62 lines
1.3 KiB
C
62 lines
1.3 KiB
C
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#include <assert.h>
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#include <stdbool.h>
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#include <stddef.h>
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#include <stdio.h>
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#include "apfl.h"
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#include "format.h"
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#define WRITE(w, buf, len) w.write(w.opaque, buf, len)
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#define TRY(x) if (!(x)) return false;
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static bool
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write_file(void *opaque, const char *buf, size_t len)
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{
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FILE *f = opaque;
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return fwrite(buf, len, 1, f) == 1;
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}
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struct apfl_format_writer
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apfl_format_file_writer(FILE *f)
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{
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return (struct apfl_format_writer) {
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.write = write_file,
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.opaque = f,
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};
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}
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bool
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apfl_format_put_string_view(struct apfl_format_writer w, struct apfl_string_view sv)
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{
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return WRITE(w, sv.bytes, sv.len);
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}
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#define PUT_INT_BUFSIZE 21 // ceil(log10(2**64)) + 1
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bool
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apfl_format_put_int(struct apfl_format_writer w, int i)
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{
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char buf[PUT_INT_BUFSIZE];
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size_t len = snprintf(buf, PUT_INT_BUFSIZE, "%d", i);
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assert(len < PUT_INT_BUFSIZE);
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return WRITE(w, buf, len);
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}
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bool
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apfl_format_put_char(struct apfl_format_writer w, char c)
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{
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return WRITE(w, &c, 1);
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}
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#define PUT_HEXBYTE_BUFSIZE 3
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bool
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apfl_format_put_hexbyte(struct apfl_format_writer w, unsigned char c)
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{
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char buf[PUT_HEXBYTE_BUFSIZE];
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size_t len = snprintf(buf, PUT_HEXBYTE_BUFSIZE, "%x", (unsigned) c);
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assert(len < PUT_HEXBYTE_BUFSIZE);
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return WRITE(w, buf, len);
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}
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