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bibformatadminlib.py
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bibformatadminlib.py
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			# -- coding: utf-8 --
			##
			## $Id$
			##
			## This file is part of CDS Invenio.
			## Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007 CERN.
			##
			## CDS Invenio is free software; you can redistribute it and/or
			## modify it under the terms of the GNU General Public License as
			## published by the Free Software Foundation; either version 2 of the
			## License, or (at your option) any later version.
			##
			## CDS Invenio is distributed in the hope that it will be useful, but
			## WITHOUT ANY WARRANTY; without even the implied warranty of
			## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
			## General Public License for more details.
			##
			## You should have received a copy of the GNU General Public License
			## along with CDS Invenio; if not, write to the Free Software Foundation, Inc.,
			## 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.

			"""
			Handle requests from the web interface to configure BibFormat.
			"""

			__revision__ = "$Id$"

			import os
			import re
			import stat
			import time
			import cgi

			from invenio.config import cdslang, weburl, etcdir
			from invenio.bibformat_config import \
			CFG_BIBFORMAT_TEMPLATES_PATH, \
			CFG_BIBFORMAT_OUTPUTS_PATH, \
			CFG_BIBFORMAT_ELEMENTS_PATH, \
			CFG_BIBFORMAT_FORMAT_TEMPLATE_EXTENSION
			from invenio.urlutils import wash_url_argument
			from invenio.errorlib import get_msgs_for_code_list
			from invenio.messages import gettext_set_language, wash_language, language_list_long
			from invenio.search_engine import perform_request_search, encode_for_xml
			from invenio import bibformat_dblayer
			from invenio import bibformat_engine

			import invenio.template
			bibformat_templates = invenio.template.load('bibformat')

			def getnavtrail(previous = '', ln=cdslang):
			"""Get the navtrail"""
			previous = wash_url_argument(previous, 'str')
			ln = wash_language(ln)
			_ = gettext_set_language(ln)
			navtrail = '''<a class="navtrail" href="%s/admin/index.%s.html">%s</a> > <a class=navtrail href="%s/admin/bibformat/bibformatadmin.py?ln=%s">%s</a> ''' % (weburl, ln, _("Admin Area"), weburl, ln, _("BibFormat Admin"))
			navtrail = navtrail + previous
			return navtrail

			def perform_request_index(ln=cdslang, warnings=None, is_admin=False):
			"""
			Returns the main BibFormat admin page.


			This is the only page where the code needs to be cleaned
			when the migration kit will be removed. #TODO: remove when removing migration_kit

			@param ln language
			@param warnings a list of messages to display at top of the page, that prevents writability in etc
			@param is_admin indicate if user is authorized to use BibFormat
			@return the main admin page
			"""
			if warnings is not None and len(warnings) > 0:
			warnings = get_msgs_for_code_list(warnings, 'warning', ln)
			warnings = [x[1] for x in warnings] # Get only message, not code

			return bibformat_templates.tmpl_admin_index(ln, warnings, is_admin)

			def perform_request_format_templates_management(ln=cdslang, checking=0):
			"""
			Returns the main management console for format templates

			@param ln language
			@param checking the level of checking (0: basic, 1:extensive (time consuming) )
			@return the main page for format templates management
			"""


			# Reload in case a format was changed
			bibformat_engine.clear_caches()

			# Get formats lists of attributes
			formats = bibformat_engine.get_format_templates(with_attributes=True)
			formats_attrs = []
			for filename in formats:
			attrs = formats[filename]['attrs']
			attrs['filename'] = filename
			if filename.endswith('.xsl'):
			attrs['name'] += ' (XSL)'
			attrs['editable'] = can_write_format_template(filename)
			path = CFG_BIBFORMAT_TEMPLATES_PATH + os.sep + filename
			attrs['last_mod_date'] = time.ctime(os.stat(path)[stat.ST_MTIME])
			status = check_format_template(filename, checking)
			if len(status) > 1 or (len(status)==1 and status[0][0] != 'ERR_BIBFORMAT_CANNOT_READ_TEMPLATE_FILE'):
			status = '''
			<a style="color: rgb(255, 0, 0);"
			href="%(weburl)s/admin/bibformat/bibformatadmin.py/validate_format?ln=%(ln)s&bft=%(bft)s">Not OK</a>
			''' % {'weburl':weburl,
			'ln':ln,
			'bft':filename}
			else:
			status = '<span style="color: rgb(0, 255, 0);">OK</span>'
			attrs['status'] = status
			formats_attrs.append(attrs)

			def sort_by_attr(seq):
			"""
			Sort 'seq' by attribute name.
			@param seq a list of dictionaries, containing each one key named 'name'
			"""
			intermed = [ (x['name'].lower(), i, x) for i, x in enumerate(seq)]
			intermed.sort()
			return [x[-1] for x in intermed]

			sorted_format_templates = sort_by_attr(formats_attrs)

			return bibformat_templates.tmpl_admin_format_templates_management(ln, sorted_format_templates)

			def perform_request_format_template_show(bft, ln=cdslang, code=None,
			ln_for_preview=cdslang, pattern_for_preview="",
			content_type_for_preview="text/html"):
			"""
			Returns the editor for format templates.

			@param ln language
			@param bft the template to edit
			@param code, the code being edited
			@param ln_for_preview the language for the preview (for bfo)
			@param pattern_for_preview the search pattern to be used for the preview (for bfo)
			@return the main page for formats management
			"""
			format_template = bibformat_engine.get_format_template(filename=bft, with_attributes=True)

			# Either use code being edited, or the original code inside template
			if code is None:
			code = cgi.escape(format_template['code'])

			# Build a default pattern if it is empty
			if pattern_for_preview == "":
			recIDs = perform_request_search()
			if len(recIDs) > 0:
			recID = recIDs[0]
			pattern_for_preview = "recid:%s" % recID

			editable = can_write_format_template(bft)

			# Look for all existing content_types
			content_types = bibformat_dblayer.get_existing_content_types()

			return bibformat_templates.tmpl_admin_format_template_show(ln, format_template['attrs']['name'],
			format_template['attrs']['description'],
			code, bft,
			ln_for_preview=ln_for_preview,
			pattern_for_preview=pattern_for_preview,
			editable=editable,
			content_type_for_preview=content_type_for_preview,
			content_types=content_types)

			def perform_request_format_template_show_dependencies(bft, ln=cdslang):
			"""
			Show the dependencies (on elements) of the given format.

			@param ln language
			@param bft the filename of the template to show
			"""
			format_template = bibformat_engine.get_format_template(filename=bft, with_attributes=True)
			name = format_template['attrs']['name']
			output_formats = get_outputs_that_use_template(bft)
			format_elements = get_elements_used_by_template(bft)
			tags = []
			for output_format in output_formats:
			for tag in output_format['tags']:
			tags.append(tag)
			for format_element in format_elements:
			for tag in format_element['tags']:
			tags.append(tag)

			tags.sort()
			return bibformat_templates.tmpl_admin_format_template_show_dependencies(ln,
			name,
			bft,
			output_formats,
			format_elements,
			tags)

			def perform_request_format_template_show_attributes(bft, ln=cdslang, new=False):
			"""
			Page for template name and descrition attributes edition.

			If format template is new, offer the possibility to
			make a duplicate of an existing format template.

			@param ln language
			@param bft the template to edit
			@param new if True, the template has just been added (is new)
			@return the main page for format templates attributes edition
			"""
			all_templates = []
			if new:
			all_templates_attrs = bibformat_engine.get_format_templates(with_attributes=True)
			if all_templates_attrs.has_key(bft): # Sanity check. Should always be true at this stage
			del all_templates_attrs[bft] # Remove in order not to make a duplicate of self..

			# Sort according to name, inspired from Python Cookbook

			def sort_by_name(seq, keys):
			"""
			Sort the sequence 'seq' by 'keys'
			"""
			intermed = [(x['attrs']['name'], keys[i], i, x) for i, x in enumerate(seq)]
			intermed.sort()
			return [(x[1], x[0]) for x in intermed]

			all_templates = sort_by_name(all_templates_attrs.values(), all_templates_attrs.keys())
			#keys = all_templates_attrs.keys()
			#keys.sort()
			#all_templates = map(lambda x: (x, all_templates_attrs.get(x)['attrs']['name']), keys)

			format_template = bibformat_engine.get_format_template(filename=bft, with_attributes=True)
			name = format_template['attrs']['name']
			description = format_template['attrs']['description']
			editable = can_write_format_template(bft)

			return bibformat_templates.tmpl_admin_format_template_show_attributes(ln,
			name,
			description,
			bft,
			editable,
			all_templates,
			new)


			def perform_request_format_template_show_short_doc(ln=cdslang, search_doc_pattern=""):
			"""
			Returns the format elements documentation to be included inside format templated editor.

			Keep only elements that have 'search_doc_pattern' text inside description,
			if pattern not empty

			@param ln language
			@param search_doc_pattern a search pattern that specified which elements to display
			@return a brief version of the format element documentation
			"""
			# Get format elements lists of attributes
			elements = bibformat_engine.get_format_elements(with_built_in_params=True)

			keys = elements.keys()
			keys.sort()
			elements = map(elements.get, keys)

			def filter_elem(element):
			"""Keep element if is string representation contains all keywords of search_doc_pattern,
			and if its name does not start with a number (to remove 'garbage' from elements in tags table)"""
			if element['type'] != 'python' and \
			element['attrs']['name'][0] in ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9']:
			return False
			text = str(element).upper() # Basic text representation
			if search_doc_pattern != "":
			for word in search_doc_pattern.split():
			if word.upper() != "AND" and text.find(word.upper()) == -1:
			return False

			return True

			elements = filter(filter_elem, elements)



			return bibformat_templates.tmpl_admin_format_template_show_short_doc(ln, elements)

			def perform_request_format_elements_documentation(ln=cdslang):
			"""
			Returns the main management console for format elements.

			Includes list of format elements and associated administration tools.
			@param ln language
			@return the main page for format elements management
			"""
			# Get format elements lists of attributes
			elements = bibformat_engine.get_format_elements(with_built_in_params=True)

			keys = elements.keys()
			keys.sort()
			elements = map(elements.get, keys)
			# Remove all elements found in table and that begin with a number (to remove 'garbage')
			filtered_elements = [element for element in elements if element['type'] == 'python' or \
			element['attrs']['name'][0] not in ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9']]

			return bibformat_templates.tmpl_admin_format_elements_documentation(ln, filtered_elements)

			def perform_request_format_element_show_dependencies(bfe, ln=cdslang):
			"""
			Show the dependencies of the given format.

			@param ln language
			@param bfe the filename of the format element to show
			"""
			format_templates = get_templates_that_use_element(bfe)
			tags = get_tags_used_by_element(bfe)

			return bibformat_templates.tmpl_admin_format_element_show_dependencies(ln,
			bfe,
			format_templates,
			tags)

			def perform_request_format_element_test(bfe, ln=cdslang, param_values=None, uid=None, req=None):
			"""
			Show the dependencies of the given format.

			'param_values' is the list of values to pass to 'format'
			function of the element as parameters, in the order ...
			If params is None, this means that they have not be defined by user yet.

			@param ln language
			@param bfe the name of the format element to show
			@param params the list of parameters to pass to element format function
			@param uid the user id for this request
			@param req the mod_python request object
			"""
			_ = gettext_set_language(ln)
			format_element = bibformat_engine.get_format_element(bfe, with_built_in_params=True)

			# Load parameter names and description
			##
			param_names = []
			param_descriptions = []

			# First value is a search pattern to choose the record
			param_names.append(_("Test with record:")) # Caution: keep in sync with same text below
			param_descriptions.append(_("Enter a search query here."))

			# Parameters defined in this element
			for param in format_element['attrs']['params']:
			param_names.append(param['name'])
			param_descriptions.append(param['description'])

			# Parameters common to all elements of a kind
			for param in format_element['attrs']['builtin_params']:
			param_names.append(param['name'])
			param_descriptions.append(param['description'])

			# Load parameters values
			##

			if param_values is None: #First time the page is loaded
			param_values = []

			# Propose an existing record id by default
			recIDs = perform_request_search()
			if len(recIDs) > 0:
			recID = recIDs[0]
			param_values.append("recid:%s" % recID)

			# Default values defined in this element
			for param in format_element['attrs']['params']:
			param_values.append(param['default'])

			#Parameters common to all elements of a kind
			for param in format_element['attrs']['builtin_params']:
			param_values.append(param['default'])


			# Execute element with parameters
			##
			params = dict(zip(param_names, param_values))

			# Find a record corresponding to search pattern
			search_pattern = params[_("Test with record:")] # Caution keep in sync with same text above and below
			recIDs = perform_request_search(p=search_pattern)
			del params[_("Test with record:")] # Caution keep in sync with same text above

			if len(recIDs) > 0:
			bfo = bibformat_engine.BibFormatObject(recIDs[0], ln, search_pattern, None, uid, req)
			(result, errors) = bibformat_engine.eval_format_element(format_element, bfo, params)
			else:
			result = get_msgs_for_code_list([("ERR_BIBFORMAT_NO_RECORD_FOUND_FOR_PATTERN", search_pattern)],
			stream='error', ln=cdslang)[0][1]

			return bibformat_templates.tmpl_admin_format_element_test(ln,
			bfe,
			format_element['attrs']['description'],
			param_names,
			param_values,
			param_descriptions,
			result)

			def perform_request_output_formats_management(ln=cdslang, sortby="code"):
			"""
			Returns the main management console for output formats.

			Includes list of output formats and associated administration tools.
			@param ln language
			@param sortby the sorting crieteria (can be 'code' or 'name')
			@return the main page for output formats management
			"""
			# Reload in case a format was changed
			bibformat_engine.clear_caches()

			# Get output formats lists of attributes
			output_formats_list = bibformat_engine.get_output_formats(with_attributes=True)
			output_formats = {}
			for filename in output_formats_list:
			output_format = output_formats_list[filename]
			code = output_format['attrs']['code']
			path = CFG_BIBFORMAT_OUTPUTS_PATH + os.sep + filename
			output_format['editable'] = can_write_output_format(code)
			output_format['last_mod_date'] = time.ctime(os.stat(path)[stat.ST_MTIME])
			# Validate the output format
			status = check_output_format(code)
			# If there is an error but the error is just 'format is not writable', do not display as error
			if len(status) > 1 or (len(status)==1 and status[0][0] != 'ERR_BIBFORMAT_CANNOT_WRITE_OUTPUT_FILE'):
			status = '''
			<a style="color: rgb(255, 0, 0);"
			href="%(weburl)s/admin/bibformat/bibformatadmin.py/validate_format?ln=%(ln)s&bfo=%(bfo)s">Not OK</a>
			''' % {'weburl':weburl,
			'ln':ln,
			'bfo':code}
			else:
			status = '<span style="color: rgb(0, 255, 0);">OK</span>'
			output_format['status'] = status
			output_formats[filename] = output_format

			# Sort according to code or name, inspired from Python Cookbook
			def get_attr(dic, attr):
			"""
			Returns the value given by 'attr' in the dictionary 'dic', representing
			an output format attributes.
			If attr is equal to 'code', returns the code attribute of the dictionary.
			Else returns the generic name

			@param dic a dictionary of the attribute of an output format, as returned by bibformat_engine.get_output_format
			@param the attribute we want to fetch. Either 'code' or any other string
			"""
			if attr == "code":
			return dic['attrs']['code']
			else:
			return dic['attrs']['names']['generic']

			def sort_by_attr(seq, attr):
			"""
			Sort dictionaries given in 'seq' according to parameter 'attr'
			"""
			intermed = [ (get_attr(x, attr), i, x) for i, x in enumerate(seq)]
			intermed.sort()
			return [x[-1] for x in intermed]

			if sortby != "code" and sortby != "name":
			sortby = "code"

			sorted_output_formats = sort_by_attr(output_formats.values(), sortby)

			return bibformat_templates.tmpl_admin_output_formats_management(ln, sorted_output_formats)

			def perform_request_output_format_show(bfo, ln=cdslang, r_fld=[], r_val=[], r_tpl=[], default="", r_upd="", args={}):
			"""
			Returns the editing tools for a given output format.

			The page either shows the output format from file, or from user's
			POST session, as we want to let him edit the rules without
			saving. Policy is: r_fld, r_val, rules_tpl are list of attributes
			of the rules. If they are empty, load from file. Else use
			POST. The i th value of each list is one of the attributes of rule
			i. Rule i is the i th rule in order of evaluation. All list have
			the same number of item.

			r_upd contains an action that has to be performed on rules. It
			can composed of a number (i, the rule we want to modify) and an
			operator : "save" to save the rules, "add" or "del".
			syntax: operator [number]
			For eg: r_upd = _("Save Changes") saves all rules (no int should be specified).
			For eg: r_upd = _("Add New Rule") adds a rule (no int should be specified).
			For eg: r_upd = _("Remove Rule") + " 5" deletes rule at position 5.
			The number is used only for operation delete.

			An action can also be in **args. We must look there for string starting
			with '(+\|-) [number]' to increase (+) or decrease (-) a rule given by its
			index (number).
			For example "+ 5" increase priority of rule 5 (put it at fourth position).
			The string in **args can be followed by some garbage that looks like .x
			or .y, as this is returned as the coordinate of the click on the
			<input type="image">. We HAVE to use args and reason on its keys, because for <input> of
			type image, iexplorer does not return the value of the tag, but only the name.

			Action is executed only if we are working from user's POST session
			(means we must have loaded the output format first, which is
			totally normal and expected behaviour)

			IMPORTANT: we display rules evaluation index starting at 1 in
			interface, but we start internally at 0

			@param ln language
			@param bfo the filename of the output format to show
			@param r_fld the list of 'field' attribute for each rule
			@param r_val the list of 'value' attribute for each rule
			@param r_tpl the list of 'template' attribute for each rule
			@param default the default format template used by this output format
			@param r_upd the rule that we want to increase/decrease in order of evaluation
			"""

			output_format = bibformat_engine.get_output_format(bfo, with_attributes=True)
			format_templates = bibformat_engine.get_format_templates(with_attributes=True)
			name = output_format['attrs']['names']['generic']
			rules = []
			debug = ""
			if len(r_fld) == 0 and r_upd=="":
			# Retrieve rules from file
			rules = output_format['rules']
			default = output_format['default']
			else:
			# Retrieve rules from given lists

			# Transform a single rule (not considered as a list with length
			# 1 by the templating system) into a list
			if not isinstance(r_fld, list):
			r_fld = [r_fld]
			r_val = [r_val]
			r_tpl = [r_tpl]

			for i in range(len(r_fld)):
			rule = {'field': r_fld[i],
			'value': r_val[i],
			'template': r_tpl[i]}
			rules.append(rule)
			# Execute action
			_ = gettext_set_language(ln)
			if r_upd.startswith(_("Remove Rule")):
			# Remove rule
			index = int(r_upd.split(" ")[-1]) -1
			del rules[index]
			elif r_upd.startswith(_("Save Changes")):
			# Save
			update_output_format_rules(bfo, rules, default)
			elif r_upd.startswith(_("Add New Rule")):
			# Add new rule
			rule = {'field': "",
			'value': "",
			'template': ""}
			rules.append(rule)
			else:
			# Get the action in 'args'
			# The action must be constructed from string of the kind:
			# + 5 or - 4 or + 5.x or -4.y
			for button_val in args.keys():#for all elements of form not handled yet
			action = button_val.split(" ")
			if action[0] == '-' or action[0] == '+':
			index = int(action[1].split(".")[0]) -1
			if action[0] == '-':
			# Decrease priority
			rule = rules[index]
			del rules[index]
			rules.insert(index + 1, rule)
			# debug = 'Decrease rule '+ str(index)
			break
			elif action[0] == '+':
			# Increase priority
			rule = rules[index]
			del rules[index]
			rules.insert(index - 1, rule)
			# debug = 'Increase rule ' + str(index)
			break


			editable = can_write_output_format(bfo)

			return bibformat_templates.tmpl_admin_output_format_show(ln,
			bfo,
			name,
			rules,
			default,
			format_templates,
			editable)

			def perform_request_output_format_show_dependencies(bfo, ln=cdslang):
			"""
			Show the dependencies of the given format.

			@param ln language
			@param bfo the filename of the output format to show
			"""
			output_format = bibformat_engine.get_output_format(code=bfo, with_attributes=True)
			name = output_format['attrs']['names']['generic']
			format_templates = get_templates_used_by_output(bfo)

			return bibformat_templates.tmpl_admin_output_format_show_dependencies(ln,
			name,
			bfo,
			format_templates)

			def perform_request_output_format_show_attributes(bfo, ln=cdslang):
			"""
			Page for output format names and description attributes edition.

			@param ln language
			@param bfo filename of output format to edit
			@return the main page for output format attributes edition
			"""
			output_format = bibformat_engine.get_output_format(code=bfo, with_attributes=True)

			name = output_format['attrs']['names']['generic']
			description = output_format['attrs']['description']
			content_type = output_format['attrs']['content_type']
			# Get translated names. Limit to long names now.
			# Translation are given in order of languages in language_list_long()
			names_trans = []
			for lang in language_list_long():
			name_trans = output_format['attrs']['names']['ln'].get(lang[0], "")
			names_trans.append({'lang':lang[1], 'trans':name_trans})

			editable = can_write_output_format(bfo)

			return bibformat_templates.tmpl_admin_output_format_show_attributes(ln,
			name,
			description,
			content_type,
			bfo,
			names_trans,
			editable)


			def perform_request_knowledge_bases_management(ln=cdslang):
			"""
			Returns the main page for knowledge bases management.

			@param ln language
			@return the main page for knowledge bases management
			"""
			kbs = bibformat_dblayer.get_kbs()

			return bibformat_templates.tmpl_admin_kbs_management(ln, kbs)

			def perform_request_knowledge_base_show(kb_id, ln=cdslang, sortby="to"):
			"""
			Show the content of a knowledge base

			@param ln language
			@param kb a knowledge base id
			@param sortby the sorting criteria ('from' or 'to')
			@return the content of the given knowledge base
			"""
			name = bibformat_dblayer.get_kb_name(kb_id)
			mappings = bibformat_dblayer.get_kb_mappings(name, sortby)

			return bibformat_templates.tmpl_admin_kb_show(ln, kb_id, name, mappings, sortby)


			def perform_request_knowledge_base_show_attributes(kb_id, ln=cdslang, sortby="to"):
			"""
			Show the attributes of a knowledge base

			@param ln language
			@param kb a knowledge base id
			@param sortby the sorting criteria ('from' or 'to')
			@return the content of the given knowledge base
			"""
			name = bibformat_dblayer.get_kb_name(kb_id)
			description = bibformat_dblayer.get_kb_description(name)

			return bibformat_templates.tmpl_admin_kb_show_attributes(ln, kb_id, name, description, sortby)


			def perform_request_knowledge_base_show_dependencies(kb_id, ln=cdslang, sortby="to"):
			"""
			Show the dependencies of a kb

			@param ln language
			@param kb a knowledge base id
			@param sortby the sorting criteria ('from' or 'to')
			@return the dependencies of the given knowledge base
			"""
			name = bibformat_dblayer.get_kb_name(kb_id)
			format_elements = get_elements_that_use_kb(name)

			return bibformat_templates.tmpl_admin_kb_show_dependencies(ln, kb_id, name, sortby, format_elements)

			def add_format_template():
			"""
			Adds a new format template (mainly create file with unique name)

			@return the filename of the created format
			"""
			(filename, name) = bibformat_engine.get_fresh_format_template_filename("Untitled")

			out = '<name>%(name)s</name><description></description>' % {'name':name}
			path = CFG_BIBFORMAT_TEMPLATES_PATH + os.sep + filename
			format = open(path, 'w')
			format.write(out)
			format.close

			return filename

			def delete_format_template(filename):
			"""
			Delete a format template given by its filename

			If format template is not writable, do not remove

			@param filename the format template filename
			"""
			if not can_write_format_template(filename):
			return

			path = CFG_BIBFORMAT_TEMPLATES_PATH + os.sep + filename
			os.remove(path)
			bibformat_engine.clear_caches()

			def update_format_template_code(filename, code=""):
			"""
			Saves code inside template given by filename
			"""
			format_template = bibformat_engine.get_format_template_attrs(filename)
			name = format_template['name']
			description = format_template['description']

			out = '''
			<name>%(name)s</name>
			<description>%(description)s</description>
			%(code)s
			''' % {'name':name, 'description':description, 'code':code}
			path = CFG_BIBFORMAT_TEMPLATES_PATH + os.sep + filename
			format = open(path, 'w')
			format.write(out)
			format.close

			bibformat_engine.clear_caches()

			def update_format_template_attributes(filename, name="", description="", duplicate=None):
			"""
			Saves name and description inside template given by filename.

			the filename must change according to name, and every output format
			having reference to filename must be updated.

			If name already exist, use fresh filename (we never overwrite other templates) amd
			remove old one.

			if duplicate is different from None and is not empty string, then it means that we must copy
			the code of the template whoose filename is given in 'duplicate' for the code
			of our template.

			@param duplicate the filename of a template that we want to copy
			@return the filename of the modified format
			"""
			if filename.endswith('.'+CFG_BIBFORMAT_FORMAT_TEMPLATE_EXTENSION):
			format_template = bibformat_engine.get_format_template(filename, with_attributes=True)
			if duplicate is not None and duplicate != "":
			format_template_to_copy = bibformat_engine.get_format_template(duplicate)
			code = format_template_to_copy['code']
			else:
			code = format_template['code']
			if format_template['attrs']['name'] != name:
			# Name has changed, so update filename
			old_filename = filename
			old_path = CFG_BIBFORMAT_TEMPLATES_PATH + os.sep + old_filename
			# Remove old one
			os.remove(old_path)

			(filename, name) = bibformat_engine.get_fresh_format_template_filename(name)

			# Change output formats that calls this template
			output_formats = bibformat_engine.get_output_formats()

			for output_format_filename in output_formats:
			if can_read_output_format(output_format_filename) and can_write_output_format(output_format_filename):
			output_path = CFG_BIBFORMAT_OUTPUTS_PATH + os.sep + output_format_filename
			format = open(output_path, 'r')
			output_text = format.read()
			format.close
			output_pattern = re.compile("---(\s)*" + old_filename, re.IGNORECASE)
			mod_output_text = output_pattern.sub("--- " + filename, output_text)
			if output_text != mod_output_text:
			format = open(output_path, 'w')
			format.write(mod_output_text)
			format.close

			description = cgi.escape(description)
			name = cgi.escape(name)
			# Write updated format template
			out = '''<name>%(name)s</name><description>%(description)s</description>%(code)s''' % {'name':name,
			'description':description,
			'code':code}

			path = CFG_BIBFORMAT_TEMPLATES_PATH + os.sep + filename
			format = open(path, 'w')
			format.write(out)
			format.close

			bibformat_engine.clear_caches()

			return filename

			def add_output_format():
			"""
			Adds a new output format (mainly create file with unique name)

			@return the code of the created format
			"""
			(filename, code) = bibformat_engine.get_fresh_output_format_filename("UNTLD")

			# Add entry in database
			bibformat_dblayer.add_output_format(code)
			bibformat_dblayer.set_output_format_name(code, "Untitled", lang="generic")
			bibformat_dblayer.set_output_format_content_type(code, "text/html")

			# Add file
			out = ""
			path = CFG_BIBFORMAT_OUTPUTS_PATH + os.sep + filename
			format = open(path, 'w')
			format.write(out)
			format.close

			return code

			def delete_output_format(code):
			"""
			Delete a format template given by its code

			if file is not writable, don't remove

			@param code the 6 letters code of the output format to remove
			"""
			if not can_write_output_format(code):
			return

			# Remove entry from database
			bibformat_dblayer.remove_output_format(code)

			# Remove file
			filename = bibformat_engine.resolve_output_format_filename(code)
			path = CFG_BIBFORMAT_OUTPUTS_PATH + os.sep + filename
			os.remove(path)

			bibformat_engine.clear_caches()


			def update_output_format_rules(code, rules=[], default=""):
			"""
			Saves rules inside output format given by code
			"""

			# Generate output format syntax
			# Try to group rules by field
			previous_field = ""
			out = ""
			for rule in rules:
			field = rule["field"]
			value = rule["value"]
			template = rule["template"]
			if previous_field != field:
			out += "tag %s:\n" % field

			out +="%(value)s --- %(template)s\n" % {'value':value, 'template':template}
			previous_field = field

			out += "default: %s" % default
			filename = bibformat_engine.resolve_output_format_filename(code)
			path = CFG_BIBFORMAT_OUTPUTS_PATH + os.sep + filename
			format = open(path, 'w')
			format.write(out)
			format.close

			bibformat_engine.clear_caches()

			def update_output_format_attributes(code, name="", description="", new_code="", content_type="", names_trans=[]):
			"""
			Saves name and description inside output format given by filename.

			If new_code already exist, use fresh code (we never overwrite other output).

			@param description the new description
			@param name the new name
			@param code the new short code (== new bfo) of the output format
			@param code the code of the output format to update
			@param names_trans the translations in the same order as the languages from get_languages()
			@param content_type the new content_type of the output format
			@return the filename of the modified format
			"""

			bibformat_dblayer.set_output_format_description(code, description)
			bibformat_dblayer.set_output_format_content_type(code, content_type)
			bibformat_dblayer.set_output_format_name(code, name, lang="generic")
			i = 0
			for lang in language_list_long():
			if names_trans[i] != "":
			bibformat_dblayer.set_output_format_name(code, names_trans[i], lang[0])
			i += 1

			new_code = new_code.upper()
			if code != new_code:
			# If code has changed, we must update filename with a new unique code
			old_filename = bibformat_engine.resolve_output_format_filename(code)
			old_path = CFG_BIBFORMAT_OUTPUTS_PATH + os.sep + old_filename
			(new_filename, new_code) = bibformat_engine.get_fresh_output_format_filename(new_code)
			new_path = CFG_BIBFORMAT_OUTPUTS_PATH + os.sep + new_filename
			os.rename(old_path, new_path)
			bibformat_dblayer.change_output_format_code(code, new_code)

			bibformat_engine.clear_caches()

			return new_code

			def add_kb_mapping(kb_name, key, value=""):
			"""
			Adds a new mapping to given kb

			@param kb_name the name of the kb where to insert the new value
			@param key the key of the mapping
			@param value the value of the mapping
			"""
			bibformat_dblayer.add_kb_mapping(kb_name, key, value)

			def remove_kb_mapping(kb_name, key):
			"""
			Delete an existing kb mapping in kb

			@param kb_name the name of the kb where to insert the new value
			@param key the key of the mapping
			"""
			bibformat_dblayer.remove_kb_mapping(kb_name, key)

			def update_kb_mapping(kb_name, old_key, key, value):
			"""
			Update an existing kb mapping with key old_key with a new key and value

			@param kb_name the name of the kb where to insert the new value
			@param the key of the mapping in the kb
			@param key the new key of the mapping
			@param value the new value of the mapping
			"""
			bibformat_dblayer.update_kb_mapping(kb_name, old_key, key, value)

			def kb_exists(kb_name):
			"""Returns True if a kb with the given name exists"""
			return bibformat_dblayer.kb_exists(kb_name)

			def get_kb_name(kb_id):
			"""
			Returns the name of the kb given by id
			"""
			return bibformat_dblayer.get_kb_name(kb_id)

			def update_kb_attributes(kb_name, new_name, new_description):
			"""
			Updates given kb_name with a new name and new description

			@param kb_name the name of the kb to update
			@param new_name the new name for the kb
			@param new_description the new description for the kb
			"""
			bibformat_dblayer.update_kb(kb_name, new_name, new_description)

			def add_kb(kb_name="Untitled"):
			"""
			Adds a new kb in database, and returns its id
			The name of the kb will be 'Untitled#'
			such that it is unique.

			@param kb_name the name of the kb
			@return the id of the newly created kb
			"""
			name = kb_name
			i = 1
			while bibformat_dblayer.kb_exists(name):
			name = kb_name + " " + str(i)
			i += 1

			kb_id = bibformat_dblayer.add_kb(name, "")

			return kb_id

			def delete_kb(kb_name):
			"""
			Deletes given kb from database
			"""
			bibformat_dblayer.delete_kb(kb_name)

			def can_read_format_template(filename):
			"""
			Returns 0 if we have read permission on given format template, else
			returns other integer
			"""
			path = "%s%s%s" % (CFG_BIBFORMAT_TEMPLATES_PATH, os.sep, filename)
			return os.access(path, os.R_OK)

			def can_read_output_format(bfo):
			"""
			Returns 0 if we have read permission on given output format, else
			returns other integer
			"""
			filename = bibformat_engine.resolve_output_format_filename(bfo)
			path = "%s%s%s" % (CFG_BIBFORMAT_OUTPUTS_PATH, os.sep, filename)
			return os.access(path, os.R_OK)

			def can_read_format_element(name):
			"""
			Returns 0 if we have read permission on given format element, else
			returns other integer
			"""

			filename = bibformat_engine.resolve_format_element_filename(name)
			path = "%s%s%s" % (CFG_BIBFORMAT_ELEMENTS_PATH, os.sep, filename)
			return os.access(path, os.R_OK)

			def can_write_format_template(bft):
			"""
			Returns 0 if we have write permission on given format template, else
			returns other integer
			"""
			if not can_read_format_template(bft):
			return False

			path = "%s%s%s" % (CFG_BIBFORMAT_TEMPLATES_PATH, os.sep, bft)
			return os.access(path, os.W_OK)

			def can_write_output_format(bfo):
			"""
			Returns 0 if we have write permission on given output format, else
			returns other integer
			"""
			if not can_read_output_format(bfo):
			return False

			filename = bibformat_engine.resolve_output_format_filename(bfo)
			path = "%s%s%s" % (CFG_BIBFORMAT_OUTPUTS_PATH, os.sep, filename)
			return os.access(path, os.W_OK)

			def can_write_etc_bibformat_dir():
			"""
			Returns true if we can write in etc/bibformat dir.
			"""
			path = "%s%sbibformat" % (etcdir, os.sep)
			return os.access(path, os.W_OK)

			def get_outputs_that_use_template(filename):
			"""
			Returns a list of output formats that call the given format template.
			The returned output formats also give their dependencies on tags.

			We don't return the complete output formats but some reference to
			them (filename + names)

			[ {'filename':"filename_1.bfo"
			'names': {'en':"a name", 'fr': "un nom", 'generic':"a name"}
			'tags': ['710__a', '920__']
			},
			...
			]

			Returns output formats references sorted by (generic) name

			@param filename a format template filename
			"""
			output_formats_list = {}
			tags = []
			output_formats = bibformat_engine.get_output_formats(with_attributes=True)
			for output_format in output_formats:
			name = output_formats[output_format]['attrs']['names']['generic']
			# First look at default template, and add it if necessary
			if output_formats[output_format]['default'] == filename:
			output_formats_list[name] = {'filename':output_format,
			'names':output_formats[output_format]['attrs']['names'],
			'tags':[]}
			# Second look at each rule
			found = False
			for rule in output_formats[output_format]['rules']:
			if rule['template'] == filename:
			found = True
			tags.append(rule['field']) #Also build dependencies on tags

			# Finally add dependency on template from rule (overwrite default dependency,
			# which is weaker in term of tag)
			if found:
			output_formats_list[name] = {'filename':output_format,
			'names':output_formats[output_format]['attrs']['names'],
			'tags':tags}



			keys = output_formats_list.keys()
			keys.sort()
			return map(output_formats_list.get, keys)

			def get_elements_used_by_template(filename):
			"""
			Returns a list of format elements that are called by the given format template.
			The returned elements also give their dependencies on tags.

			Dependencies on tag might be approximative. See get_tags_used_by_element()
			doc string.

			We must handle usage of bfe_field in a special way if we want to retrieve
			used tag: used tag is given in "tag" parameter, not inside element code.

			The list is returned sorted by name

			[ {'filename':"filename_1.py"
			'name':"filename_1"
			'tags': ['710__a', '920__']
			},
			...
			]

			Returns elements sorted by name

			@param filename a format template filename
			"""
			format_elements = {}
			format_template = bibformat_engine.get_format_template(filename=filename, with_attributes=True)
			code = format_template['code']
			format_elements_iter = bibformat_engine.pattern_tag.finditer(code)
			for result in format_elements_iter:
			function_name = result.group("function_name").lower()
			if function_name is not None and not format_elements.has_key(function_name) \
			and not function_name == "field":
			filename = bibformat_engine.resolve_format_element_filename("BFE_"+function_name)
			if filename is not None:
			tags = get_tags_used_by_element(filename)
			format_elements[function_name] = {'name':function_name.lower(),
			'filename':filename,
			'tags':tags}
			elif function_name == "field":
			# Handle bfe_field element in a special way
			if not format_elements.has_key(function_name):
			#Indicate usage of bfe_field if not already done
			filename = bibformat_engine.resolve_format_element_filename("BFE_"+function_name)
			format_elements[function_name] = {'name':function_name.lower(),
			'filename':filename,
			'tags':[]}
			# Retrieve value of parameter "tag"
			all_params = result.group('params')
			function_params_iterator = bibformat_engine.pattern_function_params.finditer(all_params)
			for param_match in function_params_iterator:
			name = param_match.group('param')
			if name == "tag":
			value = param_match.group('value')
			if not value in format_elements[function_name]['tags']:
			format_elements[function_name]['tags'].append(value)
			break

			keys = format_elements.keys()
			keys.sort()
			return map(format_elements.get, keys)


			# Format Elements Dependencies
			##

			def get_tags_used_by_element(filename):
			"""
			Returns a list of tags used by given format element

			APPROXIMATIVE RESULTS: the tag are retrieved in field(), fields()
			and control_field() function. If they are used computed, or saved
			in a variable somewhere else, they are not retrieved
			@TODO: There is room for improvements. For example catch
			call to BibRecord functions.

			Returns tags sorted by value

			@param filename a format element filename
			"""
			tags = {}

			format_element = bibformat_engine.get_format_element(filename)
			if format_element is None:
			return []
			elif format_element['type']=="field":
			tags = format_element['attrs']['tags']
			return tags

			filename = bibformat_engine.resolve_format_element_filename(filename)
			path = CFG_BIBFORMAT_ELEMENTS_PATH + os.sep + filename
			format = open(path, 'r')
			code = format.read()
			format.close
			tags_pattern = re.compile('''
			(field\|fields\|control_field)\s* #Function call
			\(\s* #Opening parenthesis
			[\'"]+ #Single or double quote
			(?P<tag>.+?) #Tag
			[\'"]+\s* #Single or double quote
			(,[^\)]+)* #Additional function param
			\) #Closing parenthesis
			''', re.VERBOSE \| re.MULTILINE)

			tags_iter = tags_pattern.finditer(code)
			for result in tags_iter:
			tags[result.group("tag")] = result.group("tag")

			return tags.values()

			def get_templates_that_use_element(name):
			"""
			Returns a list of format templates that call the given format element.
			The returned format templates also give their dependencies on tags.

			[ {'filename':"filename_1.bft"
			'name': "a name"
			'tags': ['710__a', '920__']
			},
			...
			]

			Returns templates sorted by name

			@param name a format element name
			"""
			format_templates = {}
			tags = []
			files = os.listdir(CFG_BIBFORMAT_TEMPLATES_PATH) #Retrieve all templates
			for possible_template in files:
			if possible_template.endswith(CFG_BIBFORMAT_FORMAT_TEMPLATE_EXTENSION):
			format_elements = get_elements_used_by_template(possible_template) #Look for elements used in template
			format_elements = map(lambda x: x['name'].lower(), format_elements)
			try: #Look for element
			format_elements.index(name.lower()) #If not found, get out of "try" statement

			format_template = bibformat_engine.get_format_template(filename=possible_template, with_attributes=True)
			template_name = format_template['attrs']['name']
			format_templates[template_name] = {'name':template_name,
			'filename':possible_template}
			except:
			print name+" not found in "+str(format_elements)
			pass

			keys = format_templates.keys()
			keys.sort()
			return map(format_templates.get, keys)

			# Output Formats Dependencies
			##

			def get_templates_used_by_output(code):
			"""
			Returns a list of templates used inside an output format give by its code
			The returned format templates also give their dependencies on elements and tags

			[ {'filename':"filename_1.bft"
			'name': "a name"
			'elements': [{'filename':"filename_1.py", 'name':"filename_1", 'tags': ['710__a', '920__']
			}, ...]
			},
			...
			]

			Returns templates sorted by name

			"""
			format_templates = {}
			output_format = bibformat_engine.get_output_format(code, with_attributes=True)

			filenames = map(lambda x: x['template'], output_format['rules'])
			if output_format['default'] != "":
			filenames.append(output_format['default'])

			for filename in filenames:
			template = bibformat_engine.get_format_template(filename, with_attributes=True)
			name = template['attrs']['name']
			elements = get_elements_used_by_template(filename)
			format_templates[name] = {'name':name,
			'filename':filename,
			'elements':elements}


			keys = format_templates.keys()
			keys.sort()
			return map(format_templates.get, keys)


			# Knowledge Bases Dependencies
			##

			def get_elements_that_use_kb(name):
			"""
			Returns a list of elements that call given kb

			[ {'filename':"filename_1.py"
			'name': "a name"
			},
			...
			]

			Returns elements sorted by name
			"""

			format_elements = {}
			files = os.listdir(CFG_BIBFORMAT_ELEMENTS_PATH) #Retrieve all elements in files
			for filename in files:
			if filename.endswith(".py"):
			path = CFG_BIBFORMAT_ELEMENTS_PATH + os.sep + filename
			format = open(path, 'r')
			code = format.read()
			format.close
			# Search for use of kb inside code
			kb_pattern = re.compile('''
			(bfo.kb)\s* #Function call
			\(\s* #Opening parenthesis
			[\'"]+ #Single or double quote
			(?P<kb>%s) #kb
			[\'"]+\s* #Single or double quote
			, #comma
			''' % name, re.VERBOSE \| re.MULTILINE \| re.IGNORECASE)

			result = kb_pattern.search(code)
			if result is not None:
			name = ("".join(filename.split(".")[:-1])).lower()
			if name.startswith("bfe_"):
			name = name[4:]
			format_elements[name] = {'filename':filename, 'name': name}


			keys = format_elements.keys()
			keys.sort()
			return map(format_elements.get, keys)

			# Validation tools
			##

			def perform_request_format_validate(ln=cdslang, bfo=None, bft=None, bfe=None):
			"""
			Returns a page showing the status of an output format or format
			template or format element. This page is called from output
			formats management page or format template management page or
			format elements documentation.

			The page only shows the status of one of the format, depending on
			the specified one. If multiple are specified, shows the first one.

			@param ln language
			@param bfo an output format 6 chars code
			@param bft a format element filename
			@param bfe a format element name
			"""

			if bfo is not None:
			errors = check_output_format(bfo)
			messages = get_msgs_for_code_list(code_list = errors, ln=ln)
			elif bft is not None:
			errors = check_format_template(bft, checking=1)
			messages = get_msgs_for_code_list(code_list = errors, ln=ln)
			elif bfe is not None:
			errors = check_format_element(bfe)
			messages = get_msgs_for_code_list(code_list = errors, ln=ln)

			if messages is None:
			messages = []

			messages = map(lambda x: encode_for_xml(x[1]), messages)

			return bibformat_templates.tmpl_admin_validate_format(ln, messages)


			def check_output_format(code):
			"""
			Returns the list of errors in the output format given by code

			The errors are the formatted errors defined in bibformat_config.py file.

			@param code the 6 chars code of the output format to check
			@return a list of errors
			"""
			errors = []
			filename = bibformat_engine.resolve_output_format_filename(code)
			if can_read_output_format(code):
			path = CFG_BIBFORMAT_OUTPUTS_PATH + os.sep + filename
			format = open(path)
			current_tag = ''
			i = 0
			for line in format:
			i += 1
			if line.strip() == "":
			# Ignore blank lines
			continue
			clean_line = line.rstrip("\n\r ") #remove spaces and eol
			if line.strip().endswith(":") or (line.strip().lower().startswith("tag") and line.find('---') == -1):
			# Check tag
			if not clean_line.endswith(":"):
			# Column misses at the end of line
			errors.append(("ERR_BIBFORMAT_OUTPUT_RULE_FIELD_COL", line, i))
			if not clean_line.lower().startswith("tag"):
			# Tag keyword is missing
			errors.append(("ERR_BIBFORMAT_OUTPUT_TAG_MISSING", line, i))
			elif not clean_line.startswith("tag"):
			# Tag was not lower case
			errors.append(("ERR_BIBFORMAT_OUTPUT_WRONG_TAG_CASE", line, i))

			clean_line = clean_line.rstrip(": ") #remove : and spaces at the end of line

			current_tag = "".join(clean_line.split()[1:]).strip() #the tag starts at second position
			if len(clean_line.split()) > 2: #We should only have 'tag' keyword and tag
			errors.append(("ERR_BIBFORMAT_INVALID_OUTPUT_RULE_FIELD", i))
			else:
			if len(check_tag(current_tag)) > 0:
			# Invalid tag
			errors.append(("ERR_BIBFORMAT_INVALID_OUTPUT_RULE_FIELD_tag", current_tag, i))
			if not clean_line.startswith("tag"):
			errors.append(("ERR_BIBFORMAT_INVALID_OUTPUT_RULE_FIELD", i))

			elif line.find('---') != -1:
			# Check condition
			if current_tag == "":
			errors.append(("ERR_BIBFORMAT_OUTPUT_CONDITION_OUTSIDE_FIELD", line, i))

			words = line.split('---')
			if len(words) != 2:
			errors.append(("ERR_BIBFORMAT_INVALID_OUTPUT_CONDITION", line, i))
			template = words[-1].strip()
			path = CFG_BIBFORMAT_TEMPLATES_PATH + os.sep + template
			if not os.path.exists(path):
			errors.append(("ERR_BIBFORMAT_WRONG_OUTPUT_RULE_TEMPLATE_REF", template, i))

			elif line.find(':') != -1 or (line.strip().lower().startswith("default") and line.find('---') == -1):
			# Check default template
			clean_line = line.strip()
			if line.find(':') == -1:
			# Column misses after default
			errors.append(("ERR_BIBFORMAT_OUTPUT_RULE_DEFAULT_COL", line, i))
			if not clean_line.startswith("default"):
			# Default keyword is missing
			errors.append(("ERR_BIBFORMAT_OUTPUT_DEFAULT_MISSING", line, i))
			if not clean_line.startswith("default"):
			# Default was not lower case
			errors.append(("ERR_BIBFORMAT_OUTPUT_WRONG_DEFAULT_CASE", line, i))
			default = "".join(line.split(':')[1]).strip()
			path = CFG_BIBFORMAT_TEMPLATES_PATH + os.sep + default
			if not os.path.exists(path):
			errors.append(("ERR_BIBFORMAT_WRONG_OUTPUT_RULE_TEMPLATE_REF", default, i))

			else:
			# Check others
			errors.append(("ERR_BIBFORMAT_WRONG_OUTPUT_LINE", line, i))
			else:
			errors.append(("ERR_BIBFORMAT_CANNOT_READ_OUTPUT_FILE", filename, ""))

			return errors

			def check_format_template(filename, checking=0):
			"""
			Returns the list of errors in the format template given by its filename

			The errors are the formatted errors defined in bibformat_config.py file.

			@param filename the filename of the format template to check
			@param checking the level of checking (0:basic, >=1 extensive (time-consuming))
			@return a list of errors
			"""
			errors = []
			if can_read_format_template(filename):#Can template be read?
			if filename.endswith('.'+CFG_BIBFORMAT_FORMAT_TEMPLATE_EXTENSION):
			#format_template = bibformat_engine.get_format_template(filename, with_attributes=True)
			format = open("%s%s%s" % (CFG_BIBFORMAT_TEMPLATES_PATH, os.sep, filename))
			code = format.read()
			format.close()
			# Look for name
			match = bibformat_engine.pattern_format_template_name.search(code)
			if match is None:#Is tag <name> defined in template?
			errors.append(("ERR_BIBFORMAT_TEMPLATE_HAS_NO_NAME", filename))

			# Look for description
			match = bibformat_engine.pattern_format_template_desc.search(code)
			if match is None:#Is tag <description> defined in template?
			errors.append(("ERR_BIBFORMAT_TEMPLATE_HAS_NO_DESCRIPTION", filename))

			format_template = bibformat_engine.get_format_template(filename, with_attributes=False)
			code = format_template['code']
			# Look for calls to format elements
			# Check existence of elements and attributes used in call
			elements_call = bibformat_engine.pattern_tag.finditer(code)
			for element_match in elements_call:
			element_name = element_match.group("function_name")
			filename = bibformat_engine.resolve_format_element_filename(element_name)
			if filename is None and not bibformat_dblayer.tag_exists_for_name(element_name): #Is element defined?
			errors.append(("ERR_BIBFORMAT_TEMPLATE_CALLS_UNDEFINED_ELEM", filename, element_name))
			else:
			format_element = bibformat_engine.get_format_element(element_name, with_built_in_params=True)
			if format_element is None:#Can element be loaded?
			if not can_read_format_element(element_name):
			errors.append(("ERR_BIBFORMAT_TEMPLATE_CALLS_UNREADABLE_ELEM", filename, element_name))
			else:
			errors.append(("ERR_BIBFORMAT_TEMPLATE_CALLS_UNLOADABLE_ELEM", element_name, filename))
			else:
			# Are the parameters used defined in element?
			params_call = bibformat_engine.pattern_function_params.finditer(element_match.group())
			all_params = {}
			for param_match in params_call:
			param = param_match.group("param")
			value = param_match.group("value")
			all_params[param] = value
			allowed_params = []

			# Built-in params
			for allowed_param in format_element['attrs']['builtin_params']:
			allowed_params.append(allowed_param['name'])

			# Params defined in element
			for allowed_param in format_element['attrs']['params']:
			allowed_params.append(allowed_param['name'])

			if not param in allowed_params:
			errors.append(("ERR_BIBFORMAT_TEMPLATE_WRONG_ELEM_ARG",
			element_name, param, filename))

			# The following code is too much time consuming. Only do where really requested
			if checking > 0:
			# Try to evaluate, with any object and pattern
			recIDs = perform_request_search()
			if len(recIDs) > 0:
			recID = recIDs[0]
			bfo = bibformat_engine.BibFormatObject(recID, search_pattern="Test")
			(result, errors_) = bibformat_engine.eval_format_element(format_element, bfo, all_params, verbose=7)
			errors.extend(errors_)

			else:# Template cannot be read
			errors.append(("ERR_BIBFORMAT_CANNOT_READ_TEMPLATE_FILE", filename, ""))
			return errors

			def check_format_element(name):
			"""
			Returns the list of errors in the format element given by its name

			The errors are the formatted errors defined in bibformat_config.py file.

			@param name the name of the format element to check
			@return a list of errors
			"""
			errors = []
			filename = bibformat_engine.resolve_format_element_filename(name)
			if filename is not None:#Can element be found in files?
			if can_read_format_element(name):#Can element be read?
			# Try to load
			try:
			module_name = filename
			if module_name.endswith(".py"):
			module_name = module_name[:-3]

			module = __import__("invenio.bibformat_elements."+module_name)
			function_format = module.bibformat_elements.__dict__[module_name].format

			# Try to evaluate, with any object and pattern
			recIDs = perform_request_search()
			if len(recIDs) > 0:
			recID = recIDs[0]
			bfo = bibformat_engine.BibFormatObject(recID, search_pattern="Test")
			element = bibformat_engine.get_format_element(name)
			(result, errors_) = bibformat_engine.eval_format_element(element, bfo, verbose=7)
			errors.extend(errors_)
			except Exception, e:
			errors.append(("ERR_BIBFORMAT_IN_FORMAT_ELEMENT", name, e))
			else:
			errors.append(("ERR_BIBFORMAT_CANNOT_READ_ELEMENT_FILE", filename, ""))
			elif bibformat_dblayer.tag_exists_for_name(name):#Can element be found in database?
			pass
			else:
			errors.append(("ERR_BIBFORMAT_CANNOT_RESOLVE_ELEMENT_NAME", name))

			return errors

			def check_tag(tag):
			"""
			Checks the validity of a tag
			"""
			errors = []
			return errors


			def perform_request_dreamweaver_floater():
			"""
			Returns a floater for Dreamweaver with all Format Elements avalaible.
			"""
			# Get format elements lists of attributes
			elements = bibformat_engine.get_format_elements(with_built_in_params=True)

			keys = elements.keys()
			keys.sort()
			elements = map(elements.get, keys)

			def filter_elem(element):
			"""Keep element if is string representation contains all keywords of search_doc_pattern,
			and if its name does not start with a number (to remove 'garbage' from elements in tags table)"""
			if element['type'] != 'python' and \
			element['attrs']['name'][0] in ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9']:
			return False
			else:
			return True

			elements = filter(filter_elem, elements)



			return bibformat_templates.tmpl_dreamweaver_floater(cdslang, elements)

R3600/modules/bibformat/lib/bibformatadminlib.pya0aedbdf2c3amaint-1.1

bibformatadminlib.pyView Options

R3600/modules/bibformat/lib/bibformatadminlib.py
a0aedbdf2c3amaint-1.1

bibformatadminlib.py
View Options