#776: Allow repeat-expr and repeat-until keys without a repeat key

kaitai-io/kaitai_struct#776

formats/repeat_repeat-expr_only.ksy

@@ -0,0 +1,6 @@
+meta:
+  id: repeat_expr_only
+seq:
+  - id: foo
+    type: u1
+    repeat-expr: 42

formats/repeat_repeat-until_only.ksy

@@ -0,0 +1,6 @@
+meta:
+  id: repeat_until_only
+seq:
+  - id: foo
+    type: u1
+    repeat-until: _ != 0

formats_err/repeat_bad_repeat-expr-and-until.ksy

@@ -0,0 +1,11 @@
+# repeat_bad_repeat-expr-and-until.ksy: /seq/0/repeat:
+# 	error: expected eos / expr / until, got 'bad'
+#
+meta:
+  id: repeat_bad_repeat_expr_and_until
+seq:
+  - id: foo
+    type: u1
+    repeat: bad
+    repeat-expr: 42
+    repeat-until: 'true'

formats_err/repeat_bad_repeat-expr.ksy

@@ -0,0 +1,10 @@
+# repeat_bad_repeat-expr.ksy: /seq/0/repeat:
+# 	error: expected eos / expr / until, got 'bad'
+#
+meta:
+  id: repeat_bad_repeat_expr
+seq:
+  - id: foo
+    type: u1
+    repeat: bad
+    repeat-expr: 42

formats_err/repeat_bad_repeat-until.ksy

@@ -0,0 +1,10 @@
+# repeat_bad_repeat-until.ksy: /seq/0/repeat:
+# 	error: expected eos / expr / until, got 'bad'
+#
+meta:
+  id: repeat_bad_repeat_until
+seq:
+  - id: foo
+    type: u1
+    repeat: bad
+    repeat-until: 'true'

formats_err/repeat_eos_repeat-expr-and-until.ksy

@@ -0,0 +1,11 @@
+# repeat_eos_repeat-expr-and-until.ksy: /seq/0/repeat:
+# 	error: either `repeat: eos`, or `repeat-expr`, or `repeat-until` must be specified
+#
+meta:
+  id: repeat_eos_repeat_expr_and_until
+seq:
+  - id: foo
+    type: u1
+    repeat: eos
+    repeat-expr: 42
+    repeat-until: 'true'

formats_err/repeat_eos_repeat-expr.ksy

@@ -0,0 +1,10 @@
+# repeat_eos_repeat-expr.ksy: /seq/0/repeat:
+# 	error: `repeat-expr` requires either a `repeat: expr` or absence of a `repeat` key
+#
+meta:
+  id: repeat_eos_repeat_expr
+seq:
+  - id: foo
+    type: u1
+    repeat: eos
+    repeat-expr: 42

formats_err/repeat_eos_repeat-until.ksy

@@ -0,0 +1,10 @@
+# repeat_eos_repeat-until.ksy: /seq/0/repeat:
+# 	error: `repeat-until` requires either a `repeat: until` or absence of a `repeat` key
+#
+meta:
+  id: repeat_eos_repeat_until
+seq:
+  - id: foo
+    type: u1
+    repeat: eos
+    repeat-until: 'true'

formats_err/repeat_expr.ksy

@@ -0,0 +1,9 @@
+# repeat_expr.ksy: /seq/0/repeat:
+# 	error: `repeat: expr` requires a `repeat-expr` key
+#
+meta:
+  id: repeat_expr
+seq:
+  - id: foo
+    type: u1
+    repeat: expr

formats_err/repeat_expr_repeat-expr-and-until.ksy

@@ -0,0 +1,11 @@
+# repeat_expr_repeat-expr-and-until.ksy: /seq/0/repeat:
+# 	error: either `repeat: eos`, or `repeat-expr`, or `repeat-until` must be specified
+#
+meta:
+  id: repeat_expr_repeat_expr_and_until
+seq:
+  - id: foo
+    type: u1
+    repeat: expr
+    repeat-expr: 42
+    repeat-until: 'true'

formats_err/repeat_expr_repeat-until.ksy

@@ -0,0 +1,10 @@
+# repeat_expr_repeat-until.ksy: /seq/0/repeat:
+# 	error: `repeat-until` requires either a `repeat: until` or absence of a `repeat` key
+#
+meta:
+  id: repeat_expr_repeat_until
+seq:
+  - id: foo
+    type: u1
+    repeat: expr
+    repeat-until: 'true'

formats_err/repeat_until.ksy

@@ -0,0 +1,9 @@
+# repeat_until.ksy: /seq/0/repeat:
+# 	error: `repeat: until` requires a `repeat-until` key
+#
+meta:
+  id: repeat_until
+seq:
+  - id: foo
+    type: u1
+    repeat: until

formats_err/repeat_until_repeat-expr-and-until.ksy

@@ -0,0 +1,11 @@
+# repeat_until_repeat-expr-and-until.ksy: /seq/0/repeat:
+# 	error: either `repeat: eos`, or `repeat-expr`, or `repeat-until` must be specified
+#
+meta:
+  id: repeat_until_repeat_expr_and_until
+seq:
+  - id: foo
+    type: u1
+    repeat: until
+    repeat-expr: 42
+    repeat-until: 'true'

formats_err/repeat_until_repeat-expr.ksy

@@ -0,0 +1,10 @@
+# repeat_until_repeat-expr.ksy: /seq/0/repeat:
+# 	error: `repeat-expr` requires either a `repeat: expr` or absence of a `repeat` key
+#
+meta:
+  id: repeat_until_repeat_expr
+seq:
+  - id: foo
+    type: u1
+    repeat: until
+    repeat-expr: 42