clean up internal locale stuff

1 files changed, 113 insertions, 0 deletions

diff --git a/src/nonstd/_locale.h b/src/nonstd/_locale.h
new file mode 100644
index 00000000..40e66548
--- /dev/null
+++ b/src/nonstd/_locale.h
@@ -0,0 +1,113 @@
+#include <locale.h>
+#include <limits.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "nonstd/locale.h"
+#include "nonstd/ctype.h"
+
+/*
+#define LC_COLLATE_MASK (1<<0)
+#define LC_CTYPE_MASK (1<<1)
+#define LC_MONETARY_MASK (1<<2)
+#define LC_NUMERIC_MASK (1<<3)
+#define LC_TIME_MASK (1<<4)
+#define LC_MESSAGES_MASK (1<<5)
+*/
+
+#define stringreplace(_old, _new) do { \
+	_old = realloc(_old, strlen(_new) + 1); \
+	if (_old == NULL) { \
+		return NULL; \
+	} \
+	strcpy(_old, _new); \
+} while (0)
+
+static char * (__load_locale)(struct __locale_t *loc, int mask, const char *name)
+{
+	char localepath[FILENAME_MAX] = "/lib/locale/";
+	strcat(localepath, name);
+
+	FILE *localefile = fopen(localepath, "rb");
+	if (localefile == NULL && strcmp(name, "C") && strcmp(name, "POSIX")) {
+		return NULL;
+	}
+
+	if (mask & LC_COLLATE_MASK) {
+		stringreplace(loc->collate, name);
+
+		/* read from file */
+		loc->collation = NULL;
+	}
+
+	if (mask & LC_CTYPE_MASK) {
+		stringreplace(loc->ctype, name);
+
+		if (localefile == NULL) {
+			int i;
+			loc->ctattr = realloc(loc->ctattr, CHAR_MAX);
+
+			for (i = 0; i < 32; i++) {
+				loc->ctattr[i] = CT_CNTRL;
+			}
+			for (i = 'a'; i < 'z'; i++) {
+				loc->ctattr[i] = CT_LOWER;
+			}
+			for (i = 'A'; i < 'Z'; i++) {
+				loc->ctattr[i] = CT_UPPER;
+			}
+			for (i = '0'; i < '9'; i++) {
+				loc->ctattr[i] = CT_DIGIT | CT_XDIGIT;
+			}
+			/* others */
+
+			loc->ctoupper = realloc(loc->ctoupper, CHAR_MAX);
+			for (i = 0; i < CHAR_MAX; i++) {
+				loc->ctoupper[i] = ('a' <= i && i <= 'z') ? i + 32 : i;
+			}
+
+			loc->ctolower = realloc(loc->ctolower, CHAR_MAX);
+			for (i = 0; i < CHAR_MAX; i++) {
+				loc->ctolower[i] = ('A' <= i && i <= 'Z') ? i - 32 : i;
+			}
+		} else {
+			/* read from file */
+			loc->ctattr = NULL;
+			loc->ctoupper = NULL;
+			loc->ctolower = NULL;
+		}
+	}
+
+	if (mask & LC_MONETARY_MASK) {
+		stringreplace(loc->monetary, name);
+
+		/*
+		loc->mn.monetary fields;
+		*/
+	}
+
+	if (mask & LC_NUMERIC_MASK) {
+		stringreplace(loc->numeric, name);
+
+		/*
+		loc->mn.numeric fields
+		*/
+	}
+
+	if (mask & LC_TIME_MASK) {
+		stringreplace(loc->time, name);
+
+		/* read from file */
+		/* loc->lc_time */
+	}
+
+	if (mask & LC_MESSAGES_MASK) {
+		stringreplace(loc->messages, name);
+
+		/* read */
+		loc->lc_messages.yesexpr = NULL;
+		loc->lc_messages.noexpr = NULL;
+	}
+
+	return name;
+}