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-rw-r--r--include/ctype.h223
1 files changed, 218 insertions, 5 deletions
diff --git a/include/ctype.h b/include/ctype.h
index d788c10..eeff9ce 100644
--- a/include/ctype.h
+++ b/include/ctype.h
@@ -55,7 +55,7 @@ int (isalpha)(int) /* [0x41, 0x5A], [0x61, 0x7A] */
#define isalpha(c) (islower(tolower(c)))
-#ifdef _GNU_SOURCE
+#if defined(_GNU_SOURCE) && !defined(__PORTABLE)
/**
* Check whether a character is a regular blank space
* or a horizontal tabulation.
@@ -241,7 +241,7 @@ int (toupper)(int) /* [0x61, 0x7A] -> [0x41, 0x5A] */
* Check whether a character is an ASCII character.
*
* @param c The character
- * @return - Whether the character is an ASCII character.
+ * @return Whether the character is an ASCII character.
*/
int (isascii)(int) /* [0x00, 0x7E] */
__GCC_ONLY(__attribute__((const)));
@@ -253,8 +253,8 @@ int (isascii)(int) /* [0x00, 0x7E] */
* Note that this does not make a proper character set
* convertion and the result is virtually arbitrary.
*
- * @param c The character.
- * @param c The character with the 8:th bit cleared.
+ * @param c The character.
+ * @return The character with the 8:th bit cleared.
*/
int (toascii)(int)
__warning("Using 'toascii' is, generally, unwise.")
@@ -281,7 +281,220 @@ int _toupper(int)
-/* TODO _l variants */
+/**
+ * Check whether a character is an alphabetical
+ * character or a decimal digit.
+ *
+ * @param c The character.
+ * @param locale The locale.
+ * @return Whether the character is
+ * alphabetical or numerical.
+ */
+int isalnum_l(int, locale_t)
+ __warning("This function is dangerous, use 'iswalnum_l' instead.")
+ __GCC_ONLY(__attribute__((const)));
+
+/**
+ * Check whether a character is an alphabetical character.
+ *
+ * @param c The character.
+ * @param locale The locale.
+ * @return Whether the character is alphabetical.
+ */
+int isalpha_l(int, locale_t)
+ __warning("This function is dangerous, use 'iswalpha_l' instead.")
+ __GCC_ONLY(__attribute__((const)));
+
+#if defined(_GNU_SOURCE) && !defined(__PORTABLE)
+/**
+ * Check whether a character is a regular blank space
+ * or a horizontal tabulation.
+ *
+ * This is a GNU extension.
+ *
+ * @param c The character.
+ * @param locale The locale.
+ * @return Whether the character is a ' ' or a '\t'.
+ */
+int isblank_l(int, locale_t)
+ __warning("This function is dangerous, use 'iswblank_l' instead.")
+ __GCC_ONLY(__attribute__((const)));
+#endif
+
+/**
+ * Check whether a character is a non-printable
+ * ASCII character.
+ *
+ * @param c The character.
+ * @param locale The locale.
+ * @return Whether the character is non-printable.
+ */
+int iscntrl_l(int, locale_t)
+ __warning("This function is dangerous, use 'iswcntrl_l' instead.")
+ __GCC_ONLY(__attribute__((const)));
+
+/**
+ * Check whether a character is a decimal digit.
+ *
+ * @param c The character.
+ * @param locale The locale.
+ * @return Whether the character is numerical.
+ */
+int isdigit_l(int, locale_t)
+ __warning("This function is dangerous, use 'iswdigit_l' instead.")
+ __GCC_ONLY(__attribute__((const)));
+
+/**
+ * Check whether a character is has a printable glyph.
+ *
+ * @param c The character.
+ * @param locale The locale.
+ * @return Whether the character has a glyph.
+ */
+int isgraph_l(int, locale_t)
+ __warning("This function is dangerous, use 'iswgraph_l' instead.")
+ __GCC_ONLY(__attribute__((const)));
+
+/**
+ * Check whether a character is a lowercase
+ * alphabetical character.
+ *
+ * @param c The character.
+ * @param locale The locale.
+ * @return Whether the character is a lowercase letter.
+ */
+int islower_l(int, locale_t)
+ __warning("This function is dangerous, use 'iswlower_l' instead.")
+ __GCC_ONLY(__attribute__((const)));
+
+/**
+ * Check whether a character is has a printable glyph
+ * or a blank space.
+ *
+ * @param c The character.
+ * @param locale The locale.
+ * @return Whether the character has a printable
+ * glyph or is a blank space.
+ */
+int isprint_l(int, locale_t)
+ __warning("This function is dangerous, use 'iswprint_l' instead.")
+ __GCC_ONLY(__attribute__((const)));
+
+/**
+ * Check whether a character is has a punctuation,
+ * that is, a printable character but a blank space,
+ * numerical or alphabetical.
+ *
+ * @param c The character.
+ * @param locale The locale.
+ * @return Whether the character is a punctuation.
+ */
+int ispunct_l(int, locale_t)
+ __warning("This function is dangerous, use 'iswpunct_l' instead.")
+ __GCC_ONLY(__attribute__((const)));
+
+/**
+ * Check whether a character is a whitespace character.
+ *
+ * @param c The character.
+ * @param locale The locale.
+ * @return Whether the character is a
+ * whitespace character.
+ */
+int isspace_l(int, locale_t)
+ __warning("This function is dangerous, use 'iswspace_l' instead.")
+ __GCC_ONLY(__attribute__((const)));
+
+/**
+ * Check whether a character is an uppercase
+ * alphabetical character.
+ *
+ * @param c The character.
+ * @param locale The locale.
+ * @return Whether the character is a uppercase letter.
+ */
+int isupper_l(int, locale_t)
+ __warning("This function is dangerous, use 'iswupper_l' instead.")
+ __GCC_ONLY(__attribute__((const)));
+
+/**
+ * Check whether a character is an ASCII
+ * hexadecimal digit. Both uppercase and
+ * lowercase is supported.
+ *
+ * @param c The character.
+ * @param locale The locale.
+ * @return Whether the character is in
+ * ['0', '9'], ['A', 'Z'], or ['a', 'z'].
+ */
+int isxdigit_l(int, locale_t)
+ __warning("This function is dangerous, use 'iswxdigit_l' instead.")
+ __GCC_ONLY(__attribute__((const)));
+
+/**
+ * Check whether a character is an ASCII character.
+ *
+ * @param c The character
+ * @param locale The locale.
+ * @return Whether the character is an ASCII character.
+ */
+int isascii_l(int, locale_t)
+ __warning("This function is dangerous, use 'isascii_l' instead.")
+ __GCC_ONLY(__attribute__((const)));
+
+/**
+ * Remove the 8:th bit from a character.
+ *
+ * Note that this does not make a proper character set
+ * convertion and the result is virtually arbitrary.
+ *
+ * @param c The character.
+ * @param locale The locale.
+ * @return The character with the 8:th bit cleared.
+ */
+int toascii_l(int, locale_t)
+ __warning("This function is dangerous, use 'towascii_l' instead.")
+ __GCC_ONLY(__attribute__((const)));
+
+/**
+ * Convert a uppercase ASCII character to
+ * an lowercase ASCII character.
+ *
+ * The function's behaviour is unspecifed
+ * of the character is not alphabetical.
+ * You should consider running
+ * `(isupper_l(c, l) ? tolower_l(c, l) : c)`
+ * instead.
+ *
+ * @param c The character.
+ * @param locale The locale.
+ * @return The character in lowercase.
+ * Guaranteed to be unchanged if the
+ * character already is in lowercase.
+ */
+int tolower_l(int, locale_t)
+ __warning("This function is dangerous, use 'iswlower_l' instead.")
+ __GCC_ONLY(__attribute__((const)));
+
+/**
+ * Convert a lowercase ASCII character to
+ * an uppercase ASCII character.
+ *
+ * The function's behaviour is unspecifed
+ * of the character is not alphabetical.
+ * You should consider running
+ * `(isupper_l(c, l) ? tolower_l(c, l) : c)`
+ * instead.
+ *
+ * @param c The character.
+ * @param locale The locale.
+ * @return The character in uppercase.
+ * Guaranteed to be unchanged if the
+ * character already is in lowercase.
+ */
+int toupper_l(int, locale_t)
+ __warning("This function is dangerous, use 'iswupper_l' instead.")
+ __GCC_ONLY(__attribute__((const)));