lib/table.h

   1 /*
   2  * Copyright (c) 2009, 2010, 2011 Nicira Networks.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at:
   7  *
   8  *     http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 #ifndef TABLE_H
  18 #define TABLE_H 1
  19
  20 #include <stdbool.h>
  21 #include <stddef.h>
  22 #include "compiler.h"
  23
  24 struct table_style;
  25 \f
  26 /* Manipulating tables and their rows and columns. */
  27
  28 struct table {
  29     struct cell *cells;
  30     struct column *columns;
  31     size_t n_columns, allocated_columns;
  32     size_t n_rows, allocated_rows;
  33     size_t current_column;
  34     char *caption;
  35 };
  36
  37 void table_init(struct table *);
  38 void table_destroy(struct table *);
  39 void table_set_caption(struct table *, char *caption);
  40
  41 void table_add_column(struct table *, const char *heading, ...)
  42     PRINTF_FORMAT(2, 3);
  43 void table_add_row(struct table *);
  44 \f
  45 /* Table cells. */
  46
  47 struct cell {
  48     /* Literal text. */
  49     char *text;
  50
  51     /* JSON. */
  52     struct json *json;
  53     const struct ovsdb_type *type;
  54 };
  55
  56 struct cell *table_add_cell(struct table *);
  57 \f
  58 /* Table formatting. */
  59
  60 enum table_format {
  61     TF_TABLE,                   /* 2-d table. */
  62     TF_LIST,                    /* One cell per line, one row per paragraph. */
  63     TF_HTML,                    /* HTML table. */
  64     TF_CSV,                     /* Comma-separated lines. */
  65     TF_JSON                     /* JSON. */
  66 };
  67
  68 enum cell_format {
  69     CF_STRING,                  /* String format. */
  70     CF_BARE,                    /* String format without most punctuation. */
  71     CF_JSON                     /* JSON. */
  72 };
  73
  74 struct table_style {
  75     enum table_format format;   /* TF_*. */
  76     enum cell_format cell_format; /* CF_*. */
  77     bool headings;              /* Include headings? */
  78     int json_flags;             /* CF_JSON: Flags for json_to_string(). */
  79 };
  80
  81 #define TABLE_STYLE_DEFAULT { TF_TABLE, CF_STRING, true, JSSF_SORT }
  82
  83 #define TABLE_OPTION_ENUMS                      \
  84     OPT_NO_HEADINGS,                            \
  85     OPT_PRETTY,                                 \
  86     OPT_BARE
  87
  88 #define TABLE_LONG_OPTIONS                                      \
  89         {"format", required_argument, NULL, 'f'},               \
  90         {"data", required_argument, NULL, 'd'},                 \
  91         {"no-headings", no_argument, NULL, OPT_NO_HEADINGS},    \
  92         {"pretty", no_argument, NULL, OPT_PRETTY},              \
  93         {"bare", no_argument, NULL, OPT_BARE}
  94
  95 #define TABLE_OPTION_HANDLERS(STYLE)                \
  96         case 'f':                                   \
  97             table_parse_format(STYLE, optarg);      \
  98             break;                                  \
  99                                                     \
 100         case 'd':                                   \
 101             table_parse_cell_format(STYLE, optarg); \
 102             break;                                  \
 103                                                     \
 104         case OPT_NO_HEADINGS:                       \
 105             (STYLE)->headings = false;              \
 106             break;                                  \
 107                                                     \
 108         case OPT_PRETTY:                            \
 109             (STYLE)->json_flags |= JSSF_PRETTY;     \
 110             break;                                  \
 111                                                     \
 112         case OPT_BARE:                              \
 113             (STYLE)->format = TF_LIST;              \
 114             (STYLE)->cell_format = CF_BARE;         \
 115             (STYLE)->headings = false;              \
 116             break;
 117
 118 void table_parse_format(struct table_style *, const char *format);
 119 void table_parse_cell_format(struct table_style *, const char *format);
 120
 121 void table_print(const struct table *, const struct table_style *);
 122
 123 #endif /* table.h */