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local search = {}
local default_opt = {}
local function pattern_lower(str)
if str:sub(1, 1) == "%" then
return str
end
return str:lower()
end
local function init_args(doc, line, col, text, opt)
opt = opt or default_opt
line, col = doc:sanitize_position(line, col)
if opt.no_case and not opt.regex then
text = text:lower()
end
return doc, line, col, text, opt
end
function search.find(doc, line, col, text, opt)
doc, line, col, text, opt = init_args(doc, line, col, text, opt)
local re
if opt.regex then
re = regex.compile(text, opt.no_case and "i" or "")
end
for line = line, #doc.lines do
local line_text = doc.lines[line]
if opt.regex then
local s, e = re:cmatch(line_text, col)
if s then
return line, s, line, e
end
col = 1
else
if opt.no_case then
line_text = line_text:lower()
end
local s, e = line_text:find(text, col, true)
if s then
return line, s, line, e + 1
end
col = 1
end
end
if opt.wrap then
opt = { no_case = opt.no_case, regex = opt.regex }
return search.find(doc, 1, 1, text, opt)
end
end
return search
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