From 11f3f26e877210b88f1cadfe2c26d67b4530039c Mon Sep 17 00:00:00 2001
From: Jed Barber <jjbarber@y7mail.com>
Date: Wed, 9 Jan 2019 14:43:25 +1100
Subject: Packrat.Errors functionality complete and tested

---
 src/packrat-errors-parts.adb | 95 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 95 insertions(+)
 create mode 100644 src/packrat-errors-parts.adb

(limited to 'src/packrat-errors-parts.adb')

diff --git a/src/packrat-errors-parts.adb b/src/packrat-errors-parts.adb
new file mode 100644
index 0000000..5ad3482
--- /dev/null
+++ b/src/packrat-errors-parts.adb
@@ -0,0 +1,95 @@
+
+
+with
+
+    Ada.Strings.Fixed,
+    Ada.Strings.Maps;
+
+use type
+
+    Ada.Strings.Maps.Character_Set;
+
+
+separate (Packrat.Errors)
+package body Parts is
+
+
+    package Str renames Ada.Strings;
+    package Fix renames Ada.Strings.Fixed;
+    package Map renames Ada.Strings.Maps;
+
+
+    ID_Start,  ID_Finish  : Positive := 1;
+    Pos_Start, Pos_Finish : Positive := 1;
+    Error_Count : Natural := Fix.Count (Message, Map.To_Set ('s'));
+
+
+    Letter_Range : Map.Character_Range := ('A', 'Z');
+    Digit_Range  : Map.Character_Range := ('0', '9');
+    ID_Set  : Map.Character_Set := Map.To_Set (Letter_Range) or Map.To_Set ('_');
+    Pos_Set : Map.Character_Set := Map.To_Set (Digit_Range);
+
+
+    function Length
+        return Natural is
+    begin
+        return Error_Count;
+    end Length;
+
+
+    procedure Reset_Position is
+    begin
+        ID_Start := 1;
+        ID_Finish := 1;
+        Pos_Start := 1;
+        Pos_Finish := 1;
+    end Reset_Position;
+
+
+    procedure Set_Position
+           (To : in Positive) is
+    begin
+        ID_Start := To;
+        ID_Finish := To;
+        Pos_Start := To;
+        Pos_Finish := To;
+    end Set_Position;
+
+
+    procedure Next_ID_Token
+           (Start  : out Positive;
+            Finish : out Natural) is
+    begin
+        Fix.Find_Token (Message, ID_Set, Pos_Finish, Str.Inside, ID_Start, ID_Finish);
+        Start := ID_Start;
+        Finish := ID_Finish;
+        Pos_Finish := ID_Finish;
+    end Next_ID_Token;
+
+
+    procedure Next_Pos_Token
+           (Start  : out Positive;
+            Finish : out Natural) is
+    begin
+        Fix.Find_Token (Message, Pos_Set, ID_Finish, Str.Inside, Pos_Start, Pos_Finish);
+        Start := Pos_Start;
+        Finish := Pos_Finish;
+        ID_Finish := Pos_Finish;
+    end Next_Pos_Token;
+
+
+    procedure Next_Full_Token
+           (Start  : out Positive;
+            Finish : out Natural)
+    is
+        Dummy : Natural;
+    begin
+        Next_ID_Token (Start, Dummy);
+        Next_Pos_Token (Dummy, Finish);
+        Start := Start - 1;
+    end Next_Full_Token;
+
+
+end Parts;
+
+
-- 
cgit