mirror of
https://github.com/ZDoom/gzdoom-gles.git
synced 2024-11-06 21:11:43 +00:00
ec17f5a5b9
error handling. - Fixed: dehsupp/scanner.re defined "}" as the token RPAREN. dehsupp/parse.y also defined action_list_def as needing a RBARCE. I'm surprised it worked at all before. I guess Lemon really was too accepting. - Changed the way that xlatcc handles include statements so that I don't need to modify the logic of lempar.c. I also discovered that the grammar was improperly defined and only accepted the first statement. It worked before because Lemon used to accept multiple times before reaching the EOF token. I have also verified that it is still generating the proper lumps. - Removed some unused wadsrc files from the repository. - Fixed my re2c upgrade. - Updated lemon.c to v1.53. SVN r711 (trunk)
1062 lines
17 KiB
C++
1062 lines
17 KiB
C++
/* $Id: actions.cc 608 2006-11-05 00:48:30Z helly $ */
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#include <time.h>
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#include <string.h>
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#include <iostream>
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#include <iomanip>
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#include <cctype>
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#include "globals.h"
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#include "parser.h"
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#include "dfa.h"
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namespace re2c
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{
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void Symbol::ClearTable()
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{
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for (SymbolTable::iterator it = symbol_table.begin(); it != symbol_table.end(); ++it)
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{
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delete it->second;
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}
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symbol_table.clear();
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}
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Symbol::SymbolTable Symbol::symbol_table;
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Symbol *Symbol::find(const SubStr &str)
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{
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const std::string ss(str.to_string());
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SymbolTable::const_iterator it = symbol_table.find(ss);
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if (it == symbol_table.end())
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{
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return (*symbol_table.insert(SymbolTable::value_type(ss, new Symbol(str))).first).second;
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}
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return (*it).second;
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}
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void showIns(std::ostream &o, const Ins &i, const Ins &base)
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{
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o.width(3);
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o << &i - &base << ": ";
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switch (i.i.tag)
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{
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case CHAR:
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{
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o << "match ";
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for (const Ins *j = &(&i)[1]; j < (Ins*) i.i.link; ++j)
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prtCh(o, j->c.value);
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break;
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}
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case GOTO:
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o << "goto " << ((Ins*) i.i.link - &base);
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break;
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case FORK:
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o << "fork " << ((Ins*) i.i.link - &base);
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break;
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case CTXT:
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o << "ctxt";
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break;
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case TERM:
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o << "term " << ((RuleOp*) i.i.link)->accept;
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break;
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}
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o << "\n";
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}
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uint RegExp::fixedLength()
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{
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return ~0;
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}
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const char *NullOp::type = "NullOp";
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void NullOp::calcSize(Char*)
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{
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size = 0;
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}
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uint NullOp::fixedLength()
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{
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return 0;
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}
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void NullOp::compile(Char*, Ins*)
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{
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;
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}
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void NullOp::split(CharSet&)
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{
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;
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}
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std::ostream& operator<<(std::ostream &o, const Range &r)
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{
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if ((r.ub - r.lb) == 1)
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{
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prtCh(o, r.lb);
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}
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else
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{
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prtCh(o, r.lb);
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o << "-";
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prtCh(o, r.ub - 1);
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}
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return o << r.next;
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}
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Range *doUnion(Range *r1, Range *r2)
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{
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Range *r, **rP = &r;
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for (;;)
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{
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Range *s;
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if (r1->lb <= r2->lb)
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{
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s = new Range(*r1);
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}
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else
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{
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s = new Range(*r2);
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}
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*rP = s;
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rP = &s->next;
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for (;;)
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{
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if (r1->lb <= r2->lb)
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{
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if (r1->lb > s->ub)
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break;
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if (r1->ub > s->ub)
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s->ub = r1->ub;
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if (!(r1 = r1->next))
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{
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uint ub = 0;
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for (; r2 && r2->lb <= s->ub; r2 = r2->next)
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ub = r2->ub;
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if (ub > s->ub)
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s->ub = ub;
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*rP = r2;
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return r;
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}
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}
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else
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{
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if (r2->lb > s->ub)
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break;
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if (r2->ub > s->ub)
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s->ub = r2->ub;
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if (!(r2 = r2->next))
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{
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uint ub = 0;
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for (; r1 && r1->lb <= s->ub; r1 = r1->next)
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ub = r1->ub;
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if (ub > s->ub)
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s->ub = ub;
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*rP = r1;
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return r;
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}
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}
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}
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}
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*rP = NULL;
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return r;
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}
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Range *doDiff(Range *r1, Range *r2)
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{
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Range *r, *s, **rP = &r;
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for (; r1; r1 = r1->next)
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{
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uint lb = r1->lb;
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for (; r2 && r2->ub <= r1->lb; r2 = r2->next)
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;
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for (; r2 && r2->lb < r1->ub; r2 = r2->next)
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{
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if (lb < r2->lb)
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{
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*rP = s = new Range(lb, r2->lb);
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rP = &s->next;
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}
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if ((lb = r2->ub) >= r1->ub)
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goto noMore;
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}
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*rP = s = new Range(lb, r1->ub);
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rP = &s->next;
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noMore:
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;
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}
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*rP = NULL;
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return r;
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}
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MatchOp *merge(MatchOp *m1, MatchOp *m2)
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{
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if (!m1)
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return m2;
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if (!m2)
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return m1;
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return new MatchOp(doUnion(m1->match, m2->match));
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}
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const char *MatchOp::type = "MatchOp";
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void MatchOp::display(std::ostream &o) const
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{
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o << match;
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}
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void MatchOp::calcSize(Char *rep)
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{
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size = 1;
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for (Range *r = match; r; r = r->next)
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for (uint c = r->lb; c < r->ub; ++c)
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if (rep[c] == c)
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++size;
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}
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uint MatchOp::fixedLength()
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{
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return 1;
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}
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void MatchOp::compile(Char *rep, Ins *i)
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{
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i->i.tag = CHAR;
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i->i.link = &i[size];
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Ins *j = &i[1];
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uint bump = size;
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for (Range *r = match; r; r = r->next)
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{
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for (uint c = r->lb; c < r->ub; ++c)
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{
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if (rep[c] == c)
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{
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j->c.value = c;
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j->c.bump = --bump;
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j++;
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}
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}
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}
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}
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void MatchOp::split(CharSet &s)
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{
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for (Range *r = match; r; r = r->next)
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{
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for (uint c = r->lb; c < r->ub; ++c)
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{
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CharPtn *x = s.rep[c], *a = x->nxt;
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if (!a)
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{
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if (x->card == 1)
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continue;
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x->nxt = a = s.freeHead;
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if (!(s.freeHead = s.freeHead->nxt))
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s.freeTail = &s.freeHead;
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a->nxt = NULL;
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x->fix = s.fix;
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s.fix = x;
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}
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if (--(x->card) == 0)
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{
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*s.freeTail = x;
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*(s.freeTail = &x->nxt) = NULL;
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}
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s.rep[c] = a;
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++(a->card);
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}
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}
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for (; s.fix; s.fix = s.fix->fix)
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if (s.fix->card)
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s.fix->nxt = NULL;
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}
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RegExp * mkDiff(RegExp *e1, RegExp *e2)
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{
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MatchOp *m1, *m2;
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if (!(m1 = (MatchOp*) e1->isA(MatchOp::type)))
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return NULL;
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if (!(m2 = (MatchOp*) e2->isA(MatchOp::type)))
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return NULL;
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Range *r = doDiff(m1->match, m2->match);
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return r ? (RegExp*) new MatchOp(r) : (RegExp*) new NullOp;
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}
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RegExp *doAlt(RegExp *e1, RegExp *e2)
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{
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if (!e1)
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return e2;
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if (!e2)
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return e1;
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return new AltOp(e1, e2);
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}
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RegExp *mkAlt(RegExp *e1, RegExp *e2)
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{
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AltOp *a;
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MatchOp *m1, *m2;
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if ((a = (AltOp*) e1->isA(AltOp::type)))
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{
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if ((m1 = (MatchOp*) a->exp1->isA(MatchOp::type)))
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e1 = a->exp2;
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}
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else if ((m1 = (MatchOp*) e1->isA(MatchOp::type)))
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{
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e1 = NULL;
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}
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if ((a = (AltOp*) e2->isA(AltOp::type)))
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{
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if ((m2 = (MatchOp*) a->exp1->isA(MatchOp::type)))
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e2 = a->exp2;
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}
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else if ((m2 = (MatchOp*) e2->isA(MatchOp::type)))
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{
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e2 = NULL;
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}
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return doAlt(merge(m1, m2), doAlt(e1, e2));
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}
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const char *AltOp::type = "AltOp";
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void AltOp::calcSize(Char *rep)
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{
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exp1->calcSize(rep);
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exp2->calcSize(rep);
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size = exp1->size + exp2->size + 2;
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}
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uint AltOp::fixedLength()
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{
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uint l1 = exp1->fixedLength();
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uint l2 = exp1->fixedLength();
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if (l1 != l2 || l1 == ~0u)
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return ~0;
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return l1;
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}
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void AltOp::compile(Char *rep, Ins *i)
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{
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i->i.tag = FORK;
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Ins *j = &i[exp1->size + 1];
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i->i.link = &j[1];
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exp1->compile(rep, &i[1]);
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j->i.tag = GOTO;
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j->i.link = &j[exp2->size + 1];
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exp2->compile(rep, &j[1]);
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}
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void AltOp::split(CharSet &s)
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{
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exp1->split(s);
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exp2->split(s);
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}
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const char *CatOp::type = "CatOp";
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void CatOp::calcSize(Char *rep)
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{
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exp1->calcSize(rep);
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exp2->calcSize(rep);
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size = exp1->size + exp2->size;
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}
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uint CatOp::fixedLength()
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{
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uint l1, l2;
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if ((l1 = exp1->fixedLength()) != ~0u )
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if ((l2 = exp2->fixedLength()) != ~0u)
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return l1 + l2;
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return ~0u;
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}
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void CatOp::compile(Char *rep, Ins *i)
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{
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exp1->compile(rep, &i[0]);
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exp2->compile(rep, &i[exp1->size]);
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}
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void CatOp::split(CharSet &s)
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{
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exp1->split(s);
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exp2->split(s);
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}
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const char *CloseOp::type = "CloseOp";
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void CloseOp::calcSize(Char *rep)
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{
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exp->calcSize(rep);
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size = exp->size + 1;
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}
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void CloseOp::compile(Char *rep, Ins *i)
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{
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exp->compile(rep, &i[0]);
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i += exp->size;
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i->i.tag = FORK;
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i->i.link = i - exp->size;
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}
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void CloseOp::split(CharSet &s)
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{
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exp->split(s);
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}
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const char *CloseVOp::type = "CloseVOp";
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void CloseVOp::calcSize(Char *rep)
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{
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exp->calcSize(rep);
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if (max >= 0)
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{
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size = (exp->size * min) + ((1 + exp->size) * (max - min));
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}
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else
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{
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size = (exp->size * min) + 1;
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}
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}
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void CloseVOp::compile(Char *rep, Ins *i)
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{
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Ins *jumppoint;
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int st;
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jumppoint = i + ((1 + exp->size) * (max - min));
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for (st = min; st < max; st++)
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{
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i->i.tag = FORK;
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i->i.link = jumppoint;
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i++;
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exp->compile(rep, &i[0]);
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i += exp->size;
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}
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for (st = 0; st < min; st++)
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{
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exp->compile(rep, &i[0]);
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i += exp->size;
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if (max < 0 && st == 0)
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{
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i->i.tag = FORK;
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i->i.link = i - exp->size;
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i++;
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}
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}
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}
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void CloseVOp::split(CharSet &s)
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{
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exp->split(s);
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}
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RegExp *expr(Scanner &);
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uint Scanner::unescape(SubStr &s) const
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{
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static const char * hex = "0123456789abcdef";
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static const char * oct = "01234567";
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s.len--;
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uint c, ucb = 0;
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if ((c = *s.str++) != '\\' || s.len == 0)
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{
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return xlat(c);
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}
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s.len--;
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switch (c = *s.str++)
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{
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case 'n': return xlat('\n');
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case 't': return xlat('\t');
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case 'v': return xlat('\v');
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case 'b': return xlat('\b');
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case 'r': return xlat('\r');
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case 'f': return xlat('\f');
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case 'a': return xlat('\a');
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case 'x':
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{
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if (s.len < 2)
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{
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fatal(s.ofs()+s.len, "Illegal hexadecimal character code, two hexadecimal digits are required");
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return ~0;
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}
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const char *p1 = strchr(hex, tolower(s.str[0]));
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const char *p2 = strchr(hex, tolower(s.str[1]));
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if (!p1 || !p2)
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{
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fatal(s.ofs()+(p1?1:0), "Illegal hexadecimal character code");
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return ~0;
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}
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else
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{
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s.len -= 2;
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s.str += 2;
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uint v = (uint)((p1 - hex) << 4)
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+ (uint)((p2 - hex));
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return v;
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}
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}
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|
|
|
case 'U':
|
|
{
|
|
if (s.len < 8)
|
|
{
|
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fatal(s.ofs()+s.len, "Illegal unicode character, eight hexadecimal digits are required");
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|
return ~0;
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}
|
|
|
|
uint l = 0;
|
|
|
|
if (s.str[0] == '0')
|
|
{
|
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l++;
|
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if (s.str[1] == '0')
|
|
{
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l++;
|
|
if (s.str[2] == '0' || (s.str[2] == '1' && uFlag))
|
|
{
|
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l++;
|
|
if (uFlag) {
|
|
const char *u3 = strchr(hex, tolower(s.str[2]));
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const char *u4 = strchr(hex, tolower(s.str[3]));
|
|
if (u3 && u4)
|
|
{
|
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ucb = (uint)((u3 - hex) << 20)
|
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+ (uint)((u4 - hex) << 16);
|
|
l++;
|
|
}
|
|
}
|
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else if (s.str[3] == '0')
|
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{
|
|
l++;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (l != 4)
|
|
{
|
|
fatal(s.ofs()+l, "Illegal unicode character, eight hexadecimal digits are required");
|
|
}
|
|
|
|
s.len -= 4;
|
|
s.str += 4;
|
|
|
|
// no break;
|
|
}
|
|
case 'X':
|
|
case 'u':
|
|
{
|
|
if (s.len < 4)
|
|
{
|
|
fatal(s.ofs()+s.len,
|
|
c == 'X'
|
|
? "Illegal hexadecimal character code, four hexadecimal digits are required"
|
|
: "Illegal unicode character, four hexadecimal digits are required");
|
|
return ~0;
|
|
}
|
|
|
|
const char *p1 = strchr(hex, tolower(s.str[0]));
|
|
const char *p2 = strchr(hex, tolower(s.str[1]));
|
|
const char *p3 = strchr(hex, tolower(s.str[2]));
|
|
const char *p4 = strchr(hex, tolower(s.str[3]));
|
|
|
|
if (!p1 || !p2 || !p3 || !p4)
|
|
{
|
|
fatal(s.ofs()+(p1?1:0)+(p2?1:0)+(p3?1:0),
|
|
c == 'X'
|
|
? "Illegal hexadecimal character code, non hexxdecimal digit found"
|
|
: "Illegal unicode character, non hexadecimal digit found");
|
|
return ~0;
|
|
}
|
|
else
|
|
{
|
|
s.len -= 4;
|
|
s.str += 4;
|
|
|
|
uint v = (uint)((p1 - hex) << 12)
|
|
+ (uint)((p2 - hex) << 8)
|
|
+ (uint)((p3 - hex) << 4)
|
|
+ (uint)((p4 - hex))
|
|
+ ucb;
|
|
|
|
if (v >= nRealChars)
|
|
{
|
|
fatal(s.ofs(),
|
|
c == 'X'
|
|
? "Illegal hexadecimal character code, out of range"
|
|
: "Illegal unicode character, out of range");
|
|
}
|
|
|
|
return v;
|
|
}
|
|
}
|
|
|
|
case '4':
|
|
case '5':
|
|
case '6':
|
|
case '7':
|
|
{
|
|
fatal(s.ofs()-1, "Illegal octal character code, first digit must be 0 thru 3");
|
|
return ~0;
|
|
}
|
|
|
|
case '0':
|
|
case '1':
|
|
case '2':
|
|
case '3':
|
|
{
|
|
if (s.len < 2)
|
|
{
|
|
fatal(s.ofs()+s.len, "Illegal octal character code, three octal digits are required");
|
|
return ~0;
|
|
}
|
|
|
|
const char *p0 = strchr(oct, c);
|
|
const char *p1 = strchr(oct, s.str[0]);
|
|
const char *p2 = strchr(oct, s.str[1]);
|
|
|
|
if (!p0 || !p1 || !p2)
|
|
{
|
|
fatal(s.ofs()+(p1?1:0), "Illegal octal character code, non octal digit found");
|
|
return ~0;
|
|
}
|
|
else
|
|
{
|
|
s.len -= 2;
|
|
s.str += 2;
|
|
|
|
uint v = (uint)((p0 - oct) << 6) + (uint)((p1 - oct) << 3) + (uint)(p2 - oct);
|
|
|
|
return v;
|
|
}
|
|
}
|
|
|
|
default:
|
|
return xlat(c);
|
|
}
|
|
}
|
|
|
|
std::string& Scanner::unescape(SubStr& str_in, std::string& str_out) const
|
|
{
|
|
str_out.clear();
|
|
|
|
while(str_in.len)
|
|
{
|
|
uint c = unescape(str_in);
|
|
|
|
if (c > 0xFF)
|
|
{
|
|
fatal(str_in.ofs(), "Illegal character");
|
|
}
|
|
|
|
str_out += static_cast<char>(c);
|
|
}
|
|
|
|
return str_out;
|
|
}
|
|
|
|
Range * Scanner::getRange(SubStr &s) const
|
|
{
|
|
uint lb = unescape(s), ub, xlb, xub, c;
|
|
|
|
if (s.len < 2 || *s.str != '-')
|
|
{
|
|
ub = lb;
|
|
}
|
|
else
|
|
{
|
|
s.len--;
|
|
s.str++;
|
|
ub = unescape(s);
|
|
|
|
if (ub < lb)
|
|
{
|
|
uint tmp = lb;
|
|
lb = ub;
|
|
ub = tmp;
|
|
}
|
|
|
|
xlb = xlat(lb);
|
|
xub = xlat(ub);
|
|
|
|
for(c = lb; c <= ub; c++)
|
|
{
|
|
if (!(xlb <= xlat(c) && xlat(c) <= ub))
|
|
{
|
|
/* range doesn't work */
|
|
Range * r = new Range(xlb, xlb + 1);
|
|
for (c = lb + 1; c <= ub; c++)
|
|
{
|
|
r = doUnion(r, new Range(xlat(c), xlat(c) + 1));
|
|
}
|
|
return r;
|
|
}
|
|
}
|
|
|
|
lb = xlb;
|
|
ub = xub;
|
|
}
|
|
|
|
return new Range(lb, ub + 1);
|
|
}
|
|
|
|
RegExp * Scanner::matchChar(uint c) const
|
|
{
|
|
return new MatchOp(new Range(c, c + 1));
|
|
}
|
|
|
|
RegExp * Scanner::strToRE(SubStr s) const
|
|
{
|
|
s.len -= 2;
|
|
s.str += 1;
|
|
|
|
if (s.len == 0)
|
|
return new NullOp;
|
|
|
|
RegExp *re = matchChar(unescape(s));
|
|
|
|
while (s.len > 0)
|
|
re = new CatOp(re, matchChar(unescape(s)));
|
|
|
|
return re;
|
|
}
|
|
|
|
RegExp * Scanner::strToCaseInsensitiveRE(SubStr s) const
|
|
{
|
|
s.len -= 2;
|
|
s.str += 1;
|
|
|
|
if (s.len == 0)
|
|
return new NullOp;
|
|
|
|
uint c = unescape(s);
|
|
|
|
RegExp *re, *reL, *reU;
|
|
|
|
if ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z'))
|
|
{
|
|
reL = matchChar(xlat(tolower(c)));
|
|
reU = matchChar(xlat(toupper(c)));
|
|
re = mkAlt(reL, reU);
|
|
}
|
|
else
|
|
{
|
|
re = matchChar(c);
|
|
}
|
|
|
|
while (s.len > 0)
|
|
{
|
|
uint c = unescape(s);
|
|
|
|
if ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z'))
|
|
{
|
|
reL = matchChar(xlat(tolower(c)));
|
|
reU = matchChar(xlat(toupper(c)));
|
|
re = new CatOp(re, mkAlt(reL, reU));
|
|
}
|
|
else
|
|
{
|
|
re = new CatOp(re, matchChar(c));
|
|
}
|
|
}
|
|
|
|
return re;
|
|
}
|
|
|
|
RegExp * Scanner::ranToRE(SubStr s) const
|
|
{
|
|
s.len -= 2;
|
|
s.str += 1;
|
|
|
|
if (s.len == 0)
|
|
return new NullOp;
|
|
|
|
Range *r = getRange(s);
|
|
|
|
while (s.len > 0)
|
|
r = doUnion(r, getRange(s));
|
|
|
|
return new MatchOp(r);
|
|
}
|
|
|
|
RegExp * Scanner::invToRE(SubStr s) const
|
|
{
|
|
s.len--;
|
|
s.str++;
|
|
|
|
RegExp * any = ranToRE(SubStr(wFlag ? "[\\X0000-\\XFFFF]" : "[\\000-\\377]"));
|
|
|
|
if (s.len <= 2)
|
|
{
|
|
return any;
|
|
}
|
|
|
|
RegExp * ran = ranToRE(s);
|
|
RegExp * inv = mkDiff(any, ran);
|
|
|
|
delete ran;
|
|
delete any;
|
|
|
|
return inv;
|
|
}
|
|
|
|
RegExp * Scanner::mkDot() const
|
|
{
|
|
RegExp * any = ranToRE(SubStr(wFlag ? "[\\X0000-\\XFFFF]" : "[\\000-\\377]"));
|
|
RegExp * ran = matchChar(xlat('\n'));
|
|
RegExp * inv = mkDiff(any, ran);
|
|
|
|
delete ran;
|
|
delete any;
|
|
|
|
return inv;
|
|
}
|
|
|
|
const char *RuleOp::type = "RuleOp";
|
|
|
|
RuleOp::RuleOp(RegExp *e, RegExp *c, Token *t, uint a)
|
|
: exp(e)
|
|
, ctx(c)
|
|
, ins(NULL)
|
|
, accept(a)
|
|
, code(t)
|
|
, line(0)
|
|
{
|
|
;
|
|
}
|
|
|
|
void RuleOp::calcSize(Char *rep)
|
|
{
|
|
exp->calcSize(rep);
|
|
ctx->calcSize(rep);
|
|
size = exp->size + (ctx->size ? ctx->size + 2 : 1);
|
|
}
|
|
|
|
void RuleOp::compile(Char *rep, Ins *i)
|
|
{
|
|
ins = i;
|
|
exp->compile(rep, &i[0]);
|
|
i += exp->size;
|
|
if (ctx->size)
|
|
{
|
|
i->i.tag = CTXT;
|
|
i->i.link = &i[1];
|
|
i++;
|
|
ctx->compile(rep, &i[0]);
|
|
i += ctx->size;
|
|
}
|
|
i->i.tag = TERM;
|
|
i->i.link = this;
|
|
}
|
|
|
|
void RuleOp::split(CharSet &s)
|
|
{
|
|
exp->split(s);
|
|
ctx->split(s);
|
|
}
|
|
|
|
void optimize(Ins *i)
|
|
{
|
|
while (!isMarked(i))
|
|
{
|
|
mark(i);
|
|
|
|
if (i->i.tag == CHAR)
|
|
{
|
|
i = (Ins*) i->i.link;
|
|
}
|
|
else if (i->i.tag == GOTO || i->i.tag == FORK)
|
|
{
|
|
Ins *target = (Ins*) i->i.link;
|
|
optimize(target);
|
|
|
|
if (target->i.tag == GOTO)
|
|
i->i.link = target->i.link == target ? i : target;
|
|
|
|
if (i->i.tag == FORK)
|
|
{
|
|
Ins *follow = (Ins*) & i[1];
|
|
optimize(follow);
|
|
|
|
if (follow->i.tag == GOTO && follow->i.link == follow)
|
|
{
|
|
i->i.tag = GOTO;
|
|
}
|
|
else if (i->i.link == i)
|
|
{
|
|
i->i.tag = GOTO;
|
|
i->i.link = follow;
|
|
}
|
|
}
|
|
|
|
return ;
|
|
}
|
|
else
|
|
{
|
|
++i;
|
|
}
|
|
}
|
|
}
|
|
|
|
void genCode(std::ostream& o, RegExp *re)
|
|
{
|
|
genCode(o, 0, re);
|
|
}
|
|
|
|
CharSet::CharSet()
|
|
: fix(0)
|
|
, freeHead(0)
|
|
, freeTail(0)
|
|
, rep(new CharPtr[nRealChars])
|
|
, ptn(new CharPtn[nRealChars])
|
|
{
|
|
for (uint j = 0; j < nRealChars; ++j)
|
|
{
|
|
rep[j] = &ptn[0];
|
|
ptn[j].nxt = &ptn[j + 1]; /* wrong for j=nRealChars but will be corrected below */
|
|
ptn[j].card = 0;
|
|
}
|
|
|
|
freeHead = &ptn[1];
|
|
*(freeTail = &ptn[nRealChars - 1].nxt) = NULL;
|
|
ptn[0].card = nRealChars;
|
|
ptn[0].nxt = NULL;
|
|
}
|
|
|
|
CharSet::~CharSet()
|
|
{
|
|
delete[] rep;
|
|
delete[] ptn;
|
|
}
|
|
|
|
void genCode(std::ostream& o, uint ind, RegExp *re)
|
|
{
|
|
CharSet cs;
|
|
uint j;
|
|
|
|
re->split(cs);
|
|
/*
|
|
for(uint k = 0; k < nChars;){
|
|
for(j = k; ++k < nRealChars && cs.rep[k] == cs.rep[j];);
|
|
printSpan(cerr, j, k);
|
|
cerr << "\t" << cs.rep[j] - &cs.ptn[0] << endl;
|
|
}
|
|
*/
|
|
Char *rep = new Char[nRealChars];
|
|
|
|
for (j = 0; j < nRealChars; ++j)
|
|
{
|
|
if (!cs.rep[j]->nxt)
|
|
cs.rep[j]->nxt = &cs.ptn[j];
|
|
|
|
rep[j] = (Char) (cs.rep[j]->nxt - &cs.ptn[0]);
|
|
}
|
|
|
|
re->calcSize(rep);
|
|
Ins *ins = new Ins[re->size + 1];
|
|
memset(ins, 0, (re->size + 1)*sizeof(Ins));
|
|
re->compile(rep, ins);
|
|
Ins *eoi = &ins[re->size];
|
|
eoi->i.tag = GOTO;
|
|
eoi->i.link = eoi;
|
|
|
|
optimize(ins);
|
|
|
|
for (j = 0; j < re->size;)
|
|
{
|
|
unmark(&ins[j]);
|
|
|
|
if (ins[j].i.tag == CHAR)
|
|
{
|
|
j = (Ins*) ins[j].i.link - ins;
|
|
}
|
|
else
|
|
{
|
|
j++;
|
|
}
|
|
}
|
|
|
|
DFA *dfa = new DFA(ins, re->size, 0, nRealChars, rep);
|
|
dfa->emit(o, ind);
|
|
delete dfa;
|
|
delete [] ins;
|
|
delete [] rep;
|
|
}
|
|
|
|
} // end namespace re2c
|
|
|