diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/packrat-tokens.adb | 25 | ||||
| -rw-r--r-- | src/packrat.ads | 6 |
2 files changed, 30 insertions, 1 deletions
diff --git a/src/packrat-tokens.adb b/src/packrat-tokens.adb index 240ecee..382b8d8 100644 --- a/src/packrat-tokens.adb +++ b/src/packrat-tokens.adb @@ -74,6 +74,31 @@ package body Tokens is end Create; + function "=" + (Left, Right : in Token) + return Boolean + is + Left_Valsize, Right_Valsize : Natural; + begin + if Left.Token_Value = null then + Left_Valsize := 0; + else + Left_Valsize := Left.Token_Value.all'Length; + end if; + if Right.Token_Value = null then + Right_Valsize := 0; + else + Right_Valsize := Right.Token_Value.all'Length; + end if; + + return Left.Identifier = Right.Identifier and + Left.Start_At = Right.Start_At and + Left.Finish_At = Right.Finish_At and + Left_Valsize = Right_Valsize and + (Left_Valsize = 0 or else Left.Token_Value.all = Right.Token_Value.all); + end "="; + + diff --git a/src/packrat.ads b/src/packrat.ads index 41035fc..0ee8463 100644 --- a/src/packrat.ads +++ b/src/packrat.ads @@ -9,7 +9,7 @@ with package Packrat is - type Result_Status is (Failure, Partial, Success); + type Result_Status is (Failure, Needs_More, Optional_More, Success); Parser_Error : exception; @@ -117,6 +117,10 @@ package Packrat is Value : in Element_Array) return Token; + function "=" + (Left, Right : in Token) + return Boolean; + -- Note: The Start and Finish indices indicate where the token was found -- in whatever array it was lexed from. The Value does *not* have |