1 files changed, 56 insertions, 0 deletions
diff --git a/parsetag.c b/parsetag.c
new file mode 100644
index 0000000..9cafd95
--- /dev/null
+++ b/parsetag.c
@@ -0,0 +1,56 @@
+#include "myctype.h"
+#include "indep.h"
+#include "Str.h"
+#include "parsetag.h"
+
+char *
+tag_get_value(struct parsed_tagarg *t, char *arg)
+{
+    for (; t; t = t->next) {
+	if (!strcasecmp(t->arg, arg))
+	    return t->value;
+    }
+    return NULL;
+}
+
+int
+tag_exists(struct parsed_tagarg *t, char *arg)
+{
+    for (; t; t = t->next) {
+	if (!strcasecmp(t->arg, arg))
+	    return 1;
+    }
+    return 0;
+}
+
+struct parsed_tagarg *
+cgistr2tagarg(char *cgistr)
+{
+    Str tag;
+    Str value;
+    struct parsed_tagarg *t0, *t;
+
+    t = t0 = NULL;
+    do {
+	t = New(struct parsed_tagarg);
+	t->next = t0;
+	t0 = t;
+	tag = Strnew();
+	while (*cgistr && *cgistr != '=' && *cgistr != '&')
+	    Strcat_char(tag, *cgistr++);
+	t->arg = form_unquote(tag)->ptr;
+	t->value = NULL;
+	if (*cgistr == '\0')
+	    return t;
+	else if (*cgistr == '=') {
+	    cgistr++;
+	    value = Strnew();
+	    while (*cgistr && *cgistr != '&')
+		Strcat_char(value, *cgistr++);
+	    t->value = form_unquote(value)->ptr;
+	}
+	else if (*cgistr == '&')
+	    cgistr++;
+    } while (*cgistr);
+    return t;
+}