prettytable.h

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#ifndef PRETTYTABLE_H
#define PRETTYTABLE_H
 
#include <stdbool.h>
#include <stdio.h>
 
#ifdef __cplusplus
extern "C" {
#endif
 
typedef const char* (*prettytable_header_fn)(void* user_data, int col);
 
typedef const char* (*prettytable_cell_fn)(void* user_data, int row, int col);
 
typedef int (*prettytable_strlen_fn)(void* user_data, const char* text);
 
typedef struct {
    const char* top_left;      // ┌
    const char* top_mid;       // ┬
    const char* top_right;     // ┐
    const char* mid_left;      // ├
    const char* mid_mid;       // ┼
    const char* mid_right;     // ┤
    const char* bottom_left;   // └
    const char* bottom_mid;    // ┴
    const char* bottom_right;  // ┘
    const char* horizontal;    // ─
    const char* vertical;      // │
} prettytable_style;
 
typedef struct {
    int num_rows;                      // Number of data rows
    int num_cols;                      // Number of columns
    prettytable_header_fn get_header;  // Callback for headers
    prettytable_cell_fn get_cell;      // Callback for cell values
    prettytable_strlen_fn get_length;  // Optional: custom length function
    void* user_data;                   // User context passed to callbacks
    const prettytable_style* style;    // Optional: custom border style
    bool show_header;                  // Show header row (default: true)
    bool show_row_count;               // Show row count at bottom (default: true)
    FILE* output;                      // Output stream (default: stdout)
} prettytable_config;
 
extern const prettytable_style PRETTYTABLE_STYLE_BOX;      // ┌─┬─┐ (default)
extern const prettytable_style PRETTYTABLE_STYLE_ASCII;    // +-+-+
extern const prettytable_style PRETTYTABLE_STYLE_MINIMAL;  // No borders
extern const prettytable_style PRETTYTABLE_STYLE_DOUBLE;   // ╔═╦═╗
 
int prettytable_print(const prettytable_config* config);
 
void prettytable_config_init(prettytable_config* config);
 
#ifdef __cplusplus
}
#endif
 
#endif  // PRETTYTABLE_H