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Improved accuracy of first function argument detection in indentation
Indentation improvements: - Fixed escape character detection `s:IsEscaped`. - Improved accuracy of first function argument detection.
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7 files changed

+286
-12
lines changed

7 files changed

+286
-12
lines changed

‎clj/resources/indent-test-cases/s-expr_standard/in.clj‎

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(import '(java.io File
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IOException)
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'(clojure.lang PersistentQueue))
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((if true + -) 1
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3)
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((if true
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+
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-)
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1
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3)
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(#'if (even? 1)
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2
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3)
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(#(foo) bar
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biz)
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("foo bar" biz
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baz)
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(~@foo
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~bar)
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(~@foo ~bar
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biz)
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(o bar
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biz)
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({foo \} bar biz} foo
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biz)
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('foo bar
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'biz)
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('#{foo bar} 1
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2)
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(foo ; bar
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biz)
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'(\" \b
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\c)

‎clj/resources/indent-test-cases/s-expr_standard/out.clj‎

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(import '(java.io File
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IOException)
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'(clojure.lang PersistentQueue))
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((if true + -) 1
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3)
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((if true
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+
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-)
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1
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3)
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(#'if (even? 1)
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2
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3)
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(#(foo) bar
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biz)
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("foo bar" biz
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baz)
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(~@foo
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~bar)
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(~@foo ~bar
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biz)
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(o bar
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biz)
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({foo \} bar biz} foo
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biz)
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('foo bar
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'biz)
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('#{foo bar} 1
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2)
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(foo ; bar
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biz)
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'(\" \b
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\c)

‎clj/resources/indent-test-cases/s-expr_traditional/in.clj‎

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(import '(java.io File
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IOException)
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'(clojure.lang PersistentQueue))
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((if true + -) 1
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3)
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((if true
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+
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-)
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1
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3)
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(#'if (even? 1)
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2
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3)
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(#(foo) bar
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biz)
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("foo bar" biz
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baz)
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(~@foo
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~bar)
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(~@foo ~bar
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biz)
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(o bar
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biz)
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({foo \} bar biz} foo
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biz)
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('foo bar
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'biz)
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('#{foo bar} 1
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2)
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(foo ; bar
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biz)
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'(\" \b
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\c)

‎clj/resources/indent-test-cases/s-expr_traditional/out.clj‎

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(import '(java.io File
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IOException)
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'(clojure.lang PersistentQueue))
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((if true + -) 1
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3)
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((if true
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+
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-)
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1
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3)
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(#'if (even? 1)
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2
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3)
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(#(foo) bar
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biz)
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("foo bar" biz
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baz)
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(~@foo
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~bar)
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(~@foo ~bar
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biz)
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(o bar
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biz)
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({foo \} bar biz} foo
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biz)
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('foo bar
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'biz)
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('#{foo bar} 1
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2)
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(foo ; bar
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biz)
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'(\" \b
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\c)

‎clj/resources/indent-test-cases/s-expr_uniform/in.clj‎

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(import '(java.io File
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IOException)
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'(clojure.lang PersistentQueue))
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((if true + -) 1
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3)
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((if true
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+
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-)
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1
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3)
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(#'if (even? 1)
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2
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3)
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(#(foo) bar
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biz)
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("foo bar" biz
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baz)
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(~@foo
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~bar)
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(~@foo ~bar
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biz)
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(o bar
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biz)
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({foo \} bar biz} foo
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biz)
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('foo bar
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'biz)
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('#{foo bar} 1
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2)
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(foo ; bar
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biz)
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'(\" \b
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\c)

‎clj/resources/indent-test-cases/s-expr_uniform/out.clj‎

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(import '(java.io File
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IOException)
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'(clojure.lang PersistentQueue))
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((if true + -) 1
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3)
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((if true
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+
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-)
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1
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3)
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(#'if (even? 1)
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2
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3)
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(#(foo) bar
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biz)
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("foo bar" biz
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baz)
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(~@foo
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~bar)
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(~@foo ~bar
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biz)
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(o bar
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biz)
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({foo \} bar biz} foo
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biz)
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('foo bar
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'biz)
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('#{foo bar} 1
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2)
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(foo ; bar
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biz)
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'(\" \b
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\c)

‎indent/clojure.vim‎

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Original file line numberDiff line numberDiff line change
@@ -73,24 +73,40 @@ call s:SConf('clojure_indent_rules', {
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" Returns "1" if position "i_char" in "line_str" is preceded by an odd number
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" of backslash characters (i.e. escaped).
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function! s:IsEscaped(line_str, i_char)
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return ! strlen(trim(a:line_str[: a:i_char - 1], '\', 2)) % 2
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let ln = a:line_str[: a:i_char - 1]
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return (strlen(ln) - strlen(trim(ln, '\', 2))) % 2
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endfunction
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" Variation of "s:IsEscaped" which can be used within "search(pair)pos".
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function! s:SkipIfEscaped()
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let pos = getcursorcharpos()
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return s:IsEscaped(getline(pos[1]), pos[2] - 1)
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endfunction
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" Used during list function indentation. Returns the position of the first
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" operand in the list on the first line of the form at "pos".
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function! s:FirstFnArgPos(pos)
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" TODO: ignore comments and handle escaped characters!
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let lnr = a:pos[0]
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let s:in_form_current_form = a:pos
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call cursor(lnr, a:pos[1] + 1)
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return searchpos('\m[ ,]\+\zs', 'z', lnr, 0, function('<SID>IsSubForm'))
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endfunction
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let [lnr, base_idx] = a:pos
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let ln = getline(lnr)
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call cursor([lnr, base_idx + 1])
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if ln[base_idx] =~# '["\\,[:space:]]' | return [0, 0] | endif
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" Find first collection delimiter or char preceeding whitespace.
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let pos = searchpos('\([{\[(]\|.[[:space:],]\)', 'cWz', lnr)
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if pos == [0, 0] | return pos | endif
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" If at collection delimiter, jump to end delimiter.
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let ch = ln[pos[1] - 1]
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if has_key(s:pairs, ch)
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let pos = searchpairpos('\V' . ch, '', '\V' . get(s:pairs, ch), 'Wz', function('s:SkipIfEscaped'), lnr)
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" If end not on same line: no arg.
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if pos == [0, 0] | return pos | endif
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endif
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" Used by "s:FirstFnArgPos" function to skip over subforms as the first value
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" in a list form.
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function! s:IsSubForm()
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let pos = searchpairpos('\m[([{"]', '', '\m[)\]}"]', 'b')
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return pos != [0, 0] && pos != s:in_form_current_form
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" Search forwards for first non-whitespace/comment char on line.
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let pos = searchpos('[^[:space:],]', 'Wz', lnr)
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return ln[pos[1] - 1] ==# ';' ? [0, 0] : pos
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endfunction
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" Converts a cursor position into a characterwise cursor column position (to

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