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#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <assert.h>
#include "format.h"
#include "any_log.h"
#include "util.h"
#define format_grow(need) \
do { \
if (n + 1 >= length) { \
length += (need); \
parts = realloc(parts, length * sizeof(format_pair_t)); \
assert(parts != NULL); \
} \
} while (0)
bool format_init(format_t *format, const char *string, char delim)
{
format_pair_t *parts = NULL;
size_t length = 0, n = 0;
size_t start = 0, end = 0;
while (string[end] != '\0') {
if (string[end] == delim) {
// TODO: Escape formatting
if (string[end + 1] == '{') {
format_grow(2);
if (start != end) {
parts[n].string = strslice(string, start, end);
parts[n].mark = 0;
n++;
}
start = end += 2;
while (string[end] != '}') {
if (string[end] == '\0' || (string[end] == '$' && string[end + 1] == '{')) {
format->parts = parts, format->length = length;
format_free(format);
return false;
}
end++;
}
size_t l = end - start;
size_t next = end--;
while (start <= end && isspace(string[start])) start++, l--;
while (start <= end && isspace(string[end])) end--, l--;
parts[n].string = strslice(string, start, start + l);
parts[n].mark = 1;
n++;
start = end = ++next;
goto next;
}
}
end++;
next:
}
if (start != end || string[end] != '\0') {
while (string[end] != '\0') end++;
format_grow(1);
parts[n].string = strslice(string, start, end);
parts[n].mark = 0;
n++;
}
format->parts = parts;
format->length = n;
return true;
}
static size_t format_option_cmp(const char *a, const char *b)
{
size_t i = 0;
while (b[i] != '\0') {
if (a[i] != b[i]) return 0;
i++;
}
return i;
}
static bool format_option_match(format_pair_t *part, const format_option_t *option)
{
format_mark_t mark = 0;
size_t off = 0, tmp = 0;
for (const format_pair_t *ps = option->prefixes; ps != NULL && ps->string != NULL; ps++) {
tmp = format_option_cmp(part->string, ps->string);
if (tmp != 0) {
off += tmp;
mark |= ps->mark;
break;
}
}
tmp = format_option_cmp(part->string + off, option->option.string);
if (tmp == 0) return false;
off += tmp;
mark |= option->option.mark;
for (const format_pair_t *ss = option->suffixes; ss != NULL && ss->string != NULL; ss++) {
tmp = format_option_cmp(part->string + off, ss->string);
if (tmp != 0) {
off += tmp;
mark |= ss->mark;
break;
}
}
if (part->string[off] != '\0')
return false;
part->mark = mark;
return true;
}
int format_remark(format_t *format, const char *label, const format_option_t *options)
{
int errors = 0, marked = 0;
for (size_t i = 0; i < format->length; i++) {
// Skip regular strings
if (!format->parts[i].mark) continue;
for (size_t j = 0; !iszero(&options[j], sizeof(format_option_t)); j++) {
if (format_option_match(&format->parts[i], &options[j])) {
marked++;
goto next;
}
}
errors++;
if (label != NULL)
log_error("Unknown format option '%s' for block '%s'", format->parts[i].string, label);
next:
}
return errors > 0 ? -errors : marked;
}
void format_free(format_t *format)
{
for (size_t i = 0; i < format->length; i++)
free(format->parts[i].string);
free(format->parts);
}
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