-#ifndef CVAR_H
-#define CVAR_H
+#pragma once
+#include "nil.qh"
+#include "progname.qh"
#include "static.qh"
-void RegisterCvars(void(string name, string desc, bool archive, string file) f) { }
+ERASEABLE
+void RegisterCvars(void(string name, string def, string desc, bool archive, string file) f) {}
-void RegisterCvars_Set(string name, string desc, bool archive, string file)
+ERASEABLE
+bool cvar_value_issafe(string s)
{
- localcmd(sprintf("\n%1$s %2$s \"$%2$s\" \"%3$s\"\n", (archive ? "seta" : "set"), name, desc));
+ if (strstrofs(s, "\"", 0) >= 0) return false;
+ if (strstrofs(s, "\\", 0) >= 0) return false;
+ if (strstrofs(s, ";", 0) >= 0) return false;
+ if (strstrofs(s, "$", 0) >= 0) return false;
+ if (strstrofs(s, "\r", 0) >= 0) return false;
+ if (strstrofs(s, "\n", 0) >= 0) return false;
+ return true;
}
-STATIC_INIT_LATE(Cvars) { RegisterCvars(RegisterCvars_Set); }
+/** escape the string to make it safe for consoles */
+ERASEABLE
+string MakeConsoleSafe(string input)
+{
+ input = strreplace("\n", "", input);
+ input = strreplace("\\", "\\\\", input);
+ input = strreplace("$", "$$", input);
+ input = strreplace("\"", "\\\"", input);
+ return input;
+}
+
+/**
+ * Evaluate an expression of the form: [+ | -]? [var[op]val | [op]var | val | var] ...
+ * +: all must match. this is the default
+ * -: one must NOT match
+ *
+ * var>x
+ * var<x
+ * var>=x
+ * var<=x
+ * var==x
+ * var!=x
+ * var===x
+ * var!==x
+ */
+ERASEABLE
+bool expr_evaluate(string s)
+{
+ bool ret = false;
+ if (str2chr(s, 0) == '+') {
+ s = substring(s, 1, -1);
+ } else if (str2chr(s, 0) == '-') {
+ ret = true;
+ s = substring(s, 1, -1);
+ }
+ bool expr_fail = false;
+ for (int i = 0, n = tokenize_console(s); i < n; ++i) {
+ int o;
+ string k, v;
+ s = argv(i);
+ #define X(expr) \
+ if (expr) \
+ continue; \
+ expr_fail = true; \
+ break;
+
+ #define BINOP(op, len, expr) \
+ if ((o = strstrofs(s, op, 0)) >= 0) { \
+ k = substring(s, 0, o); \
+ v = substring(s, o + len, -1); \
+ X(expr); \
+ }
+ BINOP(">=", 2, cvar(k) >= stof(v));
+ BINOP("<=", 2, cvar(k) <= stof(v));
+ BINOP(">", 1, cvar(k) > stof(v));
+ BINOP("<", 1, cvar(k) < stof(v));
+ BINOP("==", 2, cvar(k) == stof(v));
+ BINOP("!=", 2, cvar(k) != stof(v));
+ BINOP("===", 3, cvar_string(k) == v);
+ BINOP("!==", 3, cvar_string(k) != v);
+ {
+ k = s;
+ bool b = true;
+ if (str2chr(k, 0) == '!') {
+ k = substring(s, 1, -1);
+ b = false;
+ }
+ float f = stof(k);
+ bool isnum = ftos(f) == k;
+ X(boolean(isnum ? f : cvar(k)) == b);
+ }
+ #undef BINOP
+ #undef X
+ }
+ if (!expr_fail) {
+ ret = !ret;
+ }
+ // now ret is true if we want to keep the item, and false if we want to get rid of it
+ return ret;
+}
+ERASEABLE
+void RegisterCvars_Set(string name, string def, string desc, bool archive, string file)
+{
+ localcmd(sprintf("\nset %1$s \"$%1$s\" \"%2$s\"\n", name, MakeConsoleSafe(desc)));
+ if (archive)
+ localcmd(sprintf("\nseta %1$s \"$%1$s\"\n", name));
+}
+
+int RegisterCvars_Save_fd;
+ERASEABLE
+void RegisterCvars_Save(string name, string def, string desc, bool archive, string file)
+{
+ if (!archive) return;
+ fputs(RegisterCvars_Save_fd, sprintf("seta %s \"%s\"\n", name, def));
+}
+
+STATIC_INIT_LATE(Cvars)
+{
+ RegisterCvars(RegisterCvars_Set);
+ RegisterCvars_Save_fd = fopen(sprintf("default%s.cfg", PROGNAME), FILE_WRITE);
+ if (RegisterCvars_Save_fd >= 0)
+ {
+ RegisterCvars(RegisterCvars_Save);
+ fclose(RegisterCvars_Save_fd);
+ }
+}
+
+const noref bool default_bool = false;
+const noref int default_int = 0;
+const noref float default_float = 0;
+const noref string default_string = "";
+const noref vector default_vector = '0 0 0';
+
+#define repr_cvar_bool(x) ((x) ? "1" : "0")
+#define repr_cvar_int(x) (ftos(x))
+#define repr_cvar_float(x) (ftos(x))
+#define repr_cvar_string(x) (x)
+#define repr_cvar_vector(x) (sprintf("%v", x))
+
+//pseudo prototypes:
+// void AUTOCVAR(<cvar_name>, <qc_var_type>, default_cvar_value, string desc)
+// void AUTOCVAR_SAVE(<cvar_name>, <qc_var_type>, default_cvar_value, string desc)
+// where default_cvar_value has type <qc_var_type>
+// e.g.: AUTOCVAR(mycvar, float, 2.5, "cvar description")
+
+#define __AUTOCVAR(file, archive, var, type, desc, default) \
+ ACCUMULATE void RegisterCvars(void(string, string, string, bool, string) f) \
+ { \
+ f( #var, repr_cvar_##type(default), desc, archive, file); \
+ } \
+ type autocvar_##var = default
#define AUTOCVAR_5(file, archive, var, type, desc) \
- [[accumulate]] void RegisterCvars(void(string, string, bool, string) f) { f(#var, desc, archive, file); } \
- type autocvar_##var
+ __AUTOCVAR(file, archive, var, type, desc, default_##type)
#define AUTOCVAR_6(file, archive, var, type, default, desc) \
- AUTOCVAR_5(file, archive, var, type, desc) = default
-#define _AUTOCVAR(...) EVAL(OVERLOAD(AUTOCVAR, __FILE__, __VA_ARGS__))
+ __AUTOCVAR(file, archive, var, type, desc, default)
+#define _AUTOCVAR(...) EVAL__AUTOCVAR(OVERLOAD(AUTOCVAR, __FILE__, __VA_ARGS__))
+#define EVAL__AUTOCVAR(...) __VA_ARGS__
#define AUTOCVAR_SAVE(...) _AUTOCVAR(true, __VA_ARGS__)
#define AUTOCVAR(...) _AUTOCVAR(false, __VA_ARGS__)
-
-#endif