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https://git.zap.org.au/git/trader.git
synced 2024-12-04 14:46:45 -05:00
Implement the show_help() function with sample text
This commit is contained in:
John Zaitseff
parent
09d4455c3e
commit
92a95b253f
@ -104,7 +104,9 @@ typedef enum map_val {
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MAP_LAST = MAP_A + MAX_COMPANIES - 1
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} map_val_t;
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#define MAP_COMPANY(x) (MAP_A + x)
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#define MAP_COMPANY(x) (MAP_A + (x))
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#define MAP_ISCOMPANY(x) ((x) >= MAP_A && (x) <= MAP_LAST)
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#define PRINTABLE_MAP_VAL(x) ((char) (x))
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// Information about a move
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@ -113,6 +115,11 @@ typedef struct move_rec {
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int y;
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} move_rec_t;
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#define MOVE_TO_KEY(m) ((m) + 'a')
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#define KEY_TO_MOVE(k) \
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((tolower(k) < 'a' || tolower(k) >= MOVE_TO_KEY(NUMBER_MOVES)) ? \
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ERR : (tolower(k) - 'a'));
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// Company names
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extern const char *company_name[MAX_COMPANIES];
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241
src/help.c
241
src/help.c
@ -31,11 +31,250 @@
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#include "trader.h"
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/************************************************************************
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* Help text definition *
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************************************************************************/
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#define HELP_TEXT_PAGES (3)
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const char *help_text[HELP_TEXT_PAGES] = {
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"^BStar Traders^N help text, page 1."
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,
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"Page 2. Test of ^B~~^N constants and ^B^^^N attributes.\n"
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"MAX_X = ~x\n"
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"MAX_Y = ~y\n"
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"NUMBER_MOVES = ~m (~1, ~2, ~3, ~4, ~5, ~6, ~7, ~8, ~9, ... ~M)\n"
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"MAX_COMPANIES = ~c\n"
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"DEFAULT_MAX_TURN = ~t\n"
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"\n"
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"^BBold text^N\n"
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"^HHighlight text^N\n"
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"^KKeycode string^N, for example, \"Press ^K<ESC>^N to quit\".\n"
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"Map: ^eempty space^N as in ^e . ^N\n"
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"Map: ^ooutpost^N as in ^o + ^N\n"
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"Map: ^sstar^N as in ^s * ^N\n"
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"Map: ^ccompany^N as in ^c ~A ~B ~C ~D ~E ~F ~G ~H ^N\n"
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"Map: ^kkey choice^N as in ^k~1^N, ^k~2^N, ^k~3^N, up to ^k~M^N.\n"
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,
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"Page 3. Test map\n"
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"\n"
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" ^c~A^e . . ^o+^e ^o+^e . ^s*^e .^N\n"
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" ^c~A^e ^s*^e ^s*^e . . . . .^N\n"
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" ^c~A^e ^c~A^e . . . ^s*^e ^c~C^e .^N\n"
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" ^e. . ^k~2^e ^s*^e . . ^k~3^e .^N\n"
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" ^e. ^k~1^e . ^c~B^e ^c~B^e . . .^N\n"
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,
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};
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/************************************************************************
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* Help text function definitions *
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************************************************************************/
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void show_help (void)
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{
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// @@@ To be written
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int curpage = 0;
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bool done = false;
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newtxwin(23, 80, LINE_OFFSET+1, COL_CENTER(80));
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while (! done) {
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// Display a page of instructions
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werase(curwin);
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wbkgd(curwin, ATTR_NORMAL_WINDOW);
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box(curwin, 0, 0);
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center(curwin, 1, ATTR_WINDOW_TITLE, " How to Play ");
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center(curwin, 2, ATTR_NORMAL_WINDOW, "Page %d of %d",
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curpage + 1, HELP_TEXT_PAGES);
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wmove(curwin, 4, 2);
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// Process the help text string
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const char *s = help_text[curpage];
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int curattr = ATTR_NORMAL_WINDOW;
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while (*s != '\0') {
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switch (*s) {
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case '\n':
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// Start a new line, suitably indented
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wmove(curwin, getcury(curwin) + 1, 2);
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break;
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case '^':
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// Set the current attribute
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s++;
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switch (*s) {
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case '^':
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waddch(curwin, *s | curattr);
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break;
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case 'N':
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curattr = ATTR_NORMAL_WINDOW;
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wattrset(curwin, curattr);
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break;
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case 'B':
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curattr = ATTR_NORMAL_WINDOW | A_BOLD;
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wattrset(curwin, curattr);
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break;
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case 'H':
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curattr = ATTR_HIGHLIGHT_STR;
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wattrset(curwin, curattr);
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break;
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case 'K':
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curattr = ATTR_KEYCODE_STR;
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wattrset(curwin, curattr);
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break;
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case 'e':
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curattr = ATTR_MAP_EMPTY;
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wattrset(curwin, curattr);
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break;
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case 'o':
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curattr = ATTR_MAP_OUTPOST;
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wattrset(curwin, curattr);
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break;
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case 's':
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curattr = ATTR_MAP_STAR;
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wattrset(curwin, curattr);
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break;
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case 'c':
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curattr = ATTR_MAP_COMPANY;
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wattrset(curwin, curattr);
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break;
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case 'k':
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curattr = ATTR_MAP_CHOICE;
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wattrset(curwin, curattr);
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break;
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default:
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waddch(curwin, '^' | curattr);
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waddch(curwin, *s | curattr);
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break;
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}
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break;
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case '~':
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// Print a global constant
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s++;
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switch (*s) {
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case '~':
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waddch(curwin, *s | curattr);
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break;
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case 'x':
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wprintw(curwin, "%2d", MAX_X);
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break;
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case 'y':
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wprintw(curwin, "%2d", MAX_Y);
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break;
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case 'm':
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wprintw(curwin, "%2d", NUMBER_MOVES);
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break;
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case 'c':
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wprintw(curwin, "%d", MAX_COMPANIES);
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break;
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case 't':
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wprintw(curwin, "%2d", DEFAULT_MAX_TURN);
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break;
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case '1':
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case '2':
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case '3':
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case '4':
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case '5':
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case '6':
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case '7':
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case '8':
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case '9':
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// N-th choice of move, as a key press
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wprintw(curwin, "%c", MOVE_TO_KEY(*s - '1'));
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break;
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case 'M':
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// Last choice of move, as a key press
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wprintw(curwin, "%c", MOVE_TO_KEY(NUMBER_MOVES - 1));
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break;
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case 'A':
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case 'B':
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case 'C':
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case 'D':
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case 'E':
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case 'F':
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case 'G':
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case 'H':
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// Map representation of company
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wprintw(curwin, "%c",
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PRINTABLE_MAP_VAL(MAP_COMPANY(*s - 'A')));
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break;
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default:
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waddch(curwin, '~' | curattr);
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waddch(curwin, *s | curattr);
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break;
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}
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break;
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default:
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// Print the character
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waddch(curwin, *s | curattr);
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break;
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}
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s++;
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}
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center(curwin, 21, ATTR_WAITNORMAL_STR, (curpage == 0) ?
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"[ Press <SPACE> to continue ] " :
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"[ Press <SPACE> to continue or <BACKSPACE> for the previous page ] ");
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wrefresh(curwin);
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int key = gettxchar(curwin);
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switch (key) {
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case KEY_BS:
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case KEY_BACKSPACE:
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case KEY_DEL:
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case KEY_PPAGE:
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case KEY_UP:
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case KEY_LEFT:
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case KEY_BTAB:
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if (curpage == 0) {
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beep();
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} else {
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curpage--;
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}
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break;
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case KEY_CANCEL:
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case KEY_CTRL('G'):
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case KEY_ESC:
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done = true;
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break;
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default:
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curpage++;
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done = (curpage == HELP_TEXT_PAGES);
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}
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}
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deltxwin();
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txrefresh();
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}
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