streq: Rename macro.

* lib/streq.h (STREQ_OPT): Renamed from STREQ.
* NEWS: Mention the change.
* lib/mbrtowc.c (mbrtowc): Update.
* lib/uniwidth/cjk.h (is_cjk_encoding): Update.
* lib/wcwidth.c (wcwidth): Update.
Suggested by Akim Demaille and Jim Meyering.

4 files changed, 27 insertions, 21 deletions

diff --git a/lib/mbrtowc.c b/lib/mbrtowc.c
index a60e56d6ae..e3f354beed 100644
--- a/lib/mbrtowc.c
+++ b/lib/mbrtowc.c
@@ -128,7 +128,7 @@ mbrtowc (wchar_t *pwc, const char *s, size_t n, mbstate_t *ps)
       {
         const char *encoding = locale_charset ();
 
-        if (STREQ (encoding, "UTF-8", 'U', 'T', 'F', '-', '8', 0, 0, 0, 0))
+        if (STREQ_OPT (encoding, "UTF-8", 'U', 'T', 'F', '-', '8', 0, 0, 0, 0))
           {
             /* Cf. unistr/u8-mblen.c.  */
             unsigned char c = (unsigned char) p[0];
@@ -185,7 +185,8 @@ mbrtowc (wchar_t *pwc, const char *s, size_t n, mbstate_t *ps)
         /* As a reference for this code, you can use the GNU libiconv
            implementation.  Look for uses of the RET_TOOFEW macro.  */
 
-        if (STREQ (encoding, "EUC-JP", 'E', 'U', 'C', '-', 'J', 'P', 0, 0, 0))
+        if (STREQ_OPT (encoding,
+                       "EUC-JP", 'E', 'U', 'C', '-', 'J', 'P', 0, 0, 0))
           {
             if (m == 1)
               {
@@ -208,9 +209,12 @@ mbrtowc (wchar_t *pwc, const char *s, size_t n, mbstate_t *ps)
               }
             goto invalid;
           }
-        if (STREQ (encoding, "EUC-KR", 'E', 'U', 'C', '-', 'K', 'R', 0, 0, 0)
-            || STREQ (encoding, "GB2312", 'G', 'B', '2', '3', '1', '2', 0, 0, 0)
-            || STREQ (encoding, "BIG5", 'B', 'I', 'G', '5', 0, 0, 0, 0, 0))
+        if (STREQ_OPT (encoding,
+                       "EUC-KR", 'E', 'U', 'C', '-', 'K', 'R', 0, 0, 0)
+            || STREQ_OPT (encoding,
+                          "GB2312", 'G', 'B', '2', '3', '1', '2', 0, 0, 0)
+            || STREQ_OPT (encoding,
+                          "BIG5", 'B', 'I', 'G', '5', 0, 0, 0, 0, 0))
           {
             if (m == 1)
               {
@@ -221,7 +225,8 @@ mbrtowc (wchar_t *pwc, const char *s, size_t n, mbstate_t *ps)
               }
             goto invalid;
           }
-        if (STREQ (encoding, "EUC-TW", 'E', 'U', 'C', '-', 'T', 'W', 0, 0, 0))
+        if (STREQ_OPT (encoding,
+                       "EUC-TW", 'E', 'U', 'C', '-', 'T', 'W', 0, 0, 0))
           {
             if (m == 1)
               {
@@ -239,7 +244,8 @@ mbrtowc (wchar_t *pwc, const char *s, size_t n, mbstate_t *ps)
               }
             goto invalid;
           }
-        if (STREQ (encoding, "GB18030", 'G', 'B', '1', '8', '0', '3', '0', 0, 0))
+        if (STREQ_OPT (encoding,
+                       "GB18030", 'G', 'B', '1', '8', '0', '3', '0', 0, 0))
           {
             if (m == 1)
               {
@@ -272,7 +278,7 @@ mbrtowc (wchar_t *pwc, const char *s, size_t n, mbstate_t *ps)
               }
             goto invalid;
           }
-        if (STREQ (encoding, "SJIS", 'S', 'J', 'I', 'S', 0, 0, 0, 0, 0))
+        if (STREQ_OPT (encoding, "SJIS", 'S', 'J', 'I', 'S', 0, 0, 0, 0, 0))
           {
             if (m == 1)
               {
diff --git a/lib/streq.h b/lib/streq.h
index b649411169..7fd07c8101 100644
--- a/lib/streq.h
+++ b/lib/streq.h
@@ -21,8 +21,8 @@
 
 #include <string.h>
 
-/* STREQ allows to optimize string comparison with a small literal string.
-     STREQ (s, "EUC-KR", 'E', 'U', 'C', '-', 'K', 'R', 0, 0, 0)
+/* STREQ_OPT allows to optimize string comparison with a small literal string.
+     STREQ_OPT (s, "EUC-KR", 'E', 'U', 'C', '-', 'K', 'R', 0, 0, 0)
    is semantically equivalent to
      strcmp (s, "EUC-KR") == 0
    just faster.  */
@@ -163,12 +163,12 @@ streq0 (const char *s1, const char *s2, char s20, char s21, char s22, char s23,
     return 0;
 }
 
-#define STREQ(s1,s2,s20,s21,s22,s23,s24,s25,s26,s27,s28) \
+#define STREQ_OPT(s1,s2,s20,s21,s22,s23,s24,s25,s26,s27,s28) \
   streq0 (s1, s2, s20, s21, s22, s23, s24, s25, s26, s27, s28)
 
 #else
 
-#define STREQ(s1,s2,s20,s21,s22,s23,s24,s25,s26,s27,s28) \
+#define STREQ_OPT(s1,s2,s20,s21,s22,s23,s24,s25,s26,s27,s28) \
   (strcmp (s1, s2) == 0)
 
 #endif
diff --git a/lib/uniwidth/cjk.h b/lib/uniwidth/cjk.h
index 127e5eef41..d008c573e0 100644
--- a/lib/uniwidth/cjk.h
+++ b/lib/uniwidth/cjk.h
@@ -22,16 +22,16 @@ is_cjk_encoding (const char *encoding)
 {
   if (0
       /* Legacy Japanese encodings */
-      || STREQ (encoding, "EUC-JP", 'E', 'U', 'C', '-', 'J', 'P', 0, 0, 0)
+      || STREQ_OPT (encoding, "EUC-JP", 'E', 'U', 'C', '-', 'J', 'P', 0, 0, 0)
       /* Legacy Chinese encodings */
-      || STREQ (encoding, "GB2312", 'G', 'B', '2', '3', '1', '2', 0, 0, 0)
-      || STREQ (encoding, "GBK", 'G', 'B', 'K', 0, 0, 0, 0, 0, 0)
-      || STREQ (encoding, "EUC-TW", 'E', 'U', 'C', '-', 'T', 'W', 0, 0, 0)
-      || STREQ (encoding, "BIG5", 'B', 'I', 'G', '5', 0, 0, 0, 0, 0)
+      || STREQ_OPT (encoding, "GB2312", 'G', 'B', '2', '3', '1', '2', 0, 0, 0)
+      || STREQ_OPT (encoding, "GBK", 'G', 'B', 'K', 0, 0, 0, 0, 0, 0)
+      || STREQ_OPT (encoding, "EUC-TW", 'E', 'U', 'C', '-', 'T', 'W', 0, 0, 0)
+      || STREQ_OPT (encoding, "BIG5", 'B', 'I', 'G', '5', 0, 0, 0, 0, 0)
       /* Legacy Korean encodings */
-      || STREQ (encoding, "EUC-KR", 'E', 'U', 'C', '-', 'K', 'R', 0, 0, 0)
-      || STREQ (encoding, "CP949", 'C', 'P', '9', '4', '9', 0, 0, 0, 0)
-      || STREQ (encoding, "JOHAB", 'J', 'O', 'H', 'A', 'B', 0, 0, 0, 0))
+      || STREQ_OPT (encoding, "EUC-KR", 'E', 'U', 'C', '-', 'K', 'R', 0, 0, 0)
+      || STREQ_OPT (encoding, "CP949", 'C', 'P', '9', '4', '9', 0, 0, 0, 0)
+      || STREQ_OPT (encoding, "JOHAB", 'J', 'O', 'H', 'A', 'B', 0, 0, 0, 0))
     return 1;
   return 0;
 }
diff --git a/lib/wcwidth.c b/lib/wcwidth.c
index faa01cfd55..44503b04bb 100644
--- a/lib/wcwidth.c
+++ b/lib/wcwidth.c
@@ -32,7 +32,7 @@ wcwidth (wchar_t wc)
 {
   /* In UTF-8 locales, use a Unicode aware width function.  */
   const char *encoding = locale_charset ();
-  if (STREQ (encoding, "UTF-8", 'U', 'T', 'F', '-', '8', 0, 0, 0 ,0))
+  if (STREQ_OPT (encoding, "UTF-8", 'U', 'T', 'F', '-', '8', 0, 0, 0 ,0))
     {
       /* We assume that in a UTF-8 locale, a wide character is the same as a
          Unicode character.  */