[Indic] Recognizer Register Shifter marks
Fixes another 6% of the Khmer failures.
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@ -52,11 +52,12 @@ VD = 10;
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A = 11;
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NBSP = 12;
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DOTTEDCIRCLE = 13;
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RS = 14;
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c = C | Ra;
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n = N N?;
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z = ZWJ|ZWNJ;
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matra_group = M N? H?;
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matra_group = (M | RS) N? H?;
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syllable_tail = SM? (VD VD?)?;
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place_holder = NBSP | DOTTEDCIRCLE;
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@ -58,7 +58,8 @@ enum indic_category_t {
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OT_VD,
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OT_A,
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OT_NBSP,
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OT_DOTTEDCIRCLE /* Not in the spec, but special in Uniscribe. /Very very/ special! */
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OT_DOTTEDCIRCLE, /* Not in the spec, but special in Uniscribe. /Very very/ special! */
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OT_RS /* Register Shifter, used in Khmer OT spec */
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};
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/* Visual positions in a syllable from left to right. */
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@ -92,7 +93,7 @@ enum indic_syllabic_category_t {
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INDIC_SYLLABIC_CATEGORY_CONSONANT_REPHA = OT_C,
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INDIC_SYLLABIC_CATEGORY_MODIFYING_LETTER = OT_X,
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INDIC_SYLLABIC_CATEGORY_NUKTA = OT_N,
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INDIC_SYLLABIC_CATEGORY_REGISTER_SHIFTER = OT_X,
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INDIC_SYLLABIC_CATEGORY_REGISTER_SHIFTER = OT_RS,
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INDIC_SYLLABIC_CATEGORY_TONE_LETTER = OT_X,
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INDIC_SYLLABIC_CATEGORY_TONE_MARK = OT_X,
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INDIC_SYLLABIC_CATEGORY_VIRAMA = OT_H,
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@ -261,6 +261,8 @@ _hb_ot_shape_complex_setup_masks_indic (hb_ot_map_t *map HB_UNUSED,
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info.indic_position() = consonant_position (info.codepoint);
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if (is_ra (info.codepoint))
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info.indic_category() = OT_Ra;
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} else if (info.indic_category() == OT_RS) {
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info.indic_position() = POS_ABOVE_M;
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} else if (info.indic_category() == OT_SM ||
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info.indic_category() == OT_VD) {
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info.indic_position() = POS_SMVD;
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