diff options
Diffstat (limited to 'xmake/core/base/string.lua')
| -rw-r--r-- | xmake/core/base/string.lua | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/xmake/core/base/string.lua b/xmake/core/base/string.lua index 51dfb86ef..abf92e945 100644 --- a/xmake/core/base/string.lua +++ b/xmake/core/base/string.lua @@ -151,5 +151,65 @@ function string.tryformat(format, ...) end end +-- case-insensitive pattern-matching +-- +-- print(("src/dadasd.C"):match(string.ipattern("sR[cd]/.*%.c", true))) +-- print(("src/dadasd.C"):match(string.ipattern("src/.*%.c", true))) +-- +-- print(string.ipattern("sR[cd]/.*%.c")) +-- [sS][rR][cd]/.*%.[cC] +-- +-- print(string.ipattern("sR[cd]/.*%.c", true)) +-- [sS][rR][cCdD]/.*%.[cC] +-- +function string.ipattern(pattern, brackets) + local tmp = {} + local i = 1 + while i <= #pattern do + + -- get current charactor + local char = pattern:sub(i, i) + + -- escape? + if char == '%' then + tmp[#tmp + 1] = char + i = i + 1 + char = pattern:sub(i,i) + tmp[#tmp + 1] = char + + -- '%bxy'? add next 2 chars + if char == 'b' then + tmp[#tmp + 1] = pattern:sub(i + 1, i + 2) + i = i + 2 + end + -- brackets? + elseif char == '[' then + tmp[#tmp + 1] = char + i = i + 1 + while i <= #pattern do + char = pattern:sub(i, i) + if char == '%' then + tmp[#tmp + 1] = char + tmp[#tmp + 1] = pattern:sub(i + 1, i + 1) + i = i + 1 + elseif char:match("%a") then + tmp[#tmp + 1] = not brackets and char or char:lower() .. char:upper() + else + tmp[#tmp + 1] = char + end + if char == ']' then break end + i = i + 1 + end + -- letter, [aA] + elseif char:match("%a") then + tmp[#tmp + 1] = '[' .. char:lower() .. char:upper() .. ']' + else + tmp[#tmp + 1] = char + end + i = i + 1 + end + return table.concat(tmp) +end + -- return module: string return string |