From 7485bde78f3422e4f9415ff452fcd858ee544cd0 Mon Sep 17 00:00:00 2001
From: David Robillard <d@drobilla.net>
Date: Thu, 11 Mar 2021 13:40:30 -0500
Subject: Fix pattern restrictions in xsd.ttl

This fixes the patterns to properly match the spec (several were too strict or
otherwise impresive), and also reduces the regex syntax used to a basic and
nearly universal subset (without the use of counted replication) that should be
supported and handled consistently by even a very basic implementation.
---
 schemas.lv2/xsd.ttl | 26 ++++++++++++++------------
 1 file changed, 14 insertions(+), 12 deletions(-)

(limited to 'schemas.lv2')

diff --git a/schemas.lv2/xsd.ttl b/schemas.lv2/xsd.ttl
index d22687b..01be2e4 100644
--- a/schemas.lv2/xsd.ttl
+++ b/schemas.lv2/xsd.ttl
@@ -61,7 +61,7 @@ xsd:base64Binary
 	owl:onDatatype xsd:anySimpleType ;
 	owl:withRestrictions (
 		[
-			xsd:pattern "(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=)?"
+			xsd:pattern "(([A-Za-z0-9+/] *[A-Za-z0-9+/] *[A-Za-z0-9+/] *[A-Za-z0-9+/] *)*(([A-Za-z0-9+/] *[A-Za-z0-9+/] *[A-Za-z0-9+/] *[A-Za-z0-9+/])|([A-Za-z0-9+/] *[A-Za-z0-9+/] *[AEIMQUYcgkosw048] *=)|([A-Za-z0-9+/] *[AQgw] *= *=)))?"
 		] [
 			xsd:whiteSpace "collapse"
 		]
@@ -73,7 +73,7 @@ xsd:boolean
 	owl:onDatatype xsd:anySimpleType ;
 	owl:withRestrictions (
 		[
-			xsd:pattern "(true|false)"
+			xsd:pattern "(true|false|0|1)"
 		] [
 			xsd:whiteSpace "collapse"
 		]
@@ -97,7 +97,7 @@ xsd:date
 	owl:onDatatype xsd:anySimpleType ;
 	owl:withRestrictions (
 		[
-			xsd:pattern "-?([1-9][0-9]{3,}|0[0-9]{3})-(0[1-9]|1[0-2])-(0[1-9]|[12][0-9]|3[01])(Z|(\\+|-)((0[0-9]|1[0-3]):[0-5][0-9]|14:00))?"
+			xsd:pattern "-?[0-9][0-9][0-9][0-9][0-9]*-(0[1-9]|1[0-2])-(0[1-9]|[12][0-9]|3[01])(Z|[-+][0-2][0-9]:[0-5][0-9])?"
 		] [
 			xsd:whiteSpace "collapse"
 		]
@@ -109,7 +109,7 @@ xsd:dateTime
 	owl:onDatatype xsd:anySimpleType ;
 	owl:withRestrictions (
 		[
-			xsd:pattern "-?([1-9][0-9]{3,}|0[0-9]{3})-(0[1-9]|1[0-2])-(0[1-9]|[12][0-9]|3[01])T(([01][0-9]|2[0-3]):[0-5][0-9]:[0-5][0-9](\\.[0-9]+)?|(24:00:00(\\.0+)?))(Z|(\\+|-)((0[0-9]|1[0-3]):[0-5][0-9]|14:00))?"
+			xsd:pattern "-?[0-9][0-9][0-9][0-9][0-9]*-(0[1-9]|1[0-2])-(0[1-9]|[12][0-9]|3[01])T(([0-1][0-9])|(2[0-4])):[0-5][0-9]:[0-5][0-9](.[0-9]+)?(Z|[-+][0-2][0-9]:[0-5][0-9])?"
 		] [
 			xsd:whiteSpace "collapse"
 		]
@@ -122,7 +122,7 @@ xsd:decimal
 	owl:onDatatype xsd:anySimpleType ;
 	owl:withRestrictions (
 		[
-			xsd:pattern "[+-]?[0-9]*\\.?[0-9]*"
+			xsd:pattern "-?INF|NaN|[+-]?(([0-9]+[.]?[0-9]*)|([0-9]*[.]?[0-9]+))([eE][-+]?[0-9]+)?"
 		] [
 			xsd:whiteSpace "collapse"
 		]
@@ -135,7 +135,7 @@ xsd:double
 	owl:onDatatype xsd:anySimpleType ;
 	owl:withRestrictions (
 		[
-			xsd:pattern "[+-]?[0-9]*\\.?[0-9]*([eE][-+]?[0-9]+)?"
+			xsd:pattern "-?INF|NaN|[+-]?(([0-9]+[.]?[0-9]*)|([0-9]*[.]?[0-9]+))([eE][-+]?[0-9]+)?"
 		] [
 			xsd:whiteSpace "collapse"
 		]
@@ -147,6 +147,8 @@ xsd:duration
 	owl:onDatatype xsd:anySimpleType ;
 	owl:withRestrictions (
 		[
+			xsd:pattern "-?P([0-9]+Y)?([0-9]+M)?([0-9]+D)?(T([0-9]+H)?([0-9]+M)?([0-9]+(\\.[0-9]+)?S)?)?"
+		] [
 			xsd:whiteSpace "collapse"
 		]
 	) .
@@ -158,7 +160,7 @@ xsd:float
 	owl:onDatatype xsd:anySimpleType ;
 	owl:withRestrictions (
 		[
-			xsd:pattern "[+-]?[0-9]*\\.?[0-9]*([eE][-+]?[0-9]+)?"
+			xsd:pattern "-?INF|NaN|[+-]?(([0-9]+[.]?[0-9]*)|([0-9]*[.]?[0-9]+))([eE][-+]?[0-9]+)?"
 		] [
 			xsd:whiteSpace "collapse"
 		]
@@ -223,7 +225,7 @@ xsd:hexBinary
 	owl:onDatatype xsd:anySimpleType ;
 	owl:withRestrictions (
 		[
-			xsd:pattern "[0-9A-F]*"
+			xsd:pattern "([0-9A-Fa-f][0-9A-Fa-f])*"
 		] [
 			xsd:whiteSpace "collapse"
 		]
@@ -259,7 +261,7 @@ xsd:language
 	owl:onDatatype xsd:token ;
 	owl:withRestrictions (
 		[
-			xsd:pattern "[a-zA-Z]{1,8}(-[a-zA-Z0-9]{1,8})*"
+			xsd:pattern "[a-zA-Z][a-zA-Z]?[a-zA-Z]?[a-zA-Z]?[a-zA-Z]?[a-zA-Z]?[a-zA-Z]?[a-zA-Z]?(-[a-zA-Z0-9][a-zA-Z0-9]?[a-zA-Z0-9]?[a-zA-Z0-9]?[a-zA-Z0-9]?[a-zA-Z0-9]?[a-zA-Z0-9]?[a-zA-Z0-9]?)*"
 		]
 	) .
 
@@ -315,7 +317,7 @@ xsd:nonNegativeInteger
 	owl:onDatatype xsd:integer ;
 	owl:withRestrictions (
 		[
-			xsd:pattern "[0-9]*"
+			xsd:pattern "[+]?[0-9]+"
 		] [
 			xsd:minInclusive 0
 		]
@@ -371,7 +373,7 @@ xsd:positiveInteger
 	owl:onDatatype xsd:nonNegativeInteger ;
 	owl:withRestrictions (
 		[
-			xsd:pattern "[+]?[0-9]+"
+			xsd:pattern "[+]?[0-9]*[1-9]+[0-9]*"
 		] [
 			xsd:minInclusive 1
 		]
@@ -406,7 +408,7 @@ xsd:time
 	owl:onDatatype xsd:anySimpleType ;
 	owl:withRestrictions (
 		[
-			xsd:pattern "[1-2][0-9]:[0-5][0-9]:[0-5][0-9].[0-9][0-9][0-9]"
+			xsd:pattern "(([0-1][0-9])|(2[0-4])):[0-5][0-9]:[0-5][0-9](.[0-9]+)?(Z|[-+][0-2][0-9]:[0-5][0-9])?"
 		] [
 			xsd:whiteSpace "collapse"
 		]
-- 
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