From f22071dcfa3cd01d4fee25ea6fe3441780a11387 Mon Sep 17 00:00:00 2001
From: mortezadadgar <mortezadadgar97@gmail.com>
Date: Thu, 11 May 2023 16:24:49 +0330
Subject: [PATCH]: Added restricted version of support for RTL
 languages

Only applied fribi where is needed the title
also improved the code quality based on suckless guidelines.
---
 config.mk |  8 ++++++--
 dwm.c     | 21 ++++++++++++++++++++-
 2 files changed, 26 insertions(+), 3 deletions(-)

diff --git a/config.mk b/config.mk
index 681e059..1dd9bb5 100644
--- a/config.mk
+++ b/config.mk
@@ -10,6 +10,8 @@ MANPREFIX = ${PREFIX}/share/man
 X11INC = /usr/X11R6/include
 X11LIB = /usr/X11R6/lib
 
+BDINC = /usr/include/fribidi
+
 # Xinerama, comment if you don't want it
 XINERAMALIBS  = -lXinerama
 XINERAMAFLAGS = -DXINERAMA
@@ -21,9 +23,11 @@ FREETYPEINC = /usr/include/freetype2
 #FREETYPEINC = ${X11INC}/freetype2
 #MANPREFIX = ${PREFIX}/man
 
+BDLIBS = -lfribidi
+
 # includes and libs
-INCS = -I${X11INC} -I${FREETYPEINC}
-LIBS = -L${X11LIB} -lX11 ${XINERAMALIBS} ${FREETYPELIBS}
+INCS = -I${X11INC} -I${FREETYPEINC} -I$(BDINC)
+LIBS = -L${X11LIB} -lX11 ${XINERAMALIBS} ${FREETYPELIBS} $(BDLIBS)
 
 # flags
 CPPFLAGS = -D_DEFAULT_SOURCE -D_BSD_SOURCE -D_XOPEN_SOURCE=700L -DVERSION=\"${VERSION}\" ${XINERAMAFLAGS}
diff --git a/dwm.c b/dwm.c
index 2f4cad9..5df8bdb 100644
--- a/dwm.c
+++ b/dwm.c
@@ -21,6 +21,7 @@
  * To understand everything else, start reading main().
  */
 #include <errno.h>
+#include <fribidi.h>
 #include <locale.h>
 #include <signal.h>
 #include <stdarg.h>
@@ -168,6 +169,7 @@ typedef struct {
 } Rule;
 
 /* function declarations */
+static void apply_fribidi(char *str);
 static void applyrules(Client *c);
 static int applysizehints(Client *c, int *x, int *y, int *w, int *h, int interact);
 static void arrange(Monitor *m);
@@ -267,6 +269,7 @@ static void zoom(const Arg *arg);
 /* variables */
 static const char broken[] = "broken";
 static char stext[256];
+static char fribidi_text[256];
 static int screen;
 static int sw, sh;           /* X display screen geometry width, height */
 static int bh;               /* bar height */
@@ -312,6 +315,21 @@ struct Pertag {
 struct NumTags { char limitexceeded[LENGTH(tags) > 31 ? -1 : 1]; };
 
 /* function implementations */
+void
+apply_fribidi(char *str)
+{
+	FriBidiStrIndex len = strlen(str);
+	FriBidiChar logical[256];
+	FriBidiChar visual[256];
+	FriBidiParType base = FRIBIDI_PAR_ON;
+	FriBidiCharSet charset;
+
+	charset = fribidi_parse_charset("UTF-8");
+	len = fribidi_charset_to_unicode(charset, str, len, logical);
+	fribidi_log2vis(logical, len, &base, visual, NULL, NULL, NULL);
+	fribidi_unicode_to_charset(charset, visual, len, fribidi_text);
+}
+
 void
 applyrules(Client *c)
 {
@@ -808,7 +826,8 @@ drawbar(Monitor *m)
 	if ((w = m->ww - tw - x) > bh) {
 		if (m->sel) {
 			drw_setscheme(drw, scheme[m == selmon ? SchemeSel : SchemeNorm]);
-			drw_text(drw, x, 0, w, bh, lrpad / 2, m->sel->name, 0);
+			apply_fribidi(m->sel->name);
+			drw_text(drw, x, 0, w, bh, lrpad / 2, fribidi_text, 0);
 			if (m->sel->isfloating)
 				drw_rect(drw, x + boxs, boxs, boxw, boxw, m->sel->isfixed, 0);
 		} else {
-- 
2.39.3