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vim-patch:9.0.0837: append() reports failure when not appending anything

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Problem:    append() reports failure when not appending anything.
Solution:   Only report failure when appending something. (closes vim/vim#11498)

cd9c8d400c

Co-authored-by: Bram Moolenaar <Bram@vim.org>
This commit is contained in:
zeertzjq
2023-08-22 18:21:15 +08:00
parent 48722ec400
commit 09910d5b35
6 changed files with 49 additions and 31 deletions
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16
runtime/lua/vim/_meta/vimfn.lua generated
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@@ -79,7 +79,8 @@ function vim.fn.api_info() end
--- {lnum} can be zero to insert a line before the first one.
--- {lnum} is used like with |getline()|.
--- Returns 1 for failure ({lnum} out of range or out of memory),
--- 0 for success. Example: >vim
--- 0 for success. When {text} is an empty list zero is returned,
--- no matter the value of {lnum}. Example: >vim
--- let failed = append(line('$'), "# THE END")
--- let failed = append(0, ["Chapter 1", "the beginning"])
--- <
@@ -106,7 +107,8 @@ function vim.fn.append(lnum, text) end
--- If {buf} is not a valid buffer or {lnum} is not valid, an
--- error message is given. Example: >vim
--- let failed = appendbufline(13, 0, "# THE START")
--- <
--- <However, when {text} is an empty list then no error is given
--- for an invalid {lnum}, since {lnum} isn't actually used.
---
--- @param buf any
--- @param lnum integer
@@ -7398,9 +7400,10 @@ function vim.fn.serverstop(address) end
---
--- To insert lines use |appendbufline()|.
---
--- {text} can be a string to set one line, or a list of strings
--- to set multiple lines. If the list extends below the last
--- line then those lines are added.
--- {text} can be a string to set one line, or a List of strings
--- to set multiple lines. If the List extends below the last
--- line then those lines are added. If the List is empty then
--- nothing is changed and zero is returned.
---
--- For the use of {buf}, see |bufname()| above.
---
@@ -7602,7 +7605,8 @@ function vim.fn.setfperm(fname, mode) end
--- When {lnum} is just below the last line the {text} will be
--- added below the last line.
--- {text} can be any type or a List of any type, each item is
--- converted to a String.
--- converted to a String. When {text} is an empty List then
--- nothing is changed and FALSE is returned.
---
--- If this succeeds, FALSE is returned. If this fails (most likely
--- because {lnum} is invalid) TRUE is returned.