managed to change h2-scheme to a generic package

h2/lib/ascii.txt

@@ -0,0 +1,128 @@
+NUL
+SOH
+STX
+ETX
+EOT
+ENQ
+ACK
+BEL
+BS
+HT
+LF
+VT
+FF
+CR
+SO
+SI
+DLE
+DC1
+DC2
+DC3
+DC4
+NAK
+SYN
+ETB
+CAN
+EM
+SUB
+ESC
+FS
+GS
+RS
+US
+Space
+Exclamation
+Quotation
+Number_Sign
+Dollar_Sign
+Percent_Sign
+Ampersand
+Apostrophe
+Left_Parenthesis
+Right_Parenthesis
+Asterisk
+Plus_Sign
+Comma
+Minus_Sign
+Period
+Slash
+Zero
+One
+Two
+Three
+Four
+Five
+Six
+Seven
+Eight
+Nine
+Colon
+Semicolon
+Less_Than_Sign
+Equals_Sign
+Greater_Than_Sign
+Question
+Commercial_At
+UC_A
+UC_B
+UC_C
+UC_D
+UC_E
+UC_F
+UC_G
+UC_H
+UC_I
+UC_J
+UC_K
+UC_L
+UC_M
+UC_N
+UC_O
+UC_P
+UC_Q
+UC_R
+UC_S
+UC_T
+UC_U
+UC_V
+UC_W
+UC_X
+UC_Y
+UC_Z
+Left_Square_Bracket
+Backslash
+Right_Square_Bracket
+Circumflex
+Low_Line
+Grave
+LC_A
+LC_B
+LC_C
+LC_D
+LC_E
+LC_F
+LC_G
+LC_H
+LC_I
+LC_J
+LC_K
+LC_L
+LC_M
+LC_N
+LC_O
+LC_P
+LC_Q
+LC_R
+LC_S
+LC_T
+LC_U
+LC_V
+LC_W
+LC_X
+LC_Y
+LC_Z
+Left_Curly_Bracket
+Vertical_Line
+Right_Curly_Bracket
+Tilde
+DEL