formula parse error

A few days ago encountered a problem, you need to read a formula containing parameters from the XML file and call it. So the internet to find ways, but it is not found can be resolved with parameters of the formula method, and then absorb some of

background:Recent projects need to be finished by themselves Excel formulas are parsed and evaluated, and in Java you can use POI to parse an Excel formula and then evaluate it. However, the project needs to support the analysis of the formula JS

background:Recent projects need to do their own parsing and evaluation of Excel formulas, and in Java you can use POI to parse Excel formulas and then evaluate them. However, the project needs to support the parsing of the formula in both the JS and

Day4 job calculator, day4 Calculator Job: calculator Development (1) implements addition, subtraction, multiplication, division, and extension priority resolution; (2) user input 1-2*(60-30 + (-40/5) * (-9-2*5/-3 + 7/3*99/4*2998 + 10*568/14)-(-4*3)/(

Reprint Please specify source: http://blog.csdn.net/guolin_blog/article/details/47028975Before a few articles, I also struggled to write a ListView series trilogy, although the content can be said to be the absolute essence, but a lot of friends are

Last time, we talked about the contextual language used in syntax analysis, the generative formula used to describe contextual grammar, the generative derivation, And the syntax analysis tree. Today, we will discuss how to compile a syntax analyzer.

1. PrefaceThis is an experiment on compilation principles. It is the most difficult experiment that has been done since I went to college.Basic knowledge used in the experiment: C language, data structure, and assembly (simple understanding

In the process of extracting watermark, some problems are encountered.First of all, according to the ideas in the paper to comb the entire extraction process Read into two models, a primitive model Ori_mesh, a watermark model Wm_mesh.

1. PrefaceThis is an experiment on compilation principles. It is the most difficult experiment that has been done since I went to college. Basic knowledge used in the experiment: C language, data structure, and assembly (simple understanding

1, readexcel.system.php Copy Code code as follows: /* Vim:set expandtab tabstop=4 shiftwidth=4 softtabstop=4: * * /** * A class for reading Microsoft Excel spreadsheets. * * Originally developed by Vadim Tkachenko under the name