diff options
Diffstat (limited to 'vis.c')
| -rw-r--r-- | vis.c | 84 |
1 files changed, 81 insertions, 3 deletions
@@ -33,8 +33,12 @@ #include <sys/stat.h> #include <sys/ioctl.h> #include <sys/mman.h> - +#include <pwd.h> +#include <lauxlib.h> +#include <lualib.h> +#include <lua.h> #include <termkey.h> + #include "vis.h" #include "text-util.h" #include "text-motions.h" @@ -120,11 +124,25 @@ static File *file_new(Vis *vis, const char *filename) { } void vis_window_name(Win *win, const char *filename) { + lua_State *L = win->vis->lua; File *file = win->file; if (filename != file->name) { free((char*)file->name); file->name = filename ? strdup(filename) : NULL; } + + if (filename && L) { + lua_getglobal(L, "lexers"); + lua_getfield(L, -1, "lexer_name"); + lua_pushstring(L, filename); + lua_pcall(L, 1, 1, 0); + if (lua_isstring(L, -1)) { + const char *lexer_name = lua_tostring(L, -1); + if (lexer_name) + view_syntax_set(win->view, lexer_name); + } + lua_pop(L, 2); /* return value: lexer name, lexers variable */ + } } static void windows_invalidate(Vis *vis, size_t start, size_t end) { @@ -169,7 +187,7 @@ static Win *window_new_file(Vis *vis, File *file) { .selection = window_selection_changed, }; win->jumplist = ringbuf_alloc(31); - win->view = view_new(file->text, &win->events); + win->view = view_new(file->text, vis->lua, &win->events); win->ui = vis->ui->window_new(vis->ui, win->view, file); if (!win->jumplist || !win->view || !win->ui) { window_free(win); @@ -287,6 +305,64 @@ Vis *vis_new(Ui *ui) { Vis *vis = calloc(1, sizeof(Vis)); if (!vis) return NULL; + lua_State *L = lua_open(); + if (!(vis->lua = L)) + goto err; + luaL_openlibs(L); + + /* try to get users home directory */ + const char *home = getenv("HOME"); + if (!home || !*home) { + struct passwd *pw = getpwuid(getuid()); + if (pw) + home = pw->pw_dir; + } + + /* extends lua's package.path with: + * - $VIS_PATH/lexers + * - $HOME/.vis/lexers + * - /usr/local/share/vis/lexers + * - /usr/share/vis/lexers + * - package.path (standard lua search path) + */ + int paths = 3; + lua_getglobal(L, "package"); + + const char *vis_path = getenv("VIS_PATH"); + if (vis_path) { + lua_pushstring(L, vis_path); + lua_pushstring(L, "/lexers/?.lua;"); + lua_concat(L, 2); + paths++; + } + + if (home && *home) { + lua_pushstring(L, home); + lua_pushstring(L, "/.vis/lexers/?.lua;"); + lua_concat(L, 2); + paths++; + } + + lua_pushstring(L, "/usr/local/share/vis/lexers/?.lua;"); + lua_pushstring(L, "/usr/share/vis/lexers/?.lua;"); + lua_getfield(L, -paths, "path"); + lua_concat(L, paths); + lua_setfield(L, -2, "path"); + lua_pop(L, 1); /* package */ + + /* try to load the lexer module */ + lua_getglobal(L, "require"); + lua_pushstring(L, "lexer"); + if (lua_pcall(L, 1, 1, 0)) { + lua_close(L); + vis->lua = L = NULL; + } else { + lua_setglobal(L, "lexers"); + lua_getglobal(L, "require"); + lua_pushstring(L, "themes/default"); + lua_pcall(L, 1, 0, 0); + } + vis->ui = ui; vis->ui->init(vis->ui, vis); vis->tabwidth = 8; @@ -302,7 +378,7 @@ Vis *vis_new(Ui *ui) { goto err; if (!(vis->prompt->file->text = text_load(NULL))) goto err; - if (!(vis->prompt->view = view_new(vis->prompt->file->text, NULL))) + if (!(vis->prompt->view = view_new(vis->prompt->file->text, NULL, NULL))) goto err; if (!(vis->prompt->ui = vis->ui->prompt_new(vis->ui, vis->prompt->view, vis->prompt->file))) goto err; @@ -318,6 +394,8 @@ err: void vis_free(Vis *vis) { if (!vis) return; + if (vis->lua) + lua_close(vis->lua); while (vis->windows) vis_window_close(vis->windows); file_free(vis, vis->prompt->file); |