/*------------------------------------------------------------------------- * * Query-result printing support for frontend code * * This file used to be part of psql, but now it's separated out to allow * other frontend programs to use it. Because the printing code needs * access to the cancel_pressed flag as well as SIGPIPE trapping and * pager open/close functions, all that stuff came with it. * * * Portions Copyright (c) 1996-2022, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * * src/fe_utils/print.c * *------------------------------------------------------------------------- */ #include "postgres_fe.h" #include #include #include #ifndef WIN32 #include /* for ioctl() */ #endif #ifdef HAVE_TERMIOS_H #include #endif #include "catalog/pg_type_d.h" #include "fe_utils/mbprint.h" #include "fe_utils/print.h" /* * If the calling program doesn't have any mechanism for setting * cancel_pressed, it will have no effect. * * Note: print.c's general strategy for when to check cancel_pressed is to do * so at completion of each row of output. */ volatile sig_atomic_t cancel_pressed = false; static bool always_ignore_sigpipe = false; /* info for locale-aware numeric formatting; set up by setDecimalLocale() */ static char *decimal_point; static int groupdigits; static char *thousands_sep; static char default_footer[100]; static printTableFooter default_footer_cell = {default_footer, NULL}; /* Line style control structures */ const printTextFormat pg_asciiformat = { "ascii", { {"-", "+", "+", "+"}, {"-", "+", "+", "+"}, {"-", "+", "+", "+"}, {"", "|", "|", "|"} }, "|", "|", "|", " ", "+", " ", "+", ".", ".", true }; const printTextFormat pg_asciiformat_old = { "old-ascii", { {"-", "+", "+", "+"}, {"-", "+", "+", "+"}, {"-", "+", "+", "+"}, {"", "|", "|", "|"} }, ":", ";", " ", "+", " ", " ", " ", " ", " ", false }; /* Default unicode linestyle format */ printTextFormat pg_utf8format; typedef struct unicodeStyleRowFormat { const char *horizontal; const char *vertical_and_right[2]; const char *vertical_and_left[2]; } unicodeStyleRowFormat; typedef struct unicodeStyleColumnFormat { const char *vertical; const char *vertical_and_horizontal[2]; const char *up_and_horizontal[2]; const char *down_and_horizontal[2]; } unicodeStyleColumnFormat; typedef struct unicodeStyleBorderFormat { const char *up_and_right; const char *vertical; const char *down_and_right; const char *horizontal; const char *down_and_left; const char *left_and_right; } unicodeStyleBorderFormat; typedef struct unicodeStyleFormat { unicodeStyleRowFormat row_style[2]; unicodeStyleColumnFormat column_style[2]; unicodeStyleBorderFormat border_style[2]; const char *header_nl_left; const char *header_nl_right; const char *nl_left; const char *nl_right; const char *wrap_left; const char *wrap_right; bool wrap_right_border; } unicodeStyleFormat; static const unicodeStyleFormat unicode_style = { { { /* U+2500 Box Drawings Light Horizontal */ "\342\224\200", /*-- * U+251C Box Drawings Light Vertical and Right, * U+255F Box Drawings Vertical Double and Right Single *-- */ {"\342\224\234", "\342\225\237"}, /*-- * U+2524 Box Drawings Light Vertical and Left, * U+2562 Box Drawings Vertical Double and Left Single *-- */ {"\342\224\244", "\342\225\242"}, }, { /* U+2550 Box Drawings Double Horizontal */ "\342\225\220", /*-- * U+255E Box Drawings Vertical Single and Right Double, * U+2560 Box Drawings Double Vertical and Right *-- */ {"\342\225\236", "\342\225\240"}, /*-- * U+2561 Box Drawings Vertical Single and Left Double, * U+2563 Box Drawings Double Vertical and Left *-- */ {"\342\225\241", "\342\225\243"}, }, }, { { /* U+2502 Box Drawings Light Vertical */ "\342\224\202", /*-- * U+253C Box Drawings Light Vertical and Horizontal, * U+256A Box Drawings Vertical Single and Horizontal Double *-- */ {"\342\224\274", "\342\225\252"}, /*-- * U+2534 Box Drawings Light Up and Horizontal, * U+2567 Box Drawings Up Single and Horizontal Double *-- */ {"\342\224\264", "\342\225\247"}, /*-- * U+252C Box Drawings Light Down and Horizontal, * U+2564 Box Drawings Down Single and Horizontal Double *-- */ {"\342\224\254", "\342\225\244"}, }, { /* U+2551 Box Drawings Double Vertical */ "\342\225\221", /*-- * U+256B Box Drawings Vertical Double and Horizontal Single, * U+256C Box Drawings Double Vertical and Horizontal *-- */ {"\342\225\253", "\342\225\254"}, /*-- * U+2568 Box Drawings Up Double and Horizontal Single, * U+2569 Box Drawings Double Up and Horizontal *-- */ {"\342\225\250", "\342\225\251"}, /*-- * U+2565 Box Drawings Down Double and Horizontal Single, * U+2566 Box Drawings Double Down and Horizontal *-- */ {"\342\225\245", "\342\225\246"}, }, }, { /*-- * U+2514 Box Drawings Light Up and Right, * U+2502 Box Drawings Light Vertical, * U+250C Box Drawings Light Down and Right, * U+2500 Box Drawings Light Horizontal, * U+2510 Box Drawings Light Down and Left, * U+2518 Box Drawings Light Up and Left *-- */ {"\342\224\224", "\342\224\202", "\342\224\214", "\342\224\200", "\342\224\220", "\342\224\230"}, /*-- * U+255A Box Drawings Double Up and Right, * U+2551 Box Drawings Double Vertical, * U+2554 Box Drawings Double Down and Right, * U+2550 Box Drawings Double Horizontal, * U+2557 Box Drawings Double Down and Left, * U+255D Box Drawings Double Up and Left *-- */ {"\342\225\232", "\342\225\221", "\342\225\224", "\342\225\220", "\342\225\227", "\342\225\235"}, }, " ", /* U+21B5 Downwards Arrow with Corner Leftwards */ "\342\206\265", " ", /* U+21B5 Downwards Arrow with Corner Leftwards */ "\342\206\265", /* U+2026 Horizontal Ellipsis */ "\342\200\246", "\342\200\246", true }; /* Local functions */ static int strlen_max_width(unsigned char *str, int *target_width, int encoding); static void IsPagerNeeded(const printTableContent *cont, int extra_lines, bool expanded, FILE **fout, bool *is_pager); static void print_aligned_vertical(const printTableContent *cont, FILE *fout, bool is_pager); /* Count number of digits in integral part of number */ static int integer_digits(const char *my_str) { /* ignoring any sign ... */ if (my_str[0] == '-' || my_str[0] == '+') my_str++; /* ... count initial integral digits */ return strspn(my_str, "0123456789"); } /* Compute additional length required for locale-aware numeric output */ static int additional_numeric_locale_len(const char *my_str) { int int_len = integer_digits(my_str), len = 0; /* Account for added thousands_sep instances */ if (int_len > groupdigits) len += ((int_len - 1) / groupdigits) * strlen(thousands_sep); /* Account for possible additional length of decimal_point */ if (strchr(my_str, '.') != NULL) len += strlen(decimal_point) - 1; return len; } /* * Format a numeric value per current LC_NUMERIC locale setting * * Returns the appropriately formatted string in a new allocated block, * caller must free. * * setDecimalLocale() must have been called earlier. */ static char * format_numeric_locale(const char *my_str) { char *new_str; int new_len, int_len, leading_digits, i, new_str_pos; /* * If the string doesn't look like a number, return it unchanged. This * check is essential to avoid mangling already-localized "money" values. */ if (strspn(my_str, "0123456789+-.eE") != strlen(my_str)) return pg_strdup(my_str); new_len = strlen(my_str) + additional_numeric_locale_len(my_str); new_str = pg_malloc(new_len + 1); new_str_pos = 0; int_len = integer_digits(my_str); /* number of digits in first thousands group */ leading_digits = int_len % groupdigits; if (leading_digits == 0) leading_digits = groupdigits; /* process sign */ if (my_str[0] == '-' || my_str[0] == '+') { new_str[new_str_pos++] = my_str[0]; my_str++; } /* process integer part of number */ for (i = 0; i < int_len; i++) { /* Time to insert separator? */ if (i > 0 && --leading_digits == 0) { strcpy(&new_str[new_str_pos], thousands_sep); new_str_pos += strlen(thousands_sep); leading_digits = groupdigits; } new_str[new_str_pos++] = my_str[i]; } /* handle decimal point if any */ if (my_str[i] == '.') { strcpy(&new_str[new_str_pos], decimal_point); new_str_pos += strlen(decimal_point); i++; } /* copy the rest (fractional digits and/or exponent, and \0 terminator) */ strcpy(&new_str[new_str_pos], &my_str[i]); /* assert we didn't underestimate new_len (an overestimate is OK) */ Assert(strlen(new_str) <= new_len); return new_str; } static void print_separator(struct separator sep, FILE *fout) { if (sep.separator_zero) fputc('\000', fout); else if (sep.separator) fputs(sep.separator, fout); } /* * Return the list of explicitly-requested footers or, when applicable, the * default "(xx rows)" footer. Always omit the default footer when given * non-default footers, "\pset footer off", or a specific instruction to that * effect from a calling backslash command. Vertical formats number each row, * making the default footer redundant; they do not call this function. * * The return value may point to static storage; do not keep it across calls. */ static printTableFooter * footers_with_default(const printTableContent *cont) { if (cont->footers == NULL && cont->opt->default_footer) { unsigned long total_records; total_records = cont->opt->prior_records + cont->nrows; snprintf(default_footer, sizeof(default_footer), ngettext("(%lu row)", "(%lu rows)", total_records), total_records); return &default_footer_cell; } else return cont->footers; } /*************************/ /* Unaligned text */ /*************************/ static void print_unaligned_text(const printTableContent *cont, FILE *fout) { bool opt_tuples_only = cont->opt->tuples_only; unsigned int i; const char *const *ptr; bool need_recordsep = false; if (cancel_pressed) return; if (cont->opt->start_table) { /* print title */ if (!opt_tuples_only && cont->title) { fputs(cont->title, fout); print_separator(cont->opt->recordSep, fout); } /* print headers */ if (!opt_tuples_only) { for (ptr = cont->headers; *ptr; ptr++) { if (ptr != cont->headers) print_separator(cont->opt->fieldSep, fout); fputs(*ptr, fout); } need_recordsep = true; } } else /* assume continuing printout */ need_recordsep = true; /* print cells */ for (i = 0, ptr = cont->cells; *ptr; i++, ptr++) { if (need_recordsep) { print_separator(cont->opt->recordSep, fout); need_recordsep = false; if (cancel_pressed) break; } fputs(*ptr, fout); if ((i + 1) % cont->ncolumns) print_separator(cont->opt->fieldSep, fout); else need_recordsep = true; } /* print footers */ if (cont->opt->stop_table) { printTableFooter *footers = footers_with_default(cont); if (!opt_tuples_only && footers != NULL && !cancel_pressed) { printTableFooter *f; for (f = footers; f; f = f->next) { if (need_recordsep) { print_separator(cont->opt->recordSep, fout); need_recordsep = false; } fputs(f->data, fout); need_recordsep = true; } } /* * The last record is terminated by a newline, independent of the set * record separator. But when the record separator is a zero byte, we * use that (compatible with find -print0 and xargs). */ if (need_recordsep) { if (cont->opt->recordSep.separator_zero) print_separator(cont->opt->recordSep, fout); else fputc('\n', fout); } } } static void print_unaligned_vertical(const printTableContent *cont, FILE *fout) { bool opt_tuples_only = cont->opt->tuples_only; unsigned int i; const char *const *ptr; bool need_recordsep = false; if (cancel_pressed) return; if (cont->opt->start_table) { /* print title */ if (!opt_tuples_only && cont->title) { fputs(cont->title, fout); need_recordsep = true; } } else /* assume continuing printout */ need_recordsep = true; /* print records */ for (i = 0, ptr = cont->cells; *ptr; i++, ptr++) { if (need_recordsep) { /* record separator is 2 occurrences of recordsep in this mode */ print_separator(cont->opt->recordSep, fout); print_separator(cont->opt->recordSep, fout); need_recordsep = false; if (cancel_pressed) break; } fputs(cont->headers[i % cont->ncolumns], fout); print_separator(cont->opt->fieldSep, fout); fputs(*ptr, fout); if ((i + 1) % cont->ncolumns) print_separator(cont->opt->recordSep, fout); else need_recordsep = true; } if (cont->opt->stop_table) { /* print footers */ if (!opt_tuples_only && cont->footers != NULL && !cancel_pressed) { printTableFooter *f; print_separator(cont->opt->recordSep, fout); for (f = cont->footers; f; f = f->next) { print_separator(cont->opt->recordSep, fout); fputs(f->data, fout); } } /* see above in print_unaligned_text() */ if (need_recordsep) { if (cont->opt->recordSep.separator_zero) print_separator(cont->opt->recordSep, fout); else fputc('\n', fout); } } } /********************/ /* Aligned text */ /********************/ /* draw "line" */ static void _print_horizontal_line(const unsigned int ncolumns, const unsigned int *widths, unsigned short border, printTextRule pos, const printTextFormat *format, FILE *fout) { const printTextLineFormat *lformat = &format->lrule[pos]; unsigned int i, j; if (border == 1) fputs(lformat->hrule, fout); else if (border == 2) fprintf(fout, "%s%s", lformat->leftvrule, lformat->hrule); for (i = 0; i < ncolumns; i++) { for (j = 0; j < widths[i]; j++) fputs(lformat->hrule, fout); if (i < ncolumns - 1) { if (border == 0) fputc(' ', fout); else fprintf(fout, "%s%s%s", lformat->hrule, lformat->midvrule, lformat->hrule); } } if (border == 2) fprintf(fout, "%s%s", lformat->hrule, lformat->rightvrule); else if (border == 1) fputs(lformat->hrule, fout); fputc('\n', fout); } /* * Print pretty boxes around cells. */ static void print_aligned_text(const printTableContent *cont, FILE *fout, bool is_pager) { bool opt_tuples_only = cont->opt->tuples_only; int encoding = cont->opt->encoding; unsigned short opt_border = cont->opt->border; const printTextFormat *format = get_line_style(cont->opt); const printTextLineFormat *dformat = &format->lrule[PRINT_RULE_DATA]; unsigned int col_count = 0, cell_count = 0; unsigned int i, j; unsigned int *width_header, *max_width, *width_wrap, *width_average; unsigned int *max_nl_lines, /* value split by newlines */ *curr_nl_line, *max_bytes; unsigned char **format_buf; unsigned int width_total; unsigned int total_header_width; unsigned int extra_row_output_lines = 0; unsigned int extra_output_lines = 0; const char *const *ptr; struct lineptr **col_lineptrs; /* pointers to line pointer per column */ bool *header_done; /* Have all header lines been output? */ int *bytes_output; /* Bytes output for column value */ printTextLineWrap *wrap; /* Wrap status for each column */ int output_columns = 0; /* Width of interactive console */ bool is_local_pager = false; if (cancel_pressed) return; if (opt_border > 2) opt_border = 2; if (cont->ncolumns > 0) { col_count = cont->ncolumns; width_header = pg_malloc0(col_count * sizeof(*width_header)); width_average = pg_malloc0(col_count * sizeof(*width_average)); max_width = pg_malloc0(col_count * sizeof(*max_width)); width_wrap = pg_malloc0(col_count * sizeof(*width_wrap)); max_nl_lines = pg_malloc0(col_count * sizeof(*max_nl_lines)); curr_nl_line = pg_malloc0(col_count * sizeof(*curr_nl_line)); col_lineptrs = pg_malloc0(col_count * sizeof(*col_lineptrs)); max_bytes = pg_malloc0(col_count * sizeof(*max_bytes)); format_buf = pg_malloc0(col_count * sizeof(*format_buf)); header_done = pg_malloc0(col_count * sizeof(*header_done)); bytes_output = pg_malloc0(col_count * sizeof(*bytes_output)); wrap = pg_malloc0(col_count * sizeof(*wrap)); } else { width_header = NULL; width_average = NULL; max_width = NULL; width_wrap = NULL; max_nl_lines = NULL; curr_nl_line = NULL; col_lineptrs = NULL; max_bytes = NULL; format_buf = NULL; header_done = NULL; bytes_output = NULL; wrap = NULL; } /* scan all column headers, find maximum width and max max_nl_lines */ for (i = 0; i < col_count; i++) { int width, nl_lines, bytes_required; pg_wcssize((const unsigned char *) cont->headers[i], strlen(cont->headers[i]), encoding, &width, &nl_lines, &bytes_required); if (width > max_width[i]) max_width[i] = width; if (nl_lines > max_nl_lines[i]) max_nl_lines[i] = nl_lines; if (bytes_required > max_bytes[i]) max_bytes[i] = bytes_required; if (nl_lines > extra_row_output_lines) extra_row_output_lines = nl_lines; width_header[i] = width; } /* Add height of tallest header column */ extra_output_lines += extra_row_output_lines; extra_row_output_lines = 0; /* scan all cells, find maximum width, compute cell_count */ for (i = 0, ptr = cont->cells; *ptr; ptr++, i++, cell_count++) { int width, nl_lines, bytes_required; pg_wcssize((const unsigned char *) *ptr, strlen(*ptr), encoding, &width, &nl_lines, &bytes_required); if (width > max_width[i % col_count]) max_width[i % col_count] = width; if (nl_lines > max_nl_lines[i % col_count]) max_nl_lines[i % col_count] = nl_lines; if (bytes_required > max_bytes[i % col_count]) max_bytes[i % col_count] = bytes_required; width_average[i % col_count] += width; } /* If we have rows, compute average */ if (col_count != 0 && cell_count != 0) { int rows = cell_count / col_count; for (i = 0; i < col_count; i++) width_average[i] /= rows; } /* adjust the total display width based on border style */ if (opt_border == 0) width_total = col_count; else if (opt_border == 1) width_total = col_count * 3 - ((col_count > 0) ? 1 : 0); else width_total = col_count * 3 + 1; total_header_width = width_total; for (i = 0; i < col_count; i++) { width_total += max_width[i]; total_header_width += width_header[i]; } /* * At this point: max_width[] contains the max width of each column, * max_nl_lines[] contains the max number of lines in each column, * max_bytes[] contains the maximum storage space for formatting strings, * width_total contains the giant width sum. Now we allocate some memory * for line pointers. */ for (i = 0; i < col_count; i++) { /* Add entry for ptr == NULL array termination */ col_lineptrs[i] = pg_malloc0((max_nl_lines[i] + 1) * sizeof(**col_lineptrs)); format_buf[i] = pg_malloc(max_bytes[i] + 1); col_lineptrs[i]->ptr = format_buf[i]; } /* Default word wrap to the full width, i.e. no word wrap */ for (i = 0; i < col_count; i++) width_wrap[i] = max_width[i]; /* * Choose target output width: \pset columns, or $COLUMNS, or ioctl */ if (cont->opt->columns > 0) output_columns = cont->opt->columns; else if ((fout == stdout && isatty(fileno(stdout))) || is_pager) { if (cont->opt->env_columns > 0) output_columns = cont->opt->env_columns; #ifdef TIOCGWINSZ else { struct winsize screen_size; if (ioctl(fileno(stdout), TIOCGWINSZ, &screen_size) != -1) output_columns = screen_size.ws_col; } #endif } if (cont->opt->format == PRINT_WRAPPED) { /* * Optional optimized word wrap. Shrink columns with a high max/avg * ratio. Slightly bias against wider columns. (Increases chance a * narrow column will fit in its cell.) If available columns is * positive... and greater than the width of the unshrinkable column * headers */ if (output_columns > 0 && output_columns >= total_header_width) { /* While there is still excess width... */ while (width_total > output_columns) { double max_ratio = 0; int worst_col = -1; /* * Find column that has the highest ratio of its maximum width * compared to its average width. This tells us which column * will produce the fewest wrapped values if shortened. * width_wrap starts as equal to max_width. */ for (i = 0; i < col_count; i++) { if (width_average[i] && width_wrap[i] > width_header[i]) { /* Penalize wide columns by 1% of their width */ double ratio; ratio = (double) width_wrap[i] / width_average[i] + max_width[i] * 0.01; if (ratio > max_ratio) { max_ratio = ratio; worst_col = i; } } } /* Exit loop if we can't squeeze any more. */ if (worst_col == -1) break; /* Decrease width of target column by one. */ width_wrap[worst_col]--; width_total--; } } } /* * If in expanded auto mode, we have now calculated the expected width, so * we can now escape to vertical mode if necessary. If the output has * only one column, the expanded format would be wider than the regular * format, so don't use it in that case. */ if (cont->opt->expanded == 2 && output_columns > 0 && cont->ncolumns > 1 && (output_columns < total_header_width || output_columns < width_total)) { print_aligned_vertical(cont, fout, is_pager); goto cleanup; } /* If we wrapped beyond the display width, use the pager */ if (!is_pager && fout == stdout && output_columns > 0 && (output_columns < total_header_width || output_columns < width_total)) { fout = PageOutput(INT_MAX, cont->opt); /* force pager */ is_pager = is_local_pager = true; } /* Check if newlines or our wrapping now need the pager */ if (!is_pager && fout == stdout) { /* scan all cells, find maximum width, compute cell_count */ for (i = 0, ptr = cont->cells; *ptr; ptr++, cell_count++) { int width, nl_lines, bytes_required; pg_wcssize((const unsigned char *) *ptr, strlen(*ptr), encoding, &width, &nl_lines, &bytes_required); /* * A row can have both wrapping and newlines that cause it to * display across multiple lines. We check for both cases below. */ if (width > 0 && width_wrap[i]) { unsigned int extra_lines; /* don't count the first line of nl_lines - it's not "extra" */ extra_lines = ((width - 1) / width_wrap[i]) + nl_lines - 1; if (extra_lines > extra_row_output_lines) extra_row_output_lines = extra_lines; } /* i is the current column number: increment with wrap */ if (++i >= col_count) { i = 0; /* At last column of each row, add tallest column height */ extra_output_lines += extra_row_output_lines; extra_row_output_lines = 0; } } IsPagerNeeded(cont, extra_output_lines, false, &fout, &is_pager); is_local_pager = is_pager; } /* time to output */ if (cont->opt->start_table) { /* print title */ if (cont->title && !opt_tuples_only) { int width, height; pg_wcssize((const unsigned char *) cont->title, strlen(cont->title), encoding, &width, &height, NULL); if (width >= width_total) /* Aligned */ fprintf(fout, "%s\n", cont->title); else /* Centered */ fprintf(fout, "%-*s%s\n", (width_total - width) / 2, "", cont->title); } /* print headers */ if (!opt_tuples_only) { int more_col_wrapping; int curr_nl_line; if (opt_border == 2) _print_horizontal_line(col_count, width_wrap, opt_border, PRINT_RULE_TOP, format, fout); for (i = 0; i < col_count; i++) pg_wcsformat((const unsigned char *) cont->headers[i], strlen(cont->headers[i]), encoding, col_lineptrs[i], max_nl_lines[i]); more_col_wrapping = col_count; curr_nl_line = 0; if (col_count > 0) memset(header_done, false, col_count * sizeof(bool)); while (more_col_wrapping) { if (opt_border == 2) fputs(dformat->leftvrule, fout); for (i = 0; i < cont->ncolumns; i++) { struct lineptr *this_line = col_lineptrs[i] + curr_nl_line; unsigned int nbspace; if (opt_border != 0 || (!format->wrap_right_border && i > 0)) fputs(curr_nl_line ? format->header_nl_left : " ", fout); if (!header_done[i]) { nbspace = width_wrap[i] - this_line->width; /* centered */ fprintf(fout, "%-*s%s%-*s", nbspace / 2, "", this_line->ptr, (nbspace + 1) / 2, ""); if (!(this_line + 1)->ptr) { more_col_wrapping--; header_done[i] = 1; } } else fprintf(fout, "%*s", width_wrap[i], ""); if (opt_border != 0 || format->wrap_right_border) fputs(!header_done[i] ? format->header_nl_right : " ", fout); if (opt_border != 0 && col_count > 0 && i < col_count - 1) fputs(dformat->midvrule, fout); } curr_nl_line++; if (opt_border == 2) fputs(dformat->rightvrule, fout); fputc('\n', fout); } _print_horizontal_line(col_count, width_wrap, opt_border, PRINT_RULE_MIDDLE, format, fout); } } /* print cells, one loop per row */ for (i = 0, ptr = cont->cells; *ptr; i += col_count, ptr += col_count) { bool more_lines; if (cancel_pressed) break; /* * Format each cell. */ for (j = 0; j < col_count; j++) { pg_wcsformat((const unsigned char *) ptr[j], strlen(ptr[j]), encoding, col_lineptrs[j], max_nl_lines[j]); curr_nl_line[j] = 0; } memset(bytes_output, 0, col_count * sizeof(int)); /* * Each time through this loop, one display line is output. It can * either be a full value or a partial value if embedded newlines * exist or if 'format=wrapping' mode is enabled. */ do { more_lines = false; /* left border */ if (opt_border == 2) fputs(dformat->leftvrule, fout); /* for each column */ for (j = 0; j < col_count; j++) { /* We have a valid array element, so index it */ struct lineptr *this_line = &col_lineptrs[j][curr_nl_line[j]]; int bytes_to_output; int chars_to_output = width_wrap[j]; bool finalspaces = (opt_border == 2 || (col_count > 0 && j < col_count - 1)); /* Print left-hand wrap or newline mark */ if (opt_border != 0) { if (wrap[j] == PRINT_LINE_WRAP_WRAP) fputs(format->wrap_left, fout); else if (wrap[j] == PRINT_LINE_WRAP_NEWLINE) fputs(format->nl_left, fout); else fputc(' ', fout); } if (!this_line->ptr) { /* Past newline lines so just pad for other columns */ if (finalspaces) fprintf(fout, "%*s", chars_to_output, ""); } else { /* Get strlen() of the characters up to width_wrap */ bytes_to_output = strlen_max_width(this_line->ptr + bytes_output[j], &chars_to_output, encoding); /* * If we exceeded width_wrap, it means the display width * of a single character was wider than our target width. * In that case, we have to pretend we are only printing * the target display width and make the best of it. */ if (chars_to_output > width_wrap[j]) chars_to_output = width_wrap[j]; if (cont->aligns[j] == 'r') /* Right aligned cell */ { /* spaces first */ fprintf(fout, "%*s", width_wrap[j] - chars_to_output, ""); fwrite((char *) (this_line->ptr + bytes_output[j]), 1, bytes_to_output, fout); } else /* Left aligned cell */ { /* spaces second */ fwrite((char *) (this_line->ptr + bytes_output[j]), 1, bytes_to_output, fout); } bytes_output[j] += bytes_to_output; /* Do we have more text to wrap? */ if (*(this_line->ptr + bytes_output[j]) != '\0') more_lines = true; else { /* Advance to next newline line */ curr_nl_line[j]++; if (col_lineptrs[j][curr_nl_line[j]].ptr != NULL) more_lines = true; bytes_output[j] = 0; } } /* Determine next line's wrap status for this column */ wrap[j] = PRINT_LINE_WRAP_NONE; if (col_lineptrs[j][curr_nl_line[j]].ptr != NULL) { if (bytes_output[j] != 0) wrap[j] = PRINT_LINE_WRAP_WRAP; else if (curr_nl_line[j] != 0) wrap[j] = PRINT_LINE_WRAP_NEWLINE; } /* * If left-aligned, pad out remaining space if needed (not * last column, and/or wrap marks required). */ if (cont->aligns[j] != 'r') /* Left aligned cell */ { if (finalspaces || wrap[j] == PRINT_LINE_WRAP_WRAP || wrap[j] == PRINT_LINE_WRAP_NEWLINE) fprintf(fout, "%*s", width_wrap[j] - chars_to_output, ""); } /* Print right-hand wrap or newline mark */ if (wrap[j] == PRINT_LINE_WRAP_WRAP) fputs(format->wrap_right, fout); else if (wrap[j] == PRINT_LINE_WRAP_NEWLINE) fputs(format->nl_right, fout); else if (opt_border == 2 || (col_count > 0 && j < col_count - 1)) fputc(' ', fout); /* Print column divider, if not the last column */ if (opt_border != 0 && (col_count > 0 && j < col_count - 1)) { if (wrap[j + 1] == PRINT_LINE_WRAP_WRAP) fputs(format->midvrule_wrap, fout); else if (wrap[j + 1] == PRINT_LINE_WRAP_NEWLINE) fputs(format->midvrule_nl, fout); else if (col_lineptrs[j + 1][curr_nl_line[j + 1]].ptr == NULL) fputs(format->midvrule_blank, fout); else fputs(dformat->midvrule, fout); } } /* end-of-row border */ if (opt_border == 2) fputs(dformat->rightvrule, fout); fputc('\n', fout); } while (more_lines); } if (cont->opt->stop_table) { printTableFooter *footers = footers_with_default(cont); if (opt_border == 2 && !cancel_pressed) _print_horizontal_line(col_count, width_wrap, opt_border, PRINT_RULE_BOTTOM, format, fout); /* print footers */ if (footers && !opt_tuples_only && !cancel_pressed) { printTableFooter *f; for (f = footers; f; f = f->next) fprintf(fout, "%s\n", f->data); } fputc('\n', fout); } cleanup: /* clean up */ for (i = 0; i < col_count; i++) { free(col_lineptrs[i]); free(format_buf[i]); } free(width_header); free(width_average); free(max_width); free(width_wrap); free(max_nl_lines); free(curr_nl_line); free(col_lineptrs); free(max_bytes); free(format_buf); free(header_done); free(bytes_output); free(wrap); if (is_local_pager) ClosePager(fout); } static void print_aligned_vertical_line(const printTextFormat *format, const unsigned short opt_border, unsigned long record, unsigned int hwidth, unsigned int dwidth, printTextRule pos, FILE *fout) { const printTextLineFormat *lformat = &format->lrule[pos]; unsigned int i; int reclen = 0; if (opt_border == 2) fprintf(fout, "%s%s", lformat->leftvrule, lformat->hrule); else if (opt_border == 1) fputs(lformat->hrule, fout); if (record) { if (opt_border == 0) reclen = fprintf(fout, "* Record %lu", record); else reclen = fprintf(fout, "[ RECORD %lu ]", record); } if (opt_border != 2) reclen++; if (reclen < 0) reclen = 0; for (i = reclen; i < hwidth; i++) fputs(opt_border > 0 ? lformat->hrule : " ", fout); reclen -= hwidth; if (opt_border > 0) { if (reclen-- <= 0) fputs(lformat->hrule, fout); if (reclen-- <= 0) fputs(lformat->midvrule, fout); if (reclen-- <= 0) fputs(lformat->hrule, fout); } else { if (reclen-- <= 0) fputc(' ', fout); } if (reclen < 0) reclen = 0; for (i = reclen; i < dwidth; i++) fputs(opt_border > 0 ? lformat->hrule : " ", fout); if (opt_border == 2) fprintf(fout, "%s%s", lformat->hrule, lformat->rightvrule); fputc('\n', fout); } static void print_aligned_vertical(const printTableContent *cont, FILE *fout, bool is_pager) { bool opt_tuples_only = cont->opt->tuples_only; unsigned short opt_border = cont->opt->border; const printTextFormat *format = get_line_style(cont->opt); const printTextLineFormat *dformat = &format->lrule[PRINT_RULE_DATA]; int encoding = cont->opt->encoding; unsigned long record = cont->opt->prior_records + 1; const char *const *ptr; unsigned int i, hwidth = 0, dwidth = 0, hheight = 1, dheight = 1, hformatsize = 0, dformatsize = 0; struct lineptr *hlineptr, *dlineptr; bool is_local_pager = false, hmultiline = false, dmultiline = false; int output_columns = 0; /* Width of interactive console */ if (cancel_pressed) return; if (opt_border > 2) opt_border = 2; if (cont->cells[0] == NULL && cont->opt->start_table && cont->opt->stop_table) { printTableFooter *footers = footers_with_default(cont); if (!opt_tuples_only && !cancel_pressed && footers) { printTableFooter *f; for (f = footers; f; f = f->next) fprintf(fout, "%s\n", f->data); } fputc('\n', fout); return; } /* * Deal with the pager here instead of in printTable(), because we could * get here via print_aligned_text() in expanded auto mode, and so we have * to recalculate the pager requirement based on vertical output. */ if (!is_pager) { IsPagerNeeded(cont, 0, true, &fout, &is_pager); is_local_pager = is_pager; } /* Find the maximum dimensions for the headers */ for (i = 0; i < cont->ncolumns; i++) { int width, height, fs; pg_wcssize((const unsigned char *) cont->headers[i], strlen(cont->headers[i]), encoding, &width, &height, &fs); if (width > hwidth) hwidth = width; if (height > hheight) { hheight = height; hmultiline = true; } if (fs > hformatsize) hformatsize = fs; } /* find longest data cell */ for (i = 0, ptr = cont->cells; *ptr; ptr++, i++) { int width, height, fs; pg_wcssize((const unsigned char *) *ptr, strlen(*ptr), encoding, &width, &height, &fs); if (width > dwidth) dwidth = width; if (height > dheight) { dheight = height; dmultiline = true; } if (fs > dformatsize) dformatsize = fs; } /* * We now have all the information we need to setup the formatting * structures */ dlineptr = pg_malloc((sizeof(*dlineptr)) * (dheight + 1)); hlineptr = pg_malloc((sizeof(*hlineptr)) * (hheight + 1)); dlineptr->ptr = pg_malloc(dformatsize); hlineptr->ptr = pg_malloc(hformatsize); if (cont->opt->start_table) { /* print title */ if (!opt_tuples_only && cont->title) fprintf(fout, "%s\n", cont->title); } /* * Choose target output width: \pset columns, or $COLUMNS, or ioctl */ if (cont->opt->columns > 0) output_columns = cont->opt->columns; else if ((fout == stdout && isatty(fileno(stdout))) || is_pager) { if (cont->opt->env_columns > 0) output_columns = cont->opt->env_columns; #ifdef TIOCGWINSZ else { struct winsize screen_size; if (ioctl(fileno(stdout), TIOCGWINSZ, &screen_size) != -1) output_columns = screen_size.ws_col; } #endif } /* * Calculate available width for data in wrapped mode */ if (cont->opt->format == PRINT_WRAPPED) { unsigned int swidth, rwidth = 0, newdwidth; if (opt_border == 0) { /* * For border = 0, one space in the middle. (If we discover we * need to wrap, the spacer column will be replaced by a wrap * marker, and we'll make room below for another wrap marker at * the end of the line. But for now, assume no wrap is needed.) */ swidth = 1; /* We might need a column for header newline markers, too */ if (hmultiline) swidth++; } else if (opt_border == 1) { /* * For border = 1, two spaces and a vrule in the middle. (As * above, we might need one more column for a wrap marker.) */ swidth = 3; /* We might need a column for left header newline markers, too */ if (hmultiline && (format == &pg_asciiformat_old)) swidth++; } else { /* * For border = 2, two more for the vrules at the beginning and * end of the lines, plus spacer columns adjacent to these. (We * won't need extra columns for wrap/newline markers, we'll just * repurpose the spacers.) */ swidth = 7; } /* Reserve a column for data newline indicators, too, if needed */ if (dmultiline && opt_border < 2 && format != &pg_asciiformat_old) swidth++; /* Determine width required for record header lines */ if (!opt_tuples_only) { if (cont->nrows > 0) rwidth = 1 + (int) log10(cont->nrows); if (opt_border == 0) rwidth += 9; /* "* RECORD " */ else if (opt_border == 1) rwidth += 12; /* "-[ RECORD ]" */ else rwidth += 15; /* "+-[ RECORD ]-+" */ } /* We might need to do the rest of the calculation twice */ for (;;) { unsigned int width; /* Total width required to not wrap data */ width = hwidth + swidth + dwidth; /* ... and not the header lines, either */ if (width < rwidth) width = rwidth; if (output_columns > 0) { unsigned int min_width; /* Minimum acceptable width: room for just 3 columns of data */ min_width = hwidth + swidth + 3; /* ... but not less than what the record header lines need */ if (min_width < rwidth) min_width = rwidth; if (output_columns >= width) { /* Plenty of room, use native data width */ /* (but at least enough for the record header lines) */ newdwidth = width - hwidth - swidth; } else if (output_columns < min_width) { /* Set data width to match min_width */ newdwidth = min_width - hwidth - swidth; } else { /* Set data width to match output_columns */ newdwidth = output_columns - hwidth - swidth; } } else { /* Don't know the wrap limit, so use native data width */ /* (but at least enough for the record header lines) */ newdwidth = width - hwidth - swidth; } /* * If we will need to wrap data and didn't already allocate a data * newline/wrap marker column, do so and recompute. */ if (newdwidth < dwidth && !dmultiline && opt_border < 2 && format != &pg_asciiformat_old) { dmultiline = true; swidth++; } else break; } dwidth = newdwidth; } /* print records */ for (i = 0, ptr = cont->cells; *ptr; i++, ptr++) { printTextRule pos; int dline, hline, dcomplete, hcomplete, offset, chars_to_output; if (cancel_pressed) break; if (i == 0) pos = PRINT_RULE_TOP; else pos = PRINT_RULE_MIDDLE; /* Print record header (e.g. "[ RECORD N ]") above each record */ if (i % cont->ncolumns == 0) { unsigned int lhwidth = hwidth; if ((opt_border < 2) && (hmultiline) && (format == &pg_asciiformat_old)) lhwidth++; /* for newline indicators */ if (!opt_tuples_only) print_aligned_vertical_line(format, opt_border, record++, lhwidth, dwidth, pos, fout); else if (i != 0 || !cont->opt->start_table || opt_border == 2) print_aligned_vertical_line(format, opt_border, 0, lhwidth, dwidth, pos, fout); } /* Format the header */ pg_wcsformat((const unsigned char *) cont->headers[i % cont->ncolumns], strlen(cont->headers[i % cont->ncolumns]), encoding, hlineptr, hheight); /* Format the data */ pg_wcsformat((const unsigned char *) *ptr, strlen(*ptr), encoding, dlineptr, dheight); /* * Loop through header and data in parallel dealing with newlines and * wrapped lines until they're both exhausted */ dline = hline = 0; dcomplete = hcomplete = 0; offset = 0; chars_to_output = dlineptr[dline].width; while (!dcomplete || !hcomplete) { /* Left border */ if (opt_border == 2) fprintf(fout, "%s", dformat->leftvrule); /* Header (never wrapped so just need to deal with newlines) */ if (!hcomplete) { int swidth = hwidth, target_width = hwidth; /* * Left spacer or new line indicator */ if ((opt_border == 2) || (hmultiline && (format == &pg_asciiformat_old))) fputs(hline ? format->header_nl_left : " ", fout); /* * Header text */ strlen_max_width(hlineptr[hline].ptr, &target_width, encoding); fprintf(fout, "%-s", hlineptr[hline].ptr); /* * Spacer */ swidth -= target_width; if (swidth > 0) fprintf(fout, "%*s", swidth, " "); /* * New line indicator or separator's space */ if (hlineptr[hline + 1].ptr) { /* More lines after this one due to a newline */ if ((opt_border > 0) || (hmultiline && (format != &pg_asciiformat_old))) fputs(format->header_nl_right, fout); hline++; } else { /* This was the last line of the header */ if ((opt_border > 0) || (hmultiline && (format != &pg_asciiformat_old))) fputs(" ", fout); hcomplete = 1; } } else { unsigned int swidth = hwidth + opt_border; if ((opt_border < 2) && (hmultiline) && (format == &pg_asciiformat_old)) swidth++; if ((opt_border == 0) && (format != &pg_asciiformat_old) && (hmultiline)) swidth++; fprintf(fout, "%*s", swidth, " "); } /* Separator */ if (opt_border > 0) { if (offset) fputs(format->midvrule_wrap, fout); else if (dline == 0) fputs(dformat->midvrule, fout); else fputs(format->midvrule_nl, fout); } /* Data */ if (!dcomplete) { int target_width = dwidth, bytes_to_output, swidth = dwidth; /* * Left spacer or wrap indicator */ fputs(offset == 0 ? " " : format->wrap_left, fout); /* * Data text */ bytes_to_output = strlen_max_width(dlineptr[dline].ptr + offset, &target_width, encoding); fwrite((char *) (dlineptr[dline].ptr + offset), 1, bytes_to_output, fout); chars_to_output -= target_width; offset += bytes_to_output; /* Spacer */ swidth -= target_width; if (chars_to_output) { /* continuing a wrapped column */ if ((opt_border > 1) || (dmultiline && (format != &pg_asciiformat_old))) { if (swidth > 0) fprintf(fout, "%*s", swidth, " "); fputs(format->wrap_right, fout); } } else if (dlineptr[dline + 1].ptr) { /* reached a newline in the column */ if ((opt_border > 1) || (dmultiline && (format != &pg_asciiformat_old))) { if (swidth > 0) fprintf(fout, "%*s", swidth, " "); fputs(format->nl_right, fout); } dline++; offset = 0; chars_to_output = dlineptr[dline].width; } else { /* reached the end of the cell */ if (opt_border > 1) { if (swidth > 0) fprintf(fout, "%*s", swidth, " "); fputs(" ", fout); } dcomplete = 1; } /* Right border */ if (opt_border == 2) fputs(dformat->rightvrule, fout); fputs("\n", fout); } else { /* * data exhausted (this can occur if header is longer than the * data due to newlines in the header) */ if (opt_border < 2) fputs("\n", fout); else fprintf(fout, "%*s %s\n", dwidth, "", dformat->rightvrule); } } } if (cont->opt->stop_table) { if (opt_border == 2 && !cancel_pressed) print_aligned_vertical_line(format, opt_border, 0, hwidth, dwidth, PRINT_RULE_BOTTOM, fout); /* print footers */ if (!opt_tuples_only && cont->footers != NULL && !cancel_pressed) { printTableFooter *f; if (opt_border < 2) fputc('\n', fout); for (f = cont->footers; f; f = f->next) fprintf(fout, "%s\n", f->data); } fputc('\n', fout); } free(hlineptr->ptr); free(dlineptr->ptr); free(hlineptr); free(dlineptr); if (is_local_pager) ClosePager(fout); } /**********************/ /* CSV format */ /**********************/ static void csv_escaped_print(const char *str, FILE *fout) { const char *p; fputc('"', fout); for (p = str; *p; p++) { if (*p == '"') fputc('"', fout); /* double quotes are doubled */ fputc(*p, fout); } fputc('"', fout); } static void csv_print_field(const char *str, FILE *fout, char sep) { /*---------------- * Enclose and escape field contents when one of these conditions is met: * - the field separator is found in the contents. * - the field contains a CR or LF. * - the field contains a double quote. * - the field is exactly "\.". * - the field separator is either "\" or ".". * The last two cases prevent producing a line that the server's COPY * command would interpret as an end-of-data marker. We only really * need to ensure that the complete line isn't exactly "\.", but for * simplicity we apply stronger restrictions here. *---------------- */ if (strchr(str, sep) != NULL || strcspn(str, "\r\n\"") != strlen(str) || strcmp(str, "\\.") == 0 || sep == '\\' || sep == '.') csv_escaped_print(str, fout); else fputs(str, fout); } static void print_csv_text(const printTableContent *cont, FILE *fout) { const char *const *ptr; int i; if (cancel_pressed) return; /* * The title and footer are never printed in csv format. The header is * printed if opt_tuples_only is false. * * Despite RFC 4180 saying that end of lines are CRLF, terminate lines * with '\n', which prints out as the system-dependent EOL string in text * mode (typically LF on Unix and CRLF on Windows). */ if (cont->opt->start_table && !cont->opt->tuples_only) { /* print headers */ for (ptr = cont->headers; *ptr; ptr++) { if (ptr != cont->headers) fputc(cont->opt->csvFieldSep[0], fout); csv_print_field(*ptr, fout, cont->opt->csvFieldSep[0]); } fputc('\n', fout); } /* print cells */ for (i = 0, ptr = cont->cells; *ptr; i++, ptr++) { csv_print_field(*ptr, fout, cont->opt->csvFieldSep[0]); if ((i + 1) % cont->ncolumns) fputc(cont->opt->csvFieldSep[0], fout); else fputc('\n', fout); } } static void print_csv_vertical(const printTableContent *cont, FILE *fout) { const char *const *ptr; int i; /* print records */ for (i = 0, ptr = cont->cells; *ptr; i++, ptr++) { if (cancel_pressed) return; /* print name of column */ csv_print_field(cont->headers[i % cont->ncolumns], fout, cont->opt->csvFieldSep[0]); /* print field separator */ fputc(cont->opt->csvFieldSep[0], fout); /* print field value */ csv_print_field(*ptr, fout, cont->opt->csvFieldSep[0]); fputc('\n', fout); } } /**********************/ /* HTML */ /**********************/ void html_escaped_print(const char *in, FILE *fout) { const char *p; bool leading_space = true; for (p = in; *p; p++) { switch (*p) { case '&': fputs("&", fout); break; case '<': fputs("<", fout); break; case '>': fputs(">", fout); break; case '\n': fputs("
\n", fout); break; case '"': fputs(""", fout); break; case ' ': /* protect leading space, for EXPLAIN output */ if (leading_space) fputs(" ", fout); else fputs(" ", fout); break; default: fputc(*p, fout); } if (*p != ' ') leading_space = false; } } static void print_html_text(const printTableContent *cont, FILE *fout) { bool opt_tuples_only = cont->opt->tuples_only; unsigned short opt_border = cont->opt->border; const char *opt_table_attr = cont->opt->tableAttr; unsigned int i; const char *const *ptr; if (cancel_pressed) return; if (cont->opt->start_table) { fprintf(fout, "\n", fout); /* print title */ if (!opt_tuples_only && cont->title) { fputs(" \n", fout); } /* print headers */ if (!opt_tuples_only) { fputs(" \n", fout); for (ptr = cont->headers; *ptr; ptr++) { fputs(" \n", fout); } fputs(" \n", fout); } } /* print cells */ for (i = 0, ptr = cont->cells; *ptr; i++, ptr++) { if (i % cont->ncolumns == 0) { if (cancel_pressed) break; fputs(" \n", fout); } fprintf(fout, " \n", fout); if ((i + 1) % cont->ncolumns == 0) fputs(" \n", fout); } if (cont->opt->stop_table) { printTableFooter *footers = footers_with_default(cont); fputs("
", fout); html_escaped_print(cont->title, fout); fputs("
", fout); html_escaped_print(*ptr, fout); fputs("
", cont->aligns[(i) % cont->ncolumns] == 'r' ? "right" : "left"); /* is string only whitespace? */ if ((*ptr)[strspn(*ptr, " \t")] == '\0') fputs("  ", fout); else html_escaped_print(*ptr, fout); fputs("
\n", fout); /* print footers */ if (!opt_tuples_only && footers != NULL && !cancel_pressed) { printTableFooter *f; fputs("

", fout); for (f = footers; f; f = f->next) { html_escaped_print(f->data, fout); fputs("
\n", fout); } fputs("

", fout); } fputc('\n', fout); } } static void print_html_vertical(const printTableContent *cont, FILE *fout) { bool opt_tuples_only = cont->opt->tuples_only; unsigned short opt_border = cont->opt->border; const char *opt_table_attr = cont->opt->tableAttr; unsigned long record = cont->opt->prior_records + 1; unsigned int i; const char *const *ptr; if (cancel_pressed) return; if (cont->opt->start_table) { fprintf(fout, "\n", fout); /* print title */ if (!opt_tuples_only && cont->title) { fputs(" \n", fout); } } /* print records */ for (i = 0, ptr = cont->cells; *ptr; i++, ptr++) { if (i % cont->ncolumns == 0) { if (cancel_pressed) break; if (!opt_tuples_only) fprintf(fout, "\n \n", record++); else fputs("\n \n", fout); } fputs(" \n" " \n", fout); fprintf(fout, " \n \n", fout); } if (cont->opt->stop_table) { fputs("
", fout); html_escaped_print(cont->title, fout); fputs("
Record %lu
 
", fout); html_escaped_print(cont->headers[i % cont->ncolumns], fout); fputs("", cont->aligns[i % cont->ncolumns] == 'r' ? "right" : "left"); /* is string only whitespace? */ if ((*ptr)[strspn(*ptr, " \t")] == '\0') fputs("  ", fout); else html_escaped_print(*ptr, fout); fputs("
\n", fout); /* print footers */ if (!opt_tuples_only && cont->footers != NULL && !cancel_pressed) { printTableFooter *f; fputs("

", fout); for (f = cont->footers; f; f = f->next) { html_escaped_print(f->data, fout); fputs("
\n", fout); } fputs("

", fout); } fputc('\n', fout); } } /*************************/ /* ASCIIDOC */ /*************************/ static void asciidoc_escaped_print(const char *in, FILE *fout) { const char *p; for (p = in; *p; p++) { switch (*p) { case '|': fputs("\\|", fout); break; default: fputc(*p, fout); } } } static void print_asciidoc_text(const printTableContent *cont, FILE *fout) { bool opt_tuples_only = cont->opt->tuples_only; unsigned short opt_border = cont->opt->border; unsigned int i; const char *const *ptr; if (cancel_pressed) return; if (cont->opt->start_table) { /* print table in new paragraph - enforce preliminary new line */ fputs("\n", fout); /* print title */ if (!opt_tuples_only && cont->title) { fputs(".", fout); fputs(cont->title, fout); fputs("\n", fout); } /* print table [] header definition */ fprintf(fout, "[%scols=\"", !opt_tuples_only ? "options=\"header\"," : ""); for (i = 0; i < cont->ncolumns; i++) { if (i != 0) fputs(",", fout); fprintf(fout, "%s", cont->aligns[(i) % cont->ncolumns] == 'r' ? ">l" : "headers; *ptr; ptr++) { if (ptr != cont->headers) fputs(" ", fout); fputs("^l|", fout); asciidoc_escaped_print(*ptr, fout); } fputs("\n", fout); } } /* print cells */ for (i = 0, ptr = cont->cells; *ptr; i++, ptr++) { if (i % cont->ncolumns == 0) { if (cancel_pressed) break; } if (i % cont->ncolumns != 0) fputs(" ", fout); fputs("|", fout); /* protect against needless spaces */ if ((*ptr)[strspn(*ptr, " \t")] == '\0') { if ((i + 1) % cont->ncolumns != 0) fputs(" ", fout); } else asciidoc_escaped_print(*ptr, fout); if ((i + 1) % cont->ncolumns == 0) fputs("\n", fout); } fputs("|====\n", fout); if (cont->opt->stop_table) { printTableFooter *footers = footers_with_default(cont); /* print footers */ if (!opt_tuples_only && footers != NULL && !cancel_pressed) { printTableFooter *f; fputs("\n....\n", fout); for (f = footers; f; f = f->next) { fputs(f->data, fout); fputs("\n", fout); } fputs("....\n", fout); } } } static void print_asciidoc_vertical(const printTableContent *cont, FILE *fout) { bool opt_tuples_only = cont->opt->tuples_only; unsigned short opt_border = cont->opt->border; unsigned long record = cont->opt->prior_records + 1; unsigned int i; const char *const *ptr; if (cancel_pressed) return; if (cont->opt->start_table) { /* print table in new paragraph - enforce preliminary new line */ fputs("\n", fout); /* print title */ if (!opt_tuples_only && cont->title) { fputs(".", fout); fputs(cont->title, fout); fputs("\n", fout); } /* print table [] header definition */ fputs("[cols=\"h,l\"", fout); switch (opt_border) { case 0: fputs(",frame=\"none\",grid=\"none\"", fout); break; case 1: fputs(",frame=\"none\"", fout); break; case 2: fputs(",frame=\"all\",grid=\"all\"", fout); break; } fputs("]\n", fout); fputs("|====\n", fout); } /* print records */ for (i = 0, ptr = cont->cells; *ptr; i++, ptr++) { if (i % cont->ncolumns == 0) { if (cancel_pressed) break; if (!opt_tuples_only) fprintf(fout, "2+^|Record %lu\n", record++); else fputs("2+|\n", fout); } fputs("headers[i % cont->ncolumns], fout); fprintf(fout, " %s|", cont->aligns[i % cont->ncolumns] == 'r' ? ">l" : "opt->stop_table) { /* print footers */ if (!opt_tuples_only && cont->footers != NULL && !cancel_pressed) { printTableFooter *f; fputs("\n....\n", fout); for (f = cont->footers; f; f = f->next) { fputs(f->data, fout); fputs("\n", fout); } fputs("....\n", fout); } } } /*************************/ /* LaTeX */ /*************************/ static void latex_escaped_print(const char *in, FILE *fout) { const char *p; for (p = in; *p; p++) switch (*p) { /* * We convert ASCII characters per the recommendations in * Scott Pakin's "The Comprehensive LATEX Symbol List", * available from CTAN. For non-ASCII, you're on your own. */ case '#': fputs("\\#", fout); break; case '$': fputs("\\$", fout); break; case '%': fputs("\\%", fout); break; case '&': fputs("\\&", fout); break; case '<': fputs("\\textless{}", fout); break; case '>': fputs("\\textgreater{}", fout); break; case '\\': fputs("\\textbackslash{}", fout); break; case '^': fputs("\\^{}", fout); break; case '_': fputs("\\_", fout); break; case '{': fputs("\\{", fout); break; case '|': fputs("\\textbar{}", fout); break; case '}': fputs("\\}", fout); break; case '~': fputs("\\~{}", fout); break; case '\n': /* This is not right, but doing it right seems too hard */ fputs("\\\\", fout); break; default: fputc(*p, fout); } } static void print_latex_text(const printTableContent *cont, FILE *fout) { bool opt_tuples_only = cont->opt->tuples_only; unsigned short opt_border = cont->opt->border; unsigned int i; const char *const *ptr; if (cancel_pressed) return; if (opt_border > 3) opt_border = 3; if (cont->opt->start_table) { /* print title */ if (!opt_tuples_only && cont->title) { fputs("\\begin{center}\n", fout); latex_escaped_print(cont->title, fout); fputs("\n\\end{center}\n\n", fout); } /* begin environment and set alignments and borders */ fputs("\\begin{tabular}{", fout); if (opt_border >= 2) fputs("| ", fout); for (i = 0; i < cont->ncolumns; i++) { fputc(*(cont->aligns + i), fout); if (opt_border != 0 && i < cont->ncolumns - 1) fputs(" | ", fout); } if (opt_border >= 2) fputs(" |", fout); fputs("}\n", fout); if (!opt_tuples_only && opt_border >= 2) fputs("\\hline\n", fout); /* print headers */ if (!opt_tuples_only) { for (i = 0, ptr = cont->headers; i < cont->ncolumns; i++, ptr++) { if (i != 0) fputs(" & ", fout); fputs("\\textit{", fout); latex_escaped_print(*ptr, fout); fputc('}', fout); } fputs(" \\\\\n", fout); fputs("\\hline\n", fout); } } /* print cells */ for (i = 0, ptr = cont->cells; *ptr; i++, ptr++) { latex_escaped_print(*ptr, fout); if ((i + 1) % cont->ncolumns == 0) { fputs(" \\\\\n", fout); if (opt_border == 3) fputs("\\hline\n", fout); if (cancel_pressed) break; } else fputs(" & ", fout); } if (cont->opt->stop_table) { printTableFooter *footers = footers_with_default(cont); if (opt_border == 2) fputs("\\hline\n", fout); fputs("\\end{tabular}\n\n\\noindent ", fout); /* print footers */ if (footers && !opt_tuples_only && !cancel_pressed) { printTableFooter *f; for (f = footers; f; f = f->next) { latex_escaped_print(f->data, fout); fputs(" \\\\\n", fout); } } fputc('\n', fout); } } /*************************/ /* LaTeX longtable */ /*************************/ static void print_latex_longtable_text(const printTableContent *cont, FILE *fout) { bool opt_tuples_only = cont->opt->tuples_only; unsigned short opt_border = cont->opt->border; unsigned int i; const char *opt_table_attr = cont->opt->tableAttr; const char *next_opt_table_attr_char = opt_table_attr; const char *last_opt_table_attr_char = NULL; const char *const *ptr; if (cancel_pressed) return; if (opt_border > 3) opt_border = 3; if (cont->opt->start_table) { /* begin environment and set alignments and borders */ fputs("\\begin{longtable}{", fout); if (opt_border >= 2) fputs("| ", fout); for (i = 0; i < cont->ncolumns; i++) { /* longtable supports either a width (p) or an alignment (l/r) */ /* Are we left-justified and was a proportional width specified? */ if (*(cont->aligns + i) == 'l' && opt_table_attr) { #define LONGTABLE_WHITESPACE " \t\n" /* advance over whitespace */ next_opt_table_attr_char += strspn(next_opt_table_attr_char, LONGTABLE_WHITESPACE); /* We have a value? */ if (next_opt_table_attr_char[0] != '\0') { fputs("p{", fout); fwrite(next_opt_table_attr_char, strcspn(next_opt_table_attr_char, LONGTABLE_WHITESPACE), 1, fout); last_opt_table_attr_char = next_opt_table_attr_char; next_opt_table_attr_char += strcspn(next_opt_table_attr_char, LONGTABLE_WHITESPACE); fputs("\\textwidth}", fout); } /* use previous value */ else if (last_opt_table_attr_char != NULL) { fputs("p{", fout); fwrite(last_opt_table_attr_char, strcspn(last_opt_table_attr_char, LONGTABLE_WHITESPACE), 1, fout); fputs("\\textwidth}", fout); } else fputc('l', fout); } else fputc(*(cont->aligns + i), fout); if (opt_border != 0 && i < cont->ncolumns - 1) fputs(" | ", fout); } if (opt_border >= 2) fputs(" |", fout); fputs("}\n", fout); /* print headers */ if (!opt_tuples_only) { /* firsthead */ if (opt_border >= 2) fputs("\\toprule\n", fout); for (i = 0, ptr = cont->headers; i < cont->ncolumns; i++, ptr++) { if (i != 0) fputs(" & ", fout); fputs("\\small\\textbf{\\textit{", fout); latex_escaped_print(*ptr, fout); fputs("}}", fout); } fputs(" \\\\\n", fout); fputs("\\midrule\n\\endfirsthead\n", fout); /* secondary heads */ if (opt_border >= 2) fputs("\\toprule\n", fout); for (i = 0, ptr = cont->headers; i < cont->ncolumns; i++, ptr++) { if (i != 0) fputs(" & ", fout); fputs("\\small\\textbf{\\textit{", fout); latex_escaped_print(*ptr, fout); fputs("}}", fout); } fputs(" \\\\\n", fout); /* If the line under the row already appeared, don't do another */ if (opt_border != 3) fputs("\\midrule\n", fout); fputs("\\endhead\n", fout); /* table name, caption? */ if (!opt_tuples_only && cont->title) { /* Don't output if we are printing a line under each row */ if (opt_border == 2) fputs("\\bottomrule\n", fout); fputs("\\caption[", fout); latex_escaped_print(cont->title, fout); fputs(" (Continued)]{", fout); latex_escaped_print(cont->title, fout); fputs("}\n\\endfoot\n", fout); if (opt_border == 2) fputs("\\bottomrule\n", fout); fputs("\\caption[", fout); latex_escaped_print(cont->title, fout); fputs("]{", fout); latex_escaped_print(cont->title, fout); fputs("}\n\\endlastfoot\n", fout); } /* output bottom table line? */ else if (opt_border >= 2) { fputs("\\bottomrule\n\\endfoot\n", fout); fputs("\\bottomrule\n\\endlastfoot\n", fout); } } } /* print cells */ for (i = 0, ptr = cont->cells; *ptr; i++, ptr++) { /* Add a line under each row? */ if (i != 0 && i % cont->ncolumns != 0) fputs("\n&\n", fout); fputs("\\raggedright{", fout); latex_escaped_print(*ptr, fout); fputc('}', fout); if ((i + 1) % cont->ncolumns == 0) { fputs(" \\tabularnewline\n", fout); if (opt_border == 3) fputs(" \\hline\n", fout); } if (cancel_pressed) break; } if (cont->opt->stop_table) fputs("\\end{longtable}\n", fout); } static void print_latex_vertical(const printTableContent *cont, FILE *fout) { bool opt_tuples_only = cont->opt->tuples_only; unsigned short opt_border = cont->opt->border; unsigned long record = cont->opt->prior_records + 1; unsigned int i; const char *const *ptr; if (cancel_pressed) return; if (opt_border > 2) opt_border = 2; if (cont->opt->start_table) { /* print title */ if (!opt_tuples_only && cont->title) { fputs("\\begin{center}\n", fout); latex_escaped_print(cont->title, fout); fputs("\n\\end{center}\n\n", fout); } /* begin environment and set alignments and borders */ fputs("\\begin{tabular}{", fout); if (opt_border == 0) fputs("cl", fout); else if (opt_border == 1) fputs("c|l", fout); else if (opt_border == 2) fputs("|c|l|", fout); fputs("}\n", fout); } /* print records */ for (i = 0, ptr = cont->cells; *ptr; i++, ptr++) { /* new record */ if (i % cont->ncolumns == 0) { if (cancel_pressed) break; if (!opt_tuples_only) { if (opt_border == 2) { fputs("\\hline\n", fout); fprintf(fout, "\\multicolumn{2}{|c|}{\\textit{Record %lu}} \\\\\n", record++); } else fprintf(fout, "\\multicolumn{2}{c}{\\textit{Record %lu}} \\\\\n", record++); } if (opt_border >= 1) fputs("\\hline\n", fout); } latex_escaped_print(cont->headers[i % cont->ncolumns], fout); fputs(" & ", fout); latex_escaped_print(*ptr, fout); fputs(" \\\\\n", fout); } if (cont->opt->stop_table) { if (opt_border == 2) fputs("\\hline\n", fout); fputs("\\end{tabular}\n\n\\noindent ", fout); /* print footers */ if (cont->footers && !opt_tuples_only && !cancel_pressed) { printTableFooter *f; for (f = cont->footers; f; f = f->next) { latex_escaped_print(f->data, fout); fputs(" \\\\\n", fout); } } fputc('\n', fout); } } /*************************/ /* Troff -ms */ /*************************/ static void troff_ms_escaped_print(const char *in, FILE *fout) { const char *p; for (p = in; *p; p++) switch (*p) { case '\\': fputs("\\(rs", fout); break; default: fputc(*p, fout); } } static void print_troff_ms_text(const printTableContent *cont, FILE *fout) { bool opt_tuples_only = cont->opt->tuples_only; unsigned short opt_border = cont->opt->border; unsigned int i; const char *const *ptr; if (cancel_pressed) return; if (opt_border > 2) opt_border = 2; if (cont->opt->start_table) { /* print title */ if (!opt_tuples_only && cont->title) { fputs(".LP\n.DS C\n", fout); troff_ms_escaped_print(cont->title, fout); fputs("\n.DE\n", fout); } /* begin environment and set alignments and borders */ fputs(".LP\n.TS\n", fout); if (opt_border == 2) fputs("center box;\n", fout); else fputs("center;\n", fout); for (i = 0; i < cont->ncolumns; i++) { fputc(*(cont->aligns + i), fout); if (opt_border > 0 && i < cont->ncolumns - 1) fputs(" | ", fout); } fputs(".\n", fout); /* print headers */ if (!opt_tuples_only) { for (i = 0, ptr = cont->headers; i < cont->ncolumns; i++, ptr++) { if (i != 0) fputc('\t', fout); fputs("\\fI", fout); troff_ms_escaped_print(*ptr, fout); fputs("\\fP", fout); } fputs("\n_\n", fout); } } /* print cells */ for (i = 0, ptr = cont->cells; *ptr; i++, ptr++) { troff_ms_escaped_print(*ptr, fout); if ((i + 1) % cont->ncolumns == 0) { fputc('\n', fout); if (cancel_pressed) break; } else fputc('\t', fout); } if (cont->opt->stop_table) { printTableFooter *footers = footers_with_default(cont); fputs(".TE\n.DS L\n", fout); /* print footers */ if (footers && !opt_tuples_only && !cancel_pressed) { printTableFooter *f; for (f = footers; f; f = f->next) { troff_ms_escaped_print(f->data, fout); fputc('\n', fout); } } fputs(".DE\n", fout); } } static void print_troff_ms_vertical(const printTableContent *cont, FILE *fout) { bool opt_tuples_only = cont->opt->tuples_only; unsigned short opt_border = cont->opt->border; unsigned long record = cont->opt->prior_records + 1; unsigned int i; const char *const *ptr; unsigned short current_format = 0; /* 0=none, 1=header, 2=body */ if (cancel_pressed) return; if (opt_border > 2) opt_border = 2; if (cont->opt->start_table) { /* print title */ if (!opt_tuples_only && cont->title) { fputs(".LP\n.DS C\n", fout); troff_ms_escaped_print(cont->title, fout); fputs("\n.DE\n", fout); } /* begin environment and set alignments and borders */ fputs(".LP\n.TS\n", fout); if (opt_border == 2) fputs("center box;\n", fout); else fputs("center;\n", fout); /* basic format */ if (opt_tuples_only) fputs("c l;\n", fout); } else current_format = 2; /* assume tuples printed already */ /* print records */ for (i = 0, ptr = cont->cells; *ptr; i++, ptr++) { /* new record */ if (i % cont->ncolumns == 0) { if (cancel_pressed) break; if (!opt_tuples_only) { if (current_format != 1) { if (opt_border == 2 && record > 1) fputs("_\n", fout); if (current_format != 0) fputs(".T&\n", fout); fputs("c s.\n", fout); current_format = 1; } fprintf(fout, "\\fIRecord %lu\\fP\n", record++); } if (opt_border >= 1) fputs("_\n", fout); } if (!opt_tuples_only) { if (current_format != 2) { if (current_format != 0) fputs(".T&\n", fout); if (opt_border != 1) fputs("c l.\n", fout); else fputs("c | l.\n", fout); current_format = 2; } } troff_ms_escaped_print(cont->headers[i % cont->ncolumns], fout); fputc('\t', fout); troff_ms_escaped_print(*ptr, fout); fputc('\n', fout); } if (cont->opt->stop_table) { fputs(".TE\n.DS L\n", fout); /* print footers */ if (cont->footers && !opt_tuples_only && !cancel_pressed) { printTableFooter *f; for (f = cont->footers; f; f = f->next) { troff_ms_escaped_print(f->data, fout); fputc('\n', fout); } } fputs(".DE\n", fout); } } /********************************/ /* Public functions */ /********************************/ /* * disable_sigpipe_trap * * Turn off SIGPIPE interrupt --- call this before writing to a temporary * query output file that is a pipe. * * No-op on Windows, where there's no SIGPIPE interrupts. */ void disable_sigpipe_trap(void) { #ifndef WIN32 pqsignal(SIGPIPE, SIG_IGN); #endif } /* * restore_sigpipe_trap * * Restore normal SIGPIPE interrupt --- call this when done writing to a * temporary query output file that was (or might have been) a pipe. * * Note: within psql, we enable SIGPIPE interrupts unless the permanent query * output file is a pipe, in which case they should be kept off. This * approach works only because psql is not currently complicated enough to * have nested usages of short-lived output files. Otherwise we'd probably * need a genuine save-and-restore-state approach; but for now, that would be * useless complication. In non-psql programs, this always enables SIGPIPE. * * No-op on Windows, where there's no SIGPIPE interrupts. */ void restore_sigpipe_trap(void) { #ifndef WIN32 pqsignal(SIGPIPE, always_ignore_sigpipe ? SIG_IGN : SIG_DFL); #endif } /* * set_sigpipe_trap_state * * Set the trap state that restore_sigpipe_trap should restore to. */ void set_sigpipe_trap_state(bool ignore) { always_ignore_sigpipe = ignore; } /* * PageOutput * * Tests if pager is needed and returns appropriate FILE pointer. * * If the topt argument is NULL no pager is used. */ FILE * PageOutput(int lines, const printTableOpt *topt) { /* check whether we need / can / are supposed to use pager */ if (topt && topt->pager && isatty(fileno(stdin)) && isatty(fileno(stdout))) { #ifdef TIOCGWINSZ unsigned short int pager = topt->pager; int min_lines = topt->pager_min_lines; int result; struct winsize screen_size; result = ioctl(fileno(stdout), TIOCGWINSZ, &screen_size); /* >= accounts for a one-line prompt */ if (result == -1 || (lines >= screen_size.ws_row && lines >= min_lines) || pager > 1) #endif { const char *pagerprog; FILE *pagerpipe; pagerprog = getenv("PSQL_PAGER"); if (!pagerprog) pagerprog = getenv("PAGER"); if (!pagerprog) pagerprog = DEFAULT_PAGER; else { /* if PAGER is empty or all-white-space, don't use pager */ if (strspn(pagerprog, " \t\r\n") == strlen(pagerprog)) return stdout; } disable_sigpipe_trap(); pagerpipe = popen(pagerprog, "w"); if (pagerpipe) return pagerpipe; /* if popen fails, silently proceed without pager */ restore_sigpipe_trap(); } } return stdout; } /* * ClosePager * * Close previously opened pager pipe, if any */ void ClosePager(FILE *pagerpipe) { if (pagerpipe && pagerpipe != stdout) { /* * If printing was canceled midstream, warn about it. * * Some pagers like less use Ctrl-C as part of their command set. Even * so, we abort our processing and warn the user what we did. If the * pager quit as a result of the SIGINT, this message won't go * anywhere ... */ if (cancel_pressed) fprintf(pagerpipe, _("Interrupted\n")); pclose(pagerpipe); restore_sigpipe_trap(); } } /* * Initialise a table contents struct. * Must be called before any other printTable method is used. * * The title is not duplicated; the caller must ensure that the buffer * is available for the lifetime of the printTableContent struct. * * If you call this, you must call printTableCleanup once you're done with the * table. */ void printTableInit(printTableContent *const content, const printTableOpt *opt, const char *title, const int ncolumns, const int nrows) { content->opt = opt; content->title = title; content->ncolumns = ncolumns; content->nrows = nrows; content->headers = pg_malloc0((ncolumns + 1) * sizeof(*content->headers)); content->cells = pg_malloc0((ncolumns * nrows + 1) * sizeof(*content->cells)); content->cellmustfree = NULL; content->footers = NULL; content->aligns = pg_malloc0((ncolumns + 1) * sizeof(*content->align)); content->header = content->headers; content->cell = content->cells; content->footer = content->footers; content->align = content->aligns; content->cellsadded = 0; } /* * Add a header to the table. * * Headers are not duplicated; you must ensure that the header string is * available for the lifetime of the printTableContent struct. * * If translate is true, the function will pass the header through gettext. * Otherwise, the header will not be translated. * * align is either 'l' or 'r', and specifies the alignment for cells in this * column. */ void printTableAddHeader(printTableContent *const content, char *header, const bool translate, const char align) { #ifndef ENABLE_NLS (void) translate; /* unused parameter */ #endif if (content->header >= content->headers + content->ncolumns) { fprintf(stderr, _("Cannot add header to table content: " "column count of %d exceeded.\n"), content->ncolumns); exit(EXIT_FAILURE); } *content->header = (char *) mbvalidate((unsigned char *) header, content->opt->encoding); #ifdef ENABLE_NLS if (translate) *content->header = _(*content->header); #endif content->header++; *content->align = align; content->align++; } /* * Add a cell to the table. * * Cells are not duplicated; you must ensure that the cell string is available * for the lifetime of the printTableContent struct. * * If translate is true, the function will pass the cell through gettext. * Otherwise, the cell will not be translated. * * If mustfree is true, the cell string is freed by printTableCleanup(). * Note: Automatic freeing of translatable strings is not supported. */ void printTableAddCell(printTableContent *const content, char *cell, const bool translate, const bool mustfree) { #ifndef ENABLE_NLS (void) translate; /* unused parameter */ #endif if (content->cellsadded >= content->ncolumns * content->nrows) { fprintf(stderr, _("Cannot add cell to table content: " "total cell count of %d exceeded.\n"), content->ncolumns * content->nrows); exit(EXIT_FAILURE); } *content->cell = (char *) mbvalidate((unsigned char *) cell, content->opt->encoding); #ifdef ENABLE_NLS if (translate) *content->cell = _(*content->cell); #endif if (mustfree) { if (content->cellmustfree == NULL) content->cellmustfree = pg_malloc0((content->ncolumns * content->nrows + 1) * sizeof(bool)); content->cellmustfree[content->cellsadded] = true; } content->cell++; content->cellsadded++; } /* * Add a footer to the table. * * Footers are added as elements of a singly-linked list, and the content is * strdup'd, so there is no need to keep the original footer string around. * * Footers are never translated by the function. If you want the footer * translated you must do so yourself, before calling printTableAddFooter. The * reason this works differently to headers and cells is that footers tend to * be made of up individually translated components, rather than being * translated as a whole. */ void printTableAddFooter(printTableContent *const content, const char *footer) { printTableFooter *f; f = pg_malloc0(sizeof(*f)); f->data = pg_strdup(footer); if (content->footers == NULL) content->footers = f; else content->footer->next = f; content->footer = f; } /* * Change the content of the last-added footer. * * The current contents of the last-added footer are freed, and replaced by the * content given in *footer. If there was no previous footer, add a new one. * * The content is strdup'd, so there is no need to keep the original string * around. */ void printTableSetFooter(printTableContent *const content, const char *footer) { if (content->footers != NULL) { free(content->footer->data); content->footer->data = pg_strdup(footer); } else printTableAddFooter(content, footer); } /* * Free all memory allocated to this struct. * * Once this has been called, the struct is unusable unless you pass it to * printTableInit() again. */ void printTableCleanup(printTableContent *const content) { if (content->cellmustfree) { int i; for (i = 0; i < content->nrows * content->ncolumns; i++) { if (content->cellmustfree[i]) free(unconstify(char *, content->cells[i])); } free(content->cellmustfree); content->cellmustfree = NULL; } free(content->headers); free(content->cells); free(content->aligns); content->opt = NULL; content->title = NULL; content->headers = NULL; content->cells = NULL; content->aligns = NULL; content->header = NULL; content->cell = NULL; content->align = NULL; if (content->footers) { for (content->footer = content->footers; content->footer;) { printTableFooter *f; f = content->footer; content->footer = f->next; free(f->data); free(f); } } content->footers = NULL; content->footer = NULL; } /* * IsPagerNeeded * * Setup pager if required */ static void IsPagerNeeded(const printTableContent *cont, int extra_lines, bool expanded, FILE **fout, bool *is_pager) { if (*fout == stdout) { int lines; if (expanded) lines = (cont->ncolumns + 1) * cont->nrows; else lines = cont->nrows + 1; if (!cont->opt->tuples_only) { printTableFooter *f; /* * FIXME -- this is slightly bogus: it counts the number of * footers, not the number of lines in them. */ for (f = cont->footers; f; f = f->next) lines++; } *fout = PageOutput(lines + extra_lines, cont->opt); *is_pager = (*fout != stdout); } else *is_pager = false; } /* * Use this to print any table in the supported formats. * * cont: table data and formatting options * fout: where to print to * is_pager: true if caller has already redirected fout to be a pager pipe * flog: if not null, also print the table there (for --log-file option) */ void printTable(const printTableContent *cont, FILE *fout, bool is_pager, FILE *flog) { bool is_local_pager = false; if (cancel_pressed) return; if (cont->opt->format == PRINT_NOTHING) return; /* print_aligned_*() handle the pager themselves */ if (!is_pager && cont->opt->format != PRINT_ALIGNED && cont->opt->format != PRINT_WRAPPED) { IsPagerNeeded(cont, 0, (cont->opt->expanded == 1), &fout, &is_pager); is_local_pager = is_pager; } /* clear any pre-existing error indication on the output stream */ clearerr(fout); /* print the stuff */ if (flog) print_aligned_text(cont, flog, false); switch (cont->opt->format) { case PRINT_UNALIGNED: if (cont->opt->expanded == 1) print_unaligned_vertical(cont, fout); else print_unaligned_text(cont, fout); break; case PRINT_ALIGNED: case PRINT_WRAPPED: /* * In expanded-auto mode, force vertical if a pager is passed in; * else we may make different decisions for different hunks of the * query result. */ if (cont->opt->expanded == 1 || (cont->opt->expanded == 2 && is_pager)) print_aligned_vertical(cont, fout, is_pager); else print_aligned_text(cont, fout, is_pager); break; case PRINT_CSV: if (cont->opt->expanded == 1) print_csv_vertical(cont, fout); else print_csv_text(cont, fout); break; case PRINT_HTML: if (cont->opt->expanded == 1) print_html_vertical(cont, fout); else print_html_text(cont, fout); break; case PRINT_ASCIIDOC: if (cont->opt->expanded == 1) print_asciidoc_vertical(cont, fout); else print_asciidoc_text(cont, fout); break; case PRINT_LATEX: if (cont->opt->expanded == 1) print_latex_vertical(cont, fout); else print_latex_text(cont, fout); break; case PRINT_LATEX_LONGTABLE: if (cont->opt->expanded == 1) print_latex_vertical(cont, fout); else print_latex_longtable_text(cont, fout); break; case PRINT_TROFF_MS: if (cont->opt->expanded == 1) print_troff_ms_vertical(cont, fout); else print_troff_ms_text(cont, fout); break; default: fprintf(stderr, _("invalid output format (internal error): %d"), cont->opt->format); exit(EXIT_FAILURE); } if (is_local_pager) ClosePager(fout); } /* * Use this to print query results * * result: result of a successful query * opt: formatting options * fout: where to print to * is_pager: true if caller has already redirected fout to be a pager pipe * flog: if not null, also print the data there (for --log-file option) */ void printQuery(const PGresult *result, const printQueryOpt *opt, FILE *fout, bool is_pager, FILE *flog) { printTableContent cont; int i, r, c; if (cancel_pressed) return; printTableInit(&cont, &opt->topt, opt->title, PQnfields(result), PQntuples(result)); /* Assert caller supplied enough translate_columns[] entries */ Assert(opt->translate_columns == NULL || opt->n_translate_columns >= cont.ncolumns); for (i = 0; i < cont.ncolumns; i++) { printTableAddHeader(&cont, PQfname(result, i), opt->translate_header, column_type_alignment(PQftype(result, i))); } /* set cells */ for (r = 0; r < cont.nrows; r++) { for (c = 0; c < cont.ncolumns; c++) { char *cell; bool mustfree = false; bool translate; if (PQgetisnull(result, r, c)) cell = opt->nullPrint ? opt->nullPrint : ""; else { cell = PQgetvalue(result, r, c); if (cont.aligns[c] == 'r' && opt->topt.numericLocale) { cell = format_numeric_locale(cell); mustfree = true; } } translate = (opt->translate_columns && opt->translate_columns[c]); printTableAddCell(&cont, cell, translate, mustfree); } } /* set footers */ if (opt->footers) { char **footer; for (footer = opt->footers; *footer; footer++) printTableAddFooter(&cont, *footer); } printTable(&cont, fout, is_pager, flog); printTableCleanup(&cont); } char column_type_alignment(Oid ftype) { char align; switch (ftype) { case INT2OID: case INT4OID: case INT8OID: case FLOAT4OID: case FLOAT8OID: case NUMERICOID: case OIDOID: case XIDOID: case XID8OID: case CIDOID: case MONEYOID: align = 'r'; break; default: align = 'l'; break; } return align; } void setDecimalLocale(void) { struct lconv *extlconv; extlconv = localeconv(); /* Don't accept an empty decimal_point string */ if (*extlconv->decimal_point) decimal_point = pg_strdup(extlconv->decimal_point); else decimal_point = "."; /* SQL output standard */ /* * Although the Open Group standard allows locales to supply more than one * group width, we consider only the first one, and we ignore any attempt * to suppress grouping by specifying CHAR_MAX. As in the backend's * cash.c, we must apply a range check to avoid being fooled by variant * CHAR_MAX values. */ groupdigits = *extlconv->grouping; if (groupdigits <= 0 || groupdigits > 6) groupdigits = 3; /* most common */ /* Don't accept an empty thousands_sep string, either */ /* similar code exists in formatting.c */ if (*extlconv->thousands_sep) thousands_sep = pg_strdup(extlconv->thousands_sep); /* Make sure thousands separator doesn't match decimal point symbol. */ else if (strcmp(decimal_point, ",") != 0) thousands_sep = ","; else thousands_sep = "."; } /* get selected or default line style */ const printTextFormat * get_line_style(const printTableOpt *opt) { /* * Note: this function mainly exists to preserve the convention that a * printTableOpt struct can be initialized to zeroes to get default * behavior. */ if (opt->line_style != NULL) return opt->line_style; else return &pg_asciiformat; } void refresh_utf8format(const printTableOpt *opt) { printTextFormat *popt = &pg_utf8format; const unicodeStyleBorderFormat *border; const unicodeStyleRowFormat *header; const unicodeStyleColumnFormat *column; popt->name = "unicode"; border = &unicode_style.border_style[opt->unicode_border_linestyle]; header = &unicode_style.row_style[opt->unicode_header_linestyle]; column = &unicode_style.column_style[opt->unicode_column_linestyle]; popt->lrule[PRINT_RULE_TOP].hrule = border->horizontal; popt->lrule[PRINT_RULE_TOP].leftvrule = border->down_and_right; popt->lrule[PRINT_RULE_TOP].midvrule = column->down_and_horizontal[opt->unicode_border_linestyle]; popt->lrule[PRINT_RULE_TOP].rightvrule = border->down_and_left; popt->lrule[PRINT_RULE_MIDDLE].hrule = header->horizontal; popt->lrule[PRINT_RULE_MIDDLE].leftvrule = header->vertical_and_right[opt->unicode_border_linestyle]; popt->lrule[PRINT_RULE_MIDDLE].midvrule = column->vertical_and_horizontal[opt->unicode_header_linestyle]; popt->lrule[PRINT_RULE_MIDDLE].rightvrule = header->vertical_and_left[opt->unicode_border_linestyle]; popt->lrule[PRINT_RULE_BOTTOM].hrule = border->horizontal; popt->lrule[PRINT_RULE_BOTTOM].leftvrule = border->up_and_right; popt->lrule[PRINT_RULE_BOTTOM].midvrule = column->up_and_horizontal[opt->unicode_border_linestyle]; popt->lrule[PRINT_RULE_BOTTOM].rightvrule = border->left_and_right; /* N/A */ popt->lrule[PRINT_RULE_DATA].hrule = ""; popt->lrule[PRINT_RULE_DATA].leftvrule = border->vertical; popt->lrule[PRINT_RULE_DATA].midvrule = column->vertical; popt->lrule[PRINT_RULE_DATA].rightvrule = border->vertical; popt->midvrule_nl = column->vertical; popt->midvrule_wrap = column->vertical; popt->midvrule_blank = column->vertical; /* Same for all unicode today */ popt->header_nl_left = unicode_style.header_nl_left; popt->header_nl_right = unicode_style.header_nl_right; popt->nl_left = unicode_style.nl_left; popt->nl_right = unicode_style.nl_right; popt->wrap_left = unicode_style.wrap_left; popt->wrap_right = unicode_style.wrap_right; popt->wrap_right_border = unicode_style.wrap_right_border; } /* * Compute the byte distance to the end of the string or *target_width * display character positions, whichever comes first. Update *target_width * to be the number of display character positions actually filled. */ static int strlen_max_width(unsigned char *str, int *target_width, int encoding) { unsigned char *start = str; unsigned char *end = str + strlen((char *) str); int curr_width = 0; while (str < end) { int char_width = PQdsplen((char *) str, encoding); /* * If the display width of the new character causes the string to * exceed its target width, skip it and return. However, if this is * the first character of the string (curr_width == 0), we have to * accept it. */ if (*target_width < curr_width + char_width && curr_width != 0) break; curr_width += char_width; str += PQmblen((char *) str, encoding); if (str > end) /* Don't overrun invalid string */ str = end; } *target_width = curr_width; return str - start; }