c279
1 files changed, 279 insertions, 0 deletions
diff --git a/src/fe-text/textbuffer-reformat.c b/src/fe-text/textbuffer-reformat.c
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+++ b/src/fe-text/textbuffer-reformat.c
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+/*
+ textbuffer-reformat.c : Reformatting lines in text buffer
+
+ Copyright (C) 1999-2001 Timo Sirainen
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+*/
+
+#include "module.h"
+#include "signals.h"
+#include "settings.h"
+
+#include "formats.h"
+
+#include "gui-windows.h"
+#include "textbuffer.h"
+
+static GString *format;
+static int scrollback_save_formats;
+
+/* Read one block between \0<format>s */
+static char *line_read_format(unsigned const char **text)
+{
+ GString *str;
+ char *ret;
+
+ str = g_string_new(NULL);
+ for (;;) {
+ if (**text == '\0') {
+ if ((*text)[1] == LINE_CMD_EOL) {
+ /* leave text at \0<eof> */
+ break;
+ }
+ if ((*text)[1] == LINE_CMD_FORMAT_CONT) {
+ /* leave text at \0<format_cont> */
+ break;
+ }
+ (*text)++;
+
+ if (**text == LINE_CMD_FORMAT) {
+ /* move text to start after \0<format> */
+ (*text)++;
+ break;
+ }
+
+ if (**text == LINE_CMD_CONTINUE) {
+ unsigned char *tmp;
+
+ memcpy(&tmp, (*text)+1, sizeof(char *));
+ *text = tmp;
+ continue;
+ } else if (**text & 0x80)
+ (*text)++;
+ continue;
+ }
+
+ g_string_append_c(str, (char) **text);
+ (*text)++;
+ }
+
+ ret = str->str;
+ g_string_free(str, FALSE);
+ return ret;
+}
+
+static char *textbuffer_line_get_format(WINDOW_REC *window, LINE_REC *line,
+ GString *raw)
+{
+ const unsigned char *text;
+ char *module, *format_name, *args[MAX_FORMAT_PARAMS], *ret;
+ TEXT_DEST_REC dest;
+ int formatnum, argcount;
+
+ text = (const unsigned char *) line->text;
+
+ /* skip the beginning of the line until we find the format */
+ g_free(line_read_format(&text));
+ if (text[1] == LINE_CMD_FORMAT_CONT) {
+ if (raw != NULL) {
+ g_string_append_c(raw, '\0');
+ g_string_append_c(raw, (char)LINE_CMD_FORMAT_CONT);
+ }
+ return NULL;
+ }
+
+ /* read format information */
+ module = line_read_format(&text);
+ format_name = line_read_format(&text);
+
+ if (raw != NULL) {
+ g_string_append_c(raw, '\0');
+ g_string_append_c(raw, (char)LINE_CMD_FORMAT);
+
+ g_string_append(raw, module);
+
+ g_string_append_c(raw, '\0');
+ g_string_append_c(raw, (char)LINE_CMD_FORMAT);
+
+ g_string_append(raw, format_name);
+ }
+
+ formatnum = format_find_tag(module, format_name);
+ if (formatnum == -1)
+ ret = NULL;
+ else {
+ argcount = 0;
+ memset(args, 0, sizeof(args));
+ while (*text != '\0' || text[1] != LINE_CMD_EOL) {
+ args[argcount] = line_read_format(&text);
+ if (raw != NULL) {
+ g_string_append_c(raw, '\0');
+ g_string_append_c(raw,
+ (char)LINE_CMD_FORMAT);
+
+ g_string_append(raw, args[argcount]);
+ }
+ argcount++;
+ }
+
+ /* get the format text */
+ format_create_dest(&dest, NULL, NULL, line->info.level, window);
+ ret = format_get_text_theme_charargs(current_theme,
+ module, &dest,
+ formatnum, args);
+ while (argcount > 0)
+ g_free(args[--argcount]);
+ }
+
+ g_free(module);
+ g_free(format_name);
+
+ return ret;
+}
+
+void textbuffer_reformat_line(WINDOW_REC *window, LINE_REC *line)
+{
+ GUI_WINDOW_REC *gui;
+ TEXT_DEST_REC dest;
+ LINE_REC *line_prev;
+ LINE_INFO_REC line_info;
+ GString *raw;
+ char *str, *tmp, *prestr, *linestart, *leveltag;
+
+ gui = WINDOW_GUI(window);
+
+ raw = g_string_new(NULL);
+ str = textbuffer_line_get_format(window, line, raw);
+
+ if (str == NULL && raw->len == 2 &&
+ raw->str[1] == (char)LINE_CMD_FORMAT_CONT) {
+ /* multiline format, format explained in one the
+ following lines. remove this line. */
+ textbuffer_view_remove_line(gui->view, line);
+ } else if (str != NULL) {
+ /* FIXME: ugly ugly .. and this can't handle
+ unformatted lines.. */
+ g_string_append_c(raw, '\0');
+ g_string_append_c(raw, (char)LINE_CMD_EOL);
+
+ line_prev = line->prev;
+ memcpy(&line_info, &line->info, sizeof(line_info));
+ textbuffer_view_remove_line(gui->view, line); line = NULL;
+
+ format_create_dest(&dest, NULL, NULL, line_info.level, window);
+
+ linestart = format_get_line_start(current_theme, &dest, line_info.time);
+ leveltag = format_get_level_tag(current_theme, &dest);
+
+ prestr = g_strconcat(linestart == NULL ? "" : linestart,
+ leveltag, NULL);
+ g_free_not_null(linestart);
+ g_free_not_null(leveltag);
+
+ tmp = format_add_linestart(str, prestr);
+ g_free(str);
+ g_free(prestr);
+
+ gui->use_insert_after = TRUE;
+ gui->insert_after = line_prev;
+ format_send_to_gui(&dest, tmp);
+ gui->use_insert_after = FALSE;
+ g_free(tmp);
+
+ line = textbuffer_insert(gui->view->buffer, gui->insert_after,
+ raw->str, raw->len, &line_info);
+ textbuffer_view_insert_line(gui->view, line);
+ }
+ g_string_free(raw, TRUE);
+}
+
+static void sig_print_format(THEME_REC *theme, const char *module,
+ TEXT_DEST_REC *dest, void *formatnump,
+ char **args)
+{
+ FORMAT_REC *formats;
+ int formatnum, n;
+
+ if (!scrollback_save_formats)
+ return;
+
+ formatnum = GPOINTER_TO_INT(formatnump);
+ formats = g_hash_table_lookup(default_formats, module);
+
+ /* <module><format_name><arg...> */
+ g_string_truncate(format, 0);
+
+ g_string_append_c(format, '\0');
+ g_string_append_c(format, (char)LINE_CMD_FORMAT);
+
+ g_string_append(format, module);
+
+ g_string_append_c(format, '\0');
+ g_string_append_c(format, (char)LINE_CMD_FORMAT);
+
+ g_string_append(format, formats[formatnum].tag);
+
+ for (n = 0; n < formats[formatnum].params; n++) {
+ g_string_append_c(format, '\0');
+ g_string_append_c(format, (char)LINE_CMD_FORMAT);
+
+ g_string_append(format, args[n]);
+ }
+}
+
+static void sig_gui_printtext_finished(WINDOW_REC *window)
+{
+ GUI_WINDOW_REC *gui;
+ LINE_REC *insert_after;
+
+ if (format->len == 0)
+ return;
+
+ /* save format of the line */
+ gui = WINDOW_GUI(window);
+ insert_after = gui->use_insert_after ?
+ gui->insert_after : gui->view->buffer->cur_line;
+
+ textbuffer_insert(gui->view->buffer, insert_after,
+ format->str, format->len, NULL);
+
+ g_string_truncate(format, 0);
+}
+
+static void read_settings(void)
+{
+ scrollback_save_formats = settings_get_bool("scrollback_save_formats");
+}
+
+void textbuffer_reformat_init(void)
+{
+ format = g_string_new(NULL);
+ settings_add_bool("history", "scrollback_save_formats", FALSE);
+
+ read_settings();
+ signal_add("print format", (SIGNAL_FUNC) sig_print_format);
+ signal_add_first("gui print text finished", (SIGNAL_FUNC) sig_gui_printtext_finished);
+ signal_add("setup changed", (SIGNAL_FUNC) read_settings);
+}
+
+void textbuffer_reformat_deinit(void)
+{
+ g_string_free(format, TRUE);
+
+ signal_remove("print format", (SIGNAL_FUNC) sig_print_format);
+ signal_remove("print text finished", (SIGNAL_FUNC) sig_gui_printtext_finished);
+ signal_remove("setup changed", (SIGNAL_FUNC) read_settings);
+}