Discussion List Archives

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[ddlm-group] Draft of proposed change to syntax document

Dear DDLm participants,

Here is a proposed text for a COMCIFS vote.  I will mark up the text
and get Brian to post it on the IUCr website following your editorial
comments.

===========
We propose that Change 7 in the current draft is replaced by the following text:

Change 7 - NEW

The ASCII """ sequence (alternatively ASCII ''') delimits the
beginning of a string that may
contain any printable character and whitespace, including embedded
<eol> characters, and is terminated by the first subsequent
""" sequence (alternatively '''). The string can contain separable "
and "" characters, (alternatively ' and '').
Clearly, the string within cannot contain an ASCII """ (or
alternatively ASCII ''').
For example
"""He said "His name is O'Hearly"."""
'''In {\bf \TeX} the accents are \' and \".'''
The string values are,
He said "His name is O'Hearly". and
In {\bf \TeX} the accents are \' and \".

Two speqial character sequences are defined: <backslash><backslash>
and <backslash><eol>.
<backslash><backslash> represents a single <backslash> character.
<backslash><eol> sequences are removed
from the string completely.  For example:

"""This string contains a single \\ and \
no newline"""

has string value

This string contains a single \ and no newline

and the string

"""An embedded ""\
" triple-quoted string ""\
" is easy to produce"""

has string value

An embedded """ triple-quoted string """ is easy to produce

===============

-- 
T +61 (02) 9717 9907
F +61 (02) 9717 3145
M +61 (04) 0249 4148
_______________________________________________
ddlm-group mailing list
ddlm-group@iucr.org
http://scripts.iucr.org/mailman/listinfo/ddlm-group

Reply to: [list | sender only]
International Union of Crystallography

Scientific Union Member of the International Council for Science (admitted 1947). Member of CODATA, the ICSU Committee on Data. Member of ICSTI, the International Council for Scientific and Technical Information. Partner with UNESCO, the United Nations Educational, Scientific and Cultural Organization in the International Year of Crystallography 2014.

ICSU Scientific Freedom Policy

The IUCr observes the basic policy of non-discrimination and affirms the right and freedom of scientists to associate in international scientific activity without regard to such factors as ethnic origin, religion, citizenship, language, political stance, gender, sex or age, in accordance with the Statutes of the International Council for Science.