iomenu.h

   1 #include <stddef.h>
   2
   3 #include "config.h"
   4
   5 /*
   6  * Line coming from stdin, wrapped in a header.
   7  */
   8 typedef struct Line {
   9         char *content;               /* sent as output and matched by input */
  10         char *comment;               /* displayed at the right of the content */
  11
  12         int  number;                 /* set here as order will not change */
  13         int  matches;                /* whether it matches buffer's input */
  14
  15         struct Line *prev;           /* doubly linked list structure */
  16         struct Line *next;
  17 } Line;
  18
  19 /*
  20  * Group of lines from stdin delimited by a header line.
  21  *
  22  * The header lines are identified by a leading 'HEADER' character,
  23  * specified on command line.  Each header contains a doubly linked list of
  24  * lines.
  25  */
  26 typedef struct Header {
  27         int count;                   /* number of candidates in this header */
  28
  29         char *title;                 /* displayed in bold for each header */
  30
  31         struct Header *prev;         /* doubly linked list structure */
  32         struct Header *next;
  33
  34         Line *first;                 /* first line within the header */
  35 } Header;
  36
  37 /*
  38  * Buffer containing a doubly linked list of headers
  39  */
  40 typedef struct Buffer {
  41         int total;                   /* total number of line in buffer */
  42         int matching;                /* number lines matching the input */
  43
  44         char    input[LINE_SIZE];    /* string from user's keyboard */
  45         char   *prompt;              /* specified from the command line */
  46
  47         Header *current_h;           /* header containing the selected line */
  48
  49         Line   *empty;               /* empty line, for when needed */
  50         Line   *current;             /* selected line, highlighted */
  51         Line   *first;               /* boundaries of the linked list */
  52         Line   *last;
  53 } Buffer;
  54
  55
  56 void             die(const char *);
  57 Buffer         * fill_buffer(char *);
  58 Line           * parse_line(char *, char *);
  59 Line           * add_line(Buffer *, int, char *, char *, Line *);
  60 int              line_match_input(Line *, char *);
  61 void             filter_lines(Buffer *);
  62 char           * expand_tabs(char *);
  63 void             print_line(Line *, int, int);
  64 void             print_header();
  65 void             print_lines(Buffer *, int, int, int);
  66 void             update_screen(Buffer *, int, int, int);
  67 struct termios   terminal_set(int);
  68 void             get_input(Buffer *, int, int, int);
  69 int              do_key(char, Buffer *);
  70 void             do_next_line(Buffer *);
  71 void             do_prev_line(Buffer *);
  72 void             print_prompt(Buffer *, int);