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[metrics] Add metrics tags documentation

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Ebrahim Byagowi 2019-08-03 14:19:28 +04:30 committed by GitHub
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commit 5848c890cf
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src/hb-ot-metrics.h
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@ -37,6 +37,34 @@ HB_BEGIN_DECLS
/**
* hb_ot_metrics_tag_t:
* @HB_OT_METRICS_TAG_HORIZONTAL_ASCENDER: horizontal ascender.
* @HB_OT_METRICS_TAG_HORIZONTAL_DESCENDER: horizontal descender.
* @HB_OT_METRICS_TAG_HORIZONTAL_LINE_GAP: horizontal line gap.
* @HB_OT_METRICS_TAG_HORIZONTAL_CLIPPING_ASCENT: horizontal clipping ascent.
* @HB_OT_METRICS_TAG_HORIZONTAL_CLIPPING_DESCENT: horizontal clipping descent.
* @HB_OT_METRICS_TAG_VERTICAL_ASCENDER: vertical ascender.
* @HB_OT_METRICS_TAG_VERTICAL_DESCENDER: vertical descender.
* @HB_OT_METRICS_TAG_VERTICAL_LINE_GAP: vertical line gap.
* @HB_OT_METRICS_TAG_HORIZONTAL_CARET_RISE: horizontal caret rise.
* @HB_OT_METRICS_TAG_HORIZONTAL_CARET_RUN: horizontal caret run.
* @HB_OT_METRICS_TAG_HORIZONTAL_CARET_OFFSET: horizontal caret offset.
* @HB_OT_METRICS_TAG_VERTICAL_CARET_RISE: vertical caret rise.
* @HB_OT_METRICS_TAG_VERTICAL_CARET_RUN: vertical caret run.
* @HB_OT_METRICS_TAG_VERTICAL_CARET_OFFSET: vertical caret offset.
* @HB_OT_METRICS_TAG_X_HEIGHT: x height.
* @HB_OT_METRICS_TAG_CAP_HEIGHT: cap height.
* @HB_OT_METRICS_TAG_SUBSCRIPT_EM_X_SIZE: subscript em x size.
* @HB_OT_METRICS_TAG_SUBSCRIPT_EM_Y_SIZE: subscript em y size.
* @HB_OT_METRICS_TAG_SUBSCRIPT_EM_X_OFFSET: subscript em x offset.
* @HB_OT_METRICS_TAG_SUBSCRIPT_EM_Y_OFFSET: subscript em y offset.
* @HB_OT_METRICS_TAG_SUPERSCRIPT_EM_X_SIZE: superscript em x size.
* @HB_OT_METRICS_TAG_SUPERSCRIPT_EM_Y_SIZE: superscript em y size.
* @HB_OT_METRICS_TAG_SUPERSCRIPT_EM_X_OFFSET: superscript em x offset.
* @HB_OT_METRICS_TAG_SUPERSCRIPT_EM_Y_OFFSET: superscript em y offset.
* @HB_OT_METRICS_TAG_STRIKEOUT_SIZE: strikeout size.
* @HB_OT_METRICS_TAG_STRIKEOUT_OFFSET: strikeout offset.
* @HB_OT_METRICS_TAG_UNDERLINE_SIZE: underline size.
* @HB_OT_METRICS_TAG_UNDERLINE_OFFSET: underline offset.
*
* From https://docs.microsoft.com/en-us/typography/opentype/spec/mvar#value-tags
*