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minips.cpp
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minips.cpp
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/*
* minips.cpp
* by pts@fazekas.hu at Sat Mar 9 21:33:35 CET 2002
*/
#ifdef __GNUC__
#ifndef __clang__
#pragma implementation
#endif
#endif
#include "minips.hpp"
#include "error.hpp"
#include "gensio.hpp"
#if USE_DICT_MAPPING
#if OBJDEP
# warning REQUIRES: mapping.o
#endif
#include "mapping.hpp"
#endif
#include <stdio.h> /* sscanf() */
#include <string.h> /* memset() */
static inline bool is_ps_white(char c) {
return c=='\n' || c=='\r' || c=='\t' || c==' ' || c=='\f' || c=='\0';
}
static inline bool is_ps_name(char c) {
/* Dat: we differ from PDF since we do not treat the hashmark (`#') special
* in names.
* Dat: we differ from PostScript since we accept names =~ /[!-~]/
*/
return c>='!' && c<='~'
&& c!='/' && c!='%' && c!='{' && c!='}' && c!='<' && c!='>'
&& c!='[' && c!=']' && c!='(' && c!=')';
/* Dat: PS avoids: /{}<>()[]% \n\r\t\000\f\040 */
}
/** @param b: assume null-terminated @return true on erro
* @return false on error
*/
static inline bool toInteger(SimBuffer::Flat const&b, signed long &ret) {
int n=0; /* BUGFIX?? found by __CHECKER__ */
// b.term0();
return sscanf(b(), "%li%n", &ret, &n)<1 || b[n]!='\0';
}
static inline bool toHex(char const*s, unsigned long &ret) {
int n=0;
return sscanf(s, "%lx%n", &ret, &n)<1 || s[n]!='\0';
}
static inline bool toHex3(char const*s, char ret[3]) {
unsigned long l;
if (toHex(s, l)) return true;
ret[0]=((l>>8)&15)*17; ret[1]=((l>>4)&15)*17; ret[2]=(l&15)*17;
return false;
}
static inline bool toHex6(char const*s, char ret[3]) {
unsigned long l;
if (toHex(s, l)) return true;
ret[0]=(l>>16)&255; ret[1]=(l>>8)&255; ret[2]=l&255;
return false;
}
/** @param b: assume null-terminated @return true on error */
static inline bool toReal(SimBuffer::Flat const&b, double &ret) {
int n;
char c;
// b.term0();
/* Dat: glibc accepts "12e", "12E", "12e+" and "12E-" */
return sscanf(b(), "%lf%n", &ret, &n)<1
|| (c=b[n-1])=='e' || c=='E' || c=='+' || c=='-' || b[n]!='\0';
}
/** This is not correct if blen cuts the real number into two strings.
* @param b: assume null-terminated @return true on error
*/
static inline bool toReal(char const *b, slen_t blen, double &ret) {
int n;
char c;
// b.term0();
/* Dat: glibc accepts "12e", "12E", "12e+" and "12E-" */
return sscanf(b, "%lf%n", &ret, &n)<1
|| (c=b[n-1])=='e' || c=='E' || c=='+' || c=='-' || (slen_t)n!=blen;
}
MiniPS::Tokenizer::Tokenizer(GenBuffer::Readable& in_): in(in_), ungot(NO_UNGOT) {
}
int MiniPS::Tokenizer::yylex() {
int c=0; /* dummy initialization */
bool hi;
unsigned hv;
slen_t nest, len;
signed long l;
double d;
Real::metric_t metric;
char saved;
if (ungot==EOFF) return EOFF;
if (ungot!=NO_UNGOT) { c=ungot; ungot=NO_UNGOT; goto again; }
again_getcc:
c=in.vi_getcc();
again:
switch (c) {
case -1: eof:
return ungot=EOFF;
case '\n': case '\r': case '\t': case ' ': case '\f': case '\0':
goto again_getcc;
case '%': /* one-line comment */
while ((c=in.vi_getcc())!='\n' && c!='\r' && c!=-1) ;
if (c==-1) goto eof;
goto again_getcc;
case '{': case '[':
return '[';
case '}': case ']':
return ']';
case ')': goto err;
case '>':
if (in.vi_getcc()!='>') goto err;
return '>';
case '<':
if ((c=in.vi_getcc())==-1) { uf_hex: Error::sev(Error::EERROR) << "miniPS: unfinished hexstr" << (Error*)0; }
if (c=='<') return '<';
if (c=='~') Error::sev(Error::EERROR) << "miniPS: a85str unsupported" << (Error*)0;
tv.bb=&b; b.clear();
hi=true;
while (c!='>') {
if ((hv=b.hexc2n(c))!=16) {
if (hi) { b << (char)(hv<<4); hi=false; }
else { b.end_()[-1]|=hv; hi=true; }
} else if (!is_ps_white(c)) Error::sev(Error::EERROR) << "miniPS: syntax error in hexstr" << (Error*)0;
if ((c=in.vi_getcc())==-1) goto uf_hex;
}
/* This is correct even if an odd number of hex digits have arrived */
return '(';
case '(':
tv.bb=&b; b.clear();
nest=1;
while ((c=in.vi_getcc())!=-1) { redo:
if (c==')' && --nest==0) return '(';
if (c!='\\') { if (c=='(') nest++; b << (char)c; continue; }
/* read a backslash */
switch (c=in.vi_getcc()) {
case -1: goto uf_str;
case 'n': b << '\n'; break;
case 'r': b << '\r'; break;
case 't': b << '\t'; break;
case 'b': b << '\010'; break; /* \b and \a conflict between -ansi and -traditional */
case 'f': b << '\f'; break;
default:
if (c<'0' || c>'7') { b << (char)c; break; }
hv=c-'0'; /* read at most 3 octal chars */
if ((c=in.vi_getcc())==-1) goto uf_str;
if (c<'0' || c>'7') { b << (char)hv; goto redo; }
hv=8*hv+(c-'0');
if ((c=in.vi_getcc())==-1) goto uf_str;
if (c<'0' || c>'7') { b << (char)hv; goto redo; }
b << (char)(8*hv+(c-'0'));
} /* SWITCH */
} /* WHILE */
uf_str: Error::sev(Error::EERROR) << "miniPS: unfinished str" << (Error*)0;
break;
case '/':
/* fall-through, b will begin with '/' */
default: /* /nametype, /integertype or /realtype */
tv.bb=&b; b.clear();
b.clear(); b << (char)c;
while ((c=in.vi_getcc())!=-1 && is_ps_name(c)) b << (char)c;
ungot=c==-1?EOFF:c;
if (b[0]=='/') return '/';
b.term0();
/* Dat: we don't support base-n number such as `16#100' == 256 in PostScript */
if (!toInteger(b, l)) { tv.i=l; return '1'; }
/* Dat: call toInteger _before_ toReal */
// if (!toReal(b, tv.d)) { fprintf(stderr,"%f;\n", tv.d); }
/* assert(tv.bb!=NULLP); */
len=b.getLength();
if (!toReal(b, d)) { /* tv.bb is also valid */
tv.r=new Real(d, b(), len);
return '.';
}
if (len>2 && (metric=Real::str2metric(b()+len-2))!=Real::ME_COUNT) {
saved=b[len-2];
b[len-2]='\0';
if (!toReal(b, d)) {
tv.r=new Real(d, b(), len-2);
tv.r->setMetric(metric);
return ':'; /* Real with metric */
}
b[len-2]=saved;
}
return 'E'; /* /nametype */
}
err:
Error::sev(Error::EERROR) << "miniPS: syntax error" << (Error*)0;
goto again_getcc; /* notreached */
}
/* --- */
#if 0
inline static unsigned typerr() { assert(0); return 0; }
#endif
unsigned MiniPS::getType(VALUE v) {
return (v&1)!=0 ? T_INTEGER
: v+0U>Qmax_+0U ? RVALUE(v)->getType()
: v==Qnull ? T_NULL+0/*avoid gcc-3.0 ld bug*/
: T_BOOLEAN;
}
char const* MiniPS::getTypeStr(unsigned u) {
static char const* strs[]= { (char const*)NULLP, "null", "boolean", "integer", "real", "string", "array", "dict", "name", "Ename", "void" };
// return strs[getType(v)];
return strs[u];
}
void MiniPS::delete0(VALUE v) {
if (isDirect(v)) return;
Value *vp=RVALUE(v);
unsigned ty=vp->getType();
if (ty==T_DICT) RDICT(v)->free();
else if (ty==T_ARRAY) RARRAY(v)->free();
else if (ty==T_VOID) ;
else if (vp->hasPtr()) delete [] vp->begin_();
delete vp; /* BUGFIX at Sat Sep 7 12:50:13 CEST 2002 */
}
void MiniPS::dump(VALUE v, unsigned indent) {
Files::FILEW sout(stdout);
dump(sout, v, indent);
}
void MiniPS::dump(GenBuffer::Writable& out_, VALUE v, unsigned indent) {
if (v==Qnull) out_ << "null";
else if (v==Qtrue) out_ << "true";
else if (v==Qfalse) out_ << "false";
else if ((v&1)!=0) out_ << (v/2); /* prints a signed integer */
else {
Value *vp=RVALUE(v);
unsigned ty=vp->getType();
if (ty==T_STRING) {
SimBuffer::Static s((char*)vp->begin_(), vp->getLength());
SimBuffer::B b;
b.appendDumpPS(s, true);
out_ << b;
} else if (ty==T_SNAME || ty==T_ENAME) {
out_.vi_write((char*)vp->begin_(), vp->getLength());
} else if (ty==T_REAL) {
RREAL(v)->dump(out_);
} else if (ty==T_ARRAY) {
if (!vp->isDumping()) { /* Imp: thread-safe locking */
RARRAY(v)->dump(out_, indent);
} else out_ << "[...]";
} else if (ty==T_DICT) {
if (!vp->isDumping()) { /* Imp: thread-safe locking */
RDICT(v)->dump(out_, indent);
} else out_ << "<<...>>";
} else assert(0 && "unknown MiniPS type");
}
}
/* --- */
/* Sat Sep 7 12:30:19 CEST 2002 */
const double MiniPS::Real::me_factor[MiniPS::Real::ME_COUNT]={
1.0L, /* 1 bp = 1 bp (big point) */
72.0L, /* 1 in = 72 bp (inch) */
72.0L/72.27, /* 1 pt = 72/72.27 bp (point) */
12.0L*72.0/72.27, /* 1 pc = 12*72/72.27 bp (pica) */
1238.0L/1157.0*72.0/72.27, /* 1 dd = 1238/1157*72/72.27 bp (didot point) [about 1.06601110141206 bp] */
12.0L*1238.0/1157.0*72.0/72.27, /* 1 cc = 12*1238/1157*72/72.27 bp (cicero) */
72.0L/72.27/65536.0, /* 1 sp = 72/72.27/65536 bp (scaled point) */
72.0L/2.54, /* 1 cm = 72/2.54 bp (centimeter) */
7.2L/2.54, /* 1 mm = 7.2/2.54 bp (millimeter) */
};
/* Sat Sep 7 12:30:19 CEST 2002 */
char const* const MiniPS::Real::me_psfactor[MiniPS::Real::ME_COUNT]={
"", /* 1 bp = 1 bp (big point) */
" 72 mul", /* 1 in = 72 bp (inch) */
" 72 mul 72.27 div", /* 1 pt = 72/72.27 bp (point) */
" 864 mul 72.27 div", /* 1 pc = 12*72/72.27 bp (pica) */
" 891.36 mul 836.164 div", /* 1 dd = 1238/1157*72/72.27 bp (didot point) [about 1.06601110141206 bp] */
" 10696.32 mul 836.164 div", /* 1 cc = 12*1238/1157*72/72.27 bp (cicero) */
" 0.72 mul 47362.8672 div", /* 1 sp = 72/72.27/65536 bp (scaled point) */
" 72 mul 2.54 div", /* 1 cm = 72/2.54 bp (centimeter) */
" 720 mul 254 div", /* 1 mm = 7.2/2.54 bp (millimeter) */
};
MiniPS::Real::Real(double d_, char const*ptr_, ii_t len_): d(d_), metric(0), dumpPS(false) {
ty=T_REAL;
char *p=new char[len_+1]; /* Will be freed by MiniPS::delete0(). */
memcpy(ptr=p, ptr_, len=len_);
p[len_]='\0';
}
void MiniPS::Real::dump(GenBuffer::Writable &out_, bool dumpPS_force) {
char buf[64]; /* Imp: should be enough?? */
if (metric!=0 && (dumpPS_force || dumpPS)) {
sprintf(buf, "%" PTS_CFG_PRINTFGLEN "g%s", d, me_psfactor[metric]);
} else {
sprintf(buf, "%" PTS_CFG_PRINTFGLEN "g", d*me_factor[metric]);
}
out_ << buf;
}
MiniPS::Real::metric_t MiniPS::Real::str2metric(char const str[2]) {
switch (str[0]) {
case 'b': if (str[1]=='p') { return ME_bp; } break;
case 'i': if (str[1]=='n') { return ME_in; } break;
case 'p': if (str[1]=='t') { return ME_pt; }
if (str[1]=='c') { return ME_pc; } break;
case 'd': if (str[1]=='d') { return ME_dd; } break;
case 'c': if (str[1]=='c') { return ME_cc; }
if (str[1]=='m') { return ME_cm; } break;
case 's': if (str[1]=='p') { return ME_sp; } break;
case 'm': if (str[1]=='m') { return ME_mm; } break;
}
return ME_COUNT;
}
bool MiniPS::Real::isDimen(char const *str) {
double d;
slen_t len=strlen(str);
if (!toReal(str, len, d)) return true;
return len>2 && str2metric(str+len-2)!=ME_COUNT && !toReal(str, len-2, d);
}
MiniPS::String::String(char const*ptr_, ii_t len_) {
char *p=new char[len_+1]; /* Will be freed by MiniPS::delete0(). */
memcpy(ptr=p, ptr_, len=len_);
p[len_]='\0';
ty=T_STRING;
}
void MiniPS::String::replace(char const*ap, slen_t alen, char const*bp, slen_t blen) {
char *p=new char[alen+blen+1]; /* Will be freed by MiniPS::delete0(). */
memcpy(p, ap, alen);
memcpy(p+alen, bp, blen);
p[alen+blen]='\0';
delete [] (char*)ptr;
ptr=p;
}
MiniPS::Sname::Sname(char const*ptr_, ii_t len_) {
param_assert(len_>=1 && ptr_[0]=='/');
char *p=new char[len_+1]; /* Will be freed by MiniPS::delete0(). */
memcpy(ptr=p, ptr_, len=len_);
p[len_]='\0';
ty=T_SNAME;
}
bool MiniPS::Sname::equals(Sname const&other) {
return len==other.len && 0==memcmp(ptr, other.ptr, len);
}
bool MiniPS::Sname::equals(char const*other) {
return 0==strcmp(1+(char*)ptr, other);
}
MiniPS::Ename::Ename(char const*ptr_, ii_t len_) {
param_assert(len_>=1 && ptr_[0]!='/');
char *p=new char[len_+1]; /* Will be freed by MiniPS::delete0(). */
memcpy(ptr=p, ptr_, len=len_);
p[len_]='\0';
ty=T_ENAME;
}
bool MiniPS::Ename::equals(Ename const&other) {
return len==other.len && 0==memcmp(ptr, other.ptr, len);
}
bool MiniPS::Ename::equals(char const*other, slen_t otherlen) {
return (slen_t)len==otherlen && 0==memcmp(ptr, other, otherlen);
}
bool MiniPS::Ename::equals(char const*other) {
return 0==strcmp((char*)ptr, other);
}
MiniPS::Array::Array() {
alloced=16;
ptr=new VALUE[alloced=16];
len=0;
ty=T_ARRAY;
}
void MiniPS::Array::free() {
VALUE *p=(VALUE*)ptr, *pend=p+len;
while (p!=pend) MiniPS::delete0(*p++);
delete [] (VALUE*)ptr;
}
void MiniPS::Array::push(VALUE v) {
if (len==alloced) extend(len+1);
((VALUE*)ptr)[len++]=v;
}
MiniPS::VALUE MiniPS::Array::get(ii_t index) {
return (index<0 || index>=len) ? Qundef : ((VALUE*)ptr)[index];
}
void MiniPS::Array::set(ii_t index, VALUE val) {
param_assert(index>=0 && index<len);
MiniPS::delete0(((VALUE*)ptr)[index]);
((VALUE*)ptr)[index]=val;
}
void MiniPS::Array::dump(GenBuffer::Writable &out_, unsigned indent) {
dumping=true;
if (len==0) {
out_ << "[]";
} else if (len==1) {
out_ << "[ ";
MiniPS::dump(out_, ((VALUE*)ptr)[0], indent);
out_ << " ]";
} else {
indent+=2;
char *spaces=new char[indent];
memset(spaces, ' ', indent);
// spaces[indent]='\n';
out_ << "[ % " << len << " elements\n";
VALUE *p=(VALUE*)ptr, *pend=p+len;
while (p!=pend) {
out_.vi_write(spaces, indent);
MiniPS::dump(out_, *p++, indent);
/*if(p!=pend)*/ out_ << "\n";
}
out_.vi_write(spaces, indent-=2);
out_ << "]";
delete [] spaces;
}
dumping=false;
}
void MiniPS::Array::extend(ii_t newlen) {
if (newlen<=alloced) return;
ii_t newalloced=alloced;
assert(alloced>=0);
while (newlen>newalloced) newalloced<<=1;
VALUE *newptr=new VALUE[newalloced];
memcpy(newptr, ptr, len*sizeof(VALUE));
delete [] (VALUE*)ptr;
ptr=newptr;
alloced=newalloced;
/* len remains unchanged */
}
void MiniPS::Array::getFirst(VALUE *&val) {
if (len==0) { val=(VALUE*)NULLP; return; }
val=(VALUE*)ptr;
}
void MiniPS::Array::getNext(VALUE *&val) {
val++;
if (len+(VALUE*)ptr==val) val=(VALUE*)NULLP;
}
#if USE_DICT_MAPPING
MiniPS::Dict::Dict() { /* Sun Mar 24 21:02:41 CET 2002 */
ptr=(void*)new Mapping::H(sizeof(VALUE)+1);
/* hash value format: a VALUE, and a flag (0 or 1) indicating touchedness */
len=0; /* meaningless */
ty=T_DICT;
}
void MiniPS::Dict::free() {
char const*const* keyy; slen_t keylen;
VALUE *val = 0; /* pacify gcc-4.2.1 by giving initial value */
bool touched;
getFirst(keyy, keylen, val, touched);
while (keyy!=(char const*const*)NULLP) {
MiniPS::delete0(*val);
getNext(keyy, keylen, val, touched);
}
delete (Mapping::H*)ptr;
}
void MiniPS::Dict::put(char const*key, VALUE val) {
put(key,strlen(key),val);
}
MiniPS::VALUE MiniPS::Dict::push(char const*keys, slen_t keylen, VALUE val) {
if (keys[0]=='/') { keys++; keylen--; }
char *has=((Mapping::H*)ptr)->get(keys,keylen);
VALUE ret=Qundef;
if (has!=(char const*)NULLP) {
memcpy(&ret, has, sizeof(VALUE));
// printf("found=/%s.\n", keys);
/* No MiniPS::delete0(); deliberately. */
memcpy(has, &val, sizeof(VALUE)); has[sizeof(VALUE)]=0;
} else {
char tmp[sizeof(VALUE)+1];
memcpy(tmp, &val, sizeof(VALUE));
tmp[sizeof(VALUE)]=0;
((Mapping::H*)ptr)->set(keys,keylen,tmp);
}
return ret;
}
void MiniPS::Dict::put(char const*keys, slen_t keylen, VALUE val) {
if (keys[0]=='/') { keys++; keylen--; }
char *has=((Mapping::H*)ptr)->get(keys,keylen);
if (has!=NULLP) {
VALUE ret=Qundef; memcpy(&ret, has, sizeof(VALUE));
MiniPS::delete0(ret);
memcpy(has, &val, sizeof(VALUE)); has[sizeof(VALUE)]=0;
} else {
char tmp[sizeof(VALUE)+1];
memcpy(tmp, &val, sizeof(VALUE));
tmp[sizeof(VALUE)]=0;
((Mapping::H*)ptr)->set(keys,keylen,tmp);
}
}
MiniPS::VALUE MiniPS::Dict::get(char const*keys, slen_t keylen) {
if (keys[0]=='/') { keys++; keylen--; }
char *has=((Mapping::H*)ptr)->get(keys,keylen);
VALUE ret=Qundef; if (has!=NULLP) memcpy(&ret, has, sizeof(VALUE));
return ret;
}
MiniPS::VALUE MiniPS::Dict::get1(char const*keys, slen_t keylen) {
if (keys[0]=='/') { keys++; keylen--; }
char *has=((Mapping::H*)ptr)->get(keys,keylen);
VALUE ret=Qundef; if (has!=NULLP) { memcpy(&ret, has, sizeof(VALUE)); has[sizeof(VALUE)]=1; }
return ret;
}
void MiniPS::Dict::untouch(char const*keys, slen_t keylen) {
if (keys[0]=='/') { keys++; keylen--; }
char *has=((Mapping::H*)ptr)->get(keys,keylen);
if (has!=NULLP) has[sizeof(VALUE)]=0;
}
void MiniPS::Dict::getFirst(char const*const*& key, slen_t &keylen, VALUE *&val, bool &touched) {
char *has;
// key=(char const*const*)NULLP;return;
((Mapping::H*)ptr)->getFirst(key, keylen, has);
if (key==(char const*const*)NULLP) return;
val=PTS_align_cast(VALUE*,has);
touched=has[sizeof(VALUE)]!=0;
}
void MiniPS::Dict::getNext (char const*const*& key, slen_t &keylen, VALUE *&val, bool &touched) {
char *has;
((Mapping::H*)ptr)->getNext(key, keylen, has);
if (key==(char const*const*)NULLP) return;
val=PTS_align_cast(VALUE*,has);
touched=has[sizeof(VALUE)]!=0;
}
void MiniPS::Dict::dump(GenBuffer::Writable &out_, unsigned indent, bool dump_delimiters) {
dumping=true;
slen_t len=((Mapping::H*)ptr)->getLength();
if (len==0) {
if (dump_delimiters) out_ << "<<>>";
} else {
char const*const* keyy; slen_t keylen;
VALUE *val = 0; /* pacify gcc-4.2.1 by giving initial value */
bool touched;
indent+=2;
char *spaces=new char[indent];
memset(spaces, ' ', indent);
// spaces[indent]='\n';
if (dump_delimiters) out_ << "<< % " << len << " key(s)\n";
getFirst(keyy, keylen, val, touched);
while (keyy!=(char const*const*)NULLP) {
out_.vi_write(spaces, indent);
out_.vi_putcc('/');
out_.vi_write(*keyy, keylen); /* Imp: PDF #...-quoting */
out_ << " ";
MiniPS::dump(out_, *val, indent);
out_.vi_putcc('\n');
getNext(keyy, keylen, val, touched);
}
if (dump_delimiters) { out_.vi_write(spaces, indent-=2); out_ << ">>"; }
delete [] spaces;
}
dumping=false;
}
void MiniPS::Dict::extend(ii_t) {}
#else /* a MiniPS::Dict implementation with linear search */
MiniPS::Dict::Dict() {
alloced=16;
ptr=new VALUE[alloced=16];
len=0;
ty=T_DICT;
}
void MiniPS::Dict::free() {
VALUE *p=(VALUE*)ptr, *pend=p+len;
while (p!=pend) MiniPS::delete0(*p++);
delete [] (VALUE*)ptr;
}
void MiniPS::Dict::put(char const*key, VALUE val) {
return put(key,strlen(key),val);
}
MiniPS::VALUE MiniPS::Dict::push(char const*keys, slen_t keylen, VALUE val) {
// param_assert(key[0]=='/');
if (keys[0]=='/') { keys++; keylen--; }
VALUE *p=(VALUE*)ptr, *pend=p+len;
while (p!=pend) {
if (MiniPS::RENAME(p[0]&~1)->equals(key,keylen)) {
VALUE v=p[1];
p[1]=val; return v;
}
p+=2;
}
if (len==alloced) extend(len+2);
((VALUE*)ptr)[len++]=(MiniPS::VALUE)new Ename(keys,keylen);
((VALUE*)ptr)[len++]=val;
return Qundef;
}
void MiniPS::Dict::put(char const*keys, slen_t keylen, VALUE val) {
// param_assert(key[0]=='/');
if (keys[0]=='/') { keys++; keylen--; }
//void MiniPS::Dict::put(VALUE key, VALUE val) {
//param_assert(MiniPS::getType(key)==T_ENAME);
VALUE *p=(VALUE*)ptr, *pend=p+len;
while (p!=pend) {
if (MiniPS::RENAME(p[0]&~1)->equals(keys,keylen)) {
MiniPS::delete0(p[1]);
p[1]=val;
return;
}
p+=2;
}
if (len==alloced) extend(len+2);
((VALUE*)ptr)[len++]=(MiniPS::VALUE)new Ename(keys,keylen);
((VALUE*)ptr)[len++]=val;
}
MiniPS::VALUE MiniPS::Dict::get(char const*key, slen_t keylen) {
if (key[0]=='/') { key++; keylen--; }
VALUE *p=(VALUE*)ptr, *pend=p+len;
while (p!=pend) {
//printf("for=%s trying=%s.\n", key, MiniPS::RENAME(p[0]&~1)->begin_());
if (MiniPS::RENAME(p[0]&~1)->equals(key, keylen)) return p[1];
p+=2;
}
return Qundef;
}
MiniPS::VALUE MiniPS::Dict::get1(char const*key, slen_t keylen) {
if (key[0]=='/') { key++; keylen--; }
VALUE *p=(VALUE*)ptr, *pend=p+len;
while (p!=pend) {
//printf("for=%s trying=%s.\n", key, MiniPS::RENAME(p[0]&~1)->begin_());
if (MiniPS::RENAME(p[0]&~1)->equals(key,keylen)) {
/* dirty, black magic */ p[0]|=1;
return p[1];
}
p+=2;
}
return Qundef;
}
void MiniPS::Dict::untouch(char const*key, slen_t keylen) {
if (key[0]=='/') { key++; keylen--; }
VALUE *p=(VALUE*)ptr, *pend=p+len;
while (p!=pend) {
if (MiniPS::RENAME(p[0]&~1)->equals(key,keylen)) { p[0]&=~1; return; }
p+=2;
}
}
void MiniPS::Dict::getFirst(char const*const*& key, slen_t &keylen, VALUE *&val, bool &touched) {
// assert(MiniPS::getType(((VALUE*)ptr)[0])==T_ENAME);
if (len==0) { key=(char const*const*)NULLP; return; }
assert(ptr!=NULLP);
Ename *skey=(Ename*)(((VALUE*)ptr)[0]&~1);
key=(char**)&skey->ptr;
keylen=skey->len;
val=((VALUE*)ptr)+1;
touched=(((VALUE*)ptr)[0]&1)!=0;
}
void MiniPS::Dict::getNext (char const*const*& key, slen_t &keylen, VALUE *&val, bool &touched) {
val+=2;
if (len+(VALUE*)ptr==(VALUE*)val-1) { key=(char const*const*)NULLP; return; }
Ename *skey=RENAME(val[-1]&~1);
// assert(MiniPS::getType((VALUE)skey)==T_ENAME);
key=(char**)&skey->ptr;
keylen=skey->len;
touched=(val[-1]&1)!=0;
}
#if 0 /* obsolete */
void MiniPS::Dict::getFirst(VALUE *&key, VALUE *&val) {
if (len==0) { key=val=(VALUE*)NULLP; return; }
assert(ptr!=NULLP);
key=(VALUE*)ptr;
val=key+1;
}
void MiniPS::Dict::getNext(VALUE *&key, VALUE *&val) {
key+=2;
if (len+(VALUE*)ptr==key) key=val=(VALUE*)NULLP;
else val=key+1;
}
#endif
void MiniPS::Dict::dump(GenBuffer::Writable &out_, unsigned indent, bool dump_delimiters) {
assert(len>=0 && (len&1)==0);
if (len==0) {
if (dump_delimiters) out_ << "<<>>";
} else {
indent+=2;
char *spaces=new char[indent];
memset(spaces, ' ', indent);
// spaces[indent]='\n';
if (dump_delimiters) out_ << "<< % " << (len/2) << " key(s)\n";
VALUE *p=(VALUE*)ptr, *pend=p+len;
while (p!=pend) {
out_.vi_write(spaces, indent);
MiniPS::dump(out_, *p++, indent);
out_ << " ";
MiniPS::dump(out_, *p++, indent);
/*if(p!=pend)*/ out_.vi_putcc('\n'); // out_ << "\n";
}
if (dump_delimiters) { out_.vi_write(spaces, indent-=2); out_ << ">>"; }
delete [] spaces;
}
}
void MiniPS::Dict::extend(ii_t newlen) {
if (newlen<=alloced) return;
ii_t newalloced=alloced;
assert(alloced>=0);
while (newlen>newalloced) newalloced<<=1;
VALUE *newptr=new VALUE[newalloced];
memcpy(newptr, ptr, len*sizeof(VALUE));
delete [] (VALUE*)ptr;
ptr=newptr;
alloced=newalloced;
/* len remains unchanged */
}
#endif
/* --- */
MiniPS::Parser::Parser(char const *filename_) {
FILE *ff;
ff=(filename_[0]=='-' && filename_[1]=='\0')? stdin: fopen(filename_, "r"); /* not "rb" */
if (ff==NULLP) Error::sev(Error::EERROR) << "MiniPS::Parser: cannot open file: " << FNQ(filename_) << (Error*)0;
f=(FILEP)ff;
rd=new Files::FILER(ff);
tok=new Tokenizer(*rd);
master=(Parser*)NULLP;
free_level=4;
unread=Tokenizer::NO_UNGOT;
depth=0;
specRuns=(MiniPS::Dict*)NULLP;
specRunsDelete=false;
}
MiniPS::Parser::Parser(FILEP f_) {
f=f_;
rd=new Files::FILER(PTS_align_cast(FILE*,f_));
tok=new Tokenizer(*rd);
master=(Parser*)NULLP;
free_level=3;
unread=Tokenizer::NO_UNGOT;
depth=0;
specRuns=(MiniPS::Dict*)NULLP;
specRunsDelete=false;
}
MiniPS::Parser::Parser(GenBuffer::Readable *rd_) {
f=(FILEP)NULLP;
rd=rd_;
tok=new Tokenizer(*rd);
master=(Parser*)NULLP;
free_level=2;
unread=Tokenizer::NO_UNGOT;
depth=0;
specRuns=(MiniPS::Dict*)NULLP;
specRunsDelete=false;
}
MiniPS::Parser::Parser(Tokenizer *tok_) {
master=(Parser*)NULLP;
f=(FILEP)NULLP;
rd=(GenBuffer::Readable*)NULLP;
tok=tok_;
master=(Parser*)NULLP;
free_level=0;
unread=Tokenizer::NO_UNGOT;
depth=0;
specRuns=(MiniPS::Dict*)NULLP;
specRunsDelete=false;
}
MiniPS::Parser::Parser(Parser *master_) {
f=(FILEP)NULLP;
rd=(GenBuffer::Readable*)NULLP;
tok=(Tokenizer*)NULLP;
master=master_;
free_level=1;
unread=Tokenizer::NO_UNGOT;
depth=0;
specRuns=(MiniPS::Dict*)NULLP;
specRunsDelete=false;
}
MiniPS::Parser::~Parser() {
/* We delete the master here! */
if (master!=NULLP) delete master; /* recursive ~Parser() call */
if (free_level>=2) delete tok;
if (free_level>=3) delete rd;
if (free_level>=4) fclose(PTS_align_cast(FILE*,f));
if (specRunsDelete) MiniPS::delete0((VALUE)specRuns);
}
void MiniPS::Parser::addSpecRun(char const* filename_, GenBuffer::Readable *rd_) {
if (specRuns==NULLP) {
specRunsDelete=true;
specRuns=new MiniPS::Dict();
}
specRuns->put(filename_, (MiniPS::VALUE)new MiniPS::Void(rd_));
}
void MiniPS::Parser::setSpecRuns(MiniPS::Dict *newSpecRuns) {
if (newSpecRuns!=specRuns) {
if (specRunsDelete) MiniPS::delete0((VALUE)specRuns);
specRunsDelete=false;
specRuns=newSpecRuns;
}
}
void MiniPS::Parser::setDepth(unsigned depth_) {
if (depth_>=MAX_DEPTH) Error::sev(Error::EERROR) << "MiniPS::Parser: `run' inclusion too deep" << (Error*)0;
depth=depth_;
}
MiniPS::VALUE MiniPS::Parser::parse1(int closer, int sev) {
char *beg=0; slen_t len=0; /* pacify g++-2.91 */
Real::metric_t metric; Real *r=0; /* pacify g++-2.91 */
VALUE v, w;
if (master!=NULLP) {
from_master:
/* vvv EOF_ALLOWED means: the master cannot close our open '>' or ']' */
if ((v=master->parse1(EOF_ALLOWED, sev))!=Qundef) return v;
MiniPS::delete0(v);
delete master;
master=(Parser*)NULLP;
// fprintf(stderr, "closed master\n");
}
// return parse1_real(closer);
int i=0;
if (unread!=Tokenizer::NO_UNGOT) {
i=unread;
unread=Tokenizer::NO_UNGOT;
} else i=tok->yylex();
// fprintf(stderr, "i=%d i='%c'\n", i, i);
switch (i) {
case Tokenizer::EOFF: case ']': case '>':
if (closer==i) return Qundef; /* EOF */
Error::sev((Error::level_t)sev) << "MiniPS::Parser: premature EOF (early closer: " << (int)i << ')' << (Error*)0;
return Qerror; /* parse error */
case '(': {
beg=tok->lastTokVal().bb->begin_(); len=tok->lastTokVal().bb->getLength();
VALUE v=(VALUE)new String(beg, len);
i=tok->yylex();
beg=tok->lastTokVal().bb->begin_(); len=tok->lastTokVal().bb->getLength();
if (i!='E' || len!=3 || 0!=memcmp(beg,"run",3)) { unread=i; return v; }
/* Process external file inclusion */
assert(master==NULLP);
/* Imp: prevent infinite recursion */
if (specRuns!=NULLP && Qundef!=(w=specRuns->get(RSTRING(v)->begin_(), RSTRING(v)->getLength()))) {
master=new Parser((GenBuffer::Readable*)RVOID(w)->getPtr());
} else {
master=new Parser(RSTRING(v)->getCstr()); /* Open external file. */
}
MiniPS::delete0(v);
master->setDepth(depth+1);
master->setSpecRuns(specRuns);
goto from_master;
}
case '/':
beg=tok->lastTokVal().bb->begin_(); len=tok->lastTokVal().bb->getLength();
return (VALUE)new Sname(beg, len);
case ':': /* Real with metric */
return (VALUE)tok->lastTokVal().r;
case '.':
// fprintf(stderr, "d=%g\n", tok->lastTokVal().d);
// fprintf(stderr, "b=(%s)\n", tok->lastTokVal().b());
// assert(tok->lastTokVal().bb!=NULLP);
// beg=tok->lastTokVal().bb->begin_(); len=tok->lastTokVal().bb->getLength();
// r=new Real(tok->lastTokVal().d, beg, len);
r=tok->lastTokVal().r;
i=tok->yylex();
beg=tok->lastTokVal().bb->begin_(); len=tok->lastTokVal().bb->getLength();
if (i!='E' || len!=2 || (metric=Real::str2metric(beg))==Real::ME_COUNT) {
unread=i;
} else {
r->setMetric(metric);
}
return (VALUE)r;
case '1':
i=tok->yylex();
beg=tok->lastTokVal().bb->begin_(); len=tok->lastTokVal().bb->getLength();
if (i!='E' || len!=2 || (metric=Real::str2metric(beg))==Real::ME_COUNT) {
unread=i;
return Qinteger(tok->lastTokVal().i);
} else { /* integer with metric is auto-converted to Real */
r=new Real(tok->lastTokVal().i, beg, len);
r->setMetric(metric);
}
return (VALUE)r;
case 'E': {
beg=tok->lastTokVal().bb->begin_(); len=tok->lastTokVal().bb->getLength();
// fprintf(stderr, "L=%d\n", bb->getLength());
// assert(0);
tok->lastTokVal().bb->term0();
if (0==strcmp(beg,"true")) return Qtrue;
if (0==strcmp(beg,"false")) return Qfalse;
if (0==strcmp(beg,"null")) return Qnull;
if (closer==EOF_ILLEGAL_POP && 0==strcmp(beg,"pop")) return Qpop;
Error::sev((Error::level_t)sev) << "MiniPS::Parser: unknown Ename: " << (*tok->lastTokVal().bb) << (Error*)0;
return Qerror;
}
case '[': {
Array *ap=new Array();
VALUE v;
while (Qundef!=(v=parse1(']', sev))) { if (v==Qerror) return Qerror; ap->push(v); }
return (VALUE)ap;
}
case '<': {
Dict *ap=new Dict();
VALUE key, val;
while (1) {
if (Qundef==(key=parse1('>', sev))) break;
if (key==Qerror) return Qerror;
if (getType(key)!=T_SNAME) {
MiniPS::delete0(key);
Error::sev(Error::EERROR) << "MiniPS::Parser: dict key must be a /name" << (Error*)0;
return Qerror;
}
val=parse1(EOF_ILLEGAL_POP, sev); /* No EOF allowed here */
if (val==Qerror) {
MiniPS::delete0(key);
return Qerror;
}
if (val!=Qpop) {
// if (Qundef!=ap->push(RSNAME(key)->begin_(),RSNAME(key)->getLength(),val)) Error::sev(Error::EERROR) << "MiniPS::Parser: duplicate dict key" << (Error*)0;
/* ^^^ should free if non-fatal error */
if (Qundef!=(v=ap->push(RSNAME(key)->begin_(),RSNAME(key)->getLength(),val))) {
Error::sev(Error::WARNING) << "MiniPS::Parser: overriding previous dict key: " << RSNAME(key)->begin_() << (Error*)0;
MiniPS::delete0(v);
}
}
MiniPS::delete0(key);
}
return (VALUE)ap;
}
default:
assert(0);
}
return Qerror; /* NOTREACHED */
}
void MiniPS::scanf_dict(VALUE job, bool show_warnings, ...) {
va_list ap;
Dict *dict=RDICT(job);
char *key;
unsigned ty;
char hex3[3];
VALUE default_, *dst, got;
if (getType(job)!=T_DICT) Error::sev(Error::EERROR) << "scanf_dict: dict expected" << (Error*)0;
PTS_va_start(ap, show_warnings);
// "InputFile", MiniPS::T_STRING, MiniPS::Qundef, &InputFile,
// "OutputFile", MiniPS::T_STRING, MiniPS::Qundef, &OutputFile,
// "Profile", MiniPS::T_ARRAY, MiniPS::Qundef, &Profiles,
// NULLP
while (NULLP!=(key=va_arg(ap, char*))) {
slen_t keylen=strlen(key);
if (*key=='/') key++;
ty=va_arg(ap, unsigned);
default_=va_arg(ap, VALUE);
dst=va_arg(ap, VALUE*);
got=(show_warnings) ? dict->get1(key,keylen) : dict->get(key,keylen);
if (got==Qundef) {
got = (ty==S_SENUM) ? RDICT(default_)->get(" ",1) /* get the default value */
: (ty==S_FUNC) ? ((VALUE(*)(VALUE))default_)(Qundef)
: default_;
if (got==Qundef) Error::sev(Error::EERROR) << "scanf_dict: required key missing: /" << key << (Error*)0;
/* type of default value is unchecked deliberately */
} else switch (ty) {
case S_RGBSTR:
/* Dat: red is: (\377\0\0), (#f00), (#ff0000) */
if (getType(got)!=T_STRING || !(
RSTRING(got)->getLength()==3 /* Imp: `transparent -red' shouldn't work */
|| (RSTRING(got)->getLength()==4 && RSTRING(got)->begin_()[0]=='#' && !toHex3(RSTRING(got)->begin_()+1, hex3) && (got=(VALUE)new String(hex3, 3), true))
|| (RSTRING(got)->getLength()==7 && RSTRING(got)->begin_()[0]=='#' && !toHex6(RSTRING(got)->begin_()+1, hex3) && (got=(VALUE)new String(hex3, 3), true))
|| (RSTRING(got)->getLength()==6 && !toHex6(RSTRING(got)->begin_(), hex3) && (got=(VALUE)new String(hex3, 3), true))
)) Error::sev(Error::EERROR) << "scanf_dict: key /" << key << " must be an RGB color triplet" << (Error*)0;
break;
case S_SENUM:
if (getType(got)!=T_SNAME) Error::sev(Error::EERROR) << "scanf_dict: key /" << key << " must be an enum value (name)" << (Error*)0;
got=RDICT(default_)->get(RSNAME(got)->begin_(),RSNAME(got)->getLength());
if (got==Qundef) Error::sev(Error::EERROR) << "scanf_dict: key /" << key << " must be a valid enum value" << (Error*)0;
break;
case S_FUNC:
got=((VALUE(*)(VALUE))default_)(got);
if (got==Qundef) Error::sev(Error::EERROR) << "scanf_dict: key /" << key << " has invalid value" << (Error*)0;
break;
case S_UINTEGER:
if ((got&1)==0 || got<Qinteger(0)) Error::sev(Error::EERROR) << "scanf_dict: key /" << key << " must be a non-negative integer" << (Error*)0;
break;
case S_ANY:
break;
case S_PINTEGER:
if ((got&1)==0 || got<=Qinteger(0)) Error::sev(Error::EERROR) << "scanf_dict: key /" << key << " must be a positive integer" << (Error*)0;
break;
case S_NUMBER:
if ((got&1)==0 && getType(got)!=T_REAL) Error::sev(Error::EERROR) << "scanf_dict: key /" << key << " must be real or integer" << (Error*)0;
break;
case S_PNUMBER:
if ((got&1)==0 && getType(got)!=T_REAL) Error::sev(Error::EERROR) << "scanf_dict: key /" << key << " must be real or integer" << (Error*)0;
if (((got&1)!=0 && got<=Qinteger(0))
|| (getType(got)==T_REAL && RREAL(got)->getBp()<=0)
) Error::sev(Error::EERROR) << "scanf_dict: key /" << key << " must be positive" << (Error*)0;
break;
default:
if (getType(got)!=ty) Error::sev(Error::EERROR) << "scanf_dict: key /" << key << " must have type " << getTypeStr(ty) << (Error*)0;
}
*dst=got;
}
va_end(ap);
if (show_warnings) {
// VALUE *keyy, *val;
char const*const* keyy; slen_t keylen; VALUE *val;
bool touched = false; /* pacify gcc-4.2.1 by giving initial value */
dict->getFirst(keyy, keylen, val, touched);
// fprintf(stderr, "> %p\n", keyy);
PTS_va_start(ap, show_warnings);
while (keyy!=(char const*const*)NULLP) {
// fprintf(stderr, "untouch len=%u\n", keylen);
// fprintf(stderr, "untouching key=(%s)\n", *keyy);
if (!touched) Error::sev(Error::WARNING) << "scanf_dict: ignoring unknown key /" << SimBuffer::Static(*keyy,keylen) << (Error*)0;
else dict->untouch(*keyy, keylen); /* undo get1 */