Mercurial > vim
view runtime/indent/gdscript.vim @ 33776:9503dc55b5ed v9.0.2108
patch 9.0.2108: [security]: overflow with count for :s command
Commit: https://github.com/vim/vim/commit/ac63787734fda2e294e477af52b3bd601517fa78
Author: Christian Brabandt <cb@256bit.org>
Date: Tue Nov 14 20:45:48 2023 +0100
patch 9.0.2108: [security]: overflow with count for :s command
Problem: [security]: overflow with count for :s command
Solution: Abort the :s command if the count is too large
If the count after the :s command is larger than what fits into a
(signed) long variable, abort with e_value_too_large.
Adds a test with INT_MAX as count and verify it correctly fails.
It seems the return value on Windows using mingw compiler wraps around,
so the initial test using :s/./b/9999999999999999999999999990 doesn't
fail there, since the count is wrapping around several times and finally
is no longer larger than 2147483647. So let's just use 2147483647 in the
test, which hopefully will always cause a failure
Signed-off-by: Christian Brabandt <cb@256bit.org>
author | Christian Brabandt <cb@256bit.org> |
---|---|
date | Thu, 16 Nov 2023 22:15:10 +0100 |
parents | e37754a13778 |
children |
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vim9script # Vim indent file # Language: gdscript (Godot game engine) # Maintainer: Maxim Kim <habamax@gmail.com> # Based on python indent file. if exists("b:did_indent") finish endif b:did_indent = 1 var undo_opts = "setl indentexpr< indentkeys< lisp< autoindent<" if exists('b:undo_indent') b:undo_indent ..= "|" .. undo_opts else b:undo_indent = undo_opts endif setlocal nolisp setlocal autoindent setlocal indentexpr=GDScriptIndent() setlocal indentkeys+=<:>,=elif,=except def GDScriptIndent(): number # If this line is explicitly joined: If the previous line was also joined, # line it up with that one, otherwise add two 'shiftwidth' if getline(v:lnum - 1) =~ '\\$' if v:lnum > 1 && getline(v:lnum - 2) =~ '\\$' return indent(v:lnum - 1) endif return indent(v:lnum - 1) + (shiftwidth() * 2) endif # If the start of the line is in a string don't change the indent. if has('syntax_items') && synIDattr(synID(v:lnum, 1, 1), "name") =~ "String$" return -1 endif # Search backwards for the previous non-empty line. var plnum = prevnonblank(v:lnum - 1) if plnum == 0 # This is the first non-empty line, use zero indent. return 0 endif var plindent = indent(plnum) var plnumstart = plnum # Get the line and remove a trailing comment. # Use syntax highlighting attributes when possible. var pline = getline(plnum) var pline_len = strlen(pline) if has('syntax_items') # If the last character in the line is a comment, do a binary search for # the start of the comment. synID() is slow, a linear search would take # too long on a long line. if synIDattr(synID(plnum, pline_len, 1), "name") =~ "\\(Comment\\|Todo\\)$" var min = 1 var max = pline_len while min < max var col = (min + max) / 2 if synIDattr(synID(plnum, col, 1), "name") =~ "\\(Comment\\|Todo\\)$" max = col else min = col + 1 endif endwhile pline = strpart(pline, 0, min - 1) endif else var col = 0 while col < pline_len if pline[col] == '#' pline = strpart(pline, 0, col) break endif col = col + 1 endwhile endif # When "inside" parenthesis: If at the first line below the parenthesis add # one 'shiftwidth' ("inside" is simplified and not really checked) # my_var = ( # a # + b # + c # ) if pline =~ '[({\[]\s*$' return indent(plnum) + shiftwidth() endif # If the previous line ended with a colon, indent this line if pline =~ ':\s*$' return plindent + shiftwidth() endif # If the previous line was a stop-execution statement... if getline(plnum) =~ '^\s*\(break\|continue\|raise\|return\|pass\)\>' # See if the user has already dedented if indent(v:lnum) > indent(plnum) - shiftwidth() # If not, recommend one dedent return indent(plnum) - shiftwidth() endif # Otherwise, trust the user return -1 endif # If the current line begins with a keyword that lines up with "try" if getline(v:lnum) =~ '^\s*\(except\|finally\)\>' var lnum = v:lnum - 1 while lnum >= 1 if getline(lnum) =~ '^\s*\(try\|except\)\>' var ind = indent(lnum) if ind >= indent(v:lnum) return -1 # indent is already less than this endif return ind # line up with previous try or except endif lnum = lnum - 1 endwhile return -1 # no matching "try"! endif # If the current line begins with a header keyword, dedent if getline(v:lnum) =~ '^\s*\(elif\|else\)\>' # Unless the previous line was a one-liner if getline(plnumstart) =~ '^\s*\(for\|if\|try\)\>' return plindent endif # Or the user has already dedented if indent(v:lnum) <= plindent - shiftwidth() return -1 endif return plindent - shiftwidth() endif return -1 enddef