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843 lines
30 KiB
Python
843 lines
30 KiB
Python
# This file is part of lyx2lyx
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# Copyright (C) 2011 The LyX team
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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"""
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This module offers several free functions to help with lyx2lyx'ing.
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More documentaton is below, but here is a quick guide to what
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they do. Optional arguments are marked by brackets.
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add_to_preamble(document, text):
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Here, text can be either a single line or a list of lines. It
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is bad practice to pass something with embedded newlines, but
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we will handle that properly.
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The routine checks to see whether the provided material is
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already in the preamble. If not, it adds it.
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Prepends a comment "% Added by lyx2lyx" to text.
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insert_to_preamble(document, text[, index]):
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Here, text can be either a single line or a list of lines. It
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is bad practice to pass something with embedded newlines, but
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we will handle that properly.
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The routine inserts text at document.preamble[index], where by
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default index is 0, so the material is inserted at the beginning.
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Prepends a comment "% Added by lyx2lyx" to text.
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put_cmd_in_ert(cmd):
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Here cmd should be a list of strings (lines), which we want to
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wrap in ERT. Returns a list of strings so wrapped.
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A call to this routine will often go something like this:
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i = find_token('\\begin_inset FunkyInset', ...)
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j = find_end_of_inset(document.body, i)
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content = lyx2latex(document[i:j + 1])
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ert = put_cmd_in_ert(content)
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document.body[i:j+1] = ert
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get_ert(lines, i[, verbatim]):
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Here, lines is a list of lines of LyX material containing an ERT inset,
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whose content we want to convert to LaTeX. The ERT starts at index i.
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If the optional (by default: False) bool verbatim is True, the content
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of the ERT is returned verbatim, that is in LyX syntax (not LaTeX syntax)
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for the use in verbatim insets.
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lyx2latex(document, lines):
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Here, lines is a list of lines of LyX material we want to convert
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to LaTeX. We do the best we can and return a string containing
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the translated material.
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lyx2verbatim(document, lines):
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Here, lines is a list of lines of LyX material we want to convert
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to verbatim material (used in ERT an the like). We do the best we
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can and return a string containing the translated material.
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latex_length(slen):
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Convert lengths (in LyX form) to their LaTeX representation. Returns
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(bool, length), where the bool tells us if it was a percentage, and
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the length is the LaTeX representation.
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convert_info_insets(document, type, func):
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Applies func to the argument of all info insets matching certain types
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type : the type to match. This can be a regular expression.
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func : function from string to string to apply to the "arg" field of
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the info insets.
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is_document_option(document, option):
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Find if _option_ is a document option (\\options in the header).
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insert_document_option(document, option):
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Insert _option_ as a document option.
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remove_document_option(document, option):
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Remove _option_ as a document option.
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revert_language(document, lyxname, babelname="", polyglossianame=""):
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Reverts native language support to ERT
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If babelname or polyglossianame is empty, it is assumed
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this language package is not supported for the given language.
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"""
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import re
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from parser_tools import (
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find_end_of_inset,
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find_token,
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get_bool_value,
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get_containing_inset,
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get_containing_layout,
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get_value,
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)
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from unicode_symbols import unicode_reps
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# This will accept either a list of lines or a single line.
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# It is bad practice to pass something with embedded newlines,
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# though we will handle that.
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def add_to_preamble(document, text):
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"Add text to the preamble if it is not already there."
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if not isinstance(text, list):
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# split on \n just in case
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# it'll give us the one element list we want
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# if there's no \n, too
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text = text.split("\n")
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i = 0
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prelen = len(document.preamble)
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while True:
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i = find_token(document.preamble, text[0], i)
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if i == -1:
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break
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# we need a perfect match
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matched = True
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for line in text:
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if i >= prelen or line != document.preamble[i]:
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matched = False
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break
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i += 1
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if matched:
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return
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document.preamble.extend(["% Added by lyx2lyx"])
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document.preamble.extend(text)
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# Note that text can be either a list of lines or a single line.
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# It should really be a list.
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def insert_to_preamble(document, text, index=0):
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"""Insert text to the preamble at a given line"""
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if not isinstance(text, list):
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# split on \n just in case
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# it'll give us the one element list we want
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# if there's no \n, too
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text = text.split("\n")
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text.insert(0, "% Added by lyx2lyx")
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document.preamble[index:index] = text
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# A dictionary of Unicode->LICR mappings for use in a Unicode string's translate() method
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# Created from the reversed list to keep the first of alternative definitions.
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licr_table = {ord(ch): cmd for cmd, ch in unicode_reps[::-1]}
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def put_cmd_in_ert(cmd, is_open=False, as_paragraph=False):
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"""
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Return ERT inset wrapping `cmd` as a list of strings.
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`cmd` can be a string or list of lines. Non-ASCII characters are converted
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to the respective LICR macros if defined in unicodesymbols,
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`is_open` is a boolean setting the inset status to "open",
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`as_paragraph` wraps the ERT inset in a Standard paragraph.
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"""
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status = {False: "collapsed", True: "open"}
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ert_inset = [
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"\\begin_inset ERT",
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"status %s" % status[is_open],
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"",
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"\\begin_layout Plain Layout",
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"",
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# content here ([5:5])
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"\\end_layout",
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"",
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"\\end_inset",
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]
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paragraph = [
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"\\begin_layout Standard",
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# content here ([1:1])
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"",
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"",
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"\\end_layout",
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"",
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]
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# ensure cmd is an unicode instance and make it "LyX safe".
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if isinstance(cmd, list):
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cmd = "\n".join(cmd)
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cmd = cmd.translate(licr_table)
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cmd = cmd.replace("\\", "\n\\backslash\n")
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ert_inset[5:5] = cmd.splitlines()
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if not as_paragraph:
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return ert_inset
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paragraph[1:1] = ert_inset
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return paragraph
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def get_ert(lines, i, verbatim=False):
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"Convert an ERT inset into LaTeX."
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if not lines[i].startswith("\\begin_inset ERT"):
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return ""
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j = find_end_of_inset(lines, i)
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if j == -1:
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return ""
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while i < j and not lines[i].startswith("status"):
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i = i + 1
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i = i + 1
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ret = ""
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first = True
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while i < j:
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if lines[i] == "\\begin_layout Plain Layout":
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if first:
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first = False
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else:
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ret = ret + "\n"
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while i + 1 < j and lines[i + 1] == "":
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i = i + 1
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elif lines[i] == "\\end_layout":
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while i + 1 < j and lines[i + 1] == "":
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i = i + 1
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elif lines[i] == "\\backslash":
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if verbatim:
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ret = ret + "\n" + lines[i] + "\n"
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else:
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ret = ret + "\\"
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else:
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ret = ret + lines[i]
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i = i + 1
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return ret
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def lyx2latex(document, lines):
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"Convert some LyX stuff into corresponding LaTeX stuff, as best we can."
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content = ""
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ert_end = 0
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note_end = -1
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hspace = ""
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for curline in range(len(lines)):
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line = lines[curline]
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if line.startswith("\\begin_inset Note Note"):
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# We want to skip LyX notes, so remember where the inset ends
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note_end = find_end_of_inset(lines, curline + 1)
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continue
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elif note_end >= curline:
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# Skip LyX notes
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continue
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elif line.startswith("\\begin_inset ERT"):
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# We don't want to replace things inside ERT, so figure out
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# where the end of the inset is.
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ert_end = find_end_of_inset(lines, curline + 1)
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continue
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elif line.startswith("\\begin_inset Formula"):
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line = line[20:]
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elif line.startswith("\\begin_inset Quotes"):
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# For now, we do a very basic reversion. Someone who understands
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# quotes is welcome to fix it up.
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qtype = line[20:].strip()
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# lang = qtype[0]
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side = qtype[1]
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dbls = qtype[2]
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if side == "l":
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if dbls == "d":
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line = "``"
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else:
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line = "`"
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else:
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if dbls == "d":
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line = "''"
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else:
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line = "'"
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elif line.startswith("\\begin_inset Newline newline"):
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line = "\\\\ "
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elif line.startswith("\\noindent"):
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line = "\\noindent " # we need the space behind the command
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elif line.startswith("\\begin_inset space"):
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line = line[18:].strip()
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if line.startswith("\\hspace"):
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# Account for both \hspace and \hspace*
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hspace = line[:-2]
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continue
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elif line == "\\space{}":
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line = "\\ "
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elif line == "\\thinspace{}":
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line = "\\,"
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elif hspace != "":
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# The LyX length is in line[8:], after the \length keyword
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length = latex_length(line[8:])[1]
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line = hspace + "{" + length + "}"
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hspace = ""
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elif (
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line.isspace()
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or line.startswith("\\begin_layout")
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or line.startswith("\\end_layout")
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or line.startswith("\\begin_inset")
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or line.startswith("\\end_inset")
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or line.startswith("\\lang")
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or line.strip() == "status collapsed"
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or line.strip() == "status open"
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):
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# skip all that stuff
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continue
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# this needs to be added to the preamble because of cases like
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# \textmu, \textbackslash, etc.
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add_to_preamble(
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document,
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[
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"% added by lyx2lyx for converted index entries",
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"\\@ifundefined{textmu}",
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" {\\usepackage{textcomp}}{}",
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],
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)
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# a lossless reversion is not possible
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# try at least to handle some common insets and settings
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if ert_end >= curline:
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line = line.replace(r"\backslash", "\\")
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else:
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# No need to add "{}" after single-nonletter macros
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line = line.replace("&", "\\&")
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line = line.replace("#", "\\#")
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line = line.replace("^", "\\textasciicircum{}")
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line = line.replace("%", "\\%")
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line = line.replace("_", "\\_")
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line = line.replace("$", "\\$")
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# Do the LyX text --> LaTeX conversion
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for rep in unicode_reps:
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line = line.replace(rep[1], rep[0])
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line = line.replace(r"\backslash", r"\textbackslash{}")
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line = line.replace(r"\series bold", r"\bfseries{}").replace(
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r"\series default", r"\mdseries{}"
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)
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line = line.replace(r"\shape italic", r"\itshape{}").replace(
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r"\shape smallcaps", r"\scshape{}"
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)
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line = line.replace(r"\shape slanted", r"\slshape{}").replace(
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r"\shape default", r"\upshape{}"
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)
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line = line.replace(r"\emph on", r"\em{}").replace(r"\emph default", r"\em{}")
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line = line.replace(r"\noun on", r"\scshape{}").replace(
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r"\noun default", r"\upshape{}"
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)
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line = line.replace(r"\bar under", r"\underbar{").replace(r"\bar default", r"}")
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line = line.replace(r"\family sans", r"\sffamily{}").replace(
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r"\family default", r"\normalfont{}"
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)
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line = line.replace(r"\family typewriter", r"\ttfamily{}").replace(
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r"\family roman", r"\rmfamily{}"
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)
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line = line.replace(r"\InsetSpace ", r"").replace(r"\SpecialChar ", r"")
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content += line
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return content
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def lyx2verbatim(document, lines):
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"Convert some LyX stuff into corresponding verbatim stuff, as best we can."
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content = lyx2latex(document, lines)
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content = re.sub(r"\\(?!backslash)", r"\n\\backslash\n", content)
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return content
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def latex_length(slen):
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"""
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Convert lengths to their LaTeX representation. Returns (bool, length),
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where the bool tells us if it was a percentage, and the length is the
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LaTeX representation.
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"""
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i = 0
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percent = False
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# the slen has the form
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# ValueUnit+ValueUnit-ValueUnit or
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# ValueUnit+-ValueUnit
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# the + and - (glue lengths) are optional
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# the + always precedes the -
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# Convert relative lengths to LaTeX units
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units = {
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"col%": "\\columnwidth",
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"text%": "\\textwidth",
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"page%": "\\paperwidth",
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"line%": "\\linewidth",
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"theight%": "\\textheight",
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"pheight%": "\\paperheight",
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"baselineskip%": "\\baselineskip",
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}
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for unit in list(units.keys()):
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i = slen.find(unit)
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if i == -1:
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continue
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percent = True
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minus = slen.rfind("-", 1, i)
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plus = slen.rfind("+", 0, i)
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latex_unit = units[unit]
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if plus == -1 and minus == -1:
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value = slen[:i]
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value = str(float(value) / 100)
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end = slen[i + len(unit) :]
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slen = value + latex_unit + end
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if plus > minus:
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value = slen[plus + 1 : i]
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value = str(float(value) / 100)
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begin = slen[: plus + 1]
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end = slen[i + len(unit) :]
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slen = begin + value + latex_unit + end
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if plus < minus:
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value = slen[minus + 1 : i]
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value = str(float(value) / 100)
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begin = slen[: minus + 1]
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slen = begin + value + latex_unit
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# replace + and -, but only if the - is not the first character
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slen = slen[0] + slen[1:].replace("+", " plus ").replace("-", " minus ")
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# handle the case where "+-1mm" was used, because LaTeX only understands
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# "plus 1mm minus 1mm"
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if slen.find("plus minus"):
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lastvaluepos = slen.rfind(" ")
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lastvalue = slen[lastvaluepos:]
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slen = slen.replace(" ", lastvalue + " ")
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return (percent, slen)
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def length_in_bp(document, length):
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"Convert a length in LyX format to its value in bp units"
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em_width = 10.0 / 72.27 # assume 10pt font size
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text_width = 8.27 / 1.7 # assume A4 with default margins
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# scale factors are taken from Length::inInch()
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scales = {
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"bp": 1.0,
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"cc": (72.0 / (72.27 / (12.0 * 0.376 * 2.845))),
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"cm": (72.0 / 2.54),
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"dd": (72.0 / (72.27 / (0.376 * 2.845))),
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"em": (72.0 * em_width),
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"ex": (72.0 * em_width * 0.4305),
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"in": 72.0,
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"mm": (72.0 / 25.4),
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"mu": (72.0 * em_width / 18.0),
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"pc": (72.0 / (72.27 / 12.0)),
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"pt": (72.0 / (72.27)),
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"sp": (72.0 / (72.27 * 65536.0)),
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"text%": (72.0 * text_width / 100.0),
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"col%": (72.0 * text_width / 100.0), # assume 1 column
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"page%": (72.0 * text_width * 1.7 / 100.0),
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"line%": (72.0 * text_width / 100.0),
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"theight%": (72.0 * text_width * 1.787 / 100.0),
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"pheight%": (72.0 * text_width * 2.2 / 100.0),
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}
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rx = re.compile(r"^\s*([^a-zA-Z%]+)([a-zA-Z%]+)\s*$")
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m = rx.match(length)
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if not m:
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document.warning("Invalid length value: " + length + ".")
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return 0
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value = m.group(1)
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unit = m.group(2)
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if unit not in scales.keys():
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document.warning("Unknown length unit: " + unit + ".")
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return value
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return "%g" % (float(value) * scales[unit])
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def revert_flex_inset(document, name, LaTeXname):
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"Convert flex insets to TeX code"
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lines = document.body
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i = 0
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while True:
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i = find_token(lines, "\\begin_inset Flex " + name, i)
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if i == -1:
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return
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z = find_end_of_inset(lines, i)
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if z == -1:
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document.warning("Can't find end of Flex " + name + " inset.")
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i += 1
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continue
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# remove the \end_inset
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lines[z - 2 : z + 1] = put_cmd_in_ert("}")
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# we need to reset character layouts if necessary
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j = find_token(lines, "\\emph on", i, z)
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k = find_token(lines, "\\noun on", i, z)
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l = find_token(lines, "\\series", i, z)
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m = find_token(lines, "\\family", i, z)
|
||
n = find_token(lines, "\\shape", i, z)
|
||
o = find_token(lines, "\\color", i, z)
|
||
p = find_token(lines, "\\size", i, z)
|
||
q = find_token(lines, "\\bar under", i, z)
|
||
r = find_token(lines, "\\uuline on", i, z)
|
||
s = find_token(lines, "\\uwave on", i, z)
|
||
t = find_token(lines, "\\strikeout on", i, z)
|
||
if j != -1:
|
||
lines.insert(z - 2, "\\emph default")
|
||
if k != -1:
|
||
lines.insert(z - 2, "\\noun default")
|
||
if l != -1:
|
||
lines.insert(z - 2, "\\series default")
|
||
if m != -1:
|
||
lines.insert(z - 2, "\\family default")
|
||
if n != -1:
|
||
lines.insert(z - 2, "\\shape default")
|
||
if o != -1:
|
||
lines.insert(z - 2, "\\color inherit")
|
||
if p != -1:
|
||
lines.insert(z - 2, "\\size default")
|
||
if q != -1:
|
||
lines.insert(z - 2, "\\bar default")
|
||
if r != -1:
|
||
lines.insert(z - 2, "\\uuline default")
|
||
if s != -1:
|
||
lines.insert(z - 2, "\\uwave default")
|
||
if t != -1:
|
||
lines.insert(z - 2, "\\strikeout default")
|
||
lines[i : i + 4] = put_cmd_in_ert(LaTeXname + "{")
|
||
i += 1
|
||
|
||
|
||
def revert_font_attrs(lines, name, LaTeXname):
|
||
"Reverts font changes to TeX code"
|
||
i = 0
|
||
changed = False
|
||
while True:
|
||
i = find_token(lines, name + " on", i)
|
||
if i == -1:
|
||
break
|
||
j = find_token(lines, name + " default", i)
|
||
k = find_token(lines, name + " on", i + 1)
|
||
# if there is no default set, the style ends with the layout
|
||
# assure hereby that we found the correct layout end
|
||
if j != -1 and (j < k or k == -1):
|
||
lines[j : j + 1] = put_cmd_in_ert("}")
|
||
else:
|
||
j = find_token(lines, "\\end_layout", i)
|
||
lines[j:j] = put_cmd_in_ert("}")
|
||
lines[i : i + 1] = put_cmd_in_ert(LaTeXname + "{")
|
||
changed = True
|
||
i += 1
|
||
|
||
# now delete all remaining lines that manipulate this attribute
|
||
i = 0
|
||
while True:
|
||
i = find_token(lines, name, i)
|
||
if i == -1:
|
||
break
|
||
del lines[i]
|
||
|
||
return changed
|
||
|
||
|
||
def revert_layout_command(lines, name, LaTeXname):
|
||
"Reverts a command from a layout to TeX code"
|
||
i = 0
|
||
while True:
|
||
i = find_token(lines, "\\begin_layout " + name, i)
|
||
if i == -1:
|
||
return
|
||
k = -1
|
||
# find the next layout
|
||
j = i + 1
|
||
while k == -1:
|
||
j = find_token(lines, "\\begin_layout", j)
|
||
l = len(lines)
|
||
# if nothing was found it was the last layout of the document
|
||
if j == -1:
|
||
lines[l - 4 : l - 4] = put_cmd_in_ert("}")
|
||
k = 0
|
||
# exclude plain layout because this can be TeX code or another inset
|
||
elif lines[j] != "\\begin_layout Plain Layout":
|
||
lines[j - 2 : j - 2] = put_cmd_in_ert("}")
|
||
k = 0
|
||
else:
|
||
j += 1
|
||
lines[i] = "\\begin_layout Standard"
|
||
lines[i + 1 : i + 1] = put_cmd_in_ert(LaTeXname + "{")
|
||
i += 1
|
||
|
||
|
||
def hex2ratio(s):
|
||
"Converts an RRGGBB-type hexadecimal string to a float in [0.0,1.0]"
|
||
try:
|
||
val = int(s, 16)
|
||
except:
|
||
val = 0
|
||
if val != 0:
|
||
val += 1
|
||
return str(val / 256.0)
|
||
|
||
|
||
def str2bool(s):
|
||
"'true' goes to True, case-insensitively, and we strip whitespace."
|
||
s = s.strip().lower()
|
||
return s == "true"
|
||
|
||
|
||
def convert_info_insets(document, type, func):
|
||
"Convert info insets matching type using func."
|
||
i = 0
|
||
type_re = re.compile(r'^type\s+"(%s)"$' % type)
|
||
arg_re = re.compile(r'^arg\s+"(.*)"$')
|
||
while True:
|
||
i = find_token(document.body, "\\begin_inset Info", i)
|
||
if i == -1:
|
||
return
|
||
t = type_re.match(document.body[i + 1])
|
||
if t:
|
||
arg = arg_re.match(document.body[i + 2])
|
||
if arg:
|
||
new_arg = func(arg.group(1))
|
||
document.body[i + 2] = 'arg "%s"' % new_arg
|
||
i += 3
|
||
|
||
|
||
def insert_document_option(document, option):
|
||
"Insert _option_ as a document option."
|
||
|
||
# Find \options in the header
|
||
i = find_token(document.header, "\\options", 0)
|
||
# if the options does not exists add it after the textclass
|
||
if i == -1:
|
||
i = find_token(document.header, "\\textclass", 0) + 1
|
||
document.header.insert(i, r"\options %s" % option)
|
||
return
|
||
# otherwise append to options
|
||
if not is_document_option(document, option):
|
||
document.header[i] += ",%s" % option
|
||
|
||
|
||
def remove_document_option(document, option):
|
||
"""Remove _option_ as a document option."""
|
||
|
||
i = find_token(document.header, "\\options")
|
||
options = get_value(document.header, "\\options", i)
|
||
options = [op.strip() for op in options.split(",")]
|
||
|
||
# Remove `option` from \options
|
||
options = [op for op in options if op != option]
|
||
|
||
if options:
|
||
document.header[i] = "\\options " + ",".join(options)
|
||
else:
|
||
del document.header[i]
|
||
|
||
|
||
def is_document_option(document, option):
|
||
"Find if _option_ is a document option"
|
||
|
||
options = get_value(document.header, "\\options")
|
||
options = [op.strip() for op in options.split(",")]
|
||
return option in options
|
||
|
||
|
||
singlepar_insets = [
|
||
s.strip()
|
||
for s in "Argument, Caption Above, Caption Below, Caption Bicaption,"
|
||
"Caption Centered, Caption FigCaption, Caption Standard, Caption Table,"
|
||
"Flex Chemistry, Flex Fixme_Note, Flex Latin, Flex ListOfSlides,"
|
||
"Flex Missing_Figure, Flex PDF-Annotation, Flex PDF-Comment-Setup,"
|
||
"Flex Reflectbox, Flex S/R expression, Flex Sweave Input File,"
|
||
"Flex Sweave Options, Flex Thanks_Reference, Flex URL, Foot InTitle,"
|
||
"IPADeco, Index, Info, Phantom, Script".split(",")
|
||
]
|
||
# print(singlepar_insets)
|
||
|
||
|
||
def revert_language(document, lyxname, babelname="", polyglossianame=""):
|
||
"Revert native language support"
|
||
|
||
# Does the document use polyglossia?
|
||
use_polyglossia = False
|
||
if get_bool_value(document.header, "\\use_non_tex_fonts"):
|
||
i = find_token(document.header, "\\language_package")
|
||
if i == -1:
|
||
document.warning("Malformed document! Missing \\language_package")
|
||
else:
|
||
pack = get_value(document.header, "\\language_package", i)
|
||
if pack in ("default", "auto"):
|
||
use_polyglossia = True
|
||
|
||
# Do we use this language with polyglossia?
|
||
with_polyglossia = use_polyglossia and polyglossianame != ""
|
||
# Do we use this language with babel?
|
||
with_babel = with_polyglossia == False and babelname != ""
|
||
|
||
# Are we dealing with a primary or secondary language?
|
||
primary = document.language == lyxname
|
||
secondary = False
|
||
|
||
# Main language first
|
||
orig_doc_language = document.language
|
||
if primary:
|
||
# Change LyX document language to English (we will tell LaTeX
|
||
# to use the original language at the end of this function):
|
||
document.language = "english"
|
||
i = find_token(document.header, "\\language %s" % lyxname, 0)
|
||
if i != -1:
|
||
document.header[i] = "\\language english"
|
||
|
||
# Now look for occurences in the body
|
||
i = 0
|
||
while True:
|
||
i = find_token(document.body, "\\lang", i + 1)
|
||
if i == -1:
|
||
break
|
||
if document.body[i].startswith("\\lang %s" % lyxname):
|
||
secondary = True
|
||
texname = use_polyglossia and polyglossianame or babelname
|
||
elif primary and document.body[i].startswith("\\lang english"):
|
||
# Since we switched the main language manually, English parts need to be marked
|
||
texname = "english"
|
||
else:
|
||
continue
|
||
|
||
parent = get_containing_layout(document.body, i)
|
||
i_e = parent[2] # end line no,
|
||
# print(i, texname, parent, document.body[i+1], file=sys.stderr)
|
||
|
||
# Move leading space to the previous line:
|
||
if document.body[i + 1].startswith(" "):
|
||
document.body[i + 1] = document.body[i + 1][1:]
|
||
document.body.insert(i, " ")
|
||
continue
|
||
|
||
# TODO: handle nesting issues with font attributes, e.g.
|
||
# \begin_layout Standard
|
||
#
|
||
# \emph on
|
||
# \lang macedonian
|
||
# Македонски јазик
|
||
# \emph default
|
||
# — јужнословенски јазик, дел од групата на словенски јазици од јазичното
|
||
# семејство на индоевропски јазици.
|
||
# Македонскиот е службен и национален јазик во Македонија.
|
||
# \end_layout
|
||
|
||
# Ensure correct handling of list labels
|
||
if parent[0] in ["Labeling", "Description"] and " " not in "\n".join(
|
||
document.body[parent[3] : i]
|
||
):
|
||
# line `i+1` is first line of a list item,
|
||
# part before a space character is the label
|
||
# TODO: insets or language change before first space character
|
||
labelline = document.body[i + 1].split(" ", 1)
|
||
if len(labelline) > 1:
|
||
# Insert a space in the (original) document language
|
||
# between label and remainder.
|
||
# print(" Label:", labelline, file=sys.stderr)
|
||
lines = [
|
||
labelline[0],
|
||
"\\lang %s" % orig_doc_language,
|
||
" ",
|
||
"\\lang %s" % (primary and "english" or lyxname),
|
||
labelline[1],
|
||
]
|
||
document.body[i + 1 : i + 2] = lines
|
||
i_e += 4
|
||
|
||
# Find out where to end the language change.
|
||
langswitch = i
|
||
while True:
|
||
langswitch = find_token(document.body, "\\lang", langswitch + 1, i_e)
|
||
if langswitch == -1:
|
||
break
|
||
# print(" ", langswitch, document.body[langswitch], file=sys.stderr)
|
||
# skip insets
|
||
i_a = parent[3] # paragraph start line
|
||
container = get_containing_inset(document.body[i_a:i_e], langswitch - i_a)
|
||
if (
|
||
container
|
||
and container[1] < langswitch - i_a
|
||
and container[2] > langswitch - i_a
|
||
):
|
||
# print(" inset", container, file=sys.stderr)
|
||
continue
|
||
i_e = langswitch
|
||
break
|
||
|
||
# use function or environment?
|
||
singlepar = i_e - i < 3
|
||
if not singlepar and parent[0] == "Plain Layout":
|
||
# environment not allowed in some insets
|
||
container = get_containing_inset(document.body, i)
|
||
singlepar = container[0] in singlepar_insets
|
||
|
||
# Delete empty language switches:
|
||
if not "".join(document.body[i + 1 : i_e]):
|
||
del document.body[i:i_e]
|
||
i -= 1
|
||
continue
|
||
|
||
if singlepar:
|
||
if with_polyglossia:
|
||
begin_cmd = "\\text%s{" % texname
|
||
elif with_babel:
|
||
begin_cmd = "\\foreignlanguage{%s}{" % texname
|
||
end_cmd = "}"
|
||
else:
|
||
if with_polyglossia:
|
||
begin_cmd = "\\begin{%s}" % texname
|
||
end_cmd = "\\end{%s}" % texname
|
||
elif with_babel:
|
||
begin_cmd = "\\begin{otherlanguage}{%s}" % texname
|
||
end_cmd = "\\end{otherlanguage}"
|
||
|
||
if not primary or texname == "english":
|
||
try:
|
||
document.body[i_e:i_e] = put_cmd_in_ert(end_cmd)
|
||
document.body[i + 1 : i + 1] = put_cmd_in_ert(begin_cmd)
|
||
except UnboundLocalError:
|
||
pass
|
||
del document.body[i]
|
||
|
||
if not (primary or secondary):
|
||
return
|
||
|
||
# Make the language known to Babel/Polyglossia and ensure the correct
|
||
# document language:
|
||
doc_lang_switch = ""
|
||
if with_babel:
|
||
# add as global option
|
||
insert_document_option(document, babelname)
|
||
# Since user options are appended to the document options,
|
||
# Babel will treat `babelname` as primary language.
|
||
if not primary:
|
||
doc_lang_switch = "\\selectlanguage{%s}" % orig_doc_language
|
||
if with_polyglossia:
|
||
# Define language in the user preamble
|
||
# (don't use \AtBeginDocument, this fails with some languages).
|
||
add_to_preamble(
|
||
document,
|
||
["\\usepackage{polyglossia}", "\\setotherlanguage{%s}" % polyglossianame],
|
||
)
|
||
if primary:
|
||
# Changing the main language must be done in the document body.
|
||
doc_lang_switch = "\\resetdefaultlanguage{%s}" % polyglossianame
|
||
|
||
# Reset LaTeX main language if required and not already done
|
||
if doc_lang_switch and doc_lang_switch[1:] not in document.body[8:20]:
|
||
document.body[2:2] = put_cmd_in_ert(doc_lang_switch, is_open=True, as_paragraph=True)
|