Rename `MRB_{ENABLE,DISABLE}_` to `MRB_{USE,NO}_`; close #5163

|        Previous Name         |        New Name         |
|------------------------------|-------------------------|
| MRB_ENABLE_ALL_SYMBOLS       | MRB_USE_ALL_SYMBOLS     |
| MRB_ENABLE_SYMBOLL_ALL       | MRB_USE_ALL_SYMBOLS     |
| MRB_ENABLE_CXX_ABI           | MRB_USE_CXX_ABI         |
| MRB_ENABLE_CXX_EXCEPTION     | MRB_USE_CXX_EXCEPTION   |
| MRB_ENABLE_DEBUG_HOOK        | MRB_USE_DEBUG_HOOK      |
| MRB_DISABLE_DIRECT_THREADING | MRB_NO_DIRECT_THREADING |
| MRB_DISABLE_STDIO            | MRB_NO_STDIO            |
| ENABLE_LINENOISE             | MRB_USE_LINENOISE       |
| ENABLE_READLINE              | MRB_USE_READLINE        |
| DISABLE_MIRB_UNDERSCORE      | MRB_NO_MIRB_UNDERSCORE  |
| DISABLE_GEMS                 | MRB_NO_GEMS             |

* `MRB_ENABLE_SYMBOLL_ALL` seems to be a typo, so it is fixed.
* `MRB_` prefix is added to those without.
* The previous names can also be used for compatibility.

10 files changed, 26 insertions, 26 deletions

diff --git a/src/backtrace.c b/src/backtrace.c
index bcc188796..1006f2f86 100644
--- a/src/backtrace.c
+++ b/src/backtrace.c
@@ -74,7 +74,7 @@ each_backtrace(mrb_state *mrb, ptrdiff_t ciidx, const mrb_code *pc0, each_backtr
   }
 }
 
-#ifndef MRB_DISABLE_STDIO
+#ifndef MRB_NO_STDIO
 
 static void
 print_backtrace(mrb_state *mrb, struct RObject *exc, mrb_value backtrace)
diff --git a/src/codedump.c b/src/codedump.c
index 524f0b9e1..fd376c20b 100644
--- a/src/codedump.c
+++ b/src/codedump.c
@@ -6,7 +6,7 @@
 #include <mruby/proc.h>
 #include <mruby/dump.h>
 
-#ifndef MRB_DISABLE_STDIO
+#ifndef MRB_NO_STDIO
 static void
 print_r(mrb_state *mrb, const mrb_irep *irep, size_t n)
 {
@@ -556,7 +556,7 @@ codedump_recur(mrb_state *mrb, const mrb_irep *irep)
 void
 mrb_codedump_all(mrb_state *mrb, struct RProc *proc)
 {
-#ifndef MRB_DISABLE_STDIO
+#ifndef MRB_NO_STDIO
   codedump_recur(mrb, proc->body.irep);
 #endif
 }
diff --git a/src/dump.c b/src/dump.c
index 2bc1b0a53..89b0053da 100644
--- a/src/dump.c
+++ b/src/dump.c
@@ -874,7 +874,7 @@ mrb_dump_irep(mrb_state *mrb, const mrb_irep *irep, uint8_t flags, uint8_t **bin
   return dump_irep(mrb, irep, flags, bin, bin_size);
 }
 
-#ifndef MRB_DISABLE_STDIO
+#ifndef MRB_NO_STDIO
 
 int
 mrb_dump_irep_binary(mrb_state *mrb, const mrb_irep *irep, uint8_t flags, FILE* fp)
@@ -1112,4 +1112,4 @@ mrb_dump_irep_cstruct(mrb_state *mrb, const mrb_irep *irep, uint8_t flags, FILE
   return MRB_DUMP_OK;
 }
 
-#endif /* MRB_DISABLE_STDIO */
+#endif /* MRB_NO_STDIO */
diff --git a/src/error.c b/src/error.c
index b19f0ea43..4f7ca8641 100644
--- a/src/error.c
+++ b/src/error.c
@@ -420,7 +420,7 @@ mrb_name_error(mrb_state *mrb, mrb_sym id, const char *fmt, ...)
 MRB_API void
 mrb_warn(mrb_state *mrb, const char *fmt, ...)
 {
-#ifndef MRB_DISABLE_STDIO
+#ifndef MRB_NO_STDIO
   va_list ap;
   mrb_value str;
 
@@ -436,7 +436,7 @@ mrb_warn(mrb_state *mrb, const char *fmt, ...)
 MRB_API mrb_noreturn void
 mrb_bug(mrb_state *mrb, const char *fmt, ...)
 {
-#ifndef MRB_DISABLE_STDIO
+#ifndef MRB_NO_STDIO
   va_list ap;
   mrb_value str;
 
diff --git a/src/fmt_fp.c b/src/fmt_fp.c
index 2c1e13c36..765690fce 100644
--- a/src/fmt_fp.c
+++ b/src/fmt_fp.c
@@ -1,5 +1,5 @@
 #ifndef MRB_NO_FLOAT
-#if defined(MRB_DISABLE_STDIO) || defined(_WIN32) || defined(_WIN64)
+#if defined(MRB_NO_STDIO) || defined(_WIN32) || defined(_WIN64)
 /*
 
 Most code in this file originates from musl (src/stdio/vfprintf.c)
@@ -442,7 +442,7 @@ mrb_float_to_cstr(mrb_state *mrb, char *buf, size_t len, const char *fmt, mrb_fl
   *cstr.buf = '\0';
   return (int)(cstr.buf - buf);
 }
-#else   /* MRB_DISABLE_STDIO || _WIN32 || _WIN64 */
+#else   /* MRB_NO_STDIO || _WIN32 || _WIN64 */
 #include <mruby.h>
 #include <stdio.h>
 
@@ -460,5 +460,5 @@ mrb_float_to_cstr(mrb_state *mrb, char *buf, size_t len, const char *fmt, mrb_fl
 {
   return snprintf(buf, len, fmt, fval);
 }
-#endif  /* MRB_DISABLE_STDIO || _WIN32 || _WIN64 */
+#endif  /* MRB_NO_STDIO || _WIN32 || _WIN64 */
 #endif
diff --git a/src/load.c b/src/load.c
index 262600685..20b85c71c 100644
--- a/src/load.c
+++ b/src/load.c
@@ -685,7 +685,7 @@ mrb_load_proc(mrb_state *mrb, const struct RProc *proc)
   return mrb_vm_run(mrb, proc, mrb_top_self(mrb), 0);
 }
 
-#ifndef MRB_DISABLE_STDIO
+#ifndef MRB_NO_STDIO
 
 mrb_irep*
 mrb_read_irep_file(mrb_state *mrb, FILE* fp)
@@ -732,4 +732,4 @@ mrb_load_irep_file(mrb_state *mrb, FILE* fp)
 {
   return mrb_load_irep_file_cxt(mrb, fp, NULL);
 }
-#endif /* MRB_DISABLE_STDIO */
+#endif /* MRB_NO_STDIO */
diff --git a/src/print.c b/src/print.c
index 6bf7da6a5..68b2aad91 100644
--- a/src/print.c
+++ b/src/print.c
@@ -10,7 +10,7 @@
 #include <mruby/error.h>
 #include <string.h>
 
-#ifndef MRB_DISABLE_STDIO
+#ifndef MRB_NO_STDIO
 static void
 printcstr(const char *str, size_t len, FILE *stream)
 {
diff --git a/src/state.c b/src/state.c
index aef9605bc..5da2675ac 100644
--- a/src/state.c
+++ b/src/state.c
@@ -77,7 +77,7 @@ mrb_open(void)
   return mrb;
 }
 
-#ifndef DISABLE_GEMS
+#ifndef MRB_NO_GEMS
 static void
 init_mrbgems(mrb_state *mrb, void *opaque)
 {
@@ -94,7 +94,7 @@ mrb_open_allocf(mrb_allocf f, void *ud)
     return NULL;
   }
 
-#ifndef DISABLE_GEMS
+#ifndef MRB_NO_GEMS
   if (mrb_core_init_protect(mrb, init_mrbgems, NULL)) {
     mrb_close(mrb);
     return NULL;
diff --git a/src/symbol.c b/src/symbol.c
index b4927c9d4..daff23c36 100644
--- a/src/symbol.c
+++ b/src/symbol.c
@@ -69,7 +69,7 @@ typedef struct symbol_name {
   const char *name;
 } symbol_name;
 
-#ifdef MRB_ENABLE_ALL_SYMBOLS
+#ifdef MRB_USE_ALL_SYMBOLS
 #define SYMBOL_SHIFT         0
 # define SYMBOL_INLINE_P(sym) FALSE
 # define sym_inline_pack(name, len) 0
@@ -88,7 +88,7 @@ sym_validate_len(mrb_state *mrb, size_t len)
   }
 }
 
-#ifndef MRB_ENABLE_ALL_SYMBOLS
+#ifndef MRB_USE_ALL_SYMBOLS
 static const char pack_table[] = "_abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
 
 static mrb_sym
diff --git a/src/vm.c b/src/vm.c
index 721a6c9b7..a0d4c967b 100644
--- a/src/vm.c
+++ b/src/vm.c
@@ -25,7 +25,7 @@
 #include <mruby/throw.h>
 #include <mruby/dump.h>
 
-#ifdef MRB_DISABLE_STDIO
+#ifdef MRB_NO_STDIO
 #if defined(__cplusplus)
 extern "C" {
 #endif
@@ -935,7 +935,7 @@ prepare_tagged_break(mrb_state *mrb, uint32_t tag, const struct RProc *proc, mrb
 
 #define ERR_PC_SET(mrb) mrb->c->ci->err = pc0;
 #define ERR_PC_CLR(mrb) mrb->c->ci->err = 0;
-#ifdef MRB_ENABLE_DEBUG_HOOK
+#ifdef MRB_USE_DEBUG_HOOK
 #define CODE_FETCH_HOOK(mrb, irep, pc, regs) if ((mrb)->code_fetch_hook) (mrb)->code_fetch_hook((mrb), (irep), (pc), (regs));
 #else
 #define CODE_FETCH_HOOK(mrb, irep, pc, regs)
@@ -947,11 +947,11 @@ prepare_tagged_break(mrb_state *mrb, uint32_t tag, const struct RProc *proc, mrb
 #define BYTECODE_DECODER(x) (x)
 #endif
 
-#ifndef MRB_DISABLE_DIRECT_THREADING
+#ifndef MRB_NO_DIRECT_THREADING
 #if defined __GNUC__ || defined __clang__ || defined __INTEL_COMPILER
 #define DIRECT_THREADED
 #endif
-#endif /* ifndef MRB_DISABLE_DIRECT_THREADING */
+#endif /* ifndef MRB_NO_DIRECT_THREADING */
 
 #ifndef DIRECT_THREADED
 
@@ -2797,10 +2797,10 @@ RETRY_TRY_BLOCK:
 
     CASE(OP_DEBUG, Z) {
       FETCH_BBB();
-#ifdef MRB_ENABLE_DEBUG_HOOK
+#ifdef MRB_USE_DEBUG_HOOK
       mrb->debug_op_hook(mrb, irep, pc, regs);
 #else
-#ifndef MRB_DISABLE_STDIO
+#ifndef MRB_NO_STDIO
       printf("OP_DEBUG %d %d %d\n", a, b, c);
 #else
       abort();
@@ -2887,12 +2887,12 @@ mrb_top_run(mrb_state *mrb, const struct RProc *proc, mrb_value self, mrb_int st
   return v;
 }
 
-#if defined(MRB_ENABLE_CXX_EXCEPTION) && defined(__cplusplus)
-# if !defined(MRB_ENABLE_CXX_ABI)
+#if defined(MRB_USE_CXX_EXCEPTION) && defined(__cplusplus)
+# if !defined(MRB_USE_CXX_ABI)
 } /* end of extern "C" */
 # endif
 mrb_int mrb_jmpbuf::jmpbuf_id = 0;
-# if !defined(MRB_ENABLE_CXX_ABI)
+# if !defined(MRB_USE_CXX_ABI)
 extern "C" {
 # endif
 #endif