#! /usr/bin/python3.5
# Last edited on 2017-06-13 23:08:24 by stolfilocal
# Copyright (c) 2007, Peter Corke - See note at end of file

# Defines pcbibtex_entry, subclass of pcbib_entry, and provides all BibTeX specific methods such as
#    writing an entry to file

import pcbib_db;
import pcbib_entry;
import string;
import re;
import sys;
import urllib;

class pcbibtex_entry(pcbib_entry.pcbib_entry):

  # write a BibTeX format entry
  def write(self, file=sys.stdout, stringdict=None):
    file.write( "@%s{%s,\n"  % (self.getEntryType(), self.getCiteKey()) );
    count = 0
    for rk in self.fieldDict:
      count += 1;
      # skip internally used fields
      if (rk == 'year_numeric') or (rk == 'month_numeric') or (rk == 'entry_type'):
        continue;

      # generate the entry
      value = self.fieldDict[rk];
      file.write("    %s = " % rk );

      if rk in ['author', 'editor']:
        file.write("{%s}" % " and ".join(value) );
      elif rk == 'month':
        if value:
          file.write("{%s}" % value );
        else:
          value = self.getMonthName();
          file.write("%s" % value[0:3].lower() );
      else:
        # is it an abbrev?
        if value in self.bibliography.abbrevDict:
          file.write("%s" % value );
        else:
          file.write("{%s}" % value );

      # add comma to all but last fields
      if count < len(self.fieldDict):
        file.write(",\n");
      else:
        file.write("\n");
    file.write("}\n\n");


  def setField(self, field, value):
    "Sets the field of {self} called {field} to the" \
    " given {value}.  A single level of braces or" \
    " doublequotes will be stripped from value.  Leading" \
    " and trailing blanks will be stripped too.\n" \
    "The {field} is mapped to lower case (with warning) if not already.\n" \
    "If the {field} is 'author' or 'editor', splits the {value} at" \
    " the 'and' keyword and strips blanks (but not braces or quotes).\n"

    def strip_blanks(s):
      s = string.strip(s, ' ');
      return s;
      # -----------------------------------------------

    def strip_braces_and_quotes(s):
      "Strips a single level of braces or" \
      " doublequotes will be stripped from value.  Leading" \
       " and trailing blanks will be stripped too."
      s = string.strip(s, ' ');
      if ((s[0] == '"') and (s[-1] == '"')) or ((s[0] == '{') and (s[-1] == '}')):
        s = string.strip(s[1:-1], ' ');
      return s;
      # -----------------------------------------------

    # deal specially with author/editor list, convert from bibtex X and Y to
    # a list for bibentry class
    if field.lower() in ["author", "editor"]:
      value = string.split(value, " and ");
      value = map(strip_blanks, value);
      
    # Insert in entry, print error if failed:
    try:
      # invoke the superclass
      pcbib_entry.pcbib_entry.setField(self, field, value);
    except AttributeError, err:
      print >> sys.stderr, "%s" % err;

# Copyright (c) 2007, Peter Corke
#
# All rights reserved.
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
#     * Redistributions of source code must retain the above copyright
#       notice, this list of conditions and the following disclaimer.
#     * Redistributions in binary form must reproduce the above copyright
#       notice, this list of conditions and the following disclaimer in the
#       documentation and/or other materials provided with the distribution.
#     * The name of the copyright holder may not be used to endorse or 
#       promote products derived from this software without specific prior 
#       written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS''
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS AND CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
# THE POSSIBILITY OF SUCH DAMAGE.