diff options
| -rw-r--r-- | Makefile | 2 | ||||
| -rw-r--r-- | string-table.c | 156 | ||||
| -rw-r--r-- | string-table.h | 36 |
3 files changed, 193 insertions, 1 deletions
@@ -10,7 +10,7 @@ objects = ctree.o disk-io.o radix-tree.o extent-tree.o print-tree.o \ root-tree.o dir-item.o file-item.o inode-item.o inode-map.o \ extent-cache.o extent_io.o volumes.o utils.o repair.o \ qgroup.o raid6.o free-space-cache.o list_sort.o props.o \ - ulist.o qgroup-verify.o backref.o + ulist.o qgroup-verify.o backref.o string-table.o cmds_objects = cmds-subvolume.o cmds-filesystem.o cmds-device.o cmds-scrub.o \ cmds-inspect.o cmds-balance.o cmds-send.o cmds-receive.o \ cmds-quota.o cmds-qgroup.o cmds-replace.o cmds-check.o \ diff --git a/string-table.c b/string-table.c new file mode 100644 index 00000000..701f2147 --- /dev/null +++ b/string-table.c @@ -0,0 +1,156 @@ +/* + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public + * License v2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public + * License along with this program; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 021110-1307, USA. + */ + +#include <stdlib.h> +#include <string.h> +#include <stdio.h> +#include <stdarg.h> + +#include "string-table.h" + +/* + * This function create an array of char * which will represent a table + */ +struct string_table *table_create(int columns, int rows) +{ + struct string_table *p; + int size; + + size = sizeof( struct string_table ) + + rows * columns* sizeof(char *); + p = calloc(1, size); + + if (!p) return NULL; + + p->ncols = columns; + p->nrows = rows; + + return p; +} + +/* + * This function is like a vprintf, but store the results in a cell of + * the table. + * If fmt starts with '<', the text is left aligned; if fmt starts with + * '>' the text is right aligned. If fmt is equal to '=' the text will + * be replaced by a '=====' dimensioned on the basis of the column width + */ +char *table_vprintf(struct string_table *tab, int column, int row, + char *fmt, va_list ap) +{ + int idx = tab->ncols*row+column; + char *msg = calloc(100, sizeof(char)); + + if (!msg) + return NULL; + + if (tab->cells[idx]) + free(tab->cells[idx]); + tab->cells[idx] = msg; + vsnprintf(msg, 99, fmt, ap); + + return msg; +} + + +/* + * This function is like a printf, but store the results in a cell of + * the table. + */ +char *table_printf(struct string_table *tab, int column, int row, + char *fmt, ...) +{ + va_list ap; + char *ret; + + va_start(ap, fmt); + ret = table_vprintf(tab, column, row, fmt, ap); + va_end(ap); + + return ret; +} + +/* + * This function dumps the table. Every "=" string will be replaced by + * a "=======" length as the column + */ +void table_dump(struct string_table *tab) +{ + int sizes[tab->ncols]; + int i, j; + + for (i = 0 ; i < tab->ncols ; i++) { + sizes[i] = 0; + for (j = 0 ; j < tab->nrows ; j++) { + int idx = i + j*tab->ncols; + int s; + + if (!tab->cells[idx]) + continue; + + s = strlen(tab->cells[idx]) - 1; + if (s < 1 || tab->cells[idx][0] == '=') + continue; + + if (s > sizes[i]) + sizes[i] = s; + } + } + + + for (j = 0 ; j < tab->nrows ; j++) { + for (i = 0 ; i < tab->ncols ; i++) { + + int idx = i + j*tab->ncols; + char *s = tab->cells[idx]; + + if (!s|| !strlen(s)) { + printf("%*s", sizes[i], ""); + } else if (s && s[0] == '=') { + int k = sizes[i]; + while(k--) + putchar('='); + } else { + printf("%*s", + s[0] == '<' ? -sizes[i] : sizes[i], + s+1); + } + if (i != (tab->ncols - 1)) + putchar(' '); + } + putchar('\n'); + } + +} + +/* + * Deallocate a tabular and all its content + */ + +void table_free(struct string_table *tab) +{ + + int i, count; + + count = tab->ncols * tab->nrows; + + for (i=0 ; i < count ; i++) + if (tab->cells[i]) + free(tab->cells[i]); + + free(tab); + +} diff --git a/string-table.h b/string-table.h new file mode 100644 index 00000000..83c4425d --- /dev/null +++ b/string-table.h @@ -0,0 +1,36 @@ +/* + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public + * License v2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public + * License along with this program; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 021110-1307, USA. + */ + +#ifndef STRING_TABLE_H +#define STRING_TABLE_H + +struct string_table { + + int ncols, nrows; + char *cells[]; + +}; + + +struct string_table *table_create(int columns, int rows); +char *table_printf(struct string_table *tab, int column, int row, + char *fmt, ...); +char *table_vprintf(struct string_table *tab, int column, int row, + char *fmt, va_list ap); +void table_dump(struct string_table *tab); +void table_free(struct string_table *); + +#endif |