File chappa-fillpara.patch of Package alpine

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File chappa-fillpara.patch of Package alpine (Revision 7f88e99e027abe002294405a5a8f6020)

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diff -rc alpine-2.22/alpine/mailview.c alpine-2.22.fillpara/alpine/mailview.c
*** alpine-2.22/alpine/mailview.c	2020-01-19 01:32:20.102477235 -0700
--- alpine-2.22.fillpara/alpine/mailview.c	2020-05-07 16:46:16.683304031 -0600
***************
*** 204,210 ****
--- 204,218 ----
 int	 pcpine_view_cursor(int, long);
 #endif
 
+ static char *prefix;
+ #define NO_FLOWED 0x0000
+ #define IS_FLOWED 0x0001
+ #define DELETEQUO 0x0010
+ #define COLORAQUO 0x0100
+ #define RAWSTRING 0x1000
 
+ int is_word (char *, int, int);
+ int is_mailbox(char *, int, int);
 
 /*----------------------------------------------------------------------
 Format a buffer with the text of the current message for browser
***************
*** 295,300 ****
--- 303,319 ----
 	else
 	 ps->unseen_in_view = !mc->seen;
 
+ 	prefix = reply_quote_str(env);
+ 	/* Make sure the prefix is not only made of spaces, so that we do not
+ 	 * paint the screen incorrectly
+ 	 */
+ 	if (prefix && *prefix){
+ 	 int i;
+ 	 for (i = 0; isspace((unsigned char) prefix[i]); i++);
+ 	 if (i == strlen(prefix))
+ 	 fs_give((void **)&prefix);
+ 	}
+ 
 	init_handles(&handles);
 
 	store = so_get(src, NULL, EDIT_ACCESS);
***************
*** 479,484 ****
--- 498,505 ----
 }
 while(ps->next_screen == SCREEN_FUN_NULL);
 
+ if (prefix && *prefix)
+ fs_give((void **)&prefix);
 if(we_cancel)
 cancel_busy_cue(-1);
 
diff -rc alpine-2.22/pico/basic.c alpine-2.22.fillpara/pico/basic.c
*** alpine-2.22/pico/basic.c	2020-01-19 01:32:18.272513938 -0700
--- alpine-2.22.fillpara/pico/basic.c	2020-05-07 16:46:16.691304036 -0600
***************
*** 26,34 ****
 * framing, are hard.
 */
 #include "headers.h"
! 
 #include "osdep/terminal.h"
 
 
 /*
 * Move the cursor to the
--- 26,35 ----
 * framing, are hard.
 */
 #include "headers.h"
! #include	"../pith/osdep/color.h"
 #include "osdep/terminal.h"
 
+ int	indent_match(char **, LINE *, char *, int, int);
 
 /*
 * Move the cursor to the
***************
*** 285,291 ****
 gotobop(int f, int n)
 {
 int quoted, qlen;
! UCS qstr[NLINE], qstr2[NLINE];
 
 if (n < 0)	/* the other way...*/
 return(gotoeop(f, -n));
--- 286,292 ----
 gotobop(int f, int n)
 {
 int quoted, qlen;
! char qstr[NLINE], qstr2[NLINE], ind_str[NLINE], pqstr[NLINE];;
 
 if (n < 0)	/* the other way...*/
 return(gotoeop(f, -n));
***************
*** 297,302 ****
--- 298,311 ----
 	 curwp->w_dotp = lback(curwp->w_dotp);
 	 curwp->w_doto = 0;
 	}
+ 
+ 	if (indent_match(default_qstr(glo_quote_str, 1), curwp->w_dotp,ind_str, NLINE, 0)){
+ 	 if (n){ /* look for another paragraph ? */
+ 	 curwp->w_dotp = lback(curwp->w_dotp);
+ 	 continue;
+ 	 }
+ 	 break;
+ 	}
 	
 	/* scan line by line until we come to a line ending with
 	 * a <NL><NL> or <NL><TAB> or <NL><SPACE>
***************
*** 304,321 ****
 	 * PLUS: if there's a quote string, a quoted-to-non-quoted
 	 *	 line transition.
 	 */
! 	quoted = quote_match(glo_quote_str, curwp->w_dotp, qstr, NLINE);
! 	qlen = quoted ? ucs4_strlen(qstr) : 0;
 	while(lback(curwp->w_dotp) != curbp->b_linep
 	 && llength(lback(curwp->w_dotp)) > qlen
! 	 && quoted == quote_match(glo_quote_str,
 					 lback(curwp->w_dotp),
! 					 qstr2, NLINE)
! 	 && !ucs4_strcmp(qstr, qstr2)
! 	 && lgetc(curwp->w_dotp, qlen).c != TAB
! 	 && lgetc(curwp->w_dotp, qlen).c != ' ')
 	 curwp->w_dotp = lback(curwp->w_dotp);
 
 	if(n){
 	 /* keep looking */
 	 if(lback(curwp->w_dotp) == curbp->b_linep)
--- 313,371 ----
 	 * PLUS: if there's a quote string, a quoted-to-non-quoted
 	 *	 line transition.
 	 */
! 	quoted = quote_match(default_qstr(glo_quote_str, 1), curwp->w_dotp, qstr, NLINE, 0);
! 	qlen = quoted ? strlen(qstr) : 0;
 	while(lback(curwp->w_dotp) != curbp->b_linep
 	 && llength(lback(curwp->w_dotp)) > qlen
! 	 && (quoted == quote_match(default_qstr(glo_quote_str, 1),
 					 lback(curwp->w_dotp),
! 					 qstr2, NLINE, 0))
! 	 && !strcmp(qstr, qstr2) /* processed string */
! 	 && (quoted == quote_match(default_qstr(glo_quote_str, 1),
! 			lback(curwp->w_dotp), qstr2, NLINE, 1))
! 	 && !strcmp(qstr, qstr2) /* raw string */
! 	 && !indent_match(default_qstr(glo_quote_str, 1),
! 			lback(curwp->w_dotp),ind_str, NLINE, 0)
! 	 && !ISspace(lgetc(curwp->w_dotp, qlen).c))
 	 curwp->w_dotp = lback(curwp->w_dotp);
 
+ 	 /*
+ 	 * Ok, we made it here and we assume that we are at the begining
+ 	 * of the paragraph. Let's double check this now. In order to do
+ 	 * so we shell check if the first line was indented in a special
+ 	 * way.
+ 	 */
+ 	if(lback(curwp->w_dotp) == curbp->b_linep)
+ 	 break;
+ 	else{
+ 	 int i, j;
+ 
+ 	 /*
+ 	 * First we test if the preceding line is indented.
+ 	 * for the following test we need to have the raw values,
+ 	 * not the processed values
+ 	 */
+ 	 quote_match(default_qstr(glo_quote_str, 1), curwp->w_dotp, qstr, NLINE, 1);
+ 	 quote_match(default_qstr(glo_quote_str, 1), lback(curwp->w_dotp), qstr2, NLINE, 1);
+ 	 for (i = 0, j = 0;
+ 	 qstr[i] && qstr2[i] && (qstr[i] == qstr2[i]); i++, j++);
+ 	 for (; ISspace(qstr2[i]); i++);
+ 	 for (; ISspace(qstr[j]); j++);
+ 	 if ((indent_match(default_qstr(glo_quote_str, 1), lback(curwp->w_dotp),
+ 						ind_str, NLINE, 1)
+ 	 && (strlenis(qstr2) 
+ 			+ strlenis(ind_str) >= strlenis(qstr)))
+ 	 || (lback(curwp->w_dotp) != curbp->b_linep
+ 	 && llength(lback(curwp->w_dotp)) > qlen
+ 	 && (quoted == quote_match(default_qstr(glo_quote_str, 1),
+ 				lback(curwp->w_dotp), pqstr, NLINE, 0))
+ 		 && !strcmp(qstr, pqstr)
+ 		 && !ISspace(lgetc(curwp->w_dotp, qlen).c)
+ 		 && (strlenis(qstr2) > strlenis(qstr)))
+ 	 && !qstr2[i] && !qstr[j])
+ 		curwp->w_dotp = lback(curwp->w_dotp);
+ 	}
+ 
 	if(n){
 	 /* keep looking */
 	 if(lback(curwp->w_dotp) == curbp->b_linep)
***************
*** 328,334 ****
 	else{
 	 /* leave cursor on first word in para */
 	 curwp->w_doto = 0;
! 	 while(ucs4_isspace(lgetc(curwp->w_dotp, curwp->w_doto).c))
 	 if(++curwp->w_doto >= llength(curwp->w_dotp)){
 		 curwp->w_doto = 0;
 		 curwp->w_dotp = lforw(curwp->w_dotp);
--- 378,384 ----
 	else{
 	 /* leave cursor on first word in para */
 	 curwp->w_doto = 0;
! 	 while(ISspace(lgetc(curwp->w_dotp, curwp->w_doto).c))
 	 if(++curwp->w_doto >= llength(curwp->w_dotp)){
 		 curwp->w_doto = 0;
 		 curwp->w_dotp = lforw(curwp->w_dotp);
***************
*** 351,358 ****
 int
 gotoeop(int f, int n)
 {
! int quoted, qlen;
! UCS qstr[NLINE], qstr2[NLINE];
 
 if (n < 0)	/* the other way...*/
 return(gotobop(f, -n));
--- 401,409 ----
 int
 gotoeop(int f, int n)
 {
! int quoted, qlen, indented, changeqstr = 0;
! int i,j, fli = 0; /* fli = first line indented a boolean variable */
! char qstr[NLINE], qstr2[NLINE], ind_str[NLINE];
 
 if (n < 0)	/* the other way...*/
 return(gotobop(f, -n));
***************
*** 365,388 ****
 	 break;
 	}
 
! 	/* scan line by line until we come to a line ending with
! 	 * a <NL><NL> or <NL><TAB> or <NL><SPACE>
! 	 *
! 	 * PLUS: if there's a quote string, a quoted-to-non-quoted
! 	 *	 line transition.
 	 */
! 	quoted = quote_match(glo_quote_str,
! 			curwp->w_dotp, qstr, NLINE);
! 	qlen = quoted ? ucs4_strlen(qstr) : 0;
 	
 	while(curwp->w_dotp != curbp->b_linep
 	 && llength(lforw(curwp->w_dotp)) > qlen
! 	 && (quoted == quote_match(glo_quote_str,
! 					 lforw(curwp->w_dotp),
! 					 qstr2, NLINE)
! 		 && !ucs4_strcmp(qstr, qstr2))
! 	 && lgetc(lforw(curwp->w_dotp), qlen).c != TAB
! 	 && lgetc(lforw(curwp->w_dotp), qlen).c != ' ')
 	 curwp->w_dotp = lforw(curwp->w_dotp);
 
 	curwp->w_doto = llength(curwp->w_dotp);
--- 416,485 ----
 	 break;
 	}
 
! 	/*
! 	 * We need to figure out if this line is the first line of
! 	 * a paragraph that has been indented in a special way. If this
! 	 * is the case, we advance one more line before we use the
! 	 * algorithm below
! 	 */
! 
! 	if(curwp->w_dotp != curbp->b_linep){
! 	 quote_match(default_qstr(glo_quote_str, 1), curwp->w_dotp, qstr, NLINE, 1);
! 	 quote_match(default_qstr(glo_quote_str, 1), lforw(curwp->w_dotp), qstr2, NLINE, 1);
! 	 indented = indent_match(default_qstr(glo_quote_str, 1), curwp->w_dotp, ind_str,
! 							NLINE, 1);
! 	 if (strlenis(qstr) 
! 		+ strlenis(ind_str) < strlenis(qstr2)){
! 		curwp->w_doto = llength(curwp->w_dotp);
! 		if(n){ /* this line is a paragraph by itself */
! 		 curwp->w_dotp = lforw(curwp->w_dotp);
! 		 continue;
! 		}
! 		break;
! 	 }
! 	 for (i=0,j=0; qstr[i] && qstr2[i] && (qstr[i] == qstr2[i]);i++,j++);
! 	 for (; ISspace(qstr[i]); i++);
! 	 for (; ISspace(qstr2[j]); j++);
! 	 if (!qstr[i] && !qstr2[j] && indented){
! 		fli++;
! 		if (indent_match(default_qstr(glo_quote_str, 1), lforw(curwp->w_dotp),
! 					ind_str, NLINE, 0)){
! 		 if (n){ /* look for another paragraph ? */
! 		 curwp->w_dotp = lforw(curwp->w_dotp);
! 		 continue;
! 		 }
! 		}
! 		else{
! 		 if (!lisblank(lforw(curwp->w_dotp)))
! 		 curwp->w_dotp = lforw(curwp->w_dotp);
! 		}
! 	 }
! 	}
! 
! 	/* scan line by line until we come to a line ending with
! 	 * a <NL><NL> or <NL><TAB> or <NL><SPACE>
! 	 *
! 	 * PLUS: if there's a quote string, a quoted-to-non-quoted
! 	 *	 line transition.
! 	 */
! 	/* if the first line is indented (fli == 1), then the test below
! 	 is on the second line, and in that case we will need the raw
! 	 string, not the processed string
 	 */
! 	quoted = quote_match(default_qstr(glo_quote_str, 1), curwp->w_dotp, qstr, NLINE, fli);
! 	qlen = quoted ? strlen(qstr) : 0;
 	
 	while(curwp->w_dotp != curbp->b_linep
 	 && llength(lforw(curwp->w_dotp)) > qlen
! 	 && (quoted == quote_match(default_qstr(glo_quote_str, 1),
! 				lforw(curwp->w_dotp), qstr2, NLINE, fli))
! 	 && !strcmp(qstr, qstr2)
! 	 && (quoted == quote_match(default_qstr(glo_quote_str, 1),
! 				lforw(curwp->w_dotp), qstr2, NLINE, 1))
! 	 && !strcmp(qstr, qstr2)
! 	 && !indent_match(default_qstr(glo_quote_str, 1),
! 				lforw(curwp->w_dotp), ind_str, NLINE, 0)
! 	 && !ISspace(lgetc(lforw(curwp->w_dotp), qlen).c))
 	 curwp->w_dotp = lforw(curwp->w_dotp);
 
 	curwp->w_doto = llength(curwp->w_dotp);
diff -rc alpine-2.22/pico/efunc.h alpine-2.22.fillpara/pico/efunc.h
*** alpine-2.22/pico/efunc.h	2020-01-19 01:32:18.308513213 -0700
--- alpine-2.22.fillpara/pico/efunc.h	2020-05-07 16:46:16.691304036 -0600
***************
*** 253,262 ****
 extern	int fillpara(int, int);
 extern	int fillbuf(int, int);
 extern	int inword(void);
! extern	int quote_match(UCS *, LINE *, UCS *, size_t);
 extern	int ucs4_isalnum(UCS);
 extern	int ucs4_isalpha(UCS);
 extern	int ucs4_isspace(UCS);
 extern	int ucs4_ispunct(UCS);
 
 #endif	/* EFUNC_H */
--- 253,268 ----
 extern	int fillpara(int, int);
 extern	int fillbuf(int, int);
 extern	int inword(void);
! extern	int quote_match(char **, LINE *, char *, size_t, int);
! extern	void flatten_qstring(QSTRING_S *, char *, int);
! extern	void free_qs(QSTRING_S **);
! extern	QSTRING_S *do_quote_match (char **, char *, char *, char *, char *, int, int);
! extern	QSTRING_S *do_raw_quote_match(char **, char *, char *, char *, QSTRING_S **, QSTRING_S **);
! extern int indent_match(char **, LINE *, char *, int, int);
 extern	int ucs4_isalnum(UCS);
 extern	int ucs4_isalpha(UCS);
 extern	int ucs4_isspace(UCS);
 extern	int ucs4_ispunct(UCS);
 
 #endif	/* EFUNC_H */
+ 
diff -rc alpine-2.22/pico/line.c alpine-2.22.fillpara/pico/line.c
*** alpine-2.22/pico/line.c	2020-01-19 01:32:18.308513213 -0700
--- alpine-2.22.fillpara/pico/line.c	2020-05-07 16:46:16.691304036 -0600
***************
*** 612,627 ****
 lisblank(LINE *line)
 {
 int n = 0;
! UCS qstr[NLINE];
 
! n = (glo_quote_str
! 	 && quote_match(glo_quote_str, line, qstr, NLINE))
! 	 ? ucs4_strlen(qstr) : 0;
 
 for(; n < llength(line); n++)
! if(!ucs4_isspace(lgetc(line, n).c) 
! 	 || lgetc(line, n).c >= 0xff 
! 	 || (unsigned char) lgetc(line,n).c != NBSPC)
 	return(FALSE);
 
 return(TRUE);
--- 612,623 ----
 lisblank(LINE *line)
 {
 int n = 0;
! char qstr[NLINE];
 
! n = quote_match(default_qstr(glo_quote_str, 1), line, qstr, NLINE, 1);
 
 for(; n < llength(line); n++)
! if(!ISspace(lgetc(line, n).c))
 	return(FALSE);
 
 return(TRUE);
diff -rc alpine-2.22/pico/osdep/color.h alpine-2.22.fillpara/pico/osdep/color.h
*** alpine-2.22/pico/osdep/color.h	2020-01-19 01:32:18.174515911 -0700
--- alpine-2.22.fillpara/pico/osdep/color.h	2020-05-07 16:46:16.695304038 -0600
***************
*** 33,38 ****
--- 33,39 ----
 void	 pico_toggle_color(int);
 void	 pico_set_nfg_color(void);
 void	 pico_set_nbg_color(void);
+ char	 **default_qstr(void *, int);
 
 
 #endif /* PICO_OSDEP_COLOR_INCLUDED */
diff -rc alpine-2.22/pico/search.c alpine-2.22.fillpara/pico/search.c
*** alpine-2.22/pico/search.c	2020-01-19 01:32:18.347512428 -0700
--- alpine-2.22.fillpara/pico/search.c	2020-05-07 16:46:16.695304038 -0600
***************
*** 36,41 ****
--- 36,42 ----
 int readpattern(char *, int, int);
 int replace_pat(UCS *, int *, int);
 int replace_all(UCS *, UCS *, int);
+ int	deletepara(int, int);
 void	reverse_line(LINE *);
 void	reverse_buffer(void);
 void	reverse_ucs4(UCS *);
***************
*** 71,77 ****
 	{"^W", N_("Start of Para"), (CTRL|'W')},
 	{"^O", N_("End of Para"), (CTRL|'O')},
 	{"^U", N_("FullJustify"), (CTRL|'U')},
! 	{NULL, NULL, 0},
 	{NULL, NULL, 0}
 };
 
--- 72,78 ----
 	{"^W", N_("Start of Para"), (CTRL|'W')},
 	{"^O", N_("End of Para"), (CTRL|'O')},
 	{"^U", N_("FullJustify"), (CTRL|'U')},
! 	{"^P", N_("Delete Para"), (CTRL|'P')},
 	{NULL, NULL, 0}
 };
 
***************
*** 220,228 ****
 
 	 case (CTRL|'P'):
 	 if(flags & SR_ORIGMEN){
! 		/* Undefined still */
 	 }
! 	 if(flags & SR_OPTNMEN){
 	 if(flags & SR_FORWARD){
 		flags &= ~SR_FORWARD;
 		flags |= SR_BACKWRD;
--- 221,231 ----
 
 	 case (CTRL|'P'):
 	 if(flags & SR_ORIGMEN){
! 	 deletepara(0, 1);
! 	 mlerase();
! 	 FWS_RETURN(TRUE);
 	 }
! 	 else if(flags & SR_OPTNMEN){
 	 if(flags & SR_FORWARD){
 		flags &= ~SR_FORWARD;
 		flags |= SR_BACKWRD;
***************
*** 1420,1422 ****
--- 1423,1447 ----
 if(bsearch) reverse_ucs4(orig);
 return utf8;
 }
+ 
+ int
+ deletepara(int f, int n) /* Delete the current paragraph */
+ {
+ if(curbp->b_mode&MDVIEW) /* don't allow this command if */ 
+ return(rdonly()); /* we are in read only mode */
+ 
+ if(!lisblank(curwp->w_dotp))
+ gotobop(FALSE, 1);
+ 
+ curwp->w_markp = curwp->w_dotp;
+ curwp->w_marko = 0;
+ 
+ gotoeop(FALSE, 1);
+ if (curwp->w_dotp != curbp->b_linep){ /* if we are not at the end of buffer */
+ curwp->w_dotp = lforw(curwp->w_dotp); /* get one more line */
+ curwp->w_doto = 0; /* but only the beginning */
+ }
+ killregion(f,n);
+ return(TRUE);
+ }
+ 
diff -rc alpine-2.22/pico/word.c alpine-2.22.fillpara/pico/word.c
*** alpine-2.22/pico/word.c	2020-01-19 01:32:18.244514502 -0700
--- alpine-2.22.fillpara/pico/word.c	2020-05-07 16:46:16.695304038 -0600
***************
*** 25,34 ****
 */
 
 #include	"headers.h"
! 
 
 int fpnewline(UCS *quote);
! int fillregion(UCS *qstr, REGION *addedregion);
 int setquotelevelinregion(int quotelevel, REGION *addedregion);
 int is_user_separator(UCS c);
 
--- 25,34 ----
 */
 
 #include	"headers.h"
! #include	"../pith/osdep/color.h"
 
 int fpnewline(UCS *quote);
! int fillregion(UCS *qstr, UCS *istr, REGION *addedregion);
 int setquotelevelinregion(int quotelevel, REGION *addedregion);
 int is_user_separator(UCS c);
 
***************
*** 431,555 ****
 return 0;
 }
 
! void
! do_quote_match(UCS *q, LINE *l, UCS *buf, size_t buflen)
! {
! register int i, j;
! int qstart, qend, k;
! 
! /* 
! * The method for determining the quote string is:
! * 1) strip leading and trailing whitespace from q 
! * 2) add all leading whitespace to buf
! * 3) check for q
! * 4) if q, append q to buf and any trailing whitespace
! * 5) repeat steps 3 and 4 as necessary
! *
! * q in the future could be made to be an array of (UCS *)'s
! * (">" and whatever the user's quote_string is)
! */
! 
! *buf = '\0';
 
! if(l == NULL)
! return;
 
! /* count leading whitespace as part of the quote */
! for(j = 0; j <= llength(l) && lgetc(l, j).c == ' ' && j+1 < buflen; j++)
! buf[j] = lgetc(l, j).c;
! buf[j] = '\0'; 
! 
! if(q == NULL || *q == '\0')
! return;
! 
! /* pare down q so it contains no leading or trailing whitespace */
! for(i = 0; q[i] == ' '; i++);
! qstart = i;
! for(i = ucs4_strlen(q); i > 0 && q[i-1] == ' '; i--);
! qend = i;
! 
! /* for quote strings that are blanks, chop buf to the length of q */
! if(qend <= qstart){
! if(ucs4_strlen(q) < buflen)
! 	buf[ucs4_strlen(q)] = '\0';
! return;
! }
! 
! while(j <= llength(l)){
! for(i = qstart; j <= llength(l) && i < qend; i++, j++)
! if(q[i] != lgetc(l, j).c)
! return;
! 
! if(i >= qend){
! if(ucs4_strlen(buf) + qend - qstart < (buflen - 1))
! ucs4_strncat(buf, q + qstart, qend - qstart);
! } 
! 
! /*
! * if we're this far along, we've matched a quote string,
! * and should now add the following white space.
! */
! for(k = ucs4_strlen(buf);
! 		j <= llength(l) && lgetc(l,j).c == ' ' && (k + 1 < buflen);
! j++, k++){
! buf[k] = lgetc(l,j).c;
! }
! buf[k] = '\0';
! 
! if(j > llength(l))
! return;
! }
 }
 
 /*
 * Return number of quotes if whatever starts the line matches the quote string
 */
 int
! quote_match(UCS *q, LINE *gl, UCS *bufl, size_t buflen)
 {
! LINE *nl = gl != curbp->b_linep ? lforw(gl) : NULL;
! LINE *pl = lback(gl) != curbp->b_linep ? lback(gl) : NULL;
! UCS bufp[NSTRING], bufn[NSTRING];
! int i, j, qstart, qend;
! int quoted_line = 0;
! 
! do_quote_match(q, pl, bufp, sizeof(bufp));	/* previous line */
! do_quote_match(q, gl, bufl, buflen);	/* given line	 */
! do_quote_match(q, nl, bufn, sizeof(bufn));	/* next line	 */
! 
! if(!ucs4_strcmp(bufp, bufl) || !ucs4_strcmp(bufl, bufn))
! return ucs4_strlen(bufl);
! 
! /* is this line quoted? */
! if(q && *q){
! /* pare down q so it contains no leading or trailing whitespace */
! for(i = 0; q[i] == ' '; i++);
! qstart = i;
! for(i = ucs4_strlen(q); i > 0 && q[i-1] == ' '; i--);
! qend = i;
! for(i = 0; i < llength(gl) 
! 		 && i + qstart < qend 
! 		 && lgetc(gl, i).c == q[i+qstart]; i++);
! if(i + qstart == qend)
! quoted_line = 1;
! }
! 
! /* compare bufl and bufn */
! for(i = 0; bufl[i] && bufn[i] && bufl[i] == bufn[i]; i++);
! 
! /* go back to last non-space character */
! for(; i > 0 && bufl[i-1] == ' '; i--);
! 
! /* do bufl and bufn differ only in spaces? */
! for(j = i; bufl[j] && bufl[j] == ' '; j++);
! 
! /* if they differ only on trailing spaces, chop bufl to agree with bufn */
! if (!bufl[j] )
! bufl[Pmaster && quoted_line ? (j > i ? i+1 : i) : i] = '\0';
 
! return ucs4_strlen(bufl);
 }
 
 
 /* Justify the entire buffer instead of just a paragraph */
 int
--- 431,595 ----
 return 0;
 }
 
! /* Support of indentation of paragraphs */
! #define is_indent_char(c) (((c) == '.' || (c) == '}' || (c) == RPAREN || \
! 			 (c) == '*' || (c) == '+' || is_a_digit(c) || \
! 			 ISspace(c) || (c) == '-' || \
! 			 (c) == ']') ? 1 : 0)
! #define allowed_after_digit(c,word,k) ((((c) == '.' && \
! 			 allowed_after_period(next((word),(k)))) ||\
! 				(c) == RPAREN || (c) == '}' || (c) == ']' ||\
! 				 ISspace(c) || is_a_digit(c) || \
! 				 ((c) == '-' ) && \
! 				 allowed_after_dash(next((word),(k)))) \
! 				? 1 : 0)
! #define allowed_after_period(c)	 (((c) == RPAREN || (c) == '}' || (c) == ']' ||\
! 				 ISspace(c) || (c) == '-' || \
! 				 is_a_digit(c)) ? 1 : 0)
! #define allowed_after_parenth(c) (ISspace(c) ? 1 : 0)
! #define allowed_after_space(c)	 (ISspace(c) ? 1 : 0)
! #define allowed_after_braces(c)	 (ISspace(c) ? 1 : 0)
! #define allowed_after_star(c)	 ((ISspace(c) || (c) == RPAREN ||\
! (c) == ']' || (c) == '}') ? 1 : 0)
! #define allowed_after_dash(c)	 ((ISspace(c) || is_a_digit(c)) ? 1 : 0)
! #define EOLchar(c)		 (((c) == '.' || (c) == ':' || (c) == '?' ||\
! 					(c) == '!') ? 1 : 0)
! 
! int indent_match(char **, LINE *, char *, int, int);
! 
! /* Extended justification support */
! #define is_cquote(c) ((c) == '>' || (c) == '|' || (c) == ']' || (c) == ':')
! #define is_cword(c) ((((c) >= 'a') && ((c) <= 'z')) || \
! (((c) >= 'A') && ((c) <= 'Z')) || \
! (((c) >= '0') && ((c) <= '9')) || \
! ((c) == ' ') || ((c) == '?') || \
! ((c) == '@') || ((c) == '.') || \
! ((c) == '!') || ((c) == '\'') || \
! ((c) == ',') || ((c) == '\"') ? 1 : 0)
! #define isaquote(c) ((c) == '\"' || (c) == '\'')
! #define is8bit(c) ((((int) (c)) & 0x80) ? 1 : 0)
! #define iscontrol(c) (iscntrl(((int) (c)) & 0x7f) ? 1 : 0)
! #define forbidden(c) (((c) == '\"') || ((c) == '\'') || ((c) == '$') ||\
! ((c) == ',') || ((c) == '.') || ((c) == '-') ||\
! ((c) == LPAREN) || ((c) == '/')|| ((c) == '`') ||\
! ((c) == '{') || ((c) == '\\') || (iscontrol((c))) ||\
! (((c) >= '0') && ((c) <= '9')) || ((c) == '?'))
! #define is_cletter(c) ((((c) >= 'a') && ((c) <= 'z'))) ||\
! ((((c) >= 'A') && ((c) <= 'Z'))||\
! is8bit(c))
! #define is_cnumber(c) ((c) >= '0' && (c) <= '9')
! #define allwd_after_word(c) (((c) == ' ') || ((c) == '>') || is_cletter(c))
! #define allwd_after_qsword(c) (((c) != '\\') && ((c) != RPAREN) && ((c) != '/'))
! #define before(word,i) (((i) > 0) ? (word)[(i) - 1] : 0)
! #define next(w,i) ((((w)[(i)]) != 0) ? ((w)[(i) + 1]) : 0)
! #define now(w,i) ((w)[(i)])
! #define is_qsword(c) (((c) == ':') || ((c) == RPAREN) ? 1 : 0)
! #define is_colon(c) (((c) == ':') ? 1 : 0)
! #define is_rarrow(c) (((c) == '>') ? 1 : 0)
! #define is_tilde(c) (((c) == '~') ? 1 : 0)
! #define is_dash(c) (((c) == '-') ? 1 : 0)
! #define is_pound(c) (((c) == '#') ? 1 : 0)
! #define is_a_digit(c) ((((c) >= '0') && ((c) <= '9')) ? 1 : 0)
! #define is_allowed(c) (is_cquote(c) || is_cword(c) || is_dash(c) || \
! is_pound(c))
! #define qs_allowed(a) (((a)->qstype != qsGdb) && ((a)->qstype != qsProg))
! 
! /* Internal justification functions */
! QSTRING_S *qs_quote_match(char **, LINE *, char *, int);
! int	ucs4_widthis(UCS *);
! int ucs4_strlenis(UCS *);
! void linencpy(char *, LINE *, int);
 
! void
! linencpy(word, l, buflen)
! char word[NSTRING];
! LINE *l;
! int buflen;
! {
! int i;
! UCS ucs_word[NSTRING];
! char *utf_word;
! 
! word[0] = '\0';
! if(l){
! for (i = 0; i < buflen && i < llength(l)
! && (ucs_word[i] = lgetc(l,i).c); i++);
! ucs_word[i == buflen ? i-1 : i] = '\0';
! utf_word = ucs4_to_utf8_cpystr(ucs_word);
! strncpy(word, utf_word, (NSTRING < buflen ? NSTRING : buflen));
! word[NSTRING-1] = '\0';
! if(utf_word) fs_give((void **)&utf_word);
! }
! }
! 
! /*
! * This function returns the quote string as a structure. In this way we
! * have two ways to get the quote string: as a char * or as a QSTRING_S *
! * directly.
! */
! QSTRING_S *
! qs_quote_match(char **q, LINE *l, char *rqstr, int rqstrlen)
! {
! char GLine[NSTRING], NLine[NSTRING], PLine[NSTRING];
! LINE *nl = l != curbp->b_linep ? lforw(l) : NULL;
! LINE *pl = lback(l) != curbp->b_linep ? lback(l) : NULL;
! int plb = 1;
! 
! linencpy(GLine, l, NSTRING);
! linencpy(NLine, nl, NSTRING);
! 
! if (pl){
! linencpy(PLine, pl, NSTRING);
! if(lback(pl) != curbp->b_linep){
! 	char PPLine[NSTRING];
 
! 	linencpy(PPLine, lback(pl), NSTRING);
! 	plb = line_isblank(q, PLine, GLine, PPLine, NSTRING);
! }
! }
! return do_quote_match(q, GLine, NLine, PLine, rqstr, rqstrlen, plb);
 }
 
 /*
 * Return number of quotes if whatever starts the line matches the quote string
+ * rqstr is a pointer to raw qstring; buf points to processed qstring
 */
 int
! quote_match(char **q, LINE *l, char *buf, size_t buflen, int raw)
 {
! QSTRING_S *qs;
! char rqstr[NSTRING];
 
! qs = qs_quote_match(q, l, rqstr, NSTRING);
! if(qs)
! 	record_quote_string(qs);
! flatten_qstring(qs, buf, buflen);
! if (qs) free_qs(&qs);
! 
! if(raw){
! strncpy(buf, rqstr, buflen < NSTRING ? buflen : NSTRING);
! buf[buflen-1] = '\0';
! }
! 
! return buf && buf[0] ? strlen(buf) : 0;
 }
 
+ int ucs4_widthis(UCS *ucstr)
+ {
+ int i, rv = 0;
+ for (i = 0; ucstr && ucstr[i]; i++)
+ rv += ((ucstr[i] == TAB) ? (~rv & 0x07) + 1 : wcellwidth((UCS) ucstr[i]));
+ return rv;
+ }
+ 
+ int ucs4_strlenis(UCS *ucs_qstr)
+ {
+ char *str = ucs4_to_utf8_cpystr(ucs_qstr);
+ int i = (int) strlenis(str);
+ 
+ if(str) fs_give((void **)&str);
+ return i;
+ }
 
 /* Justify the entire buffer instead of just a paragraph */
 int
***************
*** 804,809 ****
--- 844,850 ----
 }
 
 if(action == 'R' && curwp->w_markp){
+ 	char qstrfl[NSTRING];
 	/* let yank() know that it may be restoring a paragraph */
 	thisflag |= CFFILL;
 
***************
*** 815,835 ****
 	swap_mark_and_dot_if_mark_comes_first();
 
 	/* determine if we're justifying quoted text or not */
! 	qstr = quote_match(glo_quote_str, 
! 			curwp->w_doto > 0 ? curwp->w_dotp->l_fp : curwp->w_dotp,
! 			qstr2, NSTRING)
! 		&& *qstr2 ? qstr2 : NULL;
! 
 
 	/*
 	 * Fillregion moves dot to the end of the filled region.
 	 */
! 	if(!fillregion(qstr, &addedregion))
 	 return(FALSE);
 
 	set_last_region_added(&addedregion);
! }
! else if(action == 'P'){
 
 	/*
 	 * Justfiy the current paragraph.
--- 856,881 ----
 	swap_mark_and_dot_if_mark_comes_first();
 
 	/* determine if we're justifying quoted text or not */
! 	qstr = (glo_quote_str
! 		&& quote_match(default_qstr(glo_quote_str, 1), 
! 			 (curwp->w_doto > 0 ? curwp->w_dotp->l_fp : curwp->w_dotp),
! 			 qstrfl, NSTRING, 0)
! 		&& *qstrfl) ? utf8_to_ucs4_cpystr(qstrfl) : NULL;
 
 	/*
 	 * Fillregion moves dot to the end of the filled region.
 	 */
! 	if(!fillregion(qstr, NULL, &addedregion))
 	 return(FALSE);
 
 	set_last_region_added(&addedregion);
! 
! 	if(qstr)
! 	 fs_give((void **)&qstr);
! }
! else if(action == 'P'){
! 	char ind_str[NSTRING], qstrfl[NSTRING];
! 	UCS *istr;
 
 	/*
 	 * Justfiy the current paragraph.
***************
*** 841,856 ****
 	if(gotoeop(FALSE, 1) == FALSE)
 	 return(FALSE);
 
- 	/* determine if we're justifying quoted text or not */
- 	qstr = quote_match(glo_quote_str, 
- 			 curwp->w_dotp, qstr2, NSTRING)
- 		&& *qstr2 ? qstr2 : NULL;
- 
 	setmark(0,0);			/* mark last line of para */
 
 	/* jump back to the beginning of the paragraph */
 	gotobop(FALSE, 1);
 
 	/* let yank() know that it may be restoring a paragraph */
 	thisflag |= (CFFILL | CFFLPA);
 
--- 887,902 ----
 	if(gotoeop(FALSE, 1) == FALSE)
 	 return(FALSE);
 
 	setmark(0,0);			/* mark last line of para */
 
 	/* jump back to the beginning of the paragraph */
 	gotobop(FALSE, 1);
 
+ 	istr = indent_match(default_qstr(glo_quote_str, 1), curwp->w_dotp, ind_str, NSTRING, 0)
+ 	 && *ind_str ? utf8_to_ucs4_cpystr(ind_str) : NULL;
+ 	qstr = (quote_match(default_qstr(glo_quote_str, 1), curwp->w_dotp, qstrfl, NSTRING, 0)
+ && *qstrfl) ? utf8_to_ucs4_cpystr(qstrfl) : NULL;
+ 
 	/* let yank() know that it may be restoring a paragraph */
 	thisflag |= (CFFILL | CFFLPA);
 
***************
*** 864,872 ****
 	/*
 	 * Fillregion moves dot to the end of the filled region.
 	 */
! 	if(!fillregion(qstr, &addedregion))
 	 return(FALSE);
 
 	set_last_region_added(&addedregion);
 
 	/* Leave cursor on first char of first line after justified region */
--- 910,924 ----
 	/*
 	 * Fillregion moves dot to the end of the filled region.
 	 */
! 	if(!fillregion(qstr, istr, &addedregion))
 	 return(FALSE);
 
+ 	if(qstr)
+ 	 fs_give((void **)&qstr);
+ 
+ 	if(istr)
+ 	 fs_give((void **)&istr);
+ 
 	set_last_region_added(&addedregion);
 
 	/* Leave cursor on first char of first line after justified region */
***************
*** 908,923 ****
 * can delete it and restore the saved part.
 */
 int
! fillregion(UCS *qstr, REGION *addedregion)
 {
 long c, sz, last_char = 0;
! int	 i, j, qlen, same_word,
 	 spaces, word_len, word_ind, line_len, ww;
 int starts_midline = 0;
 int ends_midline = 0;
 int offset_into_start;
 LINE *line_before_start, *lp;
! UCS line_last, word[NSTRING];
 REGION region;
 
 /* if region starts midline insert a newline */
--- 960,975 ----
 * can delete it and restore the saved part.
 */
 int
! fillregion(UCS *qstr, UCS *istr, REGION *addedregion)
 {
 long c, sz, last_char = 0;
! int	 i, j, qlen, same_word, qi, pqi, qlenis,
 	 spaces, word_len, word_ind, line_len, ww;
 int starts_midline = 0;
 int ends_midline = 0;
 int offset_into_start;
 LINE *line_before_start, *lp;
! UCS line_last, word[NSTRING], quoid[NSTRING], qstr2[NSTRING];
 REGION region;
 
 /* if region starts midline insert a newline */
***************
*** 928,933 ****
--- 980,1014 ----
 if(curwp->w_marko > 0 && curwp->w_marko < llength(curwp->w_markp))
 ends_midline++;
 
+ for (i = 0; (i < NSTRING) && qstr && (quoid[i] = qstr[i]); i++);
+ for (j = 0; ((i + j) < NSTRING) && istr && (quoid[i] = istr[j]); i++,j++);
+ quoid[i] = '\0';
+ qi = ucs4_strlen(quoid);
+ if (istr)			/* strip trailing spaces */
+ for (;ISspace(quoid[qi - 1]); qi--);
+ quoid[qi] = '\0'; /* we have closed quoid at "X" in the first line */
+ 
+ if (ucs4_strlenis(quoid) > fillcol)
+ 	return FALSE;		/* Too wide, we can't justify this! */
+ 
+ if (qstr && istr){
+ 	for (i = ucs4_strlen(qstr) - 1; ISspace(qstr[i]); i--);
+ 	qstr[i + 1] = '\0';	/* qstrfl */
+ }
+ qlen = ucs4_strlen(qstr);	/* qstrfl*/
+ qlenis = ucs4_strlenis(qstr);
+ 
+ for(i = 0, qstr2[0] = '\0'; qstr && qstr[i] && (qstr2[i] = qstr[i]); i++);
+ 
+ if (istr && ((j = ucs4_widthis(quoid) - ucs4_widthis(qstr)) > 0)){
+ 	pqi = ucs4_strlen(qstr);
+ 	for (i = 0; (i < j) && (qstr2[pqi + i] = ' '); i++);
+ 	if (ISspace(istr[ucs4_strlen(istr) - 1]))
+ 	 qstr2[pqi + i++] = ' ';
+ 	qstr2[pqi + i] = '\0';
+ 	qstr = qstr2;
+ }
+ 
 /* cut the paragraph into our fill buffer */
 fdelete();
 if(!getregion(&region, curwp->w_markp, curwp->w_marko))
***************
*** 944,971 ****
 
 /* Now insert it back wrapped */
 spaces = word_len = word_ind = line_len = same_word = 0;
- qlen = qstr ? ucs4_strlen(qstr) : 0;
 
 /* Beginning with leading quoting... */
! if(qstr){
! 	i = 0;
! 	while(qstr[i]){
! 	 ww = wcellwidth(qstr[i]);
! 	 line_len += (ww >= 0 ? ww : 1);
! 	 linsert(1, qstr[i++]);
! 	}
 
 	line_last = ' ';			/* no word-flush space! */
 }
 
 /* remove first leading quotes if any */
 if(starts_midline)
 i = 0;
! else
! for(i = qlen; (c = fremove(i)) == ' ' || c == TAB; i++){
 	 linsert(1, line_last = (UCS) c);
 	 line_len += ((c == TAB) ? (~line_len & 0x07) + 1 : 1);
 }
 
 /* then digest the rest... */
 while((c = fremove(i++)) >= 0){
--- 1025,1060 ----
 
 /* Now insert it back wrapped */
 spaces = word_len = word_ind = line_len = same_word = 0;
 
 /* Beginning with leading quoting... */
! if(qstr || istr){
! 	for(i = 0; quoid[i] != '\0' ; i++)
! 	 linsert(1, quoid[i]);
 
 	line_last = ' ';			/* no word-flush space! */
+ line_len = ucs4_strlenis(quoid); /* we demand a recount! */
 }
 
 /* remove first leading quotes if any */
 if(starts_midline)
 i = 0;
! else{
! if(qstr || istr){
! for (i = 0; (c = fremove(i)) != '\0'; i++){
! word[i] = c;
! word[i+1] = '\0';
! if(ucs4_strlenis(word) >= ucs4_strlenis(quoid))
! break;
! }
! 	i++;
! }
! else
! 	i = 0;
! for(; ISspace(c = fremove(i)); i++){
 	 linsert(1, line_last = (UCS) c);
 	 line_len += ((c == TAB) ? (~line_len & 0x07) + 1 : 1);
 }
+ }
 
 /* then digest the rest... */
 while((c = fremove(i++)) >= 0){
***************
*** 986,1006 ****
 
 	 case TAB :
 	 case ' ' :
 	 spaces++;
 	 break;
 
 	 default :
 	 if(spaces){				/* flush word? */
! 		if((line_len - qlen > 0)
 		 && line_len + word_len + 1 > fillcol
! 		 && ((ucs4_isspace(line_last))
 		 || (linsert(1, ' ')))
 		 && same_word == 0
 		 && (line_len = fpnewline(qstr)))
 		 line_last = ' ';	/* no word-flush space! */
 
 		if(word_len){			/* word to write? */
! 		 if(line_len && !ucs4_isspace(line_last)){
 			linsert(1, ' ');	/* need padding? */
 			line_len++;
 		 }
--- 1075,1096 ----
 
 	 case TAB :
 	 case ' ' :
+ 	 case NBSP:
 	 spaces++;
 	 break;
 
 	 default :
 	 if(spaces){				/* flush word? */
! 		if((line_len - qlenis > 0)
 		 && line_len + word_len + 1 > fillcol
! 		 && ((ISspace(line_last))
 		 || (linsert(1, ' ')))
 		 && same_word == 0
 		 && (line_len = fpnewline(qstr)))
 		 line_last = ' ';	/* no word-flush space! */
 
 		if(word_len){			/* word to write? */
! 		 if(line_len && !ISspace(line_last)){
 			linsert(1, ' ');	/* need padding? */
 			line_len++;
 		 }
***************
*** 1022,1029 ****
 
 	 if(word_ind + 1 >= NSTRING){
 		/* Magic! Fake that we output a wrapped word */
! 		if((line_len - qlen > 0) && same_word == 0){
! 		 if(!ucs4_isspace(line_last))
 		 linsert(1, ' ');
 		 line_len = fpnewline(qstr);
 		}
--- 1112,1119 ----
 
 	 if(word_ind + 1 >= NSTRING){
 		/* Magic! Fake that we output a wrapped word */
! 		if((line_len - qlenis > 0) && same_word == 0){
! 		 if(!ISspace(line_last))
 		 linsert(1, ' ');
 		 line_len = fpnewline(qstr);
 		}
***************
*** 1045,1056 ****
 }
 
 if(word_len){
! 	if((line_len - qlen > 0) && (line_len + word_len + 1 > fillcol) && same_word == 0){
! 	 if(!ucs4_isspace(line_last))
 	 linsert(1, ' ');
 	 (void) fpnewline(qstr);
 	}
! 	else if(line_len && !ucs4_isspace(line_last))
 	 linsert(1, ' ');
 
 	for(j = 0; j < word_ind; j++)
--- 1135,1146 ----
 }
 
 if(word_len){
! 	if((line_len - qlenis > 0) && (line_len + word_len + 1 > fillcol) && same_word == 0){
! 	 if(!ISspace(line_last))
 	 linsert(1, ' ');
 	 (void) fpnewline(qstr);
 	}
! 	else if(line_len && !ISspace(line_last))
 	 linsert(1, ' ');
 
 	for(j = 0; j < word_ind; j++)
***************
*** 1108,1118 ****
 int len;
 
 lnewline();
! for(len = 0; quote && *quote; quote++){
 	int ww;
 
! 	ww = wcellwidth(*quote);
! 	len += (ww >= 0 ? ww : 1);
 	linsert(1, *quote);
 }
 
--- 1198,1208 ----
 int len;
 
 lnewline();
! for(len = ucs4_strlenis(quote); quote && *quote; quote++){
 	int ww;
 
! /*	ww = wcellwidth(*quote);
! 	len += (ww >= 0 ? ww : 1);*/
 	linsert(1, *quote);
 }
 
***************
*** 1256,1260 ****
--- 1346,1390 ----
 	markregion(1);
 }
 
+ /*
+ * This puts us at the end of the quoted region instead
+ * of on the following line. This makes it convenient
+ * for the user to follow a quotelevel adjustment with
+ * a Justify if desired.
+ */
+ if(backuptoprevline){
+ 	curwp->w_doto = 0;
+ 	backchar(0, 1);
+ }
+ 
+ if(ends_midline){	/* doesn't need fixing otherwise */
+ 	unmarkbuffer();
+ 	markregion(1);
+ }
+ 
 return (TRUE);
 }
+ 
+ /*
+ * If there is an indent string this function returns
+ * its length
+ */ 
+ int
+ indent_match(char **q, LINE *l, char *buf, int buflen, int raw)
+ {
+ char GLine[NSTRING];
+ int i, k, plb;
+ 
+ k = quote_match(q,l, buf, buflen, raw);
+ linencpy(GLine, l, NSTRING);
+ plb = (lback(l) != curbp->b_linep) ? lisblank(lback(l)) : 1;
+ if (!plb){
+ i = llength(lback(l)) - 1;
+ for (; i >= 0 && ISspace(lgetc(lback(l), i).c); i--);
+ if (EOLchar(lgetc(lback(l), i).c))
+ plb++;
+ } 
+ 
+ return get_indent_raw_line(q, GLine, buf, buflen, k, plb);
+ }
+ 
diff -rc alpine-2.22/pith/charconv/utf8.c alpine-2.22.fillpara/pith/charconv/utf8.c
*** alpine-2.22/pith/charconv/utf8.c	2020-01-19 01:32:19.323492819 -0700
--- alpine-2.22.fillpara/pith/charconv/utf8.c	2020-05-07 16:46:16.699304041 -0600
***************
*** 1066,1071 ****
--- 1066,1121 ----
 
 
 /*
+ * Returns the screen cells width of the UTF-8 string argument, treating tabs
+ * in a special way.
+ */
+ unsigned
+ utf8_widthis(char *str)
+ {
+ unsigned width = 0;
+ int this_width;
+ UCS ucs;
+ unsigned long remaining_octets;
+ char *readptr;
+ 
+ if(!(str && *str))
+ return(width);
+ 
+ readptr = str;
+ remaining_octets = readptr ? strlen(readptr) : 0;
+ 
+ while(remaining_octets > 0 && *readptr){
+ 
+ 	ucs = (UCS) utf8_get((unsigned char **) &readptr, &remaining_octets);
+ 
+ 	if(ucs & U8G_ERROR){
+ 	 /*
+ 	 * This should not happen, but do something to handle it anyway.
+ 	 * Treat each character as a single width character, which is what should
+ 	 * probably happen when we actually go to write it out.
+ 	 */
+ 	 remaining_octets--;
+ 	 readptr++;
+ 	 this_width = 1;
+ 	}
+ 	else{
+ 	 this_width = (ucs == TAB) ? ((~width & 0x07) + 1) : wcellwidth(ucs);
+ 
+ 	 /*
+ 	 * If this_width is -1 that means we can't print this character
+ 	 * with our current locale. Writechar will print a '?'.
+ 	 */
+ 	 if(this_width < 0)
+ 	 this_width = 1;
+ 	}
+ 
+ 	width += (unsigned) this_width;
+ }
+ 
+ return(width);
+ }
+ 
+ /*
 * Copy UTF-8 characters from src into dst.
 * This is intended to be used if you want to truncate a string at
 * the start instead of the end. For example, you have a long string
diff -rc alpine-2.22/pith/charconv/utf8.h alpine-2.22.fillpara/pith/charconv/utf8.h
*** alpine-2.22/pith/charconv/utf8.h	2020-01-19 01:32:19.323492819 -0700
--- alpine-2.22.fillpara/pith/charconv/utf8.h	2020-05-07 16:46:16.703304044 -0600
***************
*** 81,86 ****
--- 81,87 ----
 UCS *ucs4_strchr(UCS *s, UCS c);
 UCS *ucs4_strrchr(UCS *s, UCS c);
 unsigned utf8_width(char *);
+ unsigned utf8_widthis(char *);
 size_t utf8_to_width_rhs(char *, char *, size_t, unsigned);
 int utf8_snprintf(char *, size_t, char *, ...);
 size_t utf8_to_width(char *, char *, size_t, unsigned, unsigned *);
diff -rc alpine-2.22/pith/color.c alpine-2.22.fillpara/pith/color.c
*** alpine-2.22/pith/color.c	2020-01-19 01:32:19.372491838 -0700
--- alpine-2.22.fillpara/pith/color.c	2020-05-07 16:46:16.707304046 -0600
***************
*** 21,27 ****
 #include "../pith/state.h"
 #include "../pith/conf.h"
 #include "../pith/filter.h"
! 
 
 char *
 color_embed(char *fg, char *bg)
--- 21,28 ----
 #include "../pith/state.h"
 #include "../pith/conf.h"
 #include "../pith/filter.h"
! #include "../pith/mailview.h"
! #include "../pico/estruct.h"
 
 char *
 color_embed(char *fg, char *bg)
***************
*** 70,92 ****
 struct quote_colors *next;
 };
 
 
 int
 color_a_quote(long int linenum, char *line, LT_INS_S **ins, void *is_flowed_msg)
 {
! int countem = 0;
 struct variable *vars = ps_global->vars;
! char *p;
 struct quote_colors *colors = NULL, *cp, *next;
 COLOR_PAIR *col = NULL;
 int is_flowed = is_flowed_msg ? *((int *)is_flowed_msg) : 0;
 
 p = line;
! if(!is_flowed)
! while(isspace((unsigned char)*p))
! 	p++;
 
! if(p[0] == '>'){
 	struct quote_colors *c;
 
 	/*
--- 71,180 ----
 struct quote_colors *next;
 };
 
+ int
+ is_word (buf, i, j)
+ char buf[NSTRING];
+ int i, j;
+ {
+ return i <= j && is_letter(buf[i]) ?
+ (i < j ? is_word(buf,i+1,j) : 1) : 0;
+ }
+ 
+ int
+ is_mailbox(buf,i,j)
+ char buf[NSTRING];
+ int i, j;
+ {
+ return i <= j && (is_letter(buf[i]) || is_digit(buf[i]) || buf[i] == '.')
+ ? (i < j ? is_mailbox(buf,i+1,j) : 1) : 0;
+ }
+ 
+ int
+ next_level_quote(buf, line, i, is_flowed)
+ char *buf;
+ char **line;
+ int i;
+ int is_flowed;
+ {
+ int j;
+ 
+ if (!single_level(buf[i])){
+ if(is_mailbox(buf,i,i)){
+ for (j = i; buf[j] && !isspace(buf[j]); j++);
+ if (is_word(buf,i,j-1) || is_mailbox(buf,i,j-1))
+ j += isspace(buf[j]) ? 2 : 1;
+ }
+ else{
+ switch(buf[i]){
+ case ':' :
+ if (next(buf,i) != RPAREN)
+ j = i + 1;
+ else
+ j = i + 2;
+ break;
+ 
+ case '-' :
+ if (next(buf,i) != '-')
+ j = i + 2;
+ else
+ j = i + 3;
+ break;
+ 
+ case '+' :
+ case '*' :
+ if (next(buf,i) != ' ')
+ j = i + 2;
+ else
+ j = i + 3;
+ break;
+ 
+ default :
+ for (j = i; buf[j] && !isspace(buf[j])
+ && (!single_level(buf[i]) && !is_letter(buf[j])); j++);
+ 
+ j += isspace(buf[j]) ? 1 : 0;
+ break;
+ }
+ }
+ if (line && *line)
+ (*line) += j - i;
+ }
+ else{
+ j = i+1;
+ if (line && *line)
+ (*line)++;
+ }
+ if(!is_flowed){
+ if(line && *line)
+ for(; isspace((unsigned char)*(*line)); (*line)++);
+ for (i = j; isspace((unsigned char) buf[i]); i++);
+ }
+ else i = j;
+ if (is_flowed && i != j)
+ buf[i] = '\0';
+ return i;
+ }
 
 int
 color_a_quote(long int linenum, char *line, LT_INS_S **ins, void *is_flowed_msg)
 {
! int countem = 0, i, j = 0;
 struct variable *vars = ps_global->vars;
! char *p, buf[NSTRING] = {'\0'};
 struct quote_colors *colors = NULL, *cp, *next;
 COLOR_PAIR *col = NULL;
 int is_flowed = is_flowed_msg ? *((int *)is_flowed_msg) : 0;
+ int code;
+ 
+ code = (is_flowed ? IS_FLOWED : NO_FLOWED) | COLORAQUO;
+ select_quote(linenum, line, ins, (void *) &code);
+ strncpy(buf, tmp_20k_buf, NSTRING < SIZEOF_20KBUF ? NSTRING : SIZEOF_20KBUF);
+ buf[sizeof(buf)-1] = '\0';
 
 p = line;
! for(i = 0; isspace((unsigned char)buf[i]); i++, p++);
 
! if(buf[i]){
 	struct quote_colors *c;
 
 	/*
***************
*** 135,141 ****
 free_color_pair(&col);
 
 cp = NULL;
! while(*p == '>'){
 	cp = (cp && cp->next) ? cp->next : colors;
 
 	if(countem > 0)
--- 223,229 ----
 free_color_pair(&col);
 
 cp = NULL;
! while(buf[i]){
 	cp = (cp && cp->next) ? cp->next : colors;
 
 	if(countem > 0)
***************
*** 145,154 ****
 
 	countem = (countem == 1) ? 0 : countem;
 
! 	p++;
! 	if(!is_flowed)
! 	 for(; isspace((unsigned char)*p); p++)
! 	 ;
 }
 
 if(colors){
--- 233,241 ----
 
 	countem = (countem == 1) ? 0 : countem;
 
! i = next_level_quote(buf, &p, i, is_flowed);
! for (; isspace((unsigned char)*p); p++);
! for (; isspace((unsigned char)buf[i]); i++);
 }
 
 if(colors){
***************
*** 211,217 ****
 	}
 }
 
! return(0);
 }
 
 
--- 298,304 ----
 	}
 }
 
! return(1);
 }
 
 
diff -rc alpine-2.22/pith/color.h alpine-2.22.fillpara/pith/color.h
*** alpine-2.22/pith/color.h	2020-01-19 01:32:19.396491358 -0700
--- alpine-2.22.fillpara/pith/color.h	2020-05-07 16:46:16.707304046 -0600
***************
*** 22,27 ****
--- 22,45 ----
 #include "../pith/pattern.h"
 #include "../pith/osdep/color.h"
 
+ #define NO_FLOWED 0x0000
+ #define IS_FLOWED 0x0001
+ #define DELETEQUO 0x0010
+ #define COLORAQUO 0x0100
+ #define RAWSTRING 0x1000
+ 
+ /* This is needed for justification, I will move it to a better place later
+ * or maybe not
+ */
+ #define is_digit(c) ((((c) >= '0') && ((c) <= '9')) ? 1 : 0)
+ 
+ #define is_letter(c) (((c) >= 'a' && (c) <= 'z') || \
+ ((c) >= 'A' && (c) <= 'Z'))
+ 
+ #define next(w,i) ((((w)[(i)]) != 0) ? ((w)[(i) + 1]) : 0)
+ 
+ #define single_level(c) (((c) == '>') || ((c) == '|') || ((c) == '~') || \
+ ((c) == ']'))
 
 typedef struct spec_color_s {
 int inherit;	/* this isn't a color, it is INHERIT */
***************
*** 81,86 ****
--- 99,105 ----
 /* exported prototypes */
 char	*color_embed(char *, char *);
 int	 colorcmp(char *, char *);
+ int	 next_level_quote(char *, char **, int, int);
 int	 color_a_quote(long, char *, LT_INS_S **, void *);
 void	 free_spec_colors(SPEC_COLOR_S **);
 
diff -rc alpine-2.22/pith/filter.c alpine-2.22.fillpara/pith/filter.c
*** alpine-2.22/pith/filter.c	2020-01-19 01:32:19.192495441 -0700
--- alpine-2.22.fillpara/pith/filter.c	2020-05-07 16:46:16.711304048 -0600
***************
*** 46,51 ****
--- 46,52 ----
 #include "../pith/conf.h"
 #include "../pith/store.h"
 #include "../pith/color.h"
+ #include "../pith/osdep/color.h"
 #include "../pith/escapes.h"
 #include "../pith/pipe.h"
 #include "../pith/status.h"
***************
*** 9270,9275 ****
--- 9271,9281 ----
 		margin_r,
 		indent;
 char	special[256];
+ long	curlinenum;	/* current line number */
+ int		curqstrpos;	/* current position in quote string */
+ long	linenum;	/* line number */
+ long	qstrlen;	/* multiples of 100 */
+ char **qstrln;		/* qstrln[i] = quote string line i - 1 */
 } WRAP_S;
 
 #define	WRAP_MARG_L(F)	(((WRAP_S *)(F)->opt)->margin_l)
***************
*** 9311,9316 ****
--- 9317,9328 ----
 #define	WRAP_COLOR(F)	(((WRAP_S *)(F)->opt)->color)
 #define	WRAP_COLOR_SET(F) ((WRAP_COLOR(F)) && (WRAP_COLOR(F)->fg[0]))
 #define	WRAP_SPACES(F)	(((WRAP_S *)(F)->opt)->spaces)
+ #define	WRAP_CURLINE(F)	(((WRAP_S *)(F)->opt)->curlinenum)
+ #define	WRAP_CURPOS(F)	(((WRAP_S *)(F)->opt)->curqstrpos)
+ #define	WRAP_LINENUM(F)	(((WRAP_S *)(F)->opt)->linenum)
+ #define	WRAP_QSTRLEN(F)	(((WRAP_S *)(F)->opt)->qstrlen)
+ #define	WRAP_QSTRN(F)	(((WRAP_S *)(F)->opt)->qstrln)
+ #define	WRAP_QSTR(F, N)	(((WRAP_S *)(F)->opt)->qstrln[(N)])
 #define	WRAP_PUTC(F,C,W) {						\
 			 if((F)->linep == WRAP_LASTC(F)){		\
 				size_t offset = (F)->linep - (F)->line;	\
***************
*** 9388,9393 ****
--- 9400,9407 ----
 	 case CCR :				/* CRLF or CR in text ? */
 		state = BOL;				/* either way, handle start */
 
+ 		WRAP_CURLINE(f)++;
+ 		WRAP_CURPOS(f) = 0;
 		if(WRAP_FLOW(f)){
 		 /* wrapped line? */
 		 if(f->f2 == 0 && WRAP_SPC_LEN(f) && WRAP_TRL_SPC(f)){
***************
*** 9481,9487 ****
 
 	 case BOL :
 		if(WRAP_FLOW(f)){
! 		 if(c == '>'){
 			WRAP_FL_QC(f) = 1;		/* init it */
 			state = FL_QLEV;		/* go collect it */
 		 }
--- 9495,9505 ----
 
 	 case BOL :
 		if(WRAP_FLOW(f)){
! 		 if(WRAP_CURLINE(f) < WRAP_QSTRLEN(f) 
! 			&& WRAP_QSTR(f, WRAP_CURLINE(f)) 
! 			&& WRAP_QSTR(f, WRAP_CURLINE(f))[WRAP_CURPOS(f)]
! 			&& WRAP_QSTR(f, WRAP_CURLINE(f))[WRAP_CURPOS(f)] == c){
! 			WRAP_CURPOS(f)++;
 			WRAP_FL_QC(f) = 1;		/* init it */
 			state = FL_QLEV;		/* go collect it */
 		 }
***************
*** 9495,9501 ****
 			}
 
 			/* quote level change implies new paragraph */
! 			if(WRAP_FL_QD(f)){
 			 WRAP_FL_QD(f) = 0;
 			 if(WRAP_HARD(f) == 0){
 				WRAP_HARD(f) = 1;
--- 9513,9528 ----
 			}
 
 			/* quote level change implies new paragraph */
! 			if (WRAP_CURLINE(f) > 0 
! 			&& WRAP_CURLINE(f) < WRAP_QSTRLEN(f)
! 			&& (WRAP_QSTR(f, WRAP_CURLINE(f)) != NULL
! 			 || WRAP_QSTR(f, WRAP_CURLINE(f) - 1) != NULL)
! 			&& ((WRAP_QSTR(f, WRAP_CURLINE(f)) != NULL && 
! 			 WRAP_QSTR(f, WRAP_CURLINE(f) - 1) == NULL)
! 			 || (WRAP_QSTR(f, WRAP_CURLINE(f)) == NULL && 
! 			 WRAP_QSTR(f, WRAP_CURLINE(f) - 1) != NULL)
! 			 || strcmp(WRAP_QSTR(f, WRAP_CURLINE(f)),
! 				 WRAP_QSTR(f, WRAP_CURLINE(f) - 1)))){
 			 WRAP_FL_QD(f) = 0;
 			 if(WRAP_HARD(f) == 0){
 				WRAP_HARD(f) = 1;
***************
*** 9547,9554 ****
 		break;
 
 	 case FL_QLEV :
! 		if(c == '>'){				/* another level */
! 		 WRAP_FL_QC(f)++;
 		}
 		else {
 		 /* if EMBEDed, process it and return here */
--- 9574,9585 ----
 		break;
 
 	 case FL_QLEV :
! 		if(WRAP_CURLINE(f) < WRAP_QSTRLEN(f)
! 		 && WRAP_QSTR(f, WRAP_CURLINE(f)) 
! 		 && WRAP_QSTR(f, WRAP_CURLINE(f))[WRAP_CURPOS(f)]
! 		 && WRAP_QSTR(f, WRAP_CURLINE(f))[WRAP_CURPOS(f)] == c){
! 		 WRAP_CURPOS(f)++;
! 		 WRAP_FL_QC(f)++; 			/* another level */
 		}
 		else {
 		 /* if EMBEDed, process it and return here */
***************
*** 9560,9566 ****
 		 }
 
 		 /* quote level change signals new paragraph */
! 		 if(WRAP_FL_QC(f) != WRAP_FL_QD(f)){
 			WRAP_FL_QD(f) = WRAP_FL_QC(f);
 			if(WRAP_HARD(f) == 0){		/* add hard newline */ 
 			 WRAP_HARD(f) = 1;		/* hard newline */
--- 9591,9606 ----
 		 }
 
 		 /* quote level change signals new paragraph */
! 		 if (WRAP_CURLINE(f) > 0 
! 			&& WRAP_CURLINE(f) < WRAP_QSTRLEN(f)
! 			&& (WRAP_QSTR(f, WRAP_CURLINE(f))
! 			 || WRAP_QSTR(f, WRAP_CURLINE(f) - 1))
! 			&& ((WRAP_QSTR(f, WRAP_CURLINE(f)) && 
! 			 !WRAP_QSTR(f, WRAP_CURLINE(f) - 1))
! 			 || (!WRAP_QSTR(f, WRAP_CURLINE(f)) && 
! 			 WRAP_QSTR(f, WRAP_CURLINE(f) - 1))
! 			 || strcmp(WRAP_QSTR(f, WRAP_CURLINE(f)),
! 				 WRAP_QSTR(f, WRAP_CURLINE(f) - 1)))){
 			WRAP_FL_QD(f) = WRAP_FL_QC(f);
 			if(WRAP_HARD(f) == 0){		/* add hard newline */ 
 			 WRAP_HARD(f) = 1;		/* hard newline */
***************
*** 9617,9622 ****
--- 9657,9669 ----
 		 state = FL_SIG;
 		 break;
 
+ 		 case ' ' :				/* what? */
+ 		 if (WRAP_CURLINE(f) < WRAP_QSTRLEN(f) 
+ 			&& WRAP_QSTR(f, WRAP_CURLINE(f))){
+ 			WRAP_SPC_LEN(f)++;
+ 			so_writec(' ', WRAP_SPACES(f));
+ 		 }
+ 
 		 default :				/* something else */
 		 state = DFL;
 		 goto case_dfl;			/* handle c like DFL */
***************
*** 9633,9639 ****
 					 &eob); /* note any embedded*/
 			 wrap_eol(f, 1, &ip, &eib,
 				 &op, &eob); /* plunk down newline */
! 			 wrap_bol(f, 1, 1, &ip, &eib,
 				 &op, &eob); /* write any prefix */
 			}
 
--- 9680,9686 ----
 					 &eob); /* note any embedded*/
 			 wrap_eol(f, 1, &ip, &eib,
 				 &op, &eob); /* plunk down newline */
! 			 wrap_bol(f, 1, WRAP_FLOW(f), &ip, &eib,
 				 &op, &eob); /* write any prefix */
 			}
 
***************
*** 10130,10136 ****
 		 wrap_flush_embed(f, &ip, &eib, &op, &eob);
 		 wrap_eol(f, 1, &ip, &eib, &op,
 			 &eob);	 /* plunk down newline */
! 		 wrap_bol(f,1,1, &ip, &eib, &op,
 			 &eob);	 /* write any prefix */
 		}
 
--- 10177,10183 ----
 		 wrap_flush_embed(f, &ip, &eib, &op, &eob);
 		 wrap_eol(f, 1, &ip, &eib, &op,
 			 &eob);	 /* plunk down newline */
! 		 wrap_bol(f,1,WRAP_FLOW(f), &ip, &eib, &op,
 			 &eob);	 /* write any prefix */
 		}
 
***************
*** 10203,10208 ****
--- 10250,10262 ----
 	if(WRAP_COLOR(f))
 	 free_color_pair(&WRAP_COLOR(f));
 
+ 	{ long i;
+ 	 for (i = 0L; i < WRAP_QSTRLEN(f); i++)
+ 	 if (WRAP_QSTR(f,i))
+ 		fs_give((void **) &(WRAP_QSTR(f,i)));
+ 	 fs_give((void **)&WRAP_QSTRN(f));
+ 	}
+ 
 	fs_give((void **) &f->line);	/* free temp line buffer */
 	so_give(&WRAP_SPACES(f));
 	fs_give((void **) &f->opt);	/* free wrap widths struct */
***************
*** 10553,10559 ****
 {
 int j, i;
 COLOR_PAIR *col = NULL;
! char *prefix = NULL, *last_prefix = NULL;
 
 if(ps_global->VAR_QUOTE_REPLACE_STRING){
 	get_pair(ps_global->VAR_QUOTE_REPLACE_STRING, &prefix, &last_prefix, 0, 0);
--- 10607,10614 ----
 {
 int j, i;
 COLOR_PAIR *col = NULL;
! char *prefix = NULL, *last_prefix = NULL, *wrap_qstr = NULL;
! int level = 0, oldj, len;
 
 if(ps_global->VAR_QUOTE_REPLACE_STRING){
 	get_pair(ps_global->VAR_QUOTE_REPLACE_STRING, &prefix, &last_prefix, 0, 0);
***************
*** 10562,10571 ****
 	 last_prefix = NULL;
 	}
 }
! 
! for(j = 0; j < WRAP_FL_QD(f); j++){
 	if(WRAP_USE_CLR(f)){
! 	 if((j % 3) == 0
 	 && ps_global->VAR_QUOTE1_FORE_COLOR
 	 && ps_global->VAR_QUOTE1_BACK_COLOR
 	 && (col = new_color_pair(ps_global->VAR_QUOTE1_FORE_COLOR,
--- 10617,10638 ----
 	 last_prefix = NULL;
 	}
 }
! 
! if(WRAP_CURLINE(f) < WRAP_QSTRLEN(f) && WRAP_QSTR(f, WRAP_CURLINE(f)))
! wrap_qstr = cpystr(WRAP_QSTR(f, WRAP_CURLINE(f)));
! len = wrap_qstr ? strlen(wrap_qstr) : 0;
! 
! for (j = wrap_qstr && *wrap_qstr == ' ' ? 1 : 0;
! 		 j < len && isspace((unsigned char)wrap_qstr[j]); j++){
! 	GF_PUTC_GLO(f->next, wrap_qstr[j]);
! f->n += ((wrap_qstr[j] == TAB) ? (~f->n & 0x07) + 1 : 1);
! }
! 
! for(; j < len && level < len; level++){
! oldj = j;
! j = next_level_quote(wrap_qstr, (char **)NULL, j, WRAP_FLOW(f));
 	if(WRAP_USE_CLR(f)){
! 	 if((level % 3) == 0
 	 && ps_global->VAR_QUOTE1_FORE_COLOR
 	 && ps_global->VAR_QUOTE1_BACK_COLOR
 	 && (col = new_color_pair(ps_global->VAR_QUOTE1_FORE_COLOR,
***************
*** 10573,10579 ****
 	 && pico_is_good_colorpair(col)){
 GF_COLOR_PUTC(f, col);
 }
! 	 else if((j % 3) == 1
 		 && ps_global->VAR_QUOTE2_FORE_COLOR
 		 && ps_global->VAR_QUOTE2_BACK_COLOR
 		 && (col = new_color_pair(ps_global->VAR_QUOTE2_FORE_COLOR,
--- 10640,10646 ----
 	 && pico_is_good_colorpair(col)){
 GF_COLOR_PUTC(f, col);
 }
! 	 else if((level % 3) == 1
 		 && ps_global->VAR_QUOTE2_FORE_COLOR
 		 && ps_global->VAR_QUOTE2_BACK_COLOR
 		 && (col = new_color_pair(ps_global->VAR_QUOTE2_FORE_COLOR,
***************
*** 10581,10587 ****
 		 && pico_is_good_colorpair(col)){
 	 GF_COLOR_PUTC(f, col);
 }
! 	 else if((j % 3) == 2
 		 && ps_global->VAR_QUOTE3_FORE_COLOR
 		 && ps_global->VAR_QUOTE3_BACK_COLOR
 		 && (col = new_color_pair(ps_global->VAR_QUOTE3_FORE_COLOR,
--- 10648,10654 ----
 		 && pico_is_good_colorpair(col)){
 	 GF_COLOR_PUTC(f, col);
 }
! 	 else if((level % 3) == 2
 		 && ps_global->VAR_QUOTE3_FORE_COLOR
 		 && ps_global->VAR_QUOTE3_BACK_COLOR
 		 && (col = new_color_pair(ps_global->VAR_QUOTE3_FORE_COLOR,
***************
*** 10595,10637 ****
 	 }
 	}
 
 	if(!WRAP_LV_FLD(f)){
 	 if(!WRAP_FOR_CMPS(f) && ps_global->VAR_QUOTE_REPLACE_STRING && prefix){
 		for(i = 0; prefix[i]; i++)
 		 GF_PUTC_GLO(f->next, prefix[i]);
! 		f->n += utf8_width(prefix);
! 	 }
! 	 else if(ps_global->VAR_REPLY_STRING
! 		 && (!strcmp(ps_global->VAR_REPLY_STRING, ">")
! 			|| !strcmp(ps_global->VAR_REPLY_STRING, "\">\""))){
! 		GF_PUTC_GLO(f->next, '>');
! 		f->n += 1;
 	 }
 	 else{
! 		GF_PUTC_GLO(f->next, '>');
! 		GF_PUTC_GLO(f->next, ' ');
! 		f->n += 2;
 	 }
 	}
 	else{
! 	 GF_PUTC_GLO(f->next, '>');
! 	 f->n += 1;
 	}
 }
 if(j && WRAP_LV_FLD(f)){
 	GF_PUTC_GLO(f->next, ' ');
 	f->n++;
 }
! else if(j && last_prefix){
 	for(i = 0; last_prefix[i]; i++)
 	 GF_PUTC_GLO(f->next, last_prefix[i]);
! 	f->n += utf8_width(last_prefix);	
 }
 
 if(prefix)
 fs_give((void **)&prefix);
 if(last_prefix)
 fs_give((void **)&last_prefix);
 
 return 0;
 }
--- 10662,10708 ----
 	 }
 	}
 
+ 	if (j > 1 && wrap_qstr[j-1] == ' ')
+ 	 j -= 1; 
+ 
 	if(!WRAP_LV_FLD(f)){
 	 if(!WRAP_FOR_CMPS(f) && ps_global->VAR_QUOTE_REPLACE_STRING && prefix){
 		for(i = 0; prefix[i]; i++)
 		 GF_PUTC_GLO(f->next, prefix[i]);
! 		f->n += utf8_widthis(prefix);
 	 }
 	 else{
! 	 for (i = oldj; i < j; i++) 
! 		GF_PUTC_GLO(f->next, wrap_qstr[i]);
! 	 f->n += j - oldj;
 	 }
 	}
 	else{
! 	 for (i = oldj; i < j; i++) 
! 		GF_PUTC_GLO(f->next, wrap_qstr[i]);
! 	 f->n += j - oldj;
 	}
+ 	for (i = j; isspace((unsigned char)wrap_qstr[i]); i++)
+ 	 GF_PUTC_GLO(f->next, ' ');
+ 	 f->n += i - j;
+ 	for (; isspace((unsigned char)wrap_qstr[j]); j++);
 }
 if(j && WRAP_LV_FLD(f)){
 	GF_PUTC_GLO(f->next, ' ');
 	f->n++;
 }
! else if(j && !value_is_space(wrap_qstr) && last_prefix){
 	for(i = 0; last_prefix[i]; i++)
 	 GF_PUTC_GLO(f->next, last_prefix[i]);
! 	f->n += utf8_widthis(last_prefix);	
 }
 
 if(prefix)
 fs_give((void **)&prefix);
 if(last_prefix)
 fs_give((void **)&last_prefix);
+ if (wrap_qstr)
+ fs_give((void **)&wrap_qstr); 
 
 return 0;
 }
***************
*** 10663,10668 ****
--- 10734,10745 ----
 wrap->hdr_color = (GFW_HDRCOLOR & flags) == GFW_HDRCOLOR;
 wrap->for_compose = (GFW_FORCOMPOSE & flags) == GFW_FORCOMPOSE;
 wrap->handle_soft_hyphen = (GFW_SOFTHYPHEN & flags) == GFW_SOFTHYPHEN;
+ wrap->curlinenum = 0L;
+ wrap->curqstrpos = 0;
+ wrap->linenum = 0L;
+ wrap->qstrlen = 100L;
+ wrap->qstrln = (char **) fs_get(100*sizeof(char *));
+ memset(wrap->qstrln, 0, 100*sizeof(char *));
 
 return((void *) wrap);
 }
***************
*** 11106,11112 ****
--- 11183,11397 ----
 			 } \
 			}
 
+ #define ADD_QUOTE_STRING(F) {						\
+ 	int len = tmp_20k_buf[0] ? strlen(tmp_20k_buf) + 1 : 0;		\
+ 	FILTER_S *fltr;							\
+ 									\
+ 	for(fltr = (F); fltr && fltr->f != gf_wrap; fltr = fltr->next); \
+ 	if (fltr){							\
+ 	 if (WRAP_LINENUM(fltr) >= WRAP_QSTRLEN(fltr)){		\
+ 	 fs_resize((void **)&WRAP_QSTRN(fltr),			\
+ 			(WRAP_QSTRLEN(fltr) + 100) * sizeof(char *));	\
+ 	 memset(WRAP_QSTRN(fltr)+WRAP_QSTRLEN(fltr), 0, 		\
+ 						100*sizeof(char*));	\
+ 	 WRAP_QSTRLEN(fltr) += 100L;				\
+ 	 }								\
+ 	 if (len){							\
+ 	 WRAP_QSTR(fltr, WRAP_LINENUM(fltr)) = 			\
+ 				(char *) fs_get(len*sizeof(char));	\
+ 	 WRAP_QSTR(fltr, WRAP_LINENUM(fltr)) = cpystr(tmp_20k_buf);\
+ 	 }								\
+ 	 WRAP_LINENUM(fltr)++;					\
+ 	}								\
+ }
+ 
+ int end_of_line(char *line)
+ {
+ int i;
+ 
+ for(i= 0; line && line[i]; i++){
+ if((line[i] == '\015' && line[i+1] == '\012') || line[i] == '\012')
+ 	break;
+ }
+ return i;
+ }
+ 
+ /* This macro is used in gf_quote_test. It receives a return code
+ from a filter. All filters that will print something must send
+ return code 0, except color_a_quote which must send return code
+ 1
+ */
+ 
+ #define GF_ADD_QUOTED_LINE(F, line) \
+ { \
+ LT_INS_S *ins = NULL, *insp; \
+ int done; \
+ char *gline, *cline;\
+ unsigned char ch;\
+ register char *cp;\
+ register int l;\
+ 	\
+ for (gline = cline = line; gline && cline; ){\
+ 	if(cline = strchr(gline,'\012'))\
+ 	 *cline = '\0';\
+ 	done = (*((LINETEST_S *) (F)->opt)->f)((F)->n++, gline, &ins,\
+ 			 ((LINETEST_S *) (F)->opt)->local);\
+ 	if (done < 2){ \
+ 	 if(done == 1)\
+ 	 ADD_QUOTE_STRING((F));\
+ 	 for(insp = ins, cp = gline; *cp ; ){\
+ 	 if(insp && cp == insp->where){\
+ 		if(insp->len > 0){ \
+ 	 for(l = 0; l < insp->len; l++){\
+ 			 ch = (unsigned char) insp->text[l];\
+ 		 GF_PUTC((F)->next, ch);\
+ 	 }\
+ 	 insp = insp->next;\
+ 		 continue; \
+ 		} else if(insp->len < 0){ \
+ 		 cp -= insp->len; \
+ 		 insp = insp->next; \
+ 		 continue; \
+ 		} \
+ 	 }\
+ 	 GF_PUTC((F)->next, *cp);\
+ 	 cp++;\
+ 	 }\
+ 	 while(insp){\
+ 	 for(l = 0; l < insp->len; l++){\
+ 	 ch = (unsigned char) insp->text[l];\
+ 	 GF_PUTC((F)->next, ch);\
+ 	 }\
+ 	 insp = insp->next;\
+ 	 }\
+ 	 gf_line_test_free_ins(&ins);\
+ 	 if(cline){ \
+ 	 *cline = '\012';\
+ 	 gline += cline - gline + 1;\
+ 	 }\
+ 	 GF_PUTC((F)->next, '\015');\
+ 	 GF_PUTC((F)->next, '\012');\
+ 	}\
+ }\
+ }
+ /* test second line of old line first */
+ #define SECOND_LINE_QUOTE_TEST(line, F) \
+ {\
+ 	*p = '\0';\
+ 	i = end_of_line((F)->oldline); \
+ 	if (((F)->oldline)[i]){\
+ 	 i += (((F)->oldline)[i] == '\015') ? 2 : 1;\
+ 	 line = (F)->oldline + i;\
+ 	 i = end_of_line(line); \
+ 	 if(line[i])\
+ 	 line[i] = '\0'; \
+ 	}\
+ 	for (i = 0; ((F)->line) \
+ 		&& (i < LINE_TEST_BLOCK) \
+ 		&& (i < SIZEOF_20KBUF)\
+ 		&& ((F)->line)[i] \
+ 		&& (((F)->line)[i] != '\015')\
+ 		&& (((F)->line)[i] != '\012')\
+ 		&& (tmp_20k_buf[i] = ((F)->line)[i]); i++);\
+ 	tmp_20k_buf[i] = '\0';\
+ 	GF_ADD_QUOTED_LINE((F), line);\
+ }
+ 
+ #define FIRST_LINE_QUOTE_TEST(line, F)\
+ {\
+ 	*p = '\0';\
+ 	line = (F)->line;\
+ 	if ((F)->oldline)\
+ 	 fs_give((void **)&(F)->oldline);\
+ 	(F)->oldline = cpystr(line);\
+ 	i = end_of_line(line); \
+ 	if (line[i]){ \
+ 	 j = (line[i] == '\015') ? 2 : 1;\
+ 	 line[i] = '\0'; \
+ 	 i += j; \
+ 	}\
+ 	for (j = 0; ((F)->line) \
+ 		&& ((i + j) < LINE_TEST_BLOCK) \
+ 		&& (j < SIZEOF_20KBUF) \
+ 		&& ((F)->line)[i + j] \
+ 		&& (((F)->line)[i + j] != '\015')\
+ 		&& (((F)->line)[i + j] != '\012')\
+ 		&& (tmp_20k_buf[j] = ((F)->line)[i + j]); j++);\
+ 	tmp_20k_buf[j] = '\0';\
+ 	GF_ADD_QUOTED_LINE((F), line);\
+ }
+ 
+ 
+ void
+ gf_quote_test(f, flg)
+ FILTER_S *f;
+ int	 flg;
+ {
+ register char *p = f->linep;
+ register char *eobuf = GF_LINE_TEST_EOB(f);
+ char *line = NULL; 
+ int i, j;
+ GF_INIT(f, f->next);
+ 
+ if(flg == GF_DATA){
+ 	register unsigned char c;
+ 	register int state = f->f1;
+ 
+ 	while(GF_GETC(f, c)){
+ 
+ 	 GF_LINE_TEST_ADD(f, c);
+ 	 if(c == '\012')
+ 	 state++;
+ 	 if(state == 2){		/* two full lines read */
+ 		state = 0;
+ 
+ 		/* first process the second line of an old line */
+ 		if (f->oldline && f->oldline[0])
+ 		 SECOND_LINE_QUOTE_TEST(line, f);
+ 
+ 		/* now we process the first line */
+ 		FIRST_LINE_QUOTE_TEST(line, f);
+ 
+ 		p = f->line;
+ 	 }
+ 	}
+ 
+ 	f->f1 = state;
+ 	GF_END(f, f->next);
+ }
+ else if(flg == GF_EOD){
+ /* first process the second line of an old line */
+ 	if (f->oldline && f->oldline[0])
+ 	 SECOND_LINE_QUOTE_TEST(line, f);
+ 
+ 	/* now we process the first line */
+ 	FIRST_LINE_QUOTE_TEST(line, f);
+ 
+ 	/* We are out of data. In this case we have processed the second
+ 	 * line of an oldline, then the first line of a line, but we need
+ 	 * to process the second line of the given line. We do this by
+ 	 * processing it now!.
+ 	 */
+ 	if (line[i]){
+ 	 tmp_20k_buf[0] = '\0';	/* No next line */
+ 	 GF_ADD_QUOTED_LINE(f, line+i);
+ 	}
+ 
+ 	fs_give((void **) &f->oldline); /* free old line buffer */
+ 	fs_give((void **) &f->line);	/* free line buffer */
+ 	fs_give((void **) &f->opt);	/* free test struct */
+ 	GF_FLUSH(f->next);
+ 	(*f->next->f)(f->next, GF_EOD);
+ }
+ else if(flg == GF_RESET){
+ 	f->f1 = 0;			/* state */
+ 	f->n = 0L;			/* line number */
+ 	f->f2 = LINE_TEST_BLOCK;	/* size of alloc'd line */
+ 	f->line = p = (char *) fs_get(f->f2 * sizeof(char));
+ }
 
+ f->linep = p;
+ }
 
 /*
 * this simple filter accumulates characters until a newline, offers it
diff -rc alpine-2.22/pith/filter.h alpine-2.22.fillpara/pith/filter.h
*** alpine-2.22/pith/filter.h	2020-01-19 01:32:19.683485612 -0700
--- alpine-2.22.fillpara/pith/filter.h	2020-05-07 16:46:16.715304052 -0600
***************
*** 216,221 ****
--- 216,222 ----
 void	 *gf_prepend_editorial_opt(prepedtest_t, char *);
 void	 gf_nvtnl_local(FILTER_S *, int);
 void	 gf_local_nvtnl(FILTER_S *, int);
+ void	 gf_quote_test(FILTER_S *, int);
 void	 *gf_url_hilite_opt(URL_HILITE_S *, HANDLE_S **, int);
 void	 free_filter_module_globals(void);
 
diff -rc alpine-2.22/pith/filttype.h alpine-2.22.fillpara/pith/filttype.h
*** alpine-2.22/pith/filttype.h	2020-01-19 01:32:19.531488655 -0700
--- alpine-2.22.fillpara/pith/filttype.h	2020-05-07 16:46:16.715304052 -0600
***************
*** 36,41 ****
--- 36,43 ----
 unsigned char t;		/* temporary char */
 char *line;		/* place for temporary storage */
 char *linep;		/* pointer into storage space */
+ char *oldline;		/* the previous line to "line"		 */
+ char *oldlinep;		/* the previous line to "line"		 */
 void *opt;		/* optional per instance data		 */
 void *data;		/* misc internal data pointer		 */
 unsigned char queue[1 + GF_MAXBUF];
diff -rc alpine-2.22/pith/mailview.c alpine-2.22.fillpara/pith/mailview.c
*** alpine-2.22/pith/mailview.c	2020-01-19 01:32:18.803503250 -0700
--- alpine-2.22.fillpara/pith/mailview.c	2020-05-07 16:46:16.715304052 -0600
***************
*** 55,61 ****
 #include "../pith/escapes.h"
 #include "../pith/keyword.h"
 #include "../pith/smime.h"
! 
 
 #define FBUF_LEN	(50)
 
--- 55,65 ----
 #include "../pith/escapes.h"
 #include "../pith/keyword.h"
 #include "../pith/smime.h"
! #include "../pith/osdep/color.h"
! #include "../pico/osdep/color.h"
! #include "../pico/estruct.h"
! #include "../pico/pico.h"
! #include "../pico/efunc.h"
 
 #define FBUF_LEN	(50)
 
***************
*** 640,646 ****
 	 && pico_usingcolor()
 	 && ps_global->VAR_SIGNATURE_FORE_COLOR
 	 && ps_global->VAR_SIGNATURE_BACK_COLOR){
! 		gf_link_filter(gf_line_test, gf_line_test_opt(color_signature, &is_in_sig));
 	 }
 
 	 if((flgs & FM_DISPLAY)
--- 644,650 ----
 	 && pico_usingcolor()
 	 && ps_global->VAR_SIGNATURE_FORE_COLOR
 	 && ps_global->VAR_SIGNATURE_BACK_COLOR){
! 		gf_link_filter(gf_quote_test, gf_line_test_opt(color_signature, &is_in_sig));
 	 }
 
 	 if((flgs & FM_DISPLAY)
***************
*** 648,655 ****
 	 && pico_usingcolor()
 	 && ps_global->VAR_QUOTE1_FORE_COLOR
 	 && ps_global->VAR_QUOTE1_BACK_COLOR){
! 		gf_link_filter(gf_line_test, gf_line_test_opt(color_a_quote, NULL));
 	 }
 
 	 if(!(flgs & FM_NOWRAP)){
 		wrapflags = (flgs & FM_DISPLAY) ? (GFW_HANDLES|GFW_SOFTHYPHEN) : GFW_NONE;
--- 652,661 ----
 	 && pico_usingcolor()
 	 && ps_global->VAR_QUOTE1_FORE_COLOR
 	 && ps_global->VAR_QUOTE1_BACK_COLOR){
! 		gf_link_filter(gf_quote_test, gf_line_test_opt(color_a_quote, NULL));
 	 }
+ 	 else
+ 		gf_link_filter(gf_quote_test,gf_line_test_opt(select_quote, NULL));
 
 	 if(!(flgs & FM_NOWRAP)){
 		wrapflags = (flgs & FM_DISPLAY) ? (GFW_HANDLES|GFW_SOFTHYPHEN) : GFW_NONE;
***************
*** 1465,1491 ****
 color_signature(long int linenum, char *line, LT_INS_S **ins, void *is_in_sig)
 {
 struct variable *vars = ps_global->vars;
! int *in_sig_block;
 COLOR_PAIR *col = NULL;
 
 if(is_in_sig == NULL)
 return 0;
 
 in_sig_block = (int *) is_in_sig;
 
! if(!strcmp(line, SIGDASHES))
! *in_sig_block = START_SIG_BLOCK; 
! else if(*line == '\0')
 /* 
 * Suggested by Eduardo: allow for a blank line right after 
 * the sigdashes. 
 */
 *in_sig_block = (*in_sig_block == START_SIG_BLOCK)
 			 ? IN_SIG_BLOCK : OUT_SIG_BLOCK;
 else
 *in_sig_block = (*in_sig_block != OUT_SIG_BLOCK)
 			 ? IN_SIG_BLOCK : OUT_SIG_BLOCK;
 
 if(*in_sig_block != OUT_SIG_BLOCK
 && VAR_SIGNATURE_FORE_COLOR && VAR_SIGNATURE_BACK_COLOR
 && (col = new_color_pair(VAR_SIGNATURE_FORE_COLOR,
--- 1471,1558 ----
 color_signature(long int linenum, char *line, LT_INS_S **ins, void *is_in_sig)
 {
 struct variable *vars = ps_global->vars;
! int *in_sig_block, i, j,same_qstr = 0, plb;
 COLOR_PAIR *col = NULL;
+ static char GLine[NSTRING] = {'\0'};
+ static char PLine[NSTRING] = {'\0'};
+ static char PPLine[NSTRING] = {'\0'};
+ char NLine[NSTRING] = {'\0'};
+ char rqstr[NSTRING] = {'\0'};
+ char *p, *q;
+ static char *buf, buf2[NSTRING] = {'\0'};
+ QSTRING_S *qs;
+ static int qstrlen = 0;
 
 if(is_in_sig == NULL)
 return 0;
 
+ if (linenum > 0){
+ 	strncpy(PLine, GLine, sizeof(PLine));
+ 	PLine[sizeof(PLine)-1] = '\0';
+ }
+ 
+ if(p = strchr(tmp_20k_buf, '\015')) *p = '\0';
+ strncpy(NLine, tmp_20k_buf, sizeof(NLine));
+ NLine[sizeof(NLine) - 1] = '\0';
+ if (p) *p = '\015';
+ 
+ strncpy(GLine, line, sizeof(GLine));
+ GLine[sizeof(GLine) - 1] = '\0';
+ 
+ ps_global->list_qstr = default_qstr(ps_global->prefix && *ps_global->prefix 
+ 		? (void *) ps_global->prefix : (void *) ">", 0);
+ plb = line_isblank(ps_global->list_qstr, PLine, GLine, PPLine, NSTRING);
+ qs = do_quote_match(ps_global->list_qstr, GLine, NLine, PLine, rqstr, NSTRING, plb);
+ if(linenum > 0)
+ strncpy(PPLine, PLine, NSTRING);
+ strncpy(buf2, rqstr, NSTRING);
+ i = buf2 && buf2[0] ? strlen(buf2) : 0;
+ free_qs(&qs);
+ 
+ /* determine if buf and buf2 are the same quote string */
+ if (!struncmp(buf, buf2, qstrlen)){
+ for (j = qstrlen; buf2[j] && isspace((unsigned char)buf2[j]); j++);
+ if (!buf2[j] || buf2[j] == '|' || (buf2[j] == '*' && buf2[j+1] != '>'))
+ same_qstr++;
+ }
+ 
 in_sig_block = (int *) is_in_sig;
 
! if (*in_sig_block != OUT_SIG_BLOCK){
! if (line && *line && (strlen(line) >= qstrlen) && same_qstr)
! line += qstrlen;
! else if (strlen(line) < qstrlen)
! line += i;
! else if (!same_qstr)
! *in_sig_block = OUT_SIG_BLOCK;
! }
! else
! line += i;
! 
! if(!strcmp(line, SIGDASHES) || !strcmp(line, "--")){
! *in_sig_block = START_SIG_BLOCK;
! buf = (char *) fs_get((i + 1)*sizeof(char));
! buf = cpystr(buf2);
! qstrlen = i;
! }
! else if(*line == '\0'){
 /* 
 * Suggested by Eduardo: allow for a blank line right after 
 * the sigdashes. 
 */
 *in_sig_block = (*in_sig_block == START_SIG_BLOCK)
 			 ? IN_SIG_BLOCK : OUT_SIG_BLOCK;
+ }
 else
 *in_sig_block = (*in_sig_block != OUT_SIG_BLOCK)
 			 ? IN_SIG_BLOCK : OUT_SIG_BLOCK;
 
+ if (*in_sig_block == OUT_SIG_BLOCK){
+ qstrlen = 0; /* reset back in case there's another paragraph */
+ if (buf)
+ fs_give((void **)&buf);
+ }
+ 
 if(*in_sig_block != OUT_SIG_BLOCK
 && VAR_SIGNATURE_FORE_COLOR && VAR_SIGNATURE_BACK_COLOR
 && (col = new_color_pair(VAR_SIGNATURE_FORE_COLOR,
***************
*** 2045,2050 ****
--- 2112,2188 ----
 }
 
 
+ /* This filter gives a quote string of a line. It sends its reply back to the
+ calling filter in the tmp_20k_buf variable. This filter replies with
+ the full quote string including tailing spaces if any. It is the
+ responsibility of the calling filter to figure out if thos spaces are
+ useful for that filter or if they should be removed before doing any
+ useful work. For example, color_a_quote does not require the trailing
+ spaces, but gf_wrap does.
+ */
+ int
+ select_quote(long linenum, char *line, LT_INS_S **ins, void *local)
+ {
+ int i, plb, *code;
+ char rqstr[NSTRING] = {'\0'}, buf[NSTRING] = {'\0'};
+ char GLine[NSTRING] = {'\0'}, PLine[NSTRING] = {'\0'};
+ char PPLine[NSTRING] = {'\0'}, NLine[NSTRING] = {'\0'};
+ static char GLine1[NSTRING] = {'\0'};
+ static char PLine1[NSTRING] = {'\0'};
+ static char PPLine1[NSTRING] = {'\0'};
+ static char GLine2[NSTRING] = {'\0'};
+ static char PLine2[NSTRING] = {'\0'};
+ static char PPLine2[NSTRING] = {'\0'};
+ QSTRING_S *qs;
+ int buflen = NSTRING < SIZEOF_20KBUF ? NSTRING - 1: SIZEOF_20KBUF - 1;
+ int who, raw;
+ 
+ code = (int *)local;
+ who = code ? (*code & COLORAQUO) : 0; /* may I ask who is calling? */
+ raw = code ? (*code & RAWSTRING) : 0; /* return raw string */
+ strncpy(GLine, (who ? GLine1 : GLine2), buflen);
+ strncpy(PLine, (who ? PLine1 : PLine2), buflen);
+ strncpy(PPLine, (who ? PPLine1 : PPLine2), buflen);
+ 
+ if (linenum > 0)
+ strncpy(PLine, GLine, buflen);
+ 
+ strncpy(NLine, tmp_20k_buf, buflen);
+ 
+ if (line)
+ strncpy(GLine, line, buflen);
+ else
+ GLine[0] = '\0';
+ 
+ ps_global->list_qstr = default_qstr(ps_global->prefix && *ps_global->prefix 
+ 		? (void *) ps_global->prefix : (void *) ">", 0);
+ plb = line_isblank(ps_global->list_qstr, PLine, GLine, PPLine, NSTRING);
+ 
+ qs = do_quote_match(ps_global->list_qstr, GLine, NLine, PLine, rqstr, NSTRING, plb);
+ if (raw)
+ strncpy(buf, rqstr, NSTRING);
+ else
+ flatten_qstring(qs, buf, NSTRING);
+ if(qs)
+ 	record_quote_string(qs);
+ free_qs(&qs);
+ 
+ /* do not paint an extra level for a line with a >From string at the
+ * begining of it
+ */
+ if (buf[0]){
+ i = strlen(buf);
+ if (strlen(line) >= i + 6 && !strncmp(line+i-1,">From ", 6))
+ buf[i - 1] = '\0';
+ }
+ strncpy(tmp_20k_buf, buf, buflen);
+ if (linenum > 0)
+ strncpy((who ? PPLine1 : PPLine2), PLine, buflen);
+ strncpy((who ? GLine1 : GLine2), GLine, buflen);
+ strncpy((who ? PLine1 : PLine2), PLine, buflen);
+ return 1;
+ }
+ 
 
 #define	UES_LEN	12
 #define	UES_MAX	32
diff -rc alpine-2.22/pith/mailview.h alpine-2.22.fillpara/pith/mailview.h
*** alpine-2.22/pith/mailview.h	2020-01-19 01:32:19.614486993 -0700
--- alpine-2.22.fillpara/pith/mailview.h	2020-05-07 16:46:16.719304053 -0600
***************
*** 146,151 ****
--- 146,152 ----
 char	 *display_parameters(PARAMETER *);
 char	 *pine_fetch_header(MAILSTREAM *, long, char *, char **, long);
 int color_signature(long, char *, LT_INS_S **, void *);
+ int	 select_quote(long, char *, LT_INS_S **, void *);
 int	 scroll_handle_start_color(char *, size_t, int *);
 int	 scroll_handle_end_color(char *, size_t, int *, int);
 int width_at_this_position(unsigned char *, unsigned long);
diff -rc alpine-2.22/pith/osdep/color.c alpine-2.22.fillpara/pith/osdep/color.c
*** alpine-2.22/pith/osdep/color.c	2020-01-19 01:32:18.620506934 -0700
--- alpine-2.22.fillpara/pith/osdep/color.c	2020-05-07 23:52:12.301348731 -0600
***************
*** 32,38 ****
 
 #include <system.h>
 #include "./color.h"
! 
 
 
 /*
--- 32,40 ----
 
 #include <system.h>
 #include "./color.h"
! #include "./collate.h"
! #include "../charconv/utf8.h"
! #include "../../c-client/c-client.h"
 
 
 /*
***************
*** 92,94 ****
--- 94,1375 ----
 {
 return(pico_set_colors(col ? col->fg : NULL, col ? col->bg : NULL, flags));
 }
+ 
+ 
+ /* 
+ * Extended Justification support also does not belong here
+ * but otherwise webpine will not build, so we move everything
+ * here. Hopefully this will be the permanent place for these
+ * routines. These routines used to be in pico/word.c
+ */
+ #define NSTRING 256
+ #include "../../include/general.h"
+ 
+ /* Support of indentation of paragraphs */
+ #define is_indent_char(c) (((c) == '.' || (c) == '}' || (c) == RPAREN || \
+ 			 (c) == '*' || (c) == '+' || is_a_digit(c) || \
+ 			 ISspace(c) || (c) == '-' || \
+ 			 (c) == ']') ? 1 : 0)
+ #define allowed_after_digit(c,word,k) ((((c) == '.' && \
+ 			 allowed_after_period(next((word),(k)))) ||\
+ 				(c) == RPAREN || (c) == '}' || (c) == ']' ||\
+ 				 ISspace(c) || is_a_digit(c) || \
+ 				 ((c) == '-' ) && \
+ 				 allowed_after_dash(next((word),(k)))) \
+ 				? 1 : 0)
+ #define allowed_after_period(c)	 (((c) == RPAREN || (c) == '}' || (c) == ']' ||\
+ 				 ISspace(c) || (c) == '-' || \
+ 				 is_a_digit(c)) ? 1 : 0)
+ #define allowed_after_parenth(c) (ISspace(c) ? 1 : 0)
+ #define allowed_after_space(c)	 (ISspace(c) ? 1 : 0)
+ #define allowed_after_braces(c)	 (ISspace(c) ? 1 : 0)
+ #define allowed_after_star(c)	 ((ISspace(c) || (c) == RPAREN ||\
+ (c) == ']' || (c) == '}') ? 1 : 0)
+ #define allowed_after_dash(c)	 ((ISspace(c) || is_a_digit(c)) ? 1 : 0)
+ #define EOLchar(c)		 (((c) == '.' || (c) == ':' || (c) == '?' ||\
+ 					(c) == '!') ? 1 : 0)
+ 
+ 
+ /* Extended justification support */
+ #define is_cquote(c) ((c) == '>' || (c) == '|' || (c) == ']' || (c) == ':')
+ #define is_cword(c) ((((c) >= 'a') && ((c) <= 'z')) || \
+ (((c) >= 'A') && ((c) <= 'Z')) || \
+ (((c) >= '0') && ((c) <= '9')) || \
+ ((c) == ' ') || ((c) == '?') || \
+ ((c) == '@') || ((c) == '.') || \
+ ((c) == '!') || ((c) == '\'') || \
+ ((c) == ',') || ((c) == '\"') ? 1 : 0)
+ #define isaquote(c) ((c) == '\"' || (c) == '\'')
+ #define is8bit(c) ((((int) (c)) & 0x80) ? 1 : 0)
+ #define iscontrol(c) (iscntrl(((int) (c)) & 0x7f) ? 1 : 0)
+ #define forbidden(c) (((c) == '\"') || ((c) == '\'') || ((c) == '$') ||\
+ ((c) == ',') || ((c) == '.') || ((c) == '-') ||\
+ ((c) == LPAREN) || ((c) == '/')|| ((c) == '`') ||\
+ ((c) == '{') || ((c) == '\\') || (iscontrol((c))) ||\
+ (((c) >= '0') && ((c) <= '9')) || ((c) == '?'))
+ #define is_cletter(c) ((((c) >= 'a') && ((c) <= 'z'))) ||\
+ ((((c) >= 'A') && ((c) <= 'Z'))||\
+ is8bit(c))
+ #define is_cnumber(c) ((c) >= '0' && (c) <= '9')
+ #define allwd_after_word(c) (((c) == ' ') || ((c) == '>') || is_cletter(c))
+ #define allwd_after_qsword(c) (((c) != '\\') && ((c) != RPAREN) && ((c) != '/'))
+ #define before(word,i) (((i) > 0) ? (word)[(i) - 1] : 0)
+ #define next(w,i) ((((w)[(i)]) != 0) ? ((w)[(i) + 1]) : 0)
+ #define now(w,i) ((w)[(i)])
+ #define is_qsword(c) (((c) == ':') || ((c) == RPAREN) ? 1 : 0)
+ #define is_colon(c) (((c) == ':') ? 1 : 0)
+ #define is_rarrow(c) (((c) == '>') ? 1 : 0)
+ #define is_tilde(c) (((c) == '~') ? 1 : 0)
+ #define is_dash(c) (((c) == '-') ? 1 : 0)
+ #define is_pound(c) (((c) == '#') ? 1 : 0)
+ #define is_a_digit(c) ((((c) >= '0') && ((c) <= '9')) ? 1 : 0)
+ #define is_allowed(c) (is_cquote(c) || is_cword(c) || is_dash(c) || \
+ is_pound(c))
+ #define qs_allowed(a) (((a)->qstype != qsGdb) && ((a)->qstype != qsProg))
+ 
+ /* Internal justification functions */
+ QSTRING_S *is_quote(char **, char *, int);
+ QSTRING_S *qs_normal_part(QSTRING_S *);
+ QSTRING_S *qs_remove_trailing_spaces(QSTRING_S *);
+ QSTRING_S *trim_qs_from_cl(QSTRING_S *, QSTRING_S *, QSTRING_S *);
+ QSTRING_S *fix_qstring(QSTRING_S *, QSTRING_S *, QSTRING_S *);
+ QSTRING_S *fix_qstring_allowed(QSTRING_S *, QSTRING_S *, QSTRING_S *);
+ QSTRING_S *qs_add(char **, char *, QStrType, int, int, int, int);
+ QSTRING_S *remove_qsword(QSTRING_S *);
+ QSTRING_S *do_raw_quote_match(char **, char *, char *, char *, QSTRING_S **, QSTRING_S **);
+ void	 free_qs(QSTRING_S **);
+ int word_is_prog(char *);
+ int qstring_is_normal(QSTRING_S *);
+ int exists_good_part(QSTRING_S *);
+ int strcmp_qs(char *, char *);
+ int count_levels_qstring(QSTRING_S *);
+ int same_qstring(QSTRING_S *, QSTRING_S *);
+ int	 isaword(char *,int ,int);
+ int	 isamailbox(char *,int ,int);
+ int	 double_check_qstr(char *);
+ 
+ int
+ word_is_prog(char *word)
+ {
+ static char *list1[] = {"#include",
+ 			"#define",
+ 			"#ifdef",
+ 			"#ifndef",
+ 			"#elif",
+ 			"#if",
+ 			NULL};
+ static char *list2[] = {"#else",
+ 			"#endif",
+ 			 NULL};
+ int i, j = strlen(word), k, rv = 0;
+ 
+ for(i = 0; rv == 0 && list1[i] && (k = strlen(list1[i])) && k < j; i++)
+ if(!strncmp(list1[i], word, k) && ISspace(word[k]))
+ rv++;
+ 
+ if(rv)
+ return rv;
+ 
+ for(i = 0; rv == 0 && list2[i] && (k = strlen(list2[i])) && k <= j; i++)
+ if(!strncmp(list2[i], word, k) && (!word[k] || ISspace(word[k])))
+ rv++;
+ 
+ return rv;
+ }
+ 
+ /*
+ * This function creates a qstring pointer with the information that
+ * is_quote handles to it.
+ * Parameters:
+ * qs - User supplied quote string
+ * word - The line of text that the user is trying to read/justify
+ * beginw - Where we need to start copying from
+ * endw - Where we end copying
+ * offset - Any offset in endw that we need to account for
+ * typeqs - type of the string to be created
+ * neednext - boolean, indicating if we need to compute the next field
+ * of leave it NULL 
+ * 
+ * It is a mistake to call this function if beginw >= endw + offset.
+ * Please note the equality sign in the above inequality (this is because
+ * we always assume that qstring->value != "").
+ */ 
+ QSTRING_S *
+ qs_add(char **qs, char word[NSTRING], QStrType typeqs, int beginw, int endw, 
+ 	int offset, int neednext)
+ {
+ QSTRING_S *qstring, *nextqs;
+ int i;
+ 
+ qstring = (QSTRING_S *) malloc (sizeof(QSTRING_S));
+ memset (qstring, 0, sizeof(QSTRING_S));
+ qstring->qstype = qsNormal;
+ 
+ if (beginw == 0){
+ 	beginw = endw + offset;
+ 	qstring->qstype = typeqs;
+ }
+ 
+ nextqs = neednext ? is_quote(qs, word+beginw, 1) : NULL;
+ 
+ qstring->value = (char *) malloc((beginw+1)*sizeof(char));
+ strncpy(qstring->value, word, beginw);
+ qstring->value[beginw] = '\0';
+ 
+ qstring->next = nextqs;
+ 
+ return qstring;
+ }
+ 
+ int
+ qstring_is_normal(QSTRING_S *cl)
+ { 
+ for (;cl && (cl->qstype == qsNormal); cl = cl->next);
+ return cl ? 0 : 1;
+ }
+ 
+ /*
+ * Given a quote string, this function returns the part that is the leading
+ * normal part of it. (the normal part is the part that is tagged qsNormal,
+ * that is to say, the one that is not controversial at all (like qsString
+ * for example).
+ */
+ QSTRING_S *
+ qs_normal_part(QSTRING_S *cl)
+ {
+ 
+ if (!cl) /* nothing in, nothing out */
+ return cl;
+ 
+ if (cl->qstype != qsNormal)
+ free_qs(&cl);
+ 
+ if (cl)
+ cl->next = qs_normal_part(cl->next);
+ 
+ return cl;
+ }
+ 
+ /*
+ * this function removes trailing spaces from a quote string, but leaves the
+ * last one if there are trailing spaces
+ */ 
+ QSTRING_S *
+ qs_remove_trailing_spaces(QSTRING_S *cl)
+ {
+ QSTRING_S *rl = cl;
+ if (!cl) /* nothing in, nothing out */
+ return cl;
+ 
+ if (cl->next)
+ cl->next = qs_remove_trailing_spaces(cl->next);
+ else{
+ if (value_is_space(cl->value))
+ free_qs(&cl);
+ else{
+ int i, l;
+ i = l = strlen(cl->value) - 1;
+ while (cl->value && cl->value[i]
+ && ISspace(cl->value[i]))
+ i--;
+ i += (i < l) ? 2 : 1;
+ cl->value[i] = '\0';
+ }
+ }
+ return cl;
+ }
+ 
+ /*
+ * This function returns if two strings are the same quote string.
+ * The call is not symmetric. cl must preceed the line nl. This function
+ * should be called for comparing the last part of cl and nl.
+ */
+ int
+ strcmp_qs(char *valuecl, char *valuenl)
+ {
+ int j;
+ 
+ for (j = 0; valuecl[j] && (valuecl[j] == valuenl[j]); j++);
+ return !strcmp(valuecl, valuenl)
+ 	 || (valuenl[j] && value_is_space(valuenl+j)
+ 			&& value_is_space(valuecl+j)
+ 			&& strlenis(valuecl+j) >= strlenis(valuenl+j))
+ 	 || (!valuenl[j] && value_is_space(valuecl+j));
+ }
+ 
+ int
+ count_levels_qstring(QSTRING_S *cl)
+ {
+ int count;
+ for (count = 0; cl ; count++, cl = cl->next);
+ 
+ return count;
+ }
+ 
+ int
+ value_is_space(char *value)
+ {
+ for (; value && *value && ISspace(*value); value++);
+ 
+ return value && *value ? 0 : 1;
+ }
+ 
+ void
+ free_qs(QSTRING_S **cl)
+ {
+ if (!(*cl))
+ return;
+ 
+ if ((*cl)->next)
+ free_qs(&((*cl)->next));
+ 
+ (*cl)->next = (QSTRING_S *) NULL;
+ 
+ if ((*cl)->value)
+ free((void *)(*cl)->value);
+ (*cl)->value = (char *) NULL;
+ free((void *)(*cl));
+ *cl = (QSTRING_S *) NULL;
+ }
+ 
+ /*
+ * This function returns the number of agreements between
+ * cl and nl. The call is not symmetric. cl must be the line
+ * preceding nl.
+ */
+ int
+ same_qstring(QSTRING_S *cl, QSTRING_S *nl)
+ {
+ int same = 0, done = 0;
+ 
+ for (;cl && nl && !done; cl = cl->next, nl = nl->next)
+ if (cl->qstype == nl->qstype
+ && (!strcmp(cl->value, nl->value)
+ || (!cl->next && strcmp_qs(cl->value, nl->value))))
+ 	same++;
+ else
+ 	done++;
+ return same;
+ }
+ 
+ QSTRING_S *
+ trim_qs_from_cl(QSTRING_S *cl, QSTRING_S *nl, QSTRING_S *pl)
+ {
+ QSTRING_S *cqstring = pl ? pl : nl;
+ QSTRING_S *tl = pl ? pl : nl;
+ int p, c;
+ 
+ if (qstring_is_normal(tl))
+ 	return tl;
+ 
+ p = same_qstring(pl ? pl : cl, pl ? cl : nl);
+ 
+ for (c = 1; c < p; c++, cl = cl->next, tl = tl->next);
+ 
+ /*
+ * cl->next and tl->next differ, it may be because cl->next does not
+ * exist or tl->next does not exist or simply both exist but are
+ * different. In this last case, it may be that cl->next->value is made
+ * of spaces. If this is the case, tl advances once more.
+ */
+ 
+ if (tl->next){
+ 	if (cl && cl->next && value_is_space(cl->next->value))
+ 	 tl = tl->next;
+ 	if (tl->next)
+ 	 free_qs(&(tl->next));
+ }
+ 
+ if (!p)
+ free_qs(&cqstring);
+ 
+ return cqstring;
+ }
+ 
+ /* This function trims cl so that it returns a real quote string based
+ * on information gathered from the previous and next lines. pl and cl are
+ * also trimmed, but that is done in another function, not here.
+ */
+ QSTRING_S *
+ fix_qstring(QSTRING_S *cl, QSTRING_S *nl, QSTRING_S *pl)
+ {
+ QSTRING_S *cqstring = cl, *nqstring = nl, *pqstring = pl;
+ int c, n;
+ 
+ if (qstring_is_normal(cl))
+ return cl;
+ 
+ c = count_levels_qstring(cl);
+ n = same_qstring(cl,nl);
+ 
+ /* by the definition of n and c above we have n <= c */
+ 
+ if (!n){ /* no next line or no agreement with next line */
+ int p = same_qstring(pl, cl); /* number of agreements between pl and cl */
+ QSTRING_S *tl; /* test line */
+ 
+ /*
+ * Here p <= c, so either p < c or p == c. If p == c, we are done,
+ * and return cl. If not, there are two cases, either p == 0 or
+ * 0 < p < c. In the first case, we do not have enough evidence
+ * to return anything other than the normal part of cl, in the second
+ * case we can only return p levels of cl.
+ */
+ 
+ if (p == c)
+ 	tl = cqstring;
+ else{
+ if (p){
+ 	 for (c = 1; c < p; c++)
+ 	 cl = cl->next;
+ 	 free_qs(&(cl->next));
+ 	 tl = cqstring;
+ }
+ else{
+ 	 int done = 0;
+ 	 QSTRING_S *al = cl; /* another line */ 
+ 	/*
+ 	 * Ok, we really don't have enough evidence to return anything,
+ 	 * different from the normal part of cl, but it could be possible
+ 	 * that we may want to accept the not-normal part, so we better
+ 	 * make an extra test to determine what needs to be freed
+ 	 */
+ 	 while (pl && cl && cl->qstype == pl->qstype
+ 		 && !strucmp(cl->value, pl->value)){
+ 		cl = cl->next;
+ 		pl = pl->next;
+ 	 }
+ if (pl && cl && cl->qstype == pl->qstype
+ && strcmp_qs(pl->value, cl->value))
+ cl = cl->next; /* next level differs only in spaces */
+ while (!done){
+ while (cl && cl->qstype == qsNormal)
+ cl = cl->next;
+ if (cl){
+ if ((cl->qstype == qsString)
+ && (cl->value[strlen(cl->value) - 1] == '>'))
+ cl = cl->next;
+ else done++;
+ }
+ else done++;
+ }
+ if (al == cl){
+ free_qs(&(cl));
+ tl = cl;
+ }
+ else {
+ while (al && (al->next != cl))
+ al = al->next;
+ cl = al;
+ if (cl && cl->next)
+ free_qs(&(cl->next));
+ tl = cqstring;
+ }
+ }
+ }
+ return tl;
+ }
+ 
+ /* so n <= c (see above) hence n < c or n = c. If n < c then n+1 <= c, so we 
+ * either have n == c or n + 1 < c or n + 1 == c. We analyze each case in the
+ * following code
+ */
+ 
+ if (n + 1 < c){ /* if there are not enough agreements */
+ int p = same_qstring(pl, cl); /* number of agreement between pl and cl */
+ QSTRING_S *tl; /* test line */
+ /*
+ * There's no way we can use cl in this case, but we can use
+ * part of cl, this is if pl does not have more agreements
+ * with cl.
+ */ 
+ if (p == c)
+ tl = cqstring;
+ else{
+ int m = p < n ? n : p;
+ for (c = 1; c < m; c++){
+ pl = pl ? pl->next : (QSTRING_S *) NULL;
+ nl = nl ? nl->next : (QSTRING_S *) NULL;
+ cl = cl->next;
+ }
+ if (p == n && pl && pl->next && nl && nl->next
+ && ((cl->next->qstype == pl->next->qstype)
+ || (cl->next->qstype == nl->next->qstype))
+ && (strcmp_qs(cl->next->value, pl->next->value)
+ || strcmp_qs(pl->next->value, cl->next->value)
+ || strcmp_qs(cl->next->value, nl->next->value)
+ || strcmp_qs(nl->next->value, cl->next->value)))
+ cl = cl->next; /* next level differs only in spaces */
+ if (cl->next)
+ free_qs(&(cl->next));
+ tl = cqstring;
+ }
+ return tl;
+ }
+ if (n + 1 == c){
+ int p = same_qstring(pl, cl);
+ QSTRING_S *tl; /* test line */
+ 
+ /*
+ * p <= c, so p <= n+1, which means p < n + 1 or p == n + 1.
+ * If p < n + 1, then p <= n.
+ * so we have three possibilities:
+ * p == n + 1 or p == n or p < n.
+ * In the first case we copy p == n + 1 == c levels, in the second
+ * and third case we copy n levels, and check if we can copy the
+ * n + 1 == c level.
+ */
+ if (p == n + 1) /* p == c, in the above sense of c */
+ tl = cl; /* use cl, this is enough evidence */
+ else{
+ for (c = 1; c < n; c++)
+ cl = cl->next;
+ /*
+ * Here c == n, we only have one more level of cl, and at least one
+ * more level of nl
+ */
+ if (cl->next->qstype == qsNormal)
+ cl = cl->next;
+ if (cl->next)
+ free_qs(&(cl->next));
+ tl = cqstring;
+ }
+ return tl;
+ }
+ /* else n == c, Yeah!!! */
+ return cqstring;
+ }
+ 
+ QSTRING_S *
+ fix_qstring_allowed(QSTRING_S *cl, QSTRING_S *nl, QSTRING_S *pl)
+ {
+ if(!cl)
+ return (QSTRING_S *) NULL;
+ 
+ if (qs_allowed(cl))
+ cl->next = fix_qstring_allowed(cl->next, (nl ? nl->next : NULL),
+ (pl ? pl->next : NULL));
+ else
+ if((nl && cl->qstype == nl->qstype) || (pl && cl->qstype == pl->qstype)
+ || (!nl && !pl))
+ free_qs(&cl);
+ return cl;
+ }
+ 
+ /*
+ * This function flattens the quote string returned to us by is_quote. A
+ * crash in this function implies a bug elsewhere.
+ */
+ void
+ flatten_qstring(QSTRING_S *qs, char *buff, int bufflen)
+ { 
+ int i, j; 
+ if(!buff || bufflen <= 0)
+ return;
+ 
+ for (i = 0; qs; qs = qs->next)
+ for (j = 0; i < bufflen - 1
+ && (qs->value[j]) && (buff[i++] = qs->value[j]); j++);
+ buff[i] = '\0';
+ }
+ 
+ extern int list_len;
+ 
+ 
+ int
+ double_check_qstr(char *q)
+ {
+ if(!q || !*q)
+ return 0;
+ 
+ return (*q == '#') ? 1 : 0;
+ }
+ 
+ /*
+ * Given a string, we return the position where the function thinks that
+ * the quote string is over, if you are ever thinking of fixing something,
+ * you got to the right place. Memory freed by caller. Experience shows
+ * that it only makes sense to initialize memory when we need it, not at
+ * the start of this function.
+ */
+ QSTRING_S *
+ is_quote (char **qs,char *word, int been_here)
+ {
+ int i = 0, j, nxt, prev, finished = 0, offset;
+ unsigned char c;
+ QSTRING_S *qstring = (QSTRING_S *) NULL;
+ 
+ if (word == NULL || word[0] == '\0')
+ return (QSTRING_S *) NULL;
+ 
+ while (!finished){
+ /*
+ * Before we apply our rules, let's advance past the quote string
+ * given by the user, this will avoid not recognition of the
+ * user's indent string and application of the arbitrary rules
+ * below. Notice that this step may bring bugs into this
+ * procedure, but these bugs will only appear if the indent string
+ * is really really strange and the text to be justified
+ * cooperates a lot too, so in general this will not be a problem.
+ * If you are concerned about this bug, simply remove the
+ * following lines after this comment and before the "switch"
+ * command below and use a more normal quote string!.
+ */
+ for(j = 0; j < list_len; j++){
+ 	 if(!double_check_qstr(qs[j])){
+ 	 i += advance_quote_string(qs[j], word, i);
+ 	 if (!word[i]) /* went too far? */
+ 	 return qs_add(qs, word, qsNormal, 0, i, 0, 0);
+ 	 }
+ 	 else
+ 	 break;
+ }
+ 
+ switch (c = (unsigned char) now(word,i)){
+ case NBSP:
+ case TAB :
+ case ' ' : { QSTRING_S *nextqs, *d;
+ 
+ for (; ISspace(word[i]); i++); /* FIX ME */
+ nextqs = is_quote(qs,word+i, 1);
+ /*
+ * Merge qstring and nextqs, since this is an artificial
+ * separation, unless nextqs is of different type.
+ * What this means in practice is that if
+ * qs->qstype == qsNormal and qs->next != NULL, then
+ * qs->next->qstype != qsNormal.
+ *
+ * Can't use qs_add to merge because it could lead
+ * to an infinite loop (e.g a line "^ ^").
+ */
+ i += nextqs && nextqs->qstype == qsNormal
+ ? strlen(nextqs->value) : 0;
+ qstring = (QSTRING_S *) malloc (sizeof(QSTRING_S));
+ memset (qstring, 0, sizeof(QSTRING_S));
+ qstring->value = (char *) malloc((i+1)*sizeof(char));
+ strncpy(qstring->value, word, i);
+ qstring->value[i] = '\0';
+ qstring->qstype = qsNormal;
+ 		 if(nextqs && nextqs->qstype == qsNormal){
+ 			d = nextqs->next;
+ 			nextqs->next = NULL;
+ 			qstring->next = d;
+ 			free_qs(&nextqs);
+ 		 }
+ 		 else
+ 		 qstring->next = nextqs;
+ 
+ 		 return qstring;
+ 		 }
+ break;
+ case RPAREN: /* parenthesis ')' */
+ if ((i != 0) || ((i == 0) && been_here))
+ i++;
+ else
+ if (i == 0)
+ return qs_add(qs, word, qsChar, i, i, 1, 1);
+ else
+ finished++;
+ break;
+ 
+ case ':': /* colon */
+ case '~': nxt = next(word,i);
+ if ((is_tilde(c) && (nxt == '/'))
+ || (is_colon(c) && !is_cquote(nxt)
+ && !is_cword(nxt) && nxt != RPAREN))
+ finished++;
+ else if (is_cquote(c)
+ || is_cquote(nxt)
+ || (c != '~' && nxt == RPAREN)
+ || (i != 0 && ISspace(nxt))
+ || is_cquote(prev = before(word,i))
+ || (ISspace(prev) && !is_tilde(c))
+ || (is_tilde(c) && nxt != '/'))
+ i++;
+ else if (i == 0 && been_here)
+ return qs_add(qs, word, qsChar, i, i, 1, 1);
+ else
+ finished++;
+ break;
+ 
+ case '<' :
+ case '=' :
+ case '-' : offset = is_cquote(nxt = next(word,i)) ? 2
+ : (nxt == c && is_cquote(next(word,i+1))) ? 3 : -1;
+ 
+ if (offset > 0)
+ return qs_add(qs, word, qsString, i, i, offset, 1);
+ else
+ finished++;
+ break;
+ 
+ case '[' :
+ case '+' : /* accept +>, *> */
+ case '*' : if (is_rarrow(nxt = next(word, i)) || /* stars */
+ (ISspace(nxt) && is_rarrow(next(word,i+1))))
+ i++;
+ else
+ finished++;
+ break;
+ 
+ case '^' :
+ case '!' :
+ case '%' : if (next(word,i) != c)
+ return qs_add(qs, word, qsChar, i, i+1, 0, 1);
+ else
+ finished++;
+ break;
+ 
+ case '_' : if(ISspace(next(word, i)))
+ return qs_add(qs, word, qsChar, i, i+1, 0, 1);
+ else
+ finished++;
+ break;
+ 
+ case '#' : { QStrType qstype = qsChar;
+ if((nxt = next(word, i)) != c){
+ if(isdigit((int) nxt))
+ qstype = qsGdb;
+ else
+ if(word_is_prog(word))
+ qstype = qsProg;
+ return qs_add(qs, word, qstype, i, i+1, 0, 1);
+ }
+ else
+ finished++;
+ break;
+ }
+ 
+ default:
+ if (is_cquote(c))
+ i++;
+ else if (is_cletter(c)){
+ for (j = i; (is_cletter(nxt = next(word,j)) || is_cnumber(nxt))
+ && !(ISspace(nxt));j++);
+ /*
+ * The whole reason why we are splitting the quote
+ * string is so that we will be able to accept quote
+ * strings that are strange in some way. Here we got to
+ * a point in which a quote string might exist, but it
+ * could be strange, so we need to create a "next" field
+ * for the quote string to warn us that something
+ * strange is coming. We need to confirm if this is a
+ * good choice later. For now we will let it pass.
+ */
+ if (isaword(word,i,j) || isamailbox(word,i,j)){
+ int offset;
+ QStrType qstype;
+ 
+ offset = (is_cquote(c = next(word,j))
+ || (c == RPAREN)) ? 2
+ : ((ISspace(c)
+ && is_cquote(next(word,j+1))) ? 3 : -1);
+ 
+ qstype = (is_cquote(c) || (c == RPAREN))
+ ? (is_qsword(c) ? qsWord : qsString)
+ : ((ISspace(c) && is_cquote(next(word,j+1)))
+ ? (is_qsword(next(word,j+1))
+ ? qsWord : qsString)
+ : qsString);
+ 
+ /*
+ * qsWords are valid quote strings only when
+ * they are followed by text.
+ */
+ if (offset > 0 && qstype == qsWord &&
+ !allwd_after_qsword(now(word,j + offset)))
+ offset = -1;
+ 
+ if (offset > 0)
+ return qs_add(qs, word, qstype, i, j, offset, 1);
+ }
+ finished++;
+ }
+ else{
+ 	 if(i > 0)
+ 		return qs_add(qs, word, qsNormal, 0, i, 0, 1);
+ 	 else if(!forbidden(c))
+ return qs_add(qs, word, qsChar, 0, 1, 0, 1);
+ else /* chao pescao */
+ finished++;
+ }
+ break;
+ } /* End Switch */
+ } /* End while */
+ if (i > 0)
+ qstring = qs_add(qs, word, qsNormal, 0, i, 0, 0);
+ return qstring;
+ }
+ 
+ int
+ isaword(char word[NSTRING], int i, int j)
+ {
+ return i <= j && is_cletter(word[i]) ?
+ (i < j ? isaword(word,i+1,j) : 1) : 0;
+ }
+ 
+ int
+ isamailbox(char word[NSTRING], int i, int j)
+ {
+ return i <= j && (is_cletter(word[i]) || is_a_digit(word[i])
+ || word[i] == '.')
+ ? (i < j ? isamailbox(word,i+1,j) : 1) : 0;
+ }
+ 
+ /*
+ This routine removes the last part that is qsword or qschar that is not
+ followed by a normal part. This means that if a qsword or qschar is
+ followed by a qsnormal (or qsstring), we accept the qsword (or qschar)
+ as part of a quote string.
+ */
+ QSTRING_S *
+ remove_qsword(QSTRING_S *cl)
+ {
+ QSTRING_S *np = cl;
+ QSTRING_S *cp = np; /* this variable trails cl */
+ 
+ while(1){
+ while (cl && cl->qstype == qsNormal)
+ cl = cl->next;
+ 
+ if (cl){
+ if (((cl->qstype == qsWord) || (cl->qstype == qsChar))
+ && !exists_good_part(cl)){
+ if (np == cl) /* qsword or qschar at the beginning */
+ free_qs(&cp);
+ else{
+ while (np->next != cl)
+ np = np->next;
+ free_qs(&(np->next));
+ }
+ break;
+ }
+ else
+ cl = cl->next;
+ }
+ else
+ break;
+ }
+ return cp;
+ }
+ 
+ int
+ exists_good_part (QSTRING_S *cl)
+ {
+ return (cl ? (((cl->qstype != qsWord) && (cl->qstype != qsChar)
+ && qs_allowed(cl) && !value_is_space(cl->value))
+ ? 1 : exists_good_part(cl->next))
+ 	 : 0);
+ }
+ 
+ int
+ line_isblank(char **q, char *GLine, char *NLine, char *PLine, int buflen)
+ {
+ int n = 0;
+ QSTRING_S *cl;
+ char qstr[NSTRING];
+ 
+ cl = do_raw_quote_match(q, GLine, NLine, PLine, NULL, NULL);
+ 
+ flatten_qstring(cl, qstr, NSTRING);
+ 
+ free_qs(&cl);
+ 
+ for(n = strlen(qstr); n < buflen && GLine[n]; n++)
+ if(!ISspace((unsigned char) GLine[n]))
+ return(FALSE);
+ 
+ return(TRUE);
+ }
+ 
+ QSTRING_S *
+ do_raw_quote_match(char **q, char *GLine, char *NLine, char *PLine, QSTRING_S **nlp, QSTRING_S **plp)
+ {
+ QSTRING_S *cl, *nl = NULL, *pl = NULL;
+ char nbuf[NSTRING], pbuf[NSTRING], buf[NSTRING];
+ int emptypl = 0, emptynl = 0;
+ 
+ if (!(cl = is_quote(q, GLine, 0))) /* if nothing in, nothing out */
+ return cl;
+ 
+ nl = is_quote(q, NLine, 0); /* Next Line */
+ if (nlp) *nlp = nl;
+ pl = is_quote(q, PLine, 0); /* Previous Line */
+ if (plp) *plp = pl;
+ /*
+ * If there's nothing in the preceeding or following line
+ * there is not enough information to accept it or discard it. In this
+ * case it's likely to be an isolated line, so we better accept it
+ * if it does not look like a word.
+ */ 
+ flatten_qstring(pl, pbuf, NSTRING);
+ emptypl = (!PLine || !PLine[0] ||
+ (pl && value_is_space(pbuf)) && !PLine[strlen(pbuf)]) ? 1 : 0;
+ if (emptypl){
+ flatten_qstring(nl, nbuf, NSTRING);
+ emptynl = (!NLine || !NLine[0] ||
+ (nl && value_is_space(nbuf) && !NLine[strlen(nbuf)])) ? 1 : 0;
+ if (emptynl){
+ cl = remove_qsword(cl);
+ if((cl = fix_qstring_allowed(cl, NULL, NULL)) != NULL)
+ cl = qs_remove_trailing_spaces(cl);
+ free_qs(&nl);
+ free_qs(&pl);
+ if(nlp) *nlp = NULL;
+ if(plp) *plp = NULL;
+ 
+ return cl;
+ }
+ }
+ 
+ /*
+ * If either cl, nl or pl contain suspicious characters that may make
+ * them (or not) be quote strings, we need to fix them, so that the
+ * next pass will be done correctly.
+ */
+ 
+ cl = fix_qstring(cl, nl, pl);
+ nl = trim_qs_from_cl(cl, nl, NULL);
+ pl = trim_qs_from_cl(cl, NULL, pl);
+ if((cl = fix_qstring_allowed(cl, nl, pl)) != NULL){
+ nl = trim_qs_from_cl(cl, nl, NULL);
+ pl = trim_qs_from_cl(cl, NULL, pl);
+ }
+ else{
+ free_qs(&nl);
+ free_qs(&pl);
+ }
+ if(nlp) 
+ *nlp = nl;
+ else
+ free_qs(&nl);
+ if(plp)
+ *plp = pl;
+ else
+ free_qs(&pl);
+ return cl;
+ }
+ 
+ QSTRING_S *
+ do_quote_match(char **q, char *GLine, char *NLine, char *PLine, char *rqstr, 
+ int rqstrlen, int plb)
+ {
+ QSTRING_S *cl, *nl = NULL, *pl = NULL;
+ int c, n, p,i, j, NewP, NewC, NewN, clength, same = 0;
+ char nbuf[NSTRING], pbuf[NSTRING], buf[NSTRING];
+ 
+ if(rqstr)
+ *rqstr = '\0';
+ 
+ /* if nothing in, nothing out */
+ cl = do_raw_quote_match(q, GLine, NLine, PLine, &nl, &pl);
+ if(cl == NULL){
+ free_qs(&nl);
+ free_qs(&pl);
+ return cl;
+ }
+ 
+ flatten_qstring(cl, rqstr, rqstrlen);
+ flatten_qstring(cl, buf, NSTRING);
+ flatten_qstring(nl, nbuf, NSTRING);
+ flatten_qstring(pl, pbuf, NSTRING);
+ 
+ /*
+ * Once upon a time, is_quote used to return the length of the quote
+ * string that it had found. One day, not long ago, black hand came
+ * and changed all that, and made is_quote return a quote string
+ * divided in several fields, making the algorithm much more
+ * complicated. Fortunately black hand left a few comments in the
+ * source code to make it more understandable. Because of this change
+ * we need to compute the lengths of the quote strings separately
+ */
+ c = buf && buf[0] ? strlen(buf) : 0;
+ n = nbuf && nbuf[0] ? strlen(nbuf) : 0;
+ p = pbuf && pbuf[0] ? strlen(pbuf) : 0;
+ /*
+ * When quote strings contain only blank spaces (ascii code 32) the
+ * above count is equal to the length of the quote string, but if
+ * there are TABS, the length of the quote string as seen by the user
+ * is different than the number that was just computed. Because of
+ * this we demand a recount (hmm.. unless you are in Florida, where
+ * recounts are forbidden)
+ */
+ NewP = strlenis(pbuf);
+ NewC = strlenis(buf);
+ NewN = strlenis(nbuf);
+ 
+ /*
+ * For paragraphs with spaces in the first line, but no space in the
+ * quote string of the second line, we make sure we choose the quote
+ * string without a space at the end of it.
+ */
+ if ((NLine && !NLine[0])
+ && ((PLine && !PLine[0])
+ || (((same = same_qstring(pl, cl)) != 0)
+ && (same != count_levels_qstring(cl)))))
+ cl = qs_remove_trailing_spaces(cl);
+ else
+ if (NewC > NewN){
+ int agree = 0;
+ for (j = 0; (j < n) && (GLine[j] == NLine[j]); j++);
+ clength = j;
+ /* clength is the common length in which Gline and Nline agree */
+ /* j < n means that they do not agree fully */
+ /* GLine = " \tText"
+ NLine = " Text" */
+ if(j == n)
+ agree++;
+ if (clength < n){ /* see if buf and nbuf are padded with spaces and tabs */
+ for (i = clength; i < n && ISspace(NLine[i]); i++);
+ if (i == n){/* padded NLine until the end of spaces? */
+ for (i = clength; i < c && ISspace(GLine[i]); i++);
+ if (i == c) /* Padded CLine until the end of spaces? */
+ agree++;
+ }
+ }
+ if (agree){
+ 	 for (j = clength; j < c && ISspace(GLine[j]); j++);
+ 	 if (j == c){
+ /*
+ * If we get here, it means that the current line has the same
+ * quote string (visually) than the next line, but both of them
+ * are padded with different amount of TABS or spaces at the end.
+ * The current line (GLine) has more spaces/TABs than the next
+ * line. This is the typical situation that is found at the
+ * begining of a paragraph. We need to check this, however, by
+ * checking the previous line. This avoids that we confuse
+ * ourselves with being in the last line of a paragraph.
+ * Example when it should not free_qs(cl)
+ * " Text in Paragraph 1" (PLine)
+ * " Text in Paragraph 1" (GLine)
+ * " Other Paragraph Number 2" (NLine)
+ *
+ * Example when it should free_qs(cl):
+ * ":) " (PLine) p = 3, j = 3
+ * ":) Text" (GLine) c = 5
+ * ":) More text" (NLine) n = 3
+ *
+ * Example when it should free_qs(cl):
+ * ":) " (PLine) p = 3, j = 3
+ * ":) > > > Text" (GLine) c = 11
+ * ":) > > > More text" (NLine) n = 9
+ *
+ * Example when it should free_qs(cl):
+ * ":) :) " (PLine) p = 6, j = 3
+ * ":) > > > Text" (GLine) c = 11
+ * ":) > > > More text" (NLine) n = 9
+ *
+ * Example when it should free_qs(cl):
+ * ":) > > > " (PLine) p = 13, j = 11
+ * ":) > > > Text" (GLine) c = 11
+ * ":) > > > More text" (NLine) n = 9
+ *
+ * The following example is very interesting. The "Other Text"
+ * line below should free the quote string an make it equal to the
+ * quote string of the line below it, but any algorithm trying
+ * to advance past that line should make it stop there, so
+ * we need one more check, to check the raw quote string and the
+ * processed quote string at the same time.
+ * FREE qs in this example.
+ * " Some Text" (PLine) p = 3, j = 0
+ * "\tOther Text" (GLine) c = 1
+ * " More Text" (NLine) n = 3
+ *
+ */
+ for (j = 0; (j < p) && (GLine[j] == PLine[j]); j++);
+ if ((p != c || j != p) && NLine[n])
+ if(!get_indent_raw_line(q, PLine, nbuf, NSTRING, p, plb)
+ || NewP + strlenis(nbuf) != NewC){
+ free_qs(&cl);
+ free_qs(&pl);
+ return nl;
+ }
+ }
+ }
+ }
+ 
+ free_qs(&nl);
+ free_qs(&pl);
+ 
+ return cl;
+ }
+ 
+ /*
+ * Given a line, an initial position, and a quote string, we advance the
+ * current line past the quote string, including arbitraty spaces
+ * contained in the line, except that it removes trailing spaces. We do
+ * not handle TABs, if any, contained in the quote string. At least not
+ * yet.
+ *
+ * Arguments: q - quote string
+ * l - a line to process
+ * i - position in the line to start processing. i = 0 is the
+ * begining of that line.
+ */
+ int
+ advance_quote_string(char *q, char l[NSTRING], int i)
+ {
+ int n = 0, j = 0, is = 0, es = 0;
+ int k, m, p, adv;
+ char qs[NSTRING] = {'\0'};
+ if(!q || !*q)
+ return(0);
+ for (p = strlen(q); (p > 0) && (q[p - 1] == ' '); p--, es++);
+ if (!p){ /* string contains only spaces */
+ for (k = 0; ISspace(l[i + k]); k++);
+ k -= k % es;
+ return k;
+ }
+ for (is = 0; ISspace(q[is]); is++); /* count initial spaces */ 
+ for (m = 0 ; is + m < p ; m++)
+ qs[m] = q[is + m]; /* qs = quote string without any space at the end */
+ /* advance as many spaces as there are at the begining */
+ for (k = 0; ISspace(l[i + j]); k++, j++);
+ /* now find the visible string in the line */
+ for (m = 0; qs[m] && l[i + j] == qs[m]; m++, j++);
+ if (!qs[m]){ /* no match */
+ /*
+ * So far we have advanced at least "is" spaces, plus the visible
+ * string "qs". Now we need to advance the trailing number of
+ * spaces "es". If we can do that, we have found the quote string.
+ */
+ for (p = 0; ISspace(l[i + j + p]); p++);
+ adv = advance_quote_string(q, l, i + j + ((p < es) ? p : es));
+ n = ((p < es) ? 0 : es) + k + m + adv;
+ }
+ return n;
+ }
+ 
+ /*
+ * This function returns the effective length in screen of the quote
+ * string. If the string contains a TAB character, it is added here, if
+ * not, the length returned is the length of the string
+ */
+ int strlenis(char *qstr)
+ {
+ int i, rv = 0; 
+ for (i = 0; qstr && qstr[i]; i++)
+ rv += ((qstr[i] == TAB) ? (~rv & 0x07) + 1 : 1);
+ return rv;
+ }
+ 
+ int
+ is_indent (char word[NSTRING], int plb)
+ {
+ int i = 0, finished = 0, j, k, digit = 0, bdigits = -1, alpha = 0;
+ unsigned char c, nxt;
+ 
+ if (!word || !word[0])
+ return i;
+ 
+ for (i = 0, j = 0; ISspace(word[i]); i++, j++);
+ while ((i < NSTRING - 2) && !finished){
+ switch (c = (unsigned char) now(word,i)){
+ case NBSP:
+ case TAB :
+ case ' ' : for (; ISspace(word[i]); i++);
+ if (!is_indent_char(now(word,i)))
+ finished++;
+ break;
+ 
+ case '+' :
+ case '.' :
+ case ']' :
+ case '*' :
+ case '}' :
+ case '-' :
+ case RPAREN:
+ nxt = (unsigned char) next(word,i);
+ if ((c == '.' && allowed_after_period(nxt) && alpha)
+ || (c == '*' && allowed_after_star(nxt))
+ || (c == '}' && allowed_after_braces(nxt))
+ || (c == '-' && allowed_after_dash(nxt))
+ || (c == '+' && allowed_after_dash(nxt))
+ || (c == RPAREN && allowed_after_parenth(nxt))
+ || (c == ']' && allowed_after_parenth(nxt)))
+ i++;
+ else
+ finished++;
+ break;
+ 
+ case 0xE2: /* bullet? */
+ 		 nxt = (unsigned char) next(word,i);
+ 		 if(nxt == 0x80){
+ 		 nxt = (unsigned char) next(word,i+1);
+ 		 if(nxt == 0xA2){
+ 			nxt = (unsigned char) next(word,i+2);
+ 			if(allowed_after_star(nxt))
+ 			 i += 3;
+ 			else
+ 			 finished++;
+ 		 }
+ 		 else finished++;
+ 		 }
+ 		 else finished++;
+ break;
+ 
+ default : if (is_a_digit(c) && plb){
+ if (bdigits < 0)
+ bdigits = i; /* first digit */
+ for (k = i; is_a_digit(now(word,k)); k++);
+ if (k - bdigits > 2){ /* more than 2 digits? */
+ i = bdigits; /* too many! */
+ finished++;
+ }
+ else{
+ if(allowed_after_digit(now(word,k),word,k)){
+ alpha++;
+ i = k;
+ }
+ else{
+ i = bdigits;
+ finished++;
+ }
+ }
+ }
+ else
+ finished++;
+ break;
+ 
+ }
+ }
+ if (i == j)
+ i = 0; /* there must be something more than spaces in an indent string */
+ return i;
+ }
+ 
+ int
+ get_indent_raw_line(char **q, char *GLine, char *buf, int buflen, int k, int plb)
+ {
+ int i, j;
+ char testline[1024];
+ 
+ if(k > 0){
+ 	for(j = 0; GLine[j] != '\0'; j++){
+ 	 testline[j] = GLine[j];
+ 	 testline[j+1] = '\0';
+ 	 if(strlenis(testline) >= strlenis(buf))
+ 	 break;
+ 	}
+ 	k = ++j; /* reset k */
+ }
+ i = is_indent(GLine+k, plb);
+ 
+ for (j = 0; j < i && j < buflen && (buf[j] = GLine[j + k]); j++);
+ buf[j] = '\0';
+ 
+ return i;
+ }
+ 
+ /* support for remembering quote strings across messages */
+ char **allowed_qstr = NULL;
+ int list_len = 0;
+ 
+ void
+ free_allowed_qstr(void)
+ {
+ int i;
+ char **q = allowed_qstr;
+ 
+ if(q == NULL)
+ return;
+ 
+ for(i = 0; i < list_len; i++)
+ fs_give((void **)&q[i]);
+ 
+ fs_give((void **)q);
+ list_len = 0;
+ }
+ 
+ void
+ add_allowed_qstr(void *q, int type)
+ {
+ int i;
+ 
+ if(allowed_qstr == NULL){
+ allowed_qstr = malloc(sizeof(char *));
+ list_len = 0;
+ }
+ 
+ if(type == 0){
+ allowed_qstr[list_len] = malloc((1+strlen((char *)q))*sizeof(char));
+ strcpy(allowed_qstr[list_len], (char *)q);
+ }
+ else
+ allowed_qstr[list_len] = (char *) ucs4_to_utf8_cpystr((UCS *)q);
+ 
+ fs_resize((void **)&allowed_qstr, (++list_len + 1)*sizeof(char *));
+ allowed_qstr[list_len] = NULL;
+ }
+ 
+ void
+ record_quote_string (QSTRING_S *qs)
+ {
+ int i, j, k;
+ 
+ for(; qs && qs->value; qs = qs->next){
+ j = 0;
+ for (; ;){
+ k = j;
+ for(i = 0; i < list_len; i++){
+ j += advance_quote_string(allowed_qstr[i], qs->value, j);
+ for(; ISspace(qs->value[j]); j++);
+ }
+ if(k == j)
+ 	 break;
+ }
+ if(qs->value[j] != '\0')
+ 	add_allowed_qstr((void *)(qs->value + j), 0);
+ }
+ }
+ 
+ /* type utf8: code 0; ucs4: code 1. */
+ char **
+ default_qstr(void *q, int type)
+ {
+ if(allowed_qstr == NULL)
+ add_allowed_qstr(q, type);
+ 
+ return allowed_qstr;
+ }
+ 
diff -rc alpine-2.22/pith/osdep/color.h alpine-2.22.fillpara/pith/osdep/color.h
*** alpine-2.22/pith/osdep/color.h	2020-01-19 01:32:18.622506893 -0700
--- alpine-2.22.fillpara/pith/osdep/color.h	2020-05-07 16:46:16.723304056 -0600
***************
*** 17,22 ****
--- 17,40 ----
 #ifndef PITH_OSDEP_COLOR_INCLUDED
 #define PITH_OSDEP_COLOR_INCLUDED
 
+ /*
+ * struct that will help us determine what the quote string of a line
+ * is. The "next" field indicates the presence of a possible continuation.
+ * The idea is that if a continuation fails, we free it and check for the
+ * remaining structure left
+ */
+ 
+ typedef enum {qsNormal, qsString, qsWord, qsChar, qsGdb, qsProg, qsText} QStrType;
+ 
+ typedef struct QSTRING {
+ 	char		*value;		/* possible quote string */
+ 	QStrType	 qstype;	/* type of quote string */
+ 	struct QSTRING	*next;		/* possible continuation */
+ } QSTRING_S;
+ 
+ #define UCH(c) ((unsigned char) (c))
+ #define NBSP UCH('\240')
+ #define ISspace(c) (UCH(c) == ' ' || UCH(c) == TAB || UCH(c) == NBSP)
 
 #define RGBLEN 11
 #define MAXCOLORLEN 11			/* longest string a color can be */
***************
*** 93,98 ****
 char	 *pico_get_last_bg_color(void);
 char	 *color_to_canonical_name(char *);
 int	 pico_count_in_color_table(void);
! 
 
 #endif /* PITH_OSDEP_COLOR_INCLUDED */
--- 111,124 ----
 char	 *pico_get_last_bg_color(void);
 char	 *color_to_canonical_name(char *);
 int	 pico_count_in_color_table(void);
! int 	 is_indent(char *, int);
! int	 get_indent_raw_line (char **, char *, char *, int, int, int);
! int 	 line_isblank(char **, char *, char *, char *, int);
! int	 strlenis(char *);
! int	 value_is_space(char *);
! int	 advance_quote_string(char *, char *, int);
! void	 free_allowed_qstr(void);
! void	 add_allowed_qstr(void *, int);
! void	 record_quote_string (QSTRING_S *);
 
 #endif /* PITH_OSDEP_COLOR_INCLUDED */
diff -rc alpine-2.22/pith/pine.hlp alpine-2.22.fillpara/pith/pine.hlp
*** alpine-2.22/pith/pine.hlp	2020-01-19 01:32:19.035498584 -0700
--- alpine-2.22.fillpara/pith/pine.hlp	2020-05-07 16:46:16.739304066 -0600
***************
*** 7820,7825 ****
--- 7820,7865 ----
 &quot;type the character ^&quot;.
 
 
+ This version of Alpine contains an enhanced algorithm for justification,
+ which allows you to justify text that contains more complicated quote
+ strings. This algorithm is based on pragmatics, rather than on a theory,
+ and seems to work well with most messages. Below you will find technical
+ information on how this algorithm works.
+ 
+ 
+ When justifying, Alpine goes through each line of the text and tries to
+ determine for each line what the quote string of that line is. The quote
+ string you provided is always recognized. Among other characters 
+ recognized is &quot;&gt;&quot;.
+ 
+ 
+ Some other constructions of quote strings are recognized only if they
+ appear enough in the text. For example &quot;Peter :&quot; is only
+ recognized if it appears in two consecutive lines.
+ 
+ 
+ Additionaly, Alpine recognizes indent-strings and justifies text in a
+ paragraph to the right of indent-string, padding with spaces if necessary.
+ An indent string is one which you use to delimit elements of a list. For
+ example, if you were to write a list of groceries, one may write:
+ 
+ <UL>
+ <LI> Fruit
+ <LI> Bread
+ <LI> Eggs
+ </UL>
+ 
+ 
+ In this case the character &quot;*&quot; is the indent-string. Aline
+ recognizes numbers (0, 1, 2.5, etc) also as indent-strings, and certain
+ combinations of spaces, periods, and parenthesis. In any case, numbers are
+ recognized ONLY if the line preceeding the given line is empty or
+ ends in one of the characters &quot;.&quot; or &quot;:&quot;.
+ In addition to the explanation of what constitutes a paragraph above, a
+ new paragraph is recognized when an indent-string is found in it (and
+ validated according to the above stated rules).
+ 
+ 
 &lt;End of help on this topic&gt;
 </BODY>
 </HTML>
diff -rc alpine-2.22/pith/reply.c alpine-2.22.fillpara/pith/reply.c
*** alpine-2.22/pith/reply.c	2020-01-19 01:32:19.475489776 -0700
--- alpine-2.22.fillpara/pith/reply.c	2020-05-07 16:46:16.763304080 -0600
***************
*** 2838,2843 ****
--- 2838,2846 ----
 		if(flow_res && ps_global->reply.use_flowed)
 		 wrapflags |= GFW_FLOW_RESULT;
 
+ 		filters[filtcnt].filter = gf_quote_test;
+ 		filters[filtcnt++].data = gf_line_test_opt(select_quote, NULL);
+ 
 		filters[filtcnt].filter = gf_wrap;
 		/* 
 		 * The 80 will cause longer lines than what is likely
***************
*** 2931,2937 ****
 	dq.do_color = 0;
 	dq.delete_all = 1;
 
! 	filters[filtcnt].filter = gf_line_test;
 	filters[filtcnt++].data = gf_line_test_opt(delete_quotes, &dq);
 }
 
--- 2934,2940 ----
 	dq.do_color = 0;
 	dq.delete_all = 1;
 
! 	filters[filtcnt].filter = gf_quote_test;
 	filters[filtcnt++].data = gf_line_test_opt(delete_quotes, &dq);
 }
 
diff -rc alpine-2.22/pith/state.c alpine-2.22.fillpara/pith/state.c
*** alpine-2.22/pith/state.c	2020-01-19 01:32:18.700505323 -0700
--- alpine-2.22.fillpara/pith/state.c	2020-05-07 16:46:16.767304083 -0600
***************
*** 229,234 ****
--- 229,236 ----
 if((*pps)->kw_colors)
 free_spec_colors(&(*pps)->kw_colors);
 
+ free_allowed_qstr();
+ 
 if((*pps)->atmts){
 	int i;
 
diff -rc alpine-2.22/pith/state.h alpine-2.22.fillpara/pith/state.h
*** alpine-2.22/pith/state.h	2020-01-19 01:32:18.561508121 -0700
--- alpine-2.22.fillpara/pith/state.h	2020-05-07 16:46:16.767304083 -0600
***************
*** 251,256 ****
--- 251,258 ----
 SPEC_COLOR_S *hdr_colors;		/* list of configured colors for view */
 SPEC_COLOR_S *index_token_colors;	/* list of configured colors for index */
 
+ char	*prefix;		/* prefix for fillpara */
+ char	**list_qstr;		/* list of known quote strings */
 short	 init_context;
 
 struct { 
diff -rc alpine-2.22/pith/text.c alpine-2.22.fillpara/pith/text.c
*** alpine-2.22/pith/text.c	2020-01-19 01:32:19.317492939 -0700
--- alpine-2.22.fillpara/pith/text.c	2020-05-07 16:46:16.767304083 -0600
***************
*** 92,98 ****
 char *err, *charset;
 int		filtcnt = 0, error_found = 0, column, wrapit;
 int is_in_sig = OUT_SIG_BLOCK;
! int is_flowed_msg = 0;
 int is_delsp_yes = 0;
 int filt_only_c0 = 0;
 char *parmval;
--- 92,98 ----
 char *err, *charset;
 int		filtcnt = 0, error_found = 0, column, wrapit;
 int is_in_sig = OUT_SIG_BLOCK;
! int is_flowed_msg = 0, add_me = 1, doraw = RAWSTRING;
 int is_delsp_yes = 0;
 int filt_only_c0 = 0;
 char *parmval;
***************
*** 180,186 ****
 	 && pico_usingcolor()
 	 && VAR_SIGNATURE_FORE_COLOR
 	 && VAR_SIGNATURE_BACK_COLOR){
! 	 filters[filtcnt].filter = gf_line_test;
 	 filters[filtcnt++].data = gf_line_test_opt(color_signature,
 						 &is_in_sig);
 	}
--- 180,186 ----
 	 && pico_usingcolor()
 	 && VAR_SIGNATURE_FORE_COLOR
 	 && VAR_SIGNATURE_BACK_COLOR){
! 	 filters[filtcnt].filter = gf_quote_test;
 	 filters[filtcnt++].data = gf_line_test_opt(color_signature,
 						 &is_in_sig);
 	}
***************
*** 198,206 ****
 	 && pico_usingcolor()
 	 && VAR_QUOTE1_FORE_COLOR
 	 && VAR_QUOTE1_BACK_COLOR){
! 	 filters[filtcnt].filter = gf_line_test;
! 	 filters[filtcnt++].data = gf_line_test_opt(color_a_quote,
! 						 &is_flowed_msg);
 	}
 }
 else if(!strucmp(att->body->subtype, "richtext")){
--- 198,206 ----
 	 && pico_usingcolor()
 	 && VAR_QUOTE1_FORE_COLOR
 	 && VAR_QUOTE1_BACK_COLOR){
! 	 add_me = 0;
! 	 filters[filtcnt].filter = gf_quote_test;
! 	 filters[filtcnt++].data = gf_line_test_opt(color_a_quote, &is_flowed_msg);
 	}
 }
 else if(!strucmp(att->body->subtype, "richtext")){
***************
*** 281,286 ****
--- 281,291 ----
 	}
 }
 
+ if (add_me){
+ filters[filtcnt].filter = gf_quote_test;
+ filters[filtcnt++].data = gf_line_test_opt(select_quote, &doraw);
+ }
+ 
 /*
 * If the message is not flowed, we do the quote suppression before
 * the wrapping, because the wrapping does not preserve the quote
***************
*** 305,311 ****
 	 dq.handlesp = handlesp;
 	 dq.do_color = (!(flags & FM_NOCOLOR) && pico_usingcolor());
 
! 	 filters[filtcnt].filter = gf_line_test;
 	 filters[filtcnt++].data = gf_line_test_opt(delete_quotes, &dq);
 	}
 	if(ps_global->VAR_QUOTE_REPLACE_STRING
--- 310,316 ----
 	 dq.handlesp = handlesp;
 	 dq.do_color = (!(flags & FM_NOCOLOR) && pico_usingcolor());
 
! 	 filters[filtcnt].filter = gf_quote_test;
 	 filters[filtcnt++].data = gf_line_test_opt(delete_quotes, &dq);
 	}
 	if(ps_global->VAR_QUOTE_REPLACE_STRING
***************
*** 364,370 ****
 	dq.handlesp = handlesp;
 	dq.do_color = (!(flags & FM_NOCOLOR) && pico_usingcolor());
 
! 	filters[filtcnt].filter = gf_line_test;
 	filters[filtcnt++].data = gf_line_test_opt(delete_quotes, &dq);
 }
 
--- 369,375 ----
 	dq.handlesp = handlesp;
 	dq.do_color = (!(flags & FM_NOCOLOR) && pico_usingcolor());
 
! 	filters[filtcnt].filter = gf_quote_test;
 	filters[filtcnt++].data = gf_line_test_opt(delete_quotes, &dq);
 }
 
***************
*** 569,575 ****
 {
 DELQ_S *dq;
 char *lp;
! int i, lines, not_a_quote = 0;
 size_t len;
 
 dq = (DELQ_S *) local;
--- 574,580 ----
 {
 DELQ_S *dq;
 char *lp;
! int i, lines, not_a_quote = 0, code;
 size_t len;
 
 dq = (DELQ_S *) local;
***************
*** 589,594 ****
--- 594,601 ----
 	for(i = dq->indent_length; i > 0 && !not_a_quote && *lp; i--)
 	 if(*lp++ != SPACE)
 	 not_a_quote++;
+ 	while(isspace((unsigned char) *lp))
+ 	 lp++;
 	
 	/* skip over leading tags */
 	while(!not_a_quote
***************
*** 628,640 ****
 	 }
 	}
 
! 	/* skip over whitespace */
! 	if(!dq->is_flowed)
! 	 while(isspace((unsigned char) *lp))
! 	 lp++;
! 
! 	/* check first character to see if it is a quote */
! 	if(!not_a_quote && *lp != '>')
 	 not_a_quote++;
 
 	if(not_a_quote){
--- 635,646 ----
 	 }
 	}
 
! 	len = lp - line;
! 	if(strlen(tmp_20k_buf) > len)
! 	 strcpy(tmp_20k_buf, tmp_20k_buf+len);
! code = (dq->is_flowed ? IS_FLOWED : NO_FLOWED) | DELETEQUO;
! 	select_quote(linenum, lp, ins, &code);
! 	if (!not_a_quote && !tmp_20k_buf[0])
 	 not_a_quote++;
 
 	if(not_a_quote){

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File chappa-fillpara.patch of Package alpine (Revision 7f88e99e027abe002294405a5a8f6020)

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