148 lines
4.4 KiB
Python
148 lines
4.4 KiB
Python
from panflute import *
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import tempfile
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import sys
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from jinja2 import Template, Environment, PackageLoader, select_autoescape
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import contextlib
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import io
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import hashlib
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from dateutil.parser import parse as dateparse
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from functools import partial
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import subprocess as SP
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import panflute as pf
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import os
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import csv
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import datetime
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import re
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def remove_pound(elem, doc):
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if type(elem) == Str:
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return Str(elem.text.lstrip("#"))
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def fix_color(elem, doc):
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if type(elem) == MetaMap:
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for k in elem.content:
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if k.endswith("-color"):
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elem[k] = elem[k].walk(remove_pound)
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def update_date(elem, doc):
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if type(elem) == MetaMap:
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datefmt = doc.get_metadata('datefmt', "%Y-%m-%d")
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today = datetime.date.today().strftime(datefmt)
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date = dateparse(doc.get_metadata('date', today)).date()
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elem['date'] = MetaInlines(Str(date.strftime(datefmt)))
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return elem
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def csv_table(elem, doc):
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if type(elem) == Para and len(elem.content) == 1 and type(elem.content[0]) == Image:
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elem = elem.content[0]
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ext = os.path.splitext(elem.url)[1][1:]
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if ext == "csv":
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caption = elem.content
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has_header = elem.attributes.get(
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'has-header', "false").lower() == "true"
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with open(elem.url) as f:
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reader = csv.reader(f)
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body = []
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for row in reader:
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cells = [TableCell(Plain(Str(x))) for x in row]
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body.append(TableRow(*cells))
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header = body.pop(0) if has_header else None
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ret = Table(*body, header=header, caption=caption)
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return ret
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def code_refs(elem, doc):
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if type(elem) == Cite:
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label = elem.content[0]
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if type(label) == Str:
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label = label.text
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filename = re.findall(r"^\[@lst:(.*)\]$", label) or [None]
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if filename[0] in doc.inc_files:
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return [RawInline("\\hyperref[{}]{{{}}}".format(filename[0], filename[0]), format="tex")]
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def include_code(elem, doc):
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if type(elem) == CodeBlock:
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if "include" in elem.attributes:
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filepath = elem.attributes.pop("include")
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filename = os.path.split(filepath)[-1]
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try:
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elem.text += elem.text + \
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open(filepath, encoding="utf-8").read()
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elem.attributes['caption'] = filename
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doc.inc_files.append(filename)
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except Exception as e:
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elem.text += "Error: {}".format(e)
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return [RawBlock("\\label{{{}}}".format(filename), format="tex"), elem]
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def py_eval(options, data, element, doc):
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out_buffer = io.StringIO()
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with contextlib.redirect_stdout(out_buffer):
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exec(data, doc.pyenv)
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out_buffer.seek(0)
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return convert_text(out_buffer.read())
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def jinja_py_filt(doc, file):
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env = {}
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code = open(file, encoding="utf-8").read()
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exec(code, env)
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return env['main'](doc)
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def prepare(doc):
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doc.inc_files = []
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doc.env = Environment()
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doc.pyenv = {}
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filters = {'py': partial(jinja_py_filt, doc)}
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doc.env.filters.update(filters)
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def process_templates(elem, doc):
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if type(elem) == CodeBlock:
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if elem.classes == ["@"]:
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args = {'meta': doc.get_metadata()}
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return convert_text(doc.env.from_string(elem.text).render(args))
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def yaml_filt(elem, doc):
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tags = {
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'eval': py_eval,
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}
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return yaml_filter(elem, doc, tags=tags, strict_yaml=True)
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def checkboxes(elem, doc):
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if type(elem) in [Para, Plain]:
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val = re.findall(r"^\[([xX]|\ )\] (.*)$", stringify(elem))
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if val:
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val = val[0][0].lower() == "x"
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else:
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return elem
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marker = {
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True: RawInline("$\\boxtimes$", format="latex"),
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False: RawInline("$\\square$", format="latex"),
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}[val]
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cont = []
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if val:
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cont += elem.content[2:]
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else:
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cont += elem.content[4:]
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return Plain(marker, Space, *cont)
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return elem
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def main(doc=None):
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f = [process_templates, update_date, csv_table, include_code,
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fix_color, code_refs, yaml_filt, checkboxes]
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return run_filters(f, prepare=prepare, doc=doc)
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if __name__ == "__main__":
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main()
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