Snobol4 语言 实战 Excel 公式结果转 XML 实战

Snobol4amuwap 发布于 4 天前 2 次阅读

Snobol4【1】 语言实战：Excel【2】 公式结果转 XML【3】 实战

Snobol4 是一种古老的编程语言，最初由Ralph E. Griswold在1962年设计。它以其简洁的语法和强大的字符串处理能力而闻名。尽管Snobol4在现代编程语言中并不常见，但它在处理文本和字符串方面仍然有其独特的优势。本文将探讨如何使用Snobol4语言实现一个实用的功能：将Excel公式结果转换为XML格式。

Snobol4 简介

Snobol4是一种高级编程语言【4】，特别适合于文本处理。它具有以下特点：

- 强大的字符串处理能力
- 简洁的语法
- 高效的运行速度
- 支持模式匹配【5】和字符串替换【6】

实战目标

我们的目标是使用Snobol4编写一个程序，该程序能够：

1. 读取Excel文件中的公式
2. 计算公式【7】的结果
3. 将结果转换为XML格式

实现步骤

步骤 1：读取Excel文件

我们需要读取Excel文件中的公式。由于Snobol4本身不支持直接读取Excel文件，我们需要借助外部工具【8】或库来实现这一功能。这里，我们可以使用Python的`openpyxl【9】`库来读取Excel文件。

python
from openpyxl import load_workbook

def read_excel_formula(file_path, sheet_name, cell_address):
workbook = load_workbook(file_path)
sheet = workbook[sheet_name]
cell_value = sheet[cell_address].value
return cell_value

步骤 2：计算公式结果

接下来，我们需要计算Excel公式的结果。由于Snobol4不支持直接计算Excel公式，我们可以使用Python的`openpyxl`库来计算公式结果。

python
def calculate_formula_result(file_path, sheet_name, cell_address):
workbook = load_workbook(file_path)
workbook.recalculate()
sheet = workbook[sheet_name]
cell_value = sheet[cell_address].value
return cell_value

步骤 3：将结果转换为XML格式

我们需要将计算结果转换为XML格式。Snobol4提供了丰富的字符串处理功能，我们可以利用这些功能来实现这一目标。

```snobol4
:read_file 'result.txt'
:output_file 'output.xml'

:read_line
:if not = 'END'
:replace ' ' '='
:replace '=' '> '
:replace '<' '' '< '
:replace '' ''
:write_line
:write '>'
:write_line
:write '>'
:write_line
:write ''
:write_line
:write '>'
:write_line
:write ''
:write_line
:write '>'
:write_line
:write ''
:write_line
:write '>'
:write_line
:write ''
:write_line
:write '>'
:write_line
:write ''
:write_line
:write '>'
:write_line
:write ''
:write_line
:write '>'
:write_line
:write ''
:write_line
:write '>'
:write_line
:write ''
:write_line
:write '>'
:write_line
:write ''
:write_line
:write '>'
:write_line
:write ''
:write_line
:write '>'
:write_line
:write ''
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:write_line
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