pic*_*olu 3 emacs org-mode org-babel
我正在尝试根据使用“;”的 CSV 文件的内容创建组织表 作为分隔符。
我认为有一个源代码块来“cat”文件的内容,然后将结果传递给创建表的函数会很容易,但我卡住了:我找不到使用“的方法”结果”的第一个源代码块。我知道的函数 (org-table-convert-region) 需要一个区域来处理,但我不知道如何将“cat”-ed 文本作为一个区域传递。
#+NAME: csvraw
#+BEGIN_SRC sh :results raw
cat afile.csv
#+END_SRC
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感谢您帮助生成一个代码块,该代码块从我的 csv 文件中生成一个组织表,其中包含如下几行:
ID;Region;SubRegion;Area;No
1234;Asia;India;45;2
24251;Europe;Romania;456;67
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有org-table-convert-region(绑定到C-c |)可以相当简单地进行转换。唯一的技巧是指定;为分隔符。您可以通过使用适当的前缀参数调用它来做到这一点 - 文档字符串说:
(org-table-convert-region BEG0 END0 &optional SEPARATOR)
Convert region to a table.
The region goes from BEG0 to END0, but these borders will be moved
slightly, to make sure a beginning of line in the first line is included.
SEPARATOR specifies the field separator in the lines. It can have the
following values:
(4) Use the comma as a field separator
(16) Use a TAB as field separator
(64) Prompt for a regular expression as field separator
integer When a number, use that many spaces, or a TAB, as field separator
regexp When a regular expression, use it to match the separator
nil When nil, the command tries to be smart and figure out the
separator in the following way:
- when each line contains a TAB, assume TAB-separated material
- when each line contains a comma, assume CSV material
- else, assume one or more SPACE characters as separator.
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该(64)值只是C-u连续三个,所以过程如下:
C-x i。C-x C-x 将插入的内容标记为活动区域。C-u C-u C-u C-c | ; RET更酷的是,在 CSV 文件中的第一行和其余行之间留一个空行,将使第一行自动成为表格中的标题。
您也可以将其包装在代码块中:
#+begin_src elisp :var file="/tmp/foo.csv" :results raw
(defun csv-to-table (file)
(with-temp-buffer
(erase-buffer)
(insert-file file)
(org-table-convert-region (point-min) (point-max) ";")
(buffer-string)))
(csv-to-table file)
#+end_src
#+RESULTS:
| a | b | c |
|---+---+---|
| d | e | f |
| g | h | i |
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