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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(char *)); \
assert(parts != NULL); \
marks = realloc(marks, length * sizeof(uint8_t)); \
assert(marks != NULL); \
} \
} while (0)
bool format_init(format_t *format, const char *string, char delim)
{
char **parts = NULL;
uint8_t *marks = 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] = strslice(string, start, end);
marks[n] = false;
n++;
}
start = end += 2;
while (string[end] != '}') {
if (string[end] == '\0' || (string[end] == '$' && string[end + 1] == '{')) {
for (size_t k = 0; k < n; k++)
free(parts[k]);
free(parts);
free(marks);
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] = strslice(string, start, start + l);
marks[n] = true;
n++;
start = end = ++next;
goto next;
}
}
end++;
next:
}
if (start != end || string[end] != '\0') {
while (string[end] != '\0') end++;
format_grow(1);
parts[n] = strslice(string, start, end);
marks[n] = false;
n++;
}
format->parts = parts;
format->marks = marks;
format->length = n;
return true;
}
bool format_remark(format_t *format, const char *label, const format_pair_t *pairs)
{
int errors = 0;
for (size_t i = 0; i < format->length; i++) {
// Skip regular strings
if (!format->marks[i]) continue;
size_t l = strlen(format->parts[i]);
for (size_t j = 0; pairs[j].key != NULL; j++) {
size_t kl = strlen(pairs[j].key);
if ((pairs[j].prefix && !strncmp(pairs[j].key, format->parts[i], kl)) ||
(pairs[j].postfix && l > kl && !strncmp(pairs[j].key, format->parts[i] + (l - kl), kl)) ||
!strcmp(pairs[j].key, format->parts[i]))
{
format->marks[i] = pairs[j].mark;
goto next;
}
}
errors++;
if (label != NULL)
log_error("Unknown format option '%s' for block '%s'", format->parts[i], label);
next:
}
return errors == 0;
}
void format_free(format_t *format)
{
for (size_t i = 0; i < format->length; i++)
free(format->parts[i]);
free(format->parts);
free(format->marks);
}
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