/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

// Definitions to use in TSCII en/decoders.

#define TSC_KA    0xb8
#define TSC_NA    0xc9
// akara varisai
#define IS_TSC_CONSONANT1(c) ((c) >= TSC_KA && (c) <= TSC_NA) 
// grantha akara mey varisai
#define TSC_JA    0x83
#define TSC_HA    0x86
#define IS_TSC_CONSONANT2(c) ((c) >= TSC_JA && (c) <= TSC_HA) 

// union of two above
#define IS_TSC_CONSONANT(c)  (IS_TSC_CONSONANT1(c) || IS_TSC_CONSONANT2(c))

#define TSC_SA    0x85  
#define TSC_TA    0xbc  
#define TSC_RA    0xc3
#define TSC_KSSA  0x87 // Consonant Conjunct K.SSA : live 

#define TSC_KA_DEAD   0xec  // KA with virama/pulli
#define TSC_SA_DEAD   0x8a  // SA with virama/pulli
#define TSC_KSSA_DEAD 0x8c  // Consonant Conjunct K.SSA : dead

#define TSC_TI_LIGA   0xca  // Ligature of consonant TA and Vowel sign I
#define TSC_SRII_LIGA 0x82  // Ligature of SA + RA + II

// Two part vowel signs
#define UNI_VOWELSIGN_E 0x0BC6
#define TSC_VOWELSIGN_E 0xa6
#define TSC_LEFT_VOWELSIGN(u)      ((u) - UNI_VOWELSIGN_E + TSC_VOWELSIGN_E)
#define IS_UNI_LEFT_VOWELSIGN(u)   ((u) >= UNI_VOWELSIGN_E && (u) <= 0x0BC8)  
#define IS_UNI_2PARTS_VOWELSIGN(u) ((u) >= 0x0BCA && (u) <= 0x0BCC)  

#define UNI_TAMIL_START 0x0B80
#define IS_UNI_TAMIL(u) (UNI_TAMIL_START <= (u) && (u) < UNI_TAMIL_START + 0x80)

#define UNI_VIRAMA         0x0BCD
#define UNI_VOWELSIGN_I    0x0BBF
#define UNI_VOWELSIGN_II   0x0BC0
#define UNI_VOWELSIGN_U    0x0BC1
#define UNI_VOWELSIGN_UU   0x0BC2
#define UNI_SSA            0x0BB7
#define UNI_RA             0x0BB0

// Punctuation marks 
#define UNI_LSQ 0x2018
#define UNI_RSQ 0x2019
#define UNI_LDQ 0x201C
#define UNI_RDQ 0x201D
#define UNI_LEFT_SINGLE_QUOTE UNI_LSQ
#define UNI_RIGHT_SINGLE_QUOTE UNI_RSQ
#define UNI_LEFT_DOUBLE_QUOTE UNI_LDQ
#define UNI_RIGHT_DOUBLE_QUOTE UNI_RDQ
#define IS_UNI_SINGLE_QUOTE(u) (UNI_LSQ <= (u) && (u) <= UNI_RSQ)
#define IS_UNI_DOUBLE_QUOTE(u) (UNI_LDQ <= (u) && (u) <= UNI_RDQ)

#define TSC_LEFT_SINGLE_QUOTE 0x91
#define TSC_LEFT_DOUBLE_QUOTE 0x93

#define TSC_LEFT_VOWEL_PART(u) (((u) % 2) ? 0xa7 : 0xa6)
#define TSC_RIGHT_VOWEL_PART(u) (((u) != 0x0BCC) ? 0xa1 : 0xaa)