*
*/
+#include <ctype.h> // isalnum
#include <locale.h> // setlocale
-#include <stdlib.h>
#include <string.h> // strchr
-#include <unistd.h>
+#include <unistd.h> // usleep
#include "viewer.h"
206, 207, 201, 200, 199, 199,
198, 198, 197, 197, 196, 196};
-int ncurses_display(deck_t *deck, int notrans, int nofade, int invert) {
+int ncurses_display(deck_t *deck, int notrans, int nofade, int invert, int reload, int noreload) {
int c = 0; // char
int i = 0; // iterate
lc = 0;
line = slide->line;
- while(line) {
+ while(line && line->text) {
+
+ if (line->text->text)
+ lc += url_count_inline(line->text->text);
+
+ if (line->text->text)
+ line->length -= url_len_inline(line->text->text);
+
if(line->length > COLS) {
i = line->length;
offset = 0;
fprintf(stderr, "Error: Terminal width (%i columns) too small. Need at least %i columns.\n", COLS, i);
fprintf(stderr, "You may need to shorten some lines by inserting line breaks.\n");
- return 1;
+ // no reload
+ return 0;
}
// set max_cols
// print error
fprintf(stderr, "Error: Terminal height (%i lines) too small. Need at least %i lines.\n", LINES, max_lines + bar_top + bar_bottom);
- fprintf(stderr, "You may need to add additional horizontal rules ('***') to split your file in shorter slides.\n");
+ fprintf(stderr, "You may need to add additional horizontal rules (---) to split your file in shorter slides.\n");
- return 1;
+ // no reload
+ return 0;
}
// disable cursor
wbkgd(content, COLOR_PAIR(CP_WHITE));
slide = deck->slide;
+
+ // find slide to reload
+ while(reload > 1 && reload <= deck->slides) {
+ slide = slide->next;
+ sc++;
+ reload--;
+ }
+
+ // reset reload indicator
+ reload = 0;
+
while(slide) {
+
+ url_init();
+
// clear windows
werase(content);
werase(stdscr);
"%d / %d", sc, deck->slides);
// make header + fooder visible
+ wrefresh(content);
wrefresh(stdscr);
line = slide->line;
line = line->next;
}
+ int i, ymax;
+ getmaxyx( content, ymax, i );
+ for (i = 0; i < url_get_amount(); i++) {
+ mvwprintw(content, ymax - url_get_amount() - 1 + i, 3,
+ "[%d] %s", i, url_get_target(i));
+ }
+
// make content visible
wrefresh(content);
break;
// show slide n
- case '9': i++;
- case '8': i++;
- case '7': i++;
- case '6': i++;
- case '5': i++;
- case '4': i++;
- case '3': i++;
- case '2': i++;
- case '1': i++;
- if(i <= deck->slides) {
+ case '9':
+ case '8':
+ case '7':
+ case '6':
+ case '5':
+ case '4':
+ case '3':
+ case '2':
+ case '1':
+ i = get_slide_number(c);
+ if(i > 0 && i <= deck->slides) {
while(sc != i) {
// search forward
if(sc < i) {
}
break;
+ // reload
+ case 'r':
+ if(noreload == 0) {
+ // reload slide N
+ reload = sc;
+ slide = NULL;
+ } else {
+ // disable fading if reload is not possible
+ fade = false;
+ }
+ break;
+
// quit
case 'q':
// do not fade out on exit
fade = false;
+ // do not reload
+ reload = 0;
slide = NULL;
break;
// fade out
if(fade)
fade_out(content, trans, colors, invert);
+
+ url_purge();
}
+ // disable ncurses
endwin();
- return 0;
+ // free ncurses memory
+ delwin(content);
+ if(reload == 0)
+ delwin(stdscr);
+
+ // return reload indicator (0 means no reload)
+ return reload;
}
void add_line(WINDOW *window, int y, int x, line_t *line, int max_cols, int colors) {
char prompt[13];
strcpy(&prompt[0], CHECK_BIT(line->bits, IS_UNORDERED_LIST_1)? " | " : " ");
strcpy(&prompt[4], CHECK_BIT(line->bits, IS_UNORDERED_LIST_2)? " | " : " ");
- strcpy(&prompt[8], " +- ");
+
+ if(CHECK_BIT(line->bits, IS_UNORDERED_LIST_EXT)) {
+ strcpy(&prompt[8], line->next && CHECK_BIT(line->next->bits, IS_UNORDERED_LIST_3)? " | " : " ");
+ } else {
+ strcpy(&prompt[8], " +- ");
+ offset += 2;
+ }
+
wprintw(window,
"%s", prompt);
- inline_display(window, &line->text->text[offset + 2], colors);
+ if(!CHECK_BIT(line->bits, IS_CODE))
+ inline_display(window, &line->text->text[offset], colors);
// IS_UNORDERED_LIST_2
} else if(CHECK_BIT(line->bits, IS_UNORDERED_LIST_2)) {
offset = next_nonblank(line->text, 0);
char prompt[9];
strcpy(&prompt[0], CHECK_BIT(line->bits, IS_UNORDERED_LIST_1)? " | " : " ");
- strcpy(&prompt[4], " +- ");
+
+ if(CHECK_BIT(line->bits, IS_UNORDERED_LIST_EXT)) {
+ strcpy(&prompt[4], line->next && CHECK_BIT(line->next->bits, IS_UNORDERED_LIST_2)? " | " : " ");
+ } else {
+ strcpy(&prompt[4], " +- ");
+ offset += 2;
+ }
+
wprintw(window,
"%s", prompt);
- inline_display(window, &line->text->text[offset + 2], colors);
+ if(!CHECK_BIT(line->bits, IS_CODE))
+ inline_display(window, &line->text->text[offset], colors);
// IS_UNORDERED_LIST_1
} else if(CHECK_BIT(line->bits, IS_UNORDERED_LIST_1)) {
offset = next_nonblank(line->text, 0);
char prompt[5];
- strcpy(&prompt[0], " +- ");
+
+ if(CHECK_BIT(line->bits, IS_UNORDERED_LIST_EXT)) {
+ strcpy(&prompt[0], line->next && CHECK_BIT(line->next->bits, IS_UNORDERED_LIST_1)? " | " : " ");
+ } else {
+ strcpy(&prompt[0], " +- ");
+ offset += 2;
+ }
+
wprintw(window,
"%s", prompt);
- inline_display(window, &line->text->text[offset + 2], colors);
+ if(!CHECK_BIT(line->bits, IS_CODE))
+ inline_display(window, &line->text->text[offset], colors);
+ }
// IS_CODE
- } else if(CHECK_BIT(line->bits, IS_CODE)) {
+ if(CHECK_BIT(line->bits, IS_CODE)) {
// set static offset for code
offset = CODE_INDENT;
// print whole lines
wprintw(window,
"%s", &line->text->text[offset]);
+ }
- // IS_QUOTE
- } else if(CHECK_BIT(line->bits, IS_QUOTE)) {
- while(line->text->text[offset] == '>') {
- // print a reverse color block
- if(colors) {
- wattron(window, COLOR_PAIR(CP_BLACK));
- wprintw(window, "%s", " ");
- wattron(window, COLOR_PAIR(CP_WHITE));
- wprintw(window, "%s", " ");
- } else {
- wprintw(window, "%s", ">");
- }
-
- // find next quote or break
- offset++;
- if(line->text->text[offset] == ' ')
- offset = next_word(line->text, offset);
- }
+ if(!CHECK_BIT(line->bits, IS_UNORDERED_LIST_1) &&
+ !CHECK_BIT(line->bits, IS_UNORDERED_LIST_2) &&
+ !CHECK_BIT(line->bits, IS_UNORDERED_LIST_3) &&
+ !CHECK_BIT(line->bits, IS_CODE)) {
+
+ // IS_QUOTE
+ if(CHECK_BIT(line->bits, IS_QUOTE)) {
+ while(line->text->text[offset] == '>') {
+ // print a reverse color block
+ if(colors) {
+ wattron(window, COLOR_PAIR(CP_BLACK));
+ wprintw(window, "%s", " ");
+ wattron(window, COLOR_PAIR(CP_WHITE));
+ wprintw(window, "%s", " ");
+ } else {
+ wprintw(window, "%s", ">");
+ }
- inline_display(window, &line->text->text[offset], colors);
+ // find next quote or break
+ offset++;
+ if(line->text->text[offset] == ' ')
+ offset = next_word(line->text, offset);
+ }
- } else {
+ inline_display(window, &line->text->text[offset], colors);
+ } else {
- // IS_CENTER
- if(CHECK_BIT(line->bits, IS_CENTER)) {
- if(line->length < max_cols) {
- wmove(window, y, x + ((max_cols - line->length) / 2));
+ // IS_CENTER
+ if(CHECK_BIT(line->bits, IS_CENTER)) {
+ if(line->length < max_cols) {
+ wmove(window, y, x + ((max_cols - line->length) / 2));
+ }
}
- }
- // IS_H1 || IS_H2
- if(CHECK_BIT(line->bits, IS_H1) || CHECK_BIT(line->bits, IS_H2)) {
+ // IS_H1 || IS_H2
+ if(CHECK_BIT(line->bits, IS_H1) || CHECK_BIT(line->bits, IS_H2)) {
- // set headline color
- if(colors)
- wattron(window, COLOR_PAIR(CP_BLUE));
+ // set headline color
+ if(colors)
+ wattron(window, COLOR_PAIR(CP_BLUE));
- // enable underline for H1
- if(CHECK_BIT(line->bits, IS_H1))
- wattron(window, A_UNDERLINE);
+ // enable underline for H1
+ if(CHECK_BIT(line->bits, IS_H1))
+ wattron(window, A_UNDERLINE);
- // skip hashes
- while(line->text->text[offset] == '#')
- offset = next_word(line->text, offset);
+ // skip hashes
+ while(line->text->text[offset] == '#')
+ offset = next_word(line->text, offset);
- // print whole lines
- wprintw(window,
- "%s", &line->text->text[offset]);
+ // print whole lines
+ wprintw(window,
+ "%s", &line->text->text[offset]);
- wattroff(window, A_UNDERLINE);
+ wattroff(window, A_UNDERLINE);
- // no line-wide markdown
- } else {
+ // no line-wide markdown
+ } else {
- inline_display(window, &line->text->text[offset], colors);
+ inline_display(window, &line->text->text[offset], colors);
+ }
}
}
}
void inline_display(WINDOW *window, const char *c, const int colors) {
- const static char *special = "\\*_`"; // list of interpreted chars
+ const static char *special = "\\*_`!["; // list of interpreted chars
+ const char *i = c; // iterator
+ const char *start_link_name, *start_url;
+ int length_link_name, url_num;
cstack_t *stack = cstack_init();
+
// for each char in line
- for(; *c; c++) {
+ for(; *i; i++) {
// if char is in special char list
- if(strchr(special, *c)) {
+ if(strchr(special, *i)) {
// closing special char (or second backslash)
- if((stack->top)(stack, *c)) {
+ // only if not followed by :alnum:
+ if((stack->top)(stack, *i) &&
+ (!isalnum((int)i[1]) || *(i + 1) == '\0' || *i == '\\')) {
- switch(*c) {
+ switch(*i) {
// print escaped backslash
case '\\':
- wprintw(window, "%c", *c);
+ wprintw(window, "%c", *i);
break;
// disable highlight
case '*':
// treat special as regular char
} else if((stack->top)(stack, '\\')) {
- wprintw(window, "%c", *c);
+ wprintw(window, "%c", *i);
// remove backslash from stack
(stack->pop)(stack);
// opening special char
} else {
- switch(*c) {
- // enable highlight
- case '*':
- if(colors)
- wattron(window, COLOR_PAIR(CP_RED));
- break;
- // enable underline
- case '_':
- wattron(window, A_UNDERLINE);
- break;
- // enable inline code
- case '`':
- if(colors)
- wattron(window, COLOR_PAIR(CP_BLACK));
- break;
- // do nothing for backslashes
- }
- // push special char to stack
- (stack->push)(stack, *c);
+ // emphasis or code span can start after new-line or space only
+ // and of cause after another emphasis markup
+ //TODO this condition looks ugly
+ if(i == c ||
+ *(i - 1) == ' ' ||
+ ((*(i - 1) == '_' || *(i - 1) == '*') && ((i - 1) == c || *(i - 2) == ' ')) ||
+ *i == '\\') {
+
+ // url in pandoc style
+ if ((*i == '[' && strchr(i, ']')) ||
+ (*i == '!' && *(i + 1) == '[' && strchr(i, ']'))) {
+
+ if (*i == '!') i++;
+
+ if (strchr(i, ']')[1] == '(') {
+ i++;
+
+ // turn higlighting and underlining on
+ if (colors)
+ wattron(window, COLOR_PAIR(CP_BLUE));
+ wattron(window, A_UNDERLINE);
+
+ start_link_name = i;
+
+ // print the content of the label
+ // the label is printed as is
+ do {
+ wprintw(window, "%c", *i);
+ i++;
+ } while (*i != ']');
+
+ length_link_name = i - 1 - start_link_name;
+
+ i++;
+ i++;
+
+ start_url = i;
+
+ while (*i != ')') i++;
+
+ url_num = url_add(start_link_name, length_link_name, start_url, i - start_url, 0,0);
+
+ wprintw(window, " [%d]", url_num);
+
+ // turn highlighting and underlining off
+ wattroff(window, A_UNDERLINE);
+ wattron(window, COLOR_PAIR(CP_WHITE));
+
+ } else {
+ wprintw(window, "[");
+ }
+
+ } else switch(*i) {
+ // enable highlight
+ case '*':
+ if(colors)
+ wattron(window, COLOR_PAIR(CP_RED));
+ break;
+ // enable underline
+ case '_':
+ wattron(window, A_UNDERLINE);
+ break;
+ // enable inline code
+ case '`':
+ if(colors)
+ wattron(window, COLOR_PAIR(CP_BLACK));
+ break;
+ // do nothing for backslashes
+ }
+
+ // push special char to stack
+ (stack->push)(stack, *i);
+
+ } else {
+ wprintw(window, "%c", *i);
+ }
}
} else {
(stack->pop)(stack);
// print regular char
- wprintw(window, "%c", *c);
+ wprintw(window, "%c", *i);
}
}
}
return l;
}
+
+int get_slide_number(char init) {
+ int retval = init - '0';
+ char c;
+ // block for tenths of a second when using getch, ERR if no input
+ halfdelay(GOTO_SLIDE_DELAY);
+ while((c = getch()) != ERR) {
+ if (c < '0' || c > '9') {
+ retval = -1;
+ break;
+ }
+ retval = (retval * 10) + (c - '0');
+ }
+ nocbreak(); // cancel half delay mode
+ cbreak(); // go back to cbreak
+ return retval;
+}