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|
/* Generated by re2c 4.4 */
#line 1 "../lib/lex.re"
#include <stdint.h>
#include <stdio.h>
#include "src/encoding/enc.h"
#include "src/msg/msg.h"
#include "src/parse/ast.h"
#include "src/util/range.h"
#include "src/util/string_utils.h"
#include "parse.h"
#include "lib/lex.h"
namespace re2c {
static int32_t lex_cls_chr(const uint8_t*&, uint32_t&);
#line 27 "../lib/lex.re"
int lex(RE2C_LIB_STYPE* yylval, const uint8_t*& cur, Ast& ast) {
#line 26 "lib/lex.cc"
const uint8_t* yyt1;const uint8_t* yyt2;
#line 30 "../lib/lex.re"
const uint8_t* mar, *x, *y;
bool neg = false;
uint32_t l, u;
#line 35 "lib/lex.cc"
{
uint8_t yych;
static const unsigned char yybm[256] = {
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
128, 128, 128, 128, 128, 128, 128, 128,
128, 128, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0
};
yych = *cur;
if (yych <= '>') {
if (yych <= '\'') {
if (yych <= 0x00) goto yy1;
if (yych == '$') goto yy4;
goto yy2;
} else {
if (yych <= '+') goto yy5;
if (yych == '.') goto yy6;
goto yy2;
}
} else {
if (yych <= ']') {
if (yych <= '?') goto yy5;
if (yych == '[') goto yy7;
goto yy2;
} else {
if (yych <= 'z') {
if (yych <= '^') goto yy4;
goto yy2;
} else {
if (yych <= '{') goto yy8;
if (yych <= '|') goto yy5;
goto yy2;
}
}
}
yy1:
++cur;
#line 38 "../lib/lex.re"
{ return 0; }
#line 103 "lib/lex.cc"
yy2:
++cur;
yy3:
#line 73 "../lib/lex.re"
{
ast.temp_chars.push_back({cur[-1], NOWHERE});
yylval->regexp = ast.str(NOWHERE, false);
return TOKEN_REGEXP;
}
#line 113 "lib/lex.cc"
yy4:
++cur;
#line 42 "../lib/lex.re"
{
error("anchors are not supported");
return TOKEN_ERROR;
}
#line 121 "lib/lex.cc"
yy5:
++cur;
#line 40 "../lib/lex.re"
{ return cur[-1]; }
#line 126 "lib/lex.cc"
yy6:
++cur;
#line 68 "../lib/lex.re"
{
yylval->regexp = ast.dot(NOWHERE);
return TOKEN_REGEXP;
}
#line 134 "lib/lex.cc"
yy7:
yych = *++cur;
if (yych == '^') goto yy9;
#line 48 "../lib/lex.re"
{ goto cls; }
#line 140 "lib/lex.cc"
yy8:
yych = *(mar = ++cur);
if (yych <= '/') goto yy3;
if (yych <= '9') {
yyt1 = cur;
goto yy10;
}
goto yy3;
yy9:
++cur;
#line 47 "../lib/lex.re"
{ neg = true; goto cls; }
#line 153 "lib/lex.cc"
yy10:
yych = *++cur;
if (yybm[0+yych] & 128) goto yy10;
if (yych == ',') goto yy12;
if (yych == '}') goto yy13;
yy11:
cur = mar;
goto yy3;
yy12:
yych = *++cur;
if (yych <= '/') goto yy11;
if (yych <= '9') {
yyt2 = cur;
goto yy14;
}
if (yych == '}') goto yy15;
goto yy11;
yy13:
++cur;
x = yyt1;
#line 50 "../lib/lex.re"
{
if (!s_to_u32_unsafe(x, cur - 1, yylval->bounds.min)) goto err_cnt;
yylval->bounds.max = yylval->bounds.min;
return TOKEN_COUNT;
}
#line 180 "lib/lex.cc"
yy14:
yych = *++cur;
if (yych <= '/') goto yy11;
if (yych <= '9') goto yy14;
if (yych == '}') goto yy16;
goto yy11;
yy15:
++cur;
x = yyt1;
#line 62 "../lib/lex.re"
{
if (!s_to_u32_unsafe(x, cur - 2, yylval->bounds.min)) goto err_cnt;
yylval->bounds.max = Ast::MANY;
return TOKEN_COUNT;
}
#line 196 "lib/lex.cc"
yy16:
++cur;
x = yyt1;
y = yyt2;
#line 56 "../lib/lex.re"
{
if (!s_to_u32_unsafe(x, y - 1, yylval->bounds.min)
|| !s_to_u32_unsafe(y, cur - 1, yylval->bounds.max)) goto err_cnt;
return TOKEN_COUNT;
}
#line 207 "lib/lex.cc"
}
#line 78 "../lib/lex.re"
cls:
if (lex_cls_chr(cur, l) != 0) goto err;
#line 215 "lib/lex.cc"
{
uint8_t yych;
yych = *(mar = cur);
if (yych == '-') goto yy19;
yy18:
#line 83 "../lib/lex.re"
{ u = l; goto add; }
#line 223 "lib/lex.cc"
yy19:
yych = *++cur;
if (yych != ']') goto yy20;
cur = mar;
goto yy18;
yy20:
++cur;
cur -= 1;
#line 84 "../lib/lex.re"
{ if (lex_cls_chr(cur, u) != 0) goto err; goto add; }
#line 234 "lib/lex.cc"
}
#line 85 "../lib/lex.re"
add:
if (l > u) goto err;
ast.temp_ranges.push_back(AstRange(l, u, NOWHERE));
#line 242 "lib/lex.cc"
{
uint8_t yych;
yych = *cur;
if (yych == ']') goto yy22;
#line 90 "../lib/lex.re"
{ goto cls; }
#line 249 "lib/lex.cc"
yy22:
++cur;
#line 91 "../lib/lex.re"
{
yylval->regexp = ast.cls(NOWHERE, neg);
return TOKEN_REGEXP;
}
#line 257 "lib/lex.cc"
}
#line 95 "../lib/lex.re"
err:
error("syntax error: %s\n", cur);
return TOKEN_ERROR;
err_cnt:
error("repetition count overflow");
return TOKEN_ERROR;
}
int32_t lex_cls_chr(const uint8_t*& cur, uint32_t& c) {
const uint8_t* mar, *p = cur;
#line 274 "lib/lex.cc"
{
uint8_t yych;
yych = *cur;
if (yych <= 0x00) goto yy24;
if (yych <= 'Z') goto yy25;
if (yych <= '[') goto yy27;
if (yych <= '\\') goto yy28;
goto yy25;
yy24:
++cur;
#line 109 "../lib/lex.re"
{ return 1; }
#line 287 "lib/lex.cc"
yy25:
++cur;
yy26:
#line 127 "../lib/lex.re"
{ c = cur[-1]; return 0; }
#line 293 "lib/lex.cc"
yy27:
yych = *++cur;
if (yych <= '9') {
if (yych == '.') goto yy30;
goto yy26;
} else {
if (yych <= ':') goto yy31;
if (yych == '=') goto yy32;
goto yy26;
}
yy28:
yych = *(mar = ++cur);
switch (yych) {
case '\\': goto yy33;
case ']': goto yy34;
case 'a': goto yy35;
case 'b': goto yy36;
case 'f': goto yy37;
case 'n': goto yy38;
case 'r': goto yy39;
case 't': goto yy40;
case 'v': goto yy41;
case 'x': goto yy42;
default: goto yy29;
}
yy29:
#line 116 "../lib/lex.re"
{ c = '\\'_u8; return 0; }
#line 322 "lib/lex.cc"
yy30:
++cur;
#line 110 "../lib/lex.re"
{ error("collating characters not supported"); return 1; }
#line 327 "lib/lex.cc"
yy31:
++cur;
#line 111 "../lib/lex.re"
{ error("character classes not supported"); return 1; }
#line 332 "lib/lex.cc"
yy32:
++cur;
#line 112 "../lib/lex.re"
{ error("equivalence classes not supported"); return 1; }
#line 337 "lib/lex.cc"
yy33:
++cur;
#line 124 "../lib/lex.re"
{ c = '\\'_u8; return 0; }
#line 342 "lib/lex.cc"
yy34:
++cur;
#line 125 "../lib/lex.re"
{ c = ']'_u8; return 0; }
#line 347 "lib/lex.cc"
yy35:
++cur;
#line 117 "../lib/lex.re"
{ c = '\a'_u8; return 0; }
#line 352 "lib/lex.cc"
yy36:
++cur;
#line 118 "../lib/lex.re"
{ c = '\b'_u8; return 0; }
#line 357 "lib/lex.cc"
yy37:
++cur;
#line 119 "../lib/lex.re"
{ c = '\f'_u8; return 0; }
#line 362 "lib/lex.cc"
yy38:
++cur;
#line 120 "../lib/lex.re"
{ c = '\n'_u8; return 0; }
#line 367 "lib/lex.cc"
yy39:
++cur;
#line 121 "../lib/lex.re"
{ c = '\r'_u8; return 0; }
#line 372 "lib/lex.cc"
yy40:
++cur;
#line 122 "../lib/lex.re"
{ c = '\t'_u8; return 0; }
#line 377 "lib/lex.cc"
yy41:
++cur;
#line 123 "../lib/lex.re"
{ c = '\v'_u8; return 0; }
#line 382 "lib/lex.cc"
yy42:
yych = *++cur;
if (yych <= '@') {
if (yych <= '/') goto yy43;
if (yych <= '9') goto yy44;
} else {
if (yych <= 'F') goto yy44;
if (yych <= '`') goto yy43;
if (yych <= 'f') goto yy44;
}
yy43:
cur = mar;
goto yy29;
yy44:
yych = *++cur;
if (yych <= '@') {
if (yych <= '/') goto yy43;
if (yych >= ':') goto yy43;
} else {
if (yych <= 'F') goto yy45;
if (yych <= '`') goto yy43;
if (yych >= 'g') goto yy43;
}
yy45:
++cur;
#line 114 "../lib/lex.re"
{ c = unesc_hex(p, cur); return 0; }
#line 410 "lib/lex.cc"
}
#line 128 "../lib/lex.re"
}
} // namespace re2c
|
