add split_perf test

2 files changed, 39 insertions, 0 deletions

diff --git a/tests/modules/string/split_perf.lua b/tests/modules/string/split_perf.lua
new file mode 100644
index 000000000..96d62dad9
--- /dev/null
+++ b/tests/modules/string/split_perf.lua
@@ -0,0 +1,37 @@
+
+function _split_perf(str, pattern, opt)
+    local dt = os.mclock()
+    for i = 0, 1000000 do
+        str:split(pattern, opt)
+    end
+    dt = os.mclock() - dt
+    print("split(%s .., %s, %s): %d ms", str:sub(1, 16), pattern, string.serialize(opt or {}, {strip = true, indent = false}), dt)
+end
+
+function main()
+
+    local str = "shortstr: 123abc123123xyz[123]+abc123"
+    _split_perf(str, "1")
+    _split_perf(str, "123")
+    _split_perf(str, "[123]+")
+    print("")
+
+    _split_perf(str, "1", {plain = true})
+    _split_perf(str, "123", {plain = true})
+    _split_perf(str, "[123]+", {plain = true})
+    print("")
+
+    str = "longstr: xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
+    for i = 0, 100 do
+        str = str .. "123yy[123]+"
+    end
+    _split_perf(str, "1")
+    _split_perf(str, "123")
+    _split_perf(str, "[123]+")
+    print("")
+
+    _split_perf(str, "1", {plain = true})
+    _split_perf(str, "123", {plain = true})
+    _split_perf(str, "[123]+", {plain = true})
+    print("")
+end
diff --git a/xmake/modules/private/tools/gcc/parse_deps.lua b/xmake/modules/private/tools/gcc/parse_deps.lua
index 19ae51cbf..4c672d599 100644
--- a/xmake/modules/private/tools/gcc/parse_deps.lua
+++ b/xmake/modules/private/tools/gcc/parse_deps.lua
@@ -46,6 +46,8 @@ end
 
 -- parse depsfiles from string
 --
+-- parse_deps(io.readfile(depfile, {continuation = "\\"}))
+--
 -- eg.
 -- strcpy.o: src/tbox/libc/string/strcpy.c src/tbox/libc/string/string.h \
 --  src/tbox/libc/string/prefix.h src/tbox/libc/string/../prefix.h \