From 89486c17e6436fe2cbe10cf4e9f7d385aa35c3fe Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Marc=20Andr=C3=A9=20Tanner?= Date: Wed, 17 Feb 2016 22:17:26 +0100 Subject: vis-lua: add file:content(pos, len) function --- vis-lua.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/vis-lua.c b/vis-lua.c index 0ea7d48..527202d 100644 --- a/vis-lua.c +++ b/vis-lua.c @@ -706,12 +706,31 @@ static int file_lines_iterator_it(lua_State *L) { return 1; } +static int file_content(lua_State *L) { + File *file = obj_ref_check(L, 1, "vis.file"); + if (!file) + goto err; + size_t pos = luaL_checkunsigned(L, 2); + size_t len = luaL_checkunsigned(L, 3); + char *data = malloc(len); + if (!data) + goto err; + len = text_bytes_get(file->text, pos, len, data); + lua_pushlstring(L, data, len); + free(data); + return 1; +err: + lua_pushnil(L); + return 1; +} + static const struct luaL_Reg file_funcs[] = { { "__index", file_index }, { "__newindex", file_newindex }, { "insert", file_insert }, { "delete", file_delete }, { "lines_iterator", file_lines_iterator }, + { "content", file_content }, { NULL, NULL }, }; -- cgit v1.2.3