win32: code shrink character class detection

Add a routine to detect the names of character classes.  Use it
in fnmatch(3) and regcomp(3), replacing local code in the former.

Saves 216 bytes.

1 files changed, 11 insertions, 0 deletions

diff --git a/win32/match_class.h b/win32/match_class.h
new file mode 100644
index 000000000..92fd1323f
--- /dev/null
+++ b/win32/match_class.h
@@ -0,0 +1,11 @@
+#define CHAR_CLASSES \
+                        "alnum\0alpha\0blank\0cntrl\0digit\0graph\0" \
+                        "lower\0print\0punct\0space\0upper\0xdigit\0"
+
+enum {
+        CCLASS_ALNUM, CCLASS_ALPHA, CCLASS_BLANK, CCLASS_CNTRL,
+        CCLASS_DIGIT, CCLASS_GRAPH, CCLASS_LOWER, CCLASS_PRINT,
+        CCLASS_PUNCT, CCLASS_SPACE, CCLASS_UPPER, CCLASS_XDIGIT
+};
+
+extern int match_class(const char *name);