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//usr/lib/python2.4/site-packages/_xmlplus/xslt/NumberElement.py
######################################################################## # # File Name: NumberElement.py # # """ Implementation of the XSLT Spec number stylesheet element. WWW: http://4suite.com/4XSLT e-mail: support@4suite.com Copyright (c) 1999-2000 Fourthought Inc, USA. All Rights Reserved. See http://4suite.com/COPYRIGHT for license and copyright information """ import re, string from xml.dom import EMPTY_NAMESPACE from xml.xslt import Roman import xml.xslt import xml.dom.ext from xml.dom import Node from xml.xslt import XsltElement, XsltException, Error, AttributeValueTemplate from xml.xslt import XPatternParser from xml.xpath import XPathParser, Conversions #Pattern for format tokens (see spec 7.7.1) g_formatToken = re.compile(r"([^a-zA-Z0-9]*)([a-zA-Z0-9]+)([^a-zA-Z0-9]*)") class NumberElement(XsltElement): legalAttrs = ('level', 'count', 'from', 'value', 'format', 'lang', 'letter-value', 'grouping-separator', 'grouping-size',) def __init__(self, doc, uri=xml.xslt.XSL_NAMESPACE, localName='number', prefix='xsl', baseUri=''): XsltElement.__init__(self, doc, uri, localName, prefix, baseUri) def setup(self): self._nss = {} self._level = None self._count = None self._from = None self._value = None self._format = None self._lang = None self._letter_value = None self._grouping_separator = None self._grouping_size = None self._value_expr = None self._sibling_expr = None self._count_prior_doc_order_expr = None self._count_pattern = None self._ancorself_expr = None path_parser = XPathParser.XPathParser() pattern_parser = XPatternParser.XPatternParser() self.__dict__['_level'] = self.getAttributeNS(EMPTY_NAMESPACE, 'level') or 'single' if self._level not in ['single', 'multiple', 'any']: raise XsltException(Error.ILLEGAL_NUMBER_LEVEL_VALUE) self.__dict__['_count'] = self.getAttributeNS(EMPTY_NAMESPACE, 'count') self.__dict__['_from'] = self.getAttributeNS(EMPTY_NAMESPACE, 'from') self.__dict__['_value'] = self.getAttributeNS(EMPTY_NAMESPACE, 'value') format = self.getAttributeNS(EMPTY_NAMESPACE, 'format') self.__dict__['_format'] = format and AttributeValueTemplate.AttributeValueTemplate(format) or None lang = self.getAttributeNS(EMPTY_NAMESPACE, 'lang') self.__dict__['_lang'] = lang and AttributeValueTemplate.AttributeValueTemplate(lang) or None letter_value = self.getAttributeNS(EMPTY_NAMESPACE, 'letter-value') self.__dict__['_letter_value'] = letter_value and AttributeValueTemplate.AttributeValueTemplate(letter_value) or None grouping_separator = self.getAttributeNS(EMPTY_NAMESPACE, 'grouping-separator') self.__dict__['_grouping_separator'] = grouping_separator and AttributeValueTemplate.AttributeValueTemplate(grouping_separator) or None grouping_size = self.getAttributeNS(EMPTY_NAMESPACE, 'grouping-size') self.__dict__['_grouping_size'] = grouping_size and AttributeValueTemplate.AttributeValueTemplate(grouping_size) or None self.__dict__['_nss'] = xml.dom.ext.GetAllNs(self) #Prep computations if not self._count: #FIXME: Handle other node types???? self._count = '*[name()=name(current())]' self._count_pattern = pattern_parser.parsePattern(self._count) ancestor_or_self = "ancestor-or-self::node()" if self._from: ancestor_or_self = ancestor_or_self + '[ancestor::%s]'%(self._from) self._ancorself_expr = path_parser.parseExpression(ancestor_or_self) if self._value: self._value_expr = path_parser.parseExpression(self._value) self._sibling_expr = None self._count_prior_doc_order_expr = None else: self._sibling_expr = path_parser.parseExpression('preceding-sibling::node()') patterns = pattern_parser.parsePattern(self._count)._patterns count_prior_doc_order = '' if self._from: froms = pattern_parser.parsePattern(self._from)._patterns pred = "[" for fro in froms: pred = pred + 'ancestor::' + repr(fro) if fro != froms[-1]: pred = pred + '|' pred = pred + ']' for count in patterns: if self._from: count_prior_doc_order = count_prior_doc_order + 'ancestor-or-self::' + repr(count) + pred + '|preceding::' +repr(count) + pred else: count_prior_doc_order = count_prior_doc_order + 'ancestor-or-self::' + repr(count) + '|preceding::' + repr(count) if count != patterns[-1]: count_prior_doc_order = count_prior_doc_order + '|' self._count_prior_doc_order_expr = path_parser.parseExpression(count_prior_doc_order) return def instantiate(self, context, processor, nodeList=None, specList=None): if nodeList is None: nodeList = [] if specList is None: specList = [] origState = context.copy() context.setNamespaces(self._nss) if self._format: format = self._format.evaluate(context) else: format = '1' if self._grouping_separator: grouping_separator = self._grouping_separator.evaluate(context) else: grouping_separator = ',' if self._grouping_size: grouping_size = self._grouping_size.evaluate(context) else: grouping_size = '3' if grouping_separator and grouping_size: try: grouping_size = string.atoi(grouping_size) except ValueError: raise XsltException(Error.ILLEGAL_NUMBER_GROUPING_SIZE_VALUE) else: grouping_separator = None grouping_size = None if self._letter_value: letter_value = self._letter_value.evaluate(context) if letter_value not in ['alphabetic', 'traditional']: raise XsltException(Error.ILLEGAL_NUMBER_LETTER_VALUE_VALUE) value = [] tempState = context.copyNodePosSize() if self._value: result = self._value_expr.evaluate(context) value = [Conversions.NumberValue(result)] elif self._level == 'single': ancorself_result = self._ancorself_expr.evaluate(context) ancorself_result.reverse() for node in ancorself_result: context.node = node if self._count_pattern.match(context, context.node): break sibling_result = self._sibling_expr.evaluate(context) value = 1 for node in sibling_result: context.node = node if self._count_pattern.match(context, context.node): value = value + 1 value = [value] elif self._level == 'multiple': ancorself_result = self._ancorself_expr.evaluate(context) ancorself_result.reverse() count_result = [] for node in ancorself_result: context.node = node if self._count_pattern.match(context, context.node): count_result.append(node) context.setNodePosSize(tempState) value = [] for node in count_result: context.node = node sibling_result = self._sibling_expr.evaluate(context) lvalue = 1 for node in sibling_result: context.node = node if self._count_pattern.match(context, context.node): lvalue = lvalue + 1 value.insert(0, lvalue) elif self._level == 'any': count_result = self._count_prior_doc_order_expr.evaluate(context) value = [len(count_result)] context.setNodePosSize(tempState) format_tokens = [] format_separators = [] re_groups = g_formatToken.findall(format) if not re_groups: raise XsltException(Error.ILLEGAL_NUMBER_FORMAT_VALUE) pre_string = re_groups[0][0] post_string = re_groups[-1][2] for group in re_groups: format_tokens.append(group[1]) format_separators.append(group[2]) format_separators = ['.'] + format_separators[:-1] result = pre_string curr_index = 0 lft = len(format_tokens) lfs = len(format_separators) for number in value: if curr_index: result = result + curr_sep if curr_index < lft: curr_ft = format_tokens[curr_index] curr_sep = format_separators[curr_index] curr_index = curr_index + 1 else: curr_ft = format_tokens[-1] curr_sep = format_separators[-1] numstr = str(number) if curr_ft[-1] == '1': subresult = Group( '0'*(len(curr_ft)-len(numstr))+numstr, grouping_size, grouping_separator ) result = result + subresult elif curr_ft == 'A': digits = Base26(number) #FIXME: faster with reduce for dig in digits: result = result + chr(ord('A') + dig - 1) elif curr_ft == 'a': digits = Base26(number) for dig in digits: result = result + chr(ord('a') + dig - 1) elif curr_ft == 'I': result = result + Roman.IToRoman(number) elif curr_ft == 'i': result = result + string.lower(Roman.IToRoman(number)) else: raise XsltException(Error.ILLEGAL_NUMBER_FORMAT_VALUE) processor.writers[-1].text(result + post_string) context.set(origState) return (context,) def __getinitargs__(self): return (None, self.namespaceURI, self.localName, self.prefix, self.baseUri) def __getstate__(self): base_state = XsltElement.__getstate__(self) new_state = (base_state, self._nss, self._level, self._count, self._from, self._value, self._format, self._lang, self._letter_value, self._grouping_separator, self._grouping_size, self._value_expr, self._sibling_expr, self._count_prior_doc_order_expr, self._count_pattern, self._ancorself_expr) return new_state def __setstate__(self, state): XsltElement.__setstate__(self, state[0]) self._nss = state[1] self._level = state[2] self._count = state[3] self._from = state[4] self._value = state[5] self._format = state[6] self._lang = state[7] self._letter_value = state[8] self._grouping_separator = state[9] self._grouping_size = state[10] self._value_expr = state[11] self._sibling_expr = state[12] self._count_prior_doc_order_expr = state[13] self._count_pattern = state[14] self._ancorself_expr = state[15] return def Base26(n): #FIXME: There must be an easier/faster way in Python n = int(n) result = [] factor = 1 while factor < n: factor = factor * 26 factor = factor / 26 while n >= 26: digit = n / factor result.append(digit) n = n - factor * digit factor = factor / 26 result.append(n) return result def Group(numstr, size, sep): if not sep: return numstr result = '' start_seg = 0 end_seg = len(numstr) % size while end_seg <= len(numstr): if end_seg: if end_seg == len(numstr): result = result + numstr[start_seg:end_seg] else: result = result + numstr[start_seg:end_seg] + sep start_seg = end_seg end_seg = end_seg + size return result ##Note: emacs can uncomment the ff automatically. ##To: xsl-list@mulberrytech.com ##Subject: Re: number format test ##From: MURAKAMI Shinyu <murakami@nadita.com> ##Date: Thu, 3 Aug 2000 01:18:10 +0900 (Wed 10:18 MDT) ##Kay Michael <Michael.Kay@icl.com> wrote: ##>> 5. Saxon ##>> - Fullwidth 1 (#xff11) are supported. ##>> - Hiragana/Katakana/Kanji format generates incorrect result. ##>> (Unicode codepoint order, such as #x3042, #x3043, #x3044,...) ##>> useless and trouble with Non-European style processing. ##>> fix it please!! ##> ##>If you could tell me what the correct sequence is, I'll be happy to include ##>it. Help me please! ##XSLT 1.0 spec says: ## 7.7.1 Number to String Conversion Attributes ## ... ## - Any other format token indicates a numbering sequence that starts ## with that token. If an implementation does not support a numbering ## sequence that starts with that token, it must use a format token of 1. ##The last sentence is important. ...it must use a format token of 1. ##If Saxon will support... the following are Japanese Hiragana/Katakana sequences ##-- modern(A...) and traditional(I...) -- and Kanji(CJK ideographs) numbers. ##format="あ" (Hiragana A) ##あいうえおかきくけこ ##さしすせそたちつてと ##なにぬねのはひふへほ ##まみむめもやゆよらり ##るれろわをん ##format="ア" (Katakana A) ##アイウエオカキクケコ ##サシスセソタチツテト ##ナニヌネノハヒフヘホ ##マミムメモヤユヨラリ ##ルレロワヲン ##format="い" (Hiragana I) ##いろはにほへとちりぬ ##るをわかよたれそつね ##ならむうゐのおくやま ##けふこえてあさきゆめ ##みしゑひもせす ##format="イ" (Katakana I) ##イロハニホヘトチリヌ ##ルヲワカヨタレソツネ ##ナラムウヰノオクヤマ ##ケフコエテアサキユメ ##ミシヱヒモセス ##format="一" (Kanji 1) (decimal notation) ##一(=1) 二(=2) 三(=3) 四(=4) 五(=5) ##六(=6) 七(=7) 八(=8) 九(=9) 〇(=0) ##e.g. 一〇(=10) 二五六(=256) ##There are more ideographic(kanji)-number formats, but the above will be sufficient. ##Thanks, ##MURAKAMI Shinyu ##murakami@nadita.com