Module tf.advanced.display

Display

Where the advanced API really shines is in displaying nodes. There are basically two ways of displaying a node:

  • plain: just the associated text of a node, or if that would be too much, an identifying label of that node (e.g. for books, chapters and lexemes).
  • pretty: a display of the internal structure of the textual object a node stands for. That structure is adorned with relevant feature values.

These display methods are available for nodes, tuples of nodes, and iterables of tuples of nodes (think: query results). The names of these methods are

In plain and pretty displays, certain parts can be highlighted, which is good for displaying query results where the parts that correspond directly to the search template are highlighted.

Display parameters

There is a bunch of parameters that govern how the display functions arrive at their results. You can pass them as optional arguments to these functions, or you can set up them in advance, and reset them to their original state when you are done.

All calls to the display functions look for the values for these parameters in the following order:

  • optional parameters passed directly to the function,
  • values as set up by previous calls to displaySetup(),
  • corpus dependent default values configured by the advanced API.

See tf.advanced.options for a list of display parameters.

Rendering

Both pretty() and plain() are implemented as a call to the render() function.

See also

All about the nature and implementation of the display algorithm is in tf.about.displaydesign.

Expand source code Browse git 
"""
# Display

Where the advanced API really shines is in displaying nodes.
There are basically two ways of displaying a node:

* *plain*: just the associated text of a node, or if that would be too much,
  an identifying label of that node (e.g. for books, chapters and lexemes).
* *pretty*: a display of the internal structure of the textual object a node
  stands for. That structure is adorned with relevant feature values.

These display methods are available for nodes, tuples of nodes, and iterables
of tuples of nodes (think: query results).
The names of these methods are

* `plain`, `plainTuple`, and `table`;
* `pretty`, `prettyTuple` and `show`.

In plain and pretty displays, certain parts can be *highlighted*, which is
good for displaying query results where the parts that correspond directly to the
search template are highlighted.

## Display parameters

There is a bunch of parameters that govern how the display functions arrive at their
results. You can pass them as optional arguments to these functions,
or you can set up them in advance, and reset them to their original state
when you are done.

All calls to the display functions look for the values for these parameters in the
following order:

* optional parameters passed directly to the function,
* values as set up by previous calls to `displaySetup()`,
* corpus dependent default values configured by the advanced API.

See `tf.advanced.options` for a list of display parameters.

## Rendering

Both `pretty` and `plain` are implemented as a call to the
`tf.advanced.render.render` function.

## See also

All about the nature and implementation of the display algorithm is in
`tf.about.displaydesign`.
"""


import types
from textwrap import dedent

from ..core.helpers import mdEsc, tsvEsc
from ..core.files import (
    normpath,
    abspath,
    dirMake,
    dirNm,
    expanduser as ex,
    DOWNLOADS,
    SERVER_DISPLAY_BASE,
    SERVER_DISPLAY,
)
from ..core.timestamp import SILENT_D, silentConvert
from .helpers import getHeaderTypes, getRowsX, tupleEnum, RESULT, dh, showDict, _getLtr
from .condense import condense, condenseSet
from .highlight import getTupleHighlights
from .options import Options
from .render import render
from .unravel import unravel

LIMIT_SHOW = 100
LIMIT_TABLE = 2000


def displayApi(app, silent=SILENT_D):
    """Produce the display API.

    The display API provides methods to generate styled representations
    of pieces of corpus texts in their relevant structures.
    The main end-user functions are `plain(node)` and `pretty(node)`.

    `plain()` focuses on the plain text, `pretty()` focuses on structure
    and feature display.

    Related are `plainTuple()` and `prettyTuple()` that work for tuples
    instead of nodes.

    And further there are `show()` and `table()`, that work
    with iterables of tuples of nodes (e.g. query results).

    Parameters
    ----------
    app: obj
        The high-level API object
    silent: string, optional tf.core.timestamp.SILENT_D`
        See `tf.core.timestamp.Timestamp`
        Normally this parameter is taken from the app,
        but when we do an `A.reuse()` we force `silent="deep"`.
    """

    silent = silentConvert(silent)
    app.export = types.MethodType(export, app)
    app.table = types.MethodType(table, app)
    app.plainTuple = types.MethodType(plainTuple, app)
    app.plain = types.MethodType(plain, app)
    app.show = types.MethodType(show, app)
    app.prettyTuple = types.MethodType(prettyTuple, app)
    app.pretty = types.MethodType(pretty, app)
    app.unravel = types.MethodType(unravel, app)
    app.loadCss = types.MethodType(loadCss, app)
    app.getCss = types.MethodType(getCss, app)
    app.displayShow = types.MethodType(displayShow, app)
    app.displaySetup = types.MethodType(displaySetup, app)
    app.displayReset = types.MethodType(displayReset, app)

    app.display = Options(app)
    if not app._browse:
        app.loadCss()


def displayShow(app, *options):
    """Show display parameters.

    Shows current values of all or selected display parameters.

    Parameters
    ----------
    options: keys
        Options of which the current value will be shown.
        If no option is passes, all options will be shown.

    See Also
    --------
    tf.advanced.settings: options allowed in `config.yaml`
    """

    inNb = app.inNb
    _browse = app._browse
    display = app.display
    display.setup()
    data = display.current
    return showDict("<b>current display options</b>", data, _browse, inNb, *options)


def displaySetup(app, **options):
    """Set up all display parameters.

    Shows current values of display parameters and/or
    assigns working values to display parameters.
    All subsequent calls to display functions such as `plain` and `pretty`
    will use these values, unless they themselves are passed overriding
    values as arguments.

    These working values remain in effect until a new call to `displaySetup()`
    assigns new values, or a call to `displayReset()` resets the values to the
    defaults.

    !!! hint "show current values"
        The defaults themselves come from the corpus settings, which are influenced
        by its `config.yaml` file, if it exists. See `tf.advanced.settings`.
        You can show the current values by means of `displayShow`.

    Parameters
    ----------
    show: keys
        Options of which the current value will be shown.
    options: key-values
        Explicit values for selected options that act as overrides of the defaults.

    See Also
    --------
    tf.advanced.settings: options allowed in `config.yaml`
    tf.advanced.options: all available display options
    """

    display = app.display

    display.setup(**options)


def displayReset(app, *options):
    """Restore display parameters to their defaults.

    Reset the given display parameters to their default value and let the others
    retain their current value.

    So you can reset the display parameters selectively.

    Parameters
    ----------
    options: list, optional []
        If present, only restore these options to their defaults.
        Otherwise, restore all display settings.
    """

    display = app.display

    display.reset(*options)


def loadCss(app):
    """Load the CSS for this app.

    If we are in the TF-browser, the generic CSS is already provided, we only
    need to respond with the app-specific CSS: we return it as string.
    The flag `app._browse` is used to steer us into this case.

    Otherwise, if we are in a notebook,
    we collect the complete CSS code from Text-Fabric and the app,
    and we add a piece to override some of the notebook CSS for tables,
    which specify a table layout with right aligned cell contents by default.

    We then load the resulting CSS into the notebook.

    Otherwise, we do nothing.

    Returns
    -------
    None | string
        When in the TF browser, the app-dependent CSS is returned.
        Otherwise, nothing is returned, but the complete CSS is displayed as HTML in the notebook.
    """

    _browse = app._browse
    aContext = app.context
    appCss = aContext.css

    if _browse:
        return appCss

    if not app.inNb:
        return

    css = getCss(app)
    dh(css)
    dh(
        dedent(
            """
            <script>
            globalThis.copyChar = (el, c) => {
                for (const el of document.getElementsByClassName('ccon')) {
                    el.className = 'ccoff'
                }
                el.className = 'ccon'
                navigator.clipboard.writeText(String.fromCharCode(c))
            }
            </script>
            """
        )
    )


def getCss(app):
    """Export the CSS for this app.

    We collect the complete CSS code from Text-Fabric and the app,
    and we add a piece to override some of the notebook CSS for tables,
    which specify a table layout with right aligned cell contents by default.

    Returns
    -------
    None | string
        CSS code, including a surrounding `<style>` element.
    """

    aContext = app.context
    appCss = aContext.css

    cssPath = f"{dirNm(dirNm(abspath(__file__)))}" f"{SERVER_DISPLAY_BASE}"
    cssPath = normpath(cssPath)
    genericCss = ""
    for cssFile in SERVER_DISPLAY:
        with open(f"{cssPath}/{cssFile}", encoding="utf8") as fh:
            genericCss += fh.read()

    tableCss = (
        "tr.tf.ltr, td.tf.ltr, th.tf.ltr { text-align: left ! important;}\n"
        "tr.tf.rtl, td.tf.rtl, th.tf.rtl { text-align: right ! important;}\n"
    )
    return f"<style>{tableCss}{genericCss}{appCss}</style>"


def export(app, tuples, toDir=None, toFile="results.tsv", **options):
    """Exports an iterable of tuples of nodes to an Excel friendly `.tsv` file.

    !!! hint "Examples"
        See for detailed examples the
        [exportExcel (etcbc/bhsa)](https://nbviewer.jupyter.org/github/etcbc/bhsa/blob/master/tutorial/exportExcel.ipynb)
        and
        [exportExcel (Nino-cunei/oldbabylonian)](https://nbviewer.jupyter.org/github/Nino-cunei/oldbabylonian/blob/master/tutorial/exportExcel.ipynb)
        notebooks.

    Parameters
    ----------
    tuples: iterable of tuples of integer
        The integers are the nodes, together they form a table.
        The table maybe uniform or not uniform,
        which matters to the output. See below.
    toDir: string, optional None
        The destination directory for the exported file.
        By default it is your Downloads folder.

        If the directory does not exist, it will be created.
    toFile: boolean, optional results.tsv
        The name of the exported file.
    options: dict
        Display options, see `tf.advanced.options`.

        !!! note "details"
            * `condensed`
              Has no effect. Exports to Excel will not be condensed, because the
              number of columns is variable per row in that case.
              Excel itself has nice possibilities for grouping rows.
              You can also filter your tuples by means of hand-coding
              before exporting them.
            * `condenseType`
              The condense type influences for which nodes
              the full text will be exported.
              Only nodes that are "smaller" than the condense type will have
              their full text exported.
            * `fmt`
              This display parameter specifies the text format for any nodes
              that trigger a text value to be exported.
            * `tupleFeatures`
              This is a display parameter that steers which features are exported
              with each member of the tuples in the list.

              If the iterable of tuples are the results of a query you have just
              run, then an appropriate call to `displaySetup(tupleFeatures=...)`
              has already been issued, so you can just say:

                 results = A.search(query)`
                 A.export(results)`

    Results
    -------
    A file *toFile* in directory *toDir* with the following content:

    There will be a row for each tuple.

    If the input tuples are *uniform*, i.e. each tuple has the
    same number of nodes, and nodes in the same column have the same node types,
    then the result table has the following layout:

    The columns are:

    * **R** the sequence number of the result tuple in the result list
    * **S1 S2 S3** the section as book, chapter, verse, in separate columns;
      the section is the section of the first non book/chapter node in the tuple
    * **NODEi TYPEi** the node and its type,
      for each node **i** in the result tuple
    * **TEXTi** the full text of node **i**,
      if the node type admits a concise text representation;
      the criterion is whether the node type has a type not bigger than the
      default condense type, which is app specific.
      If you pass an explicit `condenseType=`*xxx* as display parameter,
      then this is the reference condenseType on which the decision is based.
    * **XFi** the value of extra feature **XF** for node **i**,
      where these features have been declared by a previous
      displaySetup(tupleFeatures=...)`

    If the input tuples are not uniform, the layout is more primitive.
    There will be no header column, because the number of columns may vary per row.
    A row contains the successive information of all nodes in a tuple.
    Depending of the type of each node you get a number of columns of section information.
    Then follow two columns with the node and the node type.
    Depending on the type of the node, there follows a column with the text of the node.
    No additional features are produced.

    !!! caution "Encoding"
        The exported file is written in the `utf_16_le` encoding.
        This ensures that Excel can open it without hassle, even if there
        are non-latin characters inside.

        When you want to read the exported file programmatically,
        open it with `encoding=utf_16`.

    !!! caution "Quotes"
        If the text of a field starts with a single or double quote,
        we insert a backslash in front of it, otherwise programs like
        Excel and Numbers will treat it in a special way.
    """

    display = app.display

    if not display.check("table", options):
        return ""

    dContext = display.distill(options)
    fmt = dContext.fmt
    condenseType = dContext.condenseType
    tupleFeatures = dContext.tupleFeatures

    toDir = ex(DOWNLOADS) if toDir is None else ex(toDir)
    dirMake(toDir)
    toPath = f"{toDir}/{toFile}"

    resultsX = getRowsX(app, tuples, tupleFeatures, condenseType, fmt=fmt)

    with open(toPath, "w", encoding="utf_16_le") as fh:
        fh.write(
            "\ufeff"
            + "".join(
                ("\t".join("" if t is None else tsvEsc(t) for t in tup) + "\n")
                for tup in resultsX
            )
        )


# PLAIN and FRIENDS


def table(app, tuples, _asString=False, **options):
    """Plain displays of an iterable of tuples of nodes in a table.

    The list is displayed as a compact markdown table.
    Every row is prepended with the sequence number in the iterable,
    and then displayed by `plainTuple`

    !!! hint "condense, condenseType"
        You can condense the list first to containers of `condenseType`,
        before displaying the list.
        Pass the display parameters `condense` and `condenseType`.
        See `tf.advanced.options`.

    Parameters
    ----------
    tuples: iterable of tuples of integer
        The integers are the nodes, together they form a table.
    options: dict
        Display options, see `tf.advanced.options`.
    _asString: boolean, optional False
        Whether to deliver the result as a HTML string or to display it directly
        inside a notebook. When the TF-browser uses this function it needs the
        HTML string.
    """

    display = app.display

    if not display.check("table", options):
        return ""

    _browse = app._browse
    inNb = app.inNb

    api = app.api

    dContext = display.distill(options)
    end = dContext.end
    start = dContext.start
    withPassage = dContext.withPassage
    condensed = dContext.condensed
    condenseType = dContext.condenseType
    skipCols = dContext.skipCols

    ltr = _getLtr(app, dContext) or "ltr"

    item = condenseType if condensed else RESULT

    if condensed:
        tuples = condense(api, tuples, condenseType, multiple=True)
        skipCols = set()

    passageHead = f'</th><th class="tf {ltr}">p' if withPassage is True else ""

    html = []
    one = True

    newOptions = display.consume(options, "skipCols")

    theseTuples = tuple(tupleEnum(tuples, start, end, LIMIT_TABLE, item, inNb))
    headerTypes = getHeaderTypes(app, theseTuples)

    for (i, tup) in theseTuples:
        if one:
            heads = '</th><th class="tf">'.join(
                headerTypes.get(i, f"column {i}") for i in range(len(headerTypes))
            )
            html.append(
                f'<tr class="tf {ltr}">'
                f'<th class="tf {ltr}">n{passageHead}</th>'
                f'<th class="tf {ltr}">{heads}</th>'
                f"</tr>"
            )
            one = False
        html.append(
            plainTuple(
                app,
                tup,
                seq=i,
                item=item,
                position=None,
                opened=False,
                _asString=True,
                skipCols=skipCols,
                **newOptions,
            )
        )
    html = "<table>" + "\n".join(html) + "</table>"

    if _browse or _asString:
        return html
    dh(html, inNb=inNb)


def plainTuple(
    app,
    tup,
    seq=None,
    item=RESULT,
    position=None,
    opened=False,
    _asString=False,
    **options,
):
    """Display the plain text of a tuple of nodes.

    Displays the material that corresponds to a tuple of nodes
    as a row of cells,
    each displaying a member of the tuple by means of `plain`.

    Parameters
    ----------
    tup: iterable of integer
        The members of the tuple can be arbitrary nodes.
    seq: integer, optional None
        an arbitrary number which will be displayed in the first cell.
        This prepares the way for displaying query results, which come as
        a sequence of tuples of nodes.
        If None, no such number is displayed in the heading.
    item: string, optional result
        A name for the tuple: it could be a result, or a chapter, or a line.
    position: integer, optional None
        Which position counts as the focus position.
        If *seq* equals *position*, the tuple is in focus.
        The effect is to add the CSS class *focus* to the output HTML
        for the row of this tuple.
    opened:  booolean, optional False
        Whether this tuple should be expandable to a `pretty` display.
        The normal output of this row will be wrapped in a

           <details><summary>plain</summary>pretty</details>`

        pattern, so that the user can click a triangle to switch between plain
        and pretty display.

        !!! caution
            This option has only effect when used in the TF browser.
    options: dict
        Display options, see `tf.advanced.options`.
    _asString: boolean, optional False
        Whether to deliver the result as a HTML string or to display it directly
        inside a notebook. When the TF-browser uses this function it needs the
        HTML string.

    Result
    ------
    html string or `None`
        Depending on *asString* above.
    """

    display = app.display

    if not display.check("plainTuple", options):
        return ""

    api = app.api
    F = api.F
    T = api.T
    N = api.N
    otypeRank = N.otypeRank
    fOtypev = F.otype.v
    _browse = app._browse
    inNb = app.inNb

    dContext = display.distill(options)
    condensed = dContext.condensed
    condenseType = dContext.condenseType
    colorMap = dContext.colorMap
    highlights = dContext.highlights
    withPassage = dContext.withPassage
    skipCols = dContext.skipCols
    showMath = dContext.showMath

    if condensed:
        skipCols = set()

    ltr = _getLtr(app, dContext) or "ltr"

    if withPassage is True:
        passageNode = _getRefMember(otypeRank, fOtypev, tup, dContext)
        passageRef = (
            ""
            if passageNode is None
            else app._sectionLink(passageNode)
            if _browse
            else app.webLink(passageNode, _asString=True)
        )
        passageRef = (
            f"""<span class="tfsechead {ltr}">"""
            f"""<span class="ltr">{passageRef}</span></span>"""
        )
    else:
        passageRef = ""

    newOptions = display.consume(options, "withPassage")
    newOptionsH = display.consume(options, "withPassage", "highlights")

    highlights = getTupleHighlights(api, tup, highlights, colorMap, condenseType)

    if _browse:
        prettyRep = (
            prettyTuple(app, tup, seq=seq, withPassage=False, **newOptions)
            if opened
            else ""
        )
        current = "focus" if seq is not None and seq == position else ""
        attOpen = "open " if opened else ""
        tupSeq = ",".join(str(n) for n in tup)
        if withPassage is True:
            sparts = T.sectionFromNode(passageNode, fillup=True)
            passageAtt = " ".join(
                f'sec{i}="{sparts[i] if i < len(sparts) else ""}"' for i in range(3)
            )
        else:
            passageAtt = ""

        plainRep = "".join(
            ""
            if i + 1 in skipCols
            else (
                '<span class="col">'
                + mdEsc(
                    app.plain(
                        n,
                        _inTuple=True,
                        withPassage=_doPassage(dContext, i),
                        highlights=highlights,
                        **newOptionsH,
                    ),
                    math=showMath,
                )
                + "</span>"
            )
            for (i, n) in enumerate(tup)
        )
        seqNo = -1 if seq is None else seq
        seqRep = (
            "" if seq is None else f'<a href="#" class="sq" tup="{tupSeq}">{seq}</a>'
        )
        html = (
            f'<details class="pretty dtrow {current}" seq="{seqNo}" {attOpen}>'
            f"<summary>"
            f'<a href="#" class="pq fa fa-solar-panel fa-xs"'
            f' title="show in context" {passageAtt}></a>'
            f"{seqRep}"
            f" {passageRef} {plainRep}"
            f"</summary>"
            f'<div class="pretty">{prettyRep}</div>'
            f"</details>"
        )
        return html

    html = [] if seq is None else [str(seq)]
    if withPassage is True:
        html.append(passageRef)
    for (i, n) in enumerate(tup):
        html.append(
            ""
            if i + 1 in skipCols
            else app.plain(
                n,
                _inTuple=True,
                _asString=True,
                withPassage=_doPassage(dContext, i),
                highlights=highlights,
                **newOptionsH,
            )
        )
    html = (
        f'<tr class="tf {ltr}"><td class="tf {ltr}">'
        + f'</td><td class="tf {ltr}">'.join(html)
        + "</td></tr>"
    )
    if _asString:
        return html

    passageHead = f'</th><th class="tf {ltr}">p' if withPassage is True else ""
    head = (
        (
            f'<tr class="tf {ltr}"><th class="tf {ltr}">n{passageHead}</th>'
            f'<th class="tf {ltr}">'
        )
        + f'</th><th class="tf {ltr}">'.join(fOtypev(n) for n in tup)
        + "</th></tr>"
    )
    html = "<table>" + head + "".join(html) + "</table>"

    dh(html, inNb=inNb)


def plain(app, n, _inTuple=False, _asString=False, explain=False, **options):
    """Display the plain text of a node.

    Displays the material that corresponds to a node in a compact way.
    Nodes with little content will be represented by their text content,
    nodes with large content will be represented by an identifying label.

    Parameters
    ----------
    n: integer
        Node
    options: dict
        Display options, see `tf.advanced.options`.
    _inTuple: boolean, optional False
        Whether the result is meant too end up in a table cell produced by
        `plainTuple`. In that case some extra node types count as big and will
        not be displayed in full.
    _asString: boolean, optional False
        Whether to deliver the result as a HTML string or to display it directly
        inside a notebook. When the TF-browser uses this function it needs the
        HTML string.
    explain: boolean, optional False
        Whether to print a trace of which nodes have been visited and how these
        calls have contributed to the end result.

    Result
    ------
    html string or `None`
        Depending on `_asString` above.
    """

    return render(app, False, n, _inTuple, _asString, explain, **options)


# PRETTY and FRIENDS


def show(app, tuples, _asString=False, **options):
    """Displays an iterable of tuples of nodes.

    The elements of the list are displayed by `A.prettyTuple()`.

    !!! hint "condense, condenseType"
        You can condense the list first to containers of `condenseType`,
        before displaying the list.
        Pass the display parameters `condense` and `condenseType`.
        See `tf.advanced.options`.

    Parameters
    ----------
    tuples: iterable of tuples of integer
        The integers are the nodes, together they form a table.
    _asString: boolean, optional False
        Whether to deliver the result as a HTML string or to display it directly
        inside a notebook. When the TF-browser uses this function it needs the
        HTML string.
    options: dict
        Display options, see `tf.advanced.options`.

    Result
    ------
    html string or `None`
        When used for the TF browser (`app._browse` is true),
        or when `_asString` is True, the result is returned
        as HTML. Otherwise the result is directly displayed in a notebook.
    """

    display = app.display

    if not display.check("show", options):
        return ""

    _browse = app._browse
    inNb = app.inNb
    asString = _browse or _asString

    dContext = display.distill(options)
    end = dContext.end
    start = dContext.start
    condensed = dContext.condensed
    condenseType = dContext.condenseType

    api = app.api
    F = api.F

    item = condenseType if condensed else RESULT

    if condensed:
        tuples = condense(api, tuples, condenseType, multiple=True)

    html = []

    for (i, tup) in tupleEnum(tuples, start, end, LIMIT_SHOW, item, inNb):
        item = F.otype.v(tup[0]) if condensed and condenseType else RESULT
        thisResult = prettyTuple(
            app,
            tup,
            seq=i,
            item=item,
            _asString=asString,
            **options,
        )
        if asString:
            html.append(thisResult)

    if asString:
        return "".join(html)


def prettyTuple(app, tup, seq=None, _asString=False, item=RESULT, **options):
    """Displays the material that corresponds to a tuple of nodes in a graphical way.

    The member nodes of the tuple will be collected into containers, which
    will be displayed with `pretty()`, and the nodes of the tuple
    will be highlighted in the containers.

    Parameters
    ----------
    tup: iterable of integer
        The members of the tuple can be arbitrary nodes.
    seq: integer, optional None
        an arbitrary number which will be displayed in the heading.
        This prepares the way for displaying query results, which come as
        a sequence of tuples of nodes.
        If None, no such number is displayed in the heading.
    item: string, optional result
        A name for the tuple: it could be a result, or a chapter, or a line.
    _asString: boolean, optional False
        Whether to deliver the result as a HTML string or to display it directly
        inside a notebook. When the TF-browser uses this function it needs the
        HTML string.
    options: dict
        Display options, see `tf.advanced.options`.

    Result
    ------
    html string or `None`
        When used for the TF browser (`app._browse` is true),
        or when `_asString` is True, the result is returned
        as HTML. Otherwise the result is directly displayed in a notebook.
    """

    display = app.display

    if not display.check("prettyTuple", options):
        return ""

    dContext = display.distill(options)
    colorMap = dContext.colorMap
    highlights = dContext.highlights
    condenseType = dContext.condenseType
    condensed = dContext.condensed

    _browse = app._browse
    inNb = app.inNb
    asString = _browse or _asString

    if len(tup) == 0:
        if asString:
            return ""
        else:
            return

    api = app.api
    N = api.N
    sortKey = N.sortKey

    containers = {tup[0]} if condensed else condenseSet(api, tup, condenseType)
    highlights = getTupleHighlights(api, tup, highlights, colorMap, condenseType)
    seqRep = "" if seq is None else f" <i>{seq}</i>"

    if not asString:
        dh(f"<p><b>{item}</b>{seqRep}", inNb=inNb)
    if asString:
        html = []
    for t in sorted(containers, key=sortKey):
        h = app.pretty(
            t,
            highlights=highlights,
            **display.consume(options, "highlights"),
        )
        if asString:
            html.append(h)
    if asString:
        return "".join(html)


def pretty(app, n, explain=False, _asString=False, **options):
    """Displays the material that corresponds to a node in a graphical way.

    The internal structure of the nodes that are involved is also revealed.
    In addition, extra features and their values are displayed with the nodes.

    !!! hint "Controlling pretty displays"
        The following `tf.advanced.options`
        are particularly relevant to pretty displays:

        * `condenseType`: the standard container to display nodes in;
        * `full`: whether to display a reference to the material or the material itself;
        * `extraFeatures`: additional node/edge features to  display
        * `edgeFeatures`: which edge features maybe displayed
        * `edgeHighlights`: highlight specs for edges
        * `tupleFeatures`: additional features to  display (primarily for `export`).

    Parameters
    ----------
    n: integer
        Node
    options: dict
        Display options, see `tf.advanced.options`.
    explain: boolean, optional False
        Whether to print a trace of which nodes have been visited and how these
        calls have contributed to the end result.
    asString: boolean, optional False
        If True, the result is returned as string

    Result
    ------
    html string or `None`
        When used for the TF browser (`app._browse` is true),
        or when `_asString` is True, the result is returned
        as HTML.
        Otherwise the result is directly displayed in a notebook.
    """

    return render(app, True, n, False, _asString, explain, **options)


def _getRefMember(otypeRank, fOtypev, tup, dContext):
    minRank = None
    minN = None
    for n in tup:
        nType = fOtypev(n)
        rank = otypeRank[nType]
        if minRank is None or rank < minRank:
            minRank = rank
            minN = n
            if minRank == 0:
                break

    return (tup[0] if tup else None) if minN is None else minN


def _doPassage(dContext, i):
    withPassage = dContext.withPassage
    return withPassage is not True and withPassage and i + 1 in withPassage

Functions

def displayApi(app, silent='auto')

Produce the display API.

The display API provides methods to generate styled representations of pieces of corpus texts in their relevant structures. The main end-user functions are plain()(node) and pretty()(node).

plain() focuses on the plain text, pretty() focuses on structure and feature display.

Related are plainTuple() and prettyTuple() that work for tuples instead of nodes.

And further there are show() and table(), that work with iterables of tuples of nodes (e.g. query results).

Parameters

app : obj
The high-level API object
silent : string, optional `tf.core.timestamp.SILENT_D``
See Timestamp Normally this parameter is taken from the app, but when we do an A.reuse() we force silent="deep".
Expand source code Browse git 
def displayApi(app, silent=SILENT_D):
    """Produce the display API.

    The display API provides methods to generate styled representations
    of pieces of corpus texts in their relevant structures.
    The main end-user functions are `plain(node)` and `pretty(node)`.

    `plain()` focuses on the plain text, `pretty()` focuses on structure
    and feature display.

    Related are `plainTuple()` and `prettyTuple()` that work for tuples
    instead of nodes.

    And further there are `show()` and `table()`, that work
    with iterables of tuples of nodes (e.g. query results).

    Parameters
    ----------
    app: obj
        The high-level API object
    silent: string, optional tf.core.timestamp.SILENT_D`
        See `tf.core.timestamp.Timestamp`
        Normally this parameter is taken from the app,
        but when we do an `A.reuse()` we force `silent="deep"`.
    """

    silent = silentConvert(silent)
    app.export = types.MethodType(export, app)
    app.table = types.MethodType(table, app)
    app.plainTuple = types.MethodType(plainTuple, app)
    app.plain = types.MethodType(plain, app)
    app.show = types.MethodType(show, app)
    app.prettyTuple = types.MethodType(prettyTuple, app)
    app.pretty = types.MethodType(pretty, app)
    app.unravel = types.MethodType(unravel, app)
    app.loadCss = types.MethodType(loadCss, app)
    app.getCss = types.MethodType(getCss, app)
    app.displayShow = types.MethodType(displayShow, app)
    app.displaySetup = types.MethodType(displaySetup, app)
    app.displayReset = types.MethodType(displayReset, app)

    app.display = Options(app)
    if not app._browse:
        app.loadCss()
def displayReset(app, *options)

Restore display parameters to their defaults.

Reset the given display parameters to their default value and let the others retain their current value.

So you can reset the display parameters selectively.

Parameters

options : list, optional []
If present, only restore these options to their defaults. Otherwise, restore all display settings.
Expand source code Browse git 
def displayReset(app, *options):
    """Restore display parameters to their defaults.

    Reset the given display parameters to their default value and let the others
    retain their current value.

    So you can reset the display parameters selectively.

    Parameters
    ----------
    options: list, optional []
        If present, only restore these options to their defaults.
        Otherwise, restore all display settings.
    """

    display = app.display

    display.reset(*options)
def displaySetup(app, **options)

Set up all display parameters.

Shows current values of display parameters and/or assigns working values to display parameters. All subsequent calls to display functions such as plain() and pretty() will use these values, unless they themselves are passed overriding values as arguments.

These working values remain in effect until a new call to displaySetup() assigns new values, or a call to displayReset() resets the values to the defaults.

show current values

The defaults themselves come from the corpus settings, which are influenced by its config.yaml file, if it exists. See tf.advanced.settings. You can show the current values by means of displayShow().

Parameters

show : keys
Options of which the current value will be shown.
options : key-values
Explicit values for selected options that act as overrides of the defaults.

See Also

tf.advanced.settings
options allowed in config.yaml
tf.advanced.options
all available display options
Expand source code Browse git 
def displaySetup(app, **options):
    """Set up all display parameters.

    Shows current values of display parameters and/or
    assigns working values to display parameters.
    All subsequent calls to display functions such as `plain` and `pretty`
    will use these values, unless they themselves are passed overriding
    values as arguments.

    These working values remain in effect until a new call to `displaySetup()`
    assigns new values, or a call to `displayReset()` resets the values to the
    defaults.

    !!! hint "show current values"
        The defaults themselves come from the corpus settings, which are influenced
        by its `config.yaml` file, if it exists. See `tf.advanced.settings`.
        You can show the current values by means of `displayShow`.

    Parameters
    ----------
    show: keys
        Options of which the current value will be shown.
    options: key-values
        Explicit values for selected options that act as overrides of the defaults.

    See Also
    --------
    tf.advanced.settings: options allowed in `config.yaml`
    tf.advanced.options: all available display options
    """

    display = app.display

    display.setup(**options)
def displayShow(app, *options)

Show display parameters.

Shows current values of all or selected display parameters.

Parameters

options : keys
Options of which the current value will be shown. If no option is passes, all options will be shown.

See Also

tf.advanced.settings
options allowed in config.yaml
Expand source code Browse git 
def displayShow(app, *options):
    """Show display parameters.

    Shows current values of all or selected display parameters.

    Parameters
    ----------
    options: keys
        Options of which the current value will be shown.
        If no option is passes, all options will be shown.

    See Also
    --------
    tf.advanced.settings: options allowed in `config.yaml`
    """

    inNb = app.inNb
    _browse = app._browse
    display = app.display
    display.setup()
    data = display.current
    return showDict("<b>current display options</b>", data, _browse, inNb, *options)
def export(app, tuples, toDir=None, toFile='results.tsv', **options)

Exports an iterable of tuples of nodes to an Excel friendly .tsv file.

Examples

See for detailed examples the exportExcel (etcbc/bhsa) and exportExcel (Nino-cunei/oldbabylonian) notebooks.

Parameters

tuples : iterable of tuples of integer
The integers are the nodes, together they form a table. The table maybe uniform or not uniform, which matters to the output. See below.
toDir : string, optional None

The destination directory for the exported file. By default it is your Downloads folder.

If the directory does not exist, it will be created.

toFile : boolean, optional results.tsv
The name of the exported file.
options : dict

Display options, see tf.advanced.options.

details

  • condensed Has no effect. Exports to Excel will not be condensed, because the number of columns is variable per row in that case. Excel itself has nice possibilities for grouping rows. You can also filter your tuples by means of hand-coding before exporting them.
  • condenseType The condense type influences for which nodes the full text will be exported. Only nodes that are "smaller" than the condense type will have their full text exported.
  • fmt This display parameter specifies the text format for any nodes that trigger a text value to be exported.
  • tupleFeatures This is a display parameter that steers which features are exported with each member of the tuples in the list.

If the iterable of tuples are the results of a query you have just run, then an appropriate call to displaySetup(tupleFeatures=...) has already been issued, so you can just say:

 results = A.search(query)`
 A.export(results)`

Results

A file toFile in directory toDir with the following content:

There will be a row for each tuple.

If the input tuples are uniform, i.e. each tuple has the same number of nodes, and nodes in the same column have the same node types, then the result table has the following layout:

The columns are:

  • R the sequence number of the result tuple in the result list
  • S1 S2 S3 the section as book, chapter, verse, in separate columns; the section is the section of the first non book/chapter node in the tuple
  • NODEi TYPEi the node and its type, for each node i in the result tuple
  • TEXTi the full text of node i, if the node type admits a concise text representation; the criterion is whether the node type has a type not bigger than the default condense type, which is app specific. If you pass an explicit condenseType=xxx as display parameter, then this is the reference condenseType on which the decision is based.
  • XFi the value of extra feature XF for node i, where these features have been declared by a previous displaySetup(tupleFeatures=…)`

If the input tuples are not uniform, the layout is more primitive. There will be no header column, because the number of columns may vary per row. A row contains the successive information of all nodes in a tuple. Depending of the type of each node you get a number of columns of section information. Then follow two columns with the node and the node type. Depending on the type of the node, there follows a column with the text of the node. No additional features are produced.

Encoding

The exported file is written in the utf_16_le encoding. This ensures that Excel can open it without hassle, even if there are non-latin characters inside.

When you want to read the exported file programmatically, open it with encoding=utf_16.

Quotes

If the text of a field starts with a single or double quote, we insert a backslash in front of it, otherwise programs like Excel and Numbers will treat it in a special way.

Expand source code Browse git 
def export(app, tuples, toDir=None, toFile="results.tsv", **options):
    """Exports an iterable of tuples of nodes to an Excel friendly `.tsv` file.

    !!! hint "Examples"
        See for detailed examples the
        [exportExcel (etcbc/bhsa)](https://nbviewer.jupyter.org/github/etcbc/bhsa/blob/master/tutorial/exportExcel.ipynb)
        and
        [exportExcel (Nino-cunei/oldbabylonian)](https://nbviewer.jupyter.org/github/Nino-cunei/oldbabylonian/blob/master/tutorial/exportExcel.ipynb)
        notebooks.

    Parameters
    ----------
    tuples: iterable of tuples of integer
        The integers are the nodes, together they form a table.
        The table maybe uniform or not uniform,
        which matters to the output. See below.
    toDir: string, optional None
        The destination directory for the exported file.
        By default it is your Downloads folder.

        If the directory does not exist, it will be created.
    toFile: boolean, optional results.tsv
        The name of the exported file.
    options: dict
        Display options, see `tf.advanced.options`.

        !!! note "details"
            * `condensed`
              Has no effect. Exports to Excel will not be condensed, because the
              number of columns is variable per row in that case.
              Excel itself has nice possibilities for grouping rows.
              You can also filter your tuples by means of hand-coding
              before exporting them.
            * `condenseType`
              The condense type influences for which nodes
              the full text will be exported.
              Only nodes that are "smaller" than the condense type will have
              their full text exported.
            * `fmt`
              This display parameter specifies the text format for any nodes
              that trigger a text value to be exported.
            * `tupleFeatures`
              This is a display parameter that steers which features are exported
              with each member of the tuples in the list.

              If the iterable of tuples are the results of a query you have just
              run, then an appropriate call to `displaySetup(tupleFeatures=...)`
              has already been issued, so you can just say:

                 results = A.search(query)`
                 A.export(results)`

    Results
    -------
    A file *toFile* in directory *toDir* with the following content:

    There will be a row for each tuple.

    If the input tuples are *uniform*, i.e. each tuple has the
    same number of nodes, and nodes in the same column have the same node types,
    then the result table has the following layout:

    The columns are:

    * **R** the sequence number of the result tuple in the result list
    * **S1 S2 S3** the section as book, chapter, verse, in separate columns;
      the section is the section of the first non book/chapter node in the tuple
    * **NODEi TYPEi** the node and its type,
      for each node **i** in the result tuple
    * **TEXTi** the full text of node **i**,
      if the node type admits a concise text representation;
      the criterion is whether the node type has a type not bigger than the
      default condense type, which is app specific.
      If you pass an explicit `condenseType=`*xxx* as display parameter,
      then this is the reference condenseType on which the decision is based.
    * **XFi** the value of extra feature **XF** for node **i**,
      where these features have been declared by a previous
      displaySetup(tupleFeatures=...)`

    If the input tuples are not uniform, the layout is more primitive.
    There will be no header column, because the number of columns may vary per row.
    A row contains the successive information of all nodes in a tuple.
    Depending of the type of each node you get a number of columns of section information.
    Then follow two columns with the node and the node type.
    Depending on the type of the node, there follows a column with the text of the node.
    No additional features are produced.

    !!! caution "Encoding"
        The exported file is written in the `utf_16_le` encoding.
        This ensures that Excel can open it without hassle, even if there
        are non-latin characters inside.

        When you want to read the exported file programmatically,
        open it with `encoding=utf_16`.

    !!! caution "Quotes"
        If the text of a field starts with a single or double quote,
        we insert a backslash in front of it, otherwise programs like
        Excel and Numbers will treat it in a special way.
    """

    display = app.display

    if not display.check("table", options):
        return ""

    dContext = display.distill(options)
    fmt = dContext.fmt
    condenseType = dContext.condenseType
    tupleFeatures = dContext.tupleFeatures

    toDir = ex(DOWNLOADS) if toDir is None else ex(toDir)
    dirMake(toDir)
    toPath = f"{toDir}/{toFile}"

    resultsX = getRowsX(app, tuples, tupleFeatures, condenseType, fmt=fmt)

    with open(toPath, "w", encoding="utf_16_le") as fh:
        fh.write(
            "\ufeff"
            + "".join(
                ("\t".join("" if t is None else tsvEsc(t) for t in tup) + "\n")
                for tup in resultsX
            )
        )
def getCss(app)

Export the CSS for this app.

We collect the complete CSS code from Text-Fabric and the app, and we add a piece to override some of the notebook CSS for tables, which specify a table layout with right aligned cell contents by default.

Returns

None | string
CSS code, including a surrounding <style> element.
Expand source code Browse git 
def getCss(app):
    """Export the CSS for this app.

    We collect the complete CSS code from Text-Fabric and the app,
    and we add a piece to override some of the notebook CSS for tables,
    which specify a table layout with right aligned cell contents by default.

    Returns
    -------
    None | string
        CSS code, including a surrounding `<style>` element.
    """

    aContext = app.context
    appCss = aContext.css

    cssPath = f"{dirNm(dirNm(abspath(__file__)))}" f"{SERVER_DISPLAY_BASE}"
    cssPath = normpath(cssPath)
    genericCss = ""
    for cssFile in SERVER_DISPLAY:
        with open(f"{cssPath}/{cssFile}", encoding="utf8") as fh:
            genericCss += fh.read()

    tableCss = (
        "tr.tf.ltr, td.tf.ltr, th.tf.ltr { text-align: left ! important;}\n"
        "tr.tf.rtl, td.tf.rtl, th.tf.rtl { text-align: right ! important;}\n"
    )
    return f"<style>{tableCss}{genericCss}{appCss}</style>"
def loadCss(app)

Load the CSS for this app.

If we are in the TF-browser, the generic CSS is already provided, we only need to respond with the app-specific CSS: we return it as string. The flag app._browse is used to steer us into this case.

Otherwise, if we are in a notebook, we collect the complete CSS code from Text-Fabric and the app, and we add a piece to override some of the notebook CSS for tables, which specify a table layout with right aligned cell contents by default.

We then load the resulting CSS into the notebook.

Otherwise, we do nothing.

Returns

None | string
When in the TF browser, the app-dependent CSS is returned. Otherwise, nothing is returned, but the complete CSS is displayed as HTML in the notebook.
Expand source code Browse git 
def loadCss(app):
    """Load the CSS for this app.

    If we are in the TF-browser, the generic CSS is already provided, we only
    need to respond with the app-specific CSS: we return it as string.
    The flag `app._browse` is used to steer us into this case.

    Otherwise, if we are in a notebook,
    we collect the complete CSS code from Text-Fabric and the app,
    and we add a piece to override some of the notebook CSS for tables,
    which specify a table layout with right aligned cell contents by default.

    We then load the resulting CSS into the notebook.

    Otherwise, we do nothing.

    Returns
    -------
    None | string
        When in the TF browser, the app-dependent CSS is returned.
        Otherwise, nothing is returned, but the complete CSS is displayed as HTML in the notebook.
    """

    _browse = app._browse
    aContext = app.context
    appCss = aContext.css

    if _browse:
        return appCss

    if not app.inNb:
        return

    css = getCss(app)
    dh(css)
    dh(
        dedent(
            """
            <script>
            globalThis.copyChar = (el, c) => {
                for (const el of document.getElementsByClassName('ccon')) {
                    el.className = 'ccoff'
                }
                el.className = 'ccon'
                navigator.clipboard.writeText(String.fromCharCode(c))
            }
            </script>
            """
        )
    )
def plain(app, n, explain=False, **options)

Display the plain text of a node.

Displays the material that corresponds to a node in a compact way. Nodes with little content will be represented by their text content, nodes with large content will be represented by an identifying label.

Parameters

n : integer
Node
options : dict
Display options, see tf.advanced.options.
_inTuple : boolean, optional False
Whether the result is meant too end up in a table cell produced by plainTuple(). In that case some extra node types count as big and will not be displayed in full.
_asString : boolean, optional False
Whether to deliver the result as a HTML string or to display it directly inside a notebook. When the TF-browser uses this function it needs the HTML string.
explain : boolean, optional False
Whether to print a trace of which nodes have been visited and how these calls have contributed to the end result.

Result

html string or None Depending on _asString above.

Expand source code Browse git 
def plain(app, n, _inTuple=False, _asString=False, explain=False, **options):
    """Display the plain text of a node.

    Displays the material that corresponds to a node in a compact way.
    Nodes with little content will be represented by their text content,
    nodes with large content will be represented by an identifying label.

    Parameters
    ----------
    n: integer
        Node
    options: dict
        Display options, see `tf.advanced.options`.
    _inTuple: boolean, optional False
        Whether the result is meant too end up in a table cell produced by
        `plainTuple`. In that case some extra node types count as big and will
        not be displayed in full.
    _asString: boolean, optional False
        Whether to deliver the result as a HTML string or to display it directly
        inside a notebook. When the TF-browser uses this function it needs the
        HTML string.
    explain: boolean, optional False
        Whether to print a trace of which nodes have been visited and how these
        calls have contributed to the end result.

    Result
    ------
    html string or `None`
        Depending on `_asString` above.
    """

    return render(app, False, n, _inTuple, _asString, explain, **options)
def plainTuple(app, tup, seq=None, item='result', position=None, opened=False, **options)

Display the plain text of a tuple of nodes.

Displays the material that corresponds to a tuple of nodes as a row of cells, each displaying a member of the tuple by means of plain().

Parameters

tup : iterable of integer
The members of the tuple can be arbitrary nodes.
seq : integer, optional None
an arbitrary number which will be displayed in the first cell. This prepares the way for displaying query results, which come as a sequence of tuples of nodes. If None, no such number is displayed in the heading.
item : string, optional result
A name for the tuple: it could be a result, or a chapter, or a line.
position : integer, optional None
Which position counts as the focus position. If seq equals position, the tuple is in focus. The effect is to add the CSS class focus to the output HTML for the row of this tuple.
opened :  booolean, optional False

Whether this tuple should be expandable to a pretty() display. The normal output of this row will be wrapped in a

plainpretty
`

pattern, so that the user can click a triangle to switch between plain and pretty display.

Caution

This option has only effect when used in the TF browser.

options : dict
Display options, see tf.advanced.options.
_asString : boolean, optional False
Whether to deliver the result as a HTML string or to display it directly inside a notebook. When the TF-browser uses this function it needs the HTML string.

Result

html string or None Depending on asString above.

Expand source code Browse git 
def plainTuple(
    app,
    tup,
    seq=None,
    item=RESULT,
    position=None,
    opened=False,
    _asString=False,
    **options,
):
    """Display the plain text of a tuple of nodes.

    Displays the material that corresponds to a tuple of nodes
    as a row of cells,
    each displaying a member of the tuple by means of `plain`.

    Parameters
    ----------
    tup: iterable of integer
        The members of the tuple can be arbitrary nodes.
    seq: integer, optional None
        an arbitrary number which will be displayed in the first cell.
        This prepares the way for displaying query results, which come as
        a sequence of tuples of nodes.
        If None, no such number is displayed in the heading.
    item: string, optional result
        A name for the tuple: it could be a result, or a chapter, or a line.
    position: integer, optional None
        Which position counts as the focus position.
        If *seq* equals *position*, the tuple is in focus.
        The effect is to add the CSS class *focus* to the output HTML
        for the row of this tuple.
    opened:  booolean, optional False
        Whether this tuple should be expandable to a `pretty` display.
        The normal output of this row will be wrapped in a

           <details><summary>plain</summary>pretty</details>`

        pattern, so that the user can click a triangle to switch between plain
        and pretty display.

        !!! caution
            This option has only effect when used in the TF browser.
    options: dict
        Display options, see `tf.advanced.options`.
    _asString: boolean, optional False
        Whether to deliver the result as a HTML string or to display it directly
        inside a notebook. When the TF-browser uses this function it needs the
        HTML string.

    Result
    ------
    html string or `None`
        Depending on *asString* above.
    """

    display = app.display

    if not display.check("plainTuple", options):
        return ""

    api = app.api
    F = api.F
    T = api.T
    N = api.N
    otypeRank = N.otypeRank
    fOtypev = F.otype.v
    _browse = app._browse
    inNb = app.inNb

    dContext = display.distill(options)
    condensed = dContext.condensed
    condenseType = dContext.condenseType
    colorMap = dContext.colorMap
    highlights = dContext.highlights
    withPassage = dContext.withPassage
    skipCols = dContext.skipCols
    showMath = dContext.showMath

    if condensed:
        skipCols = set()

    ltr = _getLtr(app, dContext) or "ltr"

    if withPassage is True:
        passageNode = _getRefMember(otypeRank, fOtypev, tup, dContext)
        passageRef = (
            ""
            if passageNode is None
            else app._sectionLink(passageNode)
            if _browse
            else app.webLink(passageNode, _asString=True)
        )
        passageRef = (
            f"""<span class="tfsechead {ltr}">"""
            f"""<span class="ltr">{passageRef}</span></span>"""
        )
    else:
        passageRef = ""

    newOptions = display.consume(options, "withPassage")
    newOptionsH = display.consume(options, "withPassage", "highlights")

    highlights = getTupleHighlights(api, tup, highlights, colorMap, condenseType)

    if _browse:
        prettyRep = (
            prettyTuple(app, tup, seq=seq, withPassage=False, **newOptions)
            if opened
            else ""
        )
        current = "focus" if seq is not None and seq == position else ""
        attOpen = "open " if opened else ""
        tupSeq = ",".join(str(n) for n in tup)
        if withPassage is True:
            sparts = T.sectionFromNode(passageNode, fillup=True)
            passageAtt = " ".join(
                f'sec{i}="{sparts[i] if i < len(sparts) else ""}"' for i in range(3)
            )
        else:
            passageAtt = ""

        plainRep = "".join(
            ""
            if i + 1 in skipCols
            else (
                '<span class="col">'
                + mdEsc(
                    app.plain(
                        n,
                        _inTuple=True,
                        withPassage=_doPassage(dContext, i),
                        highlights=highlights,
                        **newOptionsH,
                    ),
                    math=showMath,
                )
                + "</span>"
            )
            for (i, n) in enumerate(tup)
        )
        seqNo = -1 if seq is None else seq
        seqRep = (
            "" if seq is None else f'<a href="#" class="sq" tup="{tupSeq}">{seq}</a>'
        )
        html = (
            f'<details class="pretty dtrow {current}" seq="{seqNo}" {attOpen}>'
            f"<summary>"
            f'<a href="#" class="pq fa fa-solar-panel fa-xs"'
            f' title="show in context" {passageAtt}></a>'
            f"{seqRep}"
            f" {passageRef} {plainRep}"
            f"</summary>"
            f'<div class="pretty">{prettyRep}</div>'
            f"</details>"
        )
        return html

    html = [] if seq is None else [str(seq)]
    if withPassage is True:
        html.append(passageRef)
    for (i, n) in enumerate(tup):
        html.append(
            ""
            if i + 1 in skipCols
            else app.plain(
                n,
                _inTuple=True,
                _asString=True,
                withPassage=_doPassage(dContext, i),
                highlights=highlights,
                **newOptionsH,
            )
        )
    html = (
        f'<tr class="tf {ltr}"><td class="tf {ltr}">'
        + f'</td><td class="tf {ltr}">'.join(html)
        + "</td></tr>"
    )
    if _asString:
        return html

    passageHead = f'</th><th class="tf {ltr}">p' if withPassage is True else ""
    head = (
        (
            f'<tr class="tf {ltr}"><th class="tf {ltr}">n{passageHead}</th>'
            f'<th class="tf {ltr}">'
        )
        + f'</th><th class="tf {ltr}">'.join(fOtypev(n) for n in tup)
        + "</th></tr>"
    )
    html = "<table>" + head + "".join(html) + "</table>"

    dh(html, inNb=inNb)
def pretty(app, n, explain=False, **options)

Displays the material that corresponds to a node in a graphical way.

The internal structure of the nodes that are involved is also revealed. In addition, extra features and their values are displayed with the nodes.

Controlling pretty displays

The following tf.advanced.options are particularly relevant to pretty displays:

  • condenseType: the standard container to display nodes in;
  • full: whether to display a reference to the material or the material itself;
  • extraFeatures: additional node/edge features to display
  • edgeFeatures: which edge features maybe displayed
  • edgeHighlights: highlight specs for edges
  • tupleFeatures: additional features to display (primarily for export()).

Parameters

n : integer
Node
options : dict
Display options, see tf.advanced.options.
explain : boolean, optional False
Whether to print a trace of which nodes have been visited and how these calls have contributed to the end result.
asString : boolean, optional False
If True, the result is returned as string

Result

html string or None When used for the TF browser (app._browse is true), or when _asString is True, the result is returned as HTML. Otherwise the result is directly displayed in a notebook.

Expand source code Browse git 
def pretty(app, n, explain=False, _asString=False, **options):
    """Displays the material that corresponds to a node in a graphical way.

    The internal structure of the nodes that are involved is also revealed.
    In addition, extra features and their values are displayed with the nodes.

    !!! hint "Controlling pretty displays"
        The following `tf.advanced.options`
        are particularly relevant to pretty displays:

        * `condenseType`: the standard container to display nodes in;
        * `full`: whether to display a reference to the material or the material itself;
        * `extraFeatures`: additional node/edge features to  display
        * `edgeFeatures`: which edge features maybe displayed
        * `edgeHighlights`: highlight specs for edges
        * `tupleFeatures`: additional features to  display (primarily for `export`).

    Parameters
    ----------
    n: integer
        Node
    options: dict
        Display options, see `tf.advanced.options`.
    explain: boolean, optional False
        Whether to print a trace of which nodes have been visited and how these
        calls have contributed to the end result.
    asString: boolean, optional False
        If True, the result is returned as string

    Result
    ------
    html string or `None`
        When used for the TF browser (`app._browse` is true),
        or when `_asString` is True, the result is returned
        as HTML.
        Otherwise the result is directly displayed in a notebook.
    """

    return render(app, True, n, False, _asString, explain, **options)
def prettyTuple(app, tup, seq=None, item='result', **options)

Displays the material that corresponds to a tuple of nodes in a graphical way.

The member nodes of the tuple will be collected into containers, which will be displayed with pretty(), and the nodes of the tuple will be highlighted in the containers.

Parameters

tup : iterable of integer
The members of the tuple can be arbitrary nodes.
seq : integer, optional None
an arbitrary number which will be displayed in the heading. This prepares the way for displaying query results, which come as a sequence of tuples of nodes. If None, no such number is displayed in the heading.
item : string, optional result
A name for the tuple: it could be a result, or a chapter, or a line.
_asString : boolean, optional False
Whether to deliver the result as a HTML string or to display it directly inside a notebook. When the TF-browser uses this function it needs the HTML string.
options : dict
Display options, see tf.advanced.options.

Result

html string or None When used for the TF browser (app._browse is true), or when _asString is True, the result is returned as HTML. Otherwise the result is directly displayed in a notebook.

Expand source code Browse git 
def prettyTuple(app, tup, seq=None, _asString=False, item=RESULT, **options):
    """Displays the material that corresponds to a tuple of nodes in a graphical way.

    The member nodes of the tuple will be collected into containers, which
    will be displayed with `pretty()`, and the nodes of the tuple
    will be highlighted in the containers.

    Parameters
    ----------
    tup: iterable of integer
        The members of the tuple can be arbitrary nodes.
    seq: integer, optional None
        an arbitrary number which will be displayed in the heading.
        This prepares the way for displaying query results, which come as
        a sequence of tuples of nodes.
        If None, no such number is displayed in the heading.
    item: string, optional result
        A name for the tuple: it could be a result, or a chapter, or a line.
    _asString: boolean, optional False
        Whether to deliver the result as a HTML string or to display it directly
        inside a notebook. When the TF-browser uses this function it needs the
        HTML string.
    options: dict
        Display options, see `tf.advanced.options`.

    Result
    ------
    html string or `None`
        When used for the TF browser (`app._browse` is true),
        or when `_asString` is True, the result is returned
        as HTML. Otherwise the result is directly displayed in a notebook.
    """

    display = app.display

    if not display.check("prettyTuple", options):
        return ""

    dContext = display.distill(options)
    colorMap = dContext.colorMap
    highlights = dContext.highlights
    condenseType = dContext.condenseType
    condensed = dContext.condensed

    _browse = app._browse
    inNb = app.inNb
    asString = _browse or _asString

    if len(tup) == 0:
        if asString:
            return ""
        else:
            return

    api = app.api
    N = api.N
    sortKey = N.sortKey

    containers = {tup[0]} if condensed else condenseSet(api, tup, condenseType)
    highlights = getTupleHighlights(api, tup, highlights, colorMap, condenseType)
    seqRep = "" if seq is None else f" <i>{seq}</i>"

    if not asString:
        dh(f"<p><b>{item}</b>{seqRep}", inNb=inNb)
    if asString:
        html = []
    for t in sorted(containers, key=sortKey):
        h = app.pretty(
            t,
            highlights=highlights,
            **display.consume(options, "highlights"),
        )
        if asString:
            html.append(h)
    if asString:
        return "".join(html)
def show(app, tuples, **options)

Displays an iterable of tuples of nodes.

The elements of the list are displayed by A.prettyTuple().

condense, condenseType

You can condense the list first to containers of condenseType, before displaying the list. Pass the display parameters condense and condenseType. See tf.advanced.options.

Parameters

tuples : iterable of tuples of integer
The integers are the nodes, together they form a table.
_asString : boolean, optional False
Whether to deliver the result as a HTML string or to display it directly inside a notebook. When the TF-browser uses this function it needs the HTML string.
options : dict
Display options, see tf.advanced.options.

Result

html string or None When used for the TF browser (app._browse is true), or when _asString is True, the result is returned as HTML. Otherwise the result is directly displayed in a notebook.

Expand source code Browse git 
def show(app, tuples, _asString=False, **options):
    """Displays an iterable of tuples of nodes.

    The elements of the list are displayed by `A.prettyTuple()`.

    !!! hint "condense, condenseType"
        You can condense the list first to containers of `condenseType`,
        before displaying the list.
        Pass the display parameters `condense` and `condenseType`.
        See `tf.advanced.options`.

    Parameters
    ----------
    tuples: iterable of tuples of integer
        The integers are the nodes, together they form a table.
    _asString: boolean, optional False
        Whether to deliver the result as a HTML string or to display it directly
        inside a notebook. When the TF-browser uses this function it needs the
        HTML string.
    options: dict
        Display options, see `tf.advanced.options`.

    Result
    ------
    html string or `None`
        When used for the TF browser (`app._browse` is true),
        or when `_asString` is True, the result is returned
        as HTML. Otherwise the result is directly displayed in a notebook.
    """

    display = app.display

    if not display.check("show", options):
        return ""

    _browse = app._browse
    inNb = app.inNb
    asString = _browse or _asString

    dContext = display.distill(options)
    end = dContext.end
    start = dContext.start
    condensed = dContext.condensed
    condenseType = dContext.condenseType

    api = app.api
    F = api.F

    item = condenseType if condensed else RESULT

    if condensed:
        tuples = condense(api, tuples, condenseType, multiple=True)

    html = []

    for (i, tup) in tupleEnum(tuples, start, end, LIMIT_SHOW, item, inNb):
        item = F.otype.v(tup[0]) if condensed and condenseType else RESULT
        thisResult = prettyTuple(
            app,
            tup,
            seq=i,
            item=item,
            _asString=asString,
            **options,
        )
        if asString:
            html.append(thisResult)

    if asString:
        return "".join(html)
def table(app, tuples, **options)

Plain displays of an iterable of tuples of nodes in a table.

The list is displayed as a compact markdown table. Every row is prepended with the sequence number in the iterable, and then displayed by plainTuple()

condense, condenseType

You can condense the list first to containers of condenseType, before displaying the list. Pass the display parameters condense and condenseType. See tf.advanced.options.

Parameters

tuples : iterable of tuples of integer
The integers are the nodes, together they form a table.
options : dict
Display options, see tf.advanced.options.
_asString : boolean, optional False
Whether to deliver the result as a HTML string or to display it directly inside a notebook. When the TF-browser uses this function it needs the HTML string.
Expand source code Browse git 
def table(app, tuples, _asString=False, **options):
    """Plain displays of an iterable of tuples of nodes in a table.

    The list is displayed as a compact markdown table.
    Every row is prepended with the sequence number in the iterable,
    and then displayed by `plainTuple`

    !!! hint "condense, condenseType"
        You can condense the list first to containers of `condenseType`,
        before displaying the list.
        Pass the display parameters `condense` and `condenseType`.
        See `tf.advanced.options`.

    Parameters
    ----------
    tuples: iterable of tuples of integer
        The integers are the nodes, together they form a table.
    options: dict
        Display options, see `tf.advanced.options`.
    _asString: boolean, optional False
        Whether to deliver the result as a HTML string or to display it directly
        inside a notebook. When the TF-browser uses this function it needs the
        HTML string.
    """

    display = app.display

    if not display.check("table", options):
        return ""

    _browse = app._browse
    inNb = app.inNb

    api = app.api

    dContext = display.distill(options)
    end = dContext.end
    start = dContext.start
    withPassage = dContext.withPassage
    condensed = dContext.condensed
    condenseType = dContext.condenseType
    skipCols = dContext.skipCols

    ltr = _getLtr(app, dContext) or "ltr"

    item = condenseType if condensed else RESULT

    if condensed:
        tuples = condense(api, tuples, condenseType, multiple=True)
        skipCols = set()

    passageHead = f'</th><th class="tf {ltr}">p' if withPassage is True else ""

    html = []
    one = True

    newOptions = display.consume(options, "skipCols")

    theseTuples = tuple(tupleEnum(tuples, start, end, LIMIT_TABLE, item, inNb))
    headerTypes = getHeaderTypes(app, theseTuples)

    for (i, tup) in theseTuples:
        if one:
            heads = '</th><th class="tf">'.join(
                headerTypes.get(i, f"column {i}") for i in range(len(headerTypes))
            )
            html.append(
                f'<tr class="tf {ltr}">'
                f'<th class="tf {ltr}">n{passageHead}</th>'
                f'<th class="tf {ltr}">{heads}</th>'
                f"</tr>"
            )
            one = False
        html.append(
            plainTuple(
                app,
                tup,
                seq=i,
                item=item,
                position=None,
                opened=False,
                _asString=True,
                skipCols=skipCols,
                **newOptions,
            )
        )
    html = "<table>" + "\n".join(html) + "</table>"

    if _browse or _asString:
        return html
    dh(html, inNb=inNb)