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#include "fitz.h"
struct fmt
{
char *buf;
int cap;
int len;
int indent;
int tight;
int col;
int sep;
int last;
};
static void fmtobj(struct fmt *fmt, fz_obj *obj);
static inline int iswhite(int ch)
{
return
ch == '\000' ||
ch == '\011' ||
ch == '\012' ||
ch == '\014' ||
ch == '\015' ||
ch == '\040';
}
static inline int isdelim(int ch)
{
return ch == '(' || ch == ')' ||
ch == '<' || ch == '>' ||
ch == '[' || ch == ']' ||
ch == '{' || ch == '}' ||
ch == '/' ||
ch == '%';
}
static inline void fmtputc(struct fmt *fmt, int c)
{
if (fmt->sep && !isdelim(fmt->last) && !isdelim(c)) {
fmt->sep = 0;
fmtputc(fmt, ' ');
}
fmt->sep = 0;
if (fmt->buf && fmt->len < fmt->cap)
fmt->buf[fmt->len] = c;
if (c == '\n')
fmt->col = 0;
else
fmt->col ++;
fmt->len ++;
fmt->last = c;
}
static inline void fmtindent(struct fmt *fmt)
{
int i = fmt->indent;
while (i--) {
fmtputc(fmt, ' ');
fmtputc(fmt, ' ');
}
}
static inline void fmtputs(struct fmt *fmt, char *s)
{
while (*s)
fmtputc(fmt, *s++);
}
static inline void fmtsep(struct fmt *fmt)
{
fmt->sep = 1;
}
static void fmtstr(struct fmt *fmt, fz_obj *obj)
{
int i, c;
fmtputc(fmt, '(');
for (i = 0; i < obj->u.s.len; i++)
{
c = (unsigned char) obj->u.s.buf[i];
if (c == '\n')
fmtputs(fmt, "\\n");
else if (c == '\r')
fmtputs(fmt, "\\r");
else if (c == '\t')
fmtputs(fmt, "\\t");
else if (c == '\b')
fmtputs(fmt, "\\b");
else if (c == '\f')
fmtputs(fmt, "\\f");
else if (c == '(')
fmtputs(fmt, "\\(");
else if (c == ')')
fmtputs(fmt, "\\)");
else if (c < 32 || c > 126) {
char buf[16];
fmtputc(fmt, '\\');
sprintf(buf, "%o", c);
fmtputs(fmt, buf);
}
else
fmtputc(fmt, c);
}
fmtputc(fmt, ')');
}
static void fmthex(struct fmt *fmt, fz_obj *obj)
{
int i, b, c;
fmtputc(fmt, '<');
for (i = 0; i < obj->u.s.len; i++) {
b = (unsigned char) obj->u.s.buf[i];
c = (b >> 4) & 0x0f;
fmtputc(fmt, c < 0xA ? c + '0' : c + 'A' - 0xA);
c = (b) & 0x0f;
fmtputc(fmt, c < 0xA ? c + '0' : c + 'A' - 0xA);
}
fmtputc(fmt, '>');
}
static void fmtname(struct fmt *fmt, fz_obj *obj)
{
unsigned char *s = (unsigned char *) fz_toname(obj);
int i, c;
fmtputc(fmt, '/');
for (i = 0; s[i]; i++)
{
if (isdelim(s[i]) || iswhite(s[i]) ||
s[i] == '#' || s[i] < 32 || s[i] > 127)
{
fmtputc(fmt, '#');
c = (s[i] >> 4) & 0xf;
fmtputc(fmt, c < 0xA ? c + '0' : c + 'A' - 0xA);
c = s[i] & 0xf;
fmtputc(fmt, c < 0xA ? c + '0' : c + 'A' - 0xA);
}
else
{
fmtputc(fmt, s[i]);
}
}
}
static void fmtarray(struct fmt *fmt, fz_obj *obj)
{
int i;
if (fmt->tight) {
fmtputc(fmt, '[');
for (i = 0; i < fz_arraylen(obj); i++) {
fmtobj(fmt, fz_arrayget(obj, i));
fmtsep(fmt);
}
fmtputc(fmt, ']');
}
else {
fmtputs(fmt, "[ ");
for (i = 0; i < fz_arraylen(obj); i++) {
if (fmt->col > 60) {
fmtputc(fmt, '\n');
fmtindent(fmt);
}
fmtobj(fmt, fz_arrayget(obj, i));
fmtputc(fmt, ' ');
}
fmtputc(fmt, ']');
fmtsep(fmt);
}
}
static void fmtdict(struct fmt *fmt, fz_obj *obj)
{
int i;
fz_obj *key, *val;
if (fmt->tight) {
fmtputs(fmt, "<<");
for (i = 0; i < fz_dictlen(obj); i++) {
fmtobj(fmt, fz_dictgetkey(obj, i));
fmtsep(fmt);
fmtobj(fmt, fz_dictgetval(obj, i));
fmtsep(fmt);
}
fmtputs(fmt, ">>");
}
else {
fmtputs(fmt, "<<\n");
fmt->indent ++;
for (i = 0; i < fz_dictlen(obj); i++) {
key = fz_dictgetkey(obj, i);
val = fz_dictgetval(obj, i);
fmtindent(fmt);
fmtobj(fmt, key);
fmtputc(fmt, ' ');
if (!fz_isindirect(val) && fz_isarray(val))
fmt->indent ++;
fmtobj(fmt, val);
fmtputc(fmt, '\n');
if (!fz_isindirect(val) && fz_isarray(val))
fmt->indent --;
}
fmt->indent --;
fmtindent(fmt);
fmtputs(fmt, ">>");
}
}
static void fmtobj(struct fmt *fmt, fz_obj *obj)
{
char buf[256];
if (!obj)
fmtputs(fmt, "<nil>");
else if (fz_isindirect(obj))
{
sprintf(buf, "%d %d R", fz_tonum(obj), fz_togen(obj));
fmtputs(fmt, buf);
}
else if (fz_isnull(obj))
fmtputs(fmt, "null");
else if (fz_isbool(obj))
fmtputs(fmt, fz_tobool(obj) ? "true" : "false");
else if (fz_isint(obj))
{
sprintf(buf, "%d", fz_toint(obj));
fmtputs(fmt, buf);
}
else if (fz_isreal(obj))
{
sprintf(buf, "%g", fz_toreal(obj));
if (strchr(buf, 'e')) /* bad news! */
sprintf(buf, fabsf(fz_toreal(obj)) > 1 ? "%1.1f" : "%1.8f", fz_toreal(obj));
fmtputs(fmt, buf);
}
else if (fz_isstring(obj))
{
char *str = fz_tostrbuf(obj);
int len = fz_tostrlen(obj);
int added = 0;
int i, c;
for (i = 0; i < len; i++) {
c = (unsigned char)str[i];
if (strchr("()\\\n\r\t\b\f", c))
added ++;
else if (c < 8)
added ++;
else if (c < 32)
added += 2;
else if (c >= 127)
added += 3;
}
if (added < obj->u.s.len)
fmtstr(fmt, obj);
else
fmthex(fmt, obj);
}
else if (fz_isname(obj))
fmtname(fmt, obj);
else if (fz_isarray(obj))
fmtarray(fmt, obj);
else if (fz_isdict(obj))
fmtdict(fmt, obj);
else
fmtputs(fmt, "<unknown object>");
}
int
fz_sprintobj(char *s, int n, fz_obj *obj, int tight)
{
struct fmt fmt;
fmt.indent = 0;
fmt.col = 0;
fmt.sep = 0;
fmt.last = 0;
fmt.tight = tight;
fmt.buf = s;
fmt.cap = n;
fmt.len = 0;
fmtobj(&fmt, obj);
if (fmt.buf && fmt.len < fmt.cap)
fmt.buf[fmt.len] = '\0';
return fmt.len;
}
int
fz_fprintobj(FILE *fp, fz_obj *obj, int tight)
{
char buf[1024];
char *ptr;
int n;
n = fz_sprintobj(nil, 0, obj, tight);
if ((n + 1) < sizeof buf)
{
fz_sprintobj(buf, sizeof buf, obj, tight);
fputs(buf, fp);
fputc('\n', fp);
}
else
{
ptr = fz_malloc(n + 1);
fz_sprintobj(ptr, n + 1, obj, tight);
fputs(ptr, fp);
fputc('\n', fp);
fz_free(ptr);
}
return n;
}
void
fz_debugobj(fz_obj *obj)
{
fz_fprintobj(stdout, obj, 0);
}
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