mirror of
https://git.lyx.org/repos/lyx.git
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ecc0d198df
- also support in the lyx2lyx argument conversion routine the case that "}{" appears in 2 consecutive ERTs
- also fix in lyx2lyx_tools.py the output of ERTs (it is important that we write the same amount of lines as if the ERT would have been inserted via LyX 2.0 or lyX 2.1)
439 lines
15 KiB
Python
439 lines
15 KiB
Python
# This file is part of lyx2lyx
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# -*- coding: utf-8 -*-
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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 modules offer 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(arg):
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Here arg 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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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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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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'''
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import string
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from parser_tools import find_token, find_end_of_inset
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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 type(text) is 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 type(text) is 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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def put_cmd_in_ert(arg):
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'''
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arg should be a list of lines we want to wrap in ERT.
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Returns a list of strings, with the lines so wrapped.
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'''
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ret = ["\\begin_inset ERT", "status collapsed", "", "\\begin_layout Plain Layout", ""]
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# It will be faster for us to work with a single string internally.
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# That way, we only go through the unicode_reps loop once.
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if type(arg) is list:
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s = "\n".join(arg)
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else:
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s = arg
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for rep in unicode_reps:
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s = s.replace(rep[1], rep[0].replace('\\\\', '\\'))
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s = s.replace('\\', "\\backslash\n")
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ret += s.splitlines()
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ret += ["\\end_layout", "", "\\end_inset"]
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return ret
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def get_ert(lines, i):
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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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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 = 0
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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 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 line.isspace() or \
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line.startswith("\\begin_layout") or \
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line.startswith("\\end_layout") or \
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line.startswith("\\begin_inset") or \
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line.startswith("\\end_inset") or \
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line.startswith("\\lang") or \
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line.strip() == "status collapsed" or \
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line.strip() == "status open":
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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(document, ['% added by lyx2lyx for converted index entries',
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'\\@ifundefined{textmu}',
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' {\\usepackage{textcomp}}{}'])
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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(r'\series default', r'\mdseries{}')
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line = line.replace(r'\shape italic', r'\itshape{}').replace(r'\shape smallcaps', r'\scshape{}')
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line = line.replace(r'\shape slanted', r'\slshape{}').replace(r'\shape default', r'\upshape{}')
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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(r'\noun default', r'\upshape{}')
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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(r'\family default', r'\normalfont{}')
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line = line.replace(r'\family typewriter', r'\ttfamily{}').replace(r'\family roman', r'\rmfamily{}')
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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 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 = {"text%":"\\textwidth", "col%":"\\columnwidth",
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"page%":"\\paperwidth", "line%":"\\linewidth",
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"theight%":"\\textheight", "pheight%":"\\paperheight"}
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for unit in 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 revert_flex_inset(lines, name, LaTeXname):
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" Convert flex insets to TeX code "
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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)
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n = find_token(lines, '\\shape', i, z)
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o = find_token(lines, '\\color', i, z)
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p = find_token(lines, '\\size', i, z)
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q = find_token(lines, '\\bar under', i, z)
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r = find_token(lines, '\\uuline on', i, z)
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s = find_token(lines, '\\uwave on', i, z)
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t = find_token(lines, '\\strikeout on', i, z)
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if j != -1:
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lines.insert(z - 2, "\\emph default")
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if k != -1:
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lines.insert(z - 2, "\\noun default")
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if l != -1:
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lines.insert(z - 2, "\\series default")
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if m != -1:
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lines.insert(z - 2, "\\family default")
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if n != -1:
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lines.insert(z - 2, "\\shape default")
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if o != -1:
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lines.insert(z - 2, "\\color inherit")
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if p != -1:
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lines.insert(z - 2, "\\size default")
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if q != -1:
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lines.insert(z - 2, "\\bar default")
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if r != -1:
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lines.insert(z - 2, "\\uuline default")
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if s != -1:
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lines.insert(z - 2, "\\uwave default")
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if t != -1:
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lines.insert(z - 2, "\\strikeout default")
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lines[i:i + 4] = put_cmd_in_ert(LaTeXname + "{")
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i += 1
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def revert_font_attrs(lines, name, LaTeXname):
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" Reverts font changes to TeX code "
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i = 0
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changed = False
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while True:
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i = find_token(lines, name + ' on', i)
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if i == -1:
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return changed
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j = find_token(lines, name + ' default', i)
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k = find_token(lines, name + ' on', i + 1)
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# if there is no default set, the style ends with the layout
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# assure hereby that we found the correct layout end
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if j != -1 and (j < k or k == -1):
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lines[j:j + 1] = put_cmd_in_ert("}")
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else:
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j = find_token(lines, '\\end_layout', i)
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lines[j:j] = put_cmd_in_ert("}")
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lines[i:i + 1] = put_cmd_in_ert(LaTeXname + "{")
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changed = True
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i += 1
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def revert_layout_command(lines, name, LaTeXname):
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" Reverts a command from a layout to TeX code "
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i = 0
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while True:
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i = find_token(lines, '\\begin_layout ' + name, i)
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if i == -1:
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return
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k = -1
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# find the next layout
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j = i + 1
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while k == -1:
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j = find_token(lines, '\\begin_layout', j)
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l = len(lines)
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# if nothing was found it was the last layout of the document
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if j == -1:
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lines[l - 4:l - 4] = put_cmd_in_ert("}")
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k = 0
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# exclude plain layout because this can be TeX code or another inset
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elif lines[j] != '\\begin_layout Plain Layout':
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lines[j - 2:j - 2] = put_cmd_in_ert("}")
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k = 0
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else:
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j += 1
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lines[i] = '\\begin_layout Standard'
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lines[i + 1:i + 1] = put_cmd_in_ert(LaTeXname + "{")
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i += 1
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def hex2ratio(s):
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" Converts an RRGGBB-type hexadecimal string to a float in [0.0,1.0] "
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try:
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val = int(s, 16)
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except:
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val = 0
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if val != 0:
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val += 1
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return str(val / 256.0)
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def str2bool(s):
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"'true' goes to True, case-insensitively, and we strip whitespace."
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s = s.strip().lower()
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return s == "true"
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