doorstop.core.publisher_latex._get_document_attributes() - Code Metrics - Inspection of "Merge pull request #573 from neerdoc/templates" - doorstop-dev/doorstop - Measure and Improve Code Quality continuously with Scrutinizer

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by Jace
created 2022-05-13 22:04 UTC
_get_document_attributes() C

↳ Parent: doorstop.core.publisher_latex
Complexity

Conditions
Size

Total Lines	31
Code Lines	30
Duplication

Lines	0
Ratio	0 %
Importance

Changes
Metric	Value
eloc	30
dl	0
loc	31
rs	5.9999
c	0
b	0
f	0
cc	10
nop	1
How to fix Complexity

# SPDX-License-Identifier: LGPL-3.0-only

"""Functions to publish LaTeX documents."""

import os
import re
from typing import List

from doorstop import common, settings
from doorstop.common import DoorstopError
from doorstop.core.template import check_latex_template_data, read_template_data
from doorstop.core.types import is_item, iter_documents, iter_items

log = common.logger(__name__)

END_ENUMERATE = "\\end{enumerate}"
END_ITEMIZE = "\\end{itemize}"
END_LONGTABLE = "\\end{longtable}"
HLINE = "\\hline"


def _lines_latex(obj, **kwargs):
    """Yield lines for a LaTeX report.

    :param obj: Item, list of Items, or Document to publish
    :param linkify: turn links into hyperlinks

    :return: iterator of lines of text

    """
    linkify = kwargs.get("linkify", False)
    for item in iter_items(obj):
        heading = "\\" + "sub" * (item.depth - 1) + "section*{"
        heading_level = "\\" + "sub" * (item.depth - 1) + "section{"

        if item.heading:
            text_lines = item.text.splitlines()
            if item.header:
                text_lines.insert(0, item.header)
            # Level and Text
            if settings.PUBLISH_HEADING_LEVELS:
                standard = "{h}{t}{he}".format(
                    h=heading_level,
                    t=_latex_convert(text_lines[0]) if text_lines else "",
                    he="}",
                )
            else:
                standard = "{h}{t}{he}".format(
                    h=heading,
                    t=_latex_convert(text_lines[0]) if text_lines else "",
                    he="}",
                )
            attr_list = _format_latex_attr_list(item, True)
            yield standard + attr_list
            yield from _format_latex_text(text_lines[1:])
        else:
            uid = item.uid
            if settings.ENABLE_HEADERS:
                if item.header:
                    uid = "{h}{{\\small{{}}{u}}}".format(
                        h=_latex_convert(item.header), u=item.uid
                    )
                else:
                    uid = "{u}".format(u=item.uid)

            # Level and UID
            if settings.PUBLISH_BODY_LEVELS:
                standard = "{h}{u}{he}".format(h=heading_level, u=uid, he="}")
            else:
                standard = "{h}{u}{he}".format(h=heading, u=uid, he="}")

            attr_list = _format_latex_attr_list(item, True)
            yield standard + attr_list

            # Text
            if item.text:
                yield ""  # break before text
                yield from _format_latex_text(item.text.splitlines())

            # Reference
            if item.ref:
                yield ""  # break before reference
                yield _format_latex_ref(item)

            # Reference
            if item.references:
                yield ""  # break before reference
                yield _format_latex_references(item)

            # Parent links
            if item.links:
                yield ""  # break before links
                items2 = item.parent_items
                if settings.PUBLISH_CHILD_LINKS:
                    label = "Parent links:"
                else:
                    label = "Links:"
                links = _format_latex_links(items2, linkify)
                label_links = _format_latex_label_links(label, links, linkify)
                yield label_links

            # Child links
            if settings.PUBLISH_CHILD_LINKS:
                items2 = item.find_child_items()
                if items2:
                    yield ""  # break before links
                    label = "Child links:"
                    links = _format_latex_links(items2, linkify)
                    label_links = _format_latex_label_links(label, links, linkify)
                    yield label_links

            # Add custom publish attributes
            if item.document and item.document.publish:
                header_printed = False
                for attr in item.document.publish:
                    if not item.attribute(attr):
                        continue
                    if not header_printed:
                        header_printed = True
                        yield "\\begin{longtable}{|l|l|}"
                        yield "Attribute & Value\\\\"
                        yield HLINE
                    yield "{} & {}".format(attr, item.attribute(attr))
                if header_printed:
                    yield END_LONGTABLE
                else:
                    yield ""

        yield ""  # break between items


def _format_latex_attr_list(item, linkify):
    """Create a LaTeX attribute list for a heading."""
    return (
        "{l}{u}{le}{zl}{u}{le}".format(l="\\label{", zl="\\zlabel{", u=item.uid, le="}")
        if linkify
        else ""
    )


def _format_latex_ref(item):
    """Format an external reference in LaTeX."""
    if settings.CHECK_REF:
        path, line = item.find_ref()
        path = path.replace("\\", "/")  # always use unix-style paths
        if line:
            return "\\begin{{quote}} \\verb|{p}| (line {line})\\end{{quote}}".format(
                p=path, line=line
            )
        else:
            return "\\begin{{quote}} \\verb|{p}|\\end{{quote}}".format(p=path)
    else:
        return "\\begin{{quote}} \\verb|{r}|\\end{{quote}}".format(r=item.ref)


def _format_latex_references(item):

    """Format an external reference in LaTeX."""
    if settings.CHECK_REF:
        references = item.find_references()
        text_refs = []
        for ref_item in references:
            path, line = ref_item
            path = path.replace("\\", "/")  # always use unix-style paths

            if line:
                text_refs.append(
                    "\\begin{{quote}} \\verb|{p}| (line {line})\\end{{quote}}".format(
                        p=path, line=line
                    )
                )
            else:
                text_refs.append(
                    "\\begin{{quote}} \\verb|{p}|\\end{{quote}}".format(p=path)
                )

        return "\n".join(ref for ref in text_refs)
    else:
        references = item.references
        text_refs = []
        for ref_item in references:
            path = ref_item["path"]
            path = path.replace("\\", "/")  # always use unix-style paths
            text_refs.append(
                "\\begin{{quote}} \\verb|{r}|\\end{{quote}}".format(r=path)
            )
        return "\n".join(ref for ref in text_refs)


def _format_latex_links(items, linkify):
    """Format a list of linked items in LaTeX."""
    links = []
    for item in items:
        link = _format_latex_item_link(item, linkify=linkify)
        links.append(link)
    return ", ".join(links)


def _format_latex_item_link(item, linkify=True):
    """Format an item link in LaTeX."""
    if linkify and is_item(item):
        if item.header:
            return "\\hyperref[{u}]{{{u}}}".format(u=item.uid)
        return "\\hyperref[{u}]{{{u}}}".format(u=item.uid)
    else:
        return str(item.uid)  # if not `Item`, assume this is an `UnknownItem`


def _format_latex_label_links(label, links, linkify):
    """Join a string of label and links with formatting."""
    if linkify:
        return "\\textbf{{{lb}}} {ls}".format(lb=label, ls=links)
    else:
        return "\\textbf{{{lb} {ls}}}".format(lb=label, ls=links)


def _latex_convert(line):
    """Single string conversion for LaTeX."""
    # Replace $.
    line = re.sub("\\$", "\\\\$", line)
    # Replace &.
    line = re.sub("&", "\\\\&", line)
    #############################
    ## Fix BOLD and ITALICS and Strikethrough.
    #############################
    # Replace **.
    line = re.sub("\\*\\*(.*?)\\*\\*", "\\\\textbf{\\1}", line)
    # Replace __.
    line = re.sub("__(.*?)__", "\\\\textbf{\\1}", line)
    # Replace *.
    line = re.sub("\\*(.*?)\\*", "\\\\textit{\\1}", line)
    # Replace _.
    line = re.sub("_(.*?)_", "\\\\textit{\\1}", line)
    # Replace ~~.
    line = re.sub("~~(.*?)~~", "\\\\sout{\\1}", line)
    #############################
    ## Fix manual heading levels
    #############################
    if settings.PUBLISH_BODY_LEVELS:
        star = ""
    else:
        star = "*"
    # Replace ######.
    line = re.sub(
        "###### (.*)",
        "\\\\subparagraph" + star + "{\\1 \\\\textbf{NOTE: This level is too deep.}}",
        line,
    )
    # Replace #####.
    line = re.sub("##### (.*)", "\\\\subparagraph" + star + "{\\1}", line)
    # Replace ####.
    line = re.sub("#### (.*)", "\\\\paragraph" + star + "{\\1}", line)
    # Replace ###.
    line = re.sub("### (.*)", "\\\\subsubsection" + star + "{\\1}", line)
    # Replace ##.
    line = re.sub("## (.*)", "\\\\subsection" + star + "{\\1}", line)
    # Replace #.
    line = re.sub("# (.*)", "\\\\section" + star + "{\\1}", line)
    return line


def _typeset_latex_image(image_match, line, block):
    """Typeset images."""
    image_title, image_path = image_match[0]
    # Check for title. If not found, alt_text will be used as caption.
    title_match = re.findall(r'(.*)\s+"(.*)"', image_path)
    if title_match:
        image_path, image_title = title_match[0]
    # Make a safe label.
    label = "fig:{l}".format(l=re.sub("[^0-9a-zA-Z]+", "", image_title))
    # Make the string to replace!
    replacement = (
        r"\includegraphics[width=0.8\textwidth]{"
        + image_path
        + r"}}\label{{{l}}}\zlabel{{{l}}}".format(l=label)
        + r"\caption{"
        + _latex_convert(image_title)
        + r"}"
    ).replace("\\", "\\\\")
    # Replace with LaTeX format.
    line = re.sub(
        r"!\[(.*)\]\((.*)\)",
        replacement,
        line,
    )
    # Create the figure.
    block.append(r"\begin{figure}[h!]\center")
    block.append(line)
    line = r"\end{figure}"
    return line


def _fix_table_line(line, end_pipes):
    r"""Fix table line.

    Fix each line typeset for tables by adding & for column breaking, \\ for row
    breaking and fixing pipes for tables with outside borders.
    """
    line = re.sub("\\|", "&", line)
    if end_pipes:
        line = re.sub("^\\s*&", "", line)
        line = re.sub("&\\s*$", "\\\\\\\\", line)
    else:
        line = line + "\\\\"
    return line


def _check_for_new_table(
    table_match, text, i, line, block, table_found, header_done, end_pipes
):
    """Check for new table.

    Check if a new table is beginning or not. If new table is detected, write
    table header and mark as found.
    """
    # Check next line for minimum 3 dashes and the same count of |.
    if i < len(text) - 1:
        next_line = text[i + 1]
        table_match_next = re.findall("\\|", next_line)
        if table_match_next:
            if len(table_match) == len(table_match_next):
                table_match_dashes = re.findall("-{3,}", next_line)
                if table_match_dashes:
                    table_found = True
                    end_pipes = bool(len(table_match) > len(table_match_dashes))
                    next_line = re.sub(":-+:", "c", next_line)
                    next_line = re.sub("-+:", "r", next_line)
                    next_line = re.sub("-+", "l", next_line)
                    table_header = "\\begin{longtable}{" + next_line + "}"
                    block.append(table_header)
                    # Fix the header.
                    line = _fix_table_line(line, end_pipes)
                else:
                    log.warning("Possibly incorrectly specified table found.")
            else:
                log.warning("Possibly unbalanced table found.")
    return table_found, header_done, line, end_pipes


def _typeset_latex_table(
    table_match, text, i, line, block, table_found, header_done, end_pipes
):
    """Typeset tables."""
    if not table_found:
        table_found, header_done, line, end_pipes = _check_for_new_table(
            table_match, text, i, line, block, table_found, header_done, end_pipes
        )
    else:
        if not header_done:
            line = HLINE
            header_done = True
        else:
            # Fix the line.
            line = _fix_table_line(line, end_pipes)
    return table_found, header_done, line, end_pipes


def _format_latex_text(text):
    """Fix all general text formatting to use LaTeX-macros."""
    block: List[str]
    block = []
    table_found = False
    header_done = False
    code_found = False
    math_found = False
    plantuml_found = False
    plantuml_file = ""
    plantuml_name = ""
    enumeration_found = False
    itemize_found = False
    end_pipes = False
    for i, line in enumerate(text):
        no_paragraph = False
        #############################
        ## Fix images.
        #############################
        image_match = re.findall(r"!\[(.*)\]\((.*)\)", line)
        if image_match:
            line = _typeset_latex_image(image_match, line, block)
        #############################
        ## Fix $ and MATH.
        #############################
        math_match = re.split("\\$\\$", line)
        if len(math_match) > 1:
            if math_found and len(math_match) == 2:
                math_found = False
                line = math_match[0] + "$" + _latex_convert(math_match[1])
            elif len(math_match) == 2:
                math_found = True
                line = _latex_convert(math_match[0]) + "$" + math_match[1]
            elif len(math_match) == 3:
                line = (
                    _latex_convert(math_match[0])
                    + "$"
                    + math_match[1]
                    + "$"
                    + _latex_convert(math_match[2])
                )
            else:
                raise DoorstopError(
                    "Cannot handle multiple math environments on one row."
                )
        else:
            line = _latex_convert(line)
        # Skip all other changes if in MATH!
        if math_found:
            line = line + "\\\\"
            block.append(line)
            continue
        #############################
        ## Fix code blocks.
        #############################
        code_match = re.findall("```", line)
        if code_found:
            no_paragraph = True
        if code_match:
            if code_found:
                block.append("\\end{lstlisting}")
                code_found = False
            else:
                block.append("\\begin{lstlisting}")
                code_found = True
            # Replace ```.
            line = re.sub("```", "", line)
        # Replace ` for inline code.
        line = re.sub("`(.*?)`", "\\\\lstinline`\\1`", line)
        #############################
        ## Fix enumeration.
        #############################
        enumeration_match = re.findall(r"^\d+\.\s(.*)", line)
        if enumeration_match and not enumeration_found:
            block.append("\\begin{enumerate}")
            enumeration_found = True
        if enumeration_found:
            no_paragraph = True
            if enumeration_match:
                # Replace the number.
                line = re.sub(r"^\d+\.\s", "\\\\item ", line)
                # Look ahead - need empty line to end enumeration!
                if i < len(text) - 1:
                    next_line = text[i + 1]
                    if next_line == "":
                        block.append(line)
                        line = END_ENUMERATE
                        enumeration_found = False
            else:
                # Look ahead - need empty line to end enumeration!
                if i < len(text) - 1:
                    next_line = text[i + 1]
                    if next_line == "":
                        block.append(line)
                        line = END_ENUMERATE
                        enumeration_found = False
        #############################
        ## Fix itemize.
        #############################
        itemize_match = re.findall("^[\\*+-]\\s(.*)", line)
        if itemize_match and not itemize_found:
            block.append("\\begin{itemize}")
            itemize_found = True
        if itemize_found:
            no_paragraph = True
            if itemize_match:
                # Replace the number.
                line = re.sub("^[\\*+-]\\s", "\\\\item ", line)
                # Look ahead - need empty line to end itemize!
                if i < len(text) - 1:
                    next_line = text[i + 1]
                    if next_line == "":
                        block.append(line)
                        line = END_ITEMIZE
                        itemize_found = False
            else:
                # Look ahead - need empty line to end itemize!
                if i < len(text) - 1:
                    next_line = text[i + 1]
                    if next_line == "":
                        block.append(line)
                        line = END_ITEMIZE
                        itemize_found = False

        #############################
        ## Fix tables.
        #############################
        # Check if line is part of table.
        table_match = re.findall("\\|", line)
        if table_match:
            table_found, header_done, line, end_pipes = _typeset_latex_table(
                table_match, text, i, line, block, table_found, header_done, end_pipes
            )
        else:
            if table_found:
                block.append(END_LONGTABLE)
            table_found = False
            header_done = False
        #############################
        ## Fix plantuml.
        #############################
        if plantuml_found:
            no_paragraph = True
        if re.findall("^plantuml\\s", line):
            plantuml_title = re.search('title="(.*)"', line)
            if plantuml_title:
                plantuml_name = plantuml_title.groups(0)[0]
            else:
                raise DoorstopError(
                    "'title' is required for plantUML processing in LaTeX."
                )
            plantuml_file = re.sub("\\s", "-", plantuml_name)
            line = "\\begin{plantuml}{" + plantuml_file + "}"
            plantuml_found = True
        if re.findall("@enduml", line):
            block.append(line)
            block.append("\\end{plantuml}")
            line = (
                "\\process{"
                + plantuml_file
                + "}{0.8\\textwidth}{"
                + plantuml_name
                + "}"
            )
            plantuml_found = False

        # Look ahead for empty line and add paragraph.
        if i < len(text) - 1:
            next_line = text[i + 1]
            if next_line == "" and not re.search("\\\\", line) and not no_paragraph:
                line = line + "\\\\"

        #############################
        ## All done. Add the line.
        #############################
        block.append(line)

        # Check for end of file and end all environments.
        if i == len(text) - 1:
            if code_found:
                block.append("\\end{lstlisting}")
            if enumeration_found:
                block.append(END_ENUMERATE)
            if itemize_found:
                block.append(END_ITEMIZE)
            if plantuml_found:
                block.append("\\end{plantuml}")
                block.append(
                    "\\process{"
                    + plantuml_file
                    + "}{0.8\\textwidth}{"
                    + plantuml_name
                    + "}"
                )
            if table_found:
                block.append(END_LONGTABLE)
    return block


def _matrix_latex(table, path):
    """Create a traceability table for LaTeX."""
    # Setup.
    traceability = []
    head, tail = os.path.split(path)
    tail = "traceability.tex"
    file = os.path.join(head, tail)
    count = 0
    # Start the table.
    table_start = "\\begin{longtable}{"
    table_head = ""
    header_data = table.__next__()
    for column in header_data:
        count = count + 1
        table_start = table_start + "|l"
        if len(table_head) > 0:
            table_head = table_head + " & "
        table_head = table_head + "\\textbf{" + str(column) + "}"
    table_start = table_start + "|}"
    table_head = table_head + "\\\\"
    traceability.append(table_start)
    traceability.append(
        "\\caption{Traceability matrix.}\\label{tbl:trace}\\zlabel{tbl:trace}\\\\"
    )
    traceability.append(HLINE)
    traceability.append(table_head)
    traceability.append(HLINE)
    traceability.append("\\endfirsthead")
    traceability.append("\\caption{\\textit{(Continued)} Traceability matrix.}\\\\")
    traceability.append(HLINE)
    traceability.append(table_head)
    traceability.append(HLINE)
    traceability.append("\\endhead")
    traceability.append(HLINE)
    traceability.append(
        "\\multicolumn{{{n}}}{{r}}{{\\textit{{Continued on next page.}}}}\\\\".format(
            n=count
        )
    )
    traceability.append("\\endfoot")
    traceability.append(HLINE)
    traceability.append("\\endlastfoot")
    # Add rows.
    for row in table:
        row_text = ""
        for column in row:
            if len(row_text) > 0:
                row_text = row_text + " & "
            if column:
                row_text = row_text + "\\hyperref[{u}]{{{u}}}".format(u=str(column))
            else:
                row_text = row_text + " "
        row_text = row_text + "\\\\"
        traceability.append(row_text)
        traceability.append(HLINE)
    # End the table.
    traceability.append(END_LONGTABLE)
    common.write_lines(traceability, file, end=settings.WRITE_LINESEPERATOR)


def _get_compile_path(path):
    """Return the path to the compile script."""
    head, tail = os.path.split(path)
    tail = "compile.sh"
    return os.path.join(head, tail)


def _get_document_attributes(obj):
    """Try to get attributes from document."""
    doc_attributes = {}
    doc_attributes["name"] = "doc-" + obj.prefix
    log.debug("Document name is '%s'", doc_attributes["name"])
    doc_attributes["title"] = "Test document for development of \\textit{Doorstop}"
    doc_attributes["ref"] = ""
    doc_attributes["by"] = ""
    doc_attributes["major"] = ""
    doc_attributes["minor"] = ""
    doc_attributes["copyright"] = "Doorstop"
    try:
        attribute_defaults = obj.__getattribute__("_attribute_defaults")
        if attribute_defaults:
            if attribute_defaults["doc"]["name"]:
                doc_attributes["name"] = attribute_defaults["doc"]["name"]
            if attribute_defaults["doc"]["title"]:
                doc_attributes["title"] = attribute_defaults["doc"]["title"]
            if attribute_defaults["doc"]["ref"]:
                doc_attributes["ref"] = attribute_defaults["doc"]["ref"]
            if attribute_defaults["doc"]["by"]:
                doc_attributes["by"] = attribute_defaults["doc"]["by"]
            if attribute_defaults["doc"]["major"]:
                doc_attributes["major"] = attribute_defaults["doc"]["major"]
            if attribute_defaults["doc"]["minor"]:
                doc_attributes["minor"] = attribute_defaults["doc"]["minor"]
            if attribute_defaults["doc"]["copyright"]:
                doc_attributes["copyright"] = attribute_defaults["doc"]["copyright"]
    except AttributeError:
        pass
    return doc_attributes


def _generate_latex_wrapper(
    obj, path, assets_dir, template, matrix, count, parent, parent_path
):
    """Generate all wrapper scripts required for typesetting in LaTeX."""
    # Check for defined document attributes.
    doc_attributes = _get_document_attributes(obj)
    # Create the wrapper file.
    head, tail = os.path.split(path)
    if tail != obj.prefix + ".tex":
        log.warning(
            "LaTeX export does not support custom file names. Change in .doorstop.yml instead."
        )
    tail = doc_attributes["name"] + ".tex"
    path = os.path.join(head, obj.prefix + ".tex")
    path3 = os.path.join(head, tail)
    # Load template data.
    template_data = read_template_data(assets_dir, template)
    check_latex_template_data(template_data)
    wrapper = []
    wrapper.append(
        "\\documentclass[%s]{template/%s}"
        % (", ".join(template_data["documentclass"]), template)
    )
    # Add required packages from template data.
    wrapper = _add_comment(
        wrapper,
        "These packages were automatically added from the template configuration file.",
    )
    for package, options in template_data["usepackage"].items():
        package_line = "\\usepackage"
        if options:
            package_line += "[%s]" % ", ".join(options)
        package_line += "{%s}" % package
        wrapper.append(package_line)
    wrapper = _add_comment(wrapper, "END data from the template configuration file.")
    wrapper.append("")
    wrapper = _add_comment(
        wrapper,
        "These fields are generated from the default doc attribute in the .doorstop.yml file.",
    )
    wrapper.append("\\def\\doccopyright{{{n}}}".format(n=doc_attributes["copyright"]))
    wrapper.append("\\def\\doccategory{{{t}}}".format(t=obj.prefix))
    wrapper.append("\\def\\doctitle{{{n}}}".format(n=doc_attributes["title"]))
    wrapper.append("\\def\\docref{{{n}}}".format(n=doc_attributes["ref"]))
    wrapper.append("\\def\\docby{{{n}}}".format(n=doc_attributes["by"]))
    wrapper.append("\\def\\docissuemajor{{{n}}}".format(n=doc_attributes["major"]))
    wrapper.append("\\def\\docissueminor{{{n}}}".format(n=doc_attributes["minor"]))
    wrapper = _add_comment(wrapper, "END data from the .doorstop.yml file.")
    wrapper.append("")
    info_text_set = False
    for external, _ in iter_documents(parent, parent_path, ".tex"):
        # Check for defined document attributes.
        external_doc_attributes = _get_document_attributes(external)
        # Don't add self.
        if external_doc_attributes["name"] != doc_attributes["name"]:
            if not info_text_set:
                wrapper = _add_comment(
                    wrapper,
                    "These are automatically added external references to make cross-references work between the PDFs.",
                )
                info_text_set = True
            wrapper.append(
                "\\zexternaldocument{{{n}}}".format(n=external_doc_attributes["name"])
            )
            wrapper.append(
                "\\externaldocument{{{n}}}".format(n=external_doc_attributes["name"])
            )
    if info_text_set:
        wrapper = _add_comment(wrapper, "END external references.")
        wrapper.append("")
    wrapper = _add_comment(
        wrapper,
        "These lines were automatically added from the template configuration file to allow full customization of the template _before_ \\begin{document}.",
    )
    for line in template_data["before_begin_document"]:
        wrapper.append(line)
    wrapper = _add_comment(
        wrapper, "END custom data from the template configuration file."
    )
    wrapper.append("")
    wrapper.append("\\begin{document}")
    wrapper = _add_comment(
        wrapper,
        "These lines were automatically added from the template configuration file to allow full customization of the template _after_ \\begin{document}.",
    )
    for line in template_data["after_begin_document"]:
        wrapper.append(line)
    wrapper = _add_comment(
        wrapper, "END custom data from the template configuration file."
    )
    wrapper.append("")
    wrapper = _add_comment(wrapper, "Load the doorstop data file.")
    wrapper.append("\\input{{{n}.tex}}".format(n=obj.prefix))
    wrapper = _add_comment(wrapper, "END doorstop data file.")
    wrapper.append("")
    # Include traceability matrix
    if matrix and count:
        wrapper = _add_comment(wrapper, "Add traceability matrix.")
        if settings.PUBLISH_HEADING_LEVELS:
            wrapper.append("\\section{Traceability}")
        else:
            wrapper.append("\\section*{Traceability}")
        wrapper.append("\\input{traceability.tex}")
        wrapper = _add_comment(wrapper, "END traceability matrix.")
        wrapper.append("")
    wrapper.append("\\end{document}")
    common.write_lines(wrapper, path3, end=settings.WRITE_LINESEPERATOR)

    # Add to compile.sh as return value.
    return path, "pdflatex -halt-on-error -shell-escape {n}.tex".format(
        n=doc_attributes["name"]
    )


def _add_comment(wrapper, text):
    """Add comments to the .tex output file in a pretty way."""
    wrapper.append("%" * 80)
    words = text.split(" ")
    line = "%"
    for word in words:
        if len(line) + len(word) <= 77:
            line += " %s" % word
        else:
            line += " " * (79 - len(line)) + "%"
            wrapper.append(line)
            line = "% " + word
    line += " " * (79 - len(line)) + "%"
    wrapper.append(line)
    wrapper.append("%" * 80)

    return wrapper

doorstop-dev / doorstop

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_get_document_attributes() C

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