fix the url madness once and for all

Makefile

@@ -4,7 +4,7 @@ GTK = gtk+-3.0
 VTE = vte-2.90
 TERMINFO = ${PREFIX}/share/terminfo
 
-CFLAGS := -std=c99 -O3 \
+CXXFLAGS := -std=c++11 -O3 \
 	    -Wall -Wextra -pedantic \
 	    -Winit-self \
 	    -Wshadow \
@@ -14,22 +14,20 @@ CFLAGS := -std=c99 -O3 \
 	    -Wcast-align \
 	    -Wcast-qual \
 	    -Wconversion \
-	  -Wc++-compat \
-	  -Wbad-function-cast \
 	    -Wunused-macros \
 	    -Wwrite-strings \
 	    -DTERMITE_VERSION=\"${VERSION}\" \
 	    ${shell pkg-config --cflags ${GTK} ${VTE}} \
-	  ${CFLAGS}
+	    ${CXXFLAGS}
 
-ifeq (${CC}, clang)
-	CFLAGS += -Wno-missing-field-initializers
+ifeq (${CXX}, g++)
+	CXXFLAGS += -Wno-missing-field-initializers
 endif
 
 LDFLAGS := -s -Wl,--as-needed ${shell pkg-config --libs ${GTK} ${VTE}} ${LDFLAGS}
 
 termite: termite.c
-	${CC} ${CFLAGS} -o $@ $< ${LDFLAGS}
+	${CXX} ${CXXFLAGS} -o $@ $< ${LDFLAGS}
 
 install: termite
 	mkdir -p ${DESTDIR}${TERMINFO}

termite.c

@@ -14,19 +14,8 @@
 
 #define CSI "\x1b["
 
-#define USERCHARS       "-[:alnum:]"
-#define USERCHARS_CLASS "[" USERCHARS "]"
-#define PASSCHARS_CLASS "[-[:alnum:]\\Q,?;.:/!%$^*&~\"#'\\E]"
-#define HOSTCHARS_CLASS "[-[:alnum:]]"
-#define HOST            HOSTCHARS_CLASS "+(\\." HOSTCHARS_CLASS "+)*"
-#define PORT            "(?:\\:[[:digit:]]{1,5})?"
-#define PATHCHARS_CLASS "[-[:alnum:]\\Q_$.+!*,;@&=?/~#%\\E]"
-#define PATHTERM_CLASS  "[^\\Q]'.}>) \t\r\n,\"\\E]"
-#define SCHEME          "(?:news:|telnet:|nntp:|file:\\/|https?:|ftps?:|sftp:|webcal:)"
-#define USERPASS        USERCHARS_CLASS "+(?:" PASSCHARS_CLASS "+)?"
-#define URLPATH         "(?:(/" PATHCHARS_CLASS "+(?:[(]" PATHCHARS_CLASS "*[)])*" PATHCHARS_CLASS"*)*"PATHTERM_CLASS ")?"
-
-static const char * const url_regex = SCHEME "//(?:" USERPASS "\\@)?" HOST PORT URLPATH;
+// http://blog.dieweltistgarnichtso.net/constructing-a-regular-expression-that-matches-uris
+static const char * const url_regex = R"XXX(((?<=\()[A-Za-z][A-Za-z0-9\+\.\-]*:([A-Za-z0-9\.\-_~:/\?#\[\]@!\$&'\(\)\*\+,;=]|%[A-Fa-f0-9]{2})+(?=\)))|([A-Za-z][A-Za-z0-9\+\.\-]*:([A-Za-z0-9\.\-_~:/\?#\[\]@!\$&'\(\)\*\+,;=]|%[A-Fa-f0-9]{2})+))XXX";
 
 typedef enum overlay_mode {
     OVERLAY_HIDDEN = 0,