diff options
Diffstat (limited to 'tags.c')
| -rw-r--r-- | tags.c | 104 |
1 files changed, 94 insertions, 10 deletions
@@ -1,15 +1,16 @@ -static char const *tags_filename(Ted *ted) { +static char const *tags_filename(Ted *ted, bool error_if_does_not_exist) { change_directory(ted->cwd); char const *filename = "tags"; - strbuf_printf(ted->tags_dir, "."); + ted_path_full(ted, ".", ted->tags_dir, sizeof ted->tags_dir); if (!fs_file_exists(filename)) { filename = "../tags"; - strbuf_printf(ted->tags_dir, ".."); + ted_path_full(ted, "..", ted->tags_dir, sizeof ted->tags_dir); if (!fs_file_exists(filename)) { filename = "../../tags"; - strbuf_printf(ted->tags_dir, "../.."); + ted_path_full(ted, "../..", ted->tags_dir, sizeof ted->tags_dir); if (!fs_file_exists(filename)) { - ted_seterr(ted, "No tags file. Try running ctags."); + if (error_if_does_not_exist) + ted_seterr(ted, "No tags file. Try running ctags."); filename = NULL; } } @@ -17,6 +18,89 @@ static char const *tags_filename(Ted *ted) { return filename; } +// is this a file we can generate tags for? +static bool is_source_file(char const *filename) { + char const *dot = strchr(filename, '.'); + char const *const extensions[] = { + "py", "c", "h", "cpp", "hpp", "cc", "hh", "cxx", "hxx", "C", "H", + "rb", "lua", "s", "asm", "js", "pl", "cs", "sh", "java", "php" + }; + if (!dot) return false; + for (size_t i = 0; i < arr_count(extensions); ++i) { + if (streq(dot + 1, extensions[i])) { + return true; + } + } + return false; +} + + +static void tags_generate_at_dir(Ted *ted, const char *dir, int depth) { + Settings const *settings = &ted->settings; + if (depth >= settings->tags_max_depth) { + return; + } + FsDirectoryEntry **entries = fs_list_directory(dir); + if (entries) { + char command[2048]; // 2048 is the limit on Windows XP, apparently + + #if __unix__ + // ctags.emacs's sorting depends on the locale + // (ctags-universal doesn't) + char const *cmd_prefix = "LC_ALL=C ctags --append"; + #else + char const *cmd_prefix = "ctags --append"; + #endif + bool any_files = false; + strcpy(command, cmd_prefix); + for (int i = 0; entries[i]; ++i) { + FsDirectoryEntry *entry = entries[i]; + char path[TED_PATH_MAX]; + path_full(dir, entry->name, path, sizeof path); + if (entry->name[0] != '.') { // ignore hidden directories and . and .. + switch (entry->type) { + case FS_FILE: { + if (is_source_file(entry->name)) { + size_t cmdlen = strlen(command), pathlen = strlen(path); + any_files = true; + // make sure command doesn't get too long + if (cmdlen + pathlen + 5 >= sizeof command) { + build_queue_command(ted, command); + strbuf_printf(command, "%s %s", cmd_prefix, path); + } else { + command[cmdlen++] = ' '; + memcpy(command + cmdlen, path, pathlen+1); + } + } + } break; + case FS_DIRECTORY: + tags_generate_at_dir(ted, path, depth+1); + break; + default: break; + } + } + } + if (any_files) { + build_queue_command(ted, command); + } + } +} + +// generate/re-generate tags. +static void tags_generate(Ted *ted) { + char const *filename = tags_filename(ted, false); + if (!filename) { + strcpy(ted->tags_dir, ted->cwd); + } + change_directory(ted->tags_dir); + strcpy(ted->build_dir, ted->tags_dir); + remove("tags"); // delete old tags file + build_queue_start(ted); + tags_generate_at_dir(ted, ted->tags_dir, 0); + build_queue_finish(ted); + change_directory(ted->cwd); +} + static int tag_try(FILE *fp, char const *tag) { if (ftell(fp) != 0) { while (1) { @@ -46,7 +130,7 @@ static int tag_try(FILE *fp, char const *tag) { // each element in out should be freed when you're done with them size_t tags_beginning_with(Ted *ted, char const *prefix, char **out, size_t out_size) { assert(out_size); - char const *tags_name = tags_filename(ted); + char const *tags_name = tags_filename(ted, true); if (!tags_name) return 0; FILE *file = fopen(tags_name, "rb"); if (!file) return 0; @@ -106,7 +190,7 @@ size_t tags_beginning_with(Ted *ted, char const *prefix, char **out, size_t out_ // returns true if the tag exists. bool tag_goto(Ted *ted, char const *tag) { - char const *tags_name = tags_filename(ted); + char const *tags_name = tags_filename(ted, true); if (!tags_name) return false; FILE *file = fopen(tags_name, "rb"); if (!file) return false; @@ -171,8 +255,8 @@ bool tag_goto(Ted *ted, char const *tag) { } assert(streq(name, tag)); char path[TED_PATH_MAX], full_path[TED_PATH_MAX]; - strbuf_printf(path, "%s/%s", ted->tags_dir, filename); - ted_full_path(ted, path, full_path, sizeof full_path); + path_full(ted->tags_dir, filename, path, sizeof path); + ted_path_full(ted, path, full_path, sizeof full_path); if (ted_open_file(ted, full_path)) { TextBuffer *buffer = ted->active_buffer; int line_number = atoi(address); @@ -243,7 +327,7 @@ bool tag_goto(Ted *ted, char const *tag) { static void tag_selector_open(Ted *ted) { // read tags file and extract tag names - char const *filename = tags_filename(ted); + char const *filename = tags_filename(ted, true); if (!filename) return; FILE *file = fopen(filename, "rb"); if (!file) return; |