deck_t *markdown_load(FILE *input) {
- int c = 0, i = 0, l = 0, bits = 0;
-
- deck_t *deck;
- slide_t *slide;
+ int c = 0; // char
+ int i = 0; // increment
+ int l = 0; // line length
+ int hc = 0; // header count
+ int lc = 0; // line count
+ int sc = 0; // slide count
+ int bits = 0; // markdown bits
+
+ deck_t *deck = new_deck();
+ slide_t *slide = new_slide();
line_t *line;
- cstring_t *text;
+ cstring_t *text = cstring_init();
- deck = new_deck();
- slide = new_slide();
+ // assign first slide to deck
deck->slide = slide;
- text = cstring_init();
+ sc++;
while ((c = fgetc(input)) != EOF) {
if(c == '\n') {
if(CHECK_BIT(bits, IS_HR) &&
CHECK_BIT(line->bits, IS_EMPTY)) {
+ slide->lines = lc;
+
// clear text
(text->reset)(text);
-
- // reset line length
l = 0;
// create next slide
slide = next_slide(slide);
+ sc++;
} else {
// create new line
line = new_line();
slide->line = line;
+ lc = 1;
} else {
// create next line
line = next_line(line);
+ lc++;
}
// new text
text = cstring_init();
-
- // reset line length
l = 0;
}
} else if(c == '\t') {
// expand tab to spaces
- for (i = 0; i <= 4; i++) {
+ for (i = 0; i <= EXPAND_TABS; i++) {
(text->expand)(text, ' ');
l++;
}
- } else if(isprint(c) || isspace(c)) {
+ } else if(c == '\\') {
// add char to line
(text->expand)(text, c);
+ l++;
+
+ // if !IS_CODE add next char to line
+ // and do not increase line count
+ if(next_nonblank(text, 0) < CODE_INDENT) {
+
+ c = fgetc(input);
+ (text->expand)(text, c);
+
+ if(is_utf8(c)) {
+
+ // if utf-8 char > 1 byte add remaing to line
+ for(i = 0; i < length_utf8(c) - 1; i++) {
+ c = fgetc(input);
+ (text->expand)(text, c);
+ }
+ }
+
+ }
- // increase line lenght
+ } else if(isprint(c) || isspace(c)) {
+
+ // add char to line
+ (text->expand)(text, c);
l++;
} else if(is_utf8(c)) {
(text->expand)(text, c);
}
- // increase line length
l++;
}
}
+ slide->lines = lc;
+ deck->slides = sc;
+
// detect header
line = deck->slide->line;
if(line && line->text->size > 0 && line->text->text[0] == '%') {
// find first non-header line
while(line->text->size > 0 && line->text->text[0] == '%') {
+ hc++;
line = line->next;
}
// remove header lines from slide
deck->slide->line = line;
+
+ // adjust counts
+ deck->headers += hc;
+ deck->slide->lines -= hc;
}
// combine underlined H1/H2 in single line
SET_BIT(line->prev->bits, IS_H2);
}
+ // adjust line count
+ slide->lines -= 1;
+
// delete line
(line->text->delete)(line->text);
free(line);
}
int markdown_analyse(cstring_t *text) {
- int i = 0, bits = 0,
- offset = 0, eol = 0,
- equals = 0, hashes = 0,
+
+ int i = 0; // increment
+ int bits = 0; // markdown bits
+ int offset = 0; // text offset
+ int eol = 0; // end of line
+
+ int equals = 0, hashes = 0,
stars = 0, minus = 0,
- spaces = 0, other = 0;
+ spaces = 0, other = 0; // special character counts
// count leading spaces
offset = next_nonblank(text, 0);
// strip trailing spaces
for(eol = text->size; eol > offset && isspace(text->text[eol - 1]); eol--);
+ // IS_CODE
+ if(offset >= CODE_INDENT) {
+ SET_BIT(bits, IS_CODE);
+ }
+
for(i = offset; i < eol; i++) {
- switch(text->text[i]) {
- case '=': equals++; break;
- case '#': hashes++; break;
- case '*': stars++; break;
- case '-': minus++; break;
- case ' ': spaces++; break;
- default: other++; break;
+ if(text->text[i] == ' ') {
+ spaces++;
+
+ } else if(CHECK_BIT(bits, IS_CODE)) {
+ other++;
+
+ } else {
+ switch(text->text[i]) {
+ case '=': equals++; break;
+ case '#': hashes++; break;
+ case '*': stars++; break;
+ case '-': minus++; break;
+ case '\\': other++; i++; break;
+ default: other++; break;
+ }
}
}
SET_BIT(bits, IS_QUOTE);
}
- // IS_CODE
- if(offset >= 4) {
- SET_BIT(bits, IS_CODE);
- }
-
// IS_HR
if((minus >= 3 && equals + hashes + stars + other == 0) ||
(stars >= 3 && equals + hashes + minus + other == 0)) {
void markdown_debug(deck_t *deck, int debug) {
- // print header to STDERR
+ int sc = 0; // slide count
+ int lc = 0; // line count
+
int offset;
line_t *header;
- if(deck->header) {
- header = deck->header;
- while(header &&
- header->length > 0 &&
- header->text->text[0] == '%') {
-
- offset = next_blank(header->text, 0) + 1;
- fprintf(stderr, "header: %s\n", &header->text->text[offset]);
- header = header->next;
+
+ if(debug == 1) {
+ fprintf(stderr, "headers: %i\nslides: %i\n", deck->headers, deck->slides);
+
+ } else if(debug > 1) {
+
+ // print header to STDERR
+ if(deck->header) {
+ header = deck->header;
+ while(header &&
+ header->length > 0 &&
+ header->text->text[0] == '%') {
+
+ // skip descriptor word (e.g. %title:)
+ offset = next_blank(header->text, 0) + 1;
+
+ fprintf(stderr, "header: %s\n", &header->text->text[offset]);
+ header = header->next;
+ }
}
}
- // print slide/line count to STDERR
- int cs = 0, cl = 0;
slide_t *slide = deck->slide;
line_t *line;
+
+ // print slide/line count to STDERR
while(slide) {
- cs++;
- if(debug > 1) {
- fprintf(stderr, "slide %i:\n", cs);
- }
- line = slide->line;
- cl = 0;
- while(line) {
- cl++;
- if(debug > 1) {
- fprintf(stderr, " line %i: bits = %i, length = %i\n", cl, line->bits, line->length);
- }
- line = line->next;
- }
+ sc++;
+
if(debug == 1) {
- fprintf(stderr, "slide %i: %i lines\n", cs, cl);
+ fprintf(stderr, " slide %i: %i lines\n", sc, slide->lines);
+
+ } else if(debug > 1) {
+
+ // also print bits and line length
+ fprintf(stderr, " slide %i:\n", sc);
+ line = slide->line;
+ lc = 0;
+ while(line) {
+ lc++;
+ fprintf(stderr, " line %i: bits = %i, length = %i\n", lc, line->bits, line->length);
+ line = line->next;
+ }
}
+
slide = slide->next;
}
}
-
int is_utf8(char ch) {
return (ch & 0x80);
}
int length_utf8(char ch) {
- int i = 0;
+
+ int i = 0; // increment
+
while(ch & 0x80) {
i++;
ch <<= 1;
}
+
return i;
}
int next_nonblank(cstring_t *text, int i) {
while ((i < text->size) && isspace((text->text)[i]))
++i;
+
return i;
};
int next_blank(cstring_t *text, int i) {
while ((i < text->size) && !isspace((text->text)[i]))
++i;
+
return i;
};
