Revision 9670183fbd0d1c8965f0247898067f575a178fc2 authored by Dirk Roorda on 06 July 2021, 15:18:23 UTC, committed by Dirk Roorda on 06 July 2021, 15:18:23 UTC
1 parent d5251b0
sections.py
"""Section
There is support for section headings.
Text-Fabric datasets may specify two kinds of sections in their
`otext.tf` configuration feature:
### Sections
At most three levels:
* level 1 is for big things, like books
* level 2 is for intermediate things, like chapters, that fit on one page or just
a few pages
* level 3 is for small things, such as lines.
Text-Fabric uses these levels in the Text-Fabric browser, to divide your corpus
into divisions that can conveniently be displayed to you in the browser.
### Structure
Any number of levels.
You can use them to divide your corpus into units that follow the logic of your corpus,
without regard for how they are to be displayed.
"""
import types
def sectionsApi(app):
app.nodeFromSectionStr = types.MethodType(nodeFromSectionStr, app)
app.sectionStrFromNode = types.MethodType(sectionStrFromNode, app)
app.structureStrFromNode = types.MethodType(structureStrFromNode, app)
app._sectionLink = types.MethodType(_sectionLink, app)
def nodeFromSectionStr(app, sectionStr, lang="en"):
"""Find the node of a section string.
Compare `tf.core.text.Text.nodeFromSection`.
Parameters
----------
sectionStr: string
Must be a valid section specficiation in the
language specified in *lang*.
The string may specify a section 0 level only (book/tablet), or
section 0 and 1 levels (book/tablet chapter/column),
or all levels
(book/tablet chapter/column verse/line).
!!! hint "examples"
Genesis
Genesis 1
Genesis 1:1
P005381
P005381 1
P005381 1:1
lang: string, optional `en`
The language assumed for the section parts,
as far as they are language dependent.
Must be a 2-letter language code.
Returns
-------
node | error: integer | string
Depending on what is passed, the result is a node of section level
0, 1, or 2.
If there is no such section heading, an error string is returned.
"""
api = app.api
T = api.T
aContext = app.context
sep1 = aContext.sectionSep1
sep2 = aContext.sectionSep2
msg = f'Not a valid passage: "{sectionStr}"'
msgi = '{} "{}" is not a number'
section = sectionStr.split(sep1)
if len(section) > 2:
return msg
elif len(section) == 2:
section2 = section[1].split(sep2)
if len(section2) > 2:
return msg
section = [section[0]] + section2
dataTypes = T.sectionFeatureTypes
sectionTypes = T.sectionTypes
sectionTyped = []
msgs = []
for (i, sectionPart) in enumerate(section):
if dataTypes[i] == "int":
try:
part = int(sectionPart)
except ValueError:
msgs.append(msgi.format(sectionTypes[i], sectionPart))
part = None
else:
part = sectionPart
sectionTyped.append(part)
if msgs:
return "\n".join(msgs)
sectionNode = T.nodeFromSection(sectionTyped, lang=lang)
if sectionNode is None:
return msg
return sectionNode
def sectionStrFromNode(app, n, lang="en", lastSlot=False, fillup=False):
"""The heading of a section to which a node belongs.
Compare `tf.core.text.Text.nodeFromSection`.
node: integer
The node from which we obtain a section specification.
lastSlot: boolean, optional `False`
Whether the reference node will be the last slot contained by the
`node` argument or the first node.
Otherwise it will be the first slot.
lang: string, optional `en`
The language assumed for the section parts,
as far as they are language dependent.
Must be a 2-letter language code.
fillup: boolean, optional `False`
Same as for `tf.core.text.Text.sectionTuple`.
Returns
-------
section heading:string
Corresponds to the reference node.
The result is built from the labels of the individual section levels,
with dummies for missing parts if *fillup* is true.
"""
api = app.api
T = api.T
aContext = app.context
sep1 = aContext.sectionSep1
sep2 = aContext.sectionSep2
seps = ("", sep1, sep2)
section = T.sectionFromNode(n, lang=lang, lastSlot=lastSlot, fillup=fillup)
return "".join(
"" if part is None else f"{seps[i]}{part}" for (i, part) in enumerate(section)
)
def structureStrFromNode(app, n):
"""The heading of a structure to which a node belongs.
Compare `tf.core.text.Text.headingFromNode`.
node: integer
The node from which we obtain a structure specification.
Returns
-------
structure heading:string
Corresponds to the first structure node containing the first slot of `n`.
The result is built from the labels of the individual section levels.
"""
api = app.api
T = api.T
struct = T.headingFromNode(n)
sep = ''
result = ''
for (i, part) in enumerate(struct):
if part is None:
continue
(nType, label) = part
result += f'{sep}<span class="nd">{nType}</span> {label}'
sep = ", "
return result
def _sectionLink(app, n, text=None, clsName=None):
newClsName = f'rwh {clsName or ""}'
return app.webLink(
n, clsName=newClsName, text=text, _asString=True, _noUrl=True
)
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