Avoid using ASCII grave as a quote

8 files changed, 31 insertions, 30 deletions

diff --git a/NEWS b/NEWS
index 40c994ce..fe0d5cca 100644
--- a/NEWS
+++ b/NEWS
@@ -4,6 +4,7 @@ serd (0.31.0) unstable; urgency=medium
   * Add serd_reader_skip_until_byte() to public API
   * Allow SERD_API to be defined by the user
   * Avoid creating test files in the current directory
+  * Avoid using ASCII grave as a quote
   * Clean up code
   * Fix crash when trying to read chunks without starting
   * Fix hang when skipping an error at EOF when lax parsing
@@ -14,7 +15,7 @@ serd (0.31.0) unstable; urgency=medium
   * Replace duplicated dox_to_sphinx script with sphinxygen dependency
   * Test header for warnings more strictly
 
- -- David Robillard <d@drobilla.net>  Mon, 19 Dec 2022 23:55:26 +0000
+ -- David Robillard <d@drobilla.net>  Tue, 20 Dec 2022 12:31:33 +0000
 
 serd (0.30.16) stable; urgency=medium
 
diff --git a/include/serd/serd.h b/include/serd/serd.h
index c1d1a8b1..cc42c842 100644
--- a/include/serd/serd.h
+++ b/include/serd/serd.h
@@ -478,8 +478,8 @@ serd_node_new_relative_uri(const SerdURI* SERD_NONNULL  uri,
 /**
    Create a new node by serialising `d` into an xsd:decimal string.
 
-   The resulting node will always contain a `.', start with a digit, and end
-   with a digit (i.e. will have a leading and/or trailing `0' if necessary).
+   The resulting node will always contain a '.', start with a digit, and end
+   with a digit (i.e. will have a leading and/or trailing '0' if necessary).
    It will never be in scientific notation.  A maximum of `frac_digits` digits
    will be written after the decimal point, but trailing zeros will
    automatically be omitted (except one if `d` is a round integer).
diff --git a/src/n3.c b/src/n3.c
index 6577fa3b..11461e76 100644
--- a/src/n3.c
+++ b/src/n3.c
@@ -54,7 +54,7 @@ read_HEX(SerdReader* const reader)
     return (uint8_t)eat_byte_safe(reader, c);
   }
 
-  r_err(reader, SERD_ERR_BAD_SYNTAX, "invalid hexadecimal digit `%c'\n", c);
+  r_err(reader, SERD_ERR_BAD_SYNTAX, "invalid hexadecimal digit '%c'\n", c);
   return 0;
 }
 
@@ -340,7 +340,7 @@ read_STRING_LITERAL_LONG(SerdReader* const    reader,
       uint32_t code = 0;
       if ((st = read_ECHAR(reader, ref, flags)) &&
           (st = read_UCHAR(reader, ref, &code))) {
-        return r_err(reader, st, "invalid escape `\\%c'\n", peek_byte(reader));
+        return r_err(reader, st, "invalid escape '\\%c'\n", peek_byte(reader));
       }
     } else if (c == q) {
       skip_byte(reader, q);
@@ -388,7 +388,7 @@ read_STRING_LITERAL(SerdReader* const    reader,
       skip_byte(reader, c);
       if ((st = read_ECHAR(reader, ref, flags)) &&
           (st = read_UCHAR(reader, ref, &code))) {
-        return r_err(reader, st, "invalid escape `\\%c'\n", peek_byte(reader));
+        return r_err(reader, st, "invalid escape '\\%c'\n", peek_byte(reader));
       }
       break;
     default:
@@ -629,7 +629,7 @@ read_PN_PREFIX_tail(SerdReader* const reader, const Ref dest)
 
   const SerdNode* const n = deref(reader, dest);
   if (n->buf[n->n_bytes - 1] == '.' && read_PN_CHARS(reader, dest)) {
-    return r_err(reader, SERD_ERR_BAD_SYNTAX, "prefix ends with `.'\n");
+    return r_err(reader, SERD_ERR_BAD_SYNTAX, "prefix ends with '.'\n");
   }
 
   return SERD_SUCCESS;
@@ -650,7 +650,7 @@ read_LANGTAG(SerdReader* const reader, Ref* const dest)
 {
   int c = peek_byte(reader);
   if (!is_alpha(c)) {
-    return r_err(reader, SERD_ERR_BAD_SYNTAX, "unexpected `%c'\n", c);
+    return r_err(reader, SERD_ERR_BAD_SYNTAX, "unexpected '%c'\n", c);
   }
 
   *dest = push_node(reader, SERD_LITERAL, "", 0);
@@ -676,7 +676,7 @@ read_IRIREF_scheme(SerdReader* const reader, const Ref dest)
 {
   int c = peek_byte(reader);
   if (!is_alpha(c)) {
-    return r_err(reader, SERD_ERR_BAD_SYNTAX, "bad IRI scheme start `%c'\n", c);
+    return r_err(reader, SERD_ERR_BAD_SYNTAX, "bad IRI scheme start '%c'\n", c);
   }
 
   while ((c = peek_byte(reader)) != EOF) {
@@ -724,7 +724,7 @@ read_IRIREF(SerdReader* const reader, Ref* const dest)
     case '<':
       *dest = pop_node(reader, *dest);
       return r_err(
-        reader, SERD_ERR_BAD_SYNTAX, "invalid IRI character `%c'\n", c);
+        reader, SERD_ERR_BAD_SYNTAX, "invalid IRI character '%c'\n", c);
 
     case '>':
       return SERD_SUCCESS;
@@ -757,7 +757,7 @@ read_IRIREF(SerdReader* const reader, Ref* const dest)
     case '}':
       *dest = pop_node(reader, *dest);
       return r_err(
-        reader, SERD_ERR_BAD_SYNTAX, "invalid IRI character `%c'\n", c);
+        reader, SERD_ERR_BAD_SYNTAX, "invalid IRI character '%c'\n", c);
 
     default:
       if (c <= 0x20) {
@@ -844,7 +844,7 @@ read_number(SerdReader* const reader,
   }
   if ((c = peek_byte(reader)) == '.') {
     has_decimal = true;
-    // decimal case 2 (e.g. '.0' or `-.0' or `+.0')
+    // decimal case 2 (e.g. '.0' or '-.0' or '+.0')
     push_byte(reader, *dest, eat_byte_safe(reader, c));
     TRY(st, read_0_9(reader, *dest, true));
   } else {
@@ -931,7 +931,7 @@ read_literal(SerdReader* const    reader,
   case '^':
     skip_byte(reader, '^');
     if (!eat_byte_check(reader, '^')) {
-      return r_err(reader, SERD_ERR_BAD_SYNTAX, "expected `^'\n");
+      return r_err(reader, SERD_ERR_BAD_SYNTAX, "expected '^'\n");
     }
 
     if ((st = read_iri(reader, datatype, ate_dot))) {
@@ -1027,7 +1027,7 @@ read_BLANK_NODE_LABEL(SerdReader* const reader,
         *dest = pop_node(reader, *dest);
         return r_err(reader,
                      SERD_ERR_ID_CLASH,
-                     "found both `b' and `B' blank IDs, prefix required\n");
+                     "found both 'b' and 'B' blank IDs, prefix required\n");
       }
     }
   }
@@ -1039,7 +1039,7 @@ static Ref
 read_blankName(SerdReader* const reader)
 {
   if (skip_byte(reader, '=') || eat_byte_check(reader, '=') != '=') {
-    r_err(reader, SERD_ERR_BAD_SYNTAX, "expected `='\n");
+    r_err(reader, SERD_ERR_BAD_SYNTAX, "expected '='\n");
     return 0;
   }
 
@@ -1089,7 +1089,7 @@ read_anon(SerdReader* const reader,
     bool ate_dot_in_list = false;
     read_predicateObjectList(reader, ctx, &ate_dot_in_list);
     if (ate_dot_in_list) {
-      return r_err(reader, SERD_ERR_BAD_SYNTAX, "`.' inside blank\n");
+      return r_err(reader, SERD_ERR_BAD_SYNTAX, "'.' inside blank\n");
     }
 
     read_ws_star(reader);
@@ -1383,7 +1383,7 @@ read_subject(SerdReader* const reader,
 
   if (ate_dot) {
     pop_node(reader, *dest);
-    return r_err(reader, SERD_ERR_BAD_SYNTAX, "subject ends with `.'\n");
+    return r_err(reader, SERD_ERR_BAD_SYNTAX, "subject ends with '.'\n");
   }
 
   return st;
@@ -1560,7 +1560,7 @@ read_wrappedGraph(SerdReader* const reader, ReadContext* const ctx)
   skip_byte(reader, '}');
   read_ws_star(reader);
   if (peek_byte(reader) == '.') {
-    return r_err(reader, SERD_ERR_BAD_SYNTAX, "graph followed by `.'\n");
+    return r_err(reader, SERD_ERR_BAD_SYNTAX, "graph followed by '.'\n");
   }
 
   return SERD_SUCCESS;
diff --git a/src/node.c b/src/node.c
index addaa07b..7e8ebeb9 100644
--- a/src/node.c
+++ b/src/node.c
@@ -36,13 +36,13 @@ serd_uri_string_length(const SerdURI* const uri)
     len += (field).len + (n_delims); \
   }
 
-  ADD_LEN(uri->path, 1)      // + possible leading `/'
-  ADD_LEN(uri->scheme, 1)    // + trailing `:'
-  ADD_LEN(uri->authority, 2) // + leading `//'
-  ADD_LEN(uri->query, 1)     // + leading `?'
-  ADD_LEN(uri->fragment, 1)  // + leading `#'
+  ADD_LEN(uri->path, 1)      // + possible leading '/'
+  ADD_LEN(uri->scheme, 1)    // + trailing ':'
+  ADD_LEN(uri->authority, 2) // + leading '//'
+  ADD_LEN(uri->query, 1)     // + leading '?'
+  ADD_LEN(uri->fragment, 1)  // + leading '#'
 
-  return len + 2; // + 2 for authority `//'
+  return len + 2; // + 2 for authority '//'
 }
 
 static size_t
diff --git a/src/reader.h b/src/reader.h
index e2f8cdb9..0ec48380 100644
--- a/src/reader.h
+++ b/src/reader.h
@@ -146,7 +146,7 @@ eat_byte_check(SerdReader* reader, const int byte)
 {
   const int c = peek_byte(reader);
   if (c != byte) {
-    r_err(reader, SERD_ERR_BAD_SYNTAX, "expected `%c', not `%c'\n", byte, c);
+    r_err(reader, SERD_ERR_BAD_SYNTAX, "expected '%c', not '%c'\n", byte, c);
     return 0;
   }
   return eat_byte_safe(reader, byte);
diff --git a/src/serdi.c b/src/serdi.c
index 097226e4..a5a00c57 100644
--- a/src/serdi.c
+++ b/src/serdi.c
@@ -49,7 +49,7 @@ get_syntax(const char* const name)
     }
   }
 
-  SERDI_ERRORF("unknown syntax `%s'\n", name);
+  SERDI_ERRORF("unknown syntax '%s'\n", name);
   return (SerdSyntax)0;
 }
 
diff --git a/src/uri.c b/src/uri.c
index 151f63e3..8acb79b3 100644
--- a/src/uri.c
+++ b/src/uri.c
@@ -18,7 +18,7 @@ serd_uri_to_path(const uint8_t* uri)
   const uint8_t* path = uri;
   if (!is_windows_path(uri) && serd_uri_string_has_scheme(uri)) {
     if (!!strncmp((const char*)uri, "file:", 5)) {
-      fprintf(stderr, "Non-file URI `%s'\n", uri);
+      fprintf(stderr, "Non-file URI '%s'\n", uri);
       return NULL;
     }
 
@@ -27,7 +27,7 @@ serd_uri_to_path(const uint8_t* uri)
     } else if (!strncmp((const char*)uri, "file://", 7)) {
       path = uri + 7;
     } else {
-      fprintf(stderr, "Invalid file URI `%s'\n", uri);
+      fprintf(stderr, "Invalid file URI '%s'\n", uri);
       return NULL;
     }
 
@@ -485,7 +485,7 @@ serd_uri_serialise_relative(const SerdURI* const uri,
   }
 
   if (uri->fragment.buf) {
-    // Note uri->fragment.buf includes the leading `#'
+    // Note uri->fragment.buf includes the leading '#'
     len += sink(uri->fragment.buf, uri->fragment.len, stream);
   }
 
diff --git a/src/writer.c b/src/writer.c
index d2609cf5..341ee79b 100644
--- a/src/writer.c
+++ b/src/writer.c
@@ -642,7 +642,7 @@ write_curie(SerdWriter* const        writer,
   case SERD_NTRIPLES:
   case SERD_NQUADS:
     if ((st = serd_env_expand(writer->env, node, &prefix, &suffix))) {
-      w_err(writer, st, "undefined namespace prefix `%s'\n", node->buf);
+      w_err(writer, st, "undefined namespace prefix '%s'\n", node->buf);
       return false;
     }
     write_sep(writer, SEP_URI_BEGIN);