%option prefix="quote_fmt"
%option outfile="lex.yy.c"
+%s S_NORMAL S_DATE
+
+%{
+/*
+ * see notes below.
+ */
+static int firsttime = 1;
+%}
+
%%
-"%d" /* date */ return SHOW_DATE;
-"%f" /* from */ return SHOW_FROM;
-"%N" /* full name */ return SHOW_FULLNAME;
-"%F" /* first name */ return SHOW_FIRST_NAME;
-"%L" /* last name */ return SHOW_LAST_NAME;
-"%I" /* initial of sender */ return SHOW_SENDER_INITIAL;
-"%s" /* subject */ return SHOW_SUBJECT;
-"%t" /* to */ return SHOW_TO;
-"%c" /* cc */ return SHOW_CC;
-"%n" /* newsgroups */ return SHOW_NEWSGROUPS;
-"%i" /* message-id */ return SHOW_MESSAGEID;
-"%r" /* references */ return SHOW_REFERENCES;
-"%M" /* message */ return SHOW_MESSAGE;
-"%Q" /* quoted message */ return SHOW_QUOTED_MESSAGE;
-"%m" /* message with no signature */ return SHOW_MESSAGE_NO_SIGNATURE;
-"%q" /* quoted message with no signature */ return SHOW_QUOTED_MESSAGE_NO_SIGNATURE;
+%{
+/*
+ * NOTES:
+ * this lex script used to use characters also in use
+ * by strftime() (which we want to use for custom
+ * time formats in replies and templates). to circumvent
+ * this we have to play a little bit with states.
+ *
+ * these are the characters we also want to use in the
+ * %D time customizer:
+ *
+ * %a %A %b %B %c %C %d %H %I %j %m %M %p %S %w %x %y %Y %Z
+ *
+ * you can use these characters too, but don't forget to
+ * prepend them with the <S_NORMAL> state.
+ *
+ * also there is also work around for resetting the state
+ * (firsttime variable). this assumes that yylex() will
+ * always return to S_NORMAL after quote fmt parsing is
+ * done.
+ */
+%}
+
+%{
+ if (firsttime) {
+ BEGIN S_NORMAL;
+ firsttime = 0;
+ }
+%}
+
+<S_NORMAL>"%c" /* cc */ return SHOW_CC;
+<S_NORMAL>"%d" /* date */ return SHOW_DATE;
+<S_NORMAL>"%D" /* date */ { BEGIN S_DATE; return SHOW_DATE_EXPR; }
+<S_NORMAL>"%f" /* from */ return SHOW_FROM;
+<S_NORMAL>"%F" /* first name */ return SHOW_FIRST_NAME;
+<S_NORMAL>"%i" /* message-id */ return SHOW_MESSAGEID;
+<S_NORMAL>"%I" /* initial of sender */ return SHOW_SENDER_INITIAL;
+<S_NORMAL>"%m" /* message with no signature */ return SHOW_MESSAGE_NO_SIGNATURE;
+<S_NORMAL>"%M" /* message */ return SHOW_MESSAGE;
+<S_NORMAL>"%n" /* newsgroups */ return SHOW_NEWSGROUPS;
+<S_NORMAL>"%N" /* full name */ return SHOW_FULLNAME;
+<S_NORMAL>"%L" /* last name */ return SHOW_LAST_NAME;
+<S_NORMAL>"%r" /* references */ return SHOW_REFERENCES;
+<S_NORMAL>"%s" /* subject */ return SHOW_SUBJECT;
+<S_NORMAL>"%t" /* to */ return SHOW_TO;
+<S_NORMAL>"%Q" /* quoted message */ return SHOW_QUOTED_MESSAGE;
+<S_NORMAL>"%q" /* quoted message with no signature */ return SHOW_QUOTED_MESSAGE_NO_SIGNATURE;
"\\\%" /* % */ return SHOW_PERCENT;
"\\\\" /* \ */ return SHOW_BACKSLASH;
"\\t"|"\t" /* tab */ return SHOW_TAB;
"?r" /* query references */ return QUERY_REFERENCES;
"|f" /* insert file */ return INSERT_FILE;
"|p" /* insert program output */ return INSERT_PROGRAMOUTPUT;
-"{" return OPARENT;
-"}" return CPARENT;
+<S_DATE>"{" return OPARENT;
+<S_DATE>"}" { BEGIN S_NORMAL; return CPARENT; }
+<S_NORMAL>"{" return OPARENT;
+<S_NORMAL>"}" return CPARENT;
. { yylval.chr = yytext[0]; return CHARACTER; }
%%