2 files changed, 77 insertions, 0 deletions
diff --git a/mac/.config/mpv/script-modules/utf8/begins/compiletime/parser.lua b/mac/.config/mpv/script-modules/utf8/begins/compiletime/parser.lua
new file mode 100644
index 0000000..c54c0df
--- /dev/null
+++ b/mac/.config/mpv/script-modules/utf8/begins/compiletime/parser.lua
@@ -0,0 +1,17 @@
+return function(utf8)
+
+utf8.config.begins = utf8.config.begins or {
+  utf8:require "begins.compiletime.vanilla"
+}
+
+function utf8.regex.compiletime.begins.parse(regex, c, bs, ctx)
+  for _, m in ipairs(utf8.config.begins) do
+    local functions, move = m.parse(regex, c, bs, ctx)
+    utf8.debug("begins", _, c, bs, move, functions)
+    if functions then
+      return functions, move
+    end
+  end
+end
+
+end
diff --git a/mac/.config/mpv/script-modules/utf8/begins/compiletime/vanilla.lua b/mac/.config/mpv/script-modules/utf8/begins/compiletime/vanilla.lua
new file mode 100644
index 0000000..bcafa17
--- /dev/null
+++ b/mac/.config/mpv/script-modules/utf8/begins/compiletime/vanilla.lua
@@ -0,0 +1,60 @@
+return function(utf8)
+
+local matchers = {
+  sliding = function()
+    return [[
+    add(function(ctx) -- sliding
+      while ctx.pos <= ctx.len do
+        local clone = ctx:clone()
+        -- debug('starting from', clone, "start_pos", clone.pos)
+        clone.result.start = clone.pos
+        clone:next_function()
+        clone:get_function()(clone)
+
+        ctx:next_char()
+      end
+      ctx:terminate()
+    end)
+]]
+  end,
+  fromstart = function(ctx)
+    return [[
+    add(function(ctx) -- fromstart
+        if ctx.byte_pos > ctx.len then
+          return
+        end
+        ctx.result.start = ctx.pos
+        ctx:next_function()
+        ctx:get_function()(ctx)
+        ctx:terminate()
+    end)
+]]
+  end,
+}
+
+local function default()
+  return matchers.sliding()
+end
+
+local function parse(regex, c, bs, ctx)
+  if bs ~= 1 then return end
+
+  local functions
+  local skip = 0
+
+  if c == '^' then
+    functions = matchers.fromstart()
+    skip = 1
+  else
+    functions = matchers.sliding()
+  end
+
+  return functions, skip
+end
+
+return {
+  parse = parse,
+  default = default,
+}
+
+end