lib: Add mlibc

Signed-off-by: Ian Moffett <ian@osmora.org>

1 files changed, 144 insertions, 0 deletions

diff --git a/lib/mlibc/options/internal/generic/charset.cpp b/lib/mlibc/options/internal/generic/charset.cpp
new file mode 100644
index 0000000..c42b4f4
--- /dev/null
+++ b/lib/mlibc/options/internal/generic/charset.cpp
@@ -0,0 +1,144 @@
+
+#include <bits/ensure.h>
+#include <mlibc/charset.hpp>
+#include <mlibc/debug.hpp>
+
+namespace mlibc {
+
+bool charset::is_ascii_superset() {
+	// TODO: For locales that change the meaning of ASCII chars, this needs to be changed.
+	return true;
+}
+
+bool charset::is_alpha(codepoint c) {
+	if(c <= 0x7F && is_ascii_superset())
+		return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z');
+	if(c > 0x7F)
+		mlibc::infoLogger() << "mlibc: charset::is_alpha() is not implemented"
+				" for the full Unicode charset" << frg::endlog;
+	return false;
+}
+
+bool charset::is_digit(codepoint c) {
+	if(c <= 0x7F && is_ascii_superset())
+		return c >= '0' && c <= '9';
+	if(c > 0x7F)
+		mlibc::infoLogger() << "mlibc: charset::is_digit() is not implemented"
+				" for the full Unicode charset" << frg::endlog;
+	return false;
+}
+
+bool charset::is_xdigit(codepoint c) {
+	if(c <= 0x7F && is_ascii_superset())
+		return (c >= '0' && c <= '9') || (c >= 'a' && c <= 'f') || (c >= 'A' && c <= 'F');
+	if(c > 0x7F)
+		mlibc::infoLogger() << "mlibc: charset::is_xdigit() is not implemented"
+				" for the full Unicode charset" << frg::endlog;
+	return false;
+}
+
+bool charset::is_alnum(codepoint c) {
+	if(c <= 0x7F && is_ascii_superset())
+		return (c >= '0' && c <= '9') || (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z');
+	if(c > 0x7F)
+		mlibc::infoLogger() << "mlibc: charset::is_alnum() is not implemented"
+				" for the full Unicode charset" << frg::endlog;
+	return false;
+}
+
+bool charset::is_punct(codepoint c) {
+	if(c <= 0x7F && is_ascii_superset())
+		return c == '!' || c == '"' || c == '#' || c == '$' || c == '%' || c == '&'
+				|| c == '\'' || c == '(' || c == ')' || c == '*' || c == '+' || c == ','
+				|| c == '-' || c == '.' || c == '/'
+				|| c == ':' || c == ';' || c == '<' || c == '=' || c == '>' || c == '?'
+				|| c == '@'
+				|| c == '[' || c == '\\' || c == ']' || c == '^' || c == '_' || c == '`'
+				|| c == '{' || c == '|' || c == '}' || c == '~';
+	if(c > 0x7F)
+		mlibc::infoLogger() << "mlibc: charset::is_punct() is not implemented"
+				" for the full Unicode charset" << frg::endlog;
+	return false;
+}
+
+bool charset::is_graph(codepoint c) {
+	if(c <= 0x7F && is_ascii_superset())
+		return c >= 0x21 && c <= 0x7E;
+	if(c > 0x7F)
+		mlibc::infoLogger() << "mlibc: charset::is_graph() is not implemented"
+				" for the full Unicode charset" << frg::endlog;
+	return false;
+}
+
+bool charset::is_blank(codepoint c) {
+	if(c <= 0x7F && is_ascii_superset())
+		return c == ' ' || c == '\t';
+	if(c > 0x7F)
+		mlibc::infoLogger() << "mlibc: charset::is_blank() is not implemented"
+				" for the full Unicode charset " << c << frg::endlog;
+	return false;
+}
+
+bool charset::is_space(codepoint c) {
+	if(c <= 0x7F && is_ascii_superset())
+		return c == ' ' || c == '\t' || c == '\n' || c == '\v' || c == '\f' || c == '\r';
+	if(c > 0x7F)
+		mlibc::infoLogger() << "mlibc: charset::is_space() is not implemented"
+				" for the full Unicode charset" << frg::endlog;
+	return false;
+}
+
+bool charset::is_print(codepoint c) {
+	if(c <= 0x7F && is_ascii_superset())
+		return c >= 0x20 && c <= 0x7E;
+	if(c > 0x7F)
+		mlibc::infoLogger() << "mlibc: charset::is_print() is not implemented"
+				" for the full Unicode charset" << frg::endlog;
+	return false;
+}
+
+bool charset::is_lower(codepoint c) {
+	if(c <= 0x7F && is_ascii_superset())
+		return (c >= 'a' && c <= 'z');
+	if(c > 0x7F)
+		mlibc::infoLogger() << "mlibc: charset::is_print() is not implemented"
+				" for the full Unicode charset" << frg::endlog;
+	return false;
+}
+
+bool charset::is_upper(codepoint c) {
+	if(c <= 0x7F && is_ascii_superset())
+		return (c >= 'A' && c <= 'Z');
+	if(c > 0x7F)
+		mlibc::infoLogger() << "mlibc: charset::is_print() is not implemented"
+				" for the full Unicode charset" << frg::endlog;
+	return false;
+}
+
+codepoint charset::to_lower(codepoint c) {
+	if(c <= 0x7F && is_ascii_superset())
+		if(c >= 'A' && c <= 'Z')
+			return c - 'A' + 'a';
+	if(c > 0x7F)
+		mlibc::infoLogger() << "mlibc: charset::to_lower() is not implemented"
+				" for the full Unicode charset" << frg::endlog;
+	return c;
+}
+
+codepoint charset::to_upper(codepoint c) {
+	if(c <= 0x7F && is_ascii_superset())
+		if(c >= 'a' && c <= 'z')
+			return c - 'a' + 'A';
+	if(c > 0x7F)
+		mlibc::infoLogger() << "mlibc: charset::to_upper() is not implemented"
+				" for the full Unicode charset" << frg::endlog;
+	return c;
+}
+
+charset *current_charset() {
+	static charset global_charset;
+	return &global_charset;
+}
+
+} // namespace mlibc
+