curl_ctype: private is*() type macros and functions

... since the libc provided one are locale dependent in a way we don't
want. Also, the "native" isalnum() (for example) works differently on
different platforms which caused test 1307 failures on macos only.

Closes #2269

1 files changed, 48 insertions, 0 deletions

diff --git a/lib/curl_ctype.h b/lib/curl_ctype.h
new file mode 100644
index 000000000..da3bd95a6
--- /dev/null
+++ b/lib/curl_ctype.h
@@ -0,0 +1,48 @@
+#ifndef HEADER_CURL_CTYPE_H
+#define HEADER_CURL_CTYPE_H
+/***************************************************************************
+ *                                  _   _ ____  _
+ *  Project                     ___| | | |  _ \| |
+ *                             / __| | | | |_) | |
+ *                            | (__| |_| |  _ <| |___
+ *                             \___|\___/|_| \_\_____|
+ *
+ * Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
+ *
+ * This software is licensed as described in the file COPYING, which
+ * you should have received as part of this distribution. The terms
+ * are also available at https://curl.haxx.se/docs/copyright.html.
+ *
+ * You may opt to use, copy, modify, merge, publish, distribute and/or sell
+ * copies of the Software, and permit persons to whom the Software is
+ * furnished to do so, under the terms of the COPYING file.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ***************************************************************************/
+
+int Curl_isspace(int c);
+int Curl_isdigit(int c);
+int Curl_isalnum(int c);
+int Curl_isxdigit(int c);
+int Curl_isgraph(int c);
+int Curl_isprint(int c);
+int Curl_isalpha(int c);
+int Curl_isupper(int c);
+int Curl_islower(int c);
+
+#define ISSPACE(x)  (Curl_isspace((int)  ((unsigned char)x)))
+#define ISDIGIT(x)  (Curl_isdigit((int)  ((unsigned char)x)))
+#define ISALNUM(x)  (Curl_isalnum((int)  ((unsigned char)x)))
+#define ISXDIGIT(x) (Curl_isxdigit((int) ((unsigned char)x)))
+#define ISGRAPH(x)  (Curl_isgraph((int)  ((unsigned char)x)))
+#define ISALPHA(x)  (Curl_isalpha((int)  ((unsigned char)x)))
+#define ISPRINT(x)  (Curl_isprint((int)  ((unsigned char)x)))
+#define ISUPPER(x)  (Curl_isupper((int)  ((unsigned char)x)))
+#define ISLOWER(x)  (Curl_islower((int)  ((unsigned char)x)))
+#define ISASCII(x)  (((x) >= 0) && ((x) <= 0x80))
+#define ISBLANK(x)  (int)((((unsigned char)x) == ' ') ||        \
+                          (((unsigned char)x) == '\t'))
+
+#endif /* HEADER_CURL_CTYPE_H */