core: added #!defenvs preprocessor directive

- similar to #!defenv, but the value is enclosed in double quotes to
make it covenient to be used as a string token

src/core/cfg.lex

@@ -129,7 +129,7 @@
 
 /* start conditions */
 %x STRING1 STRING2 STR_BETWEEN COMMENT COMMENT_LN ATTR SELECT AVP_PVAR PVAR_P
-%x PVARID INCLF IMPTF EVRTNAME CFGPRINTMODE CFGPRINTLOADMOD DEFENV_ID
+%x PVARID INCLF IMPTF EVRTNAME CFGPRINTMODE CFGPRINTLOADMOD DEFENV_ID DEFENVS_ID
 %x LINECOMMENT DEFINE_ID DEFINE_EOL DEFINE_DATA IFDEF_ID IFDEF_EOL IFDEF_SKIP
 
 /* config script types : #!SER  or #!KAMAILIO or #!MAX_COMPAT */
@@ -565,6 +565,7 @@ ENDIF        endif
 TRYDEF       "trydefine"|"trydef"
 REDEF        "redefine"|"redef"
 DEFENV       defenv
+DEFENVS      defenvs
 
 /* else is already defined */
 
@@ -1449,7 +1450,28 @@ IMPORTFILE      "import_file"
 <DEFENV_ID>[^ \t\r\n]+   { /* get the define id of environment variable */
 				count();
 				ksr_cfg_print_part(yytext);
-				if(pp_define_env(yytext, yyleng) < 0) {
+				if(pp_define_env(yytext, yyleng, KSR_PPDEF_NORMAL) < 0) {
+					LM_CRIT("error at %s line %d\n", (finame)?finame:"cfg", line);
+					ksr_exit(-1);
+				}
+				state = INITIAL;
+				ksr_cfg_print_initial_state();
+}
+
+<INITIAL,CFGPRINTMODE>{PREP_START}{DEFENVS}  { count();
+			ksr_cfg_print_part(yytext);
+			state = DEFINE_S;
+			BEGIN(DEFENVS_ID);
+}
+
+<DEFENVS_ID>[ \t]*      { /* eat the whitespace */
+				count();
+				ksr_cfg_print_part(yytext);
+			}
+<DEFENVS_ID>[^ \t\r\n]+   { /* get the define id of environment variable */
+				count();
+				ksr_cfg_print_part(yytext);
+				if(pp_define_env(yytext, yyleng, KSR_PPDEF_QUOTED) < 0) {
 					LM_CRIT("error at %s line %d\n", (finame)?finame:"cfg", line);
 					ksr_exit(-1);
 				}
@@ -2060,7 +2082,7 @@ int pp_define_set(int len, char *text, int mode)
 	return 0;
 }
 
-int pp_define_env(const char *text, int len)
+int pp_define_env(const char *text, int len, int qmode)
 {
 	char *r;
 	str defname;
@@ -2093,7 +2115,7 @@ int pp_define_env(const char *text, int len)
 		LM_ERR("cannot set define name [%s]\n", (char*)text);
 		return -1;
 	}
-	if(pp_define_set(defvalue.len, defvalue.s, KSR_PPDEF_NORMAL)<0) {
+	if(pp_define_set(defvalue.len, defvalue.s, qmode)<0) {
 		LM_ERR("cannot set define value [%s]\n", (char*)text);
 		return -1;
 	}

src/core/ppcfg.h

@@ -45,7 +45,7 @@ int  pp_define(int len, const char *text);
 int  pp_define_set(int len, char *text, int mode);
 int  pp_define_set_type(int type);
 str *pp_define_get(int len, const char * text);
-int  pp_define_env(const char * text, int len);
+int  pp_define_env(const char * text, int len, int qmode);
 
 void pp_ifdef_level_update(int val);
 int pp_ifdef_level_check(void);