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-rw-r--r--ale_linters/go/gometalinter.vim2
-rw-r--r--autoload/ale/util.vim6
-rw-r--r--test/command_callback/test_gometalinter_command_callback.vader6
-rw-r--r--test/test_regex_escaping.vader4
4 files changed, 14 insertions, 4 deletions
diff --git a/ale_linters/go/gometalinter.vim b/ale_linters/go/gometalinter.vim
index 95251303..26bef321 100644
--- a/ale_linters/go/gometalinter.vim
+++ b/ale_linters/go/gometalinter.vim
@@ -14,7 +14,7 @@ function! ale_linters#go#gometalinter#GetCommand(buffer) abort
let l:options = ale#Var(a:buffer, 'go_gometalinter_options')
return ale#Escape(l:executable)
- \ . ' --include=' . ale#Escape(l:filename)
+ \ . ' --include=' . ale#Escape(ale#util#EscapePCRE(l:filename))
\ . (!empty(l:options) ? ' ' . l:options : '')
\ . ' ' . ale#Escape(fnamemodify(l:filename, ':h'))
endfunction
diff --git a/autoload/ale/util.vim b/autoload/ale/util.vim
index 0fc23d07..c86ac692 100644
--- a/autoload/ale/util.vim
+++ b/autoload/ale/util.vim
@@ -161,3 +161,9 @@ function! ale#util#FunctionArgCount(function) abort
return l:count
endfunction
+
+" Escape a string so the characters in it will be safe for use inside of PCRE
+" or RE2 regular expressions without characters having special meanings.
+function! ale#util#EscapePCRE(unsafe_string) abort
+ return substitute(a:unsafe_string, '\([\-\[\]{}()*+?.^$|]\)', '\\\1', 'g')
+endfunction
diff --git a/test/command_callback/test_gometalinter_command_callback.vader b/test/command_callback/test_gometalinter_command_callback.vader
index f1b4e9f0..a0f4da4f 100644
--- a/test/command_callback/test_gometalinter_command_callback.vader
+++ b/test/command_callback/test_gometalinter_command_callback.vader
@@ -22,7 +22,7 @@ Execute(The gometalinter callback should return the right defaults):
\ ale_linters#go#gometalinter#GetExecutable(bufnr(''))
AssertEqual
\ ale#Escape('gometalinter')
- \ . ' --include=' . ale#Escape(expand('%'))
+ \ . ' --include=' . ale#Escape(ale#util#EscapePCRE(expand('%')))
\ . ' ' . ale#Escape(getcwd()),
\ ale_linters#go#gometalinter#GetCommand(bufnr(''))
@@ -34,7 +34,7 @@ Execute(The gometalinter callback should use a configured executable):
\ ale_linters#go#gometalinter#GetExecutable(bufnr(''))
AssertEqual
\ ale#Escape('something else')
- \ . ' --include=' . ale#Escape(expand('%'))
+ \ . ' --include=' . ale#Escape(ale#util#EscapePCRE(expand('%')))
\ . ' ' . ale#Escape(getcwd()),
\ ale_linters#go#gometalinter#GetCommand(bufnr(''))
@@ -43,7 +43,7 @@ Execute(The gometalinter callback should use configured options):
AssertEqual
\ ale#Escape('gometalinter')
- \ . ' --include=' . ale#Escape(expand('%'))
+ \ . ' --include=' . ale#Escape(ale#util#EscapePCRE(expand('%')))
\ . ' --foobar'
\ . ' ' . ale#Escape(getcwd()),
\ ale_linters#go#gometalinter#GetCommand(bufnr(''))
diff --git a/test/test_regex_escaping.vader b/test/test_regex_escaping.vader
new file mode 100644
index 00000000..b79b8c56
--- /dev/null
+++ b/test/test_regex_escaping.vader
@@ -0,0 +1,4 @@
+Execute(ale#util#EscapePCRE should escape strings for PCRE or RE2 appropriately):
+ AssertEqual '\\\^\$\*\+\?\.\(\)\|\{\}\[\]', ale#util#EscapePCRE('\^$*+?.()|{}[]')
+ AssertEqual 'abcABC09', ale#util#EscapePCRE('abcABC09')
+ AssertEqual '/', ale#util#EscapePCRE('/')