/** * scols_line_remove_child: * @ln: a pointer to a struct libscols_line instance * @child: a pointer to a struct libscols_line instance * * Removes @child as a child of @ln. * * Returns: 0, a negative value in case of an error. */ int scols_line_remove_child(struct libscols_line *ln, struct libscols_line *child) { assert(ln); assert(child); if (!ln || !child) return -EINVAL; list_del_init(&child->ln_children); scols_unref_line(child); child->parent = NULL; scols_unref_line(ln); return 0; }
/** * scols_line_remove_child: * @ln: a pointer to a struct libscols_line instance * @child: a pointer to a struct libscols_line instance * * Removes @child as a child of @ln. * * Returns: 0, a negative value in case of an error. */ int scols_line_remove_child(struct libscols_line *ln, struct libscols_line *child) { if (!ln || !child) return -EINVAL; DBG(LINE, ul_debugobj(ln, "remove child %p", child)); list_del_init(&child->ln_children); child->parent = NULL; scols_unref_line(child); scols_unref_line(ln); return 0; }
int main(int argc, char *argv[]) { struct libscols_table *tb; int c, n, nlines = 0; int parent_col = -1, id_col = -1; static const struct option longopts[] = { { "maxout", 0, NULL, 'm' }, { "column", 1, NULL, 'c' }, { "nlines", 1, NULL, 'n' }, { "width", 1, NULL, 'w' }, { "tree-parent-column", 1, NULL, 'p' }, { "tree-id-column", 1, NULL, 'i' }, { "json", 0, NULL, 'J' }, { "raw", 0, NULL, 'r' }, { "export", 0, NULL, 'E' }, { "colsep", 1, NULL, 'C' }, { "help", 0, NULL, 'h' }, { NULL, 0, NULL, 0 }, }; static const ul_excl_t excl[] = { /* rows and cols in ASCII order */ { 'E', 'J', 'r' }, { 0 } }; int excl_st[ARRAY_SIZE(excl)] = UL_EXCL_STATUS_INIT; setlocale(LC_ALL, ""); /* just to have enable UTF8 chars */ scols_init_debug(0); tb = scols_new_table(); if (!tb) err(EXIT_FAILURE, "failed to create output table"); while((c = getopt_long(argc, argv, "hCc:Ei:Jmn:p:rw:", longopts, NULL)) != -1) { err_exclusive_options(c, longopts, excl, excl_st); switch(c) { case 'c': /* add column from file */ { struct libscols_column *cl; FILE *f = fopen(optarg, "r"); if (!f) err(EXIT_FAILURE, "%s: open failed", optarg); cl = parse_column(f); if (cl && scols_table_add_column(tb, cl)) err(EXIT_FAILURE, "%s: failed to add column", optarg); scols_unref_column(cl); fclose(f); break; } case 'p': parent_col = strtou32_or_err(optarg, "failed to parse tree PARENT column"); break; case 'i': id_col = strtou32_or_err(optarg, "failed to parse tree ID column"); break; case 'J': scols_table_enable_json(tb, 1); scols_table_set_name(tb, "testtable"); break; case 'm': scols_table_enable_maxout(tb, TRUE); break; case 'r': scols_table_enable_raw(tb, TRUE); break; case 'E': scols_table_enable_export(tb, TRUE); break; case 'C': scols_table_set_column_separator(tb, optarg); break; case 'n': nlines = strtou32_or_err(optarg, "failed to parse number of lines"); break; case 'w': scols_table_set_termforce(tb, SCOLS_TERMFORCE_ALWAYS); scols_table_set_termwidth(tb, strtou32_or_err(optarg, "failed to parse terminal width")); break; case 'h': usage(); default: errtryhelp(EXIT_FAILURE); } } if (nlines <= 0) errx(EXIT_FAILURE, "--nlines not set"); for (n = 0; n < nlines; n++) { struct libscols_line *ln = scols_new_line(); if (!ln || scols_table_add_line(tb, ln)) err(EXIT_FAILURE, "failed to add a new line"); scols_unref_line(ln); } n = 0; while (optind < argc) { FILE *f = fopen(argv[optind], "r"); if (!f) err(EXIT_FAILURE, "%s: open failed", argv[optind]); parse_column_data(f, tb, n); optind++; n++; } if (scols_table_is_tree(tb) && parent_col >= 0 && id_col >= 0) compose_tree(tb, parent_col, id_col); scols_table_enable_colors(tb, isatty(STDOUT_FILENO)); scols_print_table(tb); scols_unref_table(tb); return EXIT_SUCCESS; }