Struct Tables 

pub struct Tables(TableSource);

Individual font table access.

Tuple Fields

0: TableSource

Implementations

impl Tables

pub fn ankr_data(&self) -> Option<&[u8]>

Anchor point table data.

See the ankr specification.

pub fn avar_data(&self) -> Option<&[u8]>

Axis variation table data.

See the avar specification.

pub fn base_data(&self) -> Option<&[u8]>

Baseline table data.

See the BASE specification.

pub fn cff_data(&self) -> Option<&[u8]>

Compact font format table data.

See the CFF specification.

pub fn cff2_data(&self) -> Option<&[u8]>

Compact font format 2.0 table data.

See the CFF2 specification.

pub fn cbdt_data(&self) -> Option<&[u8]>

Color bitmap data table data.

See the CBDT specification.

pub fn cblc_data(&self) -> Option<&[u8]>

Color bitmap location table data.

See the CBLC specification.

pub fn colr_data(&self) -> Option<&[u8]>

Color table data.

See the COLR specification.

pub fn cpal_data(&self) -> Option<&[u8]>

Color palette table data.

See the CPAL specification.

pub fn cmap_data(&self) -> Option<&[u8]>

Character to glyph mapping table data.

See the cmap specification.

pub fn cvar_data(&self) -> Option<&[u8]>

CVT variations table data.

See the cvar specification.

pub fn cvt_data(&self) -> Option<&[u8]>

Control value table data.

See the cvt specification.

pub fn dmap_data(&self) -> Option<&[u8]>

Delta character mapping table data.

See the DMAP specification.

pub fn dsig_data(&self) -> Option<&[u8]>

Digital signature table data.

See the DSIG specification.

pub fn ebdt_data(&self) -> Option<&[u8]>

Embedded bitmap data table data.

See the EBDT specification.

pub fn eblc_data(&self) -> Option<&[u8]>

Embedded bitmap location data table data.

See the EBLC specification.

pub fn feat_data(&self) -> Option<&[u8]>

Font feature table data.

See the feat specification.

pub fn fpgm_data(&self) -> Option<&[u8]>

Font program table data.

See the fpgm specification.

pub fn fvar_data(&self) -> Option<&[u8]>

Font variations table data.

See the fvar specification.

pub fn gasp_data(&self) -> Option<&[u8]>

Grid-fitting and scan-conversion procedure table data.

See the gasp specification.

pub fn gdef_data(&self) -> Option<&[u8]>

Glyph definition table data.

See the GDEF specification.

pub fn glyf_data(&self) -> Option<&[u8]>

TrueType glyph data table data.

See the glyf specification.

pub fn glyf_extended_data(&self) -> Option<&[u8]>

Extended glyph data table data.

See ISO/IEC 14496-22:2026, 5.2.8.

pub fn gpos_data(&self) -> Option<&[u8]>

Glyph positioning table data.

See the GPOS specification.

pub fn gsub_data(&self) -> Option<&[u8]>

Glyph substitution table data.

See the GSUB specification.

pub fn gvar_data(&self) -> Option<&[u8]>

Glyph variation table data.

See the gvar specification.

pub fn gvar_extended_data(&self) -> Option<&[u8]>

Extended glyph variation table data.

See ISO/IEC 14496-22:2026, 7.3.9.

pub fn hdmx_data(&self) -> Option<&[u8]>

Horizontal device metrics data.

See the hdmx specification.

pub fn head_data(&self) -> Option<&[u8]>

Font header table data.

See the head specification.

pub fn hhea_data(&self) -> Option<&[u8]>

Horizontal header table data.

See the hhea specification.

pub fn hhea_extended_data(&self) -> Option<&[u8]>

Extended horizontal header table data.

See ISO/IEC 14496-22:2026, 5.1.10.

pub fn hmtx_data(&self) -> Option<&[u8]>

Horizontal metrics table data.

See the hmtx specification.

pub fn hmtx_extended_data(&self) -> Option<&[u8]>

Extended horizontal metrics table data.

See ISO/IEC 14496-22:2026, 5.1.11.

pub fn hvar_data(&self) -> Option<&[u8]>

Horizontal metrics variation table data.

See the HVAR specification.

pub fn ift_data(&self) -> Option<&[u8]>

Incremental font transfer table data.

See the IFT specification.

pub fn iftx_data(&self) -> Option<&[u8]>

Incremental font transfer table data.

See the IFTX specification.

pub fn jstf_data(&self) -> Option<&[u8]>

Justification table data.

See the JSTF specification.

pub fn kern_data(&self) -> Option<&[u8]>

Kerning table data.

See the kern specification.

pub fn kerx_data(&self) -> Option<&[u8]>

Extended kerning table data.

See the kerx specification.

pub fn loca_data(&self) -> Option<&[u8]>

Index to location table data.

See the loca specification.

pub fn loca_extended_data(&self) -> Option<&[u8]>

Extended index to location table data.

See ISO/IEC 14496-22:2026, 5.2.9.

pub fn ltag_data(&self) -> Option<&[u8]>

Language tag table data.

See the ltag specification.

pub fn math_data(&self) -> Option<&[u8]>

Mathematical typesetting table data.

See the MATH specification.

pub fn maxp_data(&self) -> Option<&[u8]>

Maximum profile table data.

See the maxp specification.

pub fn maxp_extended_data(&self) -> Option<&[u8]>

Extended maximum profile table data.

See ISO/IEC 14496-22:2026, 5.1.12.

pub fn meta_data(&self) -> Option<&[u8]>

Metadata table data.

See the meta specification.

pub fn mort_data(&self) -> Option<&[u8]>

Metamorphosis table (deprecated) data.

See the mort specification.

pub fn morx_data(&self) -> Option<&[u8]>

Extended metamorphosis table data.

See the morx specification.

pub fn mvar_data(&self) -> Option<&[u8]>

Metrics variation table data.

See the MVAR specification.

pub fn name_data(&self) -> Option<&[u8]>

Naming table data.

See the name specification.

pub fn os2_data(&self) -> Option<&[u8]>

OS/2 and Windows-specific metrics table data.

See the OS/2 specification.

pub fn post_data(&self) -> Option<&[u8]>

PostScript information table data.

See the post specification.

pub fn prep_data(&self) -> Option<&[u8]>

Control value program table data.

See the prep specification.

pub fn sbix_data(&self) -> Option<&[u8]>

Standard bitmap graphics table data.

See the sbix specification.

pub fn stat_data(&self) -> Option<&[u8]>

Style attributes table data.

See the STAT specification.

pub fn svg_data(&self) -> Option<&[u8]>

Scalable vector graphics table data.

See the SVG specification.

pub fn trak_data(&self) -> Option<&[u8]>

Tracking table data.

See the trak specification.

pub fn varc_data(&self) -> Option<&[u8]>

Variable composite/component table data.

See the VARC specification.

pub fn vhea_data(&self) -> Option<&[u8]>

Vertical header table data.

See the vhea specification.

pub fn vhea_extended_data(&self) -> Option<&[u8]>

Extended vertical header table data.

See ISO/IEC 14496-22:2026, 5.6.13.

pub fn vmtx_data(&self) -> Option<&[u8]>

Vertical metrics table data.

See the vmtx specification.

pub fn vmtx_extended_data(&self) -> Option<&[u8]>

Extended vertical metrics table data.

See ISO/IEC 14496-22:2026, 5.6.14.

pub fn vorg_data(&self) -> Option<&[u8]>

Vertical origin table data.

See the VORG specification.

pub fn vvar_data(&self) -> Option<&[u8]>

Vertical metrics variation table data.

See the VVAR specification.

impl Tables

pub fn new(source: impl Into<Source>, index: u32) -> Option<Tables>

Creates a new set of font tables for the given source.

The index selects a font in a collection. Returns None if a blob holds no SFNT font at that index.

Trait Implementations

impl<'a> TableProvider<'a> for &'a Tables

fn loca(&self, is_long: impl Into<Option<bool>>) -> Result<Loca<'a>, ReadError>

is_long can be optionally provided, if known, otherwise we look it up in head.

fn cvt(&self) -> Result<&'a [BigEndian<i16>], ReadError>

Returns the array of entries for the control value table which is used for TrueType hinting.

fn data_for_tag(&self, _tag: Tag) -> Option<FontData<'a>>

fn head(&self) -> Result<Head<'a>, ReadError>

fn name(&self) -> Result<Name<'a>, ReadError>

fn hhea(&self) -> Result<Hhea<'a>, ReadError>

Reads the hhea table only. A font may carry its metrics header in HHEA instead; selected_hhea chooses between them.

fn vhea(&self) -> Result<Vhea<'a>, ReadError>

Reads the vhea table only. A font may carry its vertical metrics header in VHEA instead; selected_vhea chooses between them.

fn hhea_extended(&self) -> Result<HheaExtended<'a>, ReadError>

Reads the uppercase HHEA table.

fn vhea_extended(&self) -> Result<VheaExtended<'a>, ReadError>

Reads the uppercase VHEA table.

fn hmtx(&self) -> Result<Hmtx<'a>, ReadError>

fn hmtx_extended(&self) -> Result<HmtxExtended<'a>, ReadError>

Reads HMTX using the long-metric count from HHEA.

fn hdmx(&self) -> Result<Hdmx<'a>, ReadError>

fn vmtx(&self) -> Result<Vmtx<'a>, ReadError>

fn vmtx_extended(&self) -> Result<VmtxExtended<'a>, ReadError>

Reads VMTX using the long-metric count from VHEA.

fn vorg(&self) -> Result<Vorg<'a>, ReadError>

fn fvar(&self) -> Result<Fvar<'a>, ReadError>

fn avar(&self) -> Result<Avar<'a>, ReadError>

fn hvar(&self) -> Result<Hvar<'a>, ReadError>

fn vvar(&self) -> Result<Vvar<'a>, ReadError>

fn mvar(&self) -> Result<Mvar<'a>, ReadError>

fn maxp(&self) -> Result<Maxp<'a>, ReadError>

Reads the maxp table only. A font with more than 65535 glyphs carries its glyph count in MAXP; selected_maxp chooses between them.

fn maxp_extended(&self) -> Result<MaxpExtended<'a>, ReadError>

Reads the uppercase MAXP table with a 24-bit glyph count.

fn os2(&self) -> Result<Os2<'a>, ReadError>

fn post(&self) -> Result<Post<'a>, ReadError>

fn gasp(&self) -> Result<Gasp<'a>, ReadError>

fn glyf(&self) -> Result<Glyf<'a>, ReadError>

Reads the glyf table only. A font may carry its outlines in GLYF and LOCA instead; selected_glyf_loca chooses between the pairs.

fn glyf_extended(&self) -> Result<Glyf<'a>, ReadError>

Reads GLYF using the shared glyph data representation.

fn loca_extended( &self, is_long: impl Into<Option<bool>>, ) -> Result<Loca<'a>, ReadError>

Reads LOCA; its format is shared with loca and specified in head.

fn gvar(&self) -> Result<Gvar<'a>, ReadError>

Reads the gvar table only. A font may carry its glyph variations in GVAR instead; selected_gvar chooses between them.

fn gvar_extended(&self) -> Result<GvarExtended<'a>, ReadError>

Reads the GVAR table only (ISO/IEC 14496-22:2026).

fn fpgm(&self) -> Result<&'a [u8], ReadError>

Returns the font program, which contains the TrueType instructions run once per font.

fn prep(&self) -> Result<&'a [u8], ReadError>

Returns the control value program, which contains the TrueType instructions run once per size.

fn cvar(&self) -> Result<Cvar<'a>, ReadError>

fn cff(&self) -> Result<Cff<'a>, ReadError>

fn cff2(&self) -> Result<Cff2<'a>, ReadError>

fn cmap(&self) -> Result<Cmap<'a>, ReadError>

fn dmap(&self) -> Result<Dmap<'a>, ReadError>

Reads the DMAP table (ISO/IEC 14496-22:2026).

fn gdef(&self) -> Result<Gdef<'a>, ReadError>

fn gpos(&self) -> Result<Gpos<'a>, ReadError>

fn gsub(&self) -> Result<Gsub<'a>, ReadError>

fn feat(&self) -> Result<Feat<'a>, ReadError>

fn ltag(&self) -> Result<Ltag<'a>, ReadError>

fn ankr(&self) -> Result<Ankr<'a>, ReadError>

fn trak(&self) -> Result<Trak<'a>, ReadError>

fn morx(&self) -> Result<Morx<'a>, ReadError>

fn mort(&self) -> Result<Mort<'a>, ReadError>

fn kerx(&self) -> Result<Kerx<'a>, ReadError>

fn kern(&self) -> Result<Kern<'a>, ReadError>

fn colr(&self) -> Result<Colr<'a>, ReadError>

fn cpal(&self) -> Result<Cpal<'a>, ReadError>

fn cblc(&self) -> Result<Cblc<'a>, ReadError>

fn cbdt(&self) -> Result<Cbdt<'a>, ReadError>

fn eblc(&self) -> Result<Eblc<'a>, ReadError>

fn ebdt(&self) -> Result<Ebdt<'a>, ReadError>

fn sbix(&self) -> Result<Sbix<'a>, ReadError>

fn stat(&self) -> Result<Stat<'a>, ReadError>

fn svg(&self) -> Result<Svg<'a>, ReadError>

fn varc(&self) -> Result<Varc<'a>, ReadError>

fn meta(&self) -> Result<Meta<'a>, ReadError>

fn base(&self) -> Result<Base<'a>, ReadError>

fn dsig(&self) -> Result<Dsig<'a>, ReadError>

fn math(&self) -> Result<Math<'a>, ReadError>

fn expect_data_for_tag(&self, tag: Tag) -> Result<FontData<'a>, ReadError>

fn expect_table<T>(&self) -> Result<T, ReadError>

where T: TopLevelTable + FontRead<'a, Args = ()>,

fn selected_hhea(&self) -> Result<SelectedHhea<'a>, ReadError>

Selects HHEA before hhea, independently of the outline tables.

fn selected_vhea(&self) -> Result<SelectedVhea<'a>, ReadError>

Selects VHEA before vhea, independently of the outline tables.

fn h_glyph_metric_records(&self) -> Result<GlyphMetricRecords<'a>, ReadError>

Returns horizontal metrics records, selecting HMTX before hmtx independently of the outline tables. No allocation is required.

fn v_glyph_metric_records(&self) -> Result<GlyphMetricRecords<'a>, ReadError>

Returns vertical metrics records, selecting VMTX before vmtx independently of the outline tables. No allocation is required.

fn selected_maxp(&self) -> Result<SelectedMaxp<'a>, ReadError>

Selects MAXP before maxp without narrowing its glyph count.

fn selected_glyf_loca( &self, is_long: impl Into<Option<bool>>, ) -> Result<(Glyf<'a>, Loca<'a>), ReadError>

Selects GLYF/LOCA before glyf/loca, independently of metrics. A present GLYF requires LOCA; it never uses the original loca offsets.

fn selected_gvar(&self) -> Result<SelectedGvar<'a>, ReadError>

Selects GVAR before the original gvar table.