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3faedb0509
The `get_indent_str_vtab()` function currently calls `tabstop_padding()` every time a tab is encountered (unless tabstops aren't used). `tabstop_padding()` either does a division by 'tabstop' If 'vartabstop' is not set, or iterates through the 'vartabstop' list to find current tab width. Since the virtual column only increases, we can keep track of where the next tabstop would be, and update this information once it was reached. `get_indent_str_vtab()` also depends on 'listchars' "tab" value from the current window, even though it may be called for a line from the same buffer in a different window. In most cases, it is called with tabstops enabled (last argument was `false`), so I split the function into one that uses tabstops and the other that doesn't. I removed `get_indent_str()` since I couldn't find any calls to it.
61 lines
1.7 KiB
Lua
61 lines
1.7 KiB
Lua
local helpers = require('test.unit.helpers')(after_each)
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local itp = helpers.gen_itp(it)
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local to_cstr = helpers.to_cstr
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local ffi = helpers.ffi
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local eq = helpers.eq
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local indent = helpers.cimport('./src/nvim/indent.h')
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local globals = helpers.cimport('./src/nvim/globals.h')
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describe('get_sts_value', function()
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itp([[returns 'softtabstop' when it is non-negative]], function()
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globals.curbuf.b_p_sts = 5
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eq(5, indent.get_sts_value())
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globals.curbuf.b_p_sts = 0
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eq(0, indent.get_sts_value())
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end)
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itp([[returns "effective shiftwidth" when 'softtabstop' is negative]], function()
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local shiftwidth = 2
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globals.curbuf.b_p_sw = shiftwidth
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local tabstop = 5
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globals.curbuf.b_p_ts = tabstop
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globals.curbuf.b_p_sts = -2
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eq(shiftwidth, indent.get_sts_value())
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shiftwidth = 0
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globals.curbuf.b_p_sw = shiftwidth
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eq(tabstop, indent.get_sts_value())
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end)
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end)
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describe('indent_size_ts()', function()
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itp('works for spaces', function()
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local line = to_cstr((' '):rep(7) .. 'a ')
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eq(7, indent.indent_size_ts(line, 100, nil))
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end)
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itp('works for tabs and spaces', function()
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local line = to_cstr(' \t \t \t\t a ')
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eq(19, indent.indent_size_ts(line, 4, nil))
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end)
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itp('works for tabs and spaces with empty vts', function()
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local vts = ffi.new('int[1]') -- zero initialized => first element (size) == 0
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local line = to_cstr(' \t \t \t\t a ')
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eq(23, indent.indent_size_ts(line, 4, vts))
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end)
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itp('works for tabs and spaces with vts', function()
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local vts = ffi.new('int[3]')
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vts[0] = 2 -- zero indexed
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vts[1] = 7
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vts[2] = 2
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local line = to_cstr(' \t \t \t\t a ')
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eq(18, indent.indent_size_ts(line, 4, vts))
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end)
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end)
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