fo:bidi-override
Overrides the default Unicode-bidirectional-algorithm direction for different (or nested) inline scripts in mixed-language documents. If the element is inline-level or a block-level element that contains only inline-level elements, this creates an override. This means that inside the element, reordering is strictly in sequence according to the 'direction' property; the implicit part of the bidirectional algorithm is ignored. This corresponds to adding a LRO (U+202D; for 'direction: ltr') or RLO (U+202E; for 'direction: rtl') at the start of the element and a PDF (U+202C) at the end of the element.
Element information
Namespace: http://www.w3.org/1999/XSL/Format
Schema document: fo.xsd
Type: Anonymous
Properties: Global, Qualified
Content
- Any text (mixed) content, intermingled with:
- Choice [0..*]
- fo:blockFormats paragraphs, titles, headlines, figure and table captions, etc. The start edge (and end edge) of the block is displaced by the least amount necessary to insure that (a) the start edge (end edge) of the block does not intersect any of the start intrusions (end intrusions) that overlap that block and (b) the amount by which it is displaced is at least as much as the displacement of the parent area, provided the parent is a block-area which is not a reference-area. An intrusion is said to overlap a block if the there is a line parallel to the inline progression direction that intersects the allocation rectangles of both the block and the intrusion.
- fo:block-containerGenerates a block-level reference-area.
- fo:table-and-captionFormats a table together with its caption.
- fo:tableA table.
- fo:list-blockA list.
- fo:bidi-overrideOverrides the default Unicode-bidirectional-algorithm direction for different (or nested) inline scripts in mixed-language documents. If the element is inline-level or a block-level element that contains only inline-level elements, this creates an override. This means that inside the element, reordering is strictly in sequence according to the 'direction' property; the implicit part of the bidirectional algorithm is ignored. This corresponds to adding a LRO (U+202D; for 'direction: ltr') or RLO (U+202E; for 'direction: rtl') at the start of the element and a PDF (U+202C) at the end of the element.
- fo:characterA character that is mapped to a glyph for presentation.
- fo:external-graphicA graphic where the graphics data resides outside of the XML result tree in the fo namespace.
- fo:instream-foreign-objectAn inline graphic or other "generic" object where the object data resides as descendants of the fo:instream-foreign-object.
- fo:inlineFormats a portion of text with a background or enclosing it in a border.
- fo:inline-containerGenerates an inline reference-area.
- fo:leaderGenerates leaders consisting either of a rule or of a row of a repeating character or cyclically repeating pattern of characters that may be used for connecting two text formatting objects.
- fo:page-numberThe current page-number.
- fo:page-number-citationReferences the page-number for the page containing the first normal area returned by the cited formatting object.
- fo:page-number-citation-lastReferences the page-number for the last page containing the an area that is (a) returned by the cited formatting object and (b) has an area-class that is consistent with the specified page-citation-strategy.
- fo:scaling-value-citationObtains the scale-factor applied to the cited fo:external-graphic.
- fo:basic-linkThe start resource of a simple link.
- fo:multi-toggleUsed within an fo:multi-case to switch to another fo:multi-case.
- fo:index-page-citation-listGroups together the sets of cited page items generated by its fo:index-key-reference children. The ultimate effect of the fo:index-page-citation-list is to generate a formatted list of page numbers and ranges.
- fo:footnoteProduces a footnote citation and the corresponding footnote.
- fo:multi-switchWraps the specification of alternative sub-trees of formatting objects (each sub-tree being within an fo:multi-case), and controls the switching (activated via fo:multi-toggle) from one alternative to another.
- fo:multi-propertiesSwitches between two or more property sets that are associated with a given portion of content.
- fo:index-range-beginThe beginning of an "indexed range" associated with an index key. The index range is ended by a corresponding fo:index-range-end.
- fo:index-range-endThe end of an "indexed range" that is started by its matching fo:index-range-begin.
- fo:wrapperSpecifies inherited properties for a group of formatting objects. It has no additional formatting semantics.
- fo:retrieve-markerUsed in conjunction with fo:marker to produce running headers or footers.
- fo:retrieve-table-markerUsed in conjunction with fo:marker to produce table-headers and table-footers whose content can change over different pages, different regions or different columns.
- fo:change-bar-beginThe beginning of a "change region" that is ended by its matching fo:change-bar-end. The change region is decorated with a change bar down either the start or end edge of the column. The style of the change bar is determined by the value of various change bar related properties.
- fo:change-bar-endThe end of a "change region" that is started by its matching fo:change-bar-begin.
- fo:floatServes two purposes. It can be used so that during the normal placement of content, some related content is formatted into a separate area at beginning of the page (or of some following page) where it is available to be read without immediately intruding on the reader. Alternatively, it can be used when an area is intended to float to one side, with normal content flowing alongside.
from group fo:block-onlyfrom group fo:inline-onlyfrom group fo:either-block-or-inline
Attributes
| Name | Occ | Type | Description | Notes |
|---|---|---|---|---|
| azimuth | [0..1] | Anonymous | CSS2 Reference: | from group fo:azimuth |
| cue-after | [0..1] | fo:cue | Sound to be played before the element to delimit it. CSS2 Reference: | from group fo:cue-after |
| cue-before | [0..1] | fo:cue | Sound to be played after the element to delimit it. CSS2 Reference: | from group fo:cue-before |
| cue | [0..1] | Anonymous | A shorthand for setting 'cue-before' and 'cue-after'. If two values are given, the first value is 'cue-before' and the second is 'cue-after'. If only one value is given, it applies to both properties. CSS2 Reference: | from group fo:cue |
| elevation | [0..1] | Anonymous | CSS2 Reference: | from group fo:elevation |
| pause-after | [0..1] | fo:pause | A pause to be observed before speaking an element's content. CSS2 Reference: | from group fo:pause-after |
| pause-before | [0..1] | fo:pause | A pause to be observed after speaking an element's content. CSS2 Reference: | from group fo:pause-before |
| pause | [0..1] | Anonymous | A shorthand for setting 'pause-before' and 'pause-after'. If two values are given, the first value is 'pause-before' and the second is 'pause-after'. If only one value is given, it applies to both properties. CSS2 Reference: | from group fo:pause |
| pitch | [0..1] | Anonymous | The average pitch (a frequency) of the speaking voice. The average pitch of a voice depends on the voice family. For example, the average pitch for a standard male voice is around 120Hz, but for a female voice, it's around 210Hz. CSS2 Reference: | from group fo:pitch |
| pitch-range | [0..1] | fo:number-or-inherit | Variation in average pitch. The perceived pitch of a human voice is determined by the fundamental frequency and typically has a value of 120Hz for a male voice and 210Hz for a female voice. Human languages are spoken with varying inflection and pitch; these variations convey additional meaning and emphasis. Thus, a highly animated voice, i.e., one that is heavily inflected, displays a high pitch range. This property specifies the range over which these variations occur, i.e., how much the fundamental frequency may deviate from the average pitch. CSS2 Reference: | from group fo:pitch-range |
| play-during | [0..1] | Anonymous | Similar to the 'cue-before' and 'cue-after' properties, this property specifies a sound to be played as a background while an element's content is spoken. CSS2 Reference: | from group fo:play-during |
| richness | [0..1] | fo:number-or-inherit | The richness, or brightness, of the speaking voice. A rich voice will "carry" in a large room, a smooth voice will not. (The term "smooth" refers to how the wave form looks when drawn.). A value between '0' and '100'. The higher the value, the more the voice will carry. A lower value will produce a soft, mellifluous voice. CSS2 Reference: | from group fo:richness |
| speak | [0..1] | Anonymous | Whether text will be rendered aurally and if so, in what manner. CSS2 Reference: | from group fo:speak |
| speak-header | [0..1] | Anonymous | Whether table headers are spoken before every cell, or only before a cell when that cell is associated with a different header than the previous cell. CSS2 Reference: | from group fo:speak-header |
| speak-numeral | [0..1] | Anonymous | How numerals are spoken. CSS2 Reference: | from group fo:speak-numeral |
| speak-punctuation | [0..1] | Anonymous | How punctuation is spoken. CSS2 Reference: | from group fo:speak-punctuation |
| speech-rate | [0..1] | Anonymous | The speaking rate. Note that both absolute and relative keyword values are allowed (compare with 'font-size'). CSS2 Reference: | from group fo:speech-rate |
| stress | [0..1] | fo:number-or-inherit | The height of "local peaks" in the intonation contour of a voice. For example, English is a stressed language, and different parts of a sentence are assigned primary, secondary, or tertiary stress. The value of 'stress' controls the amount of inflection that results from these stress markers. This property is a companion to the 'pitch-range' property and is provided to allow developers to exploit higher-end auditory displays. A value, between '0' and '100'. The meaning of values depends on the language being spoken. For example, a level of '50' for a standard, English-speaking male voice (average pitch = 122Hz), speaking with normal intonation and emphasis would have a different meaning than '50' for an Italian voice. CSS2 Reference: | from group fo:stress |
| voice-family | [0..1] | Anonymous | A comma-separated, prioritized list of voice family names. CSS2 Reference: | from group fo:voice-family |
| volume | [0..1] | Anonymous | The median volume of the waveform. In other words, a highly inflected voice at a volume of 50 might peak well above that. The overall values are likely to be human adjustable for comfort, for example with a physical volume control (which would increase both the 0 and 100 values proportionately); what this property does is adjust the dynamic range. CSS2 Reference: | from group fo:volume |
| font-family | [0..1] | Anonymous | A prioritized list of font family names and/or generic family names. To deal with the problem that a single font may not contain glyphs to display all the characters in a document, or that not all fonts are available on all systems, this property allows authors to specify a list of fonts, all of the same style and size, that are tried in sequence to see if they contain a glyph for a certain character. This list is called a font set. CSS2 Reference: | from group fo:font-family |
| font-selection-strategy | [0..1] | Anonymous | from group fo:font-selection-strategy | |
| font-size | [0..1] | fo:font-size | The size of the font when set solid. The font size corresponds to the em square, a concept used in typography. Note that certain glyphs may bleed outside their em squares. CSS2 Reference: | from group fo:font-size |
| font-stretch | [0..1] | Anonymous | Selects a normal, condensed, or extended face from a font family. | from group fo:font-stretch |
| font-size-adjust | [0..1] | Anonymous | An aspect value for an element that will preserve the x-height of the first choice font in the substitute font. This property allows authors to specify an aspect value for an element that will preserve the x-height of the first choice font in the substitute font. CSS2 Reference: | from group fo:font-size-adjust |
| font-style | [0..1] | fo:font-style | Requests normal (sometimes referred to as "roman" or "upright"), italic, and oblique faces within a font family. CSS2 Reference: | from group fo:font-style |
| font-variant | [0..1] | fo:font-variant | In a small-caps font, the glyphs for lowercase letters look similar to the uppercase ones, but in a smaller size and with slightly different proportions. The "font-variant" property requests such a font for bicameral (having two cases, as with Roman script). This property has no visible effect for scripts that are unicameral (having only one case, as with most of the world's writing systems). CSS2 Reference: | from group fo:font-variant |
| font-weight | [0..1] | fo:font-weight | The weight of the font. CSS2 Reference: | from group fo:font-weight |
| font | [0..1] | Anonymous | A shorthand property for setting "font-style", "font-variant", "font-weight", "font-size", "line-height", and "font-family", at the same place in the stylesheet. The syntax of this property is based on a traditional typographical shorthand notation to set multiple properties related to fonts. Value is [ [ <font-style> || <font-variant> || <font-weight> ]? <font-size> [ / <line-height>]? <font-family> ] | caption | icon | menu | message-box | small-caption | status-bar | inherit CSS2 Reference: | from group fo:font |
| top | [0..1] | fo:offset | How far a box's top margin edge is offset below the top edge of the box's containing block. CSS2 Reference: | from group fo:top |
| right | [0..1] | fo:offset | How far a box's right margin edge is offset to the left of the right edge of the box's containing block. CSS2 Reference: | from group fo:right |
| bottom | [0..1] | fo:offset | How far a box's bottom margin edge is offset above the bottom edge of the box's containing block. CSS2 Reference: | from group fo:bottom |
| left | [0..1] | fo:offset | How far a box's left margin edge is offset to the right of the left edge of the box's containing block. CSS2 Reference: | from group fo:left |
| relative-position | [0..1] | Anonymous | from group fo:relative-position | |
| position | [0..1] | Anonymous | The positioning scheme to be used. CSS2 Reference: | from group fo:position |
| color | [0..1] | Anonymous | The foreground color of an element's text content. CSS2 Reference: | from group fo:color |
| direction | [0..1] | Anonymous | The base writing direction of blocks and the direction of embeddings and overrides for the Unicode BIDI algorithm. In addition, it specifies the direction of table column layout, the direction of horizontal overflow, and the position of an incomplete last line in a block in case of 'text-align: justify'. This property only has an effect on text in which the orientation of the glyphs is perpendicular to the inline-progression-direction. Therefore, vertical ideographic text with the initial value for "glyph-orientation-vertical" is not affected by this property; vertical text for which the "glyph-orientation-vertical" property has the value of "90" or "-90" degrees is affected. CSS2 Reference: | from group fo:direction |
| id | [0..1] | fo:id | An identifier unique within all objects in the result tree with the fo: namespace. It allows references to this formatting object by other objects. | from group fo:id |
| index-class | [0..1] | fo:string | Associates an index class with a formatting object that also has an index key specified. | from group fo:index-class |
| index-key | [0..1] | fo:string | Associates an index key with the formatting object on which it is specified. | from group fo:index-key |
| letter-spacing | [0..1] | Anonymous | Spacing behavior between text characters. CSS2 Reference: | from group fo:letter-spacing |
| line-height | [0..1] | Anonymous | On a block container element whose content is composed of inline-level elements, 'line-height' specifies the minimal height of line boxes within the element. CSS2 Reference: | from group fo:line-height |
| score-spaces | [0..1] | Anonymous | Whether the text-decoration property shall be applied to spaces. | from group fo:score-spaces |
| unicode-bidi | [0..1] | Anonymous | CSS2 Reference: | from group fo:unicode-bidi |
| word-spacing | [0..1] | Anonymous | Spacing behavior between words. CSS2 Reference: | from group fo:word-spacing |
Used in
- Anonymous type of element fo:basic-link via reference to fo:block-or-inline
- Anonymous type of element fo:bidi-override via reference to fo:block-or-inline
- Anonymous type of element fo:block via reference to fo:block-or-inline
- Anonymous type of element fo:inline via reference to fo:block-or-inline
- Anonymous type of element fo:leader via reference to fo:inline
- Anonymous type of element fo:marker via reference to fo:block-or-inline
- Anonymous type of element fo:multi-case via reference to fo:block-or-inline
- Anonymous type of element fo:multi-toggle via reference to fo:block-or-inline
- Anonymous type of element fo:title via reference to fo:inline
- Anonymous type of element fo:wrapper via reference to fo:block-or-inline
- Group fo:block-or-inline via reference to fo:inline-only
- Group fo:inline via reference to fo:inline-only
- Group fo:inline-only
- Type fo:simple-mixed-text via reference to fo:inline (Elements fo:folio-prefix, fo:folio-suffix, fo:index-page-number-prefix, fo:index-page-number-suffix, fo:index-page-citation-list-separator, fo:index-page-citation-range-separator)
Sample instance
<fo:bidi-override>Any text, intermingled with: <fo:block>Any text, intermingled with: <fo:block>Any text, intermingled with: <fo:block>Any text, intermingled with:... </fo:block> </fo:block> </fo:block> </fo:bidi-override>