Mercurial > vim
annotate src/if_lua.c @ 2331:3840b7508835 vim73
Make it easier to build with Lua. Remove compiler warnings.
author | Bram Moolenaar <bram@vim.org> |
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date | Sun, 18 Jul 2010 12:35:47 +0200 |
parents | ea4bf6df1a8a |
children | f149bb1cf5be |
rev | line source |
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2320
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1 /* vi:set ts=8 sts=4 sw=4: |
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2 * |
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3 * VIM - Vi IMproved by Bram Moolenaar |
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4 * |
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5 * Lua interface by Luis Carvalho |
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6 * |
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7 * Do ":help uganda" in Vim to read copying and usage conditions. |
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8 * Do ":help credits" in Vim to see a list of people who contributed. |
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9 * See README.txt for an overview of the Vim source code. |
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10 */ |
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11 |
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12 #include <stdio.h> |
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13 #include <string.h> |
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14 #include <lua.h> |
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15 #include <lualib.h> |
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16 #include <lauxlib.h> |
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17 #include "vim.h" |
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18 |
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19 /* Only do the following when the feature is enabled. Needed for "make |
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20 * depend". */ |
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21 #if defined(FEAT_LUA) || defined(PROTO) |
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22 |
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23 #define LUAVIM_CHUNKNAME "vim chunk" |
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24 #define LUAVIM_NAME "vim" |
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25 |
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26 typedef buf_T *luaV_Buffer; |
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27 typedef win_T *luaV_Window; |
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28 typedef void (*msgfunc_T)(char_u *); |
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29 |
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30 static const char LUAVIM_BUFFER[] = "buffer"; |
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31 static const char LUAVIM_WINDOW[] = "window"; |
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32 static const char LUAVIM_FREE[] = "luaV_free"; |
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33 |
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34 #define luaV_getfield(L, s) \ |
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35 lua_pushlightuserdata((L), (void *)(s)); \ |
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36 lua_rawget((L), LUA_REGISTRYINDEX) |
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37 #define luaV_checksandbox(L) \ |
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38 if (sandbox) luaL_error((L), "not allowed in sandbox") |
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39 #define luaV_msg(L) luaV_msgfunc((L), (msgfunc_T) msg) |
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40 #define luaV_emsg(L) luaV_msgfunc((L), (msgfunc_T) emsg) |
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41 |
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42 |
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43 #ifdef DYNAMIC_LUA |
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44 /* lauxlib */ |
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45 #define luaL_register dll_luaL_register |
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46 #define luaL_typerror dll_luaL_typerror |
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47 #define luaL_checklstring dll_luaL_checklstring |
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48 #define luaL_checkinteger dll_luaL_checkinteger |
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49 #define luaL_optinteger dll_luaL_optinteger |
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50 #define luaL_checktype dll_luaL_checktype |
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51 #define luaL_error dll_luaL_error |
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52 #define luaL_loadfile dll_luaL_loadfile |
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53 #define luaL_loadbuffer dll_luaL_loadbuffer |
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54 #define luaL_newstate dll_luaL_newstate |
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55 #define luaL_buffinit dll_luaL_buffinit |
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56 #define luaL_prepbuffer dll_luaL_prepbuffer |
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57 #define luaL_addlstring dll_luaL_addlstring |
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58 #define luaL_pushresult dll_luaL_pushresult |
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59 /* lua */ |
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60 #define lua_close dll_lua_close |
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61 #define lua_gettop dll_lua_gettop |
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62 #define lua_settop dll_lua_settop |
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63 #define lua_pushvalue dll_lua_pushvalue |
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64 #define lua_replace dll_lua_replace |
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65 #define lua_isnumber dll_lua_isnumber |
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66 #define lua_isstring dll_lua_isstring |
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67 #define lua_type dll_lua_type |
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68 #define lua_rawequal dll_lua_rawequal |
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69 #define lua_tonumber dll_lua_tonumber |
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70 #define lua_tointeger dll_lua_tointeger |
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71 #define lua_toboolean dll_lua_toboolean |
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72 #define lua_tolstring dll_lua_tolstring |
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73 #define lua_touserdata dll_lua_touserdata |
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74 #define lua_pushnil dll_lua_pushnil |
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75 #define lua_pushnumber dll_lua_pushnumber |
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76 #define lua_pushinteger dll_lua_pushinteger |
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77 #define lua_pushlstring dll_lua_pushlstring |
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78 #define lua_pushstring dll_lua_pushstring |
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79 #define lua_pushfstring dll_lua_pushfstring |
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80 #define lua_pushcclosure dll_lua_pushcclosure |
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81 #define lua_pushboolean dll_lua_pushboolean |
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82 #define lua_pushlightuserdata dll_lua_pushlightuserdata |
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83 #define lua_getfield dll_lua_getfield |
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84 #define lua_rawget dll_lua_rawget |
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85 #define lua_createtable dll_lua_createtable |
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86 #define lua_newuserdata dll_lua_newuserdata |
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87 #define lua_getmetatable dll_lua_getmetatable |
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88 #define lua_setfield dll_lua_setfield |
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89 #define lua_rawset dll_lua_rawset |
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90 #define lua_rawseti dll_lua_rawseti |
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91 #define lua_setmetatable dll_lua_setmetatable |
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92 #define lua_call dll_lua_call |
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93 #define lua_pcall dll_lua_pcall |
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94 /* libs */ |
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95 #define luaopen_base dll_luaopen_base |
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96 #define luaopen_table dll_luaopen_table |
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97 #define luaopen_string dll_luaopen_string |
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98 #define luaopen_math dll_luaopen_math |
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99 #define luaopen_os dll_luaopen_os |
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100 #define luaopen_package dll_luaopen_package |
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101 #define luaopen_debug dll_luaopen_debug |
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102 |
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103 /* lauxlib */ |
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104 void (*dll_luaL_register) (lua_State *L, const char *libname, const luaL_Reg *l); |
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105 int (*dll_luaL_typerror) (lua_State *L, int narg, const char *tname); |
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106 const char *(*dll_luaL_checklstring) (lua_State *L, int numArg, size_t *l); |
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107 lua_Integer (*dll_luaL_checkinteger) (lua_State *L, int numArg); |
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108 lua_Integer (*dll_luaL_optinteger) (lua_State *L, int nArg, lua_Integer def); |
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109 void (*dll_luaL_checktype) (lua_State *L, int narg, int t); |
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110 int (*dll_luaL_error) (lua_State *L, const char *fmt, ...); |
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111 int (*dll_luaL_loadfile) (lua_State *L, const char *filename); |
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112 int (*dll_luaL_loadbuffer) (lua_State *L, const char *buff, size_t sz, const char *name); |
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113 lua_State *(*dll_luaL_newstate) (void); |
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114 void (*dll_luaL_buffinit) (lua_State *L, luaL_Buffer *B); |
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115 char *(*dll_luaL_prepbuffer) (luaL_Buffer *B); |
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116 void (*dll_luaL_addlstring) (luaL_Buffer *B, const char *s, size_t l); |
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117 void (*dll_luaL_pushresult) (luaL_Buffer *B); |
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118 /* lua */ |
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119 void (*dll_lua_close) (lua_State *L); |
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120 int (*dll_lua_gettop) (lua_State *L); |
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121 void (*dll_lua_settop) (lua_State *L, int idx); |
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122 void (*dll_lua_pushvalue) (lua_State *L, int idx); |
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123 void (*dll_lua_replace) (lua_State *L, int idx); |
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124 int (*dll_lua_isnumber) (lua_State *L, int idx); |
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125 int (*dll_lua_isstring) (lua_State *L, int idx); |
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126 int (*dll_lua_type) (lua_State *L, int idx); |
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127 int (*dll_lua_rawequal) (lua_State *L, int idx1, int idx2); |
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128 lua_Number (*dll_lua_tonumber) (lua_State *L, int idx); |
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129 lua_Integer (*dll_lua_tointeger) (lua_State *L, int idx); |
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130 int (*dll_lua_toboolean) (lua_State *L, int idx); |
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131 const char *(*dll_lua_tolstring) (lua_State *L, int idx, size_t *len); |
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132 void *(*dll_lua_touserdata) (lua_State *L, int idx); |
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133 void (*dll_lua_pushnil) (lua_State *L); |
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134 void (*dll_lua_pushnumber) (lua_State *L, lua_Number n); |
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135 void (*dll_lua_pushinteger) (lua_State *L, lua_Integer n); |
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136 void (*dll_lua_pushlstring) (lua_State *L, const char *s, size_t l); |
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137 void (*dll_lua_pushstring) (lua_State *L, const char *s); |
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138 const char *(*dll_lua_pushfstring) (lua_State *L, const char *fmt, ...); |
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139 void (*dll_lua_pushcclosure) (lua_State *L, lua_CFunction fn, int n); |
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140 void (*dll_lua_pushboolean) (lua_State *L, int b); |
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141 void (*dll_lua_pushlightuserdata) (lua_State *L, void *p); |
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142 void (*dll_lua_getfield) (lua_State *L, int idx, const char *k); |
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143 void (*dll_lua_rawget) (lua_State *L, int idx); |
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144 void (*dll_lua_createtable) (lua_State *L, int narr, int nrec); |
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145 void *(*dll_lua_newuserdata) (lua_State *L, size_t sz); |
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146 int (*dll_lua_getmetatable) (lua_State *L, int objindex); |
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147 void (*dll_lua_setfield) (lua_State *L, int idx, const char *k); |
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148 void (*dll_lua_rawset) (lua_State *L, int idx); |
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149 void (*dll_lua_rawseti) (lua_State *L, int idx, int n); |
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150 int (*dll_lua_setmetatable) (lua_State *L, int objindex); |
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151 void (*dll_lua_call) (lua_State *L, int nargs, int nresults); |
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152 int (*dll_lua_pcall) (lua_State *L, int nargs, int nresults, int errfunc); |
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153 /* libs */ |
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154 int (*dll_luaopen_base) (lua_State *L); |
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155 int (*dll_luaopen_table) (lua_State *L); |
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156 int (*dll_luaopen_string) (lua_State *L); |
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157 int (*dll_luaopen_math) (lua_State *L); |
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158 int (*dll_luaopen_os) (lua_State *L); |
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159 int (*dll_luaopen_package) (lua_State *L); |
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160 int (*dll_luaopen_debug) (lua_State *L); |
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161 |
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162 typedef void **luaV_function; |
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163 typedef struct { |
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164 const char *name; |
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165 luaV_function func; |
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166 } luaV_Reg; |
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167 |
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168 static const luaV_Reg luaV_dll[] = { |
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169 /* lauxlib */ |
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170 {"luaL_register", (luaV_function) &dll_luaL_register}, |
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171 {"luaL_typerror", (luaV_function) &dll_luaL_typerror}, |
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172 {"luaL_checklstring", (luaV_function) &dll_luaL_checklstring}, |
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173 {"luaL_checkinteger", (luaV_function) &dll_luaL_checkinteger}, |
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174 {"luaL_optinteger", (luaV_function) &dll_luaL_optinteger}, |
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175 {"luaL_checktype", (luaV_function) &dll_luaL_checktype}, |
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176 {"luaL_error", (luaV_function) &dll_luaL_error}, |
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177 {"luaL_loadfile", (luaV_function) &dll_luaL_loadfile}, |
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178 {"luaL_loadbuffer", (luaV_function) &dll_luaL_loadbuffer}, |
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179 {"luaL_newstate", (luaV_function) &dll_luaL_newstate}, |
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180 {"luaL_buffinit", (luaV_function) &dll_luaL_buffinit}, |
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181 {"luaL_prepbuffer", (luaV_function) &dll_luaL_prepbuffer}, |
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182 {"luaL_addlstring", (luaV_function) &dll_luaL_addlstring}, |
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183 {"luaL_pushresult", (luaV_function) &dll_luaL_pushresult}, |
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184 /* lua */ |
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185 {"lua_close", (luaV_function) &dll_lua_close}, |
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186 {"lua_gettop", (luaV_function) &dll_lua_gettop}, |
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187 {"lua_settop", (luaV_function) &dll_lua_settop}, |
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188 {"lua_pushvalue", (luaV_function) &dll_lua_pushvalue}, |
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189 {"lua_replace", (luaV_function) &dll_lua_replace}, |
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190 {"lua_isnumber", (luaV_function) &dll_lua_isnumber}, |
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191 {"lua_isstring", (luaV_function) &dll_lua_isstring}, |
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192 {"lua_type", (luaV_function) &dll_lua_type}, |
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193 {"lua_rawequal", (luaV_function) &dll_lua_rawequal}, |
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194 {"lua_tonumber", (luaV_function) &dll_lua_tonumber}, |
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195 {"lua_tointeger", (luaV_function) &dll_lua_tointeger}, |
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196 {"lua_toboolean", (luaV_function) &dll_lua_toboolean}, |
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197 {"lua_tolstring", (luaV_function) &dll_lua_tolstring}, |
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198 {"lua_touserdata", (luaV_function) &dll_lua_touserdata}, |
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199 {"lua_pushnil", (luaV_function) &dll_lua_pushnil}, |
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200 {"lua_pushnumber", (luaV_function) &dll_lua_pushnumber}, |
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201 {"lua_pushinteger", (luaV_function) &dll_lua_pushinteger}, |
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202 {"lua_pushlstring", (luaV_function) &dll_lua_pushlstring}, |
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203 {"lua_pushstring", (luaV_function) &dll_lua_pushstring}, |
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204 {"lua_pushfstring", (luaV_function) &dll_lua_pushfstring}, |
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205 {"lua_pushcclosure", (luaV_function) &dll_lua_pushcclosure}, |
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206 {"lua_pushboolean", (luaV_function) &dll_lua_pushboolean}, |
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207 {"lua_pushlightuserdata", (luaV_function) &dll_lua_pushlightuserdata}, |
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208 {"lua_getfield", (luaV_function) &dll_lua_getfield}, |
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209 {"lua_rawget", (luaV_function) &dll_lua_rawget}, |
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210 {"lua_createtable", (luaV_function) &dll_lua_createtable}, |
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211 {"lua_newuserdata", (luaV_function) &dll_lua_newuserdata}, |
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212 {"lua_getmetatable", (luaV_function) &dll_lua_getmetatable}, |
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213 {"lua_setfield", (luaV_function) &dll_lua_setfield}, |
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214 {"lua_rawset", (luaV_function) &dll_lua_rawset}, |
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215 {"lua_rawseti", (luaV_function) &dll_lua_rawseti}, |
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216 {"lua_setmetatable", (luaV_function) &dll_lua_setmetatable}, |
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217 {"lua_call", (luaV_function) &dll_lua_call}, |
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218 {"lua_pcall", (luaV_function) &dll_lua_pcall}, |
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219 /* libs */ |
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220 {"luaopen_base", (luaV_function) &dll_luaopen_base}, |
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221 {"luaopen_table", (luaV_function) &dll_luaopen_table}, |
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222 {"luaopen_string", (luaV_function) &dll_luaopen_string}, |
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223 {"luaopen_math", (luaV_function) &dll_luaopen_math}, |
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224 {"luaopen_os", (luaV_function) &dll_luaopen_os}, |
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225 {"luaopen_package", (luaV_function) &dll_luaopen_package}, |
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226 {"luaopen_debug", (luaV_function) &dll_luaopen_debug}, |
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227 {NULL, NULL} |
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228 }; |
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229 |
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230 static HINSTANCE hinstLua = 0; |
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231 |
2330 | 232 static void |
233 end_dynamic_lua(void) | |
234 { | |
235 if (hinstLua) | |
236 { | |
237 FreeLibrary(hinstLua); | |
238 hinstLua = 0; | |
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239 } |
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240 } |
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241 |
2330 | 242 static int |
243 lua_link_init(char *libname, int verbose) | |
244 { | |
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245 const luaV_Reg *reg; |
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246 if (hinstLua) return OK; |
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247 hinstLua = LoadLibrary(libname); |
2330 | 248 if (!hinstLua) |
249 { | |
250 if (verbose) | |
251 EMSG2(_(e_loadlib), libname); | |
252 return FAIL; | |
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253 } |
2330 | 254 for (reg = luaV_dll; reg->func; reg++) |
255 { | |
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256 if ((*reg->func = GetProcAddress(hinstLua, reg->name)) == NULL) { |
2330 | 257 FreeLibrary(hinstLua); |
258 hinstLua = 0; | |
259 if (verbose) | |
260 EMSG2(_(e_loadfunc), reg->name); | |
261 return FAIL; | |
262 } | |
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263 } |
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264 return OK; |
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265 } |
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266 |
2330 | 267 int |
268 lua_enabled(int verbose) | |
269 { | |
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270 return lua_link_init(DYNAMIC_LUA_DLL, verbose) == OK; |
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271 } |
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272 |
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273 #endif /* DYNAMIC_LUA */ |
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274 |
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275 |
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276 /* ======= Internal ======= */ |
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277 |
2330 | 278 static void |
279 luaV_newmetatable(lua_State *L, const char *tname) | |
280 { | |
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281 lua_newtable(L); |
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282 lua_pushlightuserdata(L, (void *) tname); |
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283 lua_pushvalue(L, -2); |
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284 lua_rawset(L, LUA_REGISTRYINDEX); |
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285 } |
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286 |
2330 | 287 static void * |
288 luaV_toudata(lua_State *L, int ud, const char *tname) | |
289 { | |
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290 void *p = lua_touserdata(L, ud); |
2330 | 291 |
292 if (p != NULL) /* value is userdata? */ | |
293 { | |
294 if (lua_getmetatable(L, ud)) /* does it have a metatable? */ | |
295 { | |
296 luaV_getfield(L, tname); /* get metatable */ | |
297 if (lua_rawequal(L, -1, -2)) /* MTs match? */ | |
298 { | |
299 lua_pop(L, 2); /* MTs */ | |
300 return p; | |
301 } | |
302 } | |
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303 } |
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304 return NULL; |
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305 } |
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306 |
2330 | 307 static void * |
308 luaV_checkudata(lua_State *L, int ud, const char *tname) | |
309 { | |
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310 void *p = luaV_toudata(L, ud, tname); |
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311 if (p == NULL) luaL_typerror(L, ud, tname); |
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312 return p; |
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313 } |
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314 |
2330 | 315 static void |
316 luaV_pushtypval(lua_State *L, typval_T *tv) | |
317 { | |
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318 if (tv == NULL) luaL_error(L, "null type"); |
2330 | 319 switch (tv->v_type) |
320 { | |
321 case VAR_STRING: | |
322 lua_pushstring(L, (char *) tv->vval.v_string); | |
323 break; | |
324 case VAR_NUMBER: | |
325 lua_pushinteger(L, (int) tv->vval.v_number); | |
326 break; | |
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327 #ifdef FEAT_FLOAT |
2330 | 328 case VAR_FLOAT: |
329 lua_pushnumber(L, (lua_Number) tv->vval.v_float); | |
330 break; | |
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331 #endif |
2330 | 332 case VAR_LIST: { |
333 list_T *l = tv->vval.v_list; | |
334 | |
335 if (l != NULL) | |
336 { | |
337 /* check cache */ | |
338 lua_pushlightuserdata(L, (void *) l); | |
339 lua_rawget(L, LUA_ENVIRONINDEX); | |
340 if (lua_isnil(L, -1)) /* not interned? */ | |
341 { | |
342 listitem_T *li; | |
343 int n = 0; | |
344 lua_pop(L, 1); /* nil */ | |
345 lua_newtable(L); | |
346 lua_pushlightuserdata(L, (void *) l); | |
347 lua_pushvalue(L, -2); | |
348 lua_rawset(L, LUA_ENVIRONINDEX); | |
349 for (li = l->lv_first; li != NULL; li = li->li_next) | |
350 { | |
351 luaV_pushtypval(L, &li->li_tv); | |
352 lua_rawseti(L, -2, ++n); | |
353 } | |
354 } | |
355 } | |
356 else lua_pushnil(L); | |
357 break; | |
358 } | |
359 case VAR_DICT: { | |
360 dict_T *d = tv->vval.v_dict; | |
361 | |
362 if (d != NULL) | |
363 { | |
364 /* check cache */ | |
365 lua_pushlightuserdata(L, (void *) d); | |
366 lua_rawget(L, LUA_ENVIRONINDEX); | |
367 if (lua_isnil(L, -1)) { /* not interned? */ | |
368 hashtab_T *ht = &d->dv_hashtab; | |
369 hashitem_T *hi; | |
370 int n = ht->ht_used; /* remaining items */ | |
371 lua_pop(L, 1); /* nil */ | |
372 lua_newtable(L); | |
373 lua_pushlightuserdata(L, (void *) d); | |
374 lua_pushvalue(L, -2); | |
375 lua_rawset(L, LUA_ENVIRONINDEX); | |
376 for (hi = ht->ht_array; n > 0; hi++) | |
377 { | |
378 if (!HASHITEM_EMPTY(hi)) | |
379 { | |
380 dictitem_T *di = dict_lookup(hi); | |
381 luaV_pushtypval(L, &di->di_tv); | |
382 lua_setfield(L, -2, (char *) hi->hi_key); | |
383 n--; | |
384 } | |
385 } | |
386 } | |
387 } | |
388 else lua_pushnil(L); | |
389 break; | |
390 } | |
391 default: | |
392 luaL_error(L, "invalid type"); | |
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393 } |
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394 } |
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395 |
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396 /* similar to luaL_addlstring, but replaces \0 with \n if toline and |
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397 * \n with \0 otherwise */ |
2330 | 398 static void |
399 luaV_addlstring(luaL_Buffer *b, const char *s, size_t l, int toline) | |
400 { | |
401 while (l--) | |
402 { | |
403 if (*s == '\0' && toline) | |
404 luaL_addchar(b, '\n'); | |
405 else if (*s == '\n' && !toline) | |
406 luaL_addchar(b, '\0'); | |
407 else | |
408 luaL_addchar(b, *s); | |
409 s++; | |
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410 } |
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411 } |
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412 |
2330 | 413 static void |
414 luaV_pushline(lua_State *L, buf_T *buf, linenr_T n) | |
415 { | |
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416 const char *s = (const char *) ml_get_buf(buf, n, FALSE); |
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417 luaL_Buffer b; |
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418 luaL_buffinit(L, &b); |
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419 luaV_addlstring(&b, s, strlen(s), 0); |
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420 luaL_pushresult(&b); |
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421 } |
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422 |
2330 | 423 static char_u * |
424 luaV_toline(lua_State *L, int pos) | |
425 { | |
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426 size_t l; |
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427 const char *s = lua_tolstring(L, pos, &l); |
2330 | 428 |
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429 luaL_Buffer b; |
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430 luaL_buffinit(L, &b); |
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431 luaV_addlstring(&b, s, l, 1); |
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432 luaL_pushresult(&b); |
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433 return (char_u *) lua_tostring(L, -1); |
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434 } |
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435 |
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436 /* pops a string s from the top of the stack and calls mf(t) for pieces t of |
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437 * s separated by newlines */ |
2330 | 438 static void |
439 luaV_msgfunc(lua_State *L, msgfunc_T mf) | |
440 { | |
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441 luaL_Buffer b; |
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442 size_t l; |
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443 const char *p, *s = lua_tolstring(L, -1, &l); |
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444 luaL_buffinit(L, &b); |
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445 luaV_addlstring(&b, s, l, 0); |
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446 luaL_pushresult(&b); |
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447 /* break string */ |
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448 p = s = lua_tolstring(L, -1, &l); |
2330 | 449 while (l--) |
450 { | |
451 if (*p++ == '\0') /* break? */ | |
452 { | |
453 mf((char_u *) s); | |
454 s = p; | |
455 } | |
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456 } |
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457 mf((char_u *) s); |
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458 lua_pop(L, 2); /* original and modified strings */ |
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459 } |
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460 |
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461 |
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462 /* ======= Buffer type ======= */ |
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463 |
2330 | 464 static luaV_Buffer * |
465 luaV_newbuffer(lua_State *L, buf_T *buf) | |
466 { | |
2320
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467 luaV_Buffer *b = (luaV_Buffer *) lua_newuserdata(L, sizeof(luaV_Buffer)); |
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468 *b = buf; |
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469 lua_pushlightuserdata(L, (void *) buf); |
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470 lua_pushvalue(L, -2); |
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471 lua_rawset(L, LUA_ENVIRONINDEX); /* env[buf] = udata */ |
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472 /* to avoid GC, store as key in env */ |
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473 lua_pushvalue(L, -1); |
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474 lua_pushboolean(L, 1); |
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475 lua_rawset(L, LUA_ENVIRONINDEX); /* env[udata] = true */ |
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476 /* set metatable */ |
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477 luaV_getfield(L, LUAVIM_BUFFER); |
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478 lua_setmetatable(L, -2); |
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479 return b; |
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480 } |
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481 |
2330 | 482 static luaV_Buffer * |
483 luaV_pushbuffer (lua_State *L, buf_T *buf) | |
484 { | |
2320
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485 luaV_Buffer *b = NULL; |
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486 if (buf == NULL) |
2330 | 487 lua_pushnil(L); |
2320
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488 else { |
2330 | 489 lua_pushlightuserdata(L, (void *) buf); |
490 lua_rawget(L, LUA_ENVIRONINDEX); | |
491 if (lua_isnil(L, -1)) /* not interned? */ | |
492 { | |
493 lua_pop(L, 1); | |
494 b = luaV_newbuffer(L, buf); | |
495 } | |
496 else | |
497 b = (luaV_Buffer *) lua_touserdata(L, -1); | |
2320
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498 } |
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499 return b; |
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500 } |
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501 |
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502 /* Buffer metamethods */ |
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503 |
2330 | 504 static int |
505 luaV_buffer_tostring(lua_State *L) | |
506 { | |
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507 lua_pushfstring(L, "%s: %p", LUAVIM_BUFFER, lua_touserdata(L, 1)); |
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508 return 1; |
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509 } |
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510 |
2330 | 511 static int |
512 luaV_buffer_len(lua_State *L) | |
513 { | |
2320
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514 luaV_Buffer *b = lua_touserdata(L, 1); |
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515 lua_pushinteger(L, (*b)->b_ml.ml_line_count); |
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516 return 1; |
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517 } |
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518 |
2330 | 519 static int |
520 luaV_buffer_call(lua_State *L) | |
521 { | |
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522 luaV_Buffer *b = (luaV_Buffer *) lua_touserdata(L, 1); |
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523 lua_settop(L, 1); |
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524 set_curbuf(*b, DOBUF_SPLIT); |
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525 return 1; |
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526 } |
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527 |
2330 | 528 static int |
529 luaV_buffer_index(lua_State *L) | |
530 { | |
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531 luaV_Buffer *b = (luaV_Buffer *) lua_touserdata(L, 1); |
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532 linenr_T n = (linenr_T) lua_tointeger(L, 2); |
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533 if (n > 0 && n <= (*b)->b_ml.ml_line_count) |
2330 | 534 luaV_pushline(L, *b, n); |
535 else if (lua_isstring(L, 2)) | |
536 { | |
537 const char *s = lua_tostring(L, 2); | |
538 if (strncmp(s, "name", 4) == 0) | |
539 lua_pushstring(L, (char *) (*b)->b_sfname); | |
540 else if (strncmp(s, "fname", 5) == 0) | |
541 lua_pushstring(L, (char *) (*b)->b_ffname); | |
542 else if (strncmp(s, "number", 6) == 0) | |
543 lua_pushinteger(L, (*b)->b_fnum); | |
544 /* methods */ | |
545 else if (strncmp(s, "insert", 6) == 0 | |
546 || strncmp(s, "next", 4) == 0 | |
547 || strncmp(s, "previous", 8) == 0 | |
548 || strncmp(s, "isvalid", 7) == 0) | |
549 { | |
550 lua_getmetatable(L, 1); | |
551 lua_getfield(L, -1, s); | |
552 } | |
553 else | |
554 lua_pushnil(L); | |
2320
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555 } |
2330 | 556 else |
557 lua_pushnil(L); | |
2320
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558 return 1; |
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559 } |
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560 |
2330 | 561 static int |
562 luaV_buffer_newindex(lua_State *L) | |
563 { | |
2320
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564 luaV_Buffer *b = (luaV_Buffer *) lua_touserdata(L, 1); |
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565 linenr_T n = (linenr_T) luaL_checkinteger(L, 2); |
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566 #ifdef HAVE_SANDBOX |
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567 luaV_checksandbox(L); |
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568 #endif |
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569 if (n < 1 || n > (*b)->b_ml.ml_line_count) |
2330 | 570 luaL_error(L, "invalid line number"); |
571 if (lua_isnil(L, 3)) /* delete line */ | |
572 { | |
573 buf_T *buf = curbuf; | |
574 curbuf = *b; | |
575 if (u_savedel(n, 1L) == FAIL) | |
576 { | |
577 curbuf = buf; | |
578 luaL_error(L, "cannot save undo information"); | |
579 } | |
580 else if (ml_delete(n, FALSE) == FAIL) | |
581 { | |
582 curbuf = buf; | |
583 luaL_error(L, "cannot delete line"); | |
584 } | |
585 else { | |
586 deleted_lines_mark(n, 1L); | |
587 if (*b == curwin->w_buffer) /* fix cursor in current window? */ | |
588 { | |
589 if (curwin->w_cursor.lnum >= n) | |
590 { | |
591 if (curwin->w_cursor.lnum > n) | |
592 { | |
593 curwin->w_cursor.lnum -= 1; | |
594 check_cursor_col(); | |
595 } | |
596 else check_cursor(); | |
597 changed_cline_bef_curs(); | |
598 } | |
599 invalidate_botline(); | |
600 } | |
601 } | |
602 curbuf = buf; | |
2320
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603 } |
2330 | 604 else if (lua_isstring(L, 3)) /* update line */ |
605 { | |
606 buf_T *buf = curbuf; | |
607 curbuf = *b; | |
608 if (u_savesub(n) == FAIL) | |
609 { | |
610 curbuf = buf; | |
611 luaL_error(L, "cannot save undo information"); | |
612 } | |
613 else if (ml_replace(n, luaV_toline(L, 3), TRUE) == FAIL) | |
614 { | |
615 curbuf = buf; | |
616 luaL_error(L, "cannot replace line"); | |
617 } | |
618 else changed_bytes(n, 0); | |
619 curbuf = buf; | |
620 if (*b == curwin->w_buffer) | |
621 check_cursor_col(); | |
2320
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622 } |
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623 else |
2330 | 624 luaL_error(L, "wrong argument to change line"); |
2320
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625 return 0; |
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626 } |
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627 |
2330 | 628 static int |
629 luaV_buffer_insert(lua_State *L) | |
630 { | |
2320
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631 luaV_Buffer *b = luaV_checkudata(L, 1, LUAVIM_BUFFER); |
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632 linenr_T last = (*b)->b_ml.ml_line_count; |
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633 linenr_T n = (linenr_T) luaL_optinteger(L, 3, last); |
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634 buf_T *buf; |
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635 luaL_checktype(L, 2, LUA_TSTRING); |
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636 #ifdef HAVE_SANDBOX |
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637 luaV_checksandbox(L); |
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638 #endif |
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639 /* fix insertion line */ |
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640 if (n < 0) n = 0; |
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641 if (n > last) n = last; |
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642 /* insert */ |
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643 buf = curbuf; |
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644 curbuf = *b; |
2330 | 645 if (u_save(n, n + 1) == FAIL) |
646 { | |
647 curbuf = buf; | |
648 luaL_error(L, "cannot save undo information"); | |
2320
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649 } |
2330 | 650 else if (ml_append(n, luaV_toline(L, 2), 0, FALSE) == FAIL) |
651 { | |
652 curbuf = buf; | |
653 luaL_error(L, "cannot insert line"); | |
2320
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654 } |
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655 else |
2330 | 656 appended_lines_mark(n, 1L); |
2320
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657 curbuf = buf; |
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658 update_screen(VALID); |
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659 return 0; |
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660 } |
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661 |
2330 | 662 static int |
663 luaV_buffer_next(lua_State *L) | |
664 { | |
2320
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665 luaV_Buffer *b = luaV_checkudata(L, 1, LUAVIM_BUFFER); |
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666 luaV_pushbuffer(L, (*b)->b_next); |
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667 return 1; |
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668 } |
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669 |
2330 | 670 static int |
671 luaV_buffer_previous(lua_State *L) | |
672 { | |
2320
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673 luaV_Buffer *b = luaV_checkudata(L, 1, LUAVIM_BUFFER); |
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674 luaV_pushbuffer(L, (*b)->b_prev); |
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675 return 1; |
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676 } |
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677 |
2330 | 678 static int |
679 luaV_buffer_isvalid(lua_State *L) | |
680 { | |
2320
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681 luaV_Buffer *b = luaV_checkudata(L, 1, LUAVIM_BUFFER); |
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682 lua_pushlightuserdata(L, (void *) (*b)); |
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683 lua_rawget(L, LUA_ENVIRONINDEX); |
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684 lua_pushboolean(L, !lua_isnil(L, -1)); |
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|
685 return 1; |
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|
686 } |
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|
687 |
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|
688 static const luaL_Reg luaV_Buffer_mt[] = { |
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|
689 {"__tostring", luaV_buffer_tostring}, |
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|
690 {"__len", luaV_buffer_len}, |
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|
691 {"__call", luaV_buffer_call}, |
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|
692 {"__index", luaV_buffer_index}, |
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|
693 {"__newindex", luaV_buffer_newindex}, |
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|
694 {"insert", luaV_buffer_insert}, |
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diff
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|
695 {"next", luaV_buffer_next}, |
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|
696 {"previous", luaV_buffer_previous}, |
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parents:
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|
697 {"isvalid", luaV_buffer_isvalid}, |
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|
698 {NULL, NULL} |
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|
699 }; |
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|
700 |
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|
701 |
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|
702 /* ======= Window type ======= */ |
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|
703 |
2330 | 704 static luaV_Window * |
705 luaV_newwindow(lua_State *L, win_T *win) | |
706 { | |
2320
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|
707 luaV_Window *w = (luaV_Window *) lua_newuserdata(L, sizeof(luaV_Window)); |
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|
708 *w = win; |
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|
709 lua_pushlightuserdata(L, (void *) win); |
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parents:
diff
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|
710 lua_pushvalue(L, -2); |
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|
711 lua_rawset(L, LUA_ENVIRONINDEX); /* env[win] = udata */ |
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|
712 /* to avoid GC, store as key in env */ |
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parents:
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|
713 lua_pushvalue(L, -1); |
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parents:
diff
changeset
|
714 lua_pushboolean(L, 1); |
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parents:
diff
changeset
|
715 lua_rawset(L, LUA_ENVIRONINDEX); /* env[udata] = true */ |
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diff
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|
716 /* set metatable */ |
966a5609669e
Added Lua interfae. (Luis Carvalho)
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diff
changeset
|
717 luaV_getfield(L, LUAVIM_WINDOW); |
966a5609669e
Added Lua interfae. (Luis Carvalho)
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parents:
diff
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|
718 lua_setmetatable(L, -2); |
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parents:
diff
changeset
|
719 return w; |
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parents:
diff
changeset
|
720 } |
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parents:
diff
changeset
|
721 |
2330 | 722 static luaV_Window * |
723 luaV_pushwindow(lua_State *L, win_T *win) | |
724 { | |
2320
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Added Lua interfae. (Luis Carvalho)
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|
725 luaV_Window *w = NULL; |
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Added Lua interfae. (Luis Carvalho)
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|
726 if (win == NULL) |
2330 | 727 lua_pushnil(L); |
2320
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|
728 else { |
2330 | 729 lua_pushlightuserdata(L, (void *) win); |
730 lua_rawget(L, LUA_ENVIRONINDEX); | |
731 if (lua_isnil(L, -1)) /* not interned? */ | |
732 { | |
733 lua_pop(L, 1); | |
734 w = luaV_newwindow(L, win); | |
735 } | |
736 else w = (luaV_Window *) lua_touserdata(L, -1); | |
2320
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parents:
diff
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|
737 } |
966a5609669e
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parents:
diff
changeset
|
738 return w; |
966a5609669e
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parents:
diff
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|
739 } |
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parents:
diff
changeset
|
740 |
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Bram Moolenaar <bram@vim.org>
parents:
diff
changeset
|
741 /* Window metamethods */ |
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parents:
diff
changeset
|
742 |
2330 | 743 static int |
744 luaV_window_tostring(lua_State *L) | |
745 { | |
2320
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Added Lua interfae. (Luis Carvalho)
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parents:
diff
changeset
|
746 lua_pushfstring(L, "%s: %p", LUAVIM_WINDOW, lua_touserdata(L, 1)); |
966a5609669e
Added Lua interfae. (Luis Carvalho)
Bram Moolenaar <bram@vim.org>
parents:
diff
changeset
|
747 return 1; |
966a5609669e
Added Lua interfae. (Luis Carvalho)
Bram Moolenaar <bram@vim.org>
parents:
diff
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|
748 } |
966a5609669e
Added Lua interfae. (Luis Carvalho)
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parents:
diff
changeset
|
749 |
2330 | 750 static int |
751 luaV_window_call(lua_State *L) | |
752 { | |
2320
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parents:
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|
753 luaV_Window *w = (luaV_Window *) lua_touserdata(L, 1); |
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Added Lua interfae. (Luis Carvalho)
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parents:
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|
754 lua_settop(L, 1); |
966a5609669e
Added Lua interfae. (Luis Carvalho)
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parents:
diff
changeset
|
755 win_goto(*w); |
966a5609669e
Added Lua interfae. (Luis Carvalho)
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parents:
diff
changeset
|
756 return 1; |
966a5609669e
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diff
changeset
|
757 } |
966a5609669e
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parents:
diff
changeset
|
758 |
2330 | 759 static int |
760 luaV_window_index(lua_State *L) | |
761 { | |
2320
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Added Lua interfae. (Luis Carvalho)
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parents:
diff
changeset
|
762 luaV_Window *w = (luaV_Window *) lua_touserdata(L, 1); |
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parents:
diff
changeset
|
763 const char *s = luaL_checkstring(L, 2); |
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Added Lua interfae. (Luis Carvalho)
Bram Moolenaar <bram@vim.org>
parents:
diff
changeset
|
764 if (strncmp(s, "buffer", 6) == 0) |
2330 | 765 luaV_pushbuffer(L, (*w)->w_buffer); |
2320
966a5609669e
Added Lua interfae. (Luis Carvalho)
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parents:
diff
changeset
|
766 else if (strncmp(s, "line", 4) == 0) |
2330 | 767 lua_pushinteger(L, (*w)->w_cursor.lnum); |
2320
966a5609669e
Added Lua interfae. (Luis Carvalho)
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parents:
diff
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|
768 else if (strncmp(s, "col", 3) == 0) |
2330 | 769 lua_pushinteger(L, (*w)->w_cursor.col + 1); |
2320
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Bram Moolenaar <bram@vim.org>
parents:
diff
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|
770 #ifdef FEAT_VERTSPLIT |
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parents:
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|
771 else if (strncmp(s, "width", 5) == 0) |
2330 | 772 lua_pushinteger(L, W_WIDTH((*w))); |
2320
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parents:
diff
changeset
|
773 #endif |
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Added Lua interfae. (Luis Carvalho)
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parents:
diff
changeset
|
774 else if (strncmp(s, "height", 6) == 0) |
2330 | 775 lua_pushinteger(L, (*w)->w_height); |
2320
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Added Lua interfae. (Luis Carvalho)
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parents:
diff
changeset
|
776 /* methods */ |
966a5609669e
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parents:
diff
changeset
|
777 else if (strncmp(s, "next", 4) == 0 |
2330 | 778 || strncmp(s, "previous", 8) == 0 |
779 || strncmp(s, "isvalid", 7) == 0) | |
780 { | |
781 lua_getmetatable(L, 1); | |
782 lua_getfield(L, -1, s); | |
2320
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Added Lua interfae. (Luis Carvalho)
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diff
changeset
|
783 } |
966a5609669e
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parents:
diff
changeset
|
784 else |
2330 | 785 lua_pushnil(L); |
2320
966a5609669e
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parents:
diff
changeset
|
786 return 1; |
966a5609669e
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parents:
diff
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|
787 } |
966a5609669e
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parents:
diff
changeset
|
788 |
2330 | 789 static int |
790 luaV_window_newindex (lua_State *L) | |
791 { | |
2320
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diff
changeset
|
792 luaV_Window *w = (luaV_Window *) lua_touserdata(L, 1); |
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parents:
diff
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|
793 const char *s = luaL_checkstring(L, 2); |
966a5609669e
Added Lua interfae. (Luis Carvalho)
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parents:
diff
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|
794 int v = luaL_checkinteger(L, 3); |
2330 | 795 if (strncmp(s, "line", 4) == 0) |
796 { | |
2320
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Added Lua interfae. (Luis Carvalho)
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diff
changeset
|
797 #ifdef HAVE_SANDBOX |
2330 | 798 luaV_checksandbox(L); |
2320
966a5609669e
Added Lua interfae. (Luis Carvalho)
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parents:
diff
changeset
|
799 #endif |
2330 | 800 if (v < 1 || v > (*w)->w_buffer->b_ml.ml_line_count) |
801 luaL_error(L, "line out of range"); | |
802 (*w)->w_cursor.lnum = v; | |
803 update_screen(VALID); | |
2320
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parents:
diff
changeset
|
804 } |
2330 | 805 else if (strncmp(s, "col", 3) == 0) |
806 { | |
2320
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parents:
diff
changeset
|
807 #ifdef HAVE_SANDBOX |
2330 | 808 luaV_checksandbox(L); |
2320
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Bram Moolenaar <bram@vim.org>
parents:
diff
changeset
|
809 #endif |
2330 | 810 (*w)->w_cursor.col = v - 1; |
811 update_screen(VALID); | |
2320
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parents:
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changeset
|
812 } |
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parents:
diff
changeset
|
813 #ifdef FEAT_VERTSPLIT |
2330 | 814 else if (strncmp(s, "width", 5) == 0) |
815 { | |
816 win_T *win = curwin; | |
2320
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Bram Moolenaar <bram@vim.org>
parents:
diff
changeset
|
817 #ifdef FEAT_GUI |
2330 | 818 need_mouse_correct = TRUE; |
2320
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parents:
diff
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|
819 #endif |
2330 | 820 curwin = *w; |
821 win_setwidth(v); | |
822 curwin = win; | |
2320
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parents:
diff
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|
823 } |
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parents:
diff
changeset
|
824 #endif |
2330 | 825 else if (strncmp(s, "height", 6) == 0) |
826 { | |
827 win_T *win = curwin; | |
2320
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parents:
diff
changeset
|
828 #ifdef FEAT_GUI |
2330 | 829 need_mouse_correct = TRUE; |
2320
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|
830 #endif |
2330 | 831 curwin = *w; |
832 win_setheight(v); | |
833 curwin = win; | |
2320
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changeset
|
834 } |
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parents:
diff
changeset
|
835 else |
2330 | 836 luaL_error(L, "invalid window property: `%s'", s); |
2320
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|
837 return 0; |
966a5609669e
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parents:
diff
changeset
|
838 } |
966a5609669e
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parents:
diff
changeset
|
839 |
2330 | 840 static int |
841 luaV_window_next(lua_State *L) | |
842 { | |
2320
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|
843 luaV_Window *w = luaV_checkudata(L, 1, LUAVIM_WINDOW); |
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parents:
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changeset
|
844 luaV_pushwindow(L, (*w)->w_next); |
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parents:
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|
845 return 1; |
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diff
changeset
|
846 } |
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parents:
diff
changeset
|
847 |
2330 | 848 static int |
849 luaV_window_previous(lua_State *L) | |
850 { | |
2320
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changeset
|
851 luaV_Window *w = luaV_checkudata(L, 1, LUAVIM_WINDOW); |
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parents:
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|
852 luaV_pushwindow(L, (*w)->w_prev); |
966a5609669e
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diff
changeset
|
853 return 1; |
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parents:
diff
changeset
|
854 } |
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parents:
diff
changeset
|
855 |
2330 | 856 static int |
857 luaV_window_isvalid(lua_State *L) | |
858 { | |
2320
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changeset
|
859 luaV_Window *w = luaV_checkudata(L, 1, LUAVIM_WINDOW); |
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860 lua_pushlightuserdata(L, (void *) (*w)); |
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|
861 lua_rawget(L, LUA_ENVIRONINDEX); |
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|
862 lua_pushboolean(L, !lua_isnil(L, -1)); |
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|
863 return 1; |
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|
864 } |
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|
865 |
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|
866 static const luaL_Reg luaV_Window_mt[] = { |
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Added Lua interfae. (Luis Carvalho)
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|
867 {"__tostring", luaV_window_tostring}, |
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|
868 {"__call", luaV_window_call}, |
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Added Lua interfae. (Luis Carvalho)
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|
869 {"__index", luaV_window_index}, |
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Added Lua interfae. (Luis Carvalho)
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|
870 {"__newindex", luaV_window_newindex}, |
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|
871 {"next", luaV_window_next}, |
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|
872 {"previous", luaV_window_previous}, |
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|
873 {"isvalid", luaV_window_isvalid}, |
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|
874 {NULL, NULL} |
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|
875 }; |
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|
876 |
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|
877 |
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|
878 /* ======= Vim module ======= */ |
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Added Lua interfae. (Luis Carvalho)
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|
879 |
2330 | 880 static int |
881 luaV_print(lua_State *L) | |
882 { | |
2320
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|
883 int i, n = lua_gettop(L); /* nargs */ |
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|
884 const char *s; |
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|
885 size_t l; |
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|
886 luaL_Buffer b; |
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|
887 luaL_buffinit(L, &b); |
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|
888 lua_getglobal(L, "tostring"); |
2330 | 889 for (i = 1; i <= n; i++) |
890 { | |
891 lua_pushvalue(L, -1); /* tostring */ | |
892 lua_pushvalue(L, i); /* arg */ | |
893 lua_call(L, 1, 1); | |
894 s = lua_tolstring(L, -1, &l); | |
895 if (s == NULL) | |
896 return luaL_error(L, "cannot convert to string"); | |
897 if (i > 1) luaL_addchar(&b, ' '); /* use space instead of tab */ | |
898 luaV_addlstring(&b, s, l, 0); | |
899 lua_pop(L, 1); | |
2320
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|
900 } |
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|
901 luaL_pushresult(&b); |
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|
902 luaV_msg(L); |
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|
903 return 0; |
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|
904 } |
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|
905 |
2330 | 906 static int |
907 luaV_command(lua_State *L) | |
908 { | |
2320
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|
909 do_cmdline_cmd((char_u *) luaL_checkstring(L, 1)); |
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|
910 update_screen(VALID); |
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|
911 return 0; |
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|
912 } |
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|
913 |
2330 | 914 static int |
915 luaV_eval(lua_State *L) | |
916 { | |
2320
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|
917 typval_T *tv = eval_expr((char_u *) luaL_checkstring(L, 1), NULL); |
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|
918 if (tv == NULL) luaL_error(L, "invalid expression"); |
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|
919 luaV_pushtypval(L, tv); |
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diff
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|
920 return 1; |
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|
921 } |
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|
922 |
2330 | 923 static int |
2331
3840b7508835
Make it easier to build with Lua. Remove compiler warnings.
Bram Moolenaar <bram@vim.org>
parents:
2330
diff
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|
924 luaV_beep(lua_State *L UNUSED) |
2330 | 925 { |
2320
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|
926 vim_beep(); |
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|
927 return 0; |
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|
928 } |
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|
929 |
2330 | 930 static int |
931 luaV_line(lua_State *L) | |
932 { | |
2320
966a5609669e
Added Lua interfae. (Luis Carvalho)
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|
933 luaV_pushline(L, curbuf, curwin->w_cursor.lnum); |
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|
934 return 1; |
966a5609669e
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|
935 } |
966a5609669e
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diff
changeset
|
936 |
2330 | 937 static int |
938 luaV_buffer(lua_State *L) | |
939 { | |
2320
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|
940 buf_T *buf; |
2330 | 941 if (lua_isstring(L, 1)) /* get by number or name? */ |
942 { | |
943 if (lua_isnumber(L, 1)) /* by number? */ | |
944 { | |
945 int n = lua_tointeger(L, 1); | |
946 for (buf = firstbuf; buf != NULL; buf = buf->b_next) | |
947 if (buf->b_fnum == n) break; | |
948 } | |
949 else { /* by name */ | |
950 size_t l; | |
951 const char *s = lua_tolstring(L, 1, &l); | |
952 for (buf = firstbuf; buf != NULL; buf = buf->b_next) | |
953 { | |
954 if (buf->b_ffname == NULL || buf->b_sfname == NULL) | |
955 { | |
956 if (l == 0) break; | |
957 } | |
2331
3840b7508835
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Bram Moolenaar <bram@vim.org>
parents:
2330
diff
changeset
|
958 else if (strncmp(s, (char *)buf->b_ffname, l) == 0 |
3840b7508835
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Bram Moolenaar <bram@vim.org>
parents:
2330
diff
changeset
|
959 || strncmp(s, (char *)buf->b_sfname, l) == 0) |
2330 | 960 break; |
961 } | |
962 } | |
963 if (buf == NULL) /* not found? */ | |
964 lua_pushnil(L); | |
965 else | |
966 luaV_pushbuffer(L, buf); | |
2320
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parents:
diff
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|
967 } |
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diff
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|
968 else { |
2330 | 969 buf = (lua_toboolean(L, 1)) ? firstbuf : curbuf; /* first buffer? */ |
970 luaV_pushbuffer(L, buf); | |
2320
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parents:
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|
971 } |
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diff
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|
972 return 1; |
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|
973 } |
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parents:
diff
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|
974 |
2330 | 975 static int |
976 luaV_window(lua_State *L) | |
977 { | |
2320
966a5609669e
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parents:
diff
changeset
|
978 win_T *win; |
2330 | 979 if (lua_isnumber(L, 1)) /* get by number? */ |
980 { | |
981 int n = lua_tointeger(L, 1); | |
982 for (win = firstwin; win != NULL; win = win->w_next, n--) | |
983 if (n == 1) break; | |
984 if (win == NULL) /* not found? */ | |
985 lua_pushnil(L); | |
986 else | |
987 luaV_pushwindow(L, win); | |
2320
966a5609669e
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|
988 } |
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|
989 else { |
2330 | 990 win = (lua_toboolean(L, 1)) ? firstwin : curwin; /* first window? */ |
991 luaV_pushwindow(L, win); | |
2320
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|
992 } |
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|
993 return 1; |
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|
994 } |
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changeset
|
995 |
2330 | 996 static int |
997 luaV_open(lua_State *L) | |
998 { | |
2320
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|
999 luaV_Buffer *b; |
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|
1000 char_u *s = NULL; |
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|
1001 #ifdef HAVE_SANDBOX |
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|
1002 luaV_checksandbox(L); |
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|
1003 #endif |
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|
1004 if (lua_isstring(L, 1)) s = (char_u *) lua_tostring(L, 1); |
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diff
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|
1005 b = luaV_pushbuffer(L, buflist_new(s, NULL, 1L, BLN_LISTED)); |
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|
1006 return 1; |
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|
1007 } |
966a5609669e
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|
1008 |
2330 | 1009 static int |
1010 luaV_isbuffer(lua_State *L) | |
1011 { | |
2320
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Added Lua interfae. (Luis Carvalho)
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|
1012 lua_pushboolean(L, luaV_toudata(L, 1, LUAVIM_BUFFER) != NULL); |
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|
1013 return 1; |
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|
1014 } |
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|
1015 |
2330 | 1016 static int |
1017 luaV_iswindow(lua_State *L) | |
1018 { | |
2320
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|
1019 lua_pushboolean(L, luaV_toudata(L, 1, LUAVIM_WINDOW) != NULL); |
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|
1020 return 1; |
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|
1021 } |
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|
1022 |
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|
1023 /* for freeing buffer and window objects; lightuserdata as arg */ |
2330 | 1024 static int |
1025 luaV_free(lua_State *L) | |
1026 { | |
2320
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|
1027 lua_pushvalue(L, 1); /* lightudata */ |
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|
1028 lua_rawget(L, LUA_ENVIRONINDEX); |
2330 | 1029 if (!lua_isnil(L, -1)) |
1030 { | |
1031 lua_pushnil(L); | |
1032 lua_rawset(L, LUA_ENVIRONINDEX); /* env[udata] = nil */ | |
1033 lua_pushnil(L); | |
1034 lua_rawset(L, LUA_ENVIRONINDEX); /* env[lightudata] = nil */ | |
2320
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|
1035 } |
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|
1036 return 0; |
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|
1037 } |
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|
1038 |
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changeset
|
1039 static const luaL_Reg luaV_module[] = { |
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|
1040 {"command", luaV_command}, |
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|
1041 {"eval", luaV_eval}, |
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|
1042 {"beep", luaV_beep}, |
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|
1043 {"line", luaV_line}, |
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|
1044 {"buffer", luaV_buffer}, |
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|
1045 {"window", luaV_window}, |
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|
1046 {"open", luaV_open}, |
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|
1047 {"isbuffer", luaV_isbuffer}, |
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1048 {"iswindow", luaV_iswindow}, |
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1049 {NULL, NULL} |
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1050 }; |
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1051 |
2330 | 1052 static int |
1053 luaopen_vim(lua_State *L) | |
1054 { | |
2320
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1055 /* set environment */ |
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1056 lua_newtable(L); |
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1057 lua_newtable(L); |
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1058 lua_pushliteral(L, "v"); |
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1059 lua_setfield(L, -2, "__mode"); |
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1060 lua_setmetatable(L, -2); |
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|
1061 lua_replace(L, LUA_ENVIRONINDEX); |
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1062 /* print */ |
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1063 lua_pushcfunction(L, luaV_print); |
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1064 lua_setglobal(L, "print"); |
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1065 /* free */ |
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|
1066 lua_pushlightuserdata(L, (void *) LUAVIM_FREE); |
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1067 lua_pushcfunction(L, luaV_free); |
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1068 lua_rawset(L, LUA_REGISTRYINDEX); |
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1069 /* register */ |
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1070 luaV_newmetatable(L, LUAVIM_BUFFER); |
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1071 luaL_register(L, NULL, luaV_Buffer_mt); |
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1072 luaV_newmetatable(L, LUAVIM_WINDOW); |
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1073 luaL_register(L, NULL, luaV_Window_mt); |
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1074 luaL_register(L, LUAVIM_NAME, luaV_module); |
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1075 return 0; |
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1076 } |
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1077 |
2330 | 1078 static lua_State * |
1079 luaV_newstate(void) | |
1080 { | |
2320
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1081 lua_State *L = luaL_newstate(); |
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1082 const luaL_Reg luaV_core_libs[] = { |
2330 | 1083 {"", luaopen_base}, |
1084 {LUA_TABLIBNAME, luaopen_table}, | |
1085 {LUA_STRLIBNAME, luaopen_string}, | |
1086 {LUA_MATHLIBNAME, luaopen_math}, | |
1087 {LUA_OSLIBNAME, luaopen_os}, /* restricted */ | |
1088 {LUA_LOADLIBNAME, luaopen_package}, | |
1089 {LUA_DBLIBNAME, luaopen_debug}, | |
1090 {NULL, NULL} | |
2320
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1091 }; |
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1092 const char *os_funcs[] = { |
2330 | 1093 "date", "clock", "time", "difftime", "getenv", NULL |
2320
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1094 }; |
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1095 const luaL_Reg *reg = luaV_core_libs; |
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1096 const char **s = os_funcs; |
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1097 /* core libs */ |
2330 | 1098 for ( ; reg->func; reg++) |
1099 { | |
1100 lua_pushcfunction(L, reg->func); | |
1101 lua_pushstring(L, reg->name); | |
1102 lua_call(L, 1, 0); | |
2320
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1103 } |
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1104 /* restricted os lib */ |
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1105 lua_getglobal(L, LUA_OSLIBNAME); |
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1106 lua_newtable(L); |
2330 | 1107 for ( ; *s; s++) |
1108 { | |
1109 lua_getfield(L, -2, *s); | |
1110 lua_setfield(L, -2, *s); | |
2320
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1111 } |
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1112 lua_setglobal(L, LUA_OSLIBNAME); |
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1113 lua_pop(L, 1); /* os table */ |
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1114 /* vim */ |
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1115 lua_pushcfunction(L, luaopen_vim); |
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1116 lua_call(L, 0, 0); |
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1117 return L; |
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1118 } |
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1119 |
2330 | 1120 static void |
1121 luaV_setrange(lua_State *L, int line1, int line2) | |
1122 { | |
2320
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1123 lua_getglobal(L, LUAVIM_NAME); |
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1124 lua_pushinteger(L, line1); |
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1125 lua_setfield(L, -2, "firstline"); |
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1126 lua_pushinteger(L, line2); |
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1127 lua_setfield(L, -2, "lastline"); |
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1128 lua_pop(L, 1); /* vim table */ |
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1129 } |
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1130 |
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1131 |
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1132 /* ======= Interface ======= */ |
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1133 |
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1134 static lua_State *L = NULL; |
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1135 |
2330 | 1136 static int |
1137 lua_init(void) | |
1138 { | |
1139 if (L == NULL) | |
1140 { | |
2320
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1141 #ifdef DYNAMIC_LUA |
2330 | 1142 if (!lua_enabled(TRUE)) |
1143 { | |
1144 EMSG(_("Lua library cannot be loaded.")); | |
1145 return FAIL; | |
1146 } | |
2320
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1147 #endif |
2330 | 1148 L = luaV_newstate(); |
2320
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1149 } |
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1150 return OK; |
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1151 } |
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1152 |
2330 | 1153 void |
1154 lua_end(void) | |
1155 { | |
1156 if (L != NULL) | |
1157 { | |
1158 lua_close(L); | |
1159 L = NULL; | |
2320
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1160 #ifdef DYNAMIC_LUA |
2330 | 1161 end_dynamic_lua(); |
2320
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1162 #endif |
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1163 } |
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1164 } |
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1165 |
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1166 /* ex commands */ |
2330 | 1167 void |
1168 ex_lua(exarg_T *eap) | |
1169 { | |
2320
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1170 char *script; |
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1171 if (lua_init() == FAIL) return; |
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1172 script = (char *) script_get(eap, eap->arg); |
2330 | 1173 if (!eap->skip) |
1174 { | |
1175 char *s = (script) ? script : (char *) eap->arg; | |
1176 luaV_setrange(L, eap->line1, eap->line2); | |
1177 if (luaL_loadbuffer(L, s, strlen(s), LUAVIM_CHUNKNAME) | |
1178 || lua_pcall(L, 0, 0, 0)) | |
1179 luaV_emsg(L); | |
2320
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1180 } |
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1181 if (script != NULL) vim_free(script); |
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1182 } |
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1183 |
2330 | 1184 void |
1185 ex_luado(exarg_T *eap) | |
1186 { | |
2320
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1187 linenr_T l; |
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1188 const char *s = (const char *) eap->arg; |
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1189 luaL_Buffer b; |
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1190 size_t len; |
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1191 if (lua_init() == FAIL) return; |
2330 | 1192 if (u_save(eap->line1 - 1, eap->line2 + 1) == FAIL) |
1193 { | |
1194 EMSG(_("cannot save undo information")); | |
1195 return; | |
2320
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1196 } |
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1197 luaV_setrange(L, eap->line1, eap->line2); |
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1198 luaL_buffinit(L, &b); |
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1199 luaL_addlstring(&b, "return function(line) ", 22); /* header */ |
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1200 luaL_addlstring(&b, s, strlen(s)); |
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|
1201 luaL_addlstring(&b, " end", 4); /* footer */ |
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|
1202 luaL_pushresult(&b); |
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|
1203 s = lua_tolstring(L, -1, &len); |
2330 | 1204 if (luaL_loadbuffer(L, s, len, LUAVIM_CHUNKNAME)) |
1205 { | |
1206 luaV_emsg(L); | |
1207 lua_pop(L, 1); /* function body */ | |
1208 return; | |
2320
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1209 } |
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1210 lua_call(L, 0, 1); |
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|
1211 lua_replace(L, -2); /* function -> body */ |
2330 | 1212 for (l = eap->line1; l <= eap->line2; l++) |
1213 { | |
1214 lua_pushvalue(L, -1); /* function */ | |
1215 luaV_pushline(L, curbuf, l); /* current line as arg */ | |
1216 if (lua_pcall(L, 1, 1, 0)) | |
1217 { | |
1218 luaV_emsg(L); | |
1219 break; | |
1220 } | |
1221 if (lua_isstring(L, -1)) /* update line? */ | |
1222 { | |
2320
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1223 #ifdef HAVE_SANDBOX |
2330 | 1224 luaV_checksandbox(L); |
2320
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1225 #endif |
2330 | 1226 ml_replace(l, luaV_toline(L, -1), TRUE); |
1227 changed_bytes(l, 0); | |
1228 lua_pop(L, 1); /* result from luaV_toline */ | |
1229 } | |
1230 lua_pop(L, 1); /* line */ | |
2320
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1231 } |
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|
1232 lua_pop(L, 1); /* function */ |
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|
1233 check_cursor(); |
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1234 update_screen(NOT_VALID); |
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1235 } |
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1236 |
2330 | 1237 void |
1238 ex_luafile(exarg_T *eap) | |
1239 { | |
1240 if (lua_init() == FAIL) | |
1241 return; | |
1242 if (!eap->skip) | |
1243 { | |
1244 luaV_setrange(L, eap->line1, eap->line2); | |
1245 if (luaL_loadfile(L, (char *) eap->arg) || lua_pcall(L, 0, 0, 0)) | |
1246 luaV_emsg(L); | |
2320
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1247 } |
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1248 } |
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1249 |
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1250 /* buffer */ |
2330 | 1251 void |
1252 lua_buffer_free(buf_T *buf) | |
1253 { | |
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1254 if (lua_init() == FAIL) return; |
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1255 luaV_getfield(L, LUAVIM_FREE); |
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1256 lua_pushlightuserdata(L, (void *) buf); |
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1257 lua_call(L, 1, 0); |
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1258 } |
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1259 |
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1260 /* window */ |
2330 | 1261 void |
1262 lua_window_free(win_T *win) | |
1263 { | |
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1264 if (lua_init() == FAIL) return; |
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1265 luaV_getfield(L, LUAVIM_FREE); |
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1266 lua_pushlightuserdata(L, (void *) win); |
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1267 lua_call(L, 1, 0); |
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1268 } |
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1269 |
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1270 #endif |