| Current Path : /proc/thread-self/root/usr/local/lib/python3.8/dist-packages/xlwt/ |
Linux ift1.ift-informatik.de 5.4.0-216-generic #236-Ubuntu SMP Fri Apr 11 19:53:21 UTC 2025 x86_64 |
| Current File : //proc/thread-self/root/usr/local/lib/python3.8/dist-packages/xlwt/ExcelFormula.py |
# -*- coding: windows-1252 -*-
from . import ExcelFormulaParser, ExcelFormulaLexer
import struct
from .antlr import ANTLRException
class Formula(object):
__slots__ = ["__s", "__parser", "__sheet_refs", "__xcall_refs"]
def __init__(self, s):
try:
self.__s = s
lexer = ExcelFormulaLexer.Lexer(s)
self.__parser = ExcelFormulaParser.Parser(lexer)
self.__parser.formula()
self.__sheet_refs = self.__parser.sheet_references
self.__xcall_refs = self.__parser.xcall_references
except ANTLRException as e:
# print e
raise ExcelFormulaParser.FormulaParseException("can't parse formula " + s)
def get_references(self):
return self.__sheet_refs, self.__xcall_refs
def patch_references(self, patches):
for offset, idx in patches:
self.__parser.rpn = self.__parser.rpn[:offset] + struct.pack('<H', idx) + self.__parser.rpn[offset+2:]
def text(self):
return self.__s
def rpn(self):
'''
Offset Size Contents
0 2 Size of the following formula data (sz)
2 sz Formula data (RPN token array)
[2+sz] var. (optional) Additional data for specific tokens
'''
return struct.pack("<H", len(self.__parser.rpn)) + self.__parser.rpn