Numbers must be separated from field names

Another technically backwards-incompatible change, but it's important to
avoid weird edge cases in lexing.

1 files changed, 8 insertions, 0 deletions

diff --git a/asspb.go b/asspb.go
index c649edd..33b3446 100644
--- a/asspb.go
+++ b/asspb.go
@@ -31,6 +31,14 @@
 // Leading zeros are not permitted in decimal numbers, due to potential
 // confusion with octal (which is not supported).
 //
+// As a lexical matter, numbers must be separated from subsequent field names by
+// intervening whitespace or comments:
+//
+//	# invalid
+//	field1:10field2:20
+//	# ok
+//	field1:10 field2:20
+//
 // # Strings
 //
 // Strings are written with " or ' and any sequence of intermediate bytes (with