Module harfbuzz
Lua bindings to Harfbuzz.
Info:
- Copyright: 2016
- License: MIT
- Author: Deepak Jois <deepak.jois@gmail.com>
Functions
| version () | Wraps hb_version |
| shape (font, buffer[, options]) | Wraps hb_shape. |
Class Blob
| Blob.new (data) | Wraps hb_blob_create. |
| Blob.new_from_file (filename) | Wraps hb_blob_create_from_file. |
| Blob:get_length () | Wraps hb_blob_get_length. |
| Blob:get_data () | Wraps hb_blob_get_data. |
Class Face
| Face.new_from_blob (blob[, font_index=0]) | Wraps hb_face_create. |
| Face.new (file[, font_index=0]) | Create a new Face from a file. |
| Face:collect_unicodes () | Wraps hb_face_collect_unicodes. |
| Face:get_glyph_count () | Wraps hb_face_get_glyph_count. |
| Face:get_table (tag) | Wraps hb_face_reference_table. |
| Face:get_table_tags () | Wraps hb_face_get_table_tags. |
| Face:get_upem () | Wraps hb_face_get_upem. |
| Face:ot_color_has_palettes () | Wraps hb_ot_color_has_palettes. |
| Face:ot_color_palette_get_count () | Wraps hb_ot_color_palette_get_count. |
| Face:ot_color_palette_get_colors () | Wraps hb_ot_color_palette_get_colors. |
| Face:ot_color_has_layers () | Wraps hb_ot_color_has_layers. |
| Face:ot_color_glyph_get_layers () | Wraps hb_ot_color_glyph_get_layers. |
| Face:ot_color_has_png () | Wraps hb_ot_color_has_png. |
| Face:ot_layout_get_script_tags () | Wraps hb_ot_layout_table_get_script_tags. |
| Face:ot_layout_get_language_tags () | Wraps hb_ot_layout_script_get_language_tags. |
| Face:ot_layout_get_feature_tags () | Wraps hb_ot_layout_language_get_feature_tags. |
| Face:ot_layout_find_script () | Wraps hb_ot_layout_table_find_script. |
| Face:ot_layout_find_language () | Wraps hb_ot_layout_script_find_language. |
| Face:ot_layout_find_feature () | Wraps hb_ot_layout_language_find_feature. |
Class Font
| Font.new (face) | Wraps hb_font_create, and sets up some defaults for scale and shaping functions. |
| Font:get_scale () | Wraps hb_font_get_scale. |
| Font:set_scale (x_scale, y_scale) | Wraps hb_font_set_scale. |
| Font:get_h_extents () | Wraps hb_font_get_h_extents. |
| Font:get_v_extents () | Wraps hb_font_get_v_extents. |
| Font:get_glyph_extents (glyph) | Wraps hb_font_get_glyph_extents. |
| Font:get_glyph_name (glyph) | Wraps hb_font_get_glyph_name. |
| Font:get_glyph_from_name (name) | Wraps hb_font_get_glyph_from_name. |
| Font:get_glyph_h_advance (glyph) | Wraps hb_font_get_glyph_h_advance. |
| Font:get_glyph_v_advance (glyph) | Wraps hb_font_get_glyph_v_advance. |
| Font:get_nominal_glyph (codepoint.) | Wraps hb_font_get_nominal_glyph. |
| Font:ot_color_glyph_get_png () | Wraps hb_ot_color_glyph_get_png. |
Class Buffer
| Buffer.new () | Wraps hb_buffer_create. |
| Buffer:add_utf8 (text[, item_offset=0[, item_length=-1]]) | Wraps hb_buffer_add_utf8. |
| Buffer:add_codepoints (text[, item_offset=0[, item_length=-1]]) | Wraps hb_buffer_add_codepoints. |
| Buffer:set_direction (dir) | Wraps hb_buffer_set_direction. |
| Buffer:get_direction () | Wraps hb_buffer_get_direction. |
| Buffer:set_script (script) | Wraps hb_buffer_set_script. |
| Buffer:get_script () | Wraps hb_buffer_get_script. |
| Buffer:set_language (lang) | Wraps hb_buffer_set_language. |
| Buffer:get_language () | Wraps hb_buffer_get_language. |
| Buffer:reverse () | Wraps hb_buffer_reverse. |
| Buffer:get_length () | Wraps hb_buffer_get_length. |
| Buffer:get_cluster_level () | Wraps hb_buffer_get_cluster_level. |
| Buffer:set_cluster_level (level) | Wraps hb_buffer_set_cluster_level. |
| Buffer:guess_segment_properties () | Wraps hb_buffer_guess_segment_properties. |
| Buffer:get_glyphs () | Helper method to get shaped glyph data. |
Cluster Levels
| Buffer.CLUSTER_LEVEL_MONOTONE_GRAPHEMES | Wraps HB_BUFFER_CLUSTER_LEVEL_MONOTONE_GRAPHEMES. |
| Buffer.CLUSTER_LEVEL_MONOTONE_CHARACTERS | Wraps HB_BUFFER_CLUSTER_LEVEL_MONOTONE_CHARACTERS. |
| Buffer.CLUSTER_LEVEL_CHARACTERS | Wraps HB_BUFFER_CLUSTER_LEVEL_CHARACTERS. |
| Buffer.CLUSTER_LEVEL_DEFAULT | Wraps HB_BUFFER_CLUSTER_LEVEL_DEFAULT. |
| Buffer.GLYPH_FLAG_UNSAFE_TO_BREAK | Wraps HB_GLYPH_FLAG_UNSAFE_TO_BREAK. |
| Buffer.GLYPH_FLAG_DEFINED | Wraps HB_GLYPH_FLAG_DEFINED. |
Class Feature
| Feature.new (feature_string) | Wraps hb_feature_from_string |
| Feature:__tostring () | Wraps hb_feature_to_string. |
Class Tag
| Tag.new (string) | Wraps hb_tag_from_string. |
| Tag:__to_string () | Wraps hb_tag_to_string. |
| Tag:__eq () | Enables equality comparisions with == between two tags. |
Class Script
| Script.new (script) | Wraps hb_script_from_string. |
| Script.from_iso15924_tag (tag) | Wraps hb_script_from_iso15924_tag |
| Script:to_iso15924_tag () | Wraps hb_script_to_iso15924_tag. |
| Script:__to_string () | Enable nice output with tostring(…) |
| Script:__eq () | Enables equality comparisions with == between two scripts. |
Predefined Script Codes
| Script.COMMON | Wraps HB_SCRIPT_COMMON. |
| Script.INHERITED | Wraps HB_SCRIPT_INHERITED. |
| Script.UNKNOWN | Wraps HB_SCRIPT_UNKNOWN. |
| Script.INVALID | Wraps HB_SCRIPT_INVALID. |
Class Direction
| Direction.new (dir) | Wraps hb_direction_from_string. |
| Direction:__to_string () | Wraps hb_direction_to_string. |
| Direction:__eq () | Enables equality comparisions with == between two directions. |
| Direction:is_valid () | Wraps HB_DIRECTION_IS_VALID. |
| Direction:is_horizontal () | Wraps HB_DIRECTION_IS_HORIZONTAL. |
| Direction:is_vertical () | Wraps HB_DIRECTION_IS_VERTICAL. |
| Direction:is_forward () | Wraps HB_DIRECTION_IS_FORWARD. |
| Direction:is_backward () | Wraps HB_DIRECTION_IS_BACKWARD. |
Predefined directions
| Direction.LTR | Wraps HB_DIRECTION_LTR. |
| Direction.RTL | Wraps HB_DIRECTION_RTL. |
| Direction.TTB | Wraps HB_DIRECTION_TTB. |
| Direction.BTT | Wraps HB_DIRECTION_LTR. |
Class Language
| Language.new (lang) | Wraps hb_language_from_string. |
| Language:__to_string () | Wraps hb_language_to_string. |
| Language:__eq () | Enables equality comparisions with == between two languages. |
Predefined languages
| Language.INVALID | Wraps HB_LANGUAGE_INVALID. |
Unicode functions
| unicode.script (char) | Wraps hb_unicode_script |
Predefined Name IDs
| ot.NAME_ID_COPYRIGHT | Wraps HB_OT_NAME_ID_COPYRIGHT |
| ot.NAME_ID_FONT_FAMILY | Wraps HB_OT_NAME_ID_FONT_FAMILY |
| ot.NAME_ID_FONT_SUBFAMILY | Wraps HB_OT_NAME_ID_FONT_SUBFAMILY |
| ot.NAME_ID_UNIQUE_ID | Wraps HB_OT_NAME_ID_UNIQUE_ID |
| ot.NAME_ID_FULL_NAME | Wraps HB_OT_NAME_ID_FULL_NAME |
| ot.NAME_ID_VERSION_STRING | Wraps HB_OT_NAME_ID_VERSION_STRING |
| ot.NAME_ID_POSTSCRIPT_NAME | Wraps HB_OT_NAME_ID_POSTSCRIPT_NAME |
| ot.NAME_ID_TRADEMARK | Wraps HB_OT_NAME_ID_TRADEMARK |
| ot.NAME_ID_MANUFACTURER | Wraps HB_OT_NAME_ID_MANUFACTURER |
| ot.NAME_ID_DESIGNER | Wraps HB_OT_NAME_ID_DESIGNER |
| ot.NAME_ID_DESCRIPTION | Wraps HB_OT_NAME_ID_DESCRIPTION |
| ot.NAME_ID_VENDOR_URL | Wraps HB_OT_NAME_ID_VENDOR_URL |
| ot.NAME_ID_DESIGNER_URL | Wraps HB_OT_NAME_ID_DESIGNER_URL |
| ot.NAME_ID_LICENSE | Wraps HB_OT_NAME_ID_LICENSE |
| ot.NAME_ID_LICENSE_URL | Wraps HB_OT_NAME_ID_LICENSE_URL |
| ot.NAME_ID_TYPOGRAPHIC_FAMILY | Wraps HB_OT_NAME_ID_TYPOGRAPHIC_FAMILY |
| ot.NAME_ID_TYPOGRAPHIC_SUBFAMILY | Wraps HB_OT_NAME_ID_TYPOGRAPHIC_SUBFAMILY |
| ot.NAME_ID_MAC_FULL_NAME | Wraps HB_OT_NAME_ID_MAC_FULL_NAME |
| ot.NAME_ID_SAMPLE_TEXT | Wraps HB_OT_NAME_ID_SAMPLE_TEXT |
| ot.NAME_ID_CID_FINDFONT_NAME | Wraps HB_OT_NAME_ID_CID_FINDFONT_NAME |
| ot.NAME_ID_WWS_FAMILY | Wraps HB_OT_NAME_ID_WWS_FAMILY |
| ot.NAME_ID_WWS_SUBFAMILY | Wraps HB_OT_NAME_ID_WWS_SUBFAMILY |
| ot.NAME_ID_LIGHT_BACKGROUND | Wraps HB_OT_NAME_ID_LIGHT_BACKGROUND |
| ot.NAME_ID_DARK_BACKGROUND | Wraps HB_OT_NAME_ID_DARK_BACKGROUND |
| ot.NAME_ID_VARIATIONS_PS_PREFIX | Wraps HB_OT_NAME_ID_VARIATIONS_PS_PREFIX |
| ot.NAME_ID_INVALID | Wraps HB_OT_NAME_ID_INVALID |
| ot.LAYOUT_NO_SCRIPT_INDEX | Wraps HB_OT_LAYOUT_NO_SCRIPT_INDEX |
| ot.LAYOUT_NO_FEATURE_INDEX | Wraps HB_OT_LAYOUT_NO_FEATURE_INDEX |
| ot.LAYOUT_DEFAULT_LANGUAGE_INDEX | Wraps HB_OT_LAYOUT_DEFAULT_LANGUAGE_INDEX |
| ot.LAYOUT_NO_VARIATIONS_INDEX | Wraps HB_OT_LAYOUT_NO_VARIATIONS_INDEX |
Functions
- version ()
-
Wraps
hb_version - shape (font, buffer[, options])
-
Wraps
hb_shape.Parameters:
- font
Fontto use for shaping - buffer
Bufferto shape - options
table containing one or more supported options:
direction: ADirectionobject representing the object.script: AScriptobject representing the script.language: ALanguageobject representing the language.features: features to enable, specified as either of the following.- comma-separated list of features. See feature string syntax reference
- table of
Featureobjects
- font
Class Blob
Lua wrapper for
hb_blob_t type
- Blob.new (data)
-
Wraps
hb_blob_create. Initializes a newhb_blob_t.Parameters:
- data lua string containing binary or character data.
- Blob.new_from_file (filename)
-
Wraps
hb_blob_create_from_file. Initializes a newhb_blob_t.Parameters:
- filename lua string.
- Blob:get_length ()
-
Wraps
hb_blob_get_length. - Blob:get_data ()
-
Wraps
hb_blob_get_data.
Class Face
Lua wrapper for
hb_face_t type
- Face.new_from_blob (blob[, font_index=0])
-
Wraps
hb_face_create. Initializes a newhb_face_tfrom aBlobobject.Parameters:
- blob
Blobto read the font from. - font_index index of font to read. (default 0)
- blob
- Face.new (file[, font_index=0])
-
Create a new
Facefrom a file. Makes a call toFace:new_from_blobafter creating aBlobfrom the file contents.Parameters:
- file path to font file.
- font_index index of font to read. (default 0)
- Face:collect_unicodes ()
-
Wraps
hb_face_collect_unicodes.Returns:
-
table of codepoints supported by the face.
- Face:get_glyph_count ()
-
Wraps
hb_face_get_glyph_count. - Face:get_table (tag)
-
Wraps
hb_face_reference_table.Parameters:
- tag
Tagobject of the table.
Returns:
Blobobject for the face table oftag. - tag
- Face:get_table_tags ()
-
Wraps
hb_face_get_table_tags.Returns:
-
table of
Tags representing face table tags. - Face:get_upem ()
-
Wraps
hb_face_get_upem. - Face:ot_color_has_palettes ()
-
Wraps
hb_ot_color_has_palettes. - Face:ot_color_palette_get_count ()
-
Wraps
hb_ot_color_palette_get_count. - Face:ot_color_palette_get_colors ()
-
Wraps
hb_ot_color_palette_get_colors. - Face:ot_color_has_layers ()
-
Wraps
hb_ot_color_has_layers. - Face:ot_color_glyph_get_layers ()
-
Wraps
hb_ot_color_glyph_get_layers. - Face:ot_color_has_png ()
-
Wraps
hb_ot_color_has_png. - Face:ot_layout_get_script_tags ()
-
Wraps
hb_ot_layout_table_get_script_tags. - Face:ot_layout_get_language_tags ()
-
Wraps
hb_ot_layout_script_get_language_tags. - Face:ot_layout_get_feature_tags ()
-
Wraps
hb_ot_layout_language_get_feature_tags. - Face:ot_layout_find_script ()
-
Wraps
hb_ot_layout_table_find_script. - Face:ot_layout_find_language ()
-
Wraps
hb_ot_layout_script_find_language. - Face:ot_layout_find_feature ()
-
Wraps
hb_ot_layout_language_find_feature.
Class Font
Lua wrapper for
hb_font_t type
- Font.new (face)
-
Wraps
hb_font_create, and sets up some defaults for scale and shaping functions. Initializes a newhb_font_tfrom aFaceobject. Sets the default scale to the face’s upem value, and sets the font shaping functions by callinghb_ot_font_set_funcson it.Parameters:
- face
Faceobject.
- face
- Font:get_scale ()
-
Wraps
hb_font_get_scale.Returns:
-
two values for the x-scale and y-scale of the font.
- Font:set_scale (x_scale, y_scale)
-
Wraps
hb_font_set_scale.Parameters:
- x_scale desired x-scale of font.
- y_scale desired y-scale of font.
- Font:get_h_extents ()
-
Wraps
hb_font_get_h_extents.Returns:
ascender: typographic ascender.descender: typographic descender.line_gap: line spacing gap.
font extents table for horizontal direction, contains the following or
nilif HarfBuzz fails to load font extents: - Font:get_v_extents ()
-
Wraps
hb_font_get_v_extents.Returns:
-
font extents table for vertical direction, similar to
Font:get_h_extents, ornilif HarfBuzz fails to load font extents: - Font:get_glyph_extents (glyph)
-
Wraps
hb_font_get_glyph_extents.Parameters:
- glyph index inside the font.
Returns:
x_bearing: left side of glyph from origin.y_bearing: top side of glyph from origin.width: distance from left to right side.height: distance from top to bottom side.
extents table contains the following or
nilif HarfBuzz fails to load glyph extents: - Font:get_glyph_name (glyph)
-
Wraps
hb_font_get_glyph_name.Parameters:
- glyph index inside the font.
Returns:
-
name of the glyph or nil.
- Font:get_glyph_from_name (name)
-
Wraps
hb_font_get_glyph_from_name.Parameters:
- name of the glyph.
Returns:
-
glyph index inside the font or nil.
- Font:get_glyph_h_advance (glyph)
-
Wraps
hb_font_get_glyph_h_advance.Parameters:
- glyph index inside the font.
Returns:
-
advance glyph advance of the glyph in horizontal direction.
- Font:get_glyph_v_advance (glyph)
-
Wraps
hb_font_get_glyph_v_advance.Parameters:
- glyph index inside the font.
Returns:
-
advance glyph advance of the glyph in vertical direction.
- Font:get_nominal_glyph (codepoint.)
-
Wraps
hb_font_get_nominal_glyph.Parameters:
- codepoint.
Returns:
-
glyph index or
nilifcodepointis not supported by the font. - Font:ot_color_glyph_get_png ()
-
Wraps
hb_ot_color_glyph_get_png.
Class Buffer
Lua wrapper for
hb_buffer_t type.
- Buffer.new ()
-
Wraps
hb_buffer_create. - Buffer:add_utf8 (text[, item_offset=0[, item_length=-1]])
-
Wraps
hb_buffer_add_utf8.Parameters:
- text UTF8 encoded string.
- item_offset
0-indexed offset in
text, from where to start adding. (default 0) - item_length
length to add from
item_offset.-1adds till end oftext. (default -1)
- Buffer:add_codepoints (text[, item_offset=0[, item_length=-1]])
-
Wraps
hb_buffer_add_codepoints.Parameters:
- text table with codepoints as lua numbers.
- item_offset
0-indexed offset in
text, from where to start adding. (default 0) - item_length
length to add from
item_offset.-1adds till end oftext. (default -1)
- Buffer:set_direction (dir)
-
Wraps
hb_buffer_set_direction.Parameters:
- dir
A
Directionobject.
- dir
A
- Buffer:get_direction ()
-
Wraps
hb_buffer_get_direction.Returns:
-
A
Directionobject. - Buffer:set_script (script)
-
Wraps
hb_buffer_set_script.Parameters:
- script
A
Scriptobject.
- script
A
- Buffer:get_script ()
-
Wraps
hb_buffer_get_script.Returns:
-
A
Scriptobject. - Buffer:set_language (lang)
-
Wraps
hb_buffer_set_language.Parameters:
- lang
A
Languageobject
- lang
A
- Buffer:get_language ()
-
Wraps
hb_buffer_get_language.Returns:
-
A
Languageobject - Buffer:reverse ()
-
Wraps
hb_buffer_reverse. - Buffer:get_length ()
-
Wraps
hb_buffer_get_length. - Buffer:get_cluster_level ()
-
Wraps
hb_buffer_get_cluster_level.Returns:
-
see Cluster Levels
- Buffer:set_cluster_level (level)
-
Wraps
hb_buffer_set_cluster_level.Parameters:
- level see Cluster Levels
- Buffer:guess_segment_properties ()
-
Wraps
hb_buffer_guess_segment_properties. - Buffer:get_glyphs ()
-
Helper method to get shaped glyph data.
Calls
hb_buffer_get_glyph_infos,hb_buffer_get_glyph_positionsandhb_glyph_info_get_glyph_flags, and assembles the data into a Lua table.Returns:
x_advance: horizontal advance.y_advance: vertical advance.x_offset: horizontal displacement.y_offset: vertical displacement.cluster: glyph cluster index within input.codepoint: glyph index inside the font (this field name is a bit misleading, but that’s what Harfbuzz uses).flags: glyph flags
table containing data for each glyph, in a nested table. Each nested table contains the following:
Cluster Levels
See Harfbuzz docs for more details
about what each of these levels mean.
- Buffer.CLUSTER_LEVEL_MONOTONE_GRAPHEMES
-
Wraps
HB_BUFFER_CLUSTER_LEVEL_MONOTONE_GRAPHEMES. - Buffer.CLUSTER_LEVEL_MONOTONE_CHARACTERS
-
Wraps
HB_BUFFER_CLUSTER_LEVEL_MONOTONE_CHARACTERS. - Buffer.CLUSTER_LEVEL_CHARACTERS
-
Wraps
HB_BUFFER_CLUSTER_LEVEL_CHARACTERS. - Buffer.CLUSTER_LEVEL_DEFAULT
-
Wraps
HB_BUFFER_CLUSTER_LEVEL_DEFAULT. - Buffer.GLYPH_FLAG_UNSAFE_TO_BREAK
-
Wraps
HB_GLYPH_FLAG_UNSAFE_TO_BREAK. - Buffer.GLYPH_FLAG_DEFINED
-
Wraps
HB_GLYPH_FLAG_DEFINED.
Class Feature
Lua wrapper for
hb_feature_t type
- Feature.new (feature_string)
-
Wraps
hb_feature_from_stringParameters:
- feature_string See feature string syntax reference
- Feature:__tostring ()
-
Wraps
hb_feature_to_string. Enables nice output withtostring(…).
Class Tag
Lua wrapper for
hb_tag_t type.
- Tag.new (string)
-
Wraps
hb_tag_from_string.Parameters:
- string
to be converted to a
Tagobject.
Returns:
-
a
Tagobject. - string
to be converted to a
- Tag:__to_string ()
-
Wraps
hb_tag_to_string. Enable nice output withtostring(…).Returns:
-
Returns a string representation for the tag object.
- Tag:__eq ()
-
Enables equality comparisions with
==between two tags.Returns:
trueorfalsedepending on whether the two tags are equal.
Class Script
Lua wrapper for
hb_script_t type.
- Script.new (script)
-
Wraps
hb_script_from_string.Parameters:
- script 4-letter script code according to the ISO 15924 standard.
Returns:
-
a
Scriptobject. - Script.from_iso15924_tag (tag)
-
Wraps
hb_script_from_iso15924_tagParameters:
- tag
a
Tagobject representing a ISO 15924 script.
- tag
a
- Script:to_iso15924_tag ()
-
Wraps
hb_script_to_iso15924_tag.Returns:
-
a
Tagobject representing the script. - Script:__to_string ()
-
Enable nice output with
tostring(…)Returns:
-
Returns a 4-letter ISO 15924 script code for the script object.
- Script:__eq ()
-
Enables equality comparisions with
==between two scripts.Returns:
trueorfalsedepending on whether the two scripts are equal.
Predefined Script Codes
Predefined directions that correspond to their original definitions in Harfbuzz.
- Script.COMMON
-
Wraps
HB_SCRIPT_COMMON. - Script.INHERITED
-
Wraps
HB_SCRIPT_INHERITED. - Script.UNKNOWN
-
Wraps
HB_SCRIPT_UNKNOWN. - Script.INVALID
-
Wraps
HB_SCRIPT_INVALID.
Class Direction
Lua wrapper for
hb_direction_t type.
- Direction.new (dir)
-
Wraps
hb_direction_from_string.Parameters:
- dir
can be one of
ltr,rtl,ttb,bttorinvalid.
Returns:
-
a
Directionobject. - dir
can be one of
- Direction:__to_string ()
-
Wraps
hb_direction_to_string. Enable nice output withtostring(…).Returns:
-
Returns a string representation for direction.
- Direction:__eq ()
-
Enables equality comparisions with
==between two directions.Returns:
trueorfalsedepending on whether the two tags are equal. - Direction:is_valid ()
-
Wraps
HB_DIRECTION_IS_VALID.Returns:
-
a boolean value
- Direction:is_horizontal ()
-
Wraps
HB_DIRECTION_IS_HORIZONTAL.Returns:
-
a boolean value
- Direction:is_vertical ()
-
Wraps
HB_DIRECTION_IS_VERTICAL.Returns:
-
a boolean value
- Direction:is_forward ()
-
Wraps
HB_DIRECTION_IS_FORWARD.Returns:
-
a boolean value
- Direction:is_backward ()
-
Wraps
HB_DIRECTION_IS_BACKWARD.Returns:
-
a boolean value
Predefined directions
Predefined directions that correspond to their original definitions in Harfbuzz.
- Direction.LTR
-
Wraps
HB_DIRECTION_LTR. - Direction.RTL
-
Wraps
HB_DIRECTION_RTL. - Direction.TTB
-
Wraps
HB_DIRECTION_TTB. - Direction.BTT
-
Wraps
HB_DIRECTION_LTR.
Class Language
Lua wrapper for
hb_language_t type.
- Language.new (lang)
-
Wraps
hb_language_from_string.Parameters:
- lang
three-letter language tag to be converted to a
Languageobject.
Returns:
-
a
Languageobject. - lang
three-letter language tag to be converted to a
- Language:__to_string ()
-
Wraps
hb_language_to_string. Enable nice output withtostring(…).Returns:
-
Returns a string representation for the language object.
- Language:__eq ()
-
Enables equality comparisions with
==between two languages.Returns:
trueorfalsedepending on whether the two languages are equal.
Predefined languages
Predefined languages that correspond to their original definitions in Harfbuzz.
Unicode functions
- unicode.script (char)
-
Wraps
hb_unicode_scriptParameters:
- char Unicode codepoint
Returns:
-
a
Scriptobject.
Predefined Name IDs
Predefined OpenType 'name' table name identifier.
- ot.NAME_ID_COPYRIGHT
-
Wraps
HB_OT_NAME_ID_COPYRIGHT - ot.NAME_ID_FONT_FAMILY
-
Wraps
HB_OT_NAME_ID_FONT_FAMILY - ot.NAME_ID_FONT_SUBFAMILY
-
Wraps
HB_OT_NAME_ID_FONT_SUBFAMILY - ot.NAME_ID_UNIQUE_ID
-
Wraps
HB_OT_NAME_ID_UNIQUE_ID - ot.NAME_ID_FULL_NAME
-
Wraps
HB_OT_NAME_ID_FULL_NAME - ot.NAME_ID_VERSION_STRING
-
Wraps
HB_OT_NAME_ID_VERSION_STRING - ot.NAME_ID_POSTSCRIPT_NAME
-
Wraps
HB_OT_NAME_ID_POSTSCRIPT_NAME - ot.NAME_ID_TRADEMARK
-
Wraps
HB_OT_NAME_ID_TRADEMARK - ot.NAME_ID_MANUFACTURER
-
Wraps
HB_OT_NAME_ID_MANUFACTURER - ot.NAME_ID_DESIGNER
-
Wraps
HB_OT_NAME_ID_DESIGNER - ot.NAME_ID_DESCRIPTION
-
Wraps
HB_OT_NAME_ID_DESCRIPTION - ot.NAME_ID_VENDOR_URL
-
Wraps
HB_OT_NAME_ID_VENDOR_URL - ot.NAME_ID_DESIGNER_URL
-
Wraps
HB_OT_NAME_ID_DESIGNER_URL - ot.NAME_ID_LICENSE
-
Wraps
HB_OT_NAME_ID_LICENSE - ot.NAME_ID_LICENSE_URL
-
Wraps
HB_OT_NAME_ID_LICENSE_URL - ot.NAME_ID_TYPOGRAPHIC_FAMILY
-
Wraps
HB_OT_NAME_ID_TYPOGRAPHIC_FAMILY - ot.NAME_ID_TYPOGRAPHIC_SUBFAMILY
-
Wraps
HB_OT_NAME_ID_TYPOGRAPHIC_SUBFAMILY - ot.NAME_ID_MAC_FULL_NAME
-
Wraps
HB_OT_NAME_ID_MAC_FULL_NAME - ot.NAME_ID_SAMPLE_TEXT
-
Wraps
HB_OT_NAME_ID_SAMPLE_TEXT - ot.NAME_ID_CID_FINDFONT_NAME
-
Wraps
HB_OT_NAME_ID_CID_FINDFONT_NAME - ot.NAME_ID_WWS_FAMILY
-
Wraps
HB_OT_NAME_ID_WWS_FAMILY - ot.NAME_ID_WWS_SUBFAMILY
-
Wraps
HB_OT_NAME_ID_WWS_SUBFAMILY - ot.NAME_ID_LIGHT_BACKGROUND
-
Wraps
HB_OT_NAME_ID_LIGHT_BACKGROUND - ot.NAME_ID_DARK_BACKGROUND
-
Wraps
HB_OT_NAME_ID_DARK_BACKGROUND - ot.NAME_ID_VARIATIONS_PS_PREFIX
-
Wraps
HB_OT_NAME_ID_VARIATIONS_PS_PREFIX - ot.NAME_ID_INVALID
-
Wraps
HB_OT_NAME_ID_INVALID - ot.LAYOUT_NO_SCRIPT_INDEX
-
Wraps
HB_OT_LAYOUT_NO_SCRIPT_INDEX - ot.LAYOUT_NO_FEATURE_INDEX
-
Wraps
HB_OT_LAYOUT_NO_FEATURE_INDEX - ot.LAYOUT_DEFAULT_LANGUAGE_INDEX
-
Wraps
HB_OT_LAYOUT_DEFAULT_LANGUAGE_INDEX - ot.LAYOUT_NO_VARIATIONS_INDEX
-
Wraps
HB_OT_LAYOUT_NO_VARIATIONS_INDEX