1 files changed, 49 insertions, 0 deletions
diff --git a/src/cmd/mk/match.c b/src/cmd/mk/match.c
new file mode 100644
index 00000000..2a96394a
--- /dev/null
+++ b/src/cmd/mk/match.c
@@ -0,0 +1,49 @@
+#include	"mk.h"
+
+int
+match(char *name, char *template, char *stem)
+{
+	Rune r;
+	int n;
+
+	while(*name && *template){
+		n = chartorune(&r, template);
+		if (PERCENT(r))
+			break;
+		while (n--)
+			if(*name++ != *template++)
+				return 0;
+	}
+	if(!PERCENT(*template))
+		return 0;
+	n = strlen(name)-strlen(template+1);
+	if (n < 0)
+		return 0;
+	if (strcmp(template+1, name+n))
+		return 0;
+	strncpy(stem, name, n);
+	stem[n] = 0;
+	if(*template == '&')
+		return !charin(stem, "./");
+	return 1;
+}
+
+void
+subst(char *stem, char *template, char *dest)
+{
+	Rune r;
+	char *s;
+	int n;
+
+	while(*template){
+		n = chartorune(&r, template);
+		if (PERCENT(r)) {
+			template += n;
+			for (s = stem; *s; s++)
+				*dest++ = *s;
+		} else
+			while (n--)
+				*dest++ = *template++;
+	}
+	*dest = 0;
+}