shithub: pdffs

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add array helpers

--- a/array.c

+++ b/array.c

@@ -51,3 +51,25 @@

 	pdfobjfree(o);

 	return nil;

 }

+

+int

+arraylen(Object *o)

+{

+	if(o == nil || o == &null)

+		return 0;

+	return (o->type == Oarray) ? o->array.ne : 1;

+}

+

+Object *

+arrayget(Object *o, int i)

+{

+	if(arraylen(o) <= i)

+		sysfatal("array: indexing out of range");

+	return o->type == Oarray ? o->array.e[i] : o;

+}

+

+int

+arrayint(Object *o, int i)

+{

+	return (o = arrayget(o, i))->type == Onum ? o->num : 0;

+}

--- a/pdf.h

+++ b/pdf.h

@@ -150,6 +150,10 @@

  */

 int isdelim(int c);

+int arraylen(Object *o);

+Object *arrayget(Object *o, int i);

+int arrayint(Object *o, int i);

+

 Object *dictget(Object *o, char *name);

 vlong dictint(Object *o, char *name);

 char *dictstring(Object *o, char *name);