Reverted the usage of _ for italics (they are causing problems).

doc/snac.5

@@ -24,7 +24,7 @@ A special subset of Markdown is allowed, including:
 .It bold
 **text between two pairs of asterisks**
 .It italic
-*text between a pair of asterisks* or _between a pair of underscores_
+*text between a pair of asterisks*
 .It strikethrough text
 ~~text between a pair of tildes~~
 .It underlined text

format.c

@@ -95,7 +95,6 @@ static xs_str *format_line(const char *line, xs_list **attach)
             "~~[^~]+~~"                         "|"
             "\\*\\*?\\*?[^\\*]+\\*?\\*?\\*"     "|"
             ":.+:"                              "|" //emotes
-            "_[^_]+_"                           "|" //anzu
             "__[^_]+__"                         "|" //anzu
             "!\\[[^]]+\\]\\([^\\)]+\\)"         "|"
             "\\[[^]]+\\]\\([^\\)]+\\)"          "|"
@@ -139,12 +138,6 @@ static xs_str *format_line(const char *line, xs_list **attach)
                 xs *s2 = xs_fmt("<u>%s</u>", s1);
                 s = xs_str_cat(s, s2);
             }
-            else
-            if (xs_startswith(v, "_")) {
-                xs *s1 = xs_strip_chars_i(xs_dup(v), "_");
-                xs *s2 = xs_fmt("<i>%s</i>", s1);
-                s = xs_str_cat(s, s2);
-            }
             //anzu - end
             else
             if (xs_startswith(v, "~~")) {