int simple_stable::remove(const dtype & key, const istr & column) { int r; dtype::ctype type; const column_info * c = get_column(column); /* does it even exist to begin with? */ if(!c || !ct_data->find(key, column).exists()) return 0; type = c->type; r = adjust_column(column, -1, type); if(r < 0) return r; r = ct_data->remove(key, column); if(r < 0) adjust_column(column, 1, type); return r; }
int simple_stable::insert(const dtype & key, const istr & column, const dtype & value, bool append) { int r; bool increment = !ct_data->find(key, column).exists(); if(increment) { /* this will check that the type matches */ r = adjust_column(column, 1, value.type); if(r < 0) return r; } else if(column_type(column) != value.type) return -EINVAL; r = ct_data->insert(key, column, value.flatten(), append); if(r < 0 && increment) adjust_column(column, -1, value.type); return r; }
int simple_stable::remove(const dtype & key) { int r; ctable::iter * columns = ct_data->iterator(key); if(!columns) return 0; while(columns->valid()) { const column_info * c = get_column(columns->name()); r = adjust_column(columns->name(), -1, c->type); /* XXX: improve this */ assert(r >= 0); columns->next(); } delete columns; r = ct_data->remove(key); /* XXX: improve this */ assert(r >= 0); return r; }
extern int fold_main(int argc, char **argv) { /* If nonzero, try to break on whitespace. */ int break_spaces; /* If nonzero, at least one of the files we read was standard input. */ int have_read_stdin; int width = 80; int i; int optc; int errs = 0; break_spaces = count_bytes = have_read_stdin = 0; /* Turn any numeric options into -w options. */ for (i = 1; i < argc; i++) { char const *a = argv[i]; if (a[0] == '-') { if (a[1] == '-' && !a[2]) break; if (isdigit(a[1])) { char *s = xmalloc(strlen(a) + 2); s[0] = '-'; s[1] = 'w'; strcpy(s + 2, a + 1); argv[i] = s; } } } while ((optc = getopt(argc, argv, "bsw:")) > 0) { switch (optc) { case 'b': /* Count bytes rather than columns. */ count_bytes = 1; break; case 's': /* Break at word boundaries. */ break_spaces = 1; break; case 'w': { /* Line width. */ width = bb_xgetlarg(optarg, 10, 1, 10000); break; } default: bb_show_usage(); } } argv += optind; if (!*argv) { *--argv = "-"; } do { FILE *istream = bb_wfopen_input(*argv); if (istream != NULL) { int c; int column = 0; /* Screen column where next char will go. */ int offset_out = 0; /* Index in `line_out' for next char. */ static char *line_out = NULL; static int allocated_out = 0; while ((c = getc(istream)) != EOF) { if (offset_out + 1 >= allocated_out) { allocated_out += 1024; line_out = xrealloc(line_out, allocated_out); } if (c == '\n') { line_out[offset_out++] = c; fwrite(line_out, sizeof(char), (size_t) offset_out, stdout); column = offset_out = 0; continue; } rescan: column = adjust_column(column, c); if (column > width) { /* This character would make the line too long. Print the line plus a newline, and make this character start the next line. */ if (break_spaces) { /* Look for the last blank. */ int logical_end; for (logical_end = offset_out - 1; logical_end >= 0; logical_end--) { if (isblank(line_out[logical_end])) { break; } } if (logical_end >= 0) { /* Found a blank. Don't output the part after it. */ logical_end++; fwrite(line_out, sizeof(char), (size_t) logical_end, stdout); putchar('\n'); /* Move the remainder to the beginning of the next line. The areas being copied here might overlap. */ memmove(line_out, line_out + logical_end, offset_out - logical_end); offset_out -= logical_end; for (column = i = 0; i < offset_out; i++) { column = adjust_column(column, line_out[i]); } goto rescan; } } else { if (offset_out == 0) { line_out[offset_out++] = c; continue; } } line_out[offset_out++] = '\n'; fwrite(line_out, sizeof(char), (size_t) offset_out, stdout); column = offset_out = 0; goto rescan; } line_out[offset_out++] = c; } if (offset_out) { fwrite(line_out, sizeof(char), (size_t) offset_out, stdout); } if (ferror(istream) || bb_fclose_nonstdin(istream)) { bb_perror_msg("%s", *argv); /* Avoid multibyte problems. */ errs |= EXIT_FAILURE; } } else { errs |= EXIT_FAILURE; } } while (*++argv); bb_fflush_stdout_and_exit(errs); }
int fold_main(int argc UNUSED_PARAM, char **argv) { char *line_out = NULL; const char *w_opt = "80"; unsigned width; smallint exitcode = EXIT_SUCCESS; init_unicode(); if (ENABLE_INCLUDE_SUSv2) { /* Turn any numeric options into -w options. */ int i; for (i = 1; argv[i]; i++) { const char *a = argv[i]; if (*a == '-') { a++; if (*a == '-' && !a[1]) /* "--" */ break; if (isdigit(*a)) argv[i] = xasprintf("-w%s", a); } } } getopt32(argv, "bsw:", &w_opt); width = xatou_range(w_opt, 1, 10000); argv += optind; if (!*argv) *--argv = (char*)"-"; do { FILE *istream = fopen_or_warn_stdin(*argv); int c; unsigned column = 0; /* Screen column where next char will go */ unsigned offset_out = 0; /* Index in 'line_out' for next char */ if (istream == NULL) { exitcode = EXIT_FAILURE; continue; } while ((c = getc(istream)) != EOF) { /* We grow line_out in chunks of 0x1000 bytes */ if ((offset_out & 0xfff) == 0) { line_out = xrealloc(line_out, offset_out + 0x1000); } rescan: line_out[offset_out] = c; if (c == '\n') { write2stdout(line_out, offset_out + 1); column = offset_out = 0; continue; } column = adjust_column(column, c); if (column <= width || offset_out == 0) { /* offset_out == 0 case happens * with small width (say, 1) and tabs. * The very first tab already goes to column 8, * but we must not wrap it */ offset_out++; continue; } /* This character would make the line too long. * Print the line plus a newline, and make this character * start the next line */ if (option_mask32 & FLAG_BREAK_SPACES) { unsigned i; unsigned logical_end; /* Look for the last blank. */ for (logical_end = offset_out - 1; (int)logical_end >= 0; logical_end--) { if (!isblank(line_out[logical_end])) continue; /* Found a space or tab. * Output up to and including it, and start a new line */ logical_end++; /*line_out[logical_end] = '\n'; - NO! this nukes one buffered character */ write2stdout(line_out, logical_end); putchar('\n'); /* Move the remainder to the beginning of the next line. * The areas being copied here might overlap. */ memmove(line_out, line_out + logical_end, offset_out - logical_end); offset_out -= logical_end; for (column = i = 0; i < offset_out; i++) { column = adjust_column(column, line_out[i]); } goto rescan; } /* No blank found, wrap will split the overlong word */ } /* Output what we accumulated up to now, and start a new line */ line_out[offset_out] = '\n'; write2stdout(line_out, offset_out + 1); column = offset_out = 0; goto rescan; } /* while (not EOF) */ if (offset_out) { write2stdout(line_out, offset_out); } if (fclose_if_not_stdin(istream)) { bb_simple_perror_msg(*argv); exitcode = EXIT_FAILURE; } } while (*++argv); fflush_stdout_and_exit(exitcode); }
extern int fold_main(int argc, char **argv) { char *w_opt; int width = 80; int i; int errs = 0; #ifdef CONFIG_FEATURE_SUSv2_OBSOLETE /* Turn any numeric options into -w options. */ for (i = 1; i < argc; i++) { char const *a = argv[i]; if (a[0] == '-') { if (a[1] == '-' && !a[2]) break; if (isdigit(a[1])) { char *s = xmalloc(strlen(a) + 2); s[0] = '-'; s[1] = 'w'; strcpy(s + 2, a + 1); argv[i] = s; } } } #endif flags = bb_getopt_ulflags(argc, argv, "bsw:", &w_opt); if (flags & FLAG_WIDTH) width = bb_xgetlarg(w_opt, 10, 1, 10000); argv += optind; if (!*argv) { *--argv = "-"; } do { FILE *istream = bb_wfopen_input(*argv); if (istream != NULL) { int c; int column = 0; /* Screen column where next char will go. */ int offset_out = 0; /* Index in `line_out' for next char. */ static char *line_out = NULL; static int allocated_out = 0; while ((c = getc(istream)) != EOF) { if (offset_out + 1 >= allocated_out) { allocated_out += 1024; line_out = xrealloc(line_out, allocated_out); } if (c == '\n') { line_out[offset_out++] = c; fwrite(line_out, sizeof(char), (size_t) offset_out, stdout); column = offset_out = 0; continue; } rescan: column = adjust_column(column, c); if (column > width) { /* This character would make the line too long. Print the line plus a newline, and make this character start the next line. */ if (flags & FLAG_BREAK_SPACES) { /* Look for the last blank. */ int logical_end; for (logical_end = offset_out - 1; logical_end >= 0; logical_end--) { if (isblank(line_out[logical_end])) { break; } } if (logical_end >= 0) { /* Found a blank. Don't output the part after it. */ logical_end++; fwrite(line_out, sizeof(char), (size_t) logical_end, stdout); putchar('\n'); /* Move the remainder to the beginning of the next line. The areas being copied here might overlap. */ memmove(line_out, line_out + logical_end, offset_out - logical_end); offset_out -= logical_end; for (column = i = 0; i < offset_out; i++) { column = adjust_column(column, line_out[i]); } goto rescan; } } else { if (offset_out == 0) { line_out[offset_out++] = c; continue; } } line_out[offset_out++] = '\n'; fwrite(line_out, sizeof(char), (size_t) offset_out, stdout); column = offset_out = 0; goto rescan; } line_out[offset_out++] = c; } if (offset_out) { fwrite(line_out, sizeof(char), (size_t) offset_out, stdout); } if (ferror(istream) || bb_fclose_nonstdin(istream)) { bb_perror_msg("%s", *argv); /* Avoid multibyte problems. */ errs |= EXIT_FAILURE; } } else { errs |= EXIT_FAILURE; } } while (*++argv); bb_fflush_stdout_and_exit(errs); }