Fortran: Replace simple '.' quotes by %<.%>

When using %qs instead of '%s' or %<=%> instead of '=' looks nicer
by having nicer quotes and bold text, if the terminal supports it;
otherwise, plain quotes are used.

gcc/fortran/ChangeLog:

	* match.cc (gfc_match_member_sep): Use %<...%> in gfc_error.
	* openmp.cc (gfc_match_oacc_routine, gfc_match_omp_context_selector,
	gfc_match_omp_context_selector_specification,
	gfc_match_omp_declare_variant, resolve_omp_clauses): Likewise;
	use %qs instead of '%s'.
	* primary.cc (match_real_constant, gfc_match_varspec): Likewise.
	* resolve.cc (gfc_resolve_formal_arglist, resolve_operator,
	resolve_ordinary_assign): Likewise.

4 files changed, 28 insertions, 28 deletions

diff --git a/gcc/fortran/match.cc b/gcc/fortran/match.cc
index 7ba0f34..89fb115 100644
--- a/gcc/fortran/match.cc
+++ b/gcc/fortran/match.cc
@@ -193,7 +193,7 @@ gfc_match_member_sep(gfc_symbol *sym)
   if (gfc_match_name (name) != MATCH_YES)
     {
       gfc_error ("Expected structure component or operator name "
-                 "after '.' at %C");
+		 "after %<.%> at %C");
       goto error;
     }
 
diff --git a/gcc/fortran/openmp.cc b/gcc/fortran/openmp.cc
index 4b4e6ac..7edc78a 100644
--- a/gcc/fortran/openmp.cc
+++ b/gcc/fortran/openmp.cc
@@ -4059,7 +4059,7 @@ gfc_match_oacc_routine (void)
       if (gfc_match_char (')') != MATCH_YES)
 	{
 	  gfc_error ("Syntax error in !$ACC ROUTINE ( NAME ) at %C, expecting"
-		     " ')' after NAME");
+		     " %<)%> after NAME");
 	  gfc_current_locus = old_loc;
 	  return MATCH_ERROR;
 	}
@@ -5348,8 +5348,8 @@ gfc_match_omp_context_selector (gfc_omp_set_selector *oss)
 		}
 	      else
 		{
-		  gfc_error ("selector '%s' not allowed for context selector "
-			     "set '%s' at %C",
+		  gfc_error ("selector %qs not allowed for context selector "
+			     "set %qs at %C",
 			     selector, oss->trait_set_selector_name);
 		  return MATCH_ERROR;
 		}
@@ -5368,7 +5368,7 @@ gfc_match_omp_context_selector (gfc_omp_set_selector *oss)
 	{
 	  if (property_kind == CTX_PROPERTY_NONE)
 	    {
-	      gfc_error ("selector '%s' does not accept any properties at %C",
+	      gfc_error ("selector %qs does not accept any properties at %C",
 			 selector);
 	      return MATCH_ERROR;
 	    }
@@ -5377,7 +5377,7 @@ gfc_match_omp_context_selector (gfc_omp_set_selector *oss)
 	    {
 	      if (gfc_match (" (") != MATCH_YES)
 		{
-		  gfc_error ("expected '(' at %C");
+		  gfc_error ("expected %<(%> at %C");
 		  return MATCH_ERROR;
 		}
 	      if (gfc_match_expr (&os->score) != MATCH_YES
@@ -5399,7 +5399,7 @@ gfc_match_omp_context_selector (gfc_omp_set_selector *oss)
 
 	      if (gfc_match (" )") != MATCH_YES)
 		{
-		  gfc_error ("expected ')' at %C");
+		  gfc_error ("expected %<)%> at %C");
 		  return MATCH_ERROR;
 		}
 
@@ -5512,7 +5512,7 @@ gfc_match_omp_context_selector (gfc_omp_set_selector *oss)
 
 	  if (gfc_match (" )") != MATCH_YES)
 	    {
-	      gfc_error ("expected ')' at %C");
+	      gfc_error ("expected %<)%> at %C");
 	      return MATCH_ERROR;
 	    }
 	}
@@ -5522,7 +5522,7 @@ gfc_match_omp_context_selector (gfc_omp_set_selector *oss)
 	{
 	  if (gfc_match (" (") != MATCH_YES)
 	    {
-	      gfc_error ("expected '(' at %C");
+	      gfc_error ("expected %<(%> at %C");
 	      return MATCH_ERROR;
 	    }
 	}
@@ -5568,22 +5568,22 @@ gfc_match_omp_context_selector_specification (gfc_omp_declare_variant *odv)
 
       if (m != MATCH_YES || i == selector_set_count)
 	{
-	  gfc_error ("expected 'construct', 'device', 'implementation' or "
-		     "'user' at %C");
+	  gfc_error ("expected %<constructs%>, %<device%>, %<implementation%> "
+		     "or %<user%> at %C");
 	  return MATCH_ERROR;
 	}
 
       m = gfc_match (" =");
       if (m != MATCH_YES)
 	{
-	  gfc_error ("expected '=' at %C");
+	  gfc_error ("expected %<=%> at %C");
 	  return MATCH_ERROR;
 	}
 
       m = gfc_match (" {");
       if (m != MATCH_YES)
 	{
-	  gfc_error ("expected '{' at %C");
+	  gfc_error ("expected %<{%> at %C");
 	  return MATCH_ERROR;
 	}
 
@@ -5598,7 +5598,7 @@ gfc_match_omp_context_selector_specification (gfc_omp_declare_variant *odv)
       m = gfc_match (" }");
       if (m != MATCH_YES)
 	{
-	  gfc_error ("expected '}' at %C");
+	  gfc_error ("expected %<}%> at %C");
 	  return MATCH_ERROR;
 	}
 
@@ -5620,7 +5620,7 @@ gfc_match_omp_declare_variant (void)
 
   if (gfc_match (" (") != MATCH_YES)
     {
-      gfc_error ("expected '(' at %C");
+      gfc_error ("expected %<(%> at %C");
       return MATCH_ERROR;
     }
 
@@ -5668,7 +5668,7 @@ gfc_match_omp_declare_variant (void)
 
   if (gfc_match (" )") != MATCH_YES)
     {
-      gfc_error ("expected ')' at %C");
+      gfc_error ("expected %<)%> at %C");
       return MATCH_ERROR;
     }
 
@@ -5678,7 +5678,7 @@ gfc_match_omp_declare_variant (void)
 	{
 	  if (first_p)
 	    {
-	      gfc_error ("expected 'match' at %C");
+	      gfc_error ("expected %<match%> at %C");
 	      return MATCH_ERROR;
 	    }
 	  else
@@ -5687,7 +5687,7 @@ gfc_match_omp_declare_variant (void)
 
       if (gfc_match (" (") != MATCH_YES)
 	{
-	  gfc_error ("expected '(' at %C");
+	  gfc_error ("expected %<(%> at %C");
 	  return MATCH_ERROR;
 	}
 
@@ -5696,7 +5696,7 @@ gfc_match_omp_declare_variant (void)
 
       if (gfc_match (" )") != MATCH_YES)
 	{
-	  gfc_error ("expected ')' at %C");
+	  gfc_error ("expected %<)%> at %C");
 	  return MATCH_ERROR;
 	}
 
@@ -7378,7 +7378,7 @@ resolve_omp_clauses (gfc_code *code, gfc_omp_clauses *omp_clauses,
 
 	  for (n = omp_clauses->lists[OMP_LIST_ALLOCATE]; n; n = n->next)
 	    if (n->sym->mark == 1)
-	      gfc_error ("%qs specified in 'allocate' clause at %L but not "
+	      gfc_error ("%qs specified in %<allocate%> clause at %L but not "
 			 "in an explicit privatization clause",
 			 n->sym->name, &n->where);
 	}
diff --git a/gcc/fortran/primary.cc b/gcc/fortran/primary.cc
index 19f2e78..21a8eb7 100644
--- a/gcc/fortran/primary.cc
+++ b/gcc/fortran/primary.cc
@@ -586,7 +586,7 @@ match_real_constant (gfc_expr **result, int signflag)
 
   if (c == 'q')
     {
-      if (!gfc_notify_std (GFC_STD_GNU, "exponent-letter 'q' in "
+      if (!gfc_notify_std (GFC_STD_GNU, "exponent-letter %<q%> in "
 			   "real-literal-constant at %C"))
 	return MATCH_ERROR;
       else if (warn_real_q_constant)
@@ -2070,8 +2070,8 @@ gfc_match_varspec (gfc_expr *primary, int equiv_flag, bool sub_flag,
 	  || (sym->ts.type == BT_CLASS && CLASS_DATA (sym)
 	      && CLASS_DATA (sym)->attr.dimension))
 	{
-	  gfc_error ("Array section designator, e.g. '(:)', is required "
-		     "besides the coarray designator '[...]' at %C");
+	  gfc_error ("Array section designator, e.g. %<(:)%>, is required "
+		     "besides the coarray designator %<[...]%> at %C");
 	  return MATCH_ERROR;
 	}
       if ((sym->ts.type != BT_CLASS && !sym->attr.codimension)
diff --git a/gcc/fortran/resolve.cc b/gcc/fortran/resolve.cc
index 158bf08..0f5f1d2 100644
--- a/gcc/fortran/resolve.cc
+++ b/gcc/fortran/resolve.cc
@@ -514,7 +514,7 @@ gfc_resolve_formal_arglist (gfc_symbol *proc)
 	    {
 	      /* F03:C1263 (R1238) The function-name and each dummy-arg-name
 		 shall be specified, explicitly or implicitly, to be scalar.  */
-	      gfc_error ("Argument '%s' of statement function '%s' at %L "
+	      gfc_error ("Argument %qs of statement function %qs at %L "
 			 "must be scalar", sym->name, proc->name,
 			 &proc->declared_at);
 	      continue;
@@ -4381,8 +4381,8 @@ resolve_operator (gfc_expr *e)
 	  guessed = lookup_uop_fuzzy (name, e->value.op.uop->ns->uop_root);
 	  if (guessed)
 	    snprintf (msg, sizeof (msg),
-		      _("Unknown operator %%<%s%%> at %%L; did you mean '%s'?"),
-		      name, guessed);
+		      _("Unknown operator %%<%s%%> at %%L; did you mean "
+			"%%<%s%%>?"), name, guessed);
 	  else
 	    snprintf (msg, sizeof (msg), _("Unknown operator %%<%s%%> at %%L"),
 		      name);
@@ -8213,7 +8213,7 @@ check_symbols:
 	{
 	  if (i == (ar->dimen + ar->codimen - 1))
 	    {
-	      gfc_error ("Expected '*' in coindex specification in ALLOCATE "
+	      gfc_error ("Expected %<*%> in coindex specification in ALLOCATE "
 			 "statement at %L", &e->where);
 	      goto failure;
 	    }
@@ -11187,7 +11187,7 @@ resolve_ordinary_assign (gfc_code *code, gfc_namespace *ns)
     {
       gfc_error ("Nonallocatable variable must not be polymorphic in intrinsic "
 		 "assignment at %L - check that there is a matching specific "
-		 "subroutine for '=' operator", &lhs->where);
+		 "subroutine for %<=%> operator", &lhs->where);
       return false;
     }