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For example when I write a macro command to editor from register r with
"rp
What does that quotation mean?
I can't seem to find the answer anywhere.
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The same rule applies to titles and words used in a special sense or for emphasis. Use double quotation marks (“”) around a direct quote. A direct quote is a word- for-word report of what someone else said or wrote. You use the exact words and punctuation of the original.
3.1.2.3 Double Quotes Enclosing characters in double quotes (' " ') preserves the literal value of all characters within the quotes, with the exception of ' $ ', ' ` ', ' \ ', and, when history expansion is enabled, ' !
Double quotes are similar to single quotes except that it allows the shell to interpret dollar sign ($), backtick(`), backslash(\) and exclamation mark(!). The characters have special meaning when used with double quotes, and before display, they are evaluated.
Quotation marks are used to specify a literal string. You can enclose a string in single quotation marks ( ' ) or double quotation marks ( " ). Quotation marks are also used to create a here-string. A here-string is a single-quoted or double-quoted string in which quotation marks are interpreted literally.
The double quote indicates that the next character is the name of a register. So the command "rp means: "from the named register r, paste text."
Sort of related, a single quote indicates that the next character is an address. So, for example if you navigate to some line in the file and press ma, you've "marked" the address as a. You can then refer to that line with 'a. The command 'a will jump to the line marked as a.
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@AdamLiss already explained the meaning of "rp, but I think you can learn more from Vim online manual.
For the explanation of p, you can run :h p in Vim; for the introduction of ["x], you can run Vim command :h [quotex]. And for general help of Vim, just run :h.
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